1 /* IBM S/390-specific support for 64-bit ELF
2 Copyright 2000, 2001, 2002, 2003 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 2 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., 59 Temple Place - Suite 330, Boston, MA
28 static reloc_howto_type *elf_s390_reloc_type_lookup
29 PARAMS ((bfd *, bfd_reloc_code_real_type));
30 static void elf_s390_info_to_howto
31 PARAMS ((bfd *, arelent *, Elf_Internal_Rela *));
32 static bfd_boolean elf_s390_is_local_label_name
33 PARAMS ((bfd *, const char *));
34 static struct bfd_hash_entry *link_hash_newfunc
35 PARAMS ((struct bfd_hash_entry *, struct bfd_hash_table *, const char *));
36 static struct bfd_link_hash_table *elf_s390_link_hash_table_create
38 static bfd_boolean create_got_section
39 PARAMS((bfd *, struct bfd_link_info *));
40 static bfd_boolean elf_s390_create_dynamic_sections
41 PARAMS((bfd *, struct bfd_link_info *));
42 static void elf_s390_copy_indirect_symbol
43 PARAMS ((const struct elf_backend_data *, struct elf_link_hash_entry *,
44 struct elf_link_hash_entry *));
45 static bfd_boolean elf_s390_check_relocs
46 PARAMS ((bfd *, struct bfd_link_info *, asection *,
47 const Elf_Internal_Rela *));
48 static asection *elf_s390_gc_mark_hook
49 PARAMS ((asection *, struct bfd_link_info *, Elf_Internal_Rela *,
50 struct elf_link_hash_entry *, Elf_Internal_Sym *));
51 static bfd_boolean elf_s390_gc_sweep_hook
52 PARAMS ((bfd *, struct bfd_link_info *, asection *,
53 const Elf_Internal_Rela *));
54 struct elf_s390_link_hash_entry;
55 static void elf_s390_adjust_gotplt
56 PARAMS ((struct elf_s390_link_hash_entry *));
57 static bfd_boolean elf_s390_adjust_dynamic_symbol
58 PARAMS ((struct bfd_link_info *, struct elf_link_hash_entry *));
59 static bfd_boolean allocate_dynrelocs
60 PARAMS ((struct elf_link_hash_entry *, PTR));
61 static bfd_boolean readonly_dynrelocs
62 PARAMS ((struct elf_link_hash_entry *, PTR));
63 static bfd_boolean elf_s390_size_dynamic_sections
64 PARAMS ((bfd *, struct bfd_link_info *));
65 static bfd_boolean elf_s390_relocate_section
66 PARAMS ((bfd *, struct bfd_link_info *, bfd *, asection *, bfd_byte *,
67 Elf_Internal_Rela *, Elf_Internal_Sym *, asection **));
68 static bfd_boolean elf_s390_finish_dynamic_symbol
69 PARAMS ((bfd *, struct bfd_link_info *, struct elf_link_hash_entry *,
71 static enum elf_reloc_type_class elf_s390_reloc_type_class
72 PARAMS ((const Elf_Internal_Rela *));
73 static bfd_boolean elf_s390_finish_dynamic_sections
74 PARAMS ((bfd *, struct bfd_link_info *));
75 static bfd_boolean elf_s390_mkobject
77 static bfd_boolean elf_s390_object_p
79 static int elf_s390_tls_transition
80 PARAMS ((struct bfd_link_info *, int, int));
81 static bfd_reloc_status_type s390_tls_reloc
82 PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **));
83 static bfd_vma dtpoff_base
84 PARAMS ((struct bfd_link_info *));
86 PARAMS ((struct bfd_link_info *, bfd_vma));
87 static void invalid_tls_insn
88 PARAMS ((bfd *, asection *, Elf_Internal_Rela *));
89 static bfd_reloc_status_type s390_elf_ldisp_reloc
90 PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **));
94 /* In case we're on a 32-bit machine, construct a 64-bit "-1" value
95 from smaller values. Start with zero, widen, *then* decrement. */
96 #define MINUS_ONE (((bfd_vma)0) - 1)
98 /* The relocation "howto" table. */
99 static reloc_howto_type elf_howto_table[] =
101 HOWTO (R_390_NONE, /* type */
103 0, /* size (0 = byte, 1 = short, 2 = long) */
105 FALSE, /* pc_relative */
107 complain_overflow_dont, /* complain_on_overflow */
108 bfd_elf_generic_reloc, /* special_function */
109 "R_390_NONE", /* name */
110 FALSE, /* partial_inplace */
113 FALSE), /* pcrel_offset */
115 HOWTO(R_390_8, 0, 0, 8, FALSE, 0, complain_overflow_bitfield,
116 bfd_elf_generic_reloc, "R_390_8", FALSE, 0,0x000000ff, FALSE),
117 HOWTO(R_390_12, 0, 1, 12, FALSE, 0, complain_overflow_dont,
118 bfd_elf_generic_reloc, "R_390_12", FALSE, 0,0x00000fff, FALSE),
119 HOWTO(R_390_16, 0, 1, 16, FALSE, 0, complain_overflow_bitfield,
120 bfd_elf_generic_reloc, "R_390_16", FALSE, 0,0x0000ffff, FALSE),
121 HOWTO(R_390_32, 0, 2, 32, FALSE, 0, complain_overflow_bitfield,
122 bfd_elf_generic_reloc, "R_390_32", FALSE, 0,0xffffffff, FALSE),
123 HOWTO(R_390_PC32, 0, 2, 32, TRUE, 0, complain_overflow_bitfield,
124 bfd_elf_generic_reloc, "R_390_PC32", FALSE, 0,0xffffffff, TRUE),
125 HOWTO(R_390_GOT12, 0, 1, 12, FALSE, 0, complain_overflow_bitfield,
126 bfd_elf_generic_reloc, "R_390_GOT12", FALSE, 0,0x00000fff, FALSE),
127 HOWTO(R_390_GOT32, 0, 2, 32, FALSE, 0, complain_overflow_bitfield,
128 bfd_elf_generic_reloc, "R_390_GOT32", FALSE, 0,0xffffffff, FALSE),
129 HOWTO(R_390_PLT32, 0, 2, 32, TRUE, 0, complain_overflow_bitfield,
130 bfd_elf_generic_reloc, "R_390_PLT32", FALSE, 0,0xffffffff, TRUE),
131 HOWTO(R_390_COPY, 0, 4, 64, FALSE, 0, complain_overflow_bitfield,
132 bfd_elf_generic_reloc, "R_390_COPY", FALSE, 0,MINUS_ONE, FALSE),
133 HOWTO(R_390_GLOB_DAT, 0, 4, 64, FALSE, 0, complain_overflow_bitfield,
134 bfd_elf_generic_reloc, "R_390_GLOB_DAT", FALSE, 0,MINUS_ONE, FALSE),
135 HOWTO(R_390_JMP_SLOT, 0, 4, 64, FALSE, 0, complain_overflow_bitfield,
136 bfd_elf_generic_reloc, "R_390_JMP_SLOT", FALSE, 0,MINUS_ONE, FALSE),
137 HOWTO(R_390_RELATIVE, 0, 4, 64, TRUE, 0, complain_overflow_bitfield,
138 bfd_elf_generic_reloc, "R_390_RELATIVE", FALSE, 0,MINUS_ONE, FALSE),
139 HOWTO(R_390_GOTOFF32, 0, 2, 32, FALSE, 0, complain_overflow_bitfield,
140 bfd_elf_generic_reloc, "R_390_GOTOFF32", FALSE, 0,MINUS_ONE, FALSE),
141 HOWTO(R_390_GOTPC, 0, 4, 64, TRUE, 0, complain_overflow_bitfield,
142 bfd_elf_generic_reloc, "R_390_GOTPC", FALSE, 0,MINUS_ONE, TRUE),
143 HOWTO(R_390_GOT16, 0, 1, 16, FALSE, 0, complain_overflow_bitfield,
144 bfd_elf_generic_reloc, "R_390_GOT16", FALSE, 0,0x0000ffff, FALSE),
145 HOWTO(R_390_PC16, 0, 1, 16, TRUE, 0, complain_overflow_bitfield,
146 bfd_elf_generic_reloc, "R_390_PC16", FALSE, 0,0x0000ffff, TRUE),
147 HOWTO(R_390_PC16DBL, 1, 1, 16, TRUE, 0, complain_overflow_bitfield,
148 bfd_elf_generic_reloc, "R_390_PC16DBL", FALSE, 0,0x0000ffff, TRUE),
149 HOWTO(R_390_PLT16DBL, 1, 1, 16, TRUE, 0, complain_overflow_bitfield,
150 bfd_elf_generic_reloc, "R_390_PLT16DBL", FALSE, 0,0x0000ffff, TRUE),
151 HOWTO(R_390_PC32DBL, 1, 2, 32, TRUE, 0, complain_overflow_bitfield,
152 bfd_elf_generic_reloc, "R_390_PC32DBL", FALSE, 0,0xffffffff, TRUE),
153 HOWTO(R_390_PLT32DBL, 1, 2, 32, TRUE, 0, complain_overflow_bitfield,
154 bfd_elf_generic_reloc, "R_390_PLT32DBL", FALSE, 0,0xffffffff, TRUE),
155 HOWTO(R_390_GOTPCDBL, 1, 2, 32, TRUE, 0, complain_overflow_bitfield,
156 bfd_elf_generic_reloc, "R_390_GOTPCDBL", FALSE, 0,MINUS_ONE, TRUE),
157 HOWTO(R_390_64, 0, 4, 64, FALSE, 0, complain_overflow_bitfield,
158 bfd_elf_generic_reloc, "R_390_64", FALSE, 0,MINUS_ONE, FALSE),
159 HOWTO(R_390_PC64, 0, 4, 64, TRUE, 0, complain_overflow_bitfield,
160 bfd_elf_generic_reloc, "R_390_PC64", FALSE, 0,MINUS_ONE, TRUE),
161 HOWTO(R_390_GOT64, 0, 4, 64, FALSE, 0, complain_overflow_bitfield,
162 bfd_elf_generic_reloc, "R_390_GOT64", FALSE, 0,MINUS_ONE, FALSE),
163 HOWTO(R_390_PLT64, 0, 4, 64, TRUE, 0, complain_overflow_bitfield,
164 bfd_elf_generic_reloc, "R_390_PLT64", FALSE, 0,MINUS_ONE, TRUE),
165 HOWTO(R_390_GOTENT, 1, 2, 32, TRUE, 0, complain_overflow_bitfield,
166 bfd_elf_generic_reloc, "R_390_GOTENT", FALSE, 0,MINUS_ONE, TRUE),
167 HOWTO(R_390_GOTOFF16, 0, 1, 16, FALSE, 0, complain_overflow_bitfield,
168 bfd_elf_generic_reloc, "R_390_GOTOFF16", FALSE, 0,0x0000ffff, FALSE),
169 HOWTO(R_390_GOTOFF64, 0, 4, 64, FALSE, 0, complain_overflow_bitfield,
170 bfd_elf_generic_reloc, "R_390_GOTOFF64", FALSE, 0,MINUS_ONE, FALSE),
171 HOWTO(R_390_GOTPLT12, 0, 1, 12, FALSE, 0, complain_overflow_dont,
172 bfd_elf_generic_reloc, "R_390_GOTPLT12", FALSE, 0,0x00000fff, FALSE),
173 HOWTO(R_390_GOTPLT16, 0, 1, 16, FALSE, 0, complain_overflow_bitfield,
174 bfd_elf_generic_reloc, "R_390_GOTPLT16", FALSE, 0,0x0000ffff, FALSE),
175 HOWTO(R_390_GOTPLT32, 0, 2, 32, FALSE, 0, complain_overflow_bitfield,
176 bfd_elf_generic_reloc, "R_390_GOTPLT32", FALSE, 0,0xffffffff, FALSE),
177 HOWTO(R_390_GOTPLT64, 0, 4, 64, FALSE, 0, complain_overflow_bitfield,
178 bfd_elf_generic_reloc, "R_390_GOTPLT64", FALSE, 0,MINUS_ONE, FALSE),
179 HOWTO(R_390_GOTPLTENT, 1, 2, 32, TRUE, 0, complain_overflow_bitfield,
180 bfd_elf_generic_reloc, "R_390_GOTPLTENT",FALSE, 0,MINUS_ONE, TRUE),
181 HOWTO(R_390_PLTOFF16, 0, 1, 16, FALSE, 0, complain_overflow_bitfield,
182 bfd_elf_generic_reloc, "R_390_PLTOFF16", FALSE, 0,0x0000ffff, FALSE),
183 HOWTO(R_390_PLTOFF32, 0, 2, 32, FALSE, 0, complain_overflow_bitfield,
184 bfd_elf_generic_reloc, "R_390_PLTOFF32", FALSE, 0,0xffffffff, FALSE),
185 HOWTO(R_390_PLTOFF64, 0, 4, 64, FALSE, 0, complain_overflow_bitfield,
186 bfd_elf_generic_reloc, "R_390_PLTOFF64", FALSE, 0,MINUS_ONE, FALSE),
187 HOWTO(R_390_TLS_LOAD, 0, 0, 0, FALSE, 0, complain_overflow_dont,
188 s390_tls_reloc, "R_390_TLS_LOAD", FALSE, 0, 0, FALSE),
189 HOWTO(R_390_TLS_GDCALL, 0, 0, 0, FALSE, 0, complain_overflow_dont,
190 s390_tls_reloc, "R_390_TLS_GDCALL", FALSE, 0, 0, FALSE),
191 HOWTO(R_390_TLS_LDCALL, 0, 0, 0, FALSE, 0, complain_overflow_dont,
192 s390_tls_reloc, "R_390_TLS_LDCALL", FALSE, 0, 0, FALSE),
193 EMPTY_HOWTO (R_390_TLS_GD32), /* Empty entry for R_390_TLS_GD32. */
194 HOWTO(R_390_TLS_GD64, 0, 4, 64, FALSE, 0, complain_overflow_bitfield,
195 bfd_elf_generic_reloc, "R_390_TLS_GD64", FALSE, 0, MINUS_ONE, FALSE),
196 HOWTO(R_390_TLS_GOTIE12, 0, 1, 12, FALSE, 0, complain_overflow_dont,
197 bfd_elf_generic_reloc, "R_390_TLS_GOTIE12", FALSE, 0, 0x00000fff, FALSE),
198 EMPTY_HOWTO (R_390_TLS_GOTIE32), /* Empty entry for R_390_TLS_GOTIE32. */
199 HOWTO(R_390_TLS_GOTIE64, 0, 4, 64, FALSE, 0, complain_overflow_bitfield,
200 bfd_elf_generic_reloc, "R_390_TLS_GOTIE64", FALSE, 0, MINUS_ONE, FALSE),
201 EMPTY_HOWTO (R_390_TLS_LDM32), /* Empty entry for R_390_TLS_LDM32. */
202 HOWTO(R_390_TLS_LDM64, 0, 4, 64, FALSE, 0, complain_overflow_bitfield,
203 bfd_elf_generic_reloc, "R_390_TLS_LDM64", FALSE, 0, MINUS_ONE, FALSE),
204 EMPTY_HOWTO (R_390_TLS_IE32), /* Empty entry for R_390_TLS_IE32. */
205 HOWTO(R_390_TLS_IE64, 0, 4, 64, FALSE, 0, complain_overflow_bitfield,
206 bfd_elf_generic_reloc, "R_390_TLS_IE64", FALSE, 0, MINUS_ONE, FALSE),
207 HOWTO(R_390_TLS_IEENT, 1, 2, 32, TRUE, 0, complain_overflow_bitfield,
208 bfd_elf_generic_reloc, "R_390_TLS_IEENT", FALSE, 0, MINUS_ONE, TRUE),
209 EMPTY_HOWTO (R_390_TLS_LE32), /* Empty entry for R_390_TLS_LE32. */
210 HOWTO(R_390_TLS_LE64, 0, 2, 32, FALSE, 0, complain_overflow_bitfield,
211 bfd_elf_generic_reloc, "R_390_TLS_LE64", FALSE, 0, MINUS_ONE, FALSE),
212 EMPTY_HOWTO (R_390_TLS_LDO32), /* Empty entry for R_390_TLS_LDO32. */
213 HOWTO(R_390_TLS_LDO64, 0, 4, 64, FALSE, 0, complain_overflow_bitfield,
214 bfd_elf_generic_reloc, "R_390_TLS_LDO64", FALSE, 0, MINUS_ONE, FALSE),
215 HOWTO(R_390_TLS_DTPMOD, 0, 4, 64, FALSE, 0, complain_overflow_bitfield,
216 bfd_elf_generic_reloc, "R_390_TLS_DTPMOD", FALSE, 0, MINUS_ONE, FALSE),
217 HOWTO(R_390_TLS_DTPOFF, 0, 4, 64, FALSE, 0, complain_overflow_bitfield,
218 bfd_elf_generic_reloc, "R_390_TLS_DTPOFF", FALSE, 0, MINUS_ONE, FALSE),
219 HOWTO(R_390_TLS_TPOFF, 0, 4, 64, FALSE, 0, complain_overflow_bitfield,
220 bfd_elf_generic_reloc, "R_390_TLS_TPOFF", FALSE, 0, MINUS_ONE, FALSE),
221 HOWTO(R_390_20, 0, 2, 20, FALSE, 8, complain_overflow_dont,
222 s390_elf_ldisp_reloc, "R_390_20", FALSE, 0,0x0fffff00, FALSE),
223 HOWTO(R_390_GOT20, 0, 2, 20, FALSE, 8, complain_overflow_dont,
224 s390_elf_ldisp_reloc, "R_390_GOT20", FALSE, 0,0x0fffff00, FALSE),
225 HOWTO(R_390_GOTPLT20, 0, 2, 20, FALSE, 8, complain_overflow_dont,
226 s390_elf_ldisp_reloc, "R_390_GOTPLT20", FALSE, 0,0x0fffff00, FALSE),
227 HOWTO(R_390_TLS_GOTIE20, 0, 2, 20, FALSE, 8, complain_overflow_dont,
228 s390_elf_ldisp_reloc, "R_390_TLS_GOTIE20", FALSE, 0,0x0fffff00, FALSE),
231 /* GNU extension to record C++ vtable hierarchy. */
232 static reloc_howto_type elf64_s390_vtinherit_howto =
233 HOWTO (R_390_GNU_VTINHERIT, 0,4,0,FALSE,0,complain_overflow_dont, NULL, "R_390_GNU_VTINHERIT", FALSE,0, 0, FALSE);
234 static reloc_howto_type elf64_s390_vtentry_howto =
235 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);
237 static reloc_howto_type *
238 elf_s390_reloc_type_lookup (abfd, code)
239 bfd *abfd ATTRIBUTE_UNUSED;
240 bfd_reloc_code_real_type code;
245 return &elf_howto_table[(int) R_390_NONE];
247 return &elf_howto_table[(int) R_390_8];
248 case BFD_RELOC_390_12:
249 return &elf_howto_table[(int) R_390_12];
251 return &elf_howto_table[(int) R_390_16];
253 return &elf_howto_table[(int) R_390_32];
255 return &elf_howto_table[(int) R_390_32];
256 case BFD_RELOC_32_PCREL:
257 return &elf_howto_table[(int) R_390_PC32];
258 case BFD_RELOC_390_GOT12:
259 return &elf_howto_table[(int) R_390_GOT12];
260 case BFD_RELOC_32_GOT_PCREL:
261 return &elf_howto_table[(int) R_390_GOT32];
262 case BFD_RELOC_390_PLT32:
263 return &elf_howto_table[(int) R_390_PLT32];
264 case BFD_RELOC_390_COPY:
265 return &elf_howto_table[(int) R_390_COPY];
266 case BFD_RELOC_390_GLOB_DAT:
267 return &elf_howto_table[(int) R_390_GLOB_DAT];
268 case BFD_RELOC_390_JMP_SLOT:
269 return &elf_howto_table[(int) R_390_JMP_SLOT];
270 case BFD_RELOC_390_RELATIVE:
271 return &elf_howto_table[(int) R_390_RELATIVE];
272 case BFD_RELOC_32_GOTOFF:
273 return &elf_howto_table[(int) R_390_GOTOFF32];
274 case BFD_RELOC_390_GOTPC:
275 return &elf_howto_table[(int) R_390_GOTPC];
276 case BFD_RELOC_390_GOT16:
277 return &elf_howto_table[(int) R_390_GOT16];
278 case BFD_RELOC_16_PCREL:
279 return &elf_howto_table[(int) R_390_PC16];
280 case BFD_RELOC_390_PC16DBL:
281 return &elf_howto_table[(int) R_390_PC16DBL];
282 case BFD_RELOC_390_PLT16DBL:
283 return &elf_howto_table[(int) R_390_PLT16DBL];
284 case BFD_RELOC_390_PC32DBL:
285 return &elf_howto_table[(int) R_390_PC32DBL];
286 case BFD_RELOC_390_PLT32DBL:
287 return &elf_howto_table[(int) R_390_PLT32DBL];
288 case BFD_RELOC_390_GOTPCDBL:
289 return &elf_howto_table[(int) R_390_GOTPCDBL];
291 return &elf_howto_table[(int) R_390_64];
292 case BFD_RELOC_64_PCREL:
293 return &elf_howto_table[(int) R_390_PC64];
294 case BFD_RELOC_390_GOT64:
295 return &elf_howto_table[(int) R_390_GOT64];
296 case BFD_RELOC_390_PLT64:
297 return &elf_howto_table[(int) R_390_PLT64];
298 case BFD_RELOC_390_GOTENT:
299 return &elf_howto_table[(int) R_390_GOTENT];
300 case BFD_RELOC_16_GOTOFF:
301 return &elf_howto_table[(int) R_390_GOTOFF16];
302 case BFD_RELOC_390_GOTOFF64:
303 return &elf_howto_table[(int) R_390_GOTOFF64];
304 case BFD_RELOC_390_GOTPLT12:
305 return &elf_howto_table[(int) R_390_GOTPLT12];
306 case BFD_RELOC_390_GOTPLT16:
307 return &elf_howto_table[(int) R_390_GOTPLT16];
308 case BFD_RELOC_390_GOTPLT32:
309 return &elf_howto_table[(int) R_390_GOTPLT32];
310 case BFD_RELOC_390_GOTPLT64:
311 return &elf_howto_table[(int) R_390_GOTPLT64];
312 case BFD_RELOC_390_GOTPLTENT:
313 return &elf_howto_table[(int) R_390_GOTPLTENT];
314 case BFD_RELOC_390_PLTOFF16:
315 return &elf_howto_table[(int) R_390_PLTOFF16];
316 case BFD_RELOC_390_PLTOFF32:
317 return &elf_howto_table[(int) R_390_PLTOFF32];
318 case BFD_RELOC_390_PLTOFF64:
319 return &elf_howto_table[(int) R_390_PLTOFF64];
320 case BFD_RELOC_390_TLS_LOAD:
321 return &elf_howto_table[(int) R_390_TLS_LOAD];
322 case BFD_RELOC_390_TLS_GDCALL:
323 return &elf_howto_table[(int) R_390_TLS_GDCALL];
324 case BFD_RELOC_390_TLS_LDCALL:
325 return &elf_howto_table[(int) R_390_TLS_LDCALL];
326 case BFD_RELOC_390_TLS_GD64:
327 return &elf_howto_table[(int) R_390_TLS_GD64];
328 case BFD_RELOC_390_TLS_GOTIE12:
329 return &elf_howto_table[(int) R_390_TLS_GOTIE12];
330 case BFD_RELOC_390_TLS_GOTIE64:
331 return &elf_howto_table[(int) R_390_TLS_GOTIE64];
332 case BFD_RELOC_390_TLS_LDM64:
333 return &elf_howto_table[(int) R_390_TLS_LDM64];
334 case BFD_RELOC_390_TLS_IE64:
335 return &elf_howto_table[(int) R_390_TLS_IE64];
336 case BFD_RELOC_390_TLS_IEENT:
337 return &elf_howto_table[(int) R_390_TLS_IEENT];
338 case BFD_RELOC_390_TLS_LE64:
339 return &elf_howto_table[(int) R_390_TLS_LE64];
340 case BFD_RELOC_390_TLS_LDO64:
341 return &elf_howto_table[(int) R_390_TLS_LDO64];
342 case BFD_RELOC_390_TLS_DTPMOD:
343 return &elf_howto_table[(int) R_390_TLS_DTPMOD];
344 case BFD_RELOC_390_TLS_DTPOFF:
345 return &elf_howto_table[(int) R_390_TLS_DTPOFF];
346 case BFD_RELOC_390_TLS_TPOFF:
347 return &elf_howto_table[(int) R_390_TLS_TPOFF];
348 case BFD_RELOC_390_20:
349 return &elf_howto_table[(int) R_390_20];
350 case BFD_RELOC_390_GOT20:
351 return &elf_howto_table[(int) R_390_GOT20];
352 case BFD_RELOC_390_GOTPLT20:
353 return &elf_howto_table[(int) R_390_GOTPLT20];
354 case BFD_RELOC_390_TLS_GOTIE20:
355 return &elf_howto_table[(int) R_390_TLS_GOTIE20];
356 case BFD_RELOC_VTABLE_INHERIT:
357 return &elf64_s390_vtinherit_howto;
358 case BFD_RELOC_VTABLE_ENTRY:
359 return &elf64_s390_vtentry_howto;
366 /* We need to use ELF64_R_TYPE so we have our own copy of this function,
367 and elf64-s390.c has its own copy. */
370 elf_s390_info_to_howto (abfd, cache_ptr, dst)
371 bfd *abfd ATTRIBUTE_UNUSED;
373 Elf_Internal_Rela *dst;
375 switch (ELF64_R_TYPE(dst->r_info))
377 case R_390_GNU_VTINHERIT:
378 cache_ptr->howto = &elf64_s390_vtinherit_howto;
381 case R_390_GNU_VTENTRY:
382 cache_ptr->howto = &elf64_s390_vtentry_howto;
386 BFD_ASSERT (ELF64_R_TYPE(dst->r_info) < (unsigned int) R_390_max);
387 cache_ptr->howto = &elf_howto_table[ELF64_R_TYPE(dst->r_info)];
391 /* A relocation function which doesn't do anything. */
392 static bfd_reloc_status_type
393 s390_tls_reloc (abfd, reloc_entry, symbol, data, input_section,
394 output_bfd, error_message)
395 bfd *abfd ATTRIBUTE_UNUSED;
396 arelent *reloc_entry;
397 asymbol *symbol ATTRIBUTE_UNUSED;
398 PTR data ATTRIBUTE_UNUSED;
399 asection *input_section;
401 char **error_message ATTRIBUTE_UNUSED;
404 reloc_entry->address += input_section->output_offset;
408 /* Handle the large displacement relocs. */
409 static bfd_reloc_status_type
410 s390_elf_ldisp_reloc (abfd, reloc_entry, symbol, data, input_section,
411 output_bfd, error_message)
413 arelent *reloc_entry;
416 asection *input_section;
418 char **error_message ATTRIBUTE_UNUSED;
420 reloc_howto_type *howto = reloc_entry->howto;
424 if (output_bfd != (bfd *) NULL
425 && (symbol->flags & BSF_SECTION_SYM) == 0
426 && (! howto->partial_inplace
427 || reloc_entry->addend == 0))
429 reloc_entry->address += input_section->output_offset;
432 if (output_bfd != NULL)
433 return bfd_reloc_continue;
435 if (reloc_entry->address > input_section->_cooked_size)
436 return bfd_reloc_outofrange;
438 relocation = (symbol->value
439 + symbol->section->output_section->vma
440 + symbol->section->output_offset);
441 relocation += reloc_entry->addend;
442 if (howto->pc_relative)
444 relocation -= (input_section->output_section->vma
445 + input_section->output_offset);
446 relocation -= reloc_entry->address;
449 insn = bfd_get_32 (abfd, (bfd_byte *) data + reloc_entry->address);
450 insn |= (relocation & 0xfff) << 16 | (relocation & 0xff000) >> 4;
451 bfd_put_32 (abfd, insn, (bfd_byte *) data + reloc_entry->address);
453 if ((bfd_signed_vma) relocation < - 0x80000
454 || (bfd_signed_vma) relocation > 0x7ffff)
455 return bfd_reloc_overflow;
461 elf_s390_is_local_label_name (abfd, name)
465 if (name[0] == '.' && (name[1] == 'X' || name[1] == 'L'))
468 return _bfd_elf_is_local_label_name (abfd, name);
471 /* Functions for the 390 ELF linker. */
473 /* The name of the dynamic interpreter. This is put in the .interp
476 #define ELF_DYNAMIC_INTERPRETER "/usr/lib/ld.so.1"
478 /* If ELIMINATE_COPY_RELOCS is non-zero, the linker will try to avoid
479 copying dynamic variables from a shared lib into an app's dynbss
480 section, and instead use a dynamic relocation to point into the
482 #define ELIMINATE_COPY_RELOCS 1
484 /* The size in bytes of the first entry in the procedure linkage table. */
485 #define PLT_FIRST_ENTRY_SIZE 32
486 /* The size in bytes of an entry in the procedure linkage table. */
487 #define PLT_ENTRY_SIZE 32
489 #define GOT_ENTRY_SIZE 8
491 /* The first three entries in a procedure linkage table are reserved,
492 and the initial contents are unimportant (we zero them out).
493 Subsequent entries look like this. See the SVR4 ABI 386
494 supplement to see how this works. */
496 /* For the s390, simple addr offset can only be 0 - 4096.
497 To use the full 16777216 TB address space, several instructions
498 are needed to load an address in a register and execute
499 a branch( or just saving the address)
501 Furthermore, only r 0 and 1 are free to use!!! */
503 /* The first 3 words in the GOT are then reserved.
504 Word 0 is the address of the dynamic table.
505 Word 1 is a pointer to a structure describing the object
506 Word 2 is used to point to the loader entry address.
508 The code for PLT entries looks like this:
510 The GOT holds the address in the PLT to be executed.
511 The loader then gets:
512 24(15) = Pointer to the structure describing the object.
513 28(15) = Offset in symbol table
514 The loader must then find the module where the function is
515 and insert the address in the GOT.
517 PLT1: LARL 1,<fn>@GOTENT # 6 bytes Load address of GOT entry in r1
518 LG 1,0(1) # 6 bytes Load address from GOT in r1
519 BCR 15,1 # 2 bytes Jump to address
520 RET1: BASR 1,0 # 2 bytes Return from GOT 1st time
521 LGF 1,12(1) # 6 bytes Load offset in symbl table in r1
522 BRCL 15,-x # 6 bytes Jump to start of PLT
523 .long ? # 4 bytes offset into symbol table
525 Total = 32 bytes per PLT entry
526 Fixup at offset 2: relative address to GOT entry
527 Fixup at offset 22: relative branch to PLT0
528 Fixup at offset 28: 32 bit offset into symbol table
530 A 32 bit offset into the symbol table is enough. It allows for symbol
531 tables up to a size of 2 gigabyte. A single dynamic object (the main
532 program, any shared library) is limited to 4GB in size and I want to see
533 the program that manages to have a symbol table of more than 2 GB with a
534 total size of at max 4 GB. */
536 #define PLT_ENTRY_WORD0 (bfd_vma) 0xc0100000
537 #define PLT_ENTRY_WORD1 (bfd_vma) 0x0000e310
538 #define PLT_ENTRY_WORD2 (bfd_vma) 0x10000004
539 #define PLT_ENTRY_WORD3 (bfd_vma) 0x07f10d10
540 #define PLT_ENTRY_WORD4 (bfd_vma) 0xe310100c
541 #define PLT_ENTRY_WORD5 (bfd_vma) 0x0014c0f4
542 #define PLT_ENTRY_WORD6 (bfd_vma) 0x00000000
543 #define PLT_ENTRY_WORD7 (bfd_vma) 0x00000000
545 /* The first PLT entry pushes the offset into the symbol table
546 from R1 onto the stack at 8(15) and the loader object info
547 at 12(15), loads the loader address in R1 and jumps to it. */
549 /* The first entry in the PLT:
552 STG 1,56(15) # r1 contains the offset into the symbol table
553 LARL 1,_GLOBAL_OFFSET_TABLE # load address of global offset table
554 MVC 48(8,15),8(1) # move loader ino (object struct address) to stack
555 LG 1,16(1) # get entry address of loader
556 BCR 15,1 # jump to loader
558 Fixup at offset 8: relative address to start of GOT. */
560 #define PLT_FIRST_ENTRY_WORD0 (bfd_vma) 0xe310f038
561 #define PLT_FIRST_ENTRY_WORD1 (bfd_vma) 0x0024c010
562 #define PLT_FIRST_ENTRY_WORD2 (bfd_vma) 0x00000000
563 #define PLT_FIRST_ENTRY_WORD3 (bfd_vma) 0xd207f030
564 #define PLT_FIRST_ENTRY_WORD4 (bfd_vma) 0x1008e310
565 #define PLT_FIRST_ENTRY_WORD5 (bfd_vma) 0x10100004
566 #define PLT_FIRST_ENTRY_WORD6 (bfd_vma) 0x07f10700
567 #define PLT_FIRST_ENTRY_WORD7 (bfd_vma) 0x07000700
569 /* The s390 linker needs to keep track of the number of relocs that it
570 decides to copy as dynamic relocs in check_relocs for each symbol.
571 This is so that it can later discard them if they are found to be
572 unnecessary. We store the information in a field extending the
573 regular ELF linker hash table. */
575 struct elf_s390_dyn_relocs
577 struct elf_s390_dyn_relocs *next;
579 /* The input section of the reloc. */
582 /* Total number of relocs copied for the input section. */
585 /* Number of pc-relative relocs copied for the input section. */
586 bfd_size_type pc_count;
589 /* s390 ELF linker hash entry. */
591 struct elf_s390_link_hash_entry
593 struct elf_link_hash_entry elf;
595 /* Track dynamic relocs copied for this symbol. */
596 struct elf_s390_dyn_relocs *dyn_relocs;
598 /* Number of GOTPLT references for a function. */
599 bfd_signed_vma gotplt_refcount;
601 #define GOT_UNKNOWN 0
605 #define GOT_TLS_IE_NLT 3
606 unsigned char tls_type;
609 #define elf_s390_hash_entry(ent) \
610 ((struct elf_s390_link_hash_entry *)(ent))
612 struct elf_s390_obj_tdata
614 struct elf_obj_tdata root;
616 /* tls_type for each local got entry. */
617 char *local_got_tls_type;
620 #define elf_s390_tdata(abfd) \
621 ((struct elf_s390_obj_tdata *) (abfd)->tdata.any)
623 #define elf_s390_local_got_tls_type(abfd) \
624 (elf_s390_tdata (abfd)->local_got_tls_type)
627 elf_s390_mkobject (abfd)
630 bfd_size_type amt = sizeof (struct elf_s390_obj_tdata);
631 abfd->tdata.any = bfd_zalloc (abfd, amt);
632 if (abfd->tdata.any == NULL)
638 elf_s390_object_p (abfd)
641 /* Allocate our special target data. */
642 struct elf_s390_obj_tdata *new_tdata;
643 bfd_size_type amt = sizeof (struct elf_s390_obj_tdata);
644 new_tdata = bfd_zalloc (abfd, amt);
645 if (new_tdata == NULL)
647 new_tdata->root = *abfd->tdata.elf_obj_data;
648 abfd->tdata.any = new_tdata;
649 /* Set the right machine number for an s390 elf32 file. */
650 return bfd_default_set_arch_mach (abfd, bfd_arch_s390, bfd_mach_s390_64);
653 /* s390 ELF linker hash table. */
655 struct elf_s390_link_hash_table
657 struct elf_link_hash_table elf;
659 /* Short-cuts to get to dynamic linker sections. */
669 bfd_signed_vma refcount;
673 /* Small local sym to section mapping cache. */
674 struct sym_sec_cache sym_sec;
677 /* Get the s390 ELF linker hash table from a link_info structure. */
679 #define elf_s390_hash_table(p) \
680 ((struct elf_s390_link_hash_table *) ((p)->hash))
682 /* Create an entry in an s390 ELF linker hash table. */
684 static struct bfd_hash_entry *
685 link_hash_newfunc (entry, table, string)
686 struct bfd_hash_entry *entry;
687 struct bfd_hash_table *table;
690 /* Allocate the structure if it has not already been allocated by a
694 entry = bfd_hash_allocate (table,
695 sizeof (struct elf_s390_link_hash_entry));
700 /* Call the allocation method of the superclass. */
701 entry = _bfd_elf_link_hash_newfunc (entry, table, string);
704 struct elf_s390_link_hash_entry *eh;
706 eh = (struct elf_s390_link_hash_entry *) entry;
707 eh->dyn_relocs = NULL;
708 eh->gotplt_refcount = 0;
709 eh->tls_type = GOT_UNKNOWN;
715 /* Create an s390 ELF linker hash table. */
717 static struct bfd_link_hash_table *
718 elf_s390_link_hash_table_create (abfd)
721 struct elf_s390_link_hash_table *ret;
722 bfd_size_type amt = sizeof (struct elf_s390_link_hash_table);
724 ret = (struct elf_s390_link_hash_table *) bfd_malloc (amt);
728 if (! _bfd_elf_link_hash_table_init (&ret->elf, abfd, link_hash_newfunc))
741 ret->tls_ldm_got.refcount = 0;
742 ret->sym_sec.abfd = NULL;
744 return &ret->elf.root;
747 /* Create .got, .gotplt, and .rela.got sections in DYNOBJ, and set up
748 shortcuts to them in our hash table. */
751 create_got_section (dynobj, info)
753 struct bfd_link_info *info;
755 struct elf_s390_link_hash_table *htab;
757 if (! _bfd_elf_create_got_section (dynobj, info))
760 htab = elf_s390_hash_table (info);
761 htab->sgot = bfd_get_section_by_name (dynobj, ".got");
762 htab->sgotplt = bfd_get_section_by_name (dynobj, ".got.plt");
763 if (!htab->sgot || !htab->sgotplt)
766 htab->srelgot = bfd_make_section (dynobj, ".rela.got");
767 if (htab->srelgot == NULL
768 || ! bfd_set_section_flags (dynobj, htab->srelgot,
769 (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS
770 | SEC_IN_MEMORY | SEC_LINKER_CREATED
772 || ! bfd_set_section_alignment (dynobj, htab->srelgot, 3))
777 /* Create .plt, .rela.plt, .got, .got.plt, .rela.got, .dynbss, and
778 .rela.bss sections in DYNOBJ, and set up shortcuts to them in our
782 elf_s390_create_dynamic_sections (dynobj, info)
784 struct bfd_link_info *info;
786 struct elf_s390_link_hash_table *htab;
788 htab = elf_s390_hash_table (info);
789 if (!htab->sgot && !create_got_section (dynobj, info))
792 if (!_bfd_elf_create_dynamic_sections (dynobj, info))
795 htab->splt = bfd_get_section_by_name (dynobj, ".plt");
796 htab->srelplt = bfd_get_section_by_name (dynobj, ".rela.plt");
797 htab->sdynbss = bfd_get_section_by_name (dynobj, ".dynbss");
799 htab->srelbss = bfd_get_section_by_name (dynobj, ".rela.bss");
801 if (!htab->splt || !htab->srelplt || !htab->sdynbss
802 || (!info->shared && !htab->srelbss))
808 /* Copy the extra info we tack onto an elf_link_hash_entry. */
811 elf_s390_copy_indirect_symbol (bed, dir, ind)
812 const struct elf_backend_data *bed;
813 struct elf_link_hash_entry *dir, *ind;
815 struct elf_s390_link_hash_entry *edir, *eind;
817 edir = (struct elf_s390_link_hash_entry *) dir;
818 eind = (struct elf_s390_link_hash_entry *) ind;
820 if (eind->dyn_relocs != NULL)
822 if (edir->dyn_relocs != NULL)
824 struct elf_s390_dyn_relocs **pp;
825 struct elf_s390_dyn_relocs *p;
827 if (ind->root.type == bfd_link_hash_indirect)
830 /* Add reloc counts against the weak sym to the strong sym
831 list. Merge any entries against the same section. */
832 for (pp = &eind->dyn_relocs; (p = *pp) != NULL; )
834 struct elf_s390_dyn_relocs *q;
836 for (q = edir->dyn_relocs; q != NULL; q = q->next)
837 if (q->sec == p->sec)
839 q->pc_count += p->pc_count;
840 q->count += p->count;
847 *pp = edir->dyn_relocs;
850 edir->dyn_relocs = eind->dyn_relocs;
851 eind->dyn_relocs = NULL;
854 if (ind->root.type == bfd_link_hash_indirect
855 && dir->got.refcount <= 0)
857 edir->tls_type = eind->tls_type;
858 eind->tls_type = GOT_UNKNOWN;
861 if (ELIMINATE_COPY_RELOCS
862 && ind->root.type != bfd_link_hash_indirect
863 && (dir->elf_link_hash_flags & ELF_LINK_HASH_DYNAMIC_ADJUSTED) != 0)
864 /* If called to transfer flags for a weakdef during processing
865 of elf_adjust_dynamic_symbol, don't copy ELF_LINK_NON_GOT_REF.
866 We clear it ourselves for ELIMINATE_COPY_RELOCS. */
867 dir->elf_link_hash_flags |=
868 (ind->elf_link_hash_flags & (ELF_LINK_HASH_REF_DYNAMIC
869 | ELF_LINK_HASH_REF_REGULAR
870 | ELF_LINK_HASH_REF_REGULAR_NONWEAK
871 | ELF_LINK_HASH_NEEDS_PLT));
873 _bfd_elf_link_hash_copy_indirect (bed, dir, ind);
877 elf_s390_tls_transition (info, r_type, is_local)
878 struct bfd_link_info *info;
890 return R_390_TLS_LE64;
891 return R_390_TLS_IE64;
892 case R_390_TLS_GOTIE64:
894 return R_390_TLS_LE64;
895 return R_390_TLS_GOTIE64;
896 case R_390_TLS_LDM64:
897 return R_390_TLS_LE64;
903 /* Look through the relocs for a section during the first phase, and
904 allocate space in the global offset table or procedure linkage
908 elf_s390_check_relocs (abfd, info, sec, relocs)
910 struct bfd_link_info *info;
912 const Elf_Internal_Rela *relocs;
914 struct elf_s390_link_hash_table *htab;
915 Elf_Internal_Shdr *symtab_hdr;
916 struct elf_link_hash_entry **sym_hashes;
917 const Elf_Internal_Rela *rel;
918 const Elf_Internal_Rela *rel_end;
920 bfd_signed_vma *local_got_refcounts;
921 int tls_type, old_tls_type;
923 if (info->relocatable)
926 htab = elf_s390_hash_table (info);
927 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
928 sym_hashes = elf_sym_hashes (abfd);
929 local_got_refcounts = elf_local_got_refcounts (abfd);
933 rel_end = relocs + sec->reloc_count;
934 for (rel = relocs; rel < rel_end; rel++)
937 unsigned long r_symndx;
938 struct elf_link_hash_entry *h;
940 r_symndx = ELF64_R_SYM (rel->r_info);
942 if (r_symndx >= NUM_SHDR_ENTRIES (symtab_hdr))
944 (*_bfd_error_handler) (_("%s: bad symbol index: %d"),
945 bfd_archive_filename (abfd),
950 if (r_symndx < symtab_hdr->sh_info)
953 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
955 /* Create got section and local_got_refcounts array if they
957 r_type = elf_s390_tls_transition (info,
958 ELF64_R_TYPE (rel->r_info),
973 case R_390_GOTPLTENT:
975 case R_390_TLS_GOTIE12:
976 case R_390_TLS_GOTIE20:
977 case R_390_TLS_GOTIE64:
978 case R_390_TLS_IEENT:
980 case R_390_TLS_LDM64:
982 && local_got_refcounts == NULL)
986 size = symtab_hdr->sh_info;
987 size *= (sizeof (bfd_signed_vma) + sizeof(char));
988 local_got_refcounts = ((bfd_signed_vma *)
989 bfd_zalloc (abfd, size));
990 if (local_got_refcounts == NULL)
992 elf_local_got_refcounts (abfd) = local_got_refcounts;
993 elf_s390_local_got_tls_type (abfd)
994 = (char *) (local_got_refcounts + symtab_hdr->sh_info);
1001 case R_390_GOTPCDBL:
1002 if (htab->sgot == NULL)
1004 if (htab->elf.dynobj == NULL)
1005 htab->elf.dynobj = abfd;
1006 if (!create_got_section (htab->elf.dynobj, info))
1013 case R_390_GOTOFF16:
1014 case R_390_GOTOFF32:
1015 case R_390_GOTOFF64:
1017 case R_390_GOTPCDBL:
1018 /* Got is created, nothing to be done. */
1021 case R_390_PLT16DBL:
1023 case R_390_PLT32DBL:
1025 case R_390_PLTOFF16:
1026 case R_390_PLTOFF32:
1027 case R_390_PLTOFF64:
1028 /* This symbol requires a procedure linkage table entry. We
1029 actually build the entry in adjust_dynamic_symbol,
1030 because this might be a case of linking PIC code which is
1031 never referenced by a dynamic object, in which case we
1032 don't need to generate a procedure linkage table entry
1035 /* If this is a local symbol, we resolve it directly without
1036 creating a procedure linkage table entry. */
1039 h->elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_PLT;
1040 h->plt.refcount += 1;
1044 case R_390_GOTPLT12:
1045 case R_390_GOTPLT16:
1046 case R_390_GOTPLT20:
1047 case R_390_GOTPLT32:
1048 case R_390_GOTPLT64:
1049 case R_390_GOTPLTENT:
1050 /* This symbol requires either a procedure linkage table entry
1051 or an entry in the local got. We actually build the entry
1052 in adjust_dynamic_symbol because whether this is really a
1053 global reference can change and with it the fact if we have
1054 to create a plt entry or a local got entry. To be able to
1055 make a once global symbol a local one we have to keep track
1056 of the number of gotplt references that exist for this
1060 ((struct elf_s390_link_hash_entry *) h)->gotplt_refcount++;
1061 h->elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_PLT;
1062 h->plt.refcount += 1;
1065 local_got_refcounts[r_symndx] += 1;
1068 case R_390_TLS_LDM64:
1069 htab->tls_ldm_got.refcount += 1;
1072 case R_390_TLS_IE64:
1073 case R_390_TLS_GOTIE12:
1074 case R_390_TLS_GOTIE20:
1075 case R_390_TLS_GOTIE64:
1076 case R_390_TLS_IEENT:
1078 info->flags |= DF_STATIC_TLS;
1087 case R_390_TLS_GD64:
1088 /* This symbol requires a global offset table entry. */
1097 tls_type = GOT_NORMAL;
1099 case R_390_TLS_GD64:
1100 tls_type = GOT_TLS_GD;
1102 case R_390_TLS_IE64:
1103 case R_390_TLS_GOTIE64:
1104 tls_type = GOT_TLS_IE;
1106 case R_390_TLS_GOTIE12:
1107 case R_390_TLS_GOTIE20:
1108 case R_390_TLS_IEENT:
1109 tls_type = GOT_TLS_IE_NLT;
1115 h->got.refcount += 1;
1116 old_tls_type = elf_s390_hash_entry(h)->tls_type;
1120 local_got_refcounts[r_symndx] += 1;
1121 old_tls_type = elf_s390_local_got_tls_type (abfd) [r_symndx];
1123 /* If a TLS symbol is accessed using IE at least once,
1124 there is no point to use dynamic model for it. */
1125 if (old_tls_type != tls_type && old_tls_type != GOT_UNKNOWN)
1127 if (old_tls_type == GOT_NORMAL || tls_type == GOT_NORMAL)
1129 (*_bfd_error_handler)
1130 (_("%s: `%s' accessed both as normal and thread local symbol"),
1131 bfd_archive_filename (abfd), h->root.root.string);
1134 if (old_tls_type > tls_type)
1135 tls_type = old_tls_type;
1138 if (old_tls_type != tls_type)
1141 elf_s390_hash_entry (h)->tls_type = tls_type;
1143 elf_s390_local_got_tls_type (abfd) [r_symndx] = tls_type;
1146 if (r_type != R_390_TLS_IE64)
1150 case R_390_TLS_LE64:
1153 info->flags |= DF_STATIC_TLS;
1165 if (h != NULL && !info->shared)
1167 /* If this reloc is in a read-only section, we might
1168 need a copy reloc. We can't check reliably at this
1169 stage whether the section is read-only, as input
1170 sections have not yet been mapped to output sections.
1171 Tentatively set the flag for now, and correct in
1172 adjust_dynamic_symbol. */
1173 h->elf_link_hash_flags |= ELF_LINK_NON_GOT_REF;
1175 /* We may need a .plt entry if the function this reloc
1176 refers to is in a shared lib. */
1177 h->plt.refcount += 1;
1180 /* If we are creating a shared library, and this is a reloc
1181 against a global symbol, or a non PC relative reloc
1182 against a local symbol, then we need to copy the reloc
1183 into the shared library. However, if we are linking with
1184 -Bsymbolic, we do not need to copy a reloc against a
1185 global symbol which is defined in an object we are
1186 including in the link (i.e., DEF_REGULAR is set). At
1187 this point we have not seen all the input files, so it is
1188 possible that DEF_REGULAR is not set now but will be set
1189 later (it is never cleared). In case of a weak definition,
1190 DEF_REGULAR may be cleared later by a strong definition in
1191 a shared library. We account for that possibility below by
1192 storing information in the relocs_copied field of the hash
1193 table entry. A similar situation occurs when creating
1194 shared libraries and symbol visibility changes render the
1197 If on the other hand, we are creating an executable, we
1198 may need to keep relocations for symbols satisfied by a
1199 dynamic library if we manage to avoid copy relocs for the
1202 && (sec->flags & SEC_ALLOC) != 0
1203 && ((ELF64_R_TYPE (rel->r_info) != R_390_PC16
1204 && ELF64_R_TYPE (rel->r_info) != R_390_PC16DBL
1205 && ELF64_R_TYPE (rel->r_info) != R_390_PC32
1206 && ELF64_R_TYPE (rel->r_info) != R_390_PC32DBL
1207 && ELF64_R_TYPE (rel->r_info) != R_390_PC64)
1209 && (! info->symbolic
1210 || h->root.type == bfd_link_hash_defweak
1211 || (h->elf_link_hash_flags
1212 & ELF_LINK_HASH_DEF_REGULAR) == 0))))
1213 || (ELIMINATE_COPY_RELOCS
1215 && (sec->flags & SEC_ALLOC) != 0
1217 && (h->root.type == bfd_link_hash_defweak
1218 || (h->elf_link_hash_flags
1219 & ELF_LINK_HASH_DEF_REGULAR) == 0)))
1221 struct elf_s390_dyn_relocs *p;
1222 struct elf_s390_dyn_relocs **head;
1224 /* We must copy these reloc types into the output file.
1225 Create a reloc section in dynobj and make room for
1232 name = (bfd_elf_string_from_elf_section
1234 elf_elfheader (abfd)->e_shstrndx,
1235 elf_section_data (sec)->rel_hdr.sh_name));
1239 if (strncmp (name, ".rela", 5) != 0
1240 || strcmp (bfd_get_section_name (abfd, sec),
1243 (*_bfd_error_handler)
1244 (_("%s: bad relocation section name `%s\'"),
1245 bfd_archive_filename (abfd), name);
1248 if (htab->elf.dynobj == NULL)
1249 htab->elf.dynobj = abfd;
1251 dynobj = htab->elf.dynobj;
1252 sreloc = bfd_get_section_by_name (dynobj, name);
1257 sreloc = bfd_make_section (dynobj, name);
1258 flags = (SEC_HAS_CONTENTS | SEC_READONLY
1259 | SEC_IN_MEMORY | SEC_LINKER_CREATED);
1260 if ((sec->flags & SEC_ALLOC) != 0)
1261 flags |= SEC_ALLOC | SEC_LOAD;
1263 || ! bfd_set_section_flags (dynobj, sreloc, flags)
1264 || ! bfd_set_section_alignment (dynobj, sreloc, 3))
1267 elf_section_data (sec)->sreloc = sreloc;
1270 /* If this is a global symbol, we count the number of
1271 relocations we need for this symbol. */
1274 head = &((struct elf_s390_link_hash_entry *) h)->dyn_relocs;
1278 /* Track dynamic relocs needed for local syms too.
1279 We really need local syms available to do this
1283 s = bfd_section_from_r_symndx (abfd, &htab->sym_sec,
1288 head = ((struct elf_s390_dyn_relocs **)
1289 &elf_section_data (s)->local_dynrel);
1293 if (p == NULL || p->sec != sec)
1295 bfd_size_type amt = sizeof *p;
1296 p = ((struct elf_s390_dyn_relocs *)
1297 bfd_alloc (htab->elf.dynobj, amt));
1308 if (ELF64_R_TYPE (rel->r_info) == R_390_PC16
1309 || ELF64_R_TYPE (rel->r_info) == R_390_PC16DBL
1310 || ELF64_R_TYPE (rel->r_info) == R_390_PC32
1311 || ELF64_R_TYPE (rel->r_info) == R_390_PC32DBL
1312 || ELF64_R_TYPE (rel->r_info) == R_390_PC64)
1317 /* This relocation describes the C++ object vtable hierarchy.
1318 Reconstruct it for later use during GC. */
1319 case R_390_GNU_VTINHERIT:
1320 if (!_bfd_elf64_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
1324 /* This relocation describes which C++ vtable entries are actually
1325 used. Record for later use during GC. */
1326 case R_390_GNU_VTENTRY:
1327 if (!_bfd_elf64_gc_record_vtentry (abfd, sec, h, rel->r_addend))
1339 /* Return the section that should be marked against GC for a given
1343 elf_s390_gc_mark_hook (sec, info, rel, h, sym)
1345 struct bfd_link_info *info ATTRIBUTE_UNUSED;
1346 Elf_Internal_Rela *rel;
1347 struct elf_link_hash_entry *h;
1348 Elf_Internal_Sym *sym;
1352 switch (ELF64_R_TYPE (rel->r_info))
1354 case R_390_GNU_VTINHERIT:
1355 case R_390_GNU_VTENTRY:
1359 switch (h->root.type)
1361 case bfd_link_hash_defined:
1362 case bfd_link_hash_defweak:
1363 return h->root.u.def.section;
1365 case bfd_link_hash_common:
1366 return h->root.u.c.p->section;
1374 return bfd_section_from_elf_index (sec->owner, sym->st_shndx);
1379 /* Update the got entry reference counts for the section being removed. */
1382 elf_s390_gc_sweep_hook (abfd, info, sec, relocs)
1384 struct bfd_link_info *info;
1386 const Elf_Internal_Rela *relocs;
1388 Elf_Internal_Shdr *symtab_hdr;
1389 struct elf_link_hash_entry **sym_hashes;
1390 bfd_signed_vma *local_got_refcounts;
1391 const Elf_Internal_Rela *rel, *relend;
1393 elf_section_data (sec)->local_dynrel = NULL;
1395 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
1396 sym_hashes = elf_sym_hashes (abfd);
1397 local_got_refcounts = elf_local_got_refcounts (abfd);
1399 relend = relocs + sec->reloc_count;
1400 for (rel = relocs; rel < relend; rel++)
1402 unsigned long r_symndx;
1403 unsigned int r_type;
1404 struct elf_link_hash_entry *h = NULL;
1406 r_symndx = ELF64_R_SYM (rel->r_info);
1407 if (r_symndx >= symtab_hdr->sh_info)
1409 struct elf_s390_link_hash_entry *eh;
1410 struct elf_s390_dyn_relocs **pp;
1411 struct elf_s390_dyn_relocs *p;
1413 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
1414 eh = (struct elf_s390_link_hash_entry *) h;
1416 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; pp = &p->next)
1419 /* Everything must go for SEC. */
1425 r_type = ELF64_R_TYPE (rel->r_info);
1426 r_type = elf_s390_tls_transition (info, r_type, h != NULL);
1429 case R_390_TLS_LDM64:
1430 if (elf_s390_hash_table (info)->tls_ldm_got.refcount > 0)
1431 elf_s390_hash_table (info)->tls_ldm_got.refcount -= 1;
1434 case R_390_TLS_GD64:
1435 case R_390_TLS_IE64:
1436 case R_390_TLS_GOTIE12:
1437 case R_390_TLS_GOTIE20:
1438 case R_390_TLS_GOTIE64:
1439 case R_390_TLS_IEENT:
1445 case R_390_GOTOFF16:
1446 case R_390_GOTOFF32:
1447 case R_390_GOTOFF64:
1449 case R_390_GOTPCDBL:
1453 if (h->got.refcount > 0)
1454 h->got.refcount -= 1;
1456 else if (local_got_refcounts != NULL)
1458 if (local_got_refcounts[r_symndx] > 0)
1459 local_got_refcounts[r_symndx] -= 1;
1478 case R_390_PLT16DBL:
1480 case R_390_PLT32DBL:
1482 case R_390_PLTOFF16:
1483 case R_390_PLTOFF32:
1484 case R_390_PLTOFF64:
1487 if (h->plt.refcount > 0)
1488 h->plt.refcount -= 1;
1492 case R_390_GOTPLT12:
1493 case R_390_GOTPLT16:
1494 case R_390_GOTPLT20:
1495 case R_390_GOTPLT32:
1496 case R_390_GOTPLT64:
1497 case R_390_GOTPLTENT:
1500 if (h->plt.refcount > 0)
1502 ((struct elf_s390_link_hash_entry *) h)->gotplt_refcount--;
1503 h->plt.refcount -= 1;
1506 else if (local_got_refcounts != NULL)
1508 if (local_got_refcounts[r_symndx] > 0)
1509 local_got_refcounts[r_symndx] -= 1;
1521 /* Make sure we emit a GOT entry if the symbol was supposed to have a PLT
1522 entry but we found we will not create any. Called when we find we will
1523 not have any PLT for this symbol, by for example
1524 elf_s390_adjust_dynamic_symbol when we're doing a proper dynamic link,
1525 or elf_s390_size_dynamic_sections if no dynamic sections will be
1526 created (we're only linking static objects). */
1529 elf_s390_adjust_gotplt (h)
1530 struct elf_s390_link_hash_entry *h;
1532 if (h->elf.root.type == bfd_link_hash_warning)
1533 h = (struct elf_s390_link_hash_entry *) h->elf.root.u.i.link;
1535 if (h->gotplt_refcount <= 0)
1538 /* We simply add the number of gotplt references to the number
1539 * of got references for this symbol. */
1540 h->elf.got.refcount += h->gotplt_refcount;
1541 h->gotplt_refcount = -1;
1544 /* Adjust a symbol defined by a dynamic object and referenced by a
1545 regular object. The current definition is in some section of the
1546 dynamic object, but we're not including those sections. We have to
1547 change the definition to something the rest of the link can
1551 elf_s390_adjust_dynamic_symbol (info, h)
1552 struct bfd_link_info *info;
1553 struct elf_link_hash_entry *h;
1555 struct elf_s390_link_hash_table *htab;
1557 unsigned int power_of_two;
1559 /* If this is a function, put it in the procedure linkage table. We
1560 will fill in the contents of the procedure linkage table later
1561 (although we could actually do it here). */
1562 if (h->type == STT_FUNC
1563 || (h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_PLT) != 0)
1565 if (h->plt.refcount <= 0
1567 && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC) == 0
1568 && (h->elf_link_hash_flags & ELF_LINK_HASH_REF_DYNAMIC) == 0
1569 && h->root.type != bfd_link_hash_undefweak
1570 && h->root.type != bfd_link_hash_undefined))
1572 /* This case can occur if we saw a PLT32 reloc in an input
1573 file, but the symbol was never referred to by a dynamic
1574 object, or if all references were garbage collected. In
1575 such a case, we don't actually need to build a procedure
1576 linkage table, and we can just do a PC32 reloc instead. */
1577 h->plt.offset = (bfd_vma) -1;
1578 h->elf_link_hash_flags &= ~ELF_LINK_HASH_NEEDS_PLT;
1579 elf_s390_adjust_gotplt((struct elf_s390_link_hash_entry *) h);
1585 /* It's possible that we incorrectly decided a .plt reloc was
1586 needed for an R_390_PC32 reloc to a non-function sym in
1587 check_relocs. We can't decide accurately between function and
1588 non-function syms in check-relocs; Objects loaded later in
1589 the link may change h->type. So fix it now. */
1590 h->plt.offset = (bfd_vma) -1;
1592 /* If this is a weak symbol, and there is a real definition, the
1593 processor independent code will have arranged for us to see the
1594 real definition first, and we can just use the same value. */
1595 if (h->weakdef != NULL)
1597 BFD_ASSERT (h->weakdef->root.type == bfd_link_hash_defined
1598 || h->weakdef->root.type == bfd_link_hash_defweak);
1599 h->root.u.def.section = h->weakdef->root.u.def.section;
1600 h->root.u.def.value = h->weakdef->root.u.def.value;
1601 if (ELIMINATE_COPY_RELOCS || info->nocopyreloc)
1602 h->elf_link_hash_flags
1603 = ((h->elf_link_hash_flags & ~ELF_LINK_NON_GOT_REF)
1604 | (h->weakdef->elf_link_hash_flags & ELF_LINK_NON_GOT_REF));
1608 /* This is a reference to a symbol defined by a dynamic object which
1609 is not a function. */
1611 /* If we are creating a shared library, we must presume that the
1612 only references to the symbol are via the global offset table.
1613 For such cases we need not do anything here; the relocations will
1614 be handled correctly by relocate_section. */
1618 /* If there are no references to this symbol that do not use the
1619 GOT, we don't need to generate a copy reloc. */
1620 if ((h->elf_link_hash_flags & ELF_LINK_NON_GOT_REF) == 0)
1623 /* If -z nocopyreloc was given, we won't generate them either. */
1624 if (info->nocopyreloc)
1626 h->elf_link_hash_flags &= ~ELF_LINK_NON_GOT_REF;
1630 if (ELIMINATE_COPY_RELOCS)
1632 struct elf_s390_link_hash_entry * eh;
1633 struct elf_s390_dyn_relocs *p;
1635 eh = (struct elf_s390_link_hash_entry *) h;
1636 for (p = eh->dyn_relocs; p != NULL; p = p->next)
1638 s = p->sec->output_section;
1639 if (s != NULL && (s->flags & SEC_READONLY) != 0)
1643 /* If we didn't find any dynamic relocs in read-only sections, then
1644 we'll be keeping the dynamic relocs and avoiding the copy reloc. */
1647 h->elf_link_hash_flags &= ~ELF_LINK_NON_GOT_REF;
1652 /* We must allocate the symbol in our .dynbss section, which will
1653 become part of the .bss section of the executable. There will be
1654 an entry for this symbol in the .dynsym section. The dynamic
1655 object will contain position independent code, so all references
1656 from the dynamic object to this symbol will go through the global
1657 offset table. The dynamic linker will use the .dynsym entry to
1658 determine the address it must put in the global offset table, so
1659 both the dynamic object and the regular object will refer to the
1660 same memory location for the variable. */
1662 htab = elf_s390_hash_table (info);
1664 /* We must generate a R_390_COPY reloc to tell the dynamic linker to
1665 copy the initial value out of the dynamic object and into the
1666 runtime process image. */
1667 if ((h->root.u.def.section->flags & SEC_ALLOC) != 0)
1669 htab->srelbss->_raw_size += sizeof (Elf64_External_Rela);
1670 h->elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_COPY;
1673 /* We need to figure out the alignment required for this symbol. I
1674 have no idea how ELF linkers handle this. */
1675 power_of_two = bfd_log2 (h->size);
1676 if (power_of_two > 3)
1679 /* Apply the required alignment. */
1681 s->_raw_size = BFD_ALIGN (s->_raw_size, (bfd_size_type) (1 << power_of_two));
1682 if (power_of_two > bfd_get_section_alignment (htab->elf.dynobj, s))
1684 if (! bfd_set_section_alignment (htab->elf.dynobj, s, power_of_two))
1688 /* Define the symbol as being at this point in the section. */
1689 h->root.u.def.section = s;
1690 h->root.u.def.value = s->_raw_size;
1692 /* Increment the section size to make room for the symbol. */
1693 s->_raw_size += h->size;
1698 /* This is the condition under which elf_s390_finish_dynamic_symbol
1699 will be called from elflink.h. If elflink.h doesn't call our
1700 finish_dynamic_symbol routine, we'll need to do something about
1701 initializing any .plt and .got entries in elf_s390_relocate_section. */
1702 #define WILL_CALL_FINISH_DYNAMIC_SYMBOL(DYN, SHARED, H) \
1705 || ((H)->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) == 0) \
1706 && ((H)->dynindx != -1 \
1707 || ((H)->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) != 0))
1709 /* Allocate space in .plt, .got and associated reloc sections for
1713 allocate_dynrelocs (h, inf)
1714 struct elf_link_hash_entry *h;
1717 struct bfd_link_info *info;
1718 struct elf_s390_link_hash_table *htab;
1719 struct elf_s390_link_hash_entry *eh;
1720 struct elf_s390_dyn_relocs *p;
1722 if (h->root.type == bfd_link_hash_indirect)
1725 if (h->root.type == bfd_link_hash_warning)
1726 /* When warning symbols are created, they **replace** the "real"
1727 entry in the hash table, thus we never get to see the real
1728 symbol in a hash traversal. So look at it now. */
1729 h = (struct elf_link_hash_entry *) h->root.u.i.link;
1731 info = (struct bfd_link_info *) inf;
1732 htab = elf_s390_hash_table (info);
1734 if (htab->elf.dynamic_sections_created
1735 && h->plt.refcount > 0
1736 && (ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
1737 || h->root.type != bfd_link_hash_undefweak))
1739 /* Make sure this symbol is output as a dynamic symbol.
1740 Undefined weak syms won't yet be marked as dynamic. */
1741 if (h->dynindx == -1
1742 && (h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) == 0)
1744 if (! bfd_elf64_link_record_dynamic_symbol (info, h))
1749 || WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, 0, h))
1751 asection *s = htab->splt;
1753 /* If this is the first .plt entry, make room for the special
1755 if (s->_raw_size == 0)
1756 s->_raw_size += PLT_FIRST_ENTRY_SIZE;
1758 h->plt.offset = s->_raw_size;
1760 /* If this symbol is not defined in a regular file, and we are
1761 not generating a shared library, then set the symbol to this
1762 location in the .plt. This is required to make function
1763 pointers compare as equal between the normal executable and
1764 the shared library. */
1766 && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0)
1768 h->root.u.def.section = s;
1769 h->root.u.def.value = h->plt.offset;
1772 /* Make room for this entry. */
1773 s->_raw_size += PLT_ENTRY_SIZE;
1775 /* We also need to make an entry in the .got.plt section, which
1776 will be placed in the .got section by the linker script. */
1777 htab->sgotplt->_raw_size += GOT_ENTRY_SIZE;
1779 /* We also need to make an entry in the .rela.plt section. */
1780 htab->srelplt->_raw_size += sizeof (Elf64_External_Rela);
1784 h->plt.offset = (bfd_vma) -1;
1785 h->elf_link_hash_flags &= ~ELF_LINK_HASH_NEEDS_PLT;
1786 elf_s390_adjust_gotplt((struct elf_s390_link_hash_entry *) h);
1791 h->plt.offset = (bfd_vma) -1;
1792 h->elf_link_hash_flags &= ~ELF_LINK_HASH_NEEDS_PLT;
1793 elf_s390_adjust_gotplt((struct elf_s390_link_hash_entry *) h);
1796 /* If R_390_TLS_{IE64,GOTIE64,GOTIE12,IEENT} symbol is now local to
1797 the binary, we can optimize a bit. IE64 and GOTIE64 get converted
1798 to R_390_TLS_LE64 requiring no TLS entry. For GOTIE12 and IEENT
1799 we can save the dynamic TLS relocation. */
1800 if (h->got.refcount > 0
1803 && elf_s390_hash_entry(h)->tls_type >= GOT_TLS_IE)
1805 if (elf_s390_hash_entry(h)->tls_type == GOT_TLS_IE_NLT)
1806 /* For the GOTIE access without a literal pool entry the offset has
1807 to be stored somewhere. The immediate value in the instruction
1808 is not bit enough so the value is stored in the got. */
1810 h->got.offset = htab->sgot->_raw_size;
1811 htab->sgot->_raw_size += GOT_ENTRY_SIZE;
1814 h->got.offset = (bfd_vma) -1;
1816 else if (h->got.refcount > 0)
1820 int tls_type = elf_s390_hash_entry(h)->tls_type;
1822 /* Make sure this symbol is output as a dynamic symbol.
1823 Undefined weak syms won't yet be marked as dynamic. */
1824 if (h->dynindx == -1
1825 && (h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) == 0)
1827 if (! bfd_elf64_link_record_dynamic_symbol (info, h))
1832 h->got.offset = s->_raw_size;
1833 s->_raw_size += GOT_ENTRY_SIZE;
1834 /* R_390_TLS_GD64 needs 2 consecutive GOT slots. */
1835 if (tls_type == GOT_TLS_GD)
1836 s->_raw_size += GOT_ENTRY_SIZE;
1837 dyn = htab->elf.dynamic_sections_created;
1838 /* R_390_TLS_IE64 needs one dynamic relocation,
1839 R_390_TLS_GD64 needs one if local symbol and two if global. */
1840 if ((tls_type == GOT_TLS_GD && h->dynindx == -1)
1841 || tls_type >= GOT_TLS_IE)
1842 htab->srelgot->_raw_size += sizeof (Elf64_External_Rela);
1843 else if (tls_type == GOT_TLS_GD)
1844 htab->srelgot->_raw_size += 2 * sizeof (Elf64_External_Rela);
1845 else if ((ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
1846 || h->root.type != bfd_link_hash_undefweak)
1848 || WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, 0, h)))
1849 htab->srelgot->_raw_size += sizeof (Elf64_External_Rela);
1852 h->got.offset = (bfd_vma) -1;
1854 eh = (struct elf_s390_link_hash_entry *) h;
1855 if (eh->dyn_relocs == NULL)
1858 /* In the shared -Bsymbolic case, discard space allocated for
1859 dynamic pc-relative relocs against symbols which turn out to be
1860 defined in regular objects. For the normal shared case, discard
1861 space for pc-relative relocs that have become local due to symbol
1862 visibility changes. */
1866 if ((h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) != 0
1867 && ((h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) != 0
1870 struct elf_s390_dyn_relocs **pp;
1872 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; )
1874 p->count -= p->pc_count;
1883 /* Also discard relocs on undefined weak syms with non-default
1885 if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
1886 && h->root.type == bfd_link_hash_undefweak)
1887 eh->dyn_relocs = NULL;
1889 else if (ELIMINATE_COPY_RELOCS)
1891 /* For the non-shared case, discard space for relocs against
1892 symbols which turn out to need copy relocs or are not
1895 if ((h->elf_link_hash_flags & ELF_LINK_NON_GOT_REF) == 0
1896 && (((h->elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC) != 0
1897 && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0)
1898 || (htab->elf.dynamic_sections_created
1899 && (h->root.type == bfd_link_hash_undefweak
1900 || h->root.type == bfd_link_hash_undefined))))
1902 /* Make sure this symbol is output as a dynamic symbol.
1903 Undefined weak syms won't yet be marked as dynamic. */
1904 if (h->dynindx == -1
1905 && (h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) == 0)
1907 if (! bfd_elf64_link_record_dynamic_symbol (info, h))
1911 /* If that succeeded, we know we'll be keeping all the
1913 if (h->dynindx != -1)
1917 eh->dyn_relocs = NULL;
1922 /* Finally, allocate space. */
1923 for (p = eh->dyn_relocs; p != NULL; p = p->next)
1925 asection *sreloc = elf_section_data (p->sec)->sreloc;
1926 sreloc->_raw_size += p->count * sizeof (Elf64_External_Rela);
1932 /* Find any dynamic relocs that apply to read-only sections. */
1935 readonly_dynrelocs (h, inf)
1936 struct elf_link_hash_entry *h;
1939 struct elf_s390_link_hash_entry *eh;
1940 struct elf_s390_dyn_relocs *p;
1942 if (h->root.type == bfd_link_hash_warning)
1943 h = (struct elf_link_hash_entry *) h->root.u.i.link;
1945 eh = (struct elf_s390_link_hash_entry *) h;
1946 for (p = eh->dyn_relocs; p != NULL; p = p->next)
1948 asection *s = p->sec->output_section;
1950 if (s != NULL && (s->flags & SEC_READONLY) != 0)
1952 struct bfd_link_info *info = (struct bfd_link_info *) inf;
1954 info->flags |= DF_TEXTREL;
1956 /* Not an error, just cut short the traversal. */
1963 /* Set the sizes of the dynamic sections. */
1966 elf_s390_size_dynamic_sections (output_bfd, info)
1967 bfd *output_bfd ATTRIBUTE_UNUSED;
1968 struct bfd_link_info *info;
1970 struct elf_s390_link_hash_table *htab;
1976 htab = elf_s390_hash_table (info);
1977 dynobj = htab->elf.dynobj;
1981 if (htab->elf.dynamic_sections_created)
1983 /* Set the contents of the .interp section to the interpreter. */
1984 if (info->executable)
1986 s = bfd_get_section_by_name (dynobj, ".interp");
1989 s->_raw_size = sizeof ELF_DYNAMIC_INTERPRETER;
1990 s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
1994 /* Set up .got offsets for local syms, and space for local dynamic
1996 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next)
1998 bfd_signed_vma *local_got;
1999 bfd_signed_vma *end_local_got;
2000 char *local_tls_type;
2001 bfd_size_type locsymcount;
2002 Elf_Internal_Shdr *symtab_hdr;
2005 if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour)
2008 for (s = ibfd->sections; s != NULL; s = s->next)
2010 struct elf_s390_dyn_relocs *p;
2012 for (p = *((struct elf_s390_dyn_relocs **)
2013 &elf_section_data (s)->local_dynrel);
2017 if (!bfd_is_abs_section (p->sec)
2018 && bfd_is_abs_section (p->sec->output_section))
2020 /* Input section has been discarded, either because
2021 it is a copy of a linkonce section or due to
2022 linker script /DISCARD/, so we'll be discarding
2025 else if (p->count != 0)
2027 srela = elf_section_data (p->sec)->sreloc;
2028 srela->_raw_size += p->count * sizeof (Elf64_External_Rela);
2029 if ((p->sec->output_section->flags & SEC_READONLY) != 0)
2030 info->flags |= DF_TEXTREL;
2035 local_got = elf_local_got_refcounts (ibfd);
2039 symtab_hdr = &elf_tdata (ibfd)->symtab_hdr;
2040 locsymcount = symtab_hdr->sh_info;
2041 end_local_got = local_got + locsymcount;
2042 local_tls_type = elf_s390_local_got_tls_type (ibfd);
2044 srela = htab->srelgot;
2045 for (; local_got < end_local_got; ++local_got, ++local_tls_type)
2049 *local_got = s->_raw_size;
2050 s->_raw_size += GOT_ENTRY_SIZE;
2051 if (*local_tls_type == GOT_TLS_GD)
2052 s->_raw_size += GOT_ENTRY_SIZE;
2054 srela->_raw_size += sizeof (Elf64_External_Rela);
2057 *local_got = (bfd_vma) -1;
2061 if (htab->tls_ldm_got.refcount > 0)
2063 /* Allocate 2 got entries and 1 dynamic reloc for R_390_TLS_LDM64
2065 htab->tls_ldm_got.offset = htab->sgot->_raw_size;
2066 htab->sgot->_raw_size += 2 * GOT_ENTRY_SIZE;
2067 htab->srelgot->_raw_size += sizeof (Elf64_External_Rela);
2070 htab->tls_ldm_got.offset = -1;
2072 /* Allocate global sym .plt and .got entries, and space for global
2073 sym dynamic relocs. */
2074 elf_link_hash_traverse (&htab->elf, allocate_dynrelocs, (PTR) info);
2076 /* We now have determined the sizes of the various dynamic sections.
2077 Allocate memory for them. */
2079 for (s = dynobj->sections; s != NULL; s = s->next)
2081 if ((s->flags & SEC_LINKER_CREATED) == 0)
2086 || s == htab->sgotplt)
2088 /* Strip this section if we don't need it; see the
2091 else if (strncmp (bfd_get_section_name (dynobj, s), ".rela", 5) == 0)
2093 if (s->_raw_size != 0 && s != htab->srelplt)
2096 /* We use the reloc_count field as a counter if we need
2097 to copy relocs into the output file. */
2102 /* It's not one of our sections, so don't allocate space. */
2106 if (s->_raw_size == 0)
2108 /* If we don't need this section, strip it from the
2109 output file. This is to handle .rela.bss and
2110 .rela.plt. We must create it in
2111 create_dynamic_sections, because it must be created
2112 before the linker maps input sections to output
2113 sections. The linker does that before
2114 adjust_dynamic_symbol is called, and it is that
2115 function which decides whether anything needs to go
2116 into these sections. */
2118 _bfd_strip_section_from_output (info, s);
2122 /* Allocate memory for the section contents. We use bfd_zalloc
2123 here in case unused entries are not reclaimed before the
2124 section's contents are written out. This should not happen,
2125 but this way if it does, we get a R_390_NONE reloc instead
2127 s->contents = (bfd_byte *) bfd_zalloc (dynobj, s->_raw_size);
2128 if (s->contents == NULL)
2132 if (htab->elf.dynamic_sections_created)
2134 /* Add some entries to the .dynamic section. We fill in the
2135 values later, in elf_s390_finish_dynamic_sections, but we
2136 must add the entries now so that we get the correct size for
2137 the .dynamic section. The DT_DEBUG entry is filled in by the
2138 dynamic linker and used by the debugger. */
2139 #define add_dynamic_entry(TAG, VAL) \
2140 bfd_elf64_add_dynamic_entry (info, (bfd_vma) (TAG), (bfd_vma) (VAL))
2142 if (info->executable)
2144 if (!add_dynamic_entry (DT_DEBUG, 0))
2148 if (htab->splt->_raw_size != 0)
2150 if (!add_dynamic_entry (DT_PLTGOT, 0)
2151 || !add_dynamic_entry (DT_PLTRELSZ, 0)
2152 || !add_dynamic_entry (DT_PLTREL, DT_RELA)
2153 || !add_dynamic_entry (DT_JMPREL, 0))
2159 if (!add_dynamic_entry (DT_RELA, 0)
2160 || !add_dynamic_entry (DT_RELASZ, 0)
2161 || !add_dynamic_entry (DT_RELAENT, sizeof (Elf64_External_Rela)))
2164 /* If any dynamic relocs apply to a read-only section,
2165 then we need a DT_TEXTREL entry. */
2166 if ((info->flags & DF_TEXTREL) == 0)
2167 elf_link_hash_traverse (&htab->elf, readonly_dynrelocs,
2170 if ((info->flags & DF_TEXTREL) != 0)
2172 if (!add_dynamic_entry (DT_TEXTREL, 0))
2177 #undef add_dynamic_entry
2182 /* Return the base VMA address which should be subtracted from real addresses
2183 when resolving @dtpoff relocation.
2184 This is PT_TLS segment p_vaddr. */
2188 struct bfd_link_info *info;
2190 /* If tls_sec is NULL, we should have signalled an error already. */
2191 if (elf_hash_table (info)->tls_sec == NULL)
2193 return elf_hash_table (info)->tls_sec->vma;
2196 /* Return the relocation value for @tpoff relocation
2197 if STT_TLS virtual address is ADDRESS. */
2200 tpoff (info, address)
2201 struct bfd_link_info *info;
2204 struct elf_link_hash_table *htab = elf_hash_table (info);
2206 /* If tls_sec is NULL, we should have signalled an error already. */
2207 if (htab->tls_sec == NULL)
2209 return htab->tls_size + htab->tls_sec->vma - address;
2212 /* Complain if TLS instruction relocation is against an invalid
2216 invalid_tls_insn (input_bfd, input_section, rel)
2218 asection *input_section;
2219 Elf_Internal_Rela *rel;
2221 reloc_howto_type *howto;
2223 howto = elf_howto_table + ELF64_R_TYPE (rel->r_info);
2224 (*_bfd_error_handler)
2225 (_("%s(%s+0x%lx): invalid instruction for TLS relocation %s"),
2226 bfd_archive_filename (input_bfd),
2227 bfd_get_section_name (input_bfd, input_section),
2228 (long) rel->r_offset,
2232 /* Relocate a 390 ELF section. */
2235 elf_s390_relocate_section (output_bfd, info, input_bfd, input_section,
2236 contents, relocs, local_syms, local_sections)
2238 struct bfd_link_info *info;
2240 asection *input_section;
2242 Elf_Internal_Rela *relocs;
2243 Elf_Internal_Sym *local_syms;
2244 asection **local_sections;
2246 struct elf_s390_link_hash_table *htab;
2247 Elf_Internal_Shdr *symtab_hdr;
2248 struct elf_link_hash_entry **sym_hashes;
2249 bfd_vma *local_got_offsets;
2250 Elf_Internal_Rela *rel;
2251 Elf_Internal_Rela *relend;
2253 if (info->relocatable)
2256 htab = elf_s390_hash_table (info);
2257 symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
2258 sym_hashes = elf_sym_hashes (input_bfd);
2259 local_got_offsets = elf_local_got_offsets (input_bfd);
2262 relend = relocs + input_section->reloc_count;
2263 for (; rel < relend; rel++)
2265 unsigned int r_type;
2266 reloc_howto_type *howto;
2267 unsigned long r_symndx;
2268 struct elf_link_hash_entry *h;
2269 Elf_Internal_Sym *sym;
2273 bfd_boolean unresolved_reloc;
2274 bfd_reloc_status_type r;
2277 r_type = ELF64_R_TYPE (rel->r_info);
2278 if (r_type == (int) R_390_GNU_VTINHERIT
2279 || r_type == (int) R_390_GNU_VTENTRY)
2281 if (r_type >= (int) R_390_max)
2283 bfd_set_error (bfd_error_bad_value);
2287 howto = elf_howto_table + r_type;
2288 r_symndx = ELF64_R_SYM (rel->r_info);
2290 /* This is a final link. */
2294 unresolved_reloc = FALSE;
2295 if (r_symndx < symtab_hdr->sh_info)
2297 sym = local_syms + r_symndx;
2298 sec = local_sections[r_symndx];
2299 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
2303 bfd_boolean warned ATTRIBUTE_UNUSED;
2305 RELOC_FOR_GLOBAL_SYMBOL (h, sym_hashes, r_symndx,
2306 symtab_hdr, relocation, sec,
2307 unresolved_reloc, info,
2313 case R_390_GOTPLT12:
2314 case R_390_GOTPLT16:
2315 case R_390_GOTPLT20:
2316 case R_390_GOTPLT32:
2317 case R_390_GOTPLT64:
2318 case R_390_GOTPLTENT:
2319 /* There are three cases for a GOTPLT relocation. 1) The
2320 relocation is against the jump slot entry of a plt that
2321 will get emitted to the output file. 2) The relocation
2322 is against the jump slot of a plt entry that has been
2323 removed. elf_s390_adjust_gotplt has created a GOT entry
2324 as replacement. 3) The relocation is against a local symbol.
2325 Cases 2) and 3) are the same as the GOT relocation code
2326 so we just have to test for case 1 and fall through for
2328 if (h != NULL && h->plt.offset != (bfd_vma) -1)
2333 Current offset - size first entry / entry size. */
2334 plt_index = (h->plt.offset - PLT_FIRST_ENTRY_SIZE) /
2337 /* Offset in GOT is PLT index plus GOT headers(3) times 4,
2339 relocation = (plt_index + 3) * GOT_ENTRY_SIZE;
2340 unresolved_reloc = FALSE;
2342 if (r_type == R_390_GOTPLTENT)
2343 relocation += htab->sgot->output_section->vma;
2354 /* Relocation is to the entry for this symbol in the global
2356 if (htab->sgot == NULL)
2363 off = h->got.offset;
2364 dyn = htab->elf.dynamic_sections_created;
2365 if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared, h)
2369 || (h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL))
2370 && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR))
2371 || (ELF_ST_VISIBILITY (h->other)
2372 && h->root.type == bfd_link_hash_undefweak))
2374 /* This is actually a static link, or it is a
2375 -Bsymbolic link and the symbol is defined
2376 locally, or the symbol was forced to be local
2377 because of a version file. We must initialize
2378 this entry in the global offset table. Since the
2379 offset must always be a multiple of 2, we use the
2380 least significant bit to record whether we have
2381 initialized it already.
2383 When doing a dynamic link, we create a .rel.got
2384 relocation entry to initialize the value. This
2385 is done in the finish_dynamic_symbol routine. */
2390 bfd_put_64 (output_bfd, relocation,
2391 htab->sgot->contents + off);
2396 unresolved_reloc = FALSE;
2400 if (local_got_offsets == NULL)
2403 off = local_got_offsets[r_symndx];
2405 /* The offset must always be a multiple of 8. We use
2406 the least significant bit to record whether we have
2407 already generated the necessary reloc. */
2412 bfd_put_64 (output_bfd, relocation,
2413 htab->sgot->contents + off);
2418 Elf_Internal_Rela outrel;
2425 outrel.r_offset = (htab->sgot->output_section->vma
2426 + htab->sgot->output_offset
2428 outrel.r_info = ELF64_R_INFO (0, R_390_RELATIVE);
2429 outrel.r_addend = relocation;
2431 loc += s->reloc_count++ * sizeof (Elf64_External_Rela);
2432 bfd_elf64_swap_reloca_out (output_bfd, &outrel, loc);
2435 local_got_offsets[r_symndx] |= 1;
2439 if (off >= (bfd_vma) -2)
2442 relocation = htab->sgot->output_offset + off;
2444 /* For @GOTENT the relocation is against the offset between
2445 the instruction and the symbols entry in the GOT and not
2446 between the start of the GOT and the symbols entry. We
2447 add the vma of the GOT to get the correct value. */
2448 if ( r_type == R_390_GOTENT
2449 || r_type == R_390_GOTPLTENT)
2450 relocation += htab->sgot->output_section->vma;
2454 case R_390_GOTOFF16:
2455 case R_390_GOTOFF32:
2456 case R_390_GOTOFF64:
2457 /* Relocation is relative to the start of the global offset
2460 /* Note that sgot->output_offset is not involved in this
2461 calculation. We always want the start of .got. If we
2462 defined _GLOBAL_OFFSET_TABLE in a different way, as is
2463 permitted by the ABI, we might have to change this
2465 relocation -= htab->sgot->output_section->vma;
2469 case R_390_GOTPCDBL:
2470 /* Use global offset table as symbol value. */
2471 relocation = htab->sgot->output_section->vma;
2472 unresolved_reloc = FALSE;
2475 case R_390_PLT16DBL:
2477 case R_390_PLT32DBL:
2479 /* Relocation is to the entry for this symbol in the
2480 procedure linkage table. */
2482 /* Resolve a PLT32 reloc against a local symbol directly,
2483 without using the procedure linkage table. */
2487 if (h->plt.offset == (bfd_vma) -1
2488 || htab->splt == NULL)
2490 /* We didn't make a PLT entry for this symbol. This
2491 happens when statically linking PIC code, or when
2492 using -Bsymbolic. */
2496 relocation = (htab->splt->output_section->vma
2497 + htab->splt->output_offset
2499 unresolved_reloc = FALSE;
2502 case R_390_PLTOFF16:
2503 case R_390_PLTOFF32:
2504 case R_390_PLTOFF64:
2505 /* Relocation is to the entry for this symbol in the
2506 procedure linkage table relative to the start of the GOT. */
2508 /* For local symbols or if we didn't make a PLT entry for
2509 this symbol resolve the symbol directly. */
2511 || h->plt.offset == (bfd_vma) -1
2512 || htab->splt == NULL)
2514 relocation -= htab->sgot->output_section->vma;
2518 relocation = (htab->splt->output_section->vma
2519 + htab->splt->output_offset
2521 - htab->sgot->output_section->vma);
2522 unresolved_reloc = FALSE;
2534 /* r_symndx will be zero only for relocs against symbols
2535 from removed linkonce sections, or sections discarded by
2538 || (input_section->flags & SEC_ALLOC) == 0)
2543 || ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
2544 || h->root.type != bfd_link_hash_undefweak)
2545 && ((r_type != R_390_PC16
2546 && r_type != R_390_PC16DBL
2547 && r_type != R_390_PC32
2548 && r_type != R_390_PC32DBL
2549 && r_type != R_390_PC64)
2552 && (! info->symbolic
2553 || (h->elf_link_hash_flags
2554 & ELF_LINK_HASH_DEF_REGULAR) == 0))))
2555 || (ELIMINATE_COPY_RELOCS
2559 && (h->elf_link_hash_flags & ELF_LINK_NON_GOT_REF) == 0
2560 && (((h->elf_link_hash_flags
2561 & ELF_LINK_HASH_DEF_DYNAMIC) != 0
2562 && (h->elf_link_hash_flags
2563 & ELF_LINK_HASH_DEF_REGULAR) == 0)
2564 || h->root.type == bfd_link_hash_undefweak
2565 || h->root.type == bfd_link_hash_undefined)))
2567 Elf_Internal_Rela outrel;
2568 bfd_boolean skip, relocate;
2572 /* When generating a shared object, these relocations
2573 are copied into the output file to be resolved at run
2579 _bfd_elf_section_offset (output_bfd, info, input_section,
2581 if (outrel.r_offset == (bfd_vma) -1)
2583 else if (outrel.r_offset == (bfd_vma) -2)
2584 skip = TRUE, relocate = TRUE;
2586 outrel.r_offset += (input_section->output_section->vma
2587 + input_section->output_offset);
2590 memset (&outrel, 0, sizeof outrel);
2593 && (r_type == R_390_PC16
2594 || r_type == R_390_PC16DBL
2595 || r_type == R_390_PC32
2596 || r_type == R_390_PC32DBL
2597 || r_type == R_390_PC64
2600 || (h->elf_link_hash_flags
2601 & ELF_LINK_HASH_DEF_REGULAR) == 0))
2603 outrel.r_info = ELF64_R_INFO (h->dynindx, r_type);
2604 outrel.r_addend = rel->r_addend;
2608 /* This symbol is local, or marked to become local. */
2609 outrel.r_addend = relocation + rel->r_addend;
2610 if (r_type == R_390_64)
2613 outrel.r_info = ELF64_R_INFO (0, R_390_RELATIVE);
2619 if (bfd_is_abs_section (sec))
2621 else if (sec == NULL || sec->owner == NULL)
2623 bfd_set_error(bfd_error_bad_value);
2630 osec = sec->output_section;
2631 sindx = elf_section_data (osec)->dynindx;
2632 BFD_ASSERT (sindx > 0);
2634 /* We are turning this relocation into one
2635 against a section symbol, so subtract out
2636 the output section's address but not the
2637 offset of the input section in the output
2640 outrel.r_addend -= osec->vma;
2642 outrel.r_info = ELF64_R_INFO (sindx, r_type);
2646 sreloc = elf_section_data (input_section)->sreloc;
2650 loc = sreloc->contents;
2651 loc += sreloc->reloc_count++ * sizeof (Elf64_External_Rela);
2652 bfd_elf64_swap_reloca_out (output_bfd, &outrel, loc);
2654 /* If this reloc is against an external symbol, we do
2655 not want to fiddle with the addend. Otherwise, we
2656 need to include the symbol value so that it becomes
2657 an addend for the dynamic reloc. */
2664 /* Relocations for tls literal pool entries. */
2665 case R_390_TLS_IE64:
2668 Elf_Internal_Rela outrel;
2672 outrel.r_offset = rel->r_offset
2673 + input_section->output_section->vma
2674 + input_section->output_offset;
2675 outrel.r_info = ELF64_R_INFO (0, R_390_RELATIVE);
2676 sreloc = elf_section_data (input_section)->sreloc;
2679 loc = sreloc->contents;
2680 loc += sreloc->reloc_count++ * sizeof (Elf64_External_Rela);
2681 bfd_elf64_swap_reloc_out (output_bfd, &outrel, loc);
2685 case R_390_TLS_GD64:
2686 case R_390_TLS_GOTIE64:
2687 r_type = elf_s390_tls_transition (info, r_type, h == NULL);
2688 tls_type = GOT_UNKNOWN;
2689 if (h == NULL && local_got_offsets)
2690 tls_type = elf_s390_local_got_tls_type (input_bfd) [r_symndx];
2693 tls_type = elf_s390_hash_entry(h)->tls_type;
2694 if (!info->shared && h->dynindx == -1 && tls_type >= GOT_TLS_IE)
2695 r_type = R_390_TLS_LE64;
2697 if (r_type == R_390_TLS_GD64 && tls_type >= GOT_TLS_IE)
2698 r_type = R_390_TLS_IE64;
2700 if (r_type == R_390_TLS_LE64)
2702 /* This relocation gets optimized away by the local exec
2703 access optimization. */
2704 BFD_ASSERT (! unresolved_reloc);
2705 bfd_put_64 (output_bfd, -tpoff (info, relocation),
2706 contents + rel->r_offset);
2710 if (htab->sgot == NULL)
2714 off = h->got.offset;
2717 if (local_got_offsets == NULL)
2720 off = local_got_offsets[r_symndx];
2729 Elf_Internal_Rela outrel;
2733 if (htab->srelgot == NULL)
2736 outrel.r_offset = (htab->sgot->output_section->vma
2737 + htab->sgot->output_offset + off);
2739 indx = h && h->dynindx != -1 ? h->dynindx : 0;
2740 if (r_type == R_390_TLS_GD64)
2741 dr_type = R_390_TLS_DTPMOD;
2743 dr_type = R_390_TLS_TPOFF;
2744 if (dr_type == R_390_TLS_TPOFF && indx == 0)
2745 outrel.r_addend = relocation - dtpoff_base (info);
2747 outrel.r_addend = 0;
2748 outrel.r_info = ELF64_R_INFO (indx, dr_type);
2749 loc = htab->srelgot->contents;
2750 loc += htab->srelgot->reloc_count++
2751 * sizeof (Elf64_External_Rela);
2752 bfd_elf64_swap_reloca_out (output_bfd, &outrel, loc);
2754 if (r_type == R_390_TLS_GD64)
2758 BFD_ASSERT (! unresolved_reloc);
2759 bfd_put_64 (output_bfd,
2760 relocation - dtpoff_base (info),
2761 htab->sgot->contents + off + GOT_ENTRY_SIZE);
2765 outrel.r_info = ELF64_R_INFO (indx, R_390_TLS_DTPOFF);
2766 outrel.r_offset += GOT_ENTRY_SIZE;
2767 outrel.r_addend = 0;
2768 htab->srelgot->reloc_count++;
2769 loc += sizeof (Elf64_External_Rela);
2770 bfd_elf64_swap_reloca_out (output_bfd, &outrel, loc);
2777 local_got_offsets[r_symndx] |= 1;
2780 if (off >= (bfd_vma) -2)
2782 if (r_type == ELF64_R_TYPE (rel->r_info))
2784 relocation = htab->sgot->output_offset + off;
2785 if (r_type == R_390_TLS_IE64 || r_type == R_390_TLS_IEENT)
2786 relocation += htab->sgot->output_section->vma;
2787 unresolved_reloc = FALSE;
2791 bfd_put_64 (output_bfd, htab->sgot->output_offset + off,
2792 contents + rel->r_offset);
2797 case R_390_TLS_GOTIE12:
2798 case R_390_TLS_GOTIE20:
2799 case R_390_TLS_IEENT:
2802 if (local_got_offsets == NULL)
2804 off = local_got_offsets[r_symndx];
2806 goto emit_tls_relocs;
2810 off = h->got.offset;
2811 tls_type = elf_s390_hash_entry(h)->tls_type;
2812 if (info->shared || h->dynindx != -1 || tls_type < GOT_TLS_IE)
2813 goto emit_tls_relocs;
2816 if (htab->sgot == NULL)
2819 BFD_ASSERT (! unresolved_reloc);
2820 bfd_put_64 (output_bfd, -tpoff (info, relocation),
2821 htab->sgot->contents + off);
2822 relocation = htab->sgot->output_offset + off;
2823 if (r_type == R_390_TLS_IEENT)
2824 relocation += htab->sgot->output_section->vma;
2825 unresolved_reloc = FALSE;
2828 case R_390_TLS_LDM64:
2830 /* The literal pool entry this relocation refers to gets ignored
2831 by the optimized code of the local exec model. Do nothing
2832 and the value will turn out zero. */
2835 if (htab->sgot == NULL)
2838 off = htab->tls_ldm_got.offset;
2843 Elf_Internal_Rela outrel;
2846 if (htab->srelgot == NULL)
2849 outrel.r_offset = (htab->sgot->output_section->vma
2850 + htab->sgot->output_offset + off);
2852 bfd_put_64 (output_bfd, 0,
2853 htab->sgot->contents + off + GOT_ENTRY_SIZE);
2854 outrel.r_info = ELF64_R_INFO (0, R_390_TLS_DTPMOD);
2855 outrel.r_addend = 0;
2856 loc = htab->srelgot->contents;
2857 loc += htab->srelgot->reloc_count++
2858 * sizeof (Elf64_External_Rela);
2859 bfd_elf64_swap_reloca_out (output_bfd, &outrel, loc);
2860 htab->tls_ldm_got.offset |= 1;
2862 relocation = htab->sgot->output_offset + off;
2863 unresolved_reloc = FALSE;
2866 case R_390_TLS_LE64:
2869 /* Linking a shared library with non-fpic code requires
2870 a R_390_TLS_TPOFF relocation. */
2871 Elf_Internal_Rela outrel;
2876 outrel.r_offset = rel->r_offset
2877 + input_section->output_section->vma
2878 + input_section->output_offset;
2879 if (h != NULL && h->dynindx != -1)
2883 outrel.r_info = ELF64_R_INFO (indx, R_390_TLS_TPOFF);
2885 outrel.r_addend = relocation - dtpoff_base (info);
2887 outrel.r_addend = 0;
2888 sreloc = elf_section_data (input_section)->sreloc;
2891 loc = sreloc->contents;
2892 loc += sreloc->reloc_count++ * sizeof (Elf64_External_Rela);
2893 bfd_elf64_swap_reloca_out (output_bfd, &outrel, loc);
2897 BFD_ASSERT (! unresolved_reloc);
2898 bfd_put_64 (output_bfd, -tpoff (info, relocation),
2899 contents + rel->r_offset);
2903 case R_390_TLS_LDO64:
2904 if (info->shared || (input_section->flags & SEC_CODE) == 0)
2905 relocation -= dtpoff_base (info);
2907 /* When converting LDO to LE, we must negate. */
2908 relocation = -tpoff (info, relocation);
2911 /* Relocations for tls instructions. */
2912 case R_390_TLS_LOAD:
2913 case R_390_TLS_GDCALL:
2914 case R_390_TLS_LDCALL:
2915 tls_type = GOT_UNKNOWN;
2916 if (h == NULL && local_got_offsets)
2917 tls_type = elf_s390_local_got_tls_type (input_bfd) [r_symndx];
2919 tls_type = elf_s390_hash_entry(h)->tls_type;
2921 if (tls_type == GOT_TLS_GD)
2924 if (r_type == R_390_TLS_LOAD)
2926 if (!info->shared && (h == NULL || h->dynindx == -1))
2928 /* IE->LE transition. Four valid cases:
2929 lg %rx,(0,%ry) -> sllg %rx,%ry,0
2930 lg %rx,(%ry,0) -> sllg %rx,%ry,0
2931 lg %rx,(%ry,%r12) -> sllg %rx,%ry,0
2932 lg %rx,(%r12,%ry) -> sllg %rx,%ry,0 */
2933 unsigned int insn0, insn1, ry;
2935 insn0 = bfd_get_32 (input_bfd, contents + rel->r_offset);
2936 insn1 = bfd_get_16 (input_bfd, contents + rel->r_offset + 4);
2937 if (insn1 != 0x0004)
2938 invalid_tls_insn (input_bfd, input_section, rel);
2940 if ((insn0 & 0xff00f000) == 0xe3000000)
2941 /* lg %rx,0(%ry,0) -> sllg %rx,%ry,0 */
2942 ry = (insn0 & 0x000f0000);
2943 else if ((insn0 & 0xff0f0000) == 0xe3000000)
2944 /* lg %rx,0(0,%ry) -> sllg %rx,%ry,0 */
2945 ry = (insn0 & 0x0000f000) << 4;
2946 else if ((insn0 & 0xff00f000) == 0xe300c000)
2947 /* lg %rx,0(%ry,%r12) -> sllg %rx,%ry,0 */
2948 ry = (insn0 & 0x000f0000);
2949 else if ((insn0 & 0xff0f0000) == 0xe30c0000)
2950 /* lg %rx,0(%r12,%ry) -> sllg %rx,%ry,0 */
2951 ry = (insn0 & 0x0000f000) << 4;
2953 invalid_tls_insn (input_bfd, input_section, rel);
2954 insn0 = 0xeb000000 | (insn0 & 0x00f00000) | ry;
2956 bfd_put_32 (output_bfd, insn0, contents + rel->r_offset);
2957 bfd_put_16 (output_bfd, insn1, contents + rel->r_offset + 4);
2960 else if (r_type == R_390_TLS_GDCALL)
2962 unsigned int insn0, insn1;
2964 insn0 = bfd_get_32 (input_bfd, contents + rel->r_offset);
2965 insn1 = bfd_get_16 (input_bfd, contents + rel->r_offset + 4);
2966 if ((insn0 & 0xffff0000) != 0xc0e50000)
2967 invalid_tls_insn (input_bfd, input_section, rel);
2968 if (!info->shared && (h == NULL || h->dynindx == -1))
2970 /* GD->LE transition.
2971 brasl %r14,__tls_get_addr@plt -> brcl 0,. */
2977 /* GD->IE transition.
2978 brasl %r14,__tls_get_addr@plt -> lg %r2,0(%r2,%r12) */
2982 bfd_put_32 (output_bfd, insn0, contents + rel->r_offset);
2983 bfd_put_16 (output_bfd, insn1, contents + rel->r_offset + 4);
2985 else if (r_type == R_390_TLS_LDCALL)
2989 unsigned int insn0, insn1;
2991 insn0 = bfd_get_32 (input_bfd, contents + rel->r_offset);
2992 insn1 = bfd_get_16 (input_bfd, contents + rel->r_offset + 4);
2993 if ((insn0 & 0xffff0000) != 0xc0e50000)
2994 invalid_tls_insn (input_bfd, input_section, rel);
2995 /* LD->LE transition.
2996 brasl %r14,__tls_get_addr@plt -> brcl 0,. */
2999 bfd_put_32 (output_bfd, insn0, contents + rel->r_offset);
3000 bfd_put_16 (output_bfd, insn1, contents + rel->r_offset + 4);
3009 /* Dynamic relocs are not propagated for SEC_DEBUGGING sections
3010 because such sections are not SEC_ALLOC and thus ld.so will
3011 not process them. */
3012 if (unresolved_reloc
3013 && !((input_section->flags & SEC_DEBUGGING) != 0
3014 && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC) != 0))
3015 (*_bfd_error_handler)
3016 (_("%s(%s+0x%lx): unresolvable relocation against symbol `%s'"),
3017 bfd_archive_filename (input_bfd),
3018 bfd_get_section_name (input_bfd, input_section),
3019 (long) rel->r_offset,
3020 h->root.root.string);
3022 if (r_type == R_390_20
3023 || r_type == R_390_GOT20
3024 || r_type == R_390_GOTPLT20
3025 || r_type == R_390_TLS_GOTIE20)
3027 relocation += rel->r_addend;
3028 relocation = (relocation&0xfff) << 8 | (relocation&0xff000) >> 12;
3029 r = _bfd_final_link_relocate (howto, input_bfd, input_section,
3030 contents, rel->r_offset,
3034 r = _bfd_final_link_relocate (howto, input_bfd, input_section,
3035 contents, rel->r_offset,
3036 relocation, rel->r_addend);
3038 if (r != bfd_reloc_ok)
3043 name = h->root.root.string;
3046 name = bfd_elf_string_from_elf_section (input_bfd,
3047 symtab_hdr->sh_link,
3052 name = bfd_section_name (input_bfd, sec);
3055 if (r == bfd_reloc_overflow)
3058 if (! ((*info->callbacks->reloc_overflow)
3059 (info, name, howto->name, (bfd_vma) 0,
3060 input_bfd, input_section, rel->r_offset)))
3065 (*_bfd_error_handler)
3066 (_("%s(%s+0x%lx): reloc against `%s': error %d"),
3067 bfd_archive_filename (input_bfd),
3068 bfd_get_section_name (input_bfd, input_section),
3069 (long) rel->r_offset, name, (int) r);
3078 /* Finish up dynamic symbol handling. We set the contents of various
3079 dynamic sections here. */
3082 elf_s390_finish_dynamic_symbol (output_bfd, info, h, sym)
3084 struct bfd_link_info *info;
3085 struct elf_link_hash_entry *h;
3086 Elf_Internal_Sym *sym;
3088 struct elf_s390_link_hash_table *htab;
3090 htab = elf_s390_hash_table (info);
3092 if (h->plt.offset != (bfd_vma) -1)
3096 Elf_Internal_Rela rela;
3099 /* This symbol has an entry in the procedure linkage table. Set
3102 if (h->dynindx == -1
3103 || htab->splt == NULL
3104 || htab->sgotplt == NULL
3105 || htab->srelplt == NULL)
3109 Current offset - size first entry / entry size. */
3110 plt_index = (h->plt.offset - PLT_FIRST_ENTRY_SIZE) / PLT_ENTRY_SIZE;
3112 /* Offset in GOT is PLT index plus GOT headers(3) times 8,
3114 got_offset = (plt_index + 3) * GOT_ENTRY_SIZE;
3116 /* Fill in the blueprint of a PLT. */
3117 bfd_put_32 (output_bfd, (bfd_vma) PLT_ENTRY_WORD0,
3118 htab->splt->contents + h->plt.offset);
3119 bfd_put_32 (output_bfd, (bfd_vma) PLT_ENTRY_WORD1,
3120 htab->splt->contents + h->plt.offset + 4);
3121 bfd_put_32 (output_bfd, (bfd_vma) PLT_ENTRY_WORD2,
3122 htab->splt->contents + h->plt.offset + 8);
3123 bfd_put_32 (output_bfd, (bfd_vma) PLT_ENTRY_WORD3,
3124 htab->splt->contents + h->plt.offset + 12);
3125 bfd_put_32 (output_bfd, (bfd_vma) PLT_ENTRY_WORD4,
3126 htab->splt->contents + h->plt.offset + 16);
3127 bfd_put_32 (output_bfd, (bfd_vma) PLT_ENTRY_WORD5,
3128 htab->splt->contents + h->plt.offset + 20);
3129 bfd_put_32 (output_bfd, (bfd_vma) PLT_ENTRY_WORD6,
3130 htab->splt->contents + h->plt.offset + 24);
3131 bfd_put_32 (output_bfd, (bfd_vma) PLT_ENTRY_WORD7,
3132 htab->splt->contents + h->plt.offset + 28);
3133 /* Fixup the relative address to the GOT entry */
3134 bfd_put_32 (output_bfd,
3135 (htab->sgotplt->output_section->vma +
3136 htab->sgotplt->output_offset + got_offset
3137 - (htab->splt->output_section->vma + h->plt.offset))/2,
3138 htab->splt->contents + h->plt.offset + 2);
3139 /* Fixup the relative branch to PLT 0 */
3140 bfd_put_32 (output_bfd, - (PLT_FIRST_ENTRY_SIZE +
3141 (PLT_ENTRY_SIZE * plt_index) + 22)/2,
3142 htab->splt->contents + h->plt.offset + 24);
3143 /* Fixup offset into symbol table */
3144 bfd_put_32 (output_bfd, plt_index * sizeof (Elf64_External_Rela),
3145 htab->splt->contents + h->plt.offset + 28);
3147 /* Fill in the entry in the global offset table.
3148 Points to instruction after GOT offset. */
3149 bfd_put_64 (output_bfd,
3150 (htab->splt->output_section->vma
3151 + htab->splt->output_offset
3154 htab->sgotplt->contents + got_offset);
3156 /* Fill in the entry in the .rela.plt section. */
3157 rela.r_offset = (htab->sgotplt->output_section->vma
3158 + htab->sgotplt->output_offset
3160 rela.r_info = ELF64_R_INFO (h->dynindx, R_390_JMP_SLOT);
3162 loc = htab->srelplt->contents + plt_index * sizeof (Elf64_External_Rela);
3163 bfd_elf64_swap_reloca_out (output_bfd, &rela, loc);
3165 if ((h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0)
3167 /* Mark the symbol as undefined, rather than as defined in
3168 the .plt section. Leave the value alone. This is a clue
3169 for the dynamic linker, to make function pointer
3170 comparisons work between an application and shared
3172 sym->st_shndx = SHN_UNDEF;
3176 if (h->got.offset != (bfd_vma) -1
3177 && elf_s390_hash_entry(h)->tls_type != GOT_TLS_GD
3178 && elf_s390_hash_entry(h)->tls_type != GOT_TLS_IE
3179 && elf_s390_hash_entry(h)->tls_type != GOT_TLS_IE_NLT)
3181 Elf_Internal_Rela rela;
3184 /* This symbol has an entry in the global offset table. Set it
3186 if (htab->sgot == NULL || htab->srelgot == NULL)
3189 rela.r_offset = (htab->sgot->output_section->vma
3190 + htab->sgot->output_offset
3191 + (h->got.offset &~ (bfd_vma) 1));
3193 /* If this is a static link, or it is a -Bsymbolic link and the
3194 symbol is defined locally or was forced to be local because
3195 of a version file, we just want to emit a RELATIVE reloc.
3196 The entry in the global offset table will already have been
3197 initialized in the relocate_section function. */
3201 || (h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL))
3202 && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR))
3204 BFD_ASSERT((h->got.offset & 1) != 0);
3205 rela.r_info = ELF64_R_INFO (0, R_390_RELATIVE);
3206 rela.r_addend = (h->root.u.def.value
3207 + h->root.u.def.section->output_section->vma
3208 + h->root.u.def.section->output_offset);
3212 BFD_ASSERT((h->got.offset & 1) == 0);
3213 bfd_put_64 (output_bfd, (bfd_vma) 0, htab->sgot->contents + h->got.offset);
3214 rela.r_info = ELF64_R_INFO (h->dynindx, R_390_GLOB_DAT);
3218 loc = htab->srelgot->contents;
3219 loc += htab->srelgot->reloc_count++ * sizeof (Elf64_External_Rela);
3220 bfd_elf64_swap_reloca_out (output_bfd, &rela, loc);
3223 if ((h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_COPY) != 0)
3225 Elf_Internal_Rela rela;
3228 /* This symbols needs a copy reloc. Set it up. */
3230 if (h->dynindx == -1
3231 || (h->root.type != bfd_link_hash_defined
3232 && h->root.type != bfd_link_hash_defweak)
3233 || htab->srelbss == NULL)
3236 rela.r_offset = (h->root.u.def.value
3237 + h->root.u.def.section->output_section->vma
3238 + h->root.u.def.section->output_offset);
3239 rela.r_info = ELF64_R_INFO (h->dynindx, R_390_COPY);
3241 loc = htab->srelbss->contents;
3242 loc += htab->srelbss->reloc_count++ * sizeof (Elf64_External_Rela);
3243 bfd_elf64_swap_reloca_out (output_bfd, &rela, loc);
3246 /* Mark some specially defined symbols as absolute. */
3247 if (strcmp (h->root.root.string, "_DYNAMIC") == 0
3248 || strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0
3249 || strcmp (h->root.root.string, "_PROCEDURE_LINKAGE_TABLE_") == 0)
3250 sym->st_shndx = SHN_ABS;
3255 /* Used to decide how to sort relocs in an optimal manner for the
3256 dynamic linker, before writing them out. */
3258 static enum elf_reloc_type_class
3259 elf_s390_reloc_type_class (rela)
3260 const Elf_Internal_Rela *rela;
3262 switch ((int) ELF64_R_TYPE (rela->r_info))
3264 case R_390_RELATIVE:
3265 return reloc_class_relative;
3266 case R_390_JMP_SLOT:
3267 return reloc_class_plt;
3269 return reloc_class_copy;
3271 return reloc_class_normal;
3275 /* Finish up the dynamic sections. */
3278 elf_s390_finish_dynamic_sections (output_bfd, info)
3280 struct bfd_link_info *info;
3282 struct elf_s390_link_hash_table *htab;
3286 htab = elf_s390_hash_table (info);
3287 dynobj = htab->elf.dynobj;
3288 sdyn = bfd_get_section_by_name (dynobj, ".dynamic");
3290 if (htab->elf.dynamic_sections_created)
3292 Elf64_External_Dyn *dyncon, *dynconend;
3294 if (sdyn == NULL || htab->sgot == NULL)
3297 dyncon = (Elf64_External_Dyn *) sdyn->contents;
3298 dynconend = (Elf64_External_Dyn *) (sdyn->contents + sdyn->_raw_size);
3299 for (; dyncon < dynconend; dyncon++)
3301 Elf_Internal_Dyn dyn;
3304 bfd_elf64_swap_dyn_in (dynobj, dyncon, &dyn);
3312 dyn.d_un.d_ptr = htab->sgot->output_section->vma;
3316 dyn.d_un.d_ptr = htab->srelplt->output_section->vma;
3320 s = htab->srelplt->output_section;
3321 if (s->_cooked_size != 0)
3322 dyn.d_un.d_val = s->_cooked_size;
3324 dyn.d_un.d_val = s->_raw_size;
3328 /* The procedure linkage table relocs (DT_JMPREL) should
3329 not be included in the overall relocs (DT_RELA).
3330 Therefore, we override the DT_RELASZ entry here to
3331 make it not include the JMPREL relocs. Since the
3332 linker script arranges for .rela.plt to follow all
3333 other relocation sections, we don't have to worry
3334 about changing the DT_RELA entry. */
3335 s = htab->srelplt->output_section;
3336 if (s->_cooked_size != 0)
3337 dyn.d_un.d_val -= s->_cooked_size;
3339 dyn.d_un.d_val -= s->_raw_size;
3343 bfd_elf64_swap_dyn_out (output_bfd, &dyn, dyncon);
3346 /* Fill in the special first entry in the procedure linkage table. */
3347 if (htab->splt && htab->splt->_raw_size > 0)
3349 /* fill in blueprint for plt 0 entry */
3350 bfd_put_32 (output_bfd, (bfd_vma) PLT_FIRST_ENTRY_WORD0,
3351 htab->splt->contents );
3352 bfd_put_32 (output_bfd, (bfd_vma) PLT_FIRST_ENTRY_WORD1,
3353 htab->splt->contents +4 );
3354 bfd_put_32 (output_bfd, (bfd_vma) PLT_FIRST_ENTRY_WORD3,
3355 htab->splt->contents +12 );
3356 bfd_put_32 (output_bfd, (bfd_vma) PLT_FIRST_ENTRY_WORD4,
3357 htab->splt->contents +16 );
3358 bfd_put_32 (output_bfd, (bfd_vma) PLT_FIRST_ENTRY_WORD5,
3359 htab->splt->contents +20 );
3360 bfd_put_32 (output_bfd, (bfd_vma) PLT_FIRST_ENTRY_WORD6,
3361 htab->splt->contents + 24);
3362 bfd_put_32 (output_bfd, (bfd_vma) PLT_FIRST_ENTRY_WORD7,
3363 htab->splt->contents + 28 );
3364 /* Fixup relative address to start of GOT */
3365 bfd_put_32 (output_bfd,
3366 (htab->sgotplt->output_section->vma +
3367 htab->sgotplt->output_offset
3368 - htab->splt->output_section->vma - 6)/2,
3369 htab->splt->contents + 8);
3371 elf_section_data (htab->splt->output_section)
3372 ->this_hdr.sh_entsize = PLT_ENTRY_SIZE;
3377 /* Fill in the first three entries in the global offset table. */
3378 if (htab->sgotplt->_raw_size > 0)
3380 bfd_put_64 (output_bfd,
3381 (sdyn == NULL ? (bfd_vma) 0
3382 : sdyn->output_section->vma + sdyn->output_offset),
3383 htab->sgotplt->contents);
3384 /* One entry for shared object struct ptr. */
3385 bfd_put_64 (output_bfd, (bfd_vma) 0, htab->sgotplt->contents + 8);
3386 /* One entry for _dl_runtime_resolve. */
3387 bfd_put_64 (output_bfd, (bfd_vma) 0, htab->sgotplt->contents + 12);
3390 elf_section_data (htab->sgot->output_section)
3391 ->this_hdr.sh_entsize = 8;
3396 /* Why was the hash table entry size definition changed from
3397 ARCH_SIZE/8 to 4? This breaks the 64 bit dynamic linker and
3398 this is the only reason for the s390_elf64_size_info structure. */
3400 const struct elf_size_info s390_elf64_size_info =
3402 sizeof (Elf64_External_Ehdr),
3403 sizeof (Elf64_External_Phdr),
3404 sizeof (Elf64_External_Shdr),
3405 sizeof (Elf64_External_Rel),
3406 sizeof (Elf64_External_Rela),
3407 sizeof (Elf64_External_Sym),
3408 sizeof (Elf64_External_Dyn),
3409 sizeof (Elf_External_Note),
3410 8, /* hash-table entry size. */
3411 1, /* internal relocations per external relocations. */
3412 64, /* arch_size. */
3413 3, /* log_file_align. */
3414 ELFCLASS64, EV_CURRENT,
3415 bfd_elf64_write_out_phdrs,
3416 bfd_elf64_write_shdrs_and_ehdr,
3417 bfd_elf64_write_relocs,
3418 bfd_elf64_swap_symbol_in,
3419 bfd_elf64_swap_symbol_out,
3420 bfd_elf64_slurp_reloc_table,
3421 bfd_elf64_slurp_symbol_table,
3422 bfd_elf64_swap_dyn_in,
3423 bfd_elf64_swap_dyn_out,
3424 bfd_elf64_swap_reloc_in,
3425 bfd_elf64_swap_reloc_out,
3426 bfd_elf64_swap_reloca_in,
3427 bfd_elf64_swap_reloca_out
3430 #define TARGET_BIG_SYM bfd_elf64_s390_vec
3431 #define TARGET_BIG_NAME "elf64-s390"
3432 #define ELF_ARCH bfd_arch_s390
3433 #define ELF_MACHINE_CODE EM_S390
3434 #define ELF_MACHINE_ALT1 EM_S390_OLD
3435 #define ELF_MAXPAGESIZE 0x1000
3437 #define elf_backend_size_info s390_elf64_size_info
3439 #define elf_backend_can_gc_sections 1
3440 #define elf_backend_can_refcount 1
3441 #define elf_backend_want_got_plt 1
3442 #define elf_backend_plt_readonly 1
3443 #define elf_backend_want_plt_sym 0
3444 #define elf_backend_got_header_size 24
3445 #define elf_backend_rela_normal 1
3447 #define elf_info_to_howto elf_s390_info_to_howto
3449 #define bfd_elf64_bfd_is_local_label_name elf_s390_is_local_label_name
3450 #define bfd_elf64_bfd_link_hash_table_create elf_s390_link_hash_table_create
3451 #define bfd_elf64_bfd_reloc_type_lookup elf_s390_reloc_type_lookup
3453 #define elf_backend_adjust_dynamic_symbol elf_s390_adjust_dynamic_symbol
3454 #define elf_backend_check_relocs elf_s390_check_relocs
3455 #define elf_backend_copy_indirect_symbol elf_s390_copy_indirect_symbol
3456 #define elf_backend_create_dynamic_sections elf_s390_create_dynamic_sections
3457 #define elf_backend_finish_dynamic_sections elf_s390_finish_dynamic_sections
3458 #define elf_backend_finish_dynamic_symbol elf_s390_finish_dynamic_symbol
3459 #define elf_backend_gc_mark_hook elf_s390_gc_mark_hook
3460 #define elf_backend_gc_sweep_hook elf_s390_gc_sweep_hook
3461 #define elf_backend_reloc_type_class elf_s390_reloc_type_class
3462 #define elf_backend_relocate_section elf_s390_relocate_section
3463 #define elf_backend_size_dynamic_sections elf_s390_size_dynamic_sections
3464 #define elf_backend_reloc_type_class elf_s390_reloc_type_class
3466 #define bfd_elf64_mkobject elf_s390_mkobject
3467 #define elf_backend_object_p elf_s390_object_p
3469 #include "elf64-target.h"