1 /* IBM S/390-specific support for 64-bit ELF
2 Copyright (C) 2000-2016 Free Software Foundation, Inc.
3 Contributed Martin Schwidefsky (schwidefsky@de.ibm.com).
5 This file is part of BFD, the Binary File Descriptor library.
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 3 of the License, or
10 (at your option) any later version.
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with this program; if not, write to the Free Software
19 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA
30 /* In case we're on a 32-bit machine, construct a 64-bit "-1" value
31 from smaller values. Start with zero, widen, *then* decrement. */
32 #define MINUS_ONE (((bfd_vma)0) - 1)
34 static bfd_reloc_status_type
35 s390_tls_reloc (bfd
*, arelent
*, asymbol
*, void *,
36 asection
*, bfd
*, char **);
37 static bfd_reloc_status_type
38 s390_elf_ldisp_reloc (bfd
*, arelent
*, asymbol
*, void *,
39 asection
*, bfd
*, char **);
41 /* The relocation "howto" table. */
42 static reloc_howto_type elf_howto_table
[] =
44 HOWTO (R_390_NONE
, /* type */
46 3, /* size (0 = byte, 1 = 2 byte, 2 = 4 byte) */
48 FALSE
, /* pc_relative */
50 complain_overflow_dont
, /* complain_on_overflow */
51 bfd_elf_generic_reloc
, /* special_function */
52 "R_390_NONE", /* name */
53 FALSE
, /* partial_inplace */
56 FALSE
), /* pcrel_offset */
58 HOWTO(R_390_8
, 0, 0, 8, FALSE
, 0, complain_overflow_bitfield
,
59 bfd_elf_generic_reloc
, "R_390_8", FALSE
, 0,0x000000ff, FALSE
),
60 HOWTO(R_390_12
, 0, 1, 12, FALSE
, 0, complain_overflow_dont
,
61 bfd_elf_generic_reloc
, "R_390_12", FALSE
, 0,0x00000fff, FALSE
),
62 HOWTO(R_390_16
, 0, 1, 16, FALSE
, 0, complain_overflow_bitfield
,
63 bfd_elf_generic_reloc
, "R_390_16", FALSE
, 0,0x0000ffff, FALSE
),
64 HOWTO(R_390_32
, 0, 2, 32, FALSE
, 0, complain_overflow_bitfield
,
65 bfd_elf_generic_reloc
, "R_390_32", FALSE
, 0,0xffffffff, FALSE
),
66 HOWTO(R_390_PC32
, 0, 2, 32, TRUE
, 0, complain_overflow_bitfield
,
67 bfd_elf_generic_reloc
, "R_390_PC32", FALSE
, 0,0xffffffff, TRUE
),
68 HOWTO(R_390_GOT12
, 0, 1, 12, FALSE
, 0, complain_overflow_bitfield
,
69 bfd_elf_generic_reloc
, "R_390_GOT12", FALSE
, 0,0x00000fff, FALSE
),
70 HOWTO(R_390_GOT32
, 0, 2, 32, FALSE
, 0, complain_overflow_bitfield
,
71 bfd_elf_generic_reloc
, "R_390_GOT32", FALSE
, 0,0xffffffff, FALSE
),
72 HOWTO(R_390_PLT32
, 0, 2, 32, TRUE
, 0, complain_overflow_bitfield
,
73 bfd_elf_generic_reloc
, "R_390_PLT32", FALSE
, 0,0xffffffff, TRUE
),
74 HOWTO(R_390_COPY
, 0, 4, 64, FALSE
, 0, complain_overflow_bitfield
,
75 bfd_elf_generic_reloc
, "R_390_COPY", FALSE
, 0,MINUS_ONE
, FALSE
),
76 HOWTO(R_390_GLOB_DAT
, 0, 4, 64, FALSE
, 0, complain_overflow_bitfield
,
77 bfd_elf_generic_reloc
, "R_390_GLOB_DAT", FALSE
, 0,MINUS_ONE
, FALSE
),
78 HOWTO(R_390_JMP_SLOT
, 0, 4, 64, FALSE
, 0, complain_overflow_bitfield
,
79 bfd_elf_generic_reloc
, "R_390_JMP_SLOT", FALSE
, 0,MINUS_ONE
, FALSE
),
80 HOWTO(R_390_RELATIVE
, 0, 4, 64, TRUE
, 0, complain_overflow_bitfield
,
81 bfd_elf_generic_reloc
, "R_390_RELATIVE", FALSE
, 0,MINUS_ONE
, FALSE
),
82 HOWTO(R_390_GOTOFF32
, 0, 2, 32, FALSE
, 0, complain_overflow_bitfield
,
83 bfd_elf_generic_reloc
, "R_390_GOTOFF32", FALSE
, 0,MINUS_ONE
, FALSE
),
84 HOWTO(R_390_GOTPC
, 0, 4, 64, TRUE
, 0, complain_overflow_bitfield
,
85 bfd_elf_generic_reloc
, "R_390_GOTPC", FALSE
, 0,MINUS_ONE
, TRUE
),
86 HOWTO(R_390_GOT16
, 0, 1, 16, FALSE
, 0, complain_overflow_bitfield
,
87 bfd_elf_generic_reloc
, "R_390_GOT16", FALSE
, 0,0x0000ffff, FALSE
),
88 HOWTO(R_390_PC16
, 0, 1, 16, TRUE
, 0, complain_overflow_bitfield
,
89 bfd_elf_generic_reloc
, "R_390_PC16", FALSE
, 0,0x0000ffff, TRUE
),
90 HOWTO(R_390_PC16DBL
, 1, 1, 16, TRUE
, 0, complain_overflow_bitfield
,
91 bfd_elf_generic_reloc
, "R_390_PC16DBL", FALSE
, 0,0x0000ffff, TRUE
),
92 HOWTO(R_390_PLT16DBL
, 1, 1, 16, TRUE
, 0, complain_overflow_bitfield
,
93 bfd_elf_generic_reloc
, "R_390_PLT16DBL", FALSE
, 0,0x0000ffff, TRUE
),
94 HOWTO(R_390_PC32DBL
, 1, 2, 32, TRUE
, 0, complain_overflow_bitfield
,
95 bfd_elf_generic_reloc
, "R_390_PC32DBL", FALSE
, 0,0xffffffff, TRUE
),
96 HOWTO(R_390_PLT32DBL
, 1, 2, 32, TRUE
, 0, complain_overflow_bitfield
,
97 bfd_elf_generic_reloc
, "R_390_PLT32DBL", FALSE
, 0,0xffffffff, TRUE
),
98 HOWTO(R_390_GOTPCDBL
, 1, 2, 32, TRUE
, 0, complain_overflow_bitfield
,
99 bfd_elf_generic_reloc
, "R_390_GOTPCDBL", FALSE
, 0,MINUS_ONE
, TRUE
),
100 HOWTO(R_390_64
, 0, 4, 64, FALSE
, 0, complain_overflow_bitfield
,
101 bfd_elf_generic_reloc
, "R_390_64", FALSE
, 0,MINUS_ONE
, FALSE
),
102 HOWTO(R_390_PC64
, 0, 4, 64, TRUE
, 0, complain_overflow_bitfield
,
103 bfd_elf_generic_reloc
, "R_390_PC64", FALSE
, 0,MINUS_ONE
, TRUE
),
104 HOWTO(R_390_GOT64
, 0, 4, 64, FALSE
, 0, complain_overflow_bitfield
,
105 bfd_elf_generic_reloc
, "R_390_GOT64", FALSE
, 0,MINUS_ONE
, FALSE
),
106 HOWTO(R_390_PLT64
, 0, 4, 64, TRUE
, 0, complain_overflow_bitfield
,
107 bfd_elf_generic_reloc
, "R_390_PLT64", FALSE
, 0,MINUS_ONE
, TRUE
),
108 HOWTO(R_390_GOTENT
, 1, 2, 32, TRUE
, 0, complain_overflow_bitfield
,
109 bfd_elf_generic_reloc
, "R_390_GOTENT", FALSE
, 0,MINUS_ONE
, TRUE
),
110 HOWTO(R_390_GOTOFF16
, 0, 1, 16, FALSE
, 0, complain_overflow_bitfield
,
111 bfd_elf_generic_reloc
, "R_390_GOTOFF16", FALSE
, 0,0x0000ffff, FALSE
),
112 HOWTO(R_390_GOTOFF64
, 0, 4, 64, FALSE
, 0, complain_overflow_bitfield
,
113 bfd_elf_generic_reloc
, "R_390_GOTOFF64", FALSE
, 0,MINUS_ONE
, FALSE
),
114 HOWTO(R_390_GOTPLT12
, 0, 1, 12, FALSE
, 0, complain_overflow_dont
,
115 bfd_elf_generic_reloc
, "R_390_GOTPLT12", FALSE
, 0,0x00000fff, FALSE
),
116 HOWTO(R_390_GOTPLT16
, 0, 1, 16, FALSE
, 0, complain_overflow_bitfield
,
117 bfd_elf_generic_reloc
, "R_390_GOTPLT16", FALSE
, 0,0x0000ffff, FALSE
),
118 HOWTO(R_390_GOTPLT32
, 0, 2, 32, FALSE
, 0, complain_overflow_bitfield
,
119 bfd_elf_generic_reloc
, "R_390_GOTPLT32", FALSE
, 0,0xffffffff, FALSE
),
120 HOWTO(R_390_GOTPLT64
, 0, 4, 64, FALSE
, 0, complain_overflow_bitfield
,
121 bfd_elf_generic_reloc
, "R_390_GOTPLT64", FALSE
, 0,MINUS_ONE
, FALSE
),
122 HOWTO(R_390_GOTPLTENT
, 1, 2, 32, TRUE
, 0, complain_overflow_bitfield
,
123 bfd_elf_generic_reloc
, "R_390_GOTPLTENT",FALSE
, 0,MINUS_ONE
, TRUE
),
124 HOWTO(R_390_PLTOFF16
, 0, 1, 16, FALSE
, 0, complain_overflow_bitfield
,
125 bfd_elf_generic_reloc
, "R_390_PLTOFF16", FALSE
, 0,0x0000ffff, FALSE
),
126 HOWTO(R_390_PLTOFF32
, 0, 2, 32, FALSE
, 0, complain_overflow_bitfield
,
127 bfd_elf_generic_reloc
, "R_390_PLTOFF32", FALSE
, 0,0xffffffff, FALSE
),
128 HOWTO(R_390_PLTOFF64
, 0, 4, 64, FALSE
, 0, complain_overflow_bitfield
,
129 bfd_elf_generic_reloc
, "R_390_PLTOFF64", FALSE
, 0,MINUS_ONE
, FALSE
),
130 HOWTO(R_390_TLS_LOAD
, 0, 0, 0, FALSE
, 0, complain_overflow_dont
,
131 s390_tls_reloc
, "R_390_TLS_LOAD", FALSE
, 0, 0, FALSE
),
132 HOWTO(R_390_TLS_GDCALL
, 0, 0, 0, FALSE
, 0, complain_overflow_dont
,
133 s390_tls_reloc
, "R_390_TLS_GDCALL", FALSE
, 0, 0, FALSE
),
134 HOWTO(R_390_TLS_LDCALL
, 0, 0, 0, FALSE
, 0, complain_overflow_dont
,
135 s390_tls_reloc
, "R_390_TLS_LDCALL", FALSE
, 0, 0, FALSE
),
136 EMPTY_HOWTO (R_390_TLS_GD32
), /* Empty entry for R_390_TLS_GD32. */
137 HOWTO(R_390_TLS_GD64
, 0, 4, 64, FALSE
, 0, complain_overflow_bitfield
,
138 bfd_elf_generic_reloc
, "R_390_TLS_GD64", FALSE
, 0, MINUS_ONE
, FALSE
),
139 HOWTO(R_390_TLS_GOTIE12
, 0, 1, 12, FALSE
, 0, complain_overflow_dont
,
140 bfd_elf_generic_reloc
, "R_390_TLS_GOTIE12", FALSE
, 0, 0x00000fff, FALSE
),
141 EMPTY_HOWTO (R_390_TLS_GOTIE32
), /* Empty entry for R_390_TLS_GOTIE32. */
142 HOWTO(R_390_TLS_GOTIE64
, 0, 4, 64, FALSE
, 0, complain_overflow_bitfield
,
143 bfd_elf_generic_reloc
, "R_390_TLS_GOTIE64", FALSE
, 0, MINUS_ONE
, FALSE
),
144 EMPTY_HOWTO (R_390_TLS_LDM32
), /* Empty entry for R_390_TLS_LDM32. */
145 HOWTO(R_390_TLS_LDM64
, 0, 4, 64, FALSE
, 0, complain_overflow_bitfield
,
146 bfd_elf_generic_reloc
, "R_390_TLS_LDM64", FALSE
, 0, MINUS_ONE
, FALSE
),
147 EMPTY_HOWTO (R_390_TLS_IE32
), /* Empty entry for R_390_TLS_IE32. */
148 HOWTO(R_390_TLS_IE64
, 0, 4, 64, FALSE
, 0, complain_overflow_bitfield
,
149 bfd_elf_generic_reloc
, "R_390_TLS_IE64", FALSE
, 0, MINUS_ONE
, FALSE
),
150 HOWTO(R_390_TLS_IEENT
, 1, 2, 32, TRUE
, 0, complain_overflow_bitfield
,
151 bfd_elf_generic_reloc
, "R_390_TLS_IEENT", FALSE
, 0, MINUS_ONE
, TRUE
),
152 EMPTY_HOWTO (R_390_TLS_LE32
), /* Empty entry for R_390_TLS_LE32. */
153 HOWTO(R_390_TLS_LE64
, 0, 2, 32, FALSE
, 0, complain_overflow_bitfield
,
154 bfd_elf_generic_reloc
, "R_390_TLS_LE64", FALSE
, 0, MINUS_ONE
, FALSE
),
155 EMPTY_HOWTO (R_390_TLS_LDO32
), /* Empty entry for R_390_TLS_LDO32. */
156 HOWTO(R_390_TLS_LDO64
, 0, 4, 64, FALSE
, 0, complain_overflow_bitfield
,
157 bfd_elf_generic_reloc
, "R_390_TLS_LDO64", FALSE
, 0, MINUS_ONE
, FALSE
),
158 HOWTO(R_390_TLS_DTPMOD
, 0, 4, 64, FALSE
, 0, complain_overflow_bitfield
,
159 bfd_elf_generic_reloc
, "R_390_TLS_DTPMOD", FALSE
, 0, MINUS_ONE
, FALSE
),
160 HOWTO(R_390_TLS_DTPOFF
, 0, 4, 64, FALSE
, 0, complain_overflow_bitfield
,
161 bfd_elf_generic_reloc
, "R_390_TLS_DTPOFF", FALSE
, 0, MINUS_ONE
, FALSE
),
162 HOWTO(R_390_TLS_TPOFF
, 0, 4, 64, FALSE
, 0, complain_overflow_bitfield
,
163 bfd_elf_generic_reloc
, "R_390_TLS_TPOFF", FALSE
, 0, MINUS_ONE
, FALSE
),
164 HOWTO(R_390_20
, 0, 2, 20, FALSE
, 8, complain_overflow_dont
,
165 s390_elf_ldisp_reloc
, "R_390_20", FALSE
, 0,0x0fffff00, FALSE
),
166 HOWTO(R_390_GOT20
, 0, 2, 20, FALSE
, 8, complain_overflow_dont
,
167 s390_elf_ldisp_reloc
, "R_390_GOT20", FALSE
, 0,0x0fffff00, FALSE
),
168 HOWTO(R_390_GOTPLT20
, 0, 2, 20, FALSE
, 8, complain_overflow_dont
,
169 s390_elf_ldisp_reloc
, "R_390_GOTPLT20", FALSE
, 0,0x0fffff00, FALSE
),
170 HOWTO(R_390_TLS_GOTIE20
, 0, 2, 20, FALSE
, 8, complain_overflow_dont
,
171 s390_elf_ldisp_reloc
, "R_390_TLS_GOTIE20", FALSE
, 0,0x0fffff00, FALSE
),
172 HOWTO(R_390_IRELATIVE
, 0, 4, 64, FALSE
, 0, complain_overflow_bitfield
,
173 bfd_elf_generic_reloc
, "R_390_IRELATIVE", FALSE
, 0, MINUS_ONE
, FALSE
),
174 HOWTO(R_390_PC12DBL
, 1, 1, 12, TRUE
, 0, complain_overflow_bitfield
,
175 bfd_elf_generic_reloc
, "R_390_PC12DBL", FALSE
, 0,0x00000fff, TRUE
),
176 HOWTO(R_390_PLT12DBL
, 1, 1, 12, TRUE
, 0, complain_overflow_bitfield
,
177 bfd_elf_generic_reloc
, "R_390_PLT12DBL", FALSE
, 0,0x00000fff, TRUE
),
178 HOWTO(R_390_PC24DBL
, 1, 2, 24, TRUE
, 0, complain_overflow_bitfield
,
179 bfd_elf_generic_reloc
, "R_390_PC24DBL", FALSE
, 0,0x00ffffff, TRUE
),
180 HOWTO(R_390_PLT24DBL
, 1, 2, 24, TRUE
, 0, complain_overflow_bitfield
,
181 bfd_elf_generic_reloc
, "R_390_PLT24DBL", FALSE
, 0,0x00ffffff, TRUE
),
184 /* GNU extension to record C++ vtable hierarchy. */
185 static reloc_howto_type elf64_s390_vtinherit_howto
=
186 HOWTO (R_390_GNU_VTINHERIT
, 0,4,0,FALSE
,0,complain_overflow_dont
, NULL
, "R_390_GNU_VTINHERIT", FALSE
,0, 0, FALSE
);
187 static reloc_howto_type elf64_s390_vtentry_howto
=
188 HOWTO (R_390_GNU_VTENTRY
, 0,4,0,FALSE
,0,complain_overflow_dont
, _bfd_elf_rel_vtable_reloc_fn
,"R_390_GNU_VTENTRY", FALSE
,0,0, FALSE
);
190 static reloc_howto_type
*
191 elf_s390_reloc_type_lookup (bfd
*abfd ATTRIBUTE_UNUSED
,
192 bfd_reloc_code_real_type code
)
197 return &elf_howto_table
[(int) R_390_NONE
];
199 return &elf_howto_table
[(int) R_390_8
];
200 case BFD_RELOC_390_12
:
201 return &elf_howto_table
[(int) R_390_12
];
203 return &elf_howto_table
[(int) R_390_16
];
205 return &elf_howto_table
[(int) R_390_32
];
207 return &elf_howto_table
[(int) R_390_32
];
208 case BFD_RELOC_32_PCREL
:
209 return &elf_howto_table
[(int) R_390_PC32
];
210 case BFD_RELOC_390_GOT12
:
211 return &elf_howto_table
[(int) R_390_GOT12
];
212 case BFD_RELOC_32_GOT_PCREL
:
213 return &elf_howto_table
[(int) R_390_GOT32
];
214 case BFD_RELOC_390_PLT32
:
215 return &elf_howto_table
[(int) R_390_PLT32
];
216 case BFD_RELOC_390_COPY
:
217 return &elf_howto_table
[(int) R_390_COPY
];
218 case BFD_RELOC_390_GLOB_DAT
:
219 return &elf_howto_table
[(int) R_390_GLOB_DAT
];
220 case BFD_RELOC_390_JMP_SLOT
:
221 return &elf_howto_table
[(int) R_390_JMP_SLOT
];
222 case BFD_RELOC_390_RELATIVE
:
223 return &elf_howto_table
[(int) R_390_RELATIVE
];
224 case BFD_RELOC_32_GOTOFF
:
225 return &elf_howto_table
[(int) R_390_GOTOFF32
];
226 case BFD_RELOC_390_GOTPC
:
227 return &elf_howto_table
[(int) R_390_GOTPC
];
228 case BFD_RELOC_390_GOT16
:
229 return &elf_howto_table
[(int) R_390_GOT16
];
230 case BFD_RELOC_16_PCREL
:
231 return &elf_howto_table
[(int) R_390_PC16
];
232 case BFD_RELOC_390_PC12DBL
:
233 return &elf_howto_table
[(int) R_390_PC12DBL
];
234 case BFD_RELOC_390_PLT12DBL
:
235 return &elf_howto_table
[(int) R_390_PLT12DBL
];
236 case BFD_RELOC_390_PC16DBL
:
237 return &elf_howto_table
[(int) R_390_PC16DBL
];
238 case BFD_RELOC_390_PLT16DBL
:
239 return &elf_howto_table
[(int) R_390_PLT16DBL
];
240 case BFD_RELOC_390_PC24DBL
:
241 return &elf_howto_table
[(int) R_390_PC24DBL
];
242 case BFD_RELOC_390_PLT24DBL
:
243 return &elf_howto_table
[(int) R_390_PLT24DBL
];
244 case BFD_RELOC_390_PC32DBL
:
245 return &elf_howto_table
[(int) R_390_PC32DBL
];
246 case BFD_RELOC_390_PLT32DBL
:
247 return &elf_howto_table
[(int) R_390_PLT32DBL
];
248 case BFD_RELOC_390_GOTPCDBL
:
249 return &elf_howto_table
[(int) R_390_GOTPCDBL
];
251 return &elf_howto_table
[(int) R_390_64
];
252 case BFD_RELOC_64_PCREL
:
253 return &elf_howto_table
[(int) R_390_PC64
];
254 case BFD_RELOC_390_GOT64
:
255 return &elf_howto_table
[(int) R_390_GOT64
];
256 case BFD_RELOC_390_PLT64
:
257 return &elf_howto_table
[(int) R_390_PLT64
];
258 case BFD_RELOC_390_GOTENT
:
259 return &elf_howto_table
[(int) R_390_GOTENT
];
260 case BFD_RELOC_16_GOTOFF
:
261 return &elf_howto_table
[(int) R_390_GOTOFF16
];
262 case BFD_RELOC_390_GOTOFF64
:
263 return &elf_howto_table
[(int) R_390_GOTOFF64
];
264 case BFD_RELOC_390_GOTPLT12
:
265 return &elf_howto_table
[(int) R_390_GOTPLT12
];
266 case BFD_RELOC_390_GOTPLT16
:
267 return &elf_howto_table
[(int) R_390_GOTPLT16
];
268 case BFD_RELOC_390_GOTPLT32
:
269 return &elf_howto_table
[(int) R_390_GOTPLT32
];
270 case BFD_RELOC_390_GOTPLT64
:
271 return &elf_howto_table
[(int) R_390_GOTPLT64
];
272 case BFD_RELOC_390_GOTPLTENT
:
273 return &elf_howto_table
[(int) R_390_GOTPLTENT
];
274 case BFD_RELOC_390_PLTOFF16
:
275 return &elf_howto_table
[(int) R_390_PLTOFF16
];
276 case BFD_RELOC_390_PLTOFF32
:
277 return &elf_howto_table
[(int) R_390_PLTOFF32
];
278 case BFD_RELOC_390_PLTOFF64
:
279 return &elf_howto_table
[(int) R_390_PLTOFF64
];
280 case BFD_RELOC_390_TLS_LOAD
:
281 return &elf_howto_table
[(int) R_390_TLS_LOAD
];
282 case BFD_RELOC_390_TLS_GDCALL
:
283 return &elf_howto_table
[(int) R_390_TLS_GDCALL
];
284 case BFD_RELOC_390_TLS_LDCALL
:
285 return &elf_howto_table
[(int) R_390_TLS_LDCALL
];
286 case BFD_RELOC_390_TLS_GD64
:
287 return &elf_howto_table
[(int) R_390_TLS_GD64
];
288 case BFD_RELOC_390_TLS_GOTIE12
:
289 return &elf_howto_table
[(int) R_390_TLS_GOTIE12
];
290 case BFD_RELOC_390_TLS_GOTIE64
:
291 return &elf_howto_table
[(int) R_390_TLS_GOTIE64
];
292 case BFD_RELOC_390_TLS_LDM64
:
293 return &elf_howto_table
[(int) R_390_TLS_LDM64
];
294 case BFD_RELOC_390_TLS_IE64
:
295 return &elf_howto_table
[(int) R_390_TLS_IE64
];
296 case BFD_RELOC_390_TLS_IEENT
:
297 return &elf_howto_table
[(int) R_390_TLS_IEENT
];
298 case BFD_RELOC_390_TLS_LE64
:
299 return &elf_howto_table
[(int) R_390_TLS_LE64
];
300 case BFD_RELOC_390_TLS_LDO64
:
301 return &elf_howto_table
[(int) R_390_TLS_LDO64
];
302 case BFD_RELOC_390_TLS_DTPMOD
:
303 return &elf_howto_table
[(int) R_390_TLS_DTPMOD
];
304 case BFD_RELOC_390_TLS_DTPOFF
:
305 return &elf_howto_table
[(int) R_390_TLS_DTPOFF
];
306 case BFD_RELOC_390_TLS_TPOFF
:
307 return &elf_howto_table
[(int) R_390_TLS_TPOFF
];
308 case BFD_RELOC_390_20
:
309 return &elf_howto_table
[(int) R_390_20
];
310 case BFD_RELOC_390_GOT20
:
311 return &elf_howto_table
[(int) R_390_GOT20
];
312 case BFD_RELOC_390_GOTPLT20
:
313 return &elf_howto_table
[(int) R_390_GOTPLT20
];
314 case BFD_RELOC_390_TLS_GOTIE20
:
315 return &elf_howto_table
[(int) R_390_TLS_GOTIE20
];
316 case BFD_RELOC_390_IRELATIVE
:
317 return &elf_howto_table
[(int) R_390_IRELATIVE
];
318 case BFD_RELOC_VTABLE_INHERIT
:
319 return &elf64_s390_vtinherit_howto
;
320 case BFD_RELOC_VTABLE_ENTRY
:
321 return &elf64_s390_vtentry_howto
;
328 static reloc_howto_type
*
329 elf_s390_reloc_name_lookup (bfd
*abfd ATTRIBUTE_UNUSED
,
335 i
< sizeof (elf_howto_table
) / sizeof (elf_howto_table
[0]);
337 if (elf_howto_table
[i
].name
!= NULL
338 && strcasecmp (elf_howto_table
[i
].name
, r_name
) == 0)
339 return &elf_howto_table
[i
];
341 if (strcasecmp (elf64_s390_vtinherit_howto
.name
, r_name
) == 0)
342 return &elf64_s390_vtinherit_howto
;
343 if (strcasecmp (elf64_s390_vtentry_howto
.name
, r_name
) == 0)
344 return &elf64_s390_vtentry_howto
;
349 /* We need to use ELF64_R_TYPE so we have our own copy of this function,
350 and elf64-s390.c has its own copy. */
353 elf_s390_info_to_howto (bfd
*abfd ATTRIBUTE_UNUSED
,
355 Elf_Internal_Rela
*dst
)
357 unsigned int r_type
= ELF64_R_TYPE(dst
->r_info
);
360 case R_390_GNU_VTINHERIT
:
361 cache_ptr
->howto
= &elf64_s390_vtinherit_howto
;
364 case R_390_GNU_VTENTRY
:
365 cache_ptr
->howto
= &elf64_s390_vtentry_howto
;
369 if (r_type
>= sizeof (elf_howto_table
) / sizeof (elf_howto_table
[0]))
371 (*_bfd_error_handler
) (_("%B: invalid relocation type %d"),
375 cache_ptr
->howto
= &elf_howto_table
[r_type
];
379 /* A relocation function which doesn't do anything. */
380 static bfd_reloc_status_type
381 s390_tls_reloc (bfd
*abfd ATTRIBUTE_UNUSED
,
382 arelent
*reloc_entry
,
383 asymbol
*symbol ATTRIBUTE_UNUSED
,
384 void * data ATTRIBUTE_UNUSED
,
385 asection
*input_section
,
387 char **error_message ATTRIBUTE_UNUSED
)
390 reloc_entry
->address
+= input_section
->output_offset
;
394 /* Handle the large displacement relocs. */
395 static bfd_reloc_status_type
396 s390_elf_ldisp_reloc (bfd
*abfd
,
397 arelent
*reloc_entry
,
400 asection
*input_section
,
402 char **error_message ATTRIBUTE_UNUSED
)
404 reloc_howto_type
*howto
= reloc_entry
->howto
;
408 if (output_bfd
!= (bfd
*) NULL
409 && (symbol
->flags
& BSF_SECTION_SYM
) == 0
410 && (! howto
->partial_inplace
411 || reloc_entry
->addend
== 0))
413 reloc_entry
->address
+= input_section
->output_offset
;
416 if (output_bfd
!= NULL
)
417 return bfd_reloc_continue
;
419 if (reloc_entry
->address
> bfd_get_section_limit (abfd
, input_section
))
420 return bfd_reloc_outofrange
;
422 relocation
= (symbol
->value
423 + symbol
->section
->output_section
->vma
424 + symbol
->section
->output_offset
);
425 relocation
+= reloc_entry
->addend
;
426 if (howto
->pc_relative
)
428 relocation
-= (input_section
->output_section
->vma
429 + input_section
->output_offset
);
430 relocation
-= reloc_entry
->address
;
433 insn
= bfd_get_32 (abfd
, (bfd_byte
*) data
+ reloc_entry
->address
);
434 insn
|= (relocation
& 0xfff) << 16 | (relocation
& 0xff000) >> 4;
435 bfd_put_32 (abfd
, insn
, (bfd_byte
*) data
+ reloc_entry
->address
);
437 if ((bfd_signed_vma
) relocation
< - 0x80000
438 || (bfd_signed_vma
) relocation
> 0x7ffff)
439 return bfd_reloc_overflow
;
445 elf_s390_is_local_label_name (bfd
*abfd
, const char *name
)
447 if (name
[0] == '.' && (name
[1] == 'X' || name
[1] == 'L'))
450 return _bfd_elf_is_local_label_name (abfd
, name
);
453 /* Functions for the 390 ELF linker. */
455 /* The name of the dynamic interpreter. This is put in the .interp
458 #define ELF_DYNAMIC_INTERPRETER "/lib/ld64.so.1"
460 /* If ELIMINATE_COPY_RELOCS is non-zero, the linker will try to avoid
461 copying dynamic variables from a shared lib into an app's dynbss
462 section, and instead use a dynamic relocation to point into the
464 #define ELIMINATE_COPY_RELOCS 1
466 /* The size in bytes of the first entry in the procedure linkage table. */
467 #define PLT_FIRST_ENTRY_SIZE 32
468 /* The size in bytes of an entry in the procedure linkage table. */
469 #define PLT_ENTRY_SIZE 32
471 #define GOT_ENTRY_SIZE 8
473 #define RELA_ENTRY_SIZE sizeof (Elf64_External_Rela)
475 /* The first three entries in a procedure linkage table are reserved,
476 and the initial contents are unimportant (we zero them out).
477 Subsequent entries look like this. See the SVR4 ABI 386
478 supplement to see how this works. */
480 /* For the s390, simple addr offset can only be 0 - 4096.
481 To use the full 16777216 TB address space, several instructions
482 are needed to load an address in a register and execute
483 a branch( or just saving the address)
485 Furthermore, only r 0 and 1 are free to use!!! */
487 /* The first 3 words in the GOT are then reserved.
488 Word 0 is the address of the dynamic table.
489 Word 1 is a pointer to a structure describing the object
490 Word 2 is used to point to the loader entry address.
492 The code for PLT entries looks like this:
494 The GOT holds the address in the PLT to be executed.
495 The loader then gets:
496 48(15) = Pointer to the structure describing the object.
497 56(15) = Offset in symbol table
498 The loader must then find the module where the function is
499 and insert the address in the GOT.
501 PLT1: LARL 1,<fn>@GOTENT # 6 bytes Load address of GOT entry in r1
502 LG 1,0(1) # 6 bytes Load address from GOT in r1
503 BCR 15,1 # 2 bytes Jump to address
504 RET1: BASR 1,0 # 2 bytes Return from GOT 1st time
505 LGF 1,12(1) # 6 bytes Load offset in symbl table in r1
506 BRCL 15,-x # 6 bytes Jump to start of PLT
507 .long ? # 4 bytes offset into .rela.plt
509 Total = 32 bytes per PLT entry
510 Fixup at offset 2: relative address to GOT entry
511 Fixup at offset 22: relative branch to PLT0
512 Fixup at offset 28: 32 bit offset into .rela.plt
514 A 32 bit offset into the symbol table is enough. It allows for
515 .rela.plt sections up to a size of 2 gigabyte. A single dynamic
516 object (the main program, any shared library) is limited to 4GB in
517 size. Having a .rela.plt of 2GB would already make the .plt
518 section bigger than 8GB. */
520 static const bfd_byte elf_s390x_plt_entry
[PLT_ENTRY_SIZE
] =
522 0xc0, 0x10, 0x00, 0x00, 0x00, 0x00, /* larl %r1,. */
523 0xe3, 0x10, 0x10, 0x00, 0x00, 0x04, /* lg %r1,0(%r1) */
524 0x07, 0xf1, /* br %r1 */
525 0x0d, 0x10, /* basr %r1,%r0 */
526 0xe3, 0x10, 0x10, 0x0c, 0x00, 0x14, /* lgf %r1,12(%r1) */
527 0xc0, 0xf4, 0x00, 0x00, 0x00, 0x00, /* jg first plt */
528 0x00, 0x00, 0x00, 0x00 /* .long 0x00000000 */
531 /* The first PLT entry pushes the offset into the symbol table
532 from R1 onto the stack at 56(15) and the loader object info
533 at 48(15), loads the loader address in R1 and jumps to it. */
535 /* The first entry in the PLT:
538 STG 1,56(15) # r1 contains the offset into the symbol table
539 LARL 1,_GLOBAL_OFFSET_TABLE # load address of global offset table
540 MVC 48(8,15),8(1) # move loader ino (object struct address) to stack
541 LG 1,16(1) # get entry address of loader
542 BCR 15,1 # jump to loader
544 Fixup at offset 8: relative address to start of GOT. */
546 static const bfd_byte elf_s390x_first_plt_entry
[PLT_FIRST_ENTRY_SIZE
] =
548 0xe3, 0x10, 0xf0, 0x38, 0x00, 0x24, /* stg %r1,56(%r15) */
549 0xc0, 0x10, 0x00, 0x00, 0x00, 0x00, /* larl %r1,. */
550 0xd2, 0x07, 0xf0, 0x30, 0x10, 0x08, /* mvc 48(8,%r15),8(%r1) */
551 0xe3, 0x10, 0x10, 0x10, 0x00, 0x04, /* lg %r1,16(%r1) */
552 0x07, 0xf1, /* br %r1 */
553 0x07, 0x00, /* nopr %r0 */
554 0x07, 0x00, /* nopr %r0 */
555 0x07, 0x00 /* nopr %r0 */
559 /* s390 ELF linker hash entry. */
561 struct elf_s390_link_hash_entry
563 struct elf_link_hash_entry elf
;
565 /* Track dynamic relocs copied for this symbol. */
566 struct elf_dyn_relocs
*dyn_relocs
;
568 /* Number of GOTPLT references for a function. */
569 bfd_signed_vma gotplt_refcount
;
571 #define GOT_UNKNOWN 0
575 #define GOT_TLS_IE_NLT 3
576 unsigned char tls_type
;
578 /* For pointer equality reasons we might need to change the symbol
579 type from STT_GNU_IFUNC to STT_FUNC together with its value and
580 section entry. So after alloc_dynrelocs only these values should
581 be used. In order to check whether a symbol is IFUNC use
582 s390_is_ifunc_symbol_p. */
583 bfd_vma ifunc_resolver_address
;
584 asection
*ifunc_resolver_section
;
587 #define elf_s390_hash_entry(ent) \
588 ((struct elf_s390_link_hash_entry *)(ent))
590 /* This structure represents an entry in the local PLT list needed for
591 local IFUNC symbols. */
594 /* The section of the local symbol.
595 Set in relocate_section and used in finish_dynamic_sections. */
600 bfd_signed_vma refcount
;
605 /* NOTE: Keep this structure in sync with
606 the one declared in elf32-s390.c. */
607 struct elf_s390_obj_tdata
609 struct elf_obj_tdata root
;
611 /* A local PLT is needed for ifunc symbols. */
612 struct plt_entry
*local_plt
;
614 /* TLS type for each local got entry. */
615 char *local_got_tls_type
;
618 #define elf_s390_tdata(abfd) \
619 ((struct elf_s390_obj_tdata *) (abfd)->tdata.any)
621 #define elf_s390_local_plt(abfd) \
622 (elf_s390_tdata (abfd)->local_plt)
624 #define elf_s390_local_got_tls_type(abfd) \
625 (elf_s390_tdata (abfd)->local_got_tls_type)
627 #define is_s390_elf(bfd) \
628 (bfd_get_flavour (bfd) == bfd_target_elf_flavour \
629 && elf_tdata (bfd) != NULL \
630 && elf_object_id (bfd) == S390_ELF_DATA)
633 elf_s390_mkobject (bfd
*abfd
)
635 return bfd_elf_allocate_object (abfd
, sizeof (struct elf_s390_obj_tdata
),
640 elf_s390_object_p (bfd
*abfd
)
642 /* Set the right machine number for an s390 elf32 file. */
643 return bfd_default_set_arch_mach (abfd
, bfd_arch_s390
, bfd_mach_s390_64
);
646 /* s390 ELF linker hash table. */
648 struct elf_s390_link_hash_table
650 struct elf_link_hash_table elf
;
652 /* Short-cuts to get to dynamic linker sections. */
658 bfd_signed_vma refcount
;
662 /* Small local sym cache. */
663 struct sym_cache sym_cache
;
666 /* Get the s390 ELF linker hash table from a link_info structure. */
668 #define elf_s390_hash_table(p) \
669 (elf_hash_table_id ((struct elf_link_hash_table *) ((p)->hash)) \
670 == S390_ELF_DATA ? ((struct elf_s390_link_hash_table *) ((p)->hash)) : NULL)
673 #include "elf-s390-common.c"
675 /* Create an entry in an s390 ELF linker hash table. */
677 static struct bfd_hash_entry
*
678 link_hash_newfunc (struct bfd_hash_entry
*entry
,
679 struct bfd_hash_table
*table
,
682 /* Allocate the structure if it has not already been allocated by a
686 entry
= bfd_hash_allocate (table
,
687 sizeof (struct elf_s390_link_hash_entry
));
692 /* Call the allocation method of the superclass. */
693 entry
= _bfd_elf_link_hash_newfunc (entry
, table
, string
);
696 struct elf_s390_link_hash_entry
*eh
;
698 eh
= (struct elf_s390_link_hash_entry
*) entry
;
699 eh
->dyn_relocs
= NULL
;
700 eh
->gotplt_refcount
= 0;
701 eh
->tls_type
= GOT_UNKNOWN
;
702 eh
->ifunc_resolver_address
= 0;
703 eh
->ifunc_resolver_section
= NULL
;
709 /* Create an s390 ELF linker hash table. */
711 static struct bfd_link_hash_table
*
712 elf_s390_link_hash_table_create (bfd
*abfd
)
714 struct elf_s390_link_hash_table
*ret
;
715 bfd_size_type amt
= sizeof (struct elf_s390_link_hash_table
);
717 ret
= (struct elf_s390_link_hash_table
*) bfd_zmalloc (amt
);
721 if (!_bfd_elf_link_hash_table_init (&ret
->elf
, abfd
, link_hash_newfunc
,
722 sizeof (struct elf_s390_link_hash_entry
),
729 return &ret
->elf
.root
;
732 /* Create .got, .gotplt, and .rela.got sections in DYNOBJ, and set up
733 shortcuts to them in our hash table. */
736 create_got_section (bfd
*dynobj
,
737 struct bfd_link_info
*info
)
739 struct elf_s390_link_hash_table
*htab
;
741 if (! _bfd_elf_create_got_section (dynobj
, info
))
744 htab
= elf_s390_hash_table (info
);
748 htab
->elf
.sgot
= bfd_get_linker_section (dynobj
, ".got");
749 htab
->elf
.sgotplt
= bfd_get_linker_section (dynobj
, ".got.plt");
750 htab
->elf
.srelgot
= bfd_get_linker_section (dynobj
, ".rela.got");
751 if (!htab
->elf
.sgot
|| !htab
->elf
.sgotplt
|| !htab
->elf
.srelgot
)
756 /* Create .plt, .rela.plt, .got, .got.plt, .rela.got, .dynbss, and
757 .rela.bss sections in DYNOBJ, and set up shortcuts to them in our
761 elf_s390_create_dynamic_sections (bfd
*dynobj
,
762 struct bfd_link_info
*info
)
764 struct elf_s390_link_hash_table
*htab
;
766 htab
= elf_s390_hash_table (info
);
770 if (!htab
->elf
.sgot
&& !create_got_section (dynobj
, info
))
773 if (!_bfd_elf_create_dynamic_sections (dynobj
, info
))
776 htab
->elf
.splt
= bfd_get_linker_section (dynobj
, ".plt");
777 htab
->elf
.srelplt
= bfd_get_linker_section (dynobj
, ".rela.plt");
778 htab
->sdynbss
= bfd_get_linker_section (dynobj
, ".dynbss");
779 if (!bfd_link_pic (info
))
780 htab
->srelbss
= bfd_get_linker_section (dynobj
, ".rela.bss");
782 if (!htab
->elf
.splt
|| !htab
->elf
.srelplt
|| !htab
->sdynbss
783 || (!bfd_link_pic (info
) && !htab
->srelbss
))
789 /* Copy the extra info we tack onto an elf_link_hash_entry. */
792 elf_s390_copy_indirect_symbol (struct bfd_link_info
*info
,
793 struct elf_link_hash_entry
*dir
,
794 struct elf_link_hash_entry
*ind
)
796 struct elf_s390_link_hash_entry
*edir
, *eind
;
798 edir
= (struct elf_s390_link_hash_entry
*) dir
;
799 eind
= (struct elf_s390_link_hash_entry
*) ind
;
801 if (eind
->dyn_relocs
!= NULL
)
803 if (edir
->dyn_relocs
!= NULL
)
805 struct elf_dyn_relocs
**pp
;
806 struct elf_dyn_relocs
*p
;
808 /* Add reloc counts against the indirect sym to the direct sym
809 list. Merge any entries against the same section. */
810 for (pp
= &eind
->dyn_relocs
; (p
= *pp
) != NULL
; )
812 struct elf_dyn_relocs
*q
;
814 for (q
= edir
->dyn_relocs
; q
!= NULL
; q
= q
->next
)
815 if (q
->sec
== p
->sec
)
817 q
->pc_count
+= p
->pc_count
;
818 q
->count
+= p
->count
;
825 *pp
= edir
->dyn_relocs
;
828 edir
->dyn_relocs
= eind
->dyn_relocs
;
829 eind
->dyn_relocs
= NULL
;
832 if (ind
->root
.type
== bfd_link_hash_indirect
833 && dir
->got
.refcount
<= 0)
835 edir
->tls_type
= eind
->tls_type
;
836 eind
->tls_type
= GOT_UNKNOWN
;
839 if (ELIMINATE_COPY_RELOCS
840 && ind
->root
.type
!= bfd_link_hash_indirect
841 && dir
->dynamic_adjusted
)
843 /* If called to transfer flags for a weakdef during processing
844 of elf_adjust_dynamic_symbol, don't copy non_got_ref.
845 We clear it ourselves for ELIMINATE_COPY_RELOCS. */
846 dir
->ref_dynamic
|= ind
->ref_dynamic
;
847 dir
->ref_regular
|= ind
->ref_regular
;
848 dir
->ref_regular_nonweak
|= ind
->ref_regular_nonweak
;
849 dir
->needs_plt
|= ind
->needs_plt
;
852 _bfd_elf_link_hash_copy_indirect (info
, dir
, ind
);
856 elf_s390_tls_transition (struct bfd_link_info
*info
,
860 if (bfd_link_pic (info
))
868 return R_390_TLS_LE64
;
869 return R_390_TLS_IE64
;
870 case R_390_TLS_GOTIE64
:
872 return R_390_TLS_LE64
;
873 return R_390_TLS_GOTIE64
;
874 case R_390_TLS_LDM64
:
875 return R_390_TLS_LE64
;
881 /* Look through the relocs for a section during the first phase, and
882 allocate space in the global offset table or procedure linkage
886 elf_s390_check_relocs (bfd
*abfd
,
887 struct bfd_link_info
*info
,
889 const Elf_Internal_Rela
*relocs
)
891 struct elf_s390_link_hash_table
*htab
;
892 Elf_Internal_Shdr
*symtab_hdr
;
893 struct elf_link_hash_entry
**sym_hashes
;
894 const Elf_Internal_Rela
*rel
;
895 const Elf_Internal_Rela
*rel_end
;
897 bfd_signed_vma
*local_got_refcounts
;
898 int tls_type
, old_tls_type
;
900 if (bfd_link_relocatable (info
))
903 BFD_ASSERT (is_s390_elf (abfd
));
905 htab
= elf_s390_hash_table (info
);
909 symtab_hdr
= &elf_symtab_hdr (abfd
);
910 sym_hashes
= elf_sym_hashes (abfd
);
911 local_got_refcounts
= elf_local_got_refcounts (abfd
);
915 rel_end
= relocs
+ sec
->reloc_count
;
916 for (rel
= relocs
; rel
< rel_end
; rel
++)
919 unsigned long r_symndx
;
920 struct elf_link_hash_entry
*h
;
921 Elf_Internal_Sym
*isym
;
923 r_symndx
= ELF64_R_SYM (rel
->r_info
);
925 if (r_symndx
>= NUM_SHDR_ENTRIES (symtab_hdr
))
927 (*_bfd_error_handler
) (_("%B: bad symbol index: %d"),
933 if (r_symndx
< symtab_hdr
->sh_info
)
935 /* A local symbol. */
936 isym
= bfd_sym_from_r_symndx (&htab
->sym_cache
,
941 if (ELF_ST_TYPE (isym
->st_info
) == STT_GNU_IFUNC
)
943 struct plt_entry
*plt
;
945 if (htab
->elf
.dynobj
== NULL
)
946 htab
->elf
.dynobj
= abfd
;
948 if (!s390_elf_create_ifunc_sections (htab
->elf
.dynobj
, info
))
951 if (local_got_refcounts
== NULL
)
953 if (!elf_s390_allocate_local_syminfo (abfd
, symtab_hdr
))
955 local_got_refcounts
= elf_local_got_refcounts (abfd
);
957 plt
= elf_s390_local_plt (abfd
);
958 plt
[r_symndx
].plt
.refcount
++;
964 h
= sym_hashes
[r_symndx
- symtab_hdr
->sh_info
];
965 while (h
->root
.type
== bfd_link_hash_indirect
966 || h
->root
.type
== bfd_link_hash_warning
)
967 h
= (struct elf_link_hash_entry
*) h
->root
.u
.i
.link
;
969 /* PR15323, ref flags aren't set for references in the same
971 h
->root
.non_ir_ref
= 1;
974 /* Create got section and local_got_refcounts array if they
976 r_type
= elf_s390_tls_transition (info
,
977 ELF64_R_TYPE (rel
->r_info
),
992 case R_390_GOTPLTENT
:
994 case R_390_TLS_GOTIE12
:
995 case R_390_TLS_GOTIE20
:
996 case R_390_TLS_GOTIE64
:
997 case R_390_TLS_IEENT
:
999 case R_390_TLS_LDM64
:
1001 && local_got_refcounts
== NULL
)
1003 if (!elf_s390_allocate_local_syminfo (abfd
, symtab_hdr
))
1005 local_got_refcounts
= elf_local_got_refcounts (abfd
);
1009 case R_390_GOTOFF16
:
1010 case R_390_GOTOFF32
:
1011 case R_390_GOTOFF64
:
1013 case R_390_GOTPCDBL
:
1014 if (htab
->elf
.sgot
== NULL
)
1016 if (htab
->elf
.dynobj
== NULL
)
1017 htab
->elf
.dynobj
= abfd
;
1018 if (!create_got_section (htab
->elf
.dynobj
, info
))
1025 if (htab
->elf
.dynobj
== NULL
)
1026 htab
->elf
.dynobj
= abfd
;
1027 if (!s390_elf_create_ifunc_sections (htab
->elf
.dynobj
, info
))
1030 /* Make sure an IFUNC symbol defined in a non-shared object
1031 always gets a PLT slot. */
1032 if (s390_is_ifunc_symbol_p (h
) && h
->def_regular
)
1034 /* The symbol is called by the dynamic loader in order
1035 to resolve the relocation. So it is in fact also
1045 case R_390_GOTPCDBL
:
1046 /* These relocs do not need a GOT slot. They just load the
1047 GOT pointer itself or address something else relative to
1048 the GOT. Since the GOT pointer has been set up above we
1051 case R_390_GOTOFF16
:
1052 case R_390_GOTOFF32
:
1053 case R_390_GOTOFF64
:
1054 if (h
== NULL
|| !s390_is_ifunc_symbol_p (h
) || !h
->def_regular
)
1057 case R_390_PLT12DBL
:
1058 case R_390_PLT16DBL
:
1059 case R_390_PLT24DBL
:
1061 case R_390_PLT32DBL
:
1063 case R_390_PLTOFF16
:
1064 case R_390_PLTOFF32
:
1065 case R_390_PLTOFF64
:
1066 /* This symbol requires a procedure linkage table entry. We
1067 actually build the entry in adjust_dynamic_symbol,
1068 because this might be a case of linking PIC code which is
1069 never referenced by a dynamic object, in which case we
1070 don't need to generate a procedure linkage table entry
1073 /* If this is a local symbol, we resolve it directly without
1074 creating a procedure linkage table entry. */
1078 h
->plt
.refcount
+= 1;
1082 case R_390_GOTPLT12
:
1083 case R_390_GOTPLT16
:
1084 case R_390_GOTPLT20
:
1085 case R_390_GOTPLT32
:
1086 case R_390_GOTPLT64
:
1087 case R_390_GOTPLTENT
:
1088 /* This symbol requires either a procedure linkage table entry
1089 or an entry in the local got. We actually build the entry
1090 in adjust_dynamic_symbol because whether this is really a
1091 global reference can change and with it the fact if we have
1092 to create a plt entry or a local got entry. To be able to
1093 make a once global symbol a local one we have to keep track
1094 of the number of gotplt references that exist for this
1098 ((struct elf_s390_link_hash_entry
*) h
)->gotplt_refcount
++;
1100 h
->plt
.refcount
+= 1;
1103 local_got_refcounts
[r_symndx
] += 1;
1106 case R_390_TLS_LDM64
:
1107 htab
->tls_ldm_got
.refcount
+= 1;
1110 case R_390_TLS_IE64
:
1111 case R_390_TLS_GOTIE12
:
1112 case R_390_TLS_GOTIE20
:
1113 case R_390_TLS_GOTIE64
:
1114 case R_390_TLS_IEENT
:
1115 if (bfd_link_pic (info
))
1116 info
->flags
|= DF_STATIC_TLS
;
1125 case R_390_TLS_GD64
:
1126 /* This symbol requires a global offset table entry. */
1135 tls_type
= GOT_NORMAL
;
1137 case R_390_TLS_GD64
:
1138 tls_type
= GOT_TLS_GD
;
1140 case R_390_TLS_IE64
:
1141 case R_390_TLS_GOTIE64
:
1142 tls_type
= GOT_TLS_IE
;
1144 case R_390_TLS_GOTIE12
:
1145 case R_390_TLS_GOTIE20
:
1146 case R_390_TLS_IEENT
:
1147 tls_type
= GOT_TLS_IE_NLT
;
1153 h
->got
.refcount
+= 1;
1154 old_tls_type
= elf_s390_hash_entry(h
)->tls_type
;
1158 local_got_refcounts
[r_symndx
] += 1;
1159 old_tls_type
= elf_s390_local_got_tls_type (abfd
) [r_symndx
];
1161 /* If a TLS symbol is accessed using IE at least once,
1162 there is no point to use dynamic model for it. */
1163 if (old_tls_type
!= tls_type
&& old_tls_type
!= GOT_UNKNOWN
)
1165 if (old_tls_type
== GOT_NORMAL
|| tls_type
== GOT_NORMAL
)
1167 (*_bfd_error_handler
)
1168 (_("%B: `%s' accessed both as normal and thread local symbol"),
1169 abfd
, h
->root
.root
.string
);
1172 if (old_tls_type
> tls_type
)
1173 tls_type
= old_tls_type
;
1176 if (old_tls_type
!= tls_type
)
1179 elf_s390_hash_entry (h
)->tls_type
= tls_type
;
1181 elf_s390_local_got_tls_type (abfd
) [r_symndx
] = tls_type
;
1184 if (r_type
!= R_390_TLS_IE64
)
1188 case R_390_TLS_LE64
:
1189 /* For static linking and executables this reloc will be
1190 calculated at linktime otherwise a TLS_TPOFF runtime
1191 reloc will be generated. */
1192 if (r_type
== R_390_TLS_LE64
&& bfd_link_pie (info
))
1195 if (!bfd_link_pic (info
))
1197 info
->flags
|= DF_STATIC_TLS
;
1211 if (h
!= NULL
&& bfd_link_executable (info
))
1213 /* If this reloc is in a read-only section, we might
1214 need a copy reloc. We can't check reliably at this
1215 stage whether the section is read-only, as input
1216 sections have not yet been mapped to output sections.
1217 Tentatively set the flag for now, and correct in
1218 adjust_dynamic_symbol. */
1221 if (!bfd_link_pic (info
))
1223 /* We may need a .plt entry if the function this reloc
1224 refers to is in a shared lib. */
1225 h
->plt
.refcount
+= 1;
1229 /* If we are creating a shared library, and this is a reloc
1230 against a global symbol, or a non PC relative reloc
1231 against a local symbol, then we need to copy the reloc
1232 into the shared library. However, if we are linking with
1233 -Bsymbolic, we do not need to copy a reloc against a
1234 global symbol which is defined in an object we are
1235 including in the link (i.e., DEF_REGULAR is set). At
1236 this point we have not seen all the input files, so it is
1237 possible that DEF_REGULAR is not set now but will be set
1238 later (it is never cleared). In case of a weak definition,
1239 DEF_REGULAR may be cleared later by a strong definition in
1240 a shared library. We account for that possibility below by
1241 storing information in the relocs_copied field of the hash
1242 table entry. A similar situation occurs when creating
1243 shared libraries and symbol visibility changes render the
1246 If on the other hand, we are creating an executable, we
1247 may need to keep relocations for symbols satisfied by a
1248 dynamic library if we manage to avoid copy relocs for the
1250 if ((bfd_link_pic (info
)
1251 && (sec
->flags
& SEC_ALLOC
) != 0
1252 && ((ELF64_R_TYPE (rel
->r_info
) != R_390_PC16
1253 && ELF64_R_TYPE (rel
->r_info
) != R_390_PC12DBL
1254 && ELF64_R_TYPE (rel
->r_info
) != R_390_PC16DBL
1255 && ELF64_R_TYPE (rel
->r_info
) != R_390_PC24DBL
1256 && ELF64_R_TYPE (rel
->r_info
) != R_390_PC32
1257 && ELF64_R_TYPE (rel
->r_info
) != R_390_PC32DBL
1258 && ELF64_R_TYPE (rel
->r_info
) != R_390_PC64
)
1260 && (! SYMBOLIC_BIND (info
, h
)
1261 || h
->root
.type
== bfd_link_hash_defweak
1262 || !h
->def_regular
))))
1263 || (ELIMINATE_COPY_RELOCS
1264 && !bfd_link_pic (info
)
1265 && (sec
->flags
& SEC_ALLOC
) != 0
1267 && (h
->root
.type
== bfd_link_hash_defweak
1268 || !h
->def_regular
)))
1270 struct elf_dyn_relocs
*p
;
1271 struct elf_dyn_relocs
**head
;
1273 /* We must copy these reloc types into the output file.
1274 Create a reloc section in dynobj and make room for
1278 if (htab
->elf
.dynobj
== NULL
)
1279 htab
->elf
.dynobj
= abfd
;
1281 sreloc
= _bfd_elf_make_dynamic_reloc_section
1282 (sec
, htab
->elf
.dynobj
, 3, abfd
, /*rela?*/ TRUE
);
1288 /* If this is a global symbol, we count the number of
1289 relocations we need for this symbol. */
1292 head
= &((struct elf_s390_link_hash_entry
*) h
)->dyn_relocs
;
1296 /* Track dynamic relocs needed for local syms too.
1297 We really need local syms available to do this
1302 isym
= bfd_sym_from_r_symndx (&htab
->sym_cache
,
1307 s
= bfd_section_from_elf_index (abfd
, isym
->st_shndx
);
1311 vpp
= &elf_section_data (s
)->local_dynrel
;
1312 head
= (struct elf_dyn_relocs
**) vpp
;
1316 if (p
== NULL
|| p
->sec
!= sec
)
1318 bfd_size_type amt
= sizeof *p
;
1319 p
= ((struct elf_dyn_relocs
*)
1320 bfd_alloc (htab
->elf
.dynobj
, amt
));
1331 if (ELF64_R_TYPE (rel
->r_info
) == R_390_PC16
1332 || ELF64_R_TYPE (rel
->r_info
) == R_390_PC12DBL
1333 || ELF64_R_TYPE (rel
->r_info
) == R_390_PC16DBL
1334 || ELF64_R_TYPE (rel
->r_info
) == R_390_PC16DBL
1335 || ELF64_R_TYPE (rel
->r_info
) == R_390_PC32
1336 || ELF64_R_TYPE (rel
->r_info
) == R_390_PC32DBL
1337 || ELF64_R_TYPE (rel
->r_info
) == R_390_PC64
)
1342 /* This relocation describes the C++ object vtable hierarchy.
1343 Reconstruct it for later use during GC. */
1344 case R_390_GNU_VTINHERIT
:
1345 if (!bfd_elf_gc_record_vtinherit (abfd
, sec
, h
, rel
->r_offset
))
1349 /* This relocation describes which C++ vtable entries are actually
1350 used. Record for later use during GC. */
1351 case R_390_GNU_VTENTRY
:
1352 BFD_ASSERT (h
!= NULL
);
1354 && !bfd_elf_gc_record_vtentry (abfd
, sec
, h
, rel
->r_addend
))
1366 /* Return the section that should be marked against GC for a given
1370 elf_s390_gc_mark_hook (asection
*sec
,
1371 struct bfd_link_info
*info
,
1372 Elf_Internal_Rela
*rel
,
1373 struct elf_link_hash_entry
*h
,
1374 Elf_Internal_Sym
*sym
)
1377 switch (ELF64_R_TYPE (rel
->r_info
))
1379 case R_390_GNU_VTINHERIT
:
1380 case R_390_GNU_VTENTRY
:
1384 return _bfd_elf_gc_mark_hook (sec
, info
, rel
, h
, sym
);
1387 /* Update the got entry reference counts for the section being removed. */
1390 elf_s390_gc_sweep_hook (bfd
*abfd
,
1391 struct bfd_link_info
*info
,
1393 const Elf_Internal_Rela
*relocs
)
1395 struct elf_s390_link_hash_table
*htab
;
1396 Elf_Internal_Shdr
*symtab_hdr
;
1397 struct elf_link_hash_entry
**sym_hashes
;
1398 bfd_signed_vma
*local_got_refcounts
;
1399 const Elf_Internal_Rela
*rel
, *relend
;
1401 if (bfd_link_relocatable (info
))
1404 htab
= elf_s390_hash_table (info
);
1408 elf_section_data (sec
)->local_dynrel
= NULL
;
1410 symtab_hdr
= &elf_symtab_hdr (abfd
);
1411 sym_hashes
= elf_sym_hashes (abfd
);
1412 local_got_refcounts
= elf_local_got_refcounts (abfd
);
1414 relend
= relocs
+ sec
->reloc_count
;
1415 for (rel
= relocs
; rel
< relend
; rel
++)
1417 unsigned long r_symndx
;
1418 unsigned int r_type
;
1419 struct elf_link_hash_entry
*h
= NULL
;
1421 r_symndx
= ELF64_R_SYM (rel
->r_info
);
1422 if (r_symndx
>= symtab_hdr
->sh_info
)
1424 struct elf_s390_link_hash_entry
*eh
;
1425 struct elf_dyn_relocs
**pp
;
1426 struct elf_dyn_relocs
*p
;
1428 h
= sym_hashes
[r_symndx
- symtab_hdr
->sh_info
];
1429 while (h
->root
.type
== bfd_link_hash_indirect
1430 || h
->root
.type
== bfd_link_hash_warning
)
1431 h
= (struct elf_link_hash_entry
*) h
->root
.u
.i
.link
;
1432 eh
= (struct elf_s390_link_hash_entry
*) h
;
1434 for (pp
= &eh
->dyn_relocs
; (p
= *pp
) != NULL
; pp
= &p
->next
)
1437 /* Everything must go for SEC. */
1444 Elf_Internal_Sym
*isym
;
1446 /* A local symbol. */
1447 isym
= bfd_sym_from_r_symndx (&htab
->sym_cache
,
1452 if (ELF_ST_TYPE (isym
->st_info
) == STT_GNU_IFUNC
)
1454 struct plt_entry
*plt
= elf_s390_local_plt (abfd
);
1455 if (plt
[r_symndx
].plt
.refcount
> 0)
1456 plt
[r_symndx
].plt
.refcount
--;
1460 r_type
= ELF64_R_TYPE (rel
->r_info
);
1461 r_type
= elf_s390_tls_transition (info
, r_type
, h
!= NULL
);
1464 case R_390_TLS_LDM64
:
1465 if (htab
->tls_ldm_got
.refcount
> 0)
1466 htab
->tls_ldm_got
.refcount
-= 1;
1468 case R_390_GOTOFF16
:
1469 case R_390_GOTOFF32
:
1470 case R_390_GOTOFF64
:
1471 if (h
!= NULL
&& s390_is_ifunc_symbol_p (h
) && h
->def_regular
)
1478 case R_390_GOTPCDBL
:
1481 case R_390_TLS_GD64
:
1482 case R_390_TLS_IE64
:
1483 case R_390_TLS_GOTIE12
:
1484 case R_390_TLS_GOTIE20
:
1485 case R_390_TLS_GOTIE64
:
1486 case R_390_TLS_IEENT
:
1495 if (h
->got
.refcount
> 0)
1496 h
->got
.refcount
-= 1;
1498 else if (local_got_refcounts
!= NULL
)
1500 if (local_got_refcounts
[r_symndx
] > 0)
1501 local_got_refcounts
[r_symndx
] -= 1;
1518 if (bfd_link_pic (info
))
1522 case R_390_PLT12DBL
:
1523 case R_390_PLT16DBL
:
1524 case R_390_PLT24DBL
:
1526 case R_390_PLT32DBL
:
1528 case R_390_PLTOFF16
:
1529 case R_390_PLTOFF32
:
1530 case R_390_PLTOFF64
:
1533 if (h
->plt
.refcount
> 0)
1534 h
->plt
.refcount
-= 1;
1538 case R_390_GOTPLT12
:
1539 case R_390_GOTPLT16
:
1540 case R_390_GOTPLT20
:
1541 case R_390_GOTPLT32
:
1542 case R_390_GOTPLT64
:
1543 case R_390_GOTPLTENT
:
1546 if (h
->plt
.refcount
> 0)
1548 ((struct elf_s390_link_hash_entry
*) h
)->gotplt_refcount
--;
1549 h
->plt
.refcount
-= 1;
1552 else if (local_got_refcounts
!= NULL
)
1554 if (local_got_refcounts
[r_symndx
] > 0)
1555 local_got_refcounts
[r_symndx
] -= 1;
1567 /* Make sure we emit a GOT entry if the symbol was supposed to have a PLT
1568 entry but we found we will not create any. Called when we find we will
1569 not have any PLT for this symbol, by for example
1570 elf_s390_adjust_dynamic_symbol when we're doing a proper dynamic link,
1571 or elf_s390_size_dynamic_sections if no dynamic sections will be
1572 created (we're only linking static objects). */
1575 elf_s390_adjust_gotplt (struct elf_s390_link_hash_entry
*h
)
1577 if (h
->elf
.root
.type
== bfd_link_hash_warning
)
1578 h
= (struct elf_s390_link_hash_entry
*) h
->elf
.root
.u
.i
.link
;
1580 if (h
->gotplt_refcount
<= 0)
1583 /* We simply add the number of gotplt references to the number
1584 * of got references for this symbol. */
1585 h
->elf
.got
.refcount
+= h
->gotplt_refcount
;
1586 h
->gotplt_refcount
= -1;
1589 /* Adjust a symbol defined by a dynamic object and referenced by a
1590 regular object. The current definition is in some section of the
1591 dynamic object, but we're not including those sections. We have to
1592 change the definition to something the rest of the link can
1596 elf_s390_adjust_dynamic_symbol (struct bfd_link_info
*info
,
1597 struct elf_link_hash_entry
*h
)
1599 struct elf_s390_link_hash_table
*htab
;
1602 /* STT_GNU_IFUNC symbol must go through PLT. */
1603 if (s390_is_ifunc_symbol_p (h
))
1605 /* All local STT_GNU_IFUNC references must be treated as local
1606 calls via local PLT. */
1607 if (h
->ref_regular
&& SYMBOL_CALLS_LOCAL (info
, h
))
1609 bfd_size_type pc_count
= 0, count
= 0;
1610 struct elf_dyn_relocs
**pp
;
1611 struct elf_s390_link_hash_entry
*eh
;
1612 struct elf_dyn_relocs
*p
;
1614 eh
= (struct elf_s390_link_hash_entry
*) h
;
1615 for (pp
= &eh
->dyn_relocs
; (p
= *pp
) != NULL
; )
1617 pc_count
+= p
->pc_count
;
1618 p
->count
-= p
->pc_count
;
1627 if (pc_count
|| count
)
1631 if (h
->plt
.refcount
<= 0)
1632 h
->plt
.refcount
= 1;
1634 h
->plt
.refcount
+= 1;
1638 if (h
->plt
.refcount
<= 0)
1640 h
->plt
.offset
= (bfd_vma
) -1;
1646 /* If this is a function, put it in the procedure linkage table. We
1647 will fill in the contents of the procedure linkage table later
1648 (although we could actually do it here). */
1649 if (h
->type
== STT_FUNC
1652 if (h
->plt
.refcount
<= 0
1653 || SYMBOL_CALLS_LOCAL (info
, h
)
1654 || (ELF_ST_VISIBILITY (h
->other
) != STV_DEFAULT
1655 && h
->root
.type
== bfd_link_hash_undefweak
))
1657 /* This case can occur if we saw a PLT32 reloc in an input
1658 file, but the symbol was never referred to by a dynamic
1659 object, or if all references were garbage collected. In
1660 such a case, we don't actually need to build a procedure
1661 linkage table, and we can just do a PC32 reloc instead. */
1662 h
->plt
.offset
= (bfd_vma
) -1;
1664 elf_s390_adjust_gotplt((struct elf_s390_link_hash_entry
*) h
);
1670 /* It's possible that we incorrectly decided a .plt reloc was
1671 needed for an R_390_PC32 reloc to a non-function sym in
1672 check_relocs. We can't decide accurately between function and
1673 non-function syms in check-relocs; Objects loaded later in
1674 the link may change h->type. So fix it now. */
1675 h
->plt
.offset
= (bfd_vma
) -1;
1677 /* If this is a weak symbol, and there is a real definition, the
1678 processor independent code will have arranged for us to see the
1679 real definition first, and we can just use the same value. */
1680 if (h
->u
.weakdef
!= NULL
)
1682 BFD_ASSERT (h
->u
.weakdef
->root
.type
== bfd_link_hash_defined
1683 || h
->u
.weakdef
->root
.type
== bfd_link_hash_defweak
);
1684 h
->root
.u
.def
.section
= h
->u
.weakdef
->root
.u
.def
.section
;
1685 h
->root
.u
.def
.value
= h
->u
.weakdef
->root
.u
.def
.value
;
1686 if (ELIMINATE_COPY_RELOCS
|| info
->nocopyreloc
)
1687 h
->non_got_ref
= h
->u
.weakdef
->non_got_ref
;
1691 /* This is a reference to a symbol defined by a dynamic object which
1692 is not a function. */
1694 /* If we are creating a shared library, we must presume that the
1695 only references to the symbol are via the global offset table.
1696 For such cases we need not do anything here; the relocations will
1697 be handled correctly by relocate_section. */
1698 if (bfd_link_pic (info
))
1701 /* If there are no references to this symbol that do not use the
1702 GOT, we don't need to generate a copy reloc. */
1703 if (!h
->non_got_ref
)
1706 /* If -z nocopyreloc was given, we won't generate them either. */
1707 if (info
->nocopyreloc
)
1713 if (ELIMINATE_COPY_RELOCS
)
1715 struct elf_s390_link_hash_entry
* eh
;
1716 struct elf_dyn_relocs
*p
;
1718 eh
= (struct elf_s390_link_hash_entry
*) h
;
1719 for (p
= eh
->dyn_relocs
; p
!= NULL
; p
= p
->next
)
1721 s
= p
->sec
->output_section
;
1722 if (s
!= NULL
&& (s
->flags
& SEC_READONLY
) != 0)
1726 /* If we didn't find any dynamic relocs in read-only sections, then
1727 we'll be keeping the dynamic relocs and avoiding the copy reloc. */
1735 /* We must allocate the symbol in our .dynbss section, which will
1736 become part of the .bss section of the executable. There will be
1737 an entry for this symbol in the .dynsym section. The dynamic
1738 object will contain position independent code, so all references
1739 from the dynamic object to this symbol will go through the global
1740 offset table. The dynamic linker will use the .dynsym entry to
1741 determine the address it must put in the global offset table, so
1742 both the dynamic object and the regular object will refer to the
1743 same memory location for the variable. */
1745 htab
= elf_s390_hash_table (info
);
1749 /* We must generate a R_390_COPY reloc to tell the dynamic linker to
1750 copy the initial value out of the dynamic object and into the
1751 runtime process image. */
1752 if ((h
->root
.u
.def
.section
->flags
& SEC_ALLOC
) != 0 && h
->size
!= 0)
1754 htab
->srelbss
->size
+= sizeof (Elf64_External_Rela
);
1760 return _bfd_elf_adjust_dynamic_copy (info
, h
, s
);
1763 /* Allocate space in .plt, .got and associated reloc sections for
1767 allocate_dynrelocs (struct elf_link_hash_entry
*h
,
1770 struct bfd_link_info
*info
;
1771 struct elf_s390_link_hash_table
*htab
;
1772 struct elf_s390_link_hash_entry
*eh
= (struct elf_s390_link_hash_entry
*)h
;
1773 struct elf_dyn_relocs
*p
;
1775 if (h
->root
.type
== bfd_link_hash_indirect
)
1778 info
= (struct bfd_link_info
*) inf
;
1779 htab
= elf_s390_hash_table (info
);
1783 /* Since STT_GNU_IFUNC symbol must go through PLT, we handle it
1784 here if it is defined and referenced in a non-shared object. */
1785 if (s390_is_ifunc_symbol_p (h
) && h
->def_regular
)
1786 return s390_elf_allocate_ifunc_dyn_relocs (info
, h
);
1787 else if (htab
->elf
.dynamic_sections_created
1788 && h
->plt
.refcount
> 0)
1790 /* Make sure this symbol is output as a dynamic symbol.
1791 Undefined weak syms won't yet be marked as dynamic. */
1792 if (h
->dynindx
== -1
1793 && !h
->forced_local
)
1795 if (! bfd_elf_link_record_dynamic_symbol (info
, h
))
1799 if (bfd_link_pic (info
)
1800 || WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, 0, h
))
1802 asection
*s
= htab
->elf
.splt
;
1804 /* If this is the first .plt entry, make room for the special
1807 s
->size
+= PLT_FIRST_ENTRY_SIZE
;
1809 h
->plt
.offset
= s
->size
;
1811 /* If this symbol is not defined in a regular file, and we are
1812 not generating a shared library, then set the symbol to this
1813 location in the .plt. This is required to make function
1814 pointers compare as equal between the normal executable and
1815 the shared library. */
1816 if (! bfd_link_pic (info
)
1819 h
->root
.u
.def
.section
= s
;
1820 h
->root
.u
.def
.value
= h
->plt
.offset
;
1823 /* Make room for this entry. */
1824 s
->size
+= PLT_ENTRY_SIZE
;
1826 /* We also need to make an entry in the .got.plt section, which
1827 will be placed in the .got section by the linker script. */
1828 htab
->elf
.sgotplt
->size
+= GOT_ENTRY_SIZE
;
1830 /* We also need to make an entry in the .rela.plt section. */
1831 htab
->elf
.srelplt
->size
+= sizeof (Elf64_External_Rela
);
1835 h
->plt
.offset
= (bfd_vma
) -1;
1837 elf_s390_adjust_gotplt((struct elf_s390_link_hash_entry
*) h
);
1842 h
->plt
.offset
= (bfd_vma
) -1;
1844 elf_s390_adjust_gotplt((struct elf_s390_link_hash_entry
*) h
);
1847 /* If R_390_TLS_{IE64,GOTIE64,GOTIE12,IEENT} symbol is now local to
1848 the binary, we can optimize a bit. IE64 and GOTIE64 get converted
1849 to R_390_TLS_LE64 requiring no TLS entry. For GOTIE12 and IEENT
1850 we can save the dynamic TLS relocation. */
1851 if (h
->got
.refcount
> 0
1852 && !bfd_link_pic (info
)
1854 && elf_s390_hash_entry(h
)->tls_type
>= GOT_TLS_IE
)
1856 if (elf_s390_hash_entry(h
)->tls_type
== GOT_TLS_IE_NLT
)
1857 /* For the GOTIE access without a literal pool entry the offset has
1858 to be stored somewhere. The immediate value in the instruction
1859 is not bit enough so the value is stored in the got. */
1861 h
->got
.offset
= htab
->elf
.sgot
->size
;
1862 htab
->elf
.sgot
->size
+= GOT_ENTRY_SIZE
;
1865 h
->got
.offset
= (bfd_vma
) -1;
1867 else if (h
->got
.refcount
> 0)
1871 int tls_type
= elf_s390_hash_entry(h
)->tls_type
;
1873 /* Make sure this symbol is output as a dynamic symbol.
1874 Undefined weak syms won't yet be marked as dynamic. */
1875 if (h
->dynindx
== -1
1876 && !h
->forced_local
)
1878 if (! bfd_elf_link_record_dynamic_symbol (info
, h
))
1883 h
->got
.offset
= s
->size
;
1884 s
->size
+= GOT_ENTRY_SIZE
;
1885 /* R_390_TLS_GD64 needs 2 consecutive GOT slots. */
1886 if (tls_type
== GOT_TLS_GD
)
1887 s
->size
+= GOT_ENTRY_SIZE
;
1888 dyn
= htab
->elf
.dynamic_sections_created
;
1889 /* R_390_TLS_IE64 needs one dynamic relocation,
1890 R_390_TLS_GD64 needs one if local symbol and two if global. */
1891 if ((tls_type
== GOT_TLS_GD
&& h
->dynindx
== -1)
1892 || tls_type
>= GOT_TLS_IE
)
1893 htab
->elf
.srelgot
->size
+= sizeof (Elf64_External_Rela
);
1894 else if (tls_type
== GOT_TLS_GD
)
1895 htab
->elf
.srelgot
->size
+= 2 * sizeof (Elf64_External_Rela
);
1896 else if ((ELF_ST_VISIBILITY (h
->other
) == STV_DEFAULT
1897 || h
->root
.type
!= bfd_link_hash_undefweak
)
1898 && (bfd_link_pic (info
)
1899 || WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn
, 0, h
)))
1900 htab
->elf
.srelgot
->size
+= sizeof (Elf64_External_Rela
);
1903 h
->got
.offset
= (bfd_vma
) -1;
1905 if (eh
->dyn_relocs
== NULL
)
1908 /* In the shared -Bsymbolic case, discard space allocated for
1909 dynamic pc-relative relocs against symbols which turn out to be
1910 defined in regular objects. For the normal shared case, discard
1911 space for pc-relative relocs that have become local due to symbol
1912 visibility changes. */
1914 if (bfd_link_pic (info
))
1916 if (SYMBOL_CALLS_LOCAL (info
, h
))
1918 struct elf_dyn_relocs
**pp
;
1920 for (pp
= &eh
->dyn_relocs
; (p
= *pp
) != NULL
; )
1922 p
->count
-= p
->pc_count
;
1931 /* Also discard relocs on undefined weak syms with non-default
1933 if (eh
->dyn_relocs
!= NULL
1934 && h
->root
.type
== bfd_link_hash_undefweak
)
1936 if (ELF_ST_VISIBILITY (h
->other
) != STV_DEFAULT
)
1937 eh
->dyn_relocs
= NULL
;
1939 /* Make sure undefined weak symbols are output as a dynamic
1941 else if (h
->dynindx
== -1
1942 && !h
->forced_local
)
1944 if (! bfd_elf_link_record_dynamic_symbol (info
, h
))
1949 else if (ELIMINATE_COPY_RELOCS
)
1951 /* For the non-shared case, discard space for relocs against
1952 symbols which turn out to need copy relocs or are not
1958 || (htab
->elf
.dynamic_sections_created
1959 && (h
->root
.type
== bfd_link_hash_undefweak
1960 || h
->root
.type
== bfd_link_hash_undefined
))))
1962 /* Make sure this symbol is output as a dynamic symbol.
1963 Undefined weak syms won't yet be marked as dynamic. */
1964 if (h
->dynindx
== -1
1965 && !h
->forced_local
)
1967 if (! bfd_elf_link_record_dynamic_symbol (info
, h
))
1971 /* If that succeeded, we know we'll be keeping all the
1973 if (h
->dynindx
!= -1)
1977 eh
->dyn_relocs
= NULL
;
1982 /* Finally, allocate space. */
1983 for (p
= eh
->dyn_relocs
; p
!= NULL
; p
= p
->next
)
1985 asection
*sreloc
= elf_section_data (p
->sec
)->sreloc
;
1986 sreloc
->size
+= p
->count
* sizeof (Elf64_External_Rela
);
1992 /* Find any dynamic relocs that apply to read-only sections. */
1995 readonly_dynrelocs (struct elf_link_hash_entry
*h
, void * inf
)
1997 struct elf_s390_link_hash_entry
*eh
;
1998 struct elf_dyn_relocs
*p
;
2000 eh
= (struct elf_s390_link_hash_entry
*) h
;
2001 for (p
= eh
->dyn_relocs
; p
!= NULL
; p
= p
->next
)
2003 asection
*s
= p
->sec
->output_section
;
2005 if (s
!= NULL
&& (s
->flags
& SEC_READONLY
) != 0)
2007 struct bfd_link_info
*info
= (struct bfd_link_info
*) inf
;
2009 info
->flags
|= DF_TEXTREL
;
2011 /* Not an error, just cut short the traversal. */
2018 /* Set the sizes of the dynamic sections. */
2021 elf_s390_size_dynamic_sections (bfd
*output_bfd ATTRIBUTE_UNUSED
,
2022 struct bfd_link_info
*info
)
2024 struct elf_s390_link_hash_table
*htab
;
2030 htab
= elf_s390_hash_table (info
);
2034 dynobj
= htab
->elf
.dynobj
;
2038 if (htab
->elf
.dynamic_sections_created
)
2040 /* Set the contents of the .interp section to the interpreter. */
2041 if (bfd_link_executable (info
) && !info
->nointerp
)
2043 s
= bfd_get_linker_section (dynobj
, ".interp");
2046 s
->size
= sizeof ELF_DYNAMIC_INTERPRETER
;
2047 s
->contents
= (unsigned char *) ELF_DYNAMIC_INTERPRETER
;
2051 /* Set up .got offsets for local syms, and space for local dynamic
2053 for (ibfd
= info
->input_bfds
; ibfd
!= NULL
; ibfd
= ibfd
->link
.next
)
2055 bfd_signed_vma
*local_got
;
2056 bfd_signed_vma
*end_local_got
;
2057 char *local_tls_type
;
2058 bfd_size_type locsymcount
;
2059 Elf_Internal_Shdr
*symtab_hdr
;
2061 struct plt_entry
*local_plt
;
2064 if (! is_s390_elf (ibfd
))
2067 for (s
= ibfd
->sections
; s
!= NULL
; s
= s
->next
)
2069 struct elf_dyn_relocs
*p
;
2071 for (p
= elf_section_data (s
)->local_dynrel
; p
!= NULL
; p
= p
->next
)
2073 if (!bfd_is_abs_section (p
->sec
)
2074 && bfd_is_abs_section (p
->sec
->output_section
))
2076 /* Input section has been discarded, either because
2077 it is a copy of a linkonce section or due to
2078 linker script /DISCARD/, so we'll be discarding
2081 else if (p
->count
!= 0)
2083 srela
= elf_section_data (p
->sec
)->sreloc
;
2084 srela
->size
+= p
->count
* sizeof (Elf64_External_Rela
);
2085 if ((p
->sec
->output_section
->flags
& SEC_READONLY
) != 0)
2086 info
->flags
|= DF_TEXTREL
;
2091 local_got
= elf_local_got_refcounts (ibfd
);
2095 symtab_hdr
= &elf_symtab_hdr (ibfd
);
2096 locsymcount
= symtab_hdr
->sh_info
;
2097 end_local_got
= local_got
+ locsymcount
;
2098 local_tls_type
= elf_s390_local_got_tls_type (ibfd
);
2100 srela
= htab
->elf
.srelgot
;
2101 for (; local_got
< end_local_got
; ++local_got
, ++local_tls_type
)
2105 *local_got
= s
->size
;
2106 s
->size
+= GOT_ENTRY_SIZE
;
2107 if (*local_tls_type
== GOT_TLS_GD
)
2108 s
->size
+= GOT_ENTRY_SIZE
;
2109 if (bfd_link_pic (info
))
2110 srela
->size
+= sizeof (Elf64_External_Rela
);
2113 *local_got
= (bfd_vma
) -1;
2116 local_plt
= elf_s390_local_plt (ibfd
);
2117 for (i
= 0; i
< symtab_hdr
->sh_info
; i
++)
2119 if (local_plt
[i
].plt
.refcount
> 0)
2121 local_plt
[i
].plt
.offset
= htab
->elf
.iplt
->size
;
2122 htab
->elf
.iplt
->size
+= PLT_ENTRY_SIZE
;
2123 htab
->elf
.igotplt
->size
+= GOT_ENTRY_SIZE
;
2124 htab
->elf
.irelplt
->size
+= sizeof (Elf64_External_Rela
);
2127 local_plt
[i
].plt
.offset
= (bfd_vma
) -1;
2131 if (htab
->tls_ldm_got
.refcount
> 0)
2133 /* Allocate 2 got entries and 1 dynamic reloc for R_390_TLS_LDM64
2135 htab
->tls_ldm_got
.offset
= htab
->elf
.sgot
->size
;
2136 htab
->elf
.sgot
->size
+= 2 * GOT_ENTRY_SIZE
;
2137 htab
->elf
.srelgot
->size
+= sizeof (Elf64_External_Rela
);
2140 htab
->tls_ldm_got
.offset
= -1;
2142 /* Allocate global sym .plt and .got entries, and space for global
2143 sym dynamic relocs. */
2144 elf_link_hash_traverse (&htab
->elf
, allocate_dynrelocs
, info
);
2146 /* We now have determined the sizes of the various dynamic sections.
2147 Allocate memory for them. */
2149 for (s
= dynobj
->sections
; s
!= NULL
; s
= s
->next
)
2151 if ((s
->flags
& SEC_LINKER_CREATED
) == 0)
2154 if (s
== htab
->elf
.splt
2155 || s
== htab
->elf
.sgot
2156 || s
== htab
->elf
.sgotplt
2157 || s
== htab
->sdynbss
2158 || s
== htab
->elf
.iplt
2159 || s
== htab
->elf
.igotplt
2160 || s
== htab
->irelifunc
)
2162 /* Strip this section if we don't need it; see the
2165 else if (CONST_STRNEQ (bfd_get_section_name (dynobj
, s
), ".rela"))
2167 if (s
->size
!= 0 && s
!= htab
->elf
.srelplt
)
2170 /* We use the reloc_count field as a counter if we need
2171 to copy relocs into the output file. */
2176 /* It's not one of our sections, so don't allocate space. */
2182 /* If we don't need this section, strip it from the
2183 output file. This is to handle .rela.bss and
2184 .rela.plt. We must create it in
2185 create_dynamic_sections, because it must be created
2186 before the linker maps input sections to output
2187 sections. The linker does that before
2188 adjust_dynamic_symbol is called, and it is that
2189 function which decides whether anything needs to go
2190 into these sections. */
2192 s
->flags
|= SEC_EXCLUDE
;
2196 if ((s
->flags
& SEC_HAS_CONTENTS
) == 0)
2199 /* Allocate memory for the section contents. We use bfd_zalloc
2200 here in case unused entries are not reclaimed before the
2201 section's contents are written out. This should not happen,
2202 but this way if it does, we get a R_390_NONE reloc instead
2204 s
->contents
= (bfd_byte
*) bfd_zalloc (dynobj
, s
->size
);
2205 if (s
->contents
== NULL
)
2209 if (htab
->elf
.dynamic_sections_created
)
2211 /* Add some entries to the .dynamic section. We fill in the
2212 values later, in elf_s390_finish_dynamic_sections, but we
2213 must add the entries now so that we get the correct size for
2214 the .dynamic section. The DT_DEBUG entry is filled in by the
2215 dynamic linker and used by the debugger. */
2216 #define add_dynamic_entry(TAG, VAL) \
2217 _bfd_elf_add_dynamic_entry (info, TAG, VAL)
2219 if (bfd_link_executable (info
))
2221 if (!add_dynamic_entry (DT_DEBUG
, 0))
2225 if (htab
->elf
.splt
->size
!= 0)
2227 if (!add_dynamic_entry (DT_PLTGOT
, 0)
2228 || !add_dynamic_entry (DT_PLTRELSZ
, 0)
2229 || !add_dynamic_entry (DT_PLTREL
, DT_RELA
)
2230 || !add_dynamic_entry (DT_JMPREL
, 0))
2236 if (!add_dynamic_entry (DT_RELA
, 0)
2237 || !add_dynamic_entry (DT_RELASZ
, 0)
2238 || !add_dynamic_entry (DT_RELAENT
, sizeof (Elf64_External_Rela
)))
2241 /* If any dynamic relocs apply to a read-only section,
2242 then we need a DT_TEXTREL entry. */
2243 if ((info
->flags
& DF_TEXTREL
) == 0)
2244 elf_link_hash_traverse (&htab
->elf
, readonly_dynrelocs
,
2247 if ((info
->flags
& DF_TEXTREL
) != 0)
2249 if (!add_dynamic_entry (DT_TEXTREL
, 0))
2254 #undef add_dynamic_entry
2259 /* Return the base VMA address which should be subtracted from real addresses
2260 when resolving @dtpoff relocation.
2261 This is PT_TLS segment p_vaddr. */
2264 dtpoff_base (struct bfd_link_info
*info
)
2266 /* If tls_sec is NULL, we should have signalled an error already. */
2267 if (elf_hash_table (info
)->tls_sec
== NULL
)
2269 return elf_hash_table (info
)->tls_sec
->vma
;
2272 /* Return the relocation value for @tpoff relocation
2273 if STT_TLS virtual address is ADDRESS. */
2276 tpoff (struct bfd_link_info
*info
, bfd_vma address
)
2278 struct elf_link_hash_table
*htab
= elf_hash_table (info
);
2280 /* If tls_sec is NULL, we should have signalled an error already. */
2281 if (htab
->tls_sec
== NULL
)
2283 return htab
->tls_size
+ htab
->tls_sec
->vma
- address
;
2286 /* Complain if TLS instruction relocation is against an invalid
2290 invalid_tls_insn (bfd
*input_bfd
,
2291 asection
*input_section
,
2292 Elf_Internal_Rela
*rel
)
2294 reloc_howto_type
*howto
;
2296 howto
= elf_howto_table
+ ELF64_R_TYPE (rel
->r_info
);
2297 (*_bfd_error_handler
)
2298 (_("%B(%A+0x%lx): invalid instruction for TLS relocation %s"),
2301 (long) rel
->r_offset
,
2303 bfd_set_error (bfd_error_bad_value
);
2306 /* Relocate a 390 ELF section. */
2309 elf_s390_relocate_section (bfd
*output_bfd
,
2310 struct bfd_link_info
*info
,
2312 asection
*input_section
,
2314 Elf_Internal_Rela
*relocs
,
2315 Elf_Internal_Sym
*local_syms
,
2316 asection
**local_sections
)
2318 struct elf_s390_link_hash_table
*htab
;
2319 Elf_Internal_Shdr
*symtab_hdr
;
2320 struct elf_link_hash_entry
**sym_hashes
;
2321 bfd_vma
*local_got_offsets
;
2322 Elf_Internal_Rela
*rel
;
2323 Elf_Internal_Rela
*relend
;
2325 BFD_ASSERT (is_s390_elf (input_bfd
));
2327 htab
= elf_s390_hash_table (info
);
2331 symtab_hdr
= &elf_symtab_hdr (input_bfd
);
2332 sym_hashes
= elf_sym_hashes (input_bfd
);
2333 local_got_offsets
= elf_local_got_offsets (input_bfd
);
2336 relend
= relocs
+ input_section
->reloc_count
;
2337 for (; rel
< relend
; rel
++)
2339 unsigned int r_type
;
2340 reloc_howto_type
*howto
;
2341 unsigned long r_symndx
;
2342 struct elf_link_hash_entry
*h
;
2343 Elf_Internal_Sym
*sym
;
2347 bfd_boolean unresolved_reloc
;
2348 bfd_reloc_status_type r
;
2350 asection
*base_got
= htab
->elf
.sgot
;
2352 r_type
= ELF64_R_TYPE (rel
->r_info
);
2353 if (r_type
== (int) R_390_GNU_VTINHERIT
2354 || r_type
== (int) R_390_GNU_VTENTRY
)
2356 if (r_type
>= (int) R_390_max
)
2358 bfd_set_error (bfd_error_bad_value
);
2362 howto
= elf_howto_table
+ r_type
;
2363 r_symndx
= ELF64_R_SYM (rel
->r_info
);
2368 unresolved_reloc
= FALSE
;
2369 if (r_symndx
< symtab_hdr
->sh_info
)
2371 sym
= local_syms
+ r_symndx
;
2372 sec
= local_sections
[r_symndx
];
2374 if (ELF_ST_TYPE (sym
->st_info
) == STT_GNU_IFUNC
)
2376 struct plt_entry
*local_plt
= elf_s390_local_plt (input_bfd
);
2377 if (local_plt
== NULL
)
2380 /* Address of the PLT slot. */
2381 relocation
= (htab
->elf
.iplt
->output_section
->vma
2382 + htab
->elf
.iplt
->output_offset
2383 + local_plt
[r_symndx
].plt
.offset
);
2387 case R_390_PLTOFF16
:
2388 case R_390_PLTOFF32
:
2389 case R_390_PLTOFF64
:
2390 relocation
-= htab
->elf
.sgot
->output_section
->vma
;
2392 case R_390_GOTPLT12
:
2393 case R_390_GOTPLT16
:
2394 case R_390_GOTPLT20
:
2395 case R_390_GOTPLT32
:
2396 case R_390_GOTPLT64
:
2397 case R_390_GOTPLTENT
:
2405 /* Write the PLT slot address into the GOT slot. */
2406 bfd_put_64 (output_bfd
, relocation
,
2407 htab
->elf
.sgot
->contents
+
2408 local_got_offsets
[r_symndx
]);
2409 relocation
= (local_got_offsets
[r_symndx
] +
2410 htab
->elf
.sgot
->output_offset
);
2412 if (r_type
== R_390_GOTENT
|| r_type
== R_390_GOTPLTENT
)
2413 relocation
+= htab
->elf
.sgot
->output_section
->vma
;
2419 /* The output section is needed later in
2420 finish_dynamic_section when creating the dynamic
2422 local_plt
[r_symndx
].sec
= sec
;
2426 relocation
= _bfd_elf_rela_local_sym (output_bfd
, sym
, &sec
, rel
);
2430 bfd_boolean warned ATTRIBUTE_UNUSED
;
2431 bfd_boolean ignored ATTRIBUTE_UNUSED
;
2433 RELOC_FOR_GLOBAL_SYMBOL (info
, input_bfd
, input_section
, rel
,
2434 r_symndx
, symtab_hdr
, sym_hashes
,
2436 unresolved_reloc
, warned
, ignored
);
2439 if (sec
!= NULL
&& discarded_section (sec
))
2440 RELOC_AGAINST_DISCARDED_SECTION (info
, input_bfd
, input_section
,
2441 rel
, 1, relend
, howto
, 0, contents
);
2443 if (bfd_link_relocatable (info
))
2448 case R_390_GOTPLT12
:
2449 case R_390_GOTPLT16
:
2450 case R_390_GOTPLT20
:
2451 case R_390_GOTPLT32
:
2452 case R_390_GOTPLT64
:
2453 case R_390_GOTPLTENT
:
2454 /* There are three cases for a GOTPLT relocation. 1) The
2455 relocation is against the jump slot entry of a plt that
2456 will get emitted to the output file. 2) The relocation
2457 is against the jump slot of a plt entry that has been
2458 removed. elf_s390_adjust_gotplt has created a GOT entry
2459 as replacement. 3) The relocation is against a local symbol.
2460 Cases 2) and 3) are the same as the GOT relocation code
2461 so we just have to test for case 1 and fall through for
2463 if (h
!= NULL
&& h
->plt
.offset
!= (bfd_vma
) -1)
2467 if (s390_is_ifunc_symbol_p (h
))
2469 plt_index
= h
->plt
.offset
/ PLT_ENTRY_SIZE
;
2470 relocation
= (plt_index
* GOT_ENTRY_SIZE
+
2471 htab
->elf
.igotplt
->output_offset
);
2472 if (r_type
== R_390_GOTPLTENT
)
2473 relocation
+= htab
->elf
.igotplt
->output_section
->vma
;
2478 Current offset - size first entry / entry size. */
2479 plt_index
= (h
->plt
.offset
- PLT_FIRST_ENTRY_SIZE
) /
2482 /* Offset in GOT is PLT index plus GOT headers(3)
2483 times 8, addr & GOT addr. */
2484 relocation
= (plt_index
+ 3) * GOT_ENTRY_SIZE
;
2485 if (r_type
== R_390_GOTPLTENT
)
2486 relocation
+= htab
->elf
.sgot
->output_section
->vma
;
2488 unresolved_reloc
= FALSE
;
2499 /* Relocation is to the entry for this symbol in the global
2501 if (base_got
== NULL
)
2508 off
= h
->got
.offset
;
2509 dyn
= htab
->elf
.dynamic_sections_created
;
2511 if (s390_is_ifunc_symbol_p (h
))
2513 BFD_ASSERT (h
->plt
.offset
!= (bfd_vma
) -1);
2514 if (off
== (bfd_vma
)-1)
2516 /* No explicit GOT usage so redirect to the
2518 base_got
= htab
->elf
.igotplt
;
2519 off
= h
->plt
.offset
/ PLT_ENTRY_SIZE
* GOT_ENTRY_SIZE
;
2523 /* Explicit GOT slots must contain the address
2524 of the PLT slot. This will be handled in
2525 finish_dynamic_symbol. */
2528 else if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn
,
2529 bfd_link_pic (info
),
2531 || (bfd_link_pic (info
)
2532 && SYMBOL_REFERENCES_LOCAL (info
, h
))
2533 || (ELF_ST_VISIBILITY (h
->other
)
2534 && h
->root
.type
== bfd_link_hash_undefweak
))
2536 /* This is actually a static link, or it is a
2537 -Bsymbolic link and the symbol is defined
2538 locally, or the symbol was forced to be local
2539 because of a version file. We must initialize
2540 this entry in the global offset table. Since the
2541 offset must always be a multiple of 2, we use the
2542 least significant bit to record whether we have
2543 initialized it already.
2545 When doing a dynamic link, we create a .rel.got
2546 relocation entry to initialize the value. This
2547 is done in the finish_dynamic_symbol routine. */
2552 bfd_put_64 (output_bfd
, relocation
,
2553 base_got
->contents
+ off
);
2558 && bfd_link_pic (info
)
2559 && SYMBOL_REFERENCES_LOCAL (info
, h
))
2560 /* lgrl rx,sym@GOTENT -> larl rx, sym */
2561 && ((r_type
== R_390_GOTENT
2562 && (bfd_get_16 (input_bfd
,
2563 contents
+ rel
->r_offset
- 2)
2564 & 0xff0f) == 0xc408)
2565 /* lg rx, sym@GOT(r12) -> larl rx, sym */
2566 || (r_type
== R_390_GOT20
2567 && (bfd_get_32 (input_bfd
,
2568 contents
+ rel
->r_offset
- 2)
2569 & 0xff00f000) == 0xe300c000
2570 && bfd_get_8 (input_bfd
,
2571 contents
+ rel
->r_offset
+ 3) == 0x04)))
2574 unsigned short new_insn
=
2575 (0xc000 | (bfd_get_8 (input_bfd
,
2576 contents
+ rel
->r_offset
- 1) & 0xf0));
2577 bfd_put_16 (output_bfd
, new_insn
,
2578 contents
+ rel
->r_offset
- 2);
2579 r_type
= R_390_PC32DBL
;
2581 howto
= elf_howto_table
+ r_type
;
2582 relocation
= h
->root
.u
.def
.value
2583 + h
->root
.u
.def
.section
->output_section
->vma
2584 + h
->root
.u
.def
.section
->output_offset
;
2589 unresolved_reloc
= FALSE
;
2593 if (local_got_offsets
== NULL
)
2596 off
= local_got_offsets
[r_symndx
];
2598 /* The offset must always be a multiple of 8. We use
2599 the least significant bit to record whether we have
2600 already generated the necessary reloc. */
2605 bfd_put_64 (output_bfd
, relocation
,
2606 htab
->elf
.sgot
->contents
+ off
);
2608 if (bfd_link_pic (info
))
2611 Elf_Internal_Rela outrel
;
2614 s
= htab
->elf
.srelgot
;
2618 outrel
.r_offset
= (htab
->elf
.sgot
->output_section
->vma
2619 + htab
->elf
.sgot
->output_offset
2621 outrel
.r_info
= ELF64_R_INFO (0, R_390_RELATIVE
);
2622 outrel
.r_addend
= relocation
;
2624 loc
+= s
->reloc_count
++ * sizeof (Elf64_External_Rela
);
2625 bfd_elf64_swap_reloca_out (output_bfd
, &outrel
, loc
);
2628 local_got_offsets
[r_symndx
] |= 1;
2632 if (off
>= (bfd_vma
) -2)
2635 relocation
= base_got
->output_offset
+ off
;
2637 /* For @GOTENT the relocation is against the offset between
2638 the instruction and the symbols entry in the GOT and not
2639 between the start of the GOT and the symbols entry. We
2640 add the vma of the GOT to get the correct value. */
2641 if ( r_type
== R_390_GOTENT
2642 || r_type
== R_390_GOTPLTENT
)
2643 relocation
+= base_got
->output_section
->vma
;
2647 case R_390_GOTOFF16
:
2648 case R_390_GOTOFF32
:
2649 case R_390_GOTOFF64
:
2650 /* Relocation is relative to the start of the global offset
2654 && s390_is_ifunc_symbol_p (h
)
2656 && !bfd_link_executable (info
))
2658 relocation
= (htab
->elf
.iplt
->output_section
->vma
2659 + htab
->elf
.iplt
->output_offset
2661 - htab
->elf
.sgot
->output_section
->vma
);
2665 /* Note that sgot->output_offset is not involved in this
2666 calculation. We always want the start of .got. If we
2667 defined _GLOBAL_OFFSET_TABLE in a different way, as is
2668 permitted by the ABI, we might have to change this
2670 relocation
-= htab
->elf
.sgot
->output_section
->vma
;
2674 case R_390_GOTPCDBL
:
2675 /* Use global offset table as symbol value. */
2676 relocation
= htab
->elf
.sgot
->output_section
->vma
;
2677 unresolved_reloc
= FALSE
;
2680 case R_390_PLT12DBL
:
2681 case R_390_PLT16DBL
:
2682 case R_390_PLT24DBL
:
2684 case R_390_PLT32DBL
:
2686 /* Relocation is to the entry for this symbol in the
2687 procedure linkage table. */
2689 /* Resolve a PLT32 reloc against a local symbol directly,
2690 without using the procedure linkage table. */
2694 if (h
->plt
.offset
== (bfd_vma
) -1
2695 || (htab
->elf
.splt
== NULL
&& !s390_is_ifunc_symbol_p (h
)))
2697 /* We didn't make a PLT entry for this symbol. This
2698 happens when statically linking PIC code, or when
2699 using -Bsymbolic. */
2702 if (s390_is_ifunc_symbol_p (h
))
2703 relocation
= (htab
->elf
.iplt
->output_section
->vma
2704 + htab
->elf
.iplt
->output_offset
2707 relocation
= (htab
->elf
.splt
->output_section
->vma
2708 + htab
->elf
.splt
->output_offset
2710 unresolved_reloc
= FALSE
;
2713 case R_390_PLTOFF16
:
2714 case R_390_PLTOFF32
:
2715 case R_390_PLTOFF64
:
2716 /* Relocation is to the entry for this symbol in the
2717 procedure linkage table relative to the start of the GOT. */
2719 /* For local symbols or if we didn't make a PLT entry for
2720 this symbol resolve the symbol directly. */
2722 || h
->plt
.offset
== (bfd_vma
) -1
2723 || (htab
->elf
.splt
== NULL
&& !s390_is_ifunc_symbol_p (h
)))
2725 relocation
-= htab
->elf
.sgot
->output_section
->vma
;
2729 if (s390_is_ifunc_symbol_p (h
))
2730 relocation
= (htab
->elf
.iplt
->output_section
->vma
2731 + htab
->elf
.iplt
->output_offset
2733 - htab
->elf
.sgot
->output_section
->vma
);
2735 relocation
= (htab
->elf
.splt
->output_section
->vma
2736 + htab
->elf
.splt
->output_offset
2738 - htab
->elf
.sgot
->output_section
->vma
);
2739 unresolved_reloc
= FALSE
;
2749 /* The target of these relocs are instruction operands
2750 residing in read-only sections. We cannot emit a runtime
2753 && s390_is_ifunc_symbol_p (h
)
2755 && bfd_link_pic (info
))
2757 relocation
= (htab
->elf
.iplt
->output_section
->vma
2758 + htab
->elf
.iplt
->output_offset
2769 && s390_is_ifunc_symbol_p (h
)
2772 if (!bfd_link_pic (info
) || !h
->non_got_ref
)
2774 /* For a non-shared object STT_GNU_IFUNC symbol must
2776 relocation
= (htab
->elf
.iplt
->output_section
->vma
2777 + htab
->elf
.iplt
->output_offset
2783 /* For shared objects a runtime relocation is needed. */
2785 Elf_Internal_Rela outrel
;
2788 /* Need a dynamic relocation to get the real function
2790 outrel
.r_offset
= _bfd_elf_section_offset (output_bfd
,
2794 if (outrel
.r_offset
== (bfd_vma
) -1
2795 || outrel
.r_offset
== (bfd_vma
) -2)
2798 outrel
.r_offset
+= (input_section
->output_section
->vma
2799 + input_section
->output_offset
);
2801 if (h
->dynindx
== -1
2803 || bfd_link_executable (info
))
2805 /* This symbol is resolved locally. */
2806 outrel
.r_info
= ELF64_R_INFO (0, R_390_IRELATIVE
);
2807 outrel
.r_addend
= (h
->root
.u
.def
.value
2808 + h
->root
.u
.def
.section
->output_section
->vma
2809 + h
->root
.u
.def
.section
->output_offset
);
2813 outrel
.r_info
= ELF64_R_INFO (h
->dynindx
, r_type
);
2814 outrel
.r_addend
= 0;
2817 sreloc
= htab
->elf
.irelifunc
;
2818 elf_append_rela (output_bfd
, sreloc
, &outrel
);
2820 /* If this reloc is against an external symbol, we
2821 do not want to fiddle with the addend. Otherwise,
2822 we need to include the symbol value so that it
2823 becomes an addend for the dynamic reloc. For an
2824 internal symbol, we have updated addend. */
2829 if ((input_section
->flags
& SEC_ALLOC
) == 0)
2832 if ((bfd_link_pic (info
)
2834 || ELF_ST_VISIBILITY (h
->other
) == STV_DEFAULT
2835 || h
->root
.type
!= bfd_link_hash_undefweak
)
2836 && ((r_type
!= R_390_PC16
2837 && r_type
!= R_390_PC12DBL
2838 && r_type
!= R_390_PC16DBL
2839 && r_type
!= R_390_PC24DBL
2840 && r_type
!= R_390_PC32
2841 && r_type
!= R_390_PC32DBL
2842 && r_type
!= R_390_PC64
)
2843 || !SYMBOL_CALLS_LOCAL (info
, h
)))
2844 || (ELIMINATE_COPY_RELOCS
2845 && !bfd_link_pic (info
)
2851 || h
->root
.type
== bfd_link_hash_undefweak
2852 || h
->root
.type
== bfd_link_hash_undefined
)))
2854 Elf_Internal_Rela outrel
;
2855 bfd_boolean skip
, relocate
;
2859 /* When generating a shared object, these relocations
2860 are copied into the output file to be resolved at run
2866 _bfd_elf_section_offset (output_bfd
, info
, input_section
,
2868 if (outrel
.r_offset
== (bfd_vma
) -1)
2870 else if (outrel
.r_offset
== (bfd_vma
) -2)
2871 skip
= TRUE
, relocate
= TRUE
;
2873 outrel
.r_offset
+= (input_section
->output_section
->vma
2874 + input_section
->output_offset
);
2877 memset (&outrel
, 0, sizeof outrel
);
2880 && (r_type
== R_390_PC16
2881 || r_type
== R_390_PC12DBL
2882 || r_type
== R_390_PC16DBL
2883 || r_type
== R_390_PC24DBL
2884 || r_type
== R_390_PC32
2885 || r_type
== R_390_PC32DBL
2886 || r_type
== R_390_PC64
2887 || !bfd_link_pic (info
)
2888 || !SYMBOLIC_BIND (info
, h
)
2889 || !h
->def_regular
))
2891 outrel
.r_info
= ELF64_R_INFO (h
->dynindx
, r_type
);
2892 outrel
.r_addend
= rel
->r_addend
;
2896 /* This symbol is local, or marked to become local. */
2897 outrel
.r_addend
= relocation
+ rel
->r_addend
;
2898 if (r_type
== R_390_64
)
2901 outrel
.r_info
= ELF64_R_INFO (0, R_390_RELATIVE
);
2907 if (bfd_is_abs_section (sec
))
2909 else if (sec
== NULL
|| sec
->owner
== NULL
)
2911 bfd_set_error(bfd_error_bad_value
);
2918 osec
= sec
->output_section
;
2919 sindx
= elf_section_data (osec
)->dynindx
;
2923 osec
= htab
->elf
.text_index_section
;
2924 sindx
= elf_section_data (osec
)->dynindx
;
2926 BFD_ASSERT (sindx
!= 0);
2928 /* We are turning this relocation into one
2929 against a section symbol, so subtract out
2930 the output section's address but not the
2931 offset of the input section in the output
2933 outrel
.r_addend
-= osec
->vma
;
2935 outrel
.r_info
= ELF64_R_INFO (sindx
, r_type
);
2939 sreloc
= elf_section_data (input_section
)->sreloc
;
2943 loc
= sreloc
->contents
;
2944 loc
+= sreloc
->reloc_count
++ * sizeof (Elf64_External_Rela
);
2945 bfd_elf64_swap_reloca_out (output_bfd
, &outrel
, loc
);
2947 /* If this reloc is against an external symbol, we do
2948 not want to fiddle with the addend. Otherwise, we
2949 need to include the symbol value so that it becomes
2950 an addend for the dynamic reloc. */
2957 /* Relocations for tls literal pool entries. */
2958 case R_390_TLS_IE64
:
2959 if (bfd_link_pic (info
))
2961 Elf_Internal_Rela outrel
;
2965 outrel
.r_offset
= rel
->r_offset
2966 + input_section
->output_section
->vma
2967 + input_section
->output_offset
;
2968 outrel
.r_info
= ELF64_R_INFO (0, R_390_RELATIVE
);
2969 sreloc
= elf_section_data (input_section
)->sreloc
;
2972 loc
= sreloc
->contents
;
2973 loc
+= sreloc
->reloc_count
++ * sizeof (Elf64_External_Rela
);
2974 bfd_elf64_swap_reloc_out (output_bfd
, &outrel
, loc
);
2978 case R_390_TLS_GD64
:
2979 case R_390_TLS_GOTIE64
:
2980 r_type
= elf_s390_tls_transition (info
, r_type
, h
== NULL
);
2981 tls_type
= GOT_UNKNOWN
;
2982 if (h
== NULL
&& local_got_offsets
)
2983 tls_type
= elf_s390_local_got_tls_type (input_bfd
) [r_symndx
];
2986 tls_type
= elf_s390_hash_entry(h
)->tls_type
;
2987 if (!bfd_link_pic (info
) && h
->dynindx
== -1 && tls_type
>= GOT_TLS_IE
)
2988 r_type
= R_390_TLS_LE64
;
2990 if (r_type
== R_390_TLS_GD64
&& tls_type
>= GOT_TLS_IE
)
2991 r_type
= R_390_TLS_IE64
;
2993 if (r_type
== R_390_TLS_LE64
)
2995 /* This relocation gets optimized away by the local exec
2996 access optimization. */
2997 BFD_ASSERT (! unresolved_reloc
);
2998 bfd_put_64 (output_bfd
, -tpoff (info
, relocation
),
2999 contents
+ rel
->r_offset
);
3003 if (htab
->elf
.sgot
== NULL
)
3007 off
= h
->got
.offset
;
3010 if (local_got_offsets
== NULL
)
3013 off
= local_got_offsets
[r_symndx
];
3022 Elf_Internal_Rela outrel
;
3026 if (htab
->elf
.srelgot
== NULL
)
3029 outrel
.r_offset
= (htab
->elf
.sgot
->output_section
->vma
3030 + htab
->elf
.sgot
->output_offset
+ off
);
3032 indx
= h
&& h
->dynindx
!= -1 ? h
->dynindx
: 0;
3033 if (r_type
== R_390_TLS_GD64
)
3034 dr_type
= R_390_TLS_DTPMOD
;
3036 dr_type
= R_390_TLS_TPOFF
;
3037 if (dr_type
== R_390_TLS_TPOFF
&& indx
== 0)
3038 outrel
.r_addend
= relocation
- dtpoff_base (info
);
3040 outrel
.r_addend
= 0;
3041 outrel
.r_info
= ELF64_R_INFO (indx
, dr_type
);
3042 loc
= htab
->elf
.srelgot
->contents
;
3043 loc
+= htab
->elf
.srelgot
->reloc_count
++
3044 * sizeof (Elf64_External_Rela
);
3045 bfd_elf64_swap_reloca_out (output_bfd
, &outrel
, loc
);
3047 if (r_type
== R_390_TLS_GD64
)
3051 BFD_ASSERT (! unresolved_reloc
);
3052 bfd_put_64 (output_bfd
,
3053 relocation
- dtpoff_base (info
),
3054 htab
->elf
.sgot
->contents
+ off
+ GOT_ENTRY_SIZE
);
3058 outrel
.r_info
= ELF64_R_INFO (indx
, R_390_TLS_DTPOFF
);
3059 outrel
.r_offset
+= GOT_ENTRY_SIZE
;
3060 outrel
.r_addend
= 0;
3061 htab
->elf
.srelgot
->reloc_count
++;
3062 loc
+= sizeof (Elf64_External_Rela
);
3063 bfd_elf64_swap_reloca_out (output_bfd
, &outrel
, loc
);
3070 local_got_offsets
[r_symndx
] |= 1;
3073 if (off
>= (bfd_vma
) -2)
3075 if (r_type
== ELF64_R_TYPE (rel
->r_info
))
3077 relocation
= htab
->elf
.sgot
->output_offset
+ off
;
3078 if (r_type
== R_390_TLS_IE64
|| r_type
== R_390_TLS_IEENT
)
3079 relocation
+= htab
->elf
.sgot
->output_section
->vma
;
3080 unresolved_reloc
= FALSE
;
3084 bfd_put_64 (output_bfd
, htab
->elf
.sgot
->output_offset
+ off
,
3085 contents
+ rel
->r_offset
);
3090 case R_390_TLS_GOTIE12
:
3091 case R_390_TLS_GOTIE20
:
3092 case R_390_TLS_IEENT
:
3095 if (local_got_offsets
== NULL
)
3097 off
= local_got_offsets
[r_symndx
];
3098 if (bfd_link_pic (info
))
3099 goto emit_tls_relocs
;
3103 off
= h
->got
.offset
;
3104 tls_type
= elf_s390_hash_entry(h
)->tls_type
;
3105 if (bfd_link_pic (info
) || h
->dynindx
!= -1 || tls_type
< GOT_TLS_IE
)
3106 goto emit_tls_relocs
;
3109 if (htab
->elf
.sgot
== NULL
)
3112 BFD_ASSERT (! unresolved_reloc
);
3113 bfd_put_64 (output_bfd
, -tpoff (info
, relocation
),
3114 htab
->elf
.sgot
->contents
+ off
);
3115 relocation
= htab
->elf
.sgot
->output_offset
+ off
;
3116 if (r_type
== R_390_TLS_IEENT
)
3117 relocation
+= htab
->elf
.sgot
->output_section
->vma
;
3118 unresolved_reloc
= FALSE
;
3121 case R_390_TLS_LDM64
:
3122 if (! bfd_link_pic (info
))
3123 /* The literal pool entry this relocation refers to gets ignored
3124 by the optimized code of the local exec model. Do nothing
3125 and the value will turn out zero. */
3128 if (htab
->elf
.sgot
== NULL
)
3131 off
= htab
->tls_ldm_got
.offset
;
3136 Elf_Internal_Rela outrel
;
3139 if (htab
->elf
.srelgot
== NULL
)
3142 outrel
.r_offset
= (htab
->elf
.sgot
->output_section
->vma
3143 + htab
->elf
.sgot
->output_offset
+ off
);
3145 bfd_put_64 (output_bfd
, 0,
3146 htab
->elf
.sgot
->contents
+ off
+ GOT_ENTRY_SIZE
);
3147 outrel
.r_info
= ELF64_R_INFO (0, R_390_TLS_DTPMOD
);
3148 outrel
.r_addend
= 0;
3149 loc
= htab
->elf
.srelgot
->contents
;
3150 loc
+= htab
->elf
.srelgot
->reloc_count
++
3151 * sizeof (Elf64_External_Rela
);
3152 bfd_elf64_swap_reloca_out (output_bfd
, &outrel
, loc
);
3153 htab
->tls_ldm_got
.offset
|= 1;
3155 relocation
= htab
->elf
.sgot
->output_offset
+ off
;
3156 unresolved_reloc
= FALSE
;
3159 case R_390_TLS_LE64
:
3160 if (bfd_link_dll (info
))
3162 /* Linking a shared library with non-fpic code requires
3163 a R_390_TLS_TPOFF relocation. */
3164 Elf_Internal_Rela outrel
;
3169 outrel
.r_offset
= rel
->r_offset
3170 + input_section
->output_section
->vma
3171 + input_section
->output_offset
;
3172 if (h
!= NULL
&& h
->dynindx
!= -1)
3176 outrel
.r_info
= ELF64_R_INFO (indx
, R_390_TLS_TPOFF
);
3178 outrel
.r_addend
= relocation
- dtpoff_base (info
);
3180 outrel
.r_addend
= 0;
3181 sreloc
= elf_section_data (input_section
)->sreloc
;
3184 loc
= sreloc
->contents
;
3185 loc
+= sreloc
->reloc_count
++ * sizeof (Elf64_External_Rela
);
3186 bfd_elf64_swap_reloca_out (output_bfd
, &outrel
, loc
);
3190 BFD_ASSERT (! unresolved_reloc
);
3191 bfd_put_64 (output_bfd
, -tpoff (info
, relocation
),
3192 contents
+ rel
->r_offset
);
3196 case R_390_TLS_LDO64
:
3197 if (bfd_link_pic (info
) || (input_section
->flags
& SEC_DEBUGGING
))
3198 relocation
-= dtpoff_base (info
);
3200 /* When converting LDO to LE, we must negate. */
3201 relocation
= -tpoff (info
, relocation
);
3204 /* Relocations for tls instructions. */
3205 case R_390_TLS_LOAD
:
3206 case R_390_TLS_GDCALL
:
3207 case R_390_TLS_LDCALL
:
3208 tls_type
= GOT_UNKNOWN
;
3209 if (h
== NULL
&& local_got_offsets
)
3210 tls_type
= elf_s390_local_got_tls_type (input_bfd
) [r_symndx
];
3212 tls_type
= elf_s390_hash_entry(h
)->tls_type
;
3214 if (tls_type
== GOT_TLS_GD
)
3217 if (r_type
== R_390_TLS_LOAD
)
3219 if (!bfd_link_pic (info
) && (h
== NULL
|| h
->dynindx
== -1))
3221 /* IE->LE transition. Four valid cases:
3222 lg %rx,(0,%ry) -> sllg %rx,%ry,0
3223 lg %rx,(%ry,0) -> sllg %rx,%ry,0
3224 lg %rx,(%ry,%r12) -> sllg %rx,%ry,0
3225 lg %rx,(%r12,%ry) -> sllg %rx,%ry,0 */
3226 unsigned int insn0
, insn1
, ry
;
3228 insn0
= bfd_get_32 (input_bfd
, contents
+ rel
->r_offset
);
3229 insn1
= bfd_get_16 (input_bfd
, contents
+ rel
->r_offset
+ 4);
3230 if (insn1
!= 0x0004)
3231 invalid_tls_insn (input_bfd
, input_section
, rel
);
3233 if ((insn0
& 0xff00f000) == 0xe3000000)
3234 /* lg %rx,0(%ry,0) -> sllg %rx,%ry,0 */
3235 ry
= (insn0
& 0x000f0000);
3236 else if ((insn0
& 0xff0f0000) == 0xe3000000)
3237 /* lg %rx,0(0,%ry) -> sllg %rx,%ry,0 */
3238 ry
= (insn0
& 0x0000f000) << 4;
3239 else if ((insn0
& 0xff00f000) == 0xe300c000)
3240 /* lg %rx,0(%ry,%r12) -> sllg %rx,%ry,0 */
3241 ry
= (insn0
& 0x000f0000);
3242 else if ((insn0
& 0xff0f0000) == 0xe30c0000)
3243 /* lg %rx,0(%r12,%ry) -> sllg %rx,%ry,0 */
3244 ry
= (insn0
& 0x0000f000) << 4;
3246 invalid_tls_insn (input_bfd
, input_section
, rel
);
3247 insn0
= 0xeb000000 | (insn0
& 0x00f00000) | ry
;
3249 bfd_put_32 (output_bfd
, insn0
, contents
+ rel
->r_offset
);
3250 bfd_put_16 (output_bfd
, insn1
, contents
+ rel
->r_offset
+ 4);
3253 else if (r_type
== R_390_TLS_GDCALL
)
3255 unsigned int insn0
, insn1
;
3257 insn0
= bfd_get_32 (input_bfd
, contents
+ rel
->r_offset
);
3258 insn1
= bfd_get_16 (input_bfd
, contents
+ rel
->r_offset
+ 4);
3259 if ((insn0
& 0xffff0000) != 0xc0e50000)
3260 invalid_tls_insn (input_bfd
, input_section
, rel
);
3261 if (!bfd_link_pic (info
) && (h
== NULL
|| h
->dynindx
== -1))
3263 /* GD->LE transition.
3264 brasl %r14,__tls_get_addr@plt -> brcl 0,. */
3270 /* GD->IE transition.
3271 brasl %r14,__tls_get_addr@plt -> lg %r2,0(%r2,%r12) */
3275 bfd_put_32 (output_bfd
, insn0
, contents
+ rel
->r_offset
);
3276 bfd_put_16 (output_bfd
, insn1
, contents
+ rel
->r_offset
+ 4);
3278 else if (r_type
== R_390_TLS_LDCALL
)
3280 if (!bfd_link_pic (info
))
3282 unsigned int insn0
, insn1
;
3284 insn0
= bfd_get_32 (input_bfd
, contents
+ rel
->r_offset
);
3285 insn1
= bfd_get_16 (input_bfd
, contents
+ rel
->r_offset
+ 4);
3286 if ((insn0
& 0xffff0000) != 0xc0e50000)
3287 invalid_tls_insn (input_bfd
, input_section
, rel
);
3288 /* LD->LE transition.
3289 brasl %r14,__tls_get_addr@plt -> brcl 0,. */
3292 bfd_put_32 (output_bfd
, insn0
, contents
+ rel
->r_offset
);
3293 bfd_put_16 (output_bfd
, insn1
, contents
+ rel
->r_offset
+ 4);
3302 /* Dynamic relocs are not propagated for SEC_DEBUGGING sections
3303 because such sections are not SEC_ALLOC and thus ld.so will
3304 not process them. */
3305 if (unresolved_reloc
3306 && !((input_section
->flags
& SEC_DEBUGGING
) != 0
3308 && _bfd_elf_section_offset (output_bfd
, info
, input_section
,
3309 rel
->r_offset
) != (bfd_vma
) -1)
3310 (*_bfd_error_handler
)
3311 (_("%B(%A+0x%lx): unresolvable %s relocation against symbol `%s'"),
3314 (long) rel
->r_offset
,
3316 h
->root
.root
.string
);
3320 /* When applying a 24 bit reloc we need to start one byte
3321 earlier. Otherwise the 32 bit get/put bfd operations might
3322 access a byte after the actual section. */
3323 if (r_type
== R_390_PC24DBL
3324 || r_type
== R_390_PLT24DBL
)
3327 if (r_type
== R_390_20
3328 || r_type
== R_390_GOT20
3329 || r_type
== R_390_GOTPLT20
3330 || r_type
== R_390_TLS_GOTIE20
)
3332 relocation
+= rel
->r_addend
;
3333 relocation
= (relocation
&0xfff) << 8 | (relocation
&0xff000) >> 12;
3334 r
= _bfd_final_link_relocate (howto
, input_bfd
, input_section
,
3335 contents
, rel
->r_offset
,
3339 r
= _bfd_final_link_relocate (howto
, input_bfd
, input_section
,
3340 contents
, rel
->r_offset
,
3341 relocation
, rel
->r_addend
);
3343 if (r
!= bfd_reloc_ok
)
3348 name
= h
->root
.root
.string
;
3351 name
= bfd_elf_string_from_elf_section (input_bfd
,
3352 symtab_hdr
->sh_link
,
3357 name
= bfd_section_name (input_bfd
, sec
);
3360 if (r
== bfd_reloc_overflow
)
3361 (*info
->callbacks
->reloc_overflow
)
3362 (info
, (h
? &h
->root
: NULL
), name
, howto
->name
,
3363 (bfd_vma
) 0, input_bfd
, input_section
, rel
->r_offset
);
3366 (*_bfd_error_handler
)
3367 (_("%B(%A+0x%lx): reloc against `%s': error %d"),
3368 input_bfd
, input_section
,
3369 (long) rel
->r_offset
, name
, (int) r
);
3378 /* Generate the PLT slots together with the dynamic relocations needed
3379 for IFUNC symbols. */
3382 elf_s390_finish_ifunc_symbol (bfd
*output_bfd
,
3383 struct bfd_link_info
*info
,
3384 struct elf_link_hash_entry
*h
,
3385 struct elf_s390_link_hash_table
*htab
,
3387 bfd_vma resolver_address
)
3391 Elf_Internal_Rela rela
;
3393 asection
*plt
, *gotplt
, *relplt
;
3395 if (htab
->elf
.iplt
== NULL
3396 || htab
->elf
.igotplt
== NULL
3397 || htab
->elf
.irelplt
== NULL
)
3400 /* Index of the PLT slot within iplt section. */
3401 plt_index
= plt_offset
/ PLT_ENTRY_SIZE
;
3402 plt
= htab
->elf
.iplt
;
3403 /* Offset into the igot.plt section. */
3404 got_offset
= plt_index
* GOT_ENTRY_SIZE
;
3405 gotplt
= htab
->elf
.igotplt
;
3406 relplt
= htab
->elf
.irelplt
;
3408 /* Fill in the blueprint of a PLT. */
3409 memcpy (plt
->contents
+ plt_offset
, elf_s390x_plt_entry
,
3412 /* Fixup the relative address to the GOT entry */
3413 bfd_put_32 (output_bfd
,
3414 (gotplt
->output_section
->vma
+
3415 gotplt
->output_offset
+ got_offset
3416 - (plt
->output_section
->vma
+
3417 plt
->output_offset
+
3419 plt
->contents
+ plt_offset
+ 2);
3420 /* Fixup the relative branch to PLT 0 */
3421 bfd_put_32 (output_bfd
, - (plt
->output_offset
+
3422 (PLT_ENTRY_SIZE
* plt_index
) + 22)/2,
3423 plt
->contents
+ plt_offset
+ 24);
3424 /* Fixup offset into .rela.plt section. */
3425 bfd_put_32 (output_bfd
, relplt
->output_offset
+
3426 plt_index
* sizeof (Elf64_External_Rela
),
3427 plt
->contents
+ plt_offset
+ 28);
3429 /* Fill in the entry in the global offset table.
3430 Points to instruction after GOT offset. */
3431 bfd_put_64 (output_bfd
,
3432 (plt
->output_section
->vma
3433 + plt
->output_offset
3436 gotplt
->contents
+ got_offset
);
3438 /* Fill in the entry in the .rela.plt section. */
3439 rela
.r_offset
= (gotplt
->output_section
->vma
3440 + gotplt
->output_offset
3445 || ((bfd_link_executable (info
)
3446 || ELF_ST_VISIBILITY (h
->other
) != STV_DEFAULT
)
3449 /* The symbol can be locally resolved. */
3450 rela
.r_info
= ELF64_R_INFO (0, R_390_IRELATIVE
);
3451 rela
.r_addend
= resolver_address
;
3455 rela
.r_info
= ELF64_R_INFO (h
->dynindx
, R_390_JMP_SLOT
);
3459 loc
= relplt
->contents
+ plt_index
* sizeof (Elf64_External_Rela
);
3460 bfd_elf64_swap_reloca_out (output_bfd
, &rela
, loc
);
3464 /* Finish up dynamic symbol handling. We set the contents of various
3465 dynamic sections here. */
3468 elf_s390_finish_dynamic_symbol (bfd
*output_bfd
,
3469 struct bfd_link_info
*info
,
3470 struct elf_link_hash_entry
*h
,
3471 Elf_Internal_Sym
*sym
)
3473 struct elf_s390_link_hash_table
*htab
;
3474 struct elf_s390_link_hash_entry
*eh
= (struct elf_s390_link_hash_entry
*)h
;
3476 htab
= elf_s390_hash_table (info
);
3480 if (h
->plt
.offset
!= (bfd_vma
) -1)
3484 Elf_Internal_Rela rela
;
3487 /* This symbol has an entry in the procedure linkage table. Set
3489 if (s390_is_ifunc_symbol_p (h
) && h
->def_regular
)
3491 elf_s390_finish_ifunc_symbol (output_bfd
, info
, h
,
3492 htab
, h
->plt
.offset
,
3493 eh
->ifunc_resolver_address
+
3494 eh
->ifunc_resolver_section
->output_offset
+
3495 eh
->ifunc_resolver_section
->output_section
->vma
);
3497 /* Do not return yet. Handling of explicit GOT slots of
3498 IFUNC symbols is below. */
3502 if (h
->dynindx
== -1
3503 || htab
->elf
.splt
== NULL
3504 || htab
->elf
.sgotplt
== NULL
3505 || htab
->elf
.srelplt
== NULL
)
3509 Current offset - size first entry / entry size. */
3510 plt_index
= (h
->plt
.offset
- PLT_FIRST_ENTRY_SIZE
) / PLT_ENTRY_SIZE
;
3512 /* Offset in GOT is PLT index plus GOT headers(3) times 8,
3514 got_offset
= (plt_index
+ 3) * GOT_ENTRY_SIZE
;
3516 /* Fill in the blueprint of a PLT. */
3517 memcpy (htab
->elf
.splt
->contents
+ h
->plt
.offset
, elf_s390x_plt_entry
,
3520 /* Fixup the relative address to the GOT entry */
3521 bfd_put_32 (output_bfd
,
3522 (htab
->elf
.sgotplt
->output_section
->vma
+
3523 htab
->elf
.sgotplt
->output_offset
+ got_offset
3524 - (htab
->elf
.splt
->output_section
->vma
+
3525 htab
->elf
.splt
->output_offset
+
3527 htab
->elf
.splt
->contents
+ h
->plt
.offset
+ 2);
3528 /* Fixup the relative branch to PLT 0 */
3529 bfd_put_32 (output_bfd
, - (PLT_FIRST_ENTRY_SIZE
+
3530 (PLT_ENTRY_SIZE
* plt_index
) + 22)/2,
3531 htab
->elf
.splt
->contents
+ h
->plt
.offset
+ 24);
3532 /* Fixup offset into .rela.plt section. */
3533 bfd_put_32 (output_bfd
, plt_index
* sizeof (Elf64_External_Rela
),
3534 htab
->elf
.splt
->contents
+ h
->plt
.offset
+ 28);
3536 /* Fill in the entry in the global offset table.
3537 Points to instruction after GOT offset. */
3538 bfd_put_64 (output_bfd
,
3539 (htab
->elf
.splt
->output_section
->vma
3540 + htab
->elf
.splt
->output_offset
3543 htab
->elf
.sgotplt
->contents
+ got_offset
);
3545 /* Fill in the entry in the .rela.plt section. */
3546 rela
.r_offset
= (htab
->elf
.sgotplt
->output_section
->vma
3547 + htab
->elf
.sgotplt
->output_offset
3549 rela
.r_info
= ELF64_R_INFO (h
->dynindx
, R_390_JMP_SLOT
);
3551 loc
= htab
->elf
.srelplt
->contents
+ plt_index
*
3552 sizeof (Elf64_External_Rela
);
3553 bfd_elf64_swap_reloca_out (output_bfd
, &rela
, loc
);
3555 if (!h
->def_regular
)
3557 /* Mark the symbol as undefined, rather than as defined in
3558 the .plt section. Leave the value alone. This is a clue
3559 for the dynamic linker, to make function pointer
3560 comparisons work between an application and shared
3562 sym
->st_shndx
= SHN_UNDEF
;
3567 if (h
->got
.offset
!= (bfd_vma
) -1
3568 && elf_s390_hash_entry(h
)->tls_type
!= GOT_TLS_GD
3569 && elf_s390_hash_entry(h
)->tls_type
!= GOT_TLS_IE
3570 && elf_s390_hash_entry(h
)->tls_type
!= GOT_TLS_IE_NLT
)
3572 Elf_Internal_Rela rela
;
3575 /* This symbol has an entry in the global offset table. Set it
3577 if (htab
->elf
.sgot
== NULL
|| htab
->elf
.srelgot
== NULL
)
3580 rela
.r_offset
= (htab
->elf
.sgot
->output_section
->vma
3581 + htab
->elf
.sgot
->output_offset
3582 + (h
->got
.offset
&~ (bfd_vma
) 1));
3584 if (h
->def_regular
&& s390_is_ifunc_symbol_p (h
))
3586 if (bfd_link_pic (info
))
3588 /* An explicit GOT slot usage needs GLOB_DAT. If the
3589 symbol references local the implicit got.iplt slot
3590 will be used and the IRELATIVE reloc has been created
3596 /* For non-shared objects explicit GOT slots must be
3597 filled with the PLT slot address for pointer
3598 equality reasons. */
3599 bfd_put_64 (output_bfd
, (htab
->elf
.iplt
->output_section
->vma
3600 + htab
->elf
.iplt
->output_offset
3602 htab
->elf
.sgot
->contents
+ h
->got
.offset
);
3606 else if (bfd_link_pic (info
)
3607 && SYMBOL_REFERENCES_LOCAL (info
, h
))
3609 /* If this is a static link, or it is a -Bsymbolic link and
3610 the symbol is defined locally or was forced to be local
3611 because of a version file, we just want to emit a
3612 RELATIVE reloc. The entry in the global offset table
3613 will already have been initialized in the
3614 relocate_section function. */
3615 if (!h
->def_regular
)
3617 BFD_ASSERT((h
->got
.offset
& 1) != 0);
3618 rela
.r_info
= ELF64_R_INFO (0, R_390_RELATIVE
);
3619 rela
.r_addend
= (h
->root
.u
.def
.value
3620 + h
->root
.u
.def
.section
->output_section
->vma
3621 + h
->root
.u
.def
.section
->output_offset
);
3625 BFD_ASSERT((h
->got
.offset
& 1) == 0);
3627 bfd_put_64 (output_bfd
, (bfd_vma
) 0, htab
->elf
.sgot
->contents
+ h
->got
.offset
);
3628 rela
.r_info
= ELF64_R_INFO (h
->dynindx
, R_390_GLOB_DAT
);
3632 loc
= htab
->elf
.srelgot
->contents
;
3633 loc
+= htab
->elf
.srelgot
->reloc_count
++ * sizeof (Elf64_External_Rela
);
3634 bfd_elf64_swap_reloca_out (output_bfd
, &rela
, loc
);
3639 Elf_Internal_Rela rela
;
3642 /* This symbols needs a copy reloc. Set it up. */
3644 if (h
->dynindx
== -1
3645 || (h
->root
.type
!= bfd_link_hash_defined
3646 && h
->root
.type
!= bfd_link_hash_defweak
)
3647 || htab
->srelbss
== NULL
)
3650 rela
.r_offset
= (h
->root
.u
.def
.value
3651 + h
->root
.u
.def
.section
->output_section
->vma
3652 + h
->root
.u
.def
.section
->output_offset
);
3653 rela
.r_info
= ELF64_R_INFO (h
->dynindx
, R_390_COPY
);
3655 loc
= htab
->srelbss
->contents
;
3656 loc
+= htab
->srelbss
->reloc_count
++ * sizeof (Elf64_External_Rela
);
3657 bfd_elf64_swap_reloca_out (output_bfd
, &rela
, loc
);
3660 /* Mark some specially defined symbols as absolute. */
3661 if (h
== htab
->elf
.hdynamic
3662 || h
== htab
->elf
.hgot
3663 || h
== htab
->elf
.hplt
)
3664 sym
->st_shndx
= SHN_ABS
;
3669 /* Used to decide how to sort relocs in an optimal manner for the
3670 dynamic linker, before writing them out. */
3672 static enum elf_reloc_type_class
3673 elf_s390_reloc_type_class (const struct bfd_link_info
*info ATTRIBUTE_UNUSED
,
3674 const asection
*rel_sec ATTRIBUTE_UNUSED
,
3675 const Elf_Internal_Rela
*rela
)
3677 bfd
*abfd
= info
->output_bfd
;
3678 const struct elf_backend_data
*bed
= get_elf_backend_data (abfd
);
3679 struct elf_s390_link_hash_table
*htab
= elf_s390_hash_table (info
);
3680 unsigned long r_symndx
= ELF64_R_SYM (rela
->r_info
);
3681 Elf_Internal_Sym sym
;
3683 if (htab
->elf
.dynsym
== NULL
3684 || !bed
->s
->swap_symbol_in (abfd
,
3685 (htab
->elf
.dynsym
->contents
3686 + r_symndx
* bed
->s
->sizeof_sym
),
3690 /* Check relocation against STT_GNU_IFUNC symbol. */
3691 if (ELF_ST_TYPE (sym
.st_info
) == STT_GNU_IFUNC
)
3692 return reloc_class_ifunc
;
3694 switch ((int) ELF64_R_TYPE (rela
->r_info
))
3696 case R_390_RELATIVE
:
3697 return reloc_class_relative
;
3698 case R_390_JMP_SLOT
:
3699 return reloc_class_plt
;
3701 return reloc_class_copy
;
3703 return reloc_class_normal
;
3707 /* Finish up the dynamic sections. */
3710 elf_s390_finish_dynamic_sections (bfd
*output_bfd
,
3711 struct bfd_link_info
*info
)
3713 struct elf_s390_link_hash_table
*htab
;
3719 htab
= elf_s390_hash_table (info
);
3723 dynobj
= htab
->elf
.dynobj
;
3724 sdyn
= bfd_get_linker_section (dynobj
, ".dynamic");
3726 if (htab
->elf
.dynamic_sections_created
)
3728 Elf64_External_Dyn
*dyncon
, *dynconend
;
3730 if (sdyn
== NULL
|| htab
->elf
.sgot
== NULL
)
3733 dyncon
= (Elf64_External_Dyn
*) sdyn
->contents
;
3734 dynconend
= (Elf64_External_Dyn
*) (sdyn
->contents
+ sdyn
->size
);
3735 for (; dyncon
< dynconend
; dyncon
++)
3737 Elf_Internal_Dyn dyn
;
3740 bfd_elf64_swap_dyn_in (dynobj
, dyncon
, &dyn
);
3748 s
= htab
->elf
.sgotplt
;
3749 dyn
.d_un
.d_ptr
= s
->output_section
->vma
+ s
->output_offset
;
3753 s
= htab
->elf
.srelplt
;
3754 dyn
.d_un
.d_ptr
= s
->output_section
->vma
+ s
->output_offset
;
3758 dyn
.d_un
.d_val
= htab
->elf
.srelplt
->size
+ htab
->elf
.irelplt
->size
;
3762 /* The procedure linkage table relocs (DT_JMPREL) should
3763 not be included in the overall relocs (DT_RELA).
3764 Therefore, we override the DT_RELASZ entry here to
3765 make it not include the JMPREL relocs. Since the
3766 linker script arranges for .rela.plt to follow all
3767 other relocation sections, we don't have to worry
3768 about changing the DT_RELA entry. */
3769 dyn
.d_un
.d_val
-= htab
->elf
.srelplt
->size
+ htab
->elf
.irelplt
->size
;
3773 bfd_elf64_swap_dyn_out (output_bfd
, &dyn
, dyncon
);
3776 /* Fill in the special first entry in the procedure linkage table. */
3777 if (htab
->elf
.splt
&& htab
->elf
.splt
->size
> 0)
3779 /* fill in blueprint for plt 0 entry */
3780 memcpy (htab
->elf
.splt
->contents
, elf_s390x_first_plt_entry
,
3781 PLT_FIRST_ENTRY_SIZE
);
3782 /* Fixup relative address to start of GOT */
3783 bfd_put_32 (output_bfd
,
3784 (htab
->elf
.sgotplt
->output_section
->vma
3785 + htab
->elf
.sgotplt
->output_offset
3786 - htab
->elf
.splt
->output_section
->vma
3787 - htab
->elf
.splt
->output_offset
- 6)/2,
3788 htab
->elf
.splt
->contents
+ 8);
3790 if (elf_section_data (htab
->elf
.splt
->output_section
) != NULL
)
3791 elf_section_data (htab
->elf
.splt
->output_section
)->this_hdr
.sh_entsize
3795 if (htab
->elf
.sgotplt
)
3797 /* Fill in the first three entries in the global offset table. */
3798 if (htab
->elf
.sgotplt
->size
> 0)
3800 bfd_put_64 (output_bfd
,
3801 (sdyn
== NULL
? (bfd_vma
) 0
3802 : sdyn
->output_section
->vma
+ sdyn
->output_offset
),
3803 htab
->elf
.sgotplt
->contents
);
3804 /* One entry for shared object struct ptr. */
3805 bfd_put_64 (output_bfd
, (bfd_vma
) 0, htab
->elf
.sgotplt
->contents
+ 8);
3806 /* One entry for _dl_runtime_resolve. */
3807 bfd_put_64 (output_bfd
, (bfd_vma
) 0, htab
->elf
.sgotplt
->contents
+ 16);
3810 elf_section_data (htab
->elf
.sgot
->output_section
)
3811 ->this_hdr
.sh_entsize
= 8;
3814 /* Finish dynamic symbol for local IFUNC symbols. */
3815 for (ibfd
= info
->input_bfds
; ibfd
!= NULL
; ibfd
= ibfd
->link
.next
)
3817 struct plt_entry
*local_plt
;
3818 Elf_Internal_Sym
*isym
;
3819 Elf_Internal_Shdr
*symtab_hdr
;
3821 symtab_hdr
= &elf_symtab_hdr (ibfd
);
3823 local_plt
= elf_s390_local_plt (ibfd
);
3824 if (local_plt
!= NULL
)
3825 for (i
= 0; i
< symtab_hdr
->sh_info
; i
++)
3827 if (local_plt
[i
].plt
.offset
!= (bfd_vma
) -1)
3829 asection
*sec
= local_plt
[i
].sec
;
3830 isym
= bfd_sym_from_r_symndx (&htab
->sym_cache
, ibfd
, i
);
3834 if (ELF_ST_TYPE (isym
->st_info
) == STT_GNU_IFUNC
)
3835 elf_s390_finish_ifunc_symbol (output_bfd
, info
, NULL
, htab
,
3836 local_plt
[i
].plt
.offset
,
3838 + sec
->output_section
->vma
3839 + sec
->output_offset
);
3848 /* Support for core dump NOTE sections. */
3851 elf_s390_grok_prstatus (bfd
*abfd
, Elf_Internal_Note
*note
)
3856 switch (note
->descsz
)
3861 case 336: /* sizeof(struct elf_prstatus) on s390x */
3863 elf_tdata (abfd
)->core
->signal
= bfd_get_16 (abfd
, note
->descdata
+ 12);
3866 elf_tdata (abfd
)->core
->lwpid
= bfd_get_32 (abfd
, note
->descdata
+ 32);
3874 /* Make a ".reg/999" section. */
3875 return _bfd_elfcore_make_pseudosection (abfd
, ".reg",
3876 size
, note
->descpos
+ offset
);
3880 elf_s390_grok_psinfo (bfd
*abfd
, Elf_Internal_Note
*note
)
3882 switch (note
->descsz
)
3887 case 136: /* sizeof(struct elf_prpsinfo) on s390x */
3888 elf_tdata (abfd
)->core
->pid
3889 = bfd_get_32 (abfd
, note
->descdata
+ 24);
3890 elf_tdata (abfd
)->core
->program
3891 = _bfd_elfcore_strndup (abfd
, note
->descdata
+ 40, 16);
3892 elf_tdata (abfd
)->core
->command
3893 = _bfd_elfcore_strndup (abfd
, note
->descdata
+ 56, 80);
3896 /* Note that for some reason, a spurious space is tacked
3897 onto the end of the args in some (at least one anyway)
3898 implementations, so strip it off if it exists. */
3901 char *command
= elf_tdata (abfd
)->core
->command
;
3902 int n
= strlen (command
);
3904 if (0 < n
&& command
[n
- 1] == ' ')
3905 command
[n
- 1] = '\0';
3912 elf_s390_write_core_note (bfd
*abfd
, char *buf
, int *bufsiz
,
3924 char data
[136] = { 0 };
3925 const char *fname
, *psargs
;
3927 va_start (ap
, note_type
);
3928 fname
= va_arg (ap
, const char *);
3929 psargs
= va_arg (ap
, const char *);
3932 strncpy (data
+ 40, fname
, 16);
3933 strncpy (data
+ 56, psargs
, 80);
3934 return elfcore_write_note (abfd
, buf
, bufsiz
, "CORE", note_type
,
3935 &data
, sizeof (data
));
3940 char data
[336] = { 0 };
3945 va_start (ap
, note_type
);
3946 pid
= va_arg (ap
, long);
3947 cursig
= va_arg (ap
, int);
3948 gregs
= va_arg (ap
, const void *);
3951 bfd_put_16 (abfd
, cursig
, data
+ 12);
3952 bfd_put_32 (abfd
, pid
, data
+ 32);
3953 memcpy (data
+ 112, gregs
, 216);
3954 return elfcore_write_note (abfd
, buf
, bufsiz
, "CORE", note_type
,
3955 &data
, sizeof (data
));
3961 /* Return address for Ith PLT stub in section PLT, for relocation REL
3962 or (bfd_vma) -1 if it should not be included. */
3965 elf_s390_plt_sym_val (bfd_vma i
, const asection
*plt
,
3966 const arelent
*rel ATTRIBUTE_UNUSED
)
3968 return plt
->vma
+ PLT_FIRST_ENTRY_SIZE
+ i
* PLT_ENTRY_SIZE
;
3971 /* Merge backend specific data from an object file to the output
3972 object file when linking. */
3975 elf64_s390_merge_private_bfd_data (bfd
*ibfd
, bfd
*obfd
)
3977 if (!is_s390_elf (ibfd
) || !is_s390_elf (obfd
))
3980 if (!elf_s390_merge_obj_attributes (ibfd
, obfd
))
3986 /* Why was the hash table entry size definition changed from
3987 ARCH_SIZE/8 to 4? This breaks the 64 bit dynamic linker and
3988 this is the only reason for the s390_elf64_size_info structure. */
3990 const struct elf_size_info s390_elf64_size_info
=
3992 sizeof (Elf64_External_Ehdr
),
3993 sizeof (Elf64_External_Phdr
),
3994 sizeof (Elf64_External_Shdr
),
3995 sizeof (Elf64_External_Rel
),
3996 sizeof (Elf64_External_Rela
),
3997 sizeof (Elf64_External_Sym
),
3998 sizeof (Elf64_External_Dyn
),
3999 sizeof (Elf_External_Note
),
4000 8, /* hash-table entry size. */
4001 1, /* internal relocations per external relocations. */
4002 64, /* arch_size. */
4003 3, /* log_file_align. */
4004 ELFCLASS64
, EV_CURRENT
,
4005 bfd_elf64_write_out_phdrs
,
4006 bfd_elf64_write_shdrs_and_ehdr
,
4007 bfd_elf64_checksum_contents
,
4008 bfd_elf64_write_relocs
,
4009 bfd_elf64_swap_symbol_in
,
4010 bfd_elf64_swap_symbol_out
,
4011 bfd_elf64_slurp_reloc_table
,
4012 bfd_elf64_slurp_symbol_table
,
4013 bfd_elf64_swap_dyn_in
,
4014 bfd_elf64_swap_dyn_out
,
4015 bfd_elf64_swap_reloc_in
,
4016 bfd_elf64_swap_reloc_out
,
4017 bfd_elf64_swap_reloca_in
,
4018 bfd_elf64_swap_reloca_out
4021 #define TARGET_BIG_SYM s390_elf64_vec
4022 #define TARGET_BIG_NAME "elf64-s390"
4023 #define ELF_ARCH bfd_arch_s390
4024 #define ELF_TARGET_ID S390_ELF_DATA
4025 #define ELF_MACHINE_CODE EM_S390
4026 #define ELF_MACHINE_ALT1 EM_S390_OLD
4027 #define ELF_MAXPAGESIZE 0x1000
4029 #define elf_backend_size_info s390_elf64_size_info
4031 #define elf_backend_can_gc_sections 1
4032 #define elf_backend_can_refcount 1
4033 #define elf_backend_want_got_plt 1
4034 #define elf_backend_plt_readonly 1
4035 #define elf_backend_want_plt_sym 0
4036 #define elf_backend_got_header_size 24
4037 #define elf_backend_rela_normal 1
4039 #define elf_info_to_howto elf_s390_info_to_howto
4041 #define bfd_elf64_bfd_is_local_label_name elf_s390_is_local_label_name
4042 #define bfd_elf64_bfd_link_hash_table_create elf_s390_link_hash_table_create
4043 #define bfd_elf64_bfd_reloc_type_lookup elf_s390_reloc_type_lookup
4044 #define bfd_elf64_bfd_reloc_name_lookup elf_s390_reloc_name_lookup
4045 #define bfd_elf64_bfd_merge_private_bfd_data elf64_s390_merge_private_bfd_data
4047 #define elf_backend_adjust_dynamic_symbol elf_s390_adjust_dynamic_symbol
4048 #define elf_backend_check_relocs elf_s390_check_relocs
4049 #define elf_backend_copy_indirect_symbol elf_s390_copy_indirect_symbol
4050 #define elf_backend_create_dynamic_sections elf_s390_create_dynamic_sections
4051 #define elf_backend_finish_dynamic_sections elf_s390_finish_dynamic_sections
4052 #define elf_backend_finish_dynamic_symbol elf_s390_finish_dynamic_symbol
4053 #define elf_backend_gc_mark_hook elf_s390_gc_mark_hook
4054 #define elf_backend_gc_sweep_hook elf_s390_gc_sweep_hook
4055 #define elf_backend_reloc_type_class elf_s390_reloc_type_class
4056 #define elf_backend_relocate_section elf_s390_relocate_section
4057 #define elf_backend_size_dynamic_sections elf_s390_size_dynamic_sections
4058 #define elf_backend_init_index_section _bfd_elf_init_1_index_section
4059 #define elf_backend_grok_prstatus elf_s390_grok_prstatus
4060 #define elf_backend_grok_psinfo elf_s390_grok_psinfo
4061 #define elf_backend_write_core_note elf_s390_write_core_note
4062 #define elf_backend_plt_sym_val elf_s390_plt_sym_val
4063 #define elf_backend_add_symbol_hook elf_s390_add_symbol_hook
4064 #define elf_backend_sort_relocs_p elf_s390_elf_sort_relocs_p
4066 #define bfd_elf64_mkobject elf_s390_mkobject
4067 #define elf_backend_object_p elf_s390_object_p
4069 #include "elf64-target.h"