1 /* IBM S/390-specific support for 32-bit ELF
2 Copyright 2000, 2001, 2002, 2003, 2004 Free Software Foundation, Inc.
3 Contributed by Carl B. Pedersen and Martin Schwidefsky.
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 bfd_boolean elf_s390_grok_prstatus
80 PARAMS ((bfd *, Elf_Internal_Note *));
81 static int elf_s390_tls_transition
82 PARAMS ((struct bfd_link_info *, int, int));
83 static bfd_reloc_status_type s390_tls_reloc
84 PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **));
85 static bfd_vma dtpoff_base
86 PARAMS ((struct bfd_link_info *));
88 PARAMS ((struct bfd_link_info *, bfd_vma));
89 static void invalid_tls_insn
90 PARAMS ((bfd *, asection *, Elf_Internal_Rela *));
91 static bfd_reloc_status_type s390_elf_ldisp_reloc
92 PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **));
96 /* The relocation "howto" table. */
98 static reloc_howto_type elf_howto_table[] =
100 HOWTO (R_390_NONE, /* type */
102 0, /* size (0 = byte, 1 = short, 2 = long) */
104 FALSE, /* pc_relative */
106 complain_overflow_dont, /* complain_on_overflow */
107 bfd_elf_generic_reloc, /* special_function */
108 "R_390_NONE", /* name */
109 FALSE, /* partial_inplace */
112 FALSE), /* pcrel_offset */
114 HOWTO(R_390_8, 0, 0, 8, FALSE, 0, complain_overflow_bitfield,
115 bfd_elf_generic_reloc, "R_390_8", FALSE, 0,0x000000ff, FALSE),
116 HOWTO(R_390_12, 0, 1, 12, FALSE, 0, complain_overflow_dont,
117 bfd_elf_generic_reloc, "R_390_12", FALSE, 0,0x00000fff, FALSE),
118 HOWTO(R_390_16, 0, 1, 16, FALSE, 0, complain_overflow_bitfield,
119 bfd_elf_generic_reloc, "R_390_16", FALSE, 0,0x0000ffff, FALSE),
120 HOWTO(R_390_32, 0, 2, 32, FALSE, 0, complain_overflow_bitfield,
121 bfd_elf_generic_reloc, "R_390_32", FALSE, 0,0xffffffff, FALSE),
122 HOWTO(R_390_PC32, 0, 2, 32, TRUE, 0, complain_overflow_bitfield,
123 bfd_elf_generic_reloc, "R_390_PC32", FALSE, 0,0xffffffff, TRUE),
124 HOWTO(R_390_GOT12, 0, 1, 12, FALSE, 0, complain_overflow_bitfield,
125 bfd_elf_generic_reloc, "R_390_GOT12", FALSE, 0,0x00000fff, FALSE),
126 HOWTO(R_390_GOT32, 0, 2, 32, FALSE, 0, complain_overflow_bitfield,
127 bfd_elf_generic_reloc, "R_390_GOT32", FALSE, 0,0xffffffff, FALSE),
128 HOWTO(R_390_PLT32, 0, 2, 32, TRUE, 0, complain_overflow_bitfield,
129 bfd_elf_generic_reloc, "R_390_PLT32", FALSE, 0,0xffffffff, TRUE),
130 HOWTO(R_390_COPY, 0, 2, 32, FALSE, 0, complain_overflow_bitfield,
131 bfd_elf_generic_reloc, "R_390_COPY", FALSE, 0,0xffffffff, FALSE),
132 HOWTO(R_390_GLOB_DAT, 0, 2, 32, FALSE, 0, complain_overflow_bitfield,
133 bfd_elf_generic_reloc, "R_390_GLOB_DAT", FALSE, 0,0xffffffff, FALSE),
134 HOWTO(R_390_JMP_SLOT, 0, 2, 32, FALSE, 0, complain_overflow_bitfield,
135 bfd_elf_generic_reloc, "R_390_JMP_SLOT", FALSE, 0,0xffffffff, FALSE),
136 HOWTO(R_390_RELATIVE, 0, 2, 32, TRUE, 0, complain_overflow_bitfield,
137 bfd_elf_generic_reloc, "R_390_RELATIVE", FALSE, 0,0xffffffff, FALSE),
138 HOWTO(R_390_GOTOFF32, 0, 2, 32, FALSE, 0, complain_overflow_bitfield,
139 bfd_elf_generic_reloc, "R_390_GOTOFF32", FALSE, 0,0xffffffff, FALSE),
140 HOWTO(R_390_GOTPC, 0, 2, 32, TRUE, 0, complain_overflow_bitfield,
141 bfd_elf_generic_reloc, "R_390_GOTPC", FALSE, 0,0xffffffff, TRUE),
142 HOWTO(R_390_GOT16, 0, 1, 16, FALSE, 0, complain_overflow_bitfield,
143 bfd_elf_generic_reloc, "R_390_GOT16", FALSE, 0,0x0000ffff, FALSE),
144 HOWTO(R_390_PC16, 0, 1, 16, TRUE, 0, complain_overflow_bitfield,
145 bfd_elf_generic_reloc, "R_390_PC16", FALSE, 0,0x0000ffff, TRUE),
146 HOWTO(R_390_PC16DBL, 1, 1, 16, TRUE, 0, complain_overflow_bitfield,
147 bfd_elf_generic_reloc, "R_390_PC16DBL", FALSE, 0,0x0000ffff, TRUE),
148 HOWTO(R_390_PLT16DBL, 1, 1, 16, TRUE, 0, complain_overflow_bitfield,
149 bfd_elf_generic_reloc, "R_390_PLT16DBL", FALSE, 0,0x0000ffff, TRUE),
150 HOWTO(R_390_PC32DBL, 1, 2, 32, TRUE, 0, complain_overflow_bitfield,
151 bfd_elf_generic_reloc, "R_390_PC32DBL", FALSE, 0,0xffffffff, TRUE),
152 HOWTO(R_390_PLT32DBL, 1, 2, 32, TRUE, 0, complain_overflow_bitfield,
153 bfd_elf_generic_reloc, "R_390_PLT32DBL", FALSE, 0,0xffffffff, TRUE),
154 HOWTO(R_390_GOTPCDBL, 1, 2, 32, TRUE, 0, complain_overflow_bitfield,
155 bfd_elf_generic_reloc, "R_390_GOTPCDBL", FALSE, 0,0xffffffff, TRUE),
156 EMPTY_HOWTO (R_390_64), /* Empty entry for R_390_64. */
157 EMPTY_HOWTO (R_390_PC64), /* Empty entry for R_390_PC64. */
158 EMPTY_HOWTO (R_390_GOT64), /* Empty entry for R_390_GOT64. */
159 EMPTY_HOWTO (R_390_PLT64), /* Empty entry for R_390_PLT64. */
160 HOWTO(R_390_GOTENT, 1, 2, 32, TRUE, 0, complain_overflow_bitfield,
161 bfd_elf_generic_reloc, "R_390_GOTENT", FALSE, 0,0xffffffff, TRUE),
162 HOWTO(R_390_GOTOFF16, 0, 1, 16, FALSE, 0, complain_overflow_bitfield,
163 bfd_elf_generic_reloc, "R_390_GOTOFF16", FALSE, 0,0x0000ffff, FALSE),
164 EMPTY_HOWTO (R_390_GOTOFF64), /* Empty entry for R_390_GOTOFF64. */
165 HOWTO(R_390_GOTPLT12, 0, 1, 12, FALSE, 0, complain_overflow_dont,
166 bfd_elf_generic_reloc, "R_390_GOTPLT12", FALSE, 0,0x00000fff, FALSE),
167 HOWTO(R_390_GOTPLT16, 0, 1, 16, FALSE, 0, complain_overflow_bitfield,
168 bfd_elf_generic_reloc, "R_390_GOTPLT16", FALSE, 0,0x0000ffff, FALSE),
169 HOWTO(R_390_GOTPLT32, 0, 2, 32, FALSE, 0, complain_overflow_bitfield,
170 bfd_elf_generic_reloc, "R_390_GOTPLT32", FALSE, 0,0xffffffff, FALSE),
171 EMPTY_HOWTO (R_390_GOTPLT64), /* Empty entry for R_390_GOTPLT64. */
172 HOWTO(R_390_GOTPLTENT, 1, 2, 32, TRUE, 0, complain_overflow_bitfield,
173 bfd_elf_generic_reloc, "R_390_GOTPLTENT",FALSE, 0,0xffffffff, TRUE),
174 HOWTO(R_390_PLTOFF16, 0, 1, 16, FALSE, 0, complain_overflow_bitfield,
175 bfd_elf_generic_reloc, "R_390_PLTOFF16", FALSE, 0,0x0000ffff, FALSE),
176 HOWTO(R_390_PLTOFF32, 0, 2, 32, FALSE, 0, complain_overflow_bitfield,
177 bfd_elf_generic_reloc, "R_390_PLTOFF32", FALSE, 0,0xffffffff, FALSE),
178 EMPTY_HOWTO (R_390_PLTOFF64), /* Empty entry for R_390_PLTOFF64. */
179 HOWTO(R_390_TLS_LOAD, 0, 0, 0, FALSE, 0, complain_overflow_dont,
180 s390_tls_reloc, "R_390_TLS_LOAD", FALSE, 0, 0, FALSE),
181 HOWTO(R_390_TLS_GDCALL, 0, 0, 0, FALSE, 0, complain_overflow_dont,
182 s390_tls_reloc, "R_390_TLS_GDCALL", FALSE, 0, 0, FALSE),
183 HOWTO(R_390_TLS_LDCALL, 0, 0, 0, FALSE, 0, complain_overflow_dont,
184 s390_tls_reloc, "R_390_TLS_LDCALL", FALSE, 0, 0, FALSE),
185 HOWTO(R_390_TLS_GD32, 0, 2, 32, FALSE, 0, complain_overflow_bitfield,
186 bfd_elf_generic_reloc, "R_390_TLS_GD32", FALSE, 0, 0xffffffff, FALSE),
187 EMPTY_HOWTO (R_390_TLS_GD64), /* Empty entry for R_390_TLS_GD64. */
188 HOWTO(R_390_TLS_GOTIE12, 0, 1, 12, FALSE, 0, complain_overflow_dont,
189 bfd_elf_generic_reloc, "R_390_TLS_GOTIE12", FALSE, 0, 0x00000fff, FALSE),
190 HOWTO(R_390_TLS_GOTIE32, 0, 2, 32, FALSE, 0, complain_overflow_bitfield,
191 bfd_elf_generic_reloc, "R_390_TLS_GOTIE32", FALSE, 0, 0xffffffff, FALSE),
192 EMPTY_HOWTO (R_390_TLS_GOTIE64), /* Empty entry for R_390_TLS_GOTIE64. */
193 HOWTO(R_390_TLS_LDM32, 0, 2, 32, FALSE, 0, complain_overflow_bitfield,
194 bfd_elf_generic_reloc, "R_390_TLS_LDM32", FALSE, 0, 0xffffffff, FALSE),
195 EMPTY_HOWTO (R_390_TLS_LDM64), /* Empty entry for R_390_TLS_LDM64. */
196 HOWTO(R_390_TLS_IE32, 0, 2, 32, FALSE, 0, complain_overflow_bitfield,
197 bfd_elf_generic_reloc, "R_390_TLS_IE32", FALSE, 0, 0xffffffff, FALSE),
198 EMPTY_HOWTO (R_390_TLS_IE64), /* Empty entry for R_390_TLS_IE64. */
199 HOWTO(R_390_TLS_IEENT, 1, 2, 32, TRUE, 0, complain_overflow_bitfield,
200 bfd_elf_generic_reloc, "R_390_TLS_IEENT", FALSE, 0, 0xffffffff, TRUE),
201 HOWTO(R_390_TLS_LE32, 0, 2, 32, FALSE, 0, complain_overflow_bitfield,
202 bfd_elf_generic_reloc, "R_390_TLS_LE32", FALSE, 0, 0xffffffff, FALSE),
203 EMPTY_HOWTO (R_390_TLS_LE64), /* Empty entry for R_390_TLS_LE64. */
204 HOWTO(R_390_TLS_LDO32, 0, 2, 32, FALSE, 0, complain_overflow_bitfield,
205 bfd_elf_generic_reloc, "R_390_TLS_LDO32", FALSE, 0, 0xffffffff, FALSE),
206 EMPTY_HOWTO (R_390_TLS_LDO64), /* Empty entry for R_390_TLS_LDO64. */
207 HOWTO(R_390_TLS_DTPMOD, 0, 2, 32, FALSE, 0, complain_overflow_bitfield,
208 bfd_elf_generic_reloc, "R_390_TLS_DTPMOD", FALSE, 0, 0xffffffff, FALSE),
209 HOWTO(R_390_TLS_DTPOFF, 0, 2, 32, FALSE, 0, complain_overflow_bitfield,
210 bfd_elf_generic_reloc, "R_390_TLS_DTPOFF", FALSE, 0, 0xffffffff, FALSE),
211 HOWTO(R_390_TLS_TPOFF, 0, 2, 32, FALSE, 0, complain_overflow_bitfield,
212 bfd_elf_generic_reloc, "R_390_TLS_TPOFF", FALSE, 0, 0xffffffff, FALSE),
213 HOWTO(R_390_20, 0, 2, 20, FALSE, 8, complain_overflow_dont,
214 s390_elf_ldisp_reloc, "R_390_20", FALSE, 0,0x0fffff00, FALSE),
215 HOWTO(R_390_GOT20, 0, 2, 20, FALSE, 8, complain_overflow_dont,
216 s390_elf_ldisp_reloc, "R_390_GOT20", FALSE, 0,0x0fffff00, FALSE),
217 HOWTO(R_390_GOTPLT20, 0, 2, 20, FALSE, 8, complain_overflow_dont,
218 s390_elf_ldisp_reloc, "R_390_GOTPLT20", FALSE, 0,0x0fffff00, FALSE),
219 HOWTO(R_390_TLS_GOTIE20, 0, 2, 20, FALSE, 8, complain_overflow_dont,
220 s390_elf_ldisp_reloc, "R_390_TLS_GOTIE20", FALSE, 0,0x0fffff00, FALSE),
223 /* GNU extension to record C++ vtable hierarchy. */
224 static reloc_howto_type elf32_s390_vtinherit_howto =
225 HOWTO (R_390_GNU_VTINHERIT, 0,2,0,FALSE,0,complain_overflow_dont, NULL, "R_390_GNU_VTINHERIT", FALSE,0, 0, FALSE);
226 static reloc_howto_type elf32_s390_vtentry_howto =
227 HOWTO (R_390_GNU_VTENTRY, 0,2,0,FALSE,0,complain_overflow_dont, _bfd_elf_rel_vtable_reloc_fn,"R_390_GNU_VTENTRY", FALSE,0,0, FALSE);
229 static reloc_howto_type *
230 elf_s390_reloc_type_lookup (abfd, code)
231 bfd *abfd ATTRIBUTE_UNUSED;
232 bfd_reloc_code_real_type code;
237 return &elf_howto_table[(int) R_390_NONE];
239 return &elf_howto_table[(int) R_390_8];
240 case BFD_RELOC_390_12:
241 return &elf_howto_table[(int) R_390_12];
243 return &elf_howto_table[(int) R_390_16];
245 return &elf_howto_table[(int) R_390_32];
247 return &elf_howto_table[(int) R_390_32];
248 case BFD_RELOC_32_PCREL:
249 return &elf_howto_table[(int) R_390_PC32];
250 case BFD_RELOC_390_GOT12:
251 return &elf_howto_table[(int) R_390_GOT12];
252 case BFD_RELOC_32_GOT_PCREL:
253 return &elf_howto_table[(int) R_390_GOT32];
254 case BFD_RELOC_390_PLT32:
255 return &elf_howto_table[(int) R_390_PLT32];
256 case BFD_RELOC_390_COPY:
257 return &elf_howto_table[(int) R_390_COPY];
258 case BFD_RELOC_390_GLOB_DAT:
259 return &elf_howto_table[(int) R_390_GLOB_DAT];
260 case BFD_RELOC_390_JMP_SLOT:
261 return &elf_howto_table[(int) R_390_JMP_SLOT];
262 case BFD_RELOC_390_RELATIVE:
263 return &elf_howto_table[(int) R_390_RELATIVE];
264 case BFD_RELOC_32_GOTOFF:
265 return &elf_howto_table[(int) R_390_GOTOFF32];
266 case BFD_RELOC_390_GOTPC:
267 return &elf_howto_table[(int) R_390_GOTPC];
268 case BFD_RELOC_390_GOT16:
269 return &elf_howto_table[(int) R_390_GOT16];
270 case BFD_RELOC_16_PCREL:
271 return &elf_howto_table[(int) R_390_PC16];
272 case BFD_RELOC_390_PC16DBL:
273 return &elf_howto_table[(int) R_390_PC16DBL];
274 case BFD_RELOC_390_PLT16DBL:
275 return &elf_howto_table[(int) R_390_PLT16DBL];
276 case BFD_RELOC_390_PC32DBL:
277 return &elf_howto_table[(int) R_390_PC32DBL];
278 case BFD_RELOC_390_PLT32DBL:
279 return &elf_howto_table[(int) R_390_PLT32DBL];
280 case BFD_RELOC_390_GOTPCDBL:
281 return &elf_howto_table[(int) R_390_GOTPCDBL];
282 case BFD_RELOC_390_GOTENT:
283 return &elf_howto_table[(int) R_390_GOTENT];
284 case BFD_RELOC_16_GOTOFF:
285 return &elf_howto_table[(int) R_390_GOTOFF16];
286 case BFD_RELOC_390_GOTPLT12:
287 return &elf_howto_table[(int) R_390_GOTPLT12];
288 case BFD_RELOC_390_GOTPLT16:
289 return &elf_howto_table[(int) R_390_GOTPLT16];
290 case BFD_RELOC_390_GOTPLT32:
291 return &elf_howto_table[(int) R_390_GOTPLT32];
292 case BFD_RELOC_390_GOTPLTENT:
293 return &elf_howto_table[(int) R_390_GOTPLTENT];
294 case BFD_RELOC_390_PLTOFF16:
295 return &elf_howto_table[(int) R_390_PLTOFF16];
296 case BFD_RELOC_390_PLTOFF32:
297 return &elf_howto_table[(int) R_390_PLTOFF32];
298 case BFD_RELOC_390_TLS_LOAD:
299 return &elf_howto_table[(int) R_390_TLS_LOAD];
300 case BFD_RELOC_390_TLS_GDCALL:
301 return &elf_howto_table[(int) R_390_TLS_GDCALL];
302 case BFD_RELOC_390_TLS_LDCALL:
303 return &elf_howto_table[(int) R_390_TLS_LDCALL];
304 case BFD_RELOC_390_TLS_GD32:
305 return &elf_howto_table[(int) R_390_TLS_GD32];
306 case BFD_RELOC_390_TLS_GOTIE12:
307 return &elf_howto_table[(int) R_390_TLS_GOTIE12];
308 case BFD_RELOC_390_TLS_GOTIE32:
309 return &elf_howto_table[(int) R_390_TLS_GOTIE32];
310 case BFD_RELOC_390_TLS_LDM32:
311 return &elf_howto_table[(int) R_390_TLS_LDM32];
312 case BFD_RELOC_390_TLS_IE32:
313 return &elf_howto_table[(int) R_390_TLS_IE32];
314 case BFD_RELOC_390_TLS_IEENT:
315 return &elf_howto_table[(int) R_390_TLS_IEENT];
316 case BFD_RELOC_390_TLS_LE32:
317 return &elf_howto_table[(int) R_390_TLS_LE32];
318 case BFD_RELOC_390_TLS_LDO32:
319 return &elf_howto_table[(int) R_390_TLS_LDO32];
320 case BFD_RELOC_390_TLS_DTPMOD:
321 return &elf_howto_table[(int) R_390_TLS_DTPMOD];
322 case BFD_RELOC_390_TLS_DTPOFF:
323 return &elf_howto_table[(int) R_390_TLS_DTPOFF];
324 case BFD_RELOC_390_TLS_TPOFF:
325 return &elf_howto_table[(int) R_390_TLS_TPOFF];
326 case BFD_RELOC_390_20:
327 return &elf_howto_table[(int) R_390_20];
328 case BFD_RELOC_390_GOT20:
329 return &elf_howto_table[(int) R_390_GOT20];
330 case BFD_RELOC_390_GOTPLT20:
331 return &elf_howto_table[(int) R_390_GOTPLT20];
332 case BFD_RELOC_390_TLS_GOTIE20:
333 return &elf_howto_table[(int) R_390_TLS_GOTIE20];
334 case BFD_RELOC_VTABLE_INHERIT:
335 return &elf32_s390_vtinherit_howto;
336 case BFD_RELOC_VTABLE_ENTRY:
337 return &elf32_s390_vtentry_howto;
344 /* We need to use ELF32_R_TYPE so we have our own copy of this function,
345 and elf32-s390.c has its own copy. */
348 elf_s390_info_to_howto (abfd, cache_ptr, dst)
349 bfd *abfd ATTRIBUTE_UNUSED;
351 Elf_Internal_Rela *dst;
353 switch (ELF32_R_TYPE(dst->r_info))
355 case R_390_GNU_VTINHERIT:
356 cache_ptr->howto = &elf32_s390_vtinherit_howto;
359 case R_390_GNU_VTENTRY:
360 cache_ptr->howto = &elf32_s390_vtentry_howto;
364 BFD_ASSERT (ELF32_R_TYPE(dst->r_info) < (unsigned int) R_390_max);
365 cache_ptr->howto = &elf_howto_table[ELF32_R_TYPE(dst->r_info)];
369 /* A relocation function which doesn't do anything. */
370 static bfd_reloc_status_type
371 s390_tls_reloc (abfd, reloc_entry, symbol, data, input_section,
372 output_bfd, error_message)
373 bfd *abfd ATTRIBUTE_UNUSED;
374 arelent *reloc_entry;
375 asymbol *symbol ATTRIBUTE_UNUSED;
376 PTR data ATTRIBUTE_UNUSED;
377 asection *input_section;
379 char **error_message ATTRIBUTE_UNUSED;
382 reloc_entry->address += input_section->output_offset;
386 /* Handle the large displacement relocs. */
387 static bfd_reloc_status_type
388 s390_elf_ldisp_reloc (abfd, reloc_entry, symbol, data, input_section,
389 output_bfd, error_message)
390 bfd *abfd ATTRIBUTE_UNUSED;
391 arelent *reloc_entry;
393 PTR data ATTRIBUTE_UNUSED;
394 asection *input_section;
396 char **error_message ATTRIBUTE_UNUSED;
398 reloc_howto_type *howto = reloc_entry->howto;
402 if (output_bfd != (bfd *) NULL
403 && (symbol->flags & BSF_SECTION_SYM) == 0
404 && (! howto->partial_inplace
405 || reloc_entry->addend == 0))
407 reloc_entry->address += input_section->output_offset;
411 if (output_bfd != NULL)
412 return bfd_reloc_continue;
414 if (reloc_entry->address > bfd_get_section_limit (abfd, input_section))
415 return bfd_reloc_outofrange;
417 relocation = (symbol->value
418 + symbol->section->output_section->vma
419 + symbol->section->output_offset);
420 relocation += reloc_entry->addend;
421 if (howto->pc_relative)
423 relocation -= (input_section->output_section->vma
424 + input_section->output_offset);
425 relocation -= reloc_entry->address;
428 insn = bfd_get_32 (abfd, (bfd_byte *) data + reloc_entry->address);
429 insn |= (relocation & 0xfff) << 16 | (relocation & 0xff000) >> 4;
430 bfd_put_32 (abfd, insn, (bfd_byte *) data + reloc_entry->address);
432 if ((bfd_signed_vma) relocation < - 0x80000
433 || (bfd_signed_vma) relocation > 0x7ffff)
434 return bfd_reloc_overflow;
440 elf_s390_is_local_label_name (abfd, name)
444 if (name[0] == '.' && (name[1] == 'X' || name[1] == 'L'))
447 return _bfd_elf_is_local_label_name (abfd, name);
450 /* Functions for the 390 ELF linker. */
452 /* The name of the dynamic interpreter. This is put in the .interp
455 #define ELF_DYNAMIC_INTERPRETER "/usr/lib/ld.so.1"
457 /* If ELIMINATE_COPY_RELOCS is non-zero, the linker will try to avoid
458 copying dynamic variables from a shared lib into an app's dynbss
459 section, and instead use a dynamic relocation to point into the
461 #define ELIMINATE_COPY_RELOCS 1
463 /* The size in bytes of the first entry in the procedure linkage table. */
464 #define PLT_FIRST_ENTRY_SIZE 32
465 /* The size in bytes of an entry in the procedure linkage table. */
466 #define PLT_ENTRY_SIZE 32
468 #define GOT_ENTRY_SIZE 4
470 /* The first three entries in a procedure linkage table are reserved,
471 and the initial contents are unimportant (we zero them out).
472 Subsequent entries look like this. See the SVR4 ABI 386
473 supplement to see how this works. */
475 /* For the s390, simple addr offset can only be 0 - 4096.
476 To use the full 2 GB address space, several instructions
477 are needed to load an address in a register and execute
478 a branch( or just saving the address)
480 Furthermore, only r 0 and 1 are free to use!!! */
482 /* The first 3 words in the GOT are then reserved.
483 Word 0 is the address of the dynamic table.
484 Word 1 is a pointer to a structure describing the object
485 Word 2 is used to point to the loader entry address.
487 The code for position independent PLT entries looks like this:
489 r12 holds addr of the current GOT at entry to the PLT
491 The GOT holds the address in the PLT to be executed.
492 The loader then gets:
493 24(15) = Pointer to the structure describing the object.
494 28(15) = Offset in symbol table
496 The loader must then find the module where the function is
497 and insert the address in the GOT.
499 Note: 390 can only address +- 64 K relative.
500 We check if offset > 65536, then make a relative branch -64xxx
501 back to a previous defined branch
503 PLT1: BASR 1,0 # 2 bytes
504 L 1,22(1) # 4 bytes Load offset in GOT in r 1
505 L 1,(1,12) # 4 bytes Load address from GOT in r1
506 BCR 15,1 # 2 bytes Jump to address
507 RET1: BASR 1,0 # 2 bytes Return from GOT 1st time
508 L 1,14(1) # 4 bytes Load offset in symol table in r1
509 BRC 15,-x # 4 bytes Jump to start of PLT
510 .word 0 # 2 bytes filler
511 .long ? # 4 bytes offset in GOT
512 .long ? # 4 bytes offset into symbol table
514 This was the general case. There are two additional, optimizes PLT
515 definitions. One for GOT offsets < 4096 and one for GOT offsets < 32768.
516 First the one for GOT offsets < 4096:
518 PLT1: L 1,<offset>(12) # 4 bytes Load address from GOT in R1
519 BCR 15,1 # 2 bytes Jump to address
520 .word 0,0,0 # 6 bytes filler
521 RET1: BASR 1,0 # 2 bytes Return from GOT 1st time
522 L 1,14(1) # 4 bytes Load offset in symbol table in r1
523 BRC 15,-x # 4 bytes Jump to start of PLT
524 .word 0,0,0 # 6 bytes filler
525 .long ? # 4 bytes offset into symbol table
527 Second the one for GOT offsets < 32768:
529 PLT1: LHI 1,<offset> # 4 bytes Load offset in GOT to r1
530 L 1,(1,12) # 4 bytes Load address from GOT to r1
531 BCR 15,1 # 2 bytes Jump to address
532 .word 0 # 2 bytes filler
533 RET1: BASR 1,0 # 2 bytes Return from GOT 1st time
534 L 1,14(1) # 4 bytes Load offset in symbol table in r1
535 BRC 15,-x # 4 bytes Jump to start of PLT
536 .word 0,0,0 # 6 bytes filler
537 .long ? # 4 bytes offset into symbol table
539 Total = 32 bytes per PLT entry
541 The code for static build PLT entries looks like this:
543 PLT1: BASR 1,0 # 2 bytes
544 L 1,22(1) # 4 bytes Load address of GOT entry
545 L 1,0(0,1) # 4 bytes Load address from GOT in r1
546 BCR 15,1 # 2 bytes Jump to address
547 RET1: BASR 1,0 # 2 bytes Return from GOT 1st time
548 L 1,14(1) # 4 bytes Load offset in symbol table in r1
549 BRC 15,-x # 4 bytes Jump to start of PLT
550 .word 0 # 2 bytes filler
551 .long ? # 4 bytes address of GOT entry
552 .long ? # 4 bytes offset into symbol table */
554 #define PLT_PIC_ENTRY_WORD0 0x0d105810
555 #define PLT_PIC_ENTRY_WORD1 0x10165811
556 #define PLT_PIC_ENTRY_WORD2 0xc00007f1
557 #define PLT_PIC_ENTRY_WORD3 0x0d105810
558 #define PLT_PIC_ENTRY_WORD4 0x100ea7f4
560 #define PLT_PIC12_ENTRY_WORD0 0x5810c000
561 #define PLT_PIC12_ENTRY_WORD1 0x07f10000
562 #define PLT_PIC12_ENTRY_WORD2 0x00000000
563 #define PLT_PIC12_ENTRY_WORD3 0x0d105810
564 #define PLT_PIC12_ENTRY_WORD4 0x100ea7f4
566 #define PLT_PIC16_ENTRY_WORD0 0xa7180000
567 #define PLT_PIC16_ENTRY_WORD1 0x5811c000
568 #define PLT_PIC16_ENTRY_WORD2 0x07f10000
569 #define PLT_PIC16_ENTRY_WORD3 0x0d105810
570 #define PLT_PIC16_ENTRY_WORD4 0x100ea7f4
572 #define PLT_ENTRY_WORD0 0x0d105810
573 #define PLT_ENTRY_WORD1 0x10165810
574 #define PLT_ENTRY_WORD2 0x100007f1
575 #define PLT_ENTRY_WORD3 0x0d105810
576 #define PLT_ENTRY_WORD4 0x100ea7f4
578 /* The first PLT entry pushes the offset into the symbol table
579 from R1 onto the stack at 8(15) and the loader object info
580 at 12(15), loads the loader address in R1 and jumps to it. */
582 /* The first entry in the PLT for PIC code:
585 ST 1,28(15) # R1 has offset into symbol table
586 L 1,4(12) # Get loader ino(object struct address)
587 ST 1,24(15) # Store address
588 L 1,8(12) # Entry address of loader in R1
589 BR 1 # Jump to loader
591 The first entry in the PLT for static code:
594 ST 1,28(15) # R1 has offset into symbol table
596 L 1,18(0,1) # Get address of GOT
597 MVC 24(4,15),4(1) # Move loader ino to stack
598 L 1,8(1) # Get address of loader
599 BR 1 # Jump to loader
601 .long got # address of GOT */
603 #define PLT_PIC_FIRST_ENTRY_WORD0 0x5010f01c
604 #define PLT_PIC_FIRST_ENTRY_WORD1 0x5810c004
605 #define PLT_PIC_FIRST_ENTRY_WORD2 0x5010f018
606 #define PLT_PIC_FIRST_ENTRY_WORD3 0x5810c008
607 #define PLT_PIC_FIRST_ENTRY_WORD4 0x07f10000
609 #define PLT_FIRST_ENTRY_WORD0 0x5010f01c
610 #define PLT_FIRST_ENTRY_WORD1 0x0d105810
611 #define PLT_FIRST_ENTRY_WORD2 0x1012D203
612 #define PLT_FIRST_ENTRY_WORD3 0xf0181004
613 #define PLT_FIRST_ENTRY_WORD4 0x58101008
614 #define PLT_FIRST_ENTRY_WORD5 0x07f10000
616 /* The s390 linker needs to keep track of the number of relocs that it
617 decides to copy as dynamic relocs in check_relocs for each symbol.
618 This is so that it can later discard them if they are found to be
619 unnecessary. We store the information in a field extending the
620 regular ELF linker hash table. */
622 struct elf_s390_dyn_relocs
624 struct elf_s390_dyn_relocs *next;
626 /* The input section of the reloc. */
629 /* Total number of relocs copied for the input section. */
632 /* Number of pc-relative relocs copied for the input section. */
633 bfd_size_type pc_count;
636 /* s390 ELF linker hash entry. */
638 struct elf_s390_link_hash_entry
640 struct elf_link_hash_entry elf;
642 /* Track dynamic relocs copied for this symbol. */
643 struct elf_s390_dyn_relocs *dyn_relocs;
645 /* Number of GOTPLT references for a function. */
646 bfd_signed_vma gotplt_refcount;
648 #define GOT_UNKNOWN 0
652 #define GOT_TLS_IE_NLT 4
653 unsigned char tls_type;
656 #define elf_s390_hash_entry(ent) \
657 ((struct elf_s390_link_hash_entry *)(ent))
659 struct elf_s390_obj_tdata
661 struct elf_obj_tdata root;
663 /* tls_type for each local got entry. */
664 char *local_got_tls_type;
667 #define elf_s390_tdata(abfd) \
668 ((struct elf_s390_obj_tdata *) (abfd)->tdata.any)
670 #define elf_s390_local_got_tls_type(abfd) \
671 (elf_s390_tdata (abfd)->local_got_tls_type)
674 elf_s390_mkobject (abfd)
677 bfd_size_type amt = sizeof (struct elf_s390_obj_tdata);
678 abfd->tdata.any = bfd_zalloc (abfd, amt);
679 if (abfd->tdata.any == NULL)
685 elf_s390_object_p (abfd)
688 /* Set the right machine number for an s390 elf32 file. */
689 return bfd_default_set_arch_mach (abfd, bfd_arch_s390, bfd_mach_s390_31);
692 /* s390 ELF linker hash table. */
694 struct elf_s390_link_hash_table
696 struct elf_link_hash_table elf;
698 /* Short-cuts to get to dynamic linker sections. */
708 bfd_signed_vma refcount;
712 /* Small local sym to section mapping cache. */
713 struct sym_sec_cache sym_sec;
716 /* Get the s390 ELF linker hash table from a link_info structure. */
718 #define elf_s390_hash_table(p) \
719 ((struct elf_s390_link_hash_table *) ((p)->hash))
721 /* Create an entry in an s390 ELF linker hash table. */
723 static struct bfd_hash_entry *
724 link_hash_newfunc (entry, table, string)
725 struct bfd_hash_entry *entry;
726 struct bfd_hash_table *table;
729 /* Allocate the structure if it has not already been allocated by a
733 entry = bfd_hash_allocate (table,
734 sizeof (struct elf_s390_link_hash_entry));
739 /* Call the allocation method of the superclass. */
740 entry = _bfd_elf_link_hash_newfunc (entry, table, string);
743 struct elf_s390_link_hash_entry *eh;
745 eh = (struct elf_s390_link_hash_entry *) entry;
746 eh->dyn_relocs = NULL;
747 eh->gotplt_refcount = 0;
748 eh->tls_type = GOT_UNKNOWN;
754 /* Create an s390 ELF linker hash table. */
756 static struct bfd_link_hash_table *
757 elf_s390_link_hash_table_create (abfd)
760 struct elf_s390_link_hash_table *ret;
761 bfd_size_type amt = sizeof (struct elf_s390_link_hash_table);
763 ret = (struct elf_s390_link_hash_table *) bfd_malloc (amt);
767 if (! _bfd_elf_link_hash_table_init (&ret->elf, abfd, link_hash_newfunc))
780 ret->tls_ldm_got.refcount = 0;
781 ret->sym_sec.abfd = NULL;
783 return &ret->elf.root;
786 /* Create .got, .gotplt, and .rela.got sections in DYNOBJ, and set up
787 shortcuts to them in our hash table. */
790 create_got_section (dynobj, info)
792 struct bfd_link_info *info;
794 struct elf_s390_link_hash_table *htab;
796 if (! _bfd_elf_create_got_section (dynobj, info))
799 htab = elf_s390_hash_table (info);
800 htab->sgot = bfd_get_section_by_name (dynobj, ".got");
801 htab->sgotplt = bfd_get_section_by_name (dynobj, ".got.plt");
802 if (!htab->sgot || !htab->sgotplt)
805 htab->srelgot = bfd_make_section (dynobj, ".rela.got");
806 if (htab->srelgot == NULL
807 || ! bfd_set_section_flags (dynobj, htab->srelgot,
808 (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS
809 | SEC_IN_MEMORY | SEC_LINKER_CREATED
811 || ! bfd_set_section_alignment (dynobj, htab->srelgot, 2))
816 /* Create .plt, .rela.plt, .got, .got.plt, .rela.got, .dynbss, and
817 .rela.bss sections in DYNOBJ, and set up shortcuts to them in our
821 elf_s390_create_dynamic_sections (dynobj, info)
823 struct bfd_link_info *info;
825 struct elf_s390_link_hash_table *htab;
827 htab = elf_s390_hash_table (info);
828 if (!htab->sgot && !create_got_section (dynobj, info))
831 if (!_bfd_elf_create_dynamic_sections (dynobj, info))
834 htab->splt = bfd_get_section_by_name (dynobj, ".plt");
835 htab->srelplt = bfd_get_section_by_name (dynobj, ".rela.plt");
836 htab->sdynbss = bfd_get_section_by_name (dynobj, ".dynbss");
838 htab->srelbss = bfd_get_section_by_name (dynobj, ".rela.bss");
840 if (!htab->splt || !htab->srelplt || !htab->sdynbss
841 || (!info->shared && !htab->srelbss))
847 /* Copy the extra info we tack onto an elf_link_hash_entry. */
850 elf_s390_copy_indirect_symbol (bed, dir, ind)
851 const struct elf_backend_data *bed;
852 struct elf_link_hash_entry *dir, *ind;
854 struct elf_s390_link_hash_entry *edir, *eind;
856 edir = (struct elf_s390_link_hash_entry *) dir;
857 eind = (struct elf_s390_link_hash_entry *) ind;
859 if (eind->dyn_relocs != NULL)
861 if (edir->dyn_relocs != NULL)
863 struct elf_s390_dyn_relocs **pp;
864 struct elf_s390_dyn_relocs *p;
866 if (ind->root.type == bfd_link_hash_indirect)
869 /* Add reloc counts against the weak sym to the strong sym
870 list. Merge any entries against the same section. */
871 for (pp = &eind->dyn_relocs; (p = *pp) != NULL; )
873 struct elf_s390_dyn_relocs *q;
875 for (q = edir->dyn_relocs; q != NULL; q = q->next)
876 if (q->sec == p->sec)
878 q->pc_count += p->pc_count;
879 q->count += p->count;
886 *pp = edir->dyn_relocs;
889 edir->dyn_relocs = eind->dyn_relocs;
890 eind->dyn_relocs = NULL;
893 if (ind->root.type == bfd_link_hash_indirect
894 && dir->got.refcount <= 0)
896 edir->tls_type = eind->tls_type;
897 eind->tls_type = GOT_UNKNOWN;
900 if (ELIMINATE_COPY_RELOCS
901 && ind->root.type != bfd_link_hash_indirect
902 && (dir->elf_link_hash_flags & ELF_LINK_HASH_DYNAMIC_ADJUSTED) != 0)
903 /* If called to transfer flags for a weakdef during processing
904 of elf_adjust_dynamic_symbol, don't copy ELF_LINK_NON_GOT_REF.
905 We clear it ourselves for ELIMINATE_COPY_RELOCS. */
906 dir->elf_link_hash_flags |=
907 (ind->elf_link_hash_flags & (ELF_LINK_HASH_REF_DYNAMIC
908 | ELF_LINK_HASH_REF_REGULAR
909 | ELF_LINK_HASH_REF_REGULAR_NONWEAK
910 | ELF_LINK_HASH_NEEDS_PLT));
912 _bfd_elf_link_hash_copy_indirect (bed, dir, ind);
916 elf_s390_tls_transition (info, r_type, is_local)
917 struct bfd_link_info *info;
929 return R_390_TLS_LE32;
930 return R_390_TLS_IE32;
931 case R_390_TLS_GOTIE32:
933 return R_390_TLS_LE32;
934 return R_390_TLS_GOTIE32;
935 case R_390_TLS_LDM32:
936 return R_390_TLS_LE32;
942 /* Look through the relocs for a section during the first phase, and
943 allocate space in the global offset table or procedure linkage
947 elf_s390_check_relocs (abfd, info, sec, relocs)
949 struct bfd_link_info *info;
951 const Elf_Internal_Rela *relocs;
953 struct elf_s390_link_hash_table *htab;
954 Elf_Internal_Shdr *symtab_hdr;
955 struct elf_link_hash_entry **sym_hashes;
956 const Elf_Internal_Rela *rel;
957 const Elf_Internal_Rela *rel_end;
959 bfd_signed_vma *local_got_refcounts;
960 int tls_type, old_tls_type;
962 if (info->relocatable)
965 htab = elf_s390_hash_table (info);
966 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
967 sym_hashes = elf_sym_hashes (abfd);
968 local_got_refcounts = elf_local_got_refcounts (abfd);
972 rel_end = relocs + sec->reloc_count;
973 for (rel = relocs; rel < rel_end; rel++)
976 unsigned long r_symndx;
977 struct elf_link_hash_entry *h;
979 r_symndx = ELF32_R_SYM (rel->r_info);
981 if (r_symndx >= NUM_SHDR_ENTRIES (symtab_hdr))
983 (*_bfd_error_handler) (_("%B: bad symbol index: %d"),
988 if (r_symndx < symtab_hdr->sh_info)
991 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
993 /* Create got section and local_got_refcounts array if they
995 r_type = elf_s390_tls_transition (info,
996 ELF32_R_TYPE (rel->r_info),
1005 case R_390_GOTPLT12:
1006 case R_390_GOTPLT16:
1007 case R_390_GOTPLT20:
1008 case R_390_GOTPLT32:
1009 case R_390_GOTPLTENT:
1010 case R_390_TLS_GD32:
1011 case R_390_TLS_GOTIE12:
1012 case R_390_TLS_GOTIE20:
1013 case R_390_TLS_GOTIE32:
1014 case R_390_TLS_IEENT:
1015 case R_390_TLS_IE32:
1016 case R_390_TLS_LDM32:
1018 && local_got_refcounts == NULL)
1022 size = symtab_hdr->sh_info;
1023 size *= (sizeof (bfd_signed_vma) + sizeof(char));
1024 local_got_refcounts = ((bfd_signed_vma *)
1025 bfd_zalloc (abfd, size));
1026 if (local_got_refcounts == NULL)
1028 elf_local_got_refcounts (abfd) = local_got_refcounts;
1029 elf_s390_local_got_tls_type (abfd)
1030 = (char *) (local_got_refcounts + symtab_hdr->sh_info);
1033 case R_390_GOTOFF16:
1034 case R_390_GOTOFF32:
1036 case R_390_GOTPCDBL:
1037 if (htab->sgot == NULL)
1039 if (htab->elf.dynobj == NULL)
1040 htab->elf.dynobj = abfd;
1041 if (!create_got_section (htab->elf.dynobj, info))
1048 case R_390_GOTOFF16:
1049 case R_390_GOTOFF32:
1051 case R_390_GOTPCDBL:
1052 /* Got is created, nothing to be done. */
1055 case R_390_PLT16DBL:
1056 case R_390_PLT32DBL:
1058 case R_390_PLTOFF16:
1059 case R_390_PLTOFF32:
1060 /* This symbol requires a procedure linkage table entry. We
1061 actually build the entry in adjust_dynamic_symbol,
1062 because this might be a case of linking PIC code which is
1063 never referenced by a dynamic object, in which case we
1064 don't need to generate a procedure linkage table entry
1067 /* If this is a local symbol, we resolve it directly without
1068 creating a procedure linkage table entry. */
1071 h->elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_PLT;
1072 h->plt.refcount += 1;
1076 case R_390_GOTPLT12:
1077 case R_390_GOTPLT16:
1078 case R_390_GOTPLT20:
1079 case R_390_GOTPLT32:
1080 case R_390_GOTPLTENT:
1081 /* This symbol requires either a procedure linkage table entry
1082 or an entry in the local got. We actually build the entry
1083 in adjust_dynamic_symbol because whether this is really a
1084 global reference can change and with it the fact if we have
1085 to create a plt entry or a local got entry. To be able to
1086 make a once global symbol a local one we have to keep track
1087 of the number of gotplt references that exist for this
1091 ((struct elf_s390_link_hash_entry *) h)->gotplt_refcount++;
1092 h->elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_PLT;
1093 h->plt.refcount += 1;
1096 local_got_refcounts[r_symndx] += 1;
1099 case R_390_TLS_LDM32:
1100 htab->tls_ldm_got.refcount += 1;
1103 case R_390_TLS_IE32:
1104 case R_390_TLS_GOTIE12:
1105 case R_390_TLS_GOTIE20:
1106 case R_390_TLS_GOTIE32:
1107 case R_390_TLS_IEENT:
1109 info->flags |= DF_STATIC_TLS;
1117 case R_390_TLS_GD32:
1118 /* This symbol requires a global offset table entry. */
1127 tls_type = GOT_NORMAL;
1129 case R_390_TLS_GD32:
1130 tls_type = GOT_TLS_GD;
1132 case R_390_TLS_IE32:
1133 case R_390_TLS_GOTIE32:
1134 tls_type = GOT_TLS_IE;
1136 case R_390_TLS_GOTIE12:
1137 case R_390_TLS_GOTIE20:
1138 case R_390_TLS_IEENT:
1139 tls_type = GOT_TLS_IE_NLT;
1145 h->got.refcount += 1;
1146 old_tls_type = elf_s390_hash_entry(h)->tls_type;
1150 local_got_refcounts[r_symndx] += 1;
1151 old_tls_type = elf_s390_local_got_tls_type (abfd) [r_symndx];
1153 /* If a TLS symbol is accessed using IE at least once,
1154 there is no point to use dynamic model for it. */
1155 if (old_tls_type != tls_type && old_tls_type != GOT_UNKNOWN)
1157 if (old_tls_type == GOT_NORMAL || tls_type == GOT_NORMAL)
1159 (*_bfd_error_handler)
1160 (_("%B: `%s' accessed both as normal and thread local symbol"),
1161 abfd, h->root.root.string);
1164 if (old_tls_type > tls_type)
1165 tls_type = old_tls_type;
1168 if (old_tls_type != tls_type)
1171 elf_s390_hash_entry (h)->tls_type = tls_type;
1173 elf_s390_local_got_tls_type (abfd) [r_symndx] = tls_type;
1176 if (r_type != R_390_TLS_IE32)
1180 case R_390_TLS_LE32:
1183 info->flags |= DF_STATIC_TLS;
1193 if (h != NULL && !info->shared)
1195 /* If this reloc is in a read-only section, we might
1196 need a copy reloc. We can't check reliably at this
1197 stage whether the section is read-only, as input
1198 sections have not yet been mapped to output sections.
1199 Tentatively set the flag for now, and correct in
1200 adjust_dynamic_symbol. */
1201 h->elf_link_hash_flags |= ELF_LINK_NON_GOT_REF;
1203 /* We may need a .plt entry if the function this reloc
1204 refers to is in a shared lib. */
1205 h->plt.refcount += 1;
1208 /* If we are creating a shared library, and this is a reloc
1209 against a global symbol, or a non PC relative reloc
1210 against a local symbol, then we need to copy the reloc
1211 into the shared library. However, if we are linking with
1212 -Bsymbolic, we do not need to copy a reloc against a
1213 global symbol which is defined in an object we are
1214 including in the link (i.e., DEF_REGULAR is set). At
1215 this point we have not seen all the input files, so it is
1216 possible that DEF_REGULAR is not set now but will be set
1217 later (it is never cleared). In case of a weak definition,
1218 DEF_REGULAR may be cleared later by a strong definition in
1219 a shared library. We account for that possibility below by
1220 storing information in the relocs_copied field of the hash
1221 table entry. A similar situation occurs when creating
1222 shared libraries and symbol visibility changes render the
1225 If on the other hand, we are creating an executable, we
1226 may need to keep relocations for symbols satisfied by a
1227 dynamic library if we manage to avoid copy relocs for the
1230 && (sec->flags & SEC_ALLOC) != 0
1231 && ((ELF32_R_TYPE (rel->r_info) != R_390_PC16
1232 && ELF32_R_TYPE (rel->r_info) != R_390_PC16DBL
1233 && ELF32_R_TYPE (rel->r_info) != R_390_PC32DBL
1234 && ELF32_R_TYPE (rel->r_info) != R_390_PC32)
1236 && (! info->symbolic
1237 || h->root.type == bfd_link_hash_defweak
1238 || (h->elf_link_hash_flags
1239 & ELF_LINK_HASH_DEF_REGULAR) == 0))))
1240 || (ELIMINATE_COPY_RELOCS
1242 && (sec->flags & SEC_ALLOC) != 0
1244 && (h->root.type == bfd_link_hash_defweak
1245 || (h->elf_link_hash_flags
1246 & ELF_LINK_HASH_DEF_REGULAR) == 0)))
1248 struct elf_s390_dyn_relocs *p;
1249 struct elf_s390_dyn_relocs **head;
1251 /* We must copy these reloc types into the output file.
1252 Create a reloc section in dynobj and make room for
1259 name = (bfd_elf_string_from_elf_section
1261 elf_elfheader (abfd)->e_shstrndx,
1262 elf_section_data (sec)->rel_hdr.sh_name));
1266 if (strncmp (name, ".rela", 5) != 0
1267 || strcmp (bfd_get_section_name (abfd, sec),
1270 (*_bfd_error_handler)
1271 (_("%B: bad relocation section name `%s\'"),
1275 if (htab->elf.dynobj == NULL)
1276 htab->elf.dynobj = abfd;
1278 dynobj = htab->elf.dynobj;
1279 sreloc = bfd_get_section_by_name (dynobj, name);
1284 sreloc = bfd_make_section (dynobj, name);
1285 flags = (SEC_HAS_CONTENTS | SEC_READONLY
1286 | SEC_IN_MEMORY | SEC_LINKER_CREATED);
1287 if ((sec->flags & SEC_ALLOC) != 0)
1288 flags |= SEC_ALLOC | SEC_LOAD;
1290 || ! bfd_set_section_flags (dynobj, sreloc, flags)
1291 || ! bfd_set_section_alignment (dynobj, sreloc, 2))
1294 elf_section_data (sec)->sreloc = sreloc;
1297 /* If this is a global symbol, we count the number of
1298 relocations we need for this symbol. */
1301 head = &((struct elf_s390_link_hash_entry *) h)->dyn_relocs;
1305 /* Track dynamic relocs needed for local syms too.
1306 We really need local syms available to do this
1310 s = bfd_section_from_r_symndx (abfd, &htab->sym_sec,
1315 head = ((struct elf_s390_dyn_relocs **)
1316 &elf_section_data (s)->local_dynrel);
1320 if (p == NULL || p->sec != sec)
1322 bfd_size_type amt = sizeof *p;
1324 p = ((struct elf_s390_dyn_relocs *)
1325 bfd_alloc (htab->elf.dynobj, amt));
1336 if (ELF32_R_TYPE (rel->r_info) == R_390_PC16
1337 || ELF32_R_TYPE (rel->r_info) == R_390_PC16DBL
1338 || ELF32_R_TYPE (rel->r_info) == R_390_PC32DBL
1339 || ELF32_R_TYPE (rel->r_info) == R_390_PC32)
1344 /* This relocation describes the C++ object vtable hierarchy.
1345 Reconstruct it for later use during GC. */
1346 case R_390_GNU_VTINHERIT:
1347 if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
1351 /* This relocation describes which C++ vtable entries are actually
1352 used. Record for later use during GC. */
1353 case R_390_GNU_VTENTRY:
1354 if (!bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
1366 /* Return the section that should be marked against GC for a given
1370 elf_s390_gc_mark_hook (sec, info, rel, h, sym)
1372 struct bfd_link_info *info ATTRIBUTE_UNUSED;
1373 Elf_Internal_Rela *rel;
1374 struct elf_link_hash_entry *h;
1375 Elf_Internal_Sym *sym;
1379 switch (ELF32_R_TYPE (rel->r_info))
1381 case R_390_GNU_VTINHERIT:
1382 case R_390_GNU_VTENTRY:
1386 switch (h->root.type)
1388 case bfd_link_hash_defined:
1389 case bfd_link_hash_defweak:
1390 return h->root.u.def.section;
1392 case bfd_link_hash_common:
1393 return h->root.u.c.p->section;
1401 return bfd_section_from_elf_index (sec->owner, sym->st_shndx);
1406 /* Update the got entry reference counts for the section being removed. */
1409 elf_s390_gc_sweep_hook (abfd, info, sec, relocs)
1411 struct bfd_link_info *info;
1413 const Elf_Internal_Rela *relocs;
1415 Elf_Internal_Shdr *symtab_hdr;
1416 struct elf_link_hash_entry **sym_hashes;
1417 bfd_signed_vma *local_got_refcounts;
1418 const Elf_Internal_Rela *rel, *relend;
1420 elf_section_data (sec)->local_dynrel = NULL;
1422 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
1423 sym_hashes = elf_sym_hashes (abfd);
1424 local_got_refcounts = elf_local_got_refcounts (abfd);
1426 relend = relocs + sec->reloc_count;
1427 for (rel = relocs; rel < relend; rel++)
1429 unsigned long r_symndx;
1430 unsigned int r_type;
1431 struct elf_link_hash_entry *h = NULL;
1433 r_symndx = ELF32_R_SYM (rel->r_info);
1434 if (r_symndx >= symtab_hdr->sh_info)
1436 struct elf_s390_link_hash_entry *eh;
1437 struct elf_s390_dyn_relocs **pp;
1438 struct elf_s390_dyn_relocs *p;
1440 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
1441 eh = (struct elf_s390_link_hash_entry *) h;
1443 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; pp = &p->next)
1446 /* Everything must go for SEC. */
1452 r_type = ELF32_R_TYPE (rel->r_info);
1453 r_type = elf_s390_tls_transition (info, r_type, h != NULL);
1456 case R_390_TLS_LDM32:
1457 if (elf_s390_hash_table (info)->tls_ldm_got.refcount > 0)
1458 elf_s390_hash_table (info)->tls_ldm_got.refcount -= 1;
1461 case R_390_TLS_GD32:
1462 case R_390_TLS_IE32:
1463 case R_390_TLS_GOTIE12:
1464 case R_390_TLS_GOTIE20:
1465 case R_390_TLS_GOTIE32:
1466 case R_390_TLS_IEENT:
1471 case R_390_GOTOFF16:
1472 case R_390_GOTOFF32:
1474 case R_390_GOTPCDBL:
1478 if (h->got.refcount > 0)
1479 h->got.refcount -= 1;
1481 else if (local_got_refcounts != NULL)
1483 if (local_got_refcounts[r_symndx] > 0)
1484 local_got_refcounts[r_symndx] -= 1;
1501 case R_390_PLT16DBL:
1502 case R_390_PLT32DBL:
1504 case R_390_PLTOFF16:
1505 case R_390_PLTOFF32:
1508 if (h->plt.refcount > 0)
1509 h->plt.refcount -= 1;
1513 case R_390_GOTPLT12:
1514 case R_390_GOTPLT16:
1515 case R_390_GOTPLT20:
1516 case R_390_GOTPLT32:
1517 case R_390_GOTPLTENT:
1520 if (h->plt.refcount > 0)
1522 ((struct elf_s390_link_hash_entry *) h)->gotplt_refcount--;
1523 h->plt.refcount -= 1;
1526 else if (local_got_refcounts != NULL)
1528 if (local_got_refcounts[r_symndx] > 0)
1529 local_got_refcounts[r_symndx] -= 1;
1541 /* Make sure we emit a GOT entry if the symbol was supposed to have a PLT
1542 entry but we found we will not create any. Called when we find we will
1543 not have any PLT for this symbol, by for example
1544 elf_s390_adjust_dynamic_symbol when we're doing a proper dynamic link,
1545 or elf_s390_size_dynamic_sections if no dynamic sections will be
1546 created (we're only linking static objects). */
1549 elf_s390_adjust_gotplt (h)
1550 struct elf_s390_link_hash_entry *h;
1552 if (h->elf.root.type == bfd_link_hash_warning)
1553 h = (struct elf_s390_link_hash_entry *) h->elf.root.u.i.link;
1555 if (h->gotplt_refcount <= 0)
1558 /* We simply add the number of gotplt references to the number
1559 * of got references for this symbol. */
1560 h->elf.got.refcount += h->gotplt_refcount;
1561 h->gotplt_refcount = -1;
1564 /* Adjust a symbol defined by a dynamic object and referenced by a
1565 regular object. The current definition is in some section of the
1566 dynamic object, but we're not including those sections. We have to
1567 change the definition to something the rest of the link can
1571 elf_s390_adjust_dynamic_symbol (info, h)
1572 struct bfd_link_info *info;
1573 struct elf_link_hash_entry *h;
1575 struct elf_s390_link_hash_table *htab;
1577 unsigned int power_of_two;
1579 /* If this is a function, put it in the procedure linkage table. We
1580 will fill in the contents of the procedure linkage table later
1581 (although we could actually do it here). */
1582 if (h->type == STT_FUNC
1583 || (h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_PLT) != 0)
1585 if (h->plt.refcount <= 0
1587 && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC) == 0
1588 && (h->elf_link_hash_flags & ELF_LINK_HASH_REF_DYNAMIC) == 0
1589 && h->root.type != bfd_link_hash_undefweak
1590 && h->root.type != bfd_link_hash_undefined))
1592 /* This case can occur if we saw a PLT32 reloc in an input
1593 file, but the symbol was never referred to by a dynamic
1594 object, or if all references were garbage collected. In
1595 such a case, we don't actually need to build a procedure
1596 linkage table, and we can just do a PC32 reloc instead. */
1597 h->plt.offset = (bfd_vma) -1;
1598 h->elf_link_hash_flags &= ~ELF_LINK_HASH_NEEDS_PLT;
1599 elf_s390_adjust_gotplt((struct elf_s390_link_hash_entry *) h);
1605 /* It's possible that we incorrectly decided a .plt reloc was
1606 needed for an R_390_PC32 reloc to a non-function sym in
1607 check_relocs. We can't decide accurately between function and
1608 non-function syms in check-relocs; Objects loaded later in
1609 the link may change h->type. So fix it now. */
1610 h->plt.offset = (bfd_vma) -1;
1612 /* If this is a weak symbol, and there is a real definition, the
1613 processor independent code will have arranged for us to see the
1614 real definition first, and we can just use the same value. */
1615 if (h->weakdef != NULL)
1617 BFD_ASSERT (h->weakdef->root.type == bfd_link_hash_defined
1618 || h->weakdef->root.type == bfd_link_hash_defweak);
1619 h->root.u.def.section = h->weakdef->root.u.def.section;
1620 h->root.u.def.value = h->weakdef->root.u.def.value;
1621 if (ELIMINATE_COPY_RELOCS || info->nocopyreloc)
1622 h->elf_link_hash_flags
1623 = ((h->elf_link_hash_flags & ~ELF_LINK_NON_GOT_REF)
1624 | (h->weakdef->elf_link_hash_flags & ELF_LINK_NON_GOT_REF));
1628 /* This is a reference to a symbol defined by a dynamic object which
1629 is not a function. */
1631 /* If we are creating a shared library, we must presume that the
1632 only references to the symbol are via the global offset table.
1633 For such cases we need not do anything here; the relocations will
1634 be handled correctly by relocate_section. */
1638 /* If there are no references to this symbol that do not use the
1639 GOT, we don't need to generate a copy reloc. */
1640 if ((h->elf_link_hash_flags & ELF_LINK_NON_GOT_REF) == 0)
1643 /* If -z nocopyreloc was given, we won't generate them either. */
1644 if (info->nocopyreloc)
1646 h->elf_link_hash_flags &= ~ELF_LINK_NON_GOT_REF;
1650 if (ELIMINATE_COPY_RELOCS)
1652 struct elf_s390_link_hash_entry * eh;
1653 struct elf_s390_dyn_relocs *p;
1655 eh = (struct elf_s390_link_hash_entry *) h;
1656 for (p = eh->dyn_relocs; p != NULL; p = p->next)
1658 s = p->sec->output_section;
1659 if (s != NULL && (s->flags & SEC_READONLY) != 0)
1663 /* If we didn't find any dynamic relocs in read-only sections, then
1664 we'll be keeping the dynamic relocs and avoiding the copy reloc. */
1667 h->elf_link_hash_flags &= ~ELF_LINK_NON_GOT_REF;
1672 /* We must allocate the symbol in our .dynbss section, which will
1673 become part of the .bss section of the executable. There will be
1674 an entry for this symbol in the .dynsym section. The dynamic
1675 object will contain position independent code, so all references
1676 from the dynamic object to this symbol will go through the global
1677 offset table. The dynamic linker will use the .dynsym entry to
1678 determine the address it must put in the global offset table, so
1679 both the dynamic object and the regular object will refer to the
1680 same memory location for the variable. */
1682 htab = elf_s390_hash_table (info);
1684 /* We must generate a R_390_COPY reloc to tell the dynamic linker to
1685 copy the initial value out of the dynamic object and into the
1686 runtime process image. */
1687 if ((h->root.u.def.section->flags & SEC_ALLOC) != 0)
1689 htab->srelbss->size += sizeof (Elf32_External_Rela);
1690 h->elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_COPY;
1693 /* We need to figure out the alignment required for this symbol. I
1694 have no idea how ELF linkers handle this. */
1695 power_of_two = bfd_log2 (h->size);
1696 if (power_of_two > 3)
1699 /* Apply the required alignment. */
1701 s->size = BFD_ALIGN (s->size, (bfd_size_type) (1 << power_of_two));
1702 if (power_of_two > bfd_get_section_alignment (htab->elf.dynobj, s))
1704 if (! bfd_set_section_alignment (htab->elf.dynobj, s, power_of_two))
1708 /* Define the symbol as being at this point in the section. */
1709 h->root.u.def.section = s;
1710 h->root.u.def.value = s->size;
1712 /* Increment the section size to make room for the symbol. */
1718 /* Allocate space in .plt, .got and associated reloc sections for
1722 allocate_dynrelocs (h, inf)
1723 struct elf_link_hash_entry *h;
1726 struct bfd_link_info *info;
1727 struct elf_s390_link_hash_table *htab;
1728 struct elf_s390_link_hash_entry *eh;
1729 struct elf_s390_dyn_relocs *p;
1731 if (h->root.type == bfd_link_hash_indirect)
1734 if (h->root.type == bfd_link_hash_warning)
1735 /* When warning symbols are created, they **replace** the "real"
1736 entry in the hash table, thus we never get to see the real
1737 symbol in a hash traversal. So look at it now. */
1738 h = (struct elf_link_hash_entry *) h->root.u.i.link;
1740 info = (struct bfd_link_info *) inf;
1741 htab = elf_s390_hash_table (info);
1743 if (htab->elf.dynamic_sections_created
1744 && h->plt.refcount > 0
1745 && (ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
1746 || h->root.type != bfd_link_hash_undefweak))
1748 /* Make sure this symbol is output as a dynamic symbol.
1749 Undefined weak syms won't yet be marked as dynamic. */
1750 if (h->dynindx == -1
1751 && (h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) == 0)
1753 if (! bfd_elf_link_record_dynamic_symbol (info, h))
1758 || WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, 0, h))
1760 asection *s = htab->splt;
1762 /* If this is the first .plt entry, make room for the special
1765 s->size += PLT_FIRST_ENTRY_SIZE;
1767 h->plt.offset = s->size;
1769 /* If this symbol is not defined in a regular file, and we are
1770 not generating a shared library, then set the symbol to this
1771 location in the .plt. This is required to make function
1772 pointers compare as equal between the normal executable and
1773 the shared library. */
1775 && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0)
1777 h->root.u.def.section = s;
1778 h->root.u.def.value = h->plt.offset;
1781 /* Make room for this entry. */
1782 s->size += PLT_ENTRY_SIZE;
1784 /* We also need to make an entry in the .got.plt section, which
1785 will be placed in the .got section by the linker script. */
1786 htab->sgotplt->size += GOT_ENTRY_SIZE;
1788 /* We also need to make an entry in the .rela.plt section. */
1789 htab->srelplt->size += sizeof (Elf32_External_Rela);
1793 h->plt.offset = (bfd_vma) -1;
1794 h->elf_link_hash_flags &= ~ELF_LINK_HASH_NEEDS_PLT;
1795 elf_s390_adjust_gotplt((struct elf_s390_link_hash_entry *) h);
1800 h->plt.offset = (bfd_vma) -1;
1801 h->elf_link_hash_flags &= ~ELF_LINK_HASH_NEEDS_PLT;
1802 elf_s390_adjust_gotplt((struct elf_s390_link_hash_entry *) h);
1805 /* If R_390_TLS_{IE32,GOTIE32,GOTIE12,IEENT} symbol is now local to
1806 the binary, we can optimize a bit. IE32 and GOTIE32 get converted
1807 to R_390_TLS_LE32 requiring no TLS entry. For GOTIE12 and IEENT
1808 we can save the dynamic TLS relocation. */
1809 if (h->got.refcount > 0
1812 && elf_s390_hash_entry(h)->tls_type >= GOT_TLS_IE)
1814 if (elf_s390_hash_entry(h)->tls_type == GOT_TLS_IE_NLT)
1815 /* For the GOTIE access without a literal pool entry the offset has
1816 to be stored somewhere. The immediate value in the instruction
1817 is not bit enough so the value is stored in the got. */
1819 h->got.offset = htab->sgot->size;
1820 htab->sgot->size += GOT_ENTRY_SIZE;
1823 h->got.offset = (bfd_vma) -1;
1825 else if (h->got.refcount > 0)
1829 int tls_type = elf_s390_hash_entry(h)->tls_type;
1831 /* Make sure this symbol is output as a dynamic symbol.
1832 Undefined weak syms won't yet be marked as dynamic. */
1833 if (h->dynindx == -1
1834 && (h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) == 0)
1836 if (! bfd_elf_link_record_dynamic_symbol (info, h))
1841 h->got.offset = s->size;
1842 s->size += GOT_ENTRY_SIZE;
1843 /* R_390_TLS_GD32 needs 2 consecutive GOT slots. */
1844 if (tls_type == GOT_TLS_GD)
1845 s->size += GOT_ENTRY_SIZE;
1846 dyn = htab->elf.dynamic_sections_created;
1847 /* R_390_TLS_IE32 needs one dynamic relocation,
1848 R_390_TLS_GD32 needs one if local symbol and two if global. */
1849 if ((tls_type == GOT_TLS_GD && h->dynindx == -1)
1850 || tls_type >= GOT_TLS_IE)
1851 htab->srelgot->size += sizeof (Elf32_External_Rela);
1852 else if (tls_type == GOT_TLS_GD)
1853 htab->srelgot->size += 2 * sizeof (Elf32_External_Rela);
1854 else if ((ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
1855 || h->root.type != bfd_link_hash_undefweak)
1857 || WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, 0, h)))
1858 htab->srelgot->size += sizeof (Elf32_External_Rela);
1861 h->got.offset = (bfd_vma) -1;
1863 eh = (struct elf_s390_link_hash_entry *) h;
1864 if (eh->dyn_relocs == NULL)
1867 /* In the shared -Bsymbolic case, discard space allocated for
1868 dynamic pc-relative relocs against symbols which turn out to be
1869 defined in regular objects. For the normal shared case, discard
1870 space for pc-relative relocs that have become local due to symbol
1871 visibility changes. */
1875 if (SYMBOL_REFERENCES_LOCAL (info, h))
1877 struct elf_s390_dyn_relocs **pp;
1879 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; )
1881 p->count -= p->pc_count;
1890 /* Also discard relocs on undefined weak syms with non-default
1892 if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
1893 && h->root.type == bfd_link_hash_undefweak)
1894 eh->dyn_relocs = NULL;
1896 else if (ELIMINATE_COPY_RELOCS)
1898 /* For the non-shared case, discard space for relocs against
1899 symbols which turn out to need copy relocs or are not
1902 if ((h->elf_link_hash_flags & ELF_LINK_NON_GOT_REF) == 0
1903 && (((h->elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC) != 0
1904 && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0)
1905 || (htab->elf.dynamic_sections_created
1906 && (h->root.type == bfd_link_hash_undefweak
1907 || h->root.type == bfd_link_hash_undefined))))
1909 /* Make sure this symbol is output as a dynamic symbol.
1910 Undefined weak syms won't yet be marked as dynamic. */
1911 if (h->dynindx == -1
1912 && (h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) == 0)
1914 if (! bfd_elf_link_record_dynamic_symbol (info, h))
1918 /* If that succeeded, we know we'll be keeping all the
1920 if (h->dynindx != -1)
1924 eh->dyn_relocs = NULL;
1929 /* Finally, allocate space. */
1930 for (p = eh->dyn_relocs; p != NULL; p = p->next)
1932 asection *sreloc = elf_section_data (p->sec)->sreloc;
1934 sreloc->size += p->count * sizeof (Elf32_External_Rela);
1940 /* Find any dynamic relocs that apply to read-only sections. */
1943 readonly_dynrelocs (h, inf)
1944 struct elf_link_hash_entry *h;
1947 struct elf_s390_link_hash_entry *eh;
1948 struct elf_s390_dyn_relocs *p;
1950 if (h->root.type == bfd_link_hash_warning)
1951 h = (struct elf_link_hash_entry *) h->root.u.i.link;
1953 eh = (struct elf_s390_link_hash_entry *) h;
1954 for (p = eh->dyn_relocs; p != NULL; p = p->next)
1956 asection *s = p->sec->output_section;
1958 if (s != NULL && (s->flags & SEC_READONLY) != 0)
1960 struct bfd_link_info *info = (struct bfd_link_info *) inf;
1962 info->flags |= DF_TEXTREL;
1964 /* Not an error, just cut short the traversal. */
1971 /* Set the sizes of the dynamic sections. */
1974 elf_s390_size_dynamic_sections (output_bfd, info)
1975 bfd *output_bfd ATTRIBUTE_UNUSED;
1976 struct bfd_link_info *info;
1978 struct elf_s390_link_hash_table *htab;
1984 htab = elf_s390_hash_table (info);
1985 dynobj = htab->elf.dynobj;
1989 if (htab->elf.dynamic_sections_created)
1991 /* Set the contents of the .interp section to the interpreter. */
1992 if (info->executable)
1994 s = bfd_get_section_by_name (dynobj, ".interp");
1997 s->size = sizeof ELF_DYNAMIC_INTERPRETER;
1998 s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
2002 /* Set up .got offsets for local syms, and space for local dynamic
2004 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next)
2006 bfd_signed_vma *local_got;
2007 bfd_signed_vma *end_local_got;
2008 char *local_tls_type;
2009 bfd_size_type locsymcount;
2010 Elf_Internal_Shdr *symtab_hdr;
2013 if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour)
2016 for (s = ibfd->sections; s != NULL; s = s->next)
2018 struct elf_s390_dyn_relocs *p;
2020 for (p = *((struct elf_s390_dyn_relocs **)
2021 &elf_section_data (s)->local_dynrel);
2025 if (!bfd_is_abs_section (p->sec)
2026 && bfd_is_abs_section (p->sec->output_section))
2028 /* Input section has been discarded, either because
2029 it is a copy of a linkonce section or due to
2030 linker script /DISCARD/, so we'll be discarding
2033 else if (p->count != 0)
2035 srela = elf_section_data (p->sec)->sreloc;
2036 srela->size += p->count * sizeof (Elf32_External_Rela);
2037 if ((p->sec->output_section->flags & SEC_READONLY) != 0)
2038 info->flags |= DF_TEXTREL;
2043 local_got = elf_local_got_refcounts (ibfd);
2047 symtab_hdr = &elf_tdata (ibfd)->symtab_hdr;
2048 locsymcount = symtab_hdr->sh_info;
2049 end_local_got = local_got + locsymcount;
2050 local_tls_type = elf_s390_local_got_tls_type (ibfd);
2052 srela = htab->srelgot;
2053 for (; local_got < end_local_got; ++local_got, ++local_tls_type)
2057 *local_got = s->size;
2058 s->size += GOT_ENTRY_SIZE;
2059 if (*local_tls_type == GOT_TLS_GD)
2060 s->size += GOT_ENTRY_SIZE;
2062 srela->size += sizeof (Elf32_External_Rela);
2065 *local_got = (bfd_vma) -1;
2069 if (htab->tls_ldm_got.refcount > 0)
2071 /* Allocate 2 got entries and 1 dynamic reloc for R_390_TLS_LDM32
2073 htab->tls_ldm_got.offset = htab->sgot->size;
2074 htab->sgot->size += 2 * GOT_ENTRY_SIZE;
2075 htab->srelgot->size += sizeof (Elf32_External_Rela);
2078 htab->tls_ldm_got.offset = -1;
2080 /* Allocate global sym .plt and .got entries, and space for global
2081 sym dynamic relocs. */
2082 elf_link_hash_traverse (&htab->elf, allocate_dynrelocs, (PTR) info);
2084 /* We now have determined the sizes of the various dynamic sections.
2085 Allocate memory for them. */
2087 for (s = dynobj->sections; s != NULL; s = s->next)
2089 if ((s->flags & SEC_LINKER_CREATED) == 0)
2094 || s == htab->sgotplt)
2096 /* Strip this section if we don't need it; see the
2099 else if (strncmp (bfd_get_section_name (dynobj, s), ".rela", 5) == 0)
2104 /* We use the reloc_count field as a counter if we need
2105 to copy relocs into the output file. */
2110 /* It's not one of our sections, so don't allocate space. */
2116 /* If we don't need this section, strip it from the
2117 output file. This is to handle .rela.bss and
2118 .rela.plt. We must create it in
2119 create_dynamic_sections, because it must be created
2120 before the linker maps input sections to output
2121 sections. The linker does that before
2122 adjust_dynamic_symbol is called, and it is that
2123 function which decides whether anything needs to go
2124 into these sections. */
2126 _bfd_strip_section_from_output (info, s);
2130 /* Allocate memory for the section contents. We use bfd_zalloc
2131 here in case unused entries are not reclaimed before the
2132 section's contents are written out. This should not happen,
2133 but this way if it does, we get a R_390_NONE reloc instead
2135 s->contents = (bfd_byte *) bfd_zalloc (dynobj, s->size);
2136 if (s->contents == NULL)
2140 if (htab->elf.dynamic_sections_created)
2142 /* Add some entries to the .dynamic section. We fill in the
2143 values later, in elf_s390_finish_dynamic_sections, but we
2144 must add the entries now so that we get the correct size for
2145 the .dynamic section. The DT_DEBUG entry is filled in by the
2146 dynamic linker and used by the debugger. */
2147 #define add_dynamic_entry(TAG, VAL) \
2148 _bfd_elf_add_dynamic_entry (info, TAG, VAL)
2150 if (info->executable)
2152 if (!add_dynamic_entry (DT_DEBUG, 0))
2156 if (htab->splt->size != 0)
2158 if (!add_dynamic_entry (DT_PLTGOT, 0)
2159 || !add_dynamic_entry (DT_PLTRELSZ, 0)
2160 || !add_dynamic_entry (DT_PLTREL, DT_RELA)
2161 || !add_dynamic_entry (DT_JMPREL, 0))
2167 if (!add_dynamic_entry (DT_RELA, 0)
2168 || !add_dynamic_entry (DT_RELASZ, 0)
2169 || !add_dynamic_entry (DT_RELAENT, sizeof (Elf32_External_Rela)))
2172 /* If any dynamic relocs apply to a read-only section,
2173 then we need a DT_TEXTREL entry. */
2174 if ((info->flags & DF_TEXTREL) == 0)
2175 elf_link_hash_traverse (&htab->elf, readonly_dynrelocs,
2178 if ((info->flags & DF_TEXTREL) != 0)
2180 if (!add_dynamic_entry (DT_TEXTREL, 0))
2185 #undef add_dynamic_entry
2190 /* Return the base VMA address which should be subtracted from real addresses
2191 when resolving @dtpoff relocation.
2192 This is PT_TLS segment p_vaddr. */
2196 struct bfd_link_info *info;
2198 /* If tls_sec is NULL, we should have signalled an error already. */
2199 if (elf_hash_table (info)->tls_sec == NULL)
2201 return elf_hash_table (info)->tls_sec->vma;
2204 /* Return the relocation value for @tpoff relocation
2205 if STT_TLS virtual address is ADDRESS. */
2208 tpoff (info, address)
2209 struct bfd_link_info *info;
2212 struct elf_link_hash_table *htab = elf_hash_table (info);
2214 /* If tls_sec is NULL, we should have signalled an error already. */
2215 if (htab->tls_sec == NULL)
2217 return htab->tls_size + htab->tls_sec->vma - address;
2220 /* Complain if TLS instruction relocation is against an invalid
2224 invalid_tls_insn (input_bfd, input_section, rel)
2226 asection *input_section;
2227 Elf_Internal_Rela *rel;
2229 reloc_howto_type *howto;
2231 howto = elf_howto_table + ELF32_R_TYPE (rel->r_info);
2232 (*_bfd_error_handler)
2233 (_("%B(%A+0x%lx): invalid instruction for TLS relocation %s"),
2236 (long) rel->r_offset,
2240 /* Relocate a 390 ELF section. */
2243 elf_s390_relocate_section (output_bfd, info, input_bfd, input_section,
2244 contents, relocs, local_syms, local_sections)
2246 struct bfd_link_info *info;
2248 asection *input_section;
2250 Elf_Internal_Rela *relocs;
2251 Elf_Internal_Sym *local_syms;
2252 asection **local_sections;
2254 struct elf_s390_link_hash_table *htab;
2255 Elf_Internal_Shdr *symtab_hdr;
2256 struct elf_link_hash_entry **sym_hashes;
2257 bfd_vma *local_got_offsets;
2258 Elf_Internal_Rela *rel;
2259 Elf_Internal_Rela *relend;
2261 if (info->relocatable)
2264 htab = elf_s390_hash_table (info);
2265 symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
2266 sym_hashes = elf_sym_hashes (input_bfd);
2267 local_got_offsets = elf_local_got_offsets (input_bfd);
2270 relend = relocs + input_section->reloc_count;
2271 for (; rel < relend; rel++)
2273 unsigned int r_type;
2274 reloc_howto_type *howto;
2275 unsigned long r_symndx;
2276 struct elf_link_hash_entry *h;
2277 Elf_Internal_Sym *sym;
2281 bfd_boolean unresolved_reloc;
2282 bfd_reloc_status_type r;
2285 r_type = ELF32_R_TYPE (rel->r_info);
2286 if (r_type == (int) R_390_GNU_VTINHERIT
2287 || r_type == (int) R_390_GNU_VTENTRY)
2289 if (r_type >= (int) R_390_max)
2291 bfd_set_error (bfd_error_bad_value);
2295 howto = elf_howto_table + r_type;
2296 r_symndx = ELF32_R_SYM (rel->r_info);
2298 /* This is a final link. */
2302 unresolved_reloc = FALSE;
2303 if (r_symndx < symtab_hdr->sh_info)
2305 sym = local_syms + r_symndx;
2306 sec = local_sections[r_symndx];
2307 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
2311 bfd_boolean warned ATTRIBUTE_UNUSED;
2313 RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
2314 r_symndx, symtab_hdr, sym_hashes,
2316 unresolved_reloc, warned);
2321 case R_390_GOTPLT12:
2322 case R_390_GOTPLT16:
2323 case R_390_GOTPLT20:
2324 case R_390_GOTPLT32:
2325 case R_390_GOTPLTENT:
2326 /* There are three cases for a GOTPLT relocation. 1) The
2327 relocation is against the jump slot entry of a plt that
2328 will get emitted to the output file. 2) The relocation
2329 is against the jump slot of a plt entry that has been
2330 removed. elf_s390_adjust_gotplt has created a GOT entry
2331 as replacement. 3) The relocation is against a local symbol.
2332 Cases 2) and 3) are the same as the GOT relocation code
2333 so we just have to test for case 1 and fall through for
2335 if (h != NULL && h->plt.offset != (bfd_vma) -1)
2340 Current offset - size first entry / entry size. */
2341 plt_index = (h->plt.offset - PLT_FIRST_ENTRY_SIZE) /
2344 /* Offset in GOT is PLT index plus GOT headers(3) times 4,
2346 relocation = (plt_index + 3) * GOT_ENTRY_SIZE;
2347 unresolved_reloc = FALSE;
2349 if (r_type == R_390_GOTPLTENT)
2350 relocation += htab->sgot->output_section->vma;
2360 /* Relocation is to the entry for this symbol in the global
2362 if (htab->sgot == NULL)
2369 off = h->got.offset;
2370 dyn = htab->elf.dynamic_sections_created;
2371 if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared, h)
2375 || (h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL))
2376 && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR))
2377 || (ELF_ST_VISIBILITY (h->other)
2378 && h->root.type == bfd_link_hash_undefweak))
2380 /* This is actually a static link, or it is a
2381 -Bsymbolic link and the symbol is defined
2382 locally, or the symbol was forced to be local
2383 because of a version file. We must initialize
2384 this entry in the global offset table. Since the
2385 offset must always be a multiple of 2, we use the
2386 least significant bit to record whether we have
2387 initialized it already.
2389 When doing a dynamic link, we create a .rel.got
2390 relocation entry to initialize the value. This
2391 is done in the finish_dynamic_symbol routine. */
2396 bfd_put_32 (output_bfd, relocation,
2397 htab->sgot->contents + off);
2402 unresolved_reloc = FALSE;
2406 if (local_got_offsets == NULL)
2409 off = local_got_offsets[r_symndx];
2411 /* The offset must always be a multiple of 4. We use
2412 the least significant bit to record whether we have
2413 already generated the necessary reloc. */
2418 bfd_put_32 (output_bfd, relocation,
2419 htab->sgot->contents + off);
2424 Elf_Internal_Rela outrel;
2427 srelgot = htab->srelgot;
2428 if (srelgot == NULL)
2431 outrel.r_offset = (htab->sgot->output_section->vma
2432 + htab->sgot->output_offset
2434 outrel.r_info = ELF32_R_INFO (0, R_390_RELATIVE);
2435 outrel.r_addend = relocation;
2436 loc = srelgot->contents;
2437 loc += srelgot->reloc_count++ * sizeof (Elf32_External_Rela);
2438 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
2441 local_got_offsets[r_symndx] |= 1;
2445 if (off >= (bfd_vma) -2)
2448 relocation = htab->sgot->output_offset + off;
2450 /* For @GOTENT the relocation is against the offset between
2451 the instruction and the symbols entry in the GOT and not
2452 between the start of the GOT and the symbols entry. We
2453 add the vma of the GOT to get the correct value. */
2454 if ( r_type == R_390_GOTENT
2455 || r_type == R_390_GOTPLTENT)
2456 relocation += htab->sgot->output_section->vma;
2460 case R_390_GOTOFF16:
2461 case R_390_GOTOFF32:
2462 /* Relocation is relative to the start of the global offset
2465 /* Note that sgot->output_offset is not involved in this
2466 calculation. We always want the start of .got. If we
2467 defined _GLOBAL_OFFSET_TABLE in a different way, as is
2468 permitted by the ABI, we might have to change this
2470 relocation -= htab->sgot->output_section->vma;
2474 case R_390_GOTPCDBL:
2475 /* Use global offset table as symbol value. */
2476 relocation = htab->sgot->output_section->vma;
2477 unresolved_reloc = FALSE;
2480 case R_390_PLT16DBL:
2481 case R_390_PLT32DBL:
2483 /* Relocation is to the entry for this symbol in the
2484 procedure linkage table. */
2486 /* Resolve a PLT32 reloc against a local symbol directly,
2487 without using the procedure linkage table. */
2491 if (h->plt.offset == (bfd_vma) -1
2492 || htab->splt == NULL)
2494 /* We didn't make a PLT entry for this symbol. This
2495 happens when statically linking PIC code, or when
2496 using -Bsymbolic. */
2500 relocation = (htab->splt->output_section->vma
2501 + htab->splt->output_offset
2503 unresolved_reloc = FALSE;
2506 case R_390_PLTOFF16:
2507 case R_390_PLTOFF32:
2508 /* Relocation is to the entry for this symbol in the
2509 procedure linkage table relative to the start of the GOT. */
2511 /* For local symbols or if we didn't make a PLT entry for
2512 this symbol resolve the symbol directly. */
2514 || h->plt.offset == (bfd_vma) -1
2515 || htab->splt == NULL)
2517 relocation -= htab->sgot->output_section->vma;
2521 relocation = (htab->splt->output_section->vma
2522 + htab->splt->output_offset
2524 - htab->sgot->output_section->vma);
2525 unresolved_reloc = FALSE;
2535 /* r_symndx will be zero only for relocs against symbols
2536 from removed linkonce sections, or sections discarded by
2539 || (input_section->flags & SEC_ALLOC) == 0)
2544 || ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
2545 || h->root.type != bfd_link_hash_undefweak)
2546 && ((r_type != R_390_PC16
2547 && r_type != R_390_PC16DBL
2548 && r_type != R_390_PC32DBL
2549 && r_type != R_390_PC32)
2551 && !SYMBOL_REFERENCES_LOCAL (info, h))))
2552 || (ELIMINATE_COPY_RELOCS
2556 && (h->elf_link_hash_flags & ELF_LINK_NON_GOT_REF) == 0
2557 && (((h->elf_link_hash_flags
2558 & ELF_LINK_HASH_DEF_DYNAMIC) != 0
2559 && (h->elf_link_hash_flags
2560 & ELF_LINK_HASH_DEF_REGULAR) == 0)
2561 || h->root.type == bfd_link_hash_undefweak
2562 || h->root.type == bfd_link_hash_undefined)))
2564 Elf_Internal_Rela outrel;
2565 bfd_boolean skip, relocate;
2569 /* When generating a shared object, these relocations
2570 are copied into the output file to be resolved at run
2577 _bfd_elf_section_offset (output_bfd, info, input_section,
2579 if (outrel.r_offset == (bfd_vma) -1)
2581 else if (outrel.r_offset == (bfd_vma) -2)
2582 skip = TRUE, relocate = TRUE;
2583 outrel.r_offset += (input_section->output_section->vma
2584 + input_section->output_offset);
2587 memset (&outrel, 0, sizeof outrel);
2590 && (r_type == R_390_PC16
2591 || r_type == R_390_PC16DBL
2592 || r_type == R_390_PC32DBL
2593 || r_type == R_390_PC32
2596 || (h->elf_link_hash_flags
2597 & ELF_LINK_HASH_DEF_REGULAR) == 0))
2599 outrel.r_info = ELF32_R_INFO (h->dynindx, r_type);
2600 outrel.r_addend = rel->r_addend;
2604 /* This symbol is local, or marked to become local. */
2605 outrel.r_addend = relocation + rel->r_addend;
2606 if (r_type == R_390_32)
2609 outrel.r_info = ELF32_R_INFO (0, R_390_RELATIVE);
2615 if (bfd_is_abs_section (sec))
2617 else if (sec == NULL || sec->owner == NULL)
2619 bfd_set_error(bfd_error_bad_value);
2626 osec = sec->output_section;
2627 sindx = elf_section_data (osec)->dynindx;
2628 BFD_ASSERT (sindx > 0);
2630 /* We are turning this relocation into one
2631 against a section symbol, so subtract out
2632 the output section's address but not the
2633 offset of the input section in the output
2636 outrel.r_addend -= osec->vma;
2638 outrel.r_info = ELF32_R_INFO (sindx, r_type);
2642 sreloc = elf_section_data (input_section)->sreloc;
2646 loc = sreloc->contents;
2647 loc += sreloc->reloc_count++ * sizeof (Elf32_External_Rela);
2648 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
2650 /* If this reloc is against an external symbol, we do
2651 not want to fiddle with the addend. Otherwise, we
2652 need to include the symbol value so that it becomes
2653 an addend for the dynamic reloc. */
2659 /* Relocations for tls literal pool entries. */
2660 case R_390_TLS_IE32:
2663 Elf_Internal_Rela outrel;
2667 outrel.r_offset = rel->r_offset
2668 + input_section->output_section->vma
2669 + input_section->output_offset;
2670 outrel.r_info = ELF32_R_INFO (0, R_390_RELATIVE);
2671 sreloc = elf_section_data (input_section)->sreloc;
2674 loc = sreloc->contents;
2675 loc += sreloc->reloc_count++ * sizeof (Elf32_External_Rela);
2676 bfd_elf32_swap_reloc_out (output_bfd, &outrel, loc);
2680 case R_390_TLS_GD32:
2681 case R_390_TLS_GOTIE32:
2682 r_type = elf_s390_tls_transition (info, r_type, h == NULL);
2683 tls_type = GOT_UNKNOWN;
2684 if (h == NULL && local_got_offsets)
2685 tls_type = elf_s390_local_got_tls_type (input_bfd) [r_symndx];
2688 tls_type = elf_s390_hash_entry(h)->tls_type;
2689 if (!info->shared && h->dynindx == -1 && tls_type >= GOT_TLS_IE)
2690 r_type = R_390_TLS_LE32;
2692 if (r_type == R_390_TLS_GD32 && tls_type >= GOT_TLS_IE)
2693 r_type = R_390_TLS_IE32;
2695 if (r_type == R_390_TLS_LE32)
2697 /* This relocation gets optimized away by the local exec
2698 access optimization. */
2699 BFD_ASSERT (! unresolved_reloc);
2700 bfd_put_32 (output_bfd, -tpoff (info, relocation),
2701 contents + rel->r_offset);
2705 if (htab->sgot == NULL)
2709 off = h->got.offset;
2712 if (local_got_offsets == NULL)
2715 off = local_got_offsets[r_symndx];
2724 Elf_Internal_Rela outrel;
2728 if (htab->srelgot == NULL)
2731 outrel.r_offset = (htab->sgot->output_section->vma
2732 + htab->sgot->output_offset + off);
2734 indx = h && h->dynindx != -1 ? h->dynindx : 0;
2735 if (r_type == R_390_TLS_GD32)
2736 dr_type = R_390_TLS_DTPMOD;
2738 dr_type = R_390_TLS_TPOFF;
2739 if (dr_type == R_390_TLS_TPOFF && indx == 0)
2740 outrel.r_addend = relocation - dtpoff_base (info);
2742 outrel.r_addend = 0;
2743 outrel.r_info = ELF32_R_INFO (indx, dr_type);
2744 loc = htab->srelgot->contents;
2745 loc += htab->srelgot->reloc_count++
2746 * sizeof (Elf32_External_Rela);
2747 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
2749 if (r_type == R_390_TLS_GD32)
2753 BFD_ASSERT (! unresolved_reloc);
2754 bfd_put_32 (output_bfd,
2755 relocation - dtpoff_base (info),
2756 htab->sgot->contents + off + GOT_ENTRY_SIZE);
2760 outrel.r_info = ELF32_R_INFO (indx, R_390_TLS_DTPOFF);
2761 outrel.r_offset += GOT_ENTRY_SIZE;
2762 outrel.r_addend = 0;
2763 htab->srelgot->reloc_count++;
2764 loc += sizeof (Elf32_External_Rela);
2765 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
2772 local_got_offsets[r_symndx] |= 1;
2775 if (off >= (bfd_vma) -2)
2777 if (r_type == ELF32_R_TYPE (rel->r_info))
2779 relocation = htab->sgot->output_offset + off;
2780 if (r_type == R_390_TLS_IE32 || r_type == R_390_TLS_IEENT)
2781 relocation += htab->sgot->output_section->vma;
2782 unresolved_reloc = FALSE;
2786 bfd_put_32 (output_bfd, htab->sgot->output_offset + off,
2787 contents + rel->r_offset);
2792 case R_390_TLS_GOTIE12:
2793 case R_390_TLS_GOTIE20:
2794 case R_390_TLS_IEENT:
2797 if (local_got_offsets == NULL)
2799 off = local_got_offsets[r_symndx];
2801 goto emit_tls_relocs;
2805 off = h->got.offset;
2806 tls_type = elf_s390_hash_entry(h)->tls_type;
2807 if (info->shared || h->dynindx != -1 || tls_type < GOT_TLS_IE)
2808 goto emit_tls_relocs;
2811 if (htab->sgot == NULL)
2814 BFD_ASSERT (! unresolved_reloc);
2815 bfd_put_32 (output_bfd, -tpoff (info, relocation),
2816 htab->sgot->contents + off);
2817 relocation = htab->sgot->output_offset + off;
2818 if (r_type == R_390_TLS_IEENT)
2819 relocation += htab->sgot->output_section->vma;
2820 unresolved_reloc = FALSE;
2823 case R_390_TLS_LDM32:
2825 /* The literal pool entry this relocation refers to gets ignored
2826 by the optimized code of the local exec model. Do nothing
2827 and the value will turn out zero. */
2830 if (htab->sgot == NULL)
2833 off = htab->tls_ldm_got.offset;
2838 Elf_Internal_Rela outrel;
2841 if (htab->srelgot == NULL)
2844 outrel.r_offset = (htab->sgot->output_section->vma
2845 + htab->sgot->output_offset + off);
2847 bfd_put_32 (output_bfd, 0,
2848 htab->sgot->contents + off + GOT_ENTRY_SIZE);
2849 outrel.r_info = ELF32_R_INFO (0, R_390_TLS_DTPMOD);
2850 outrel.r_addend = 0;
2851 loc = htab->srelgot->contents;
2852 loc += htab->srelgot->reloc_count++
2853 * sizeof (Elf32_External_Rela);
2854 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
2855 htab->tls_ldm_got.offset |= 1;
2857 relocation = htab->sgot->output_offset + off;
2858 unresolved_reloc = FALSE;
2861 case R_390_TLS_LE32:
2864 /* Linking a shared library with non-fpic code requires
2865 a R_390_TLS_TPOFF relocation. */
2866 Elf_Internal_Rela outrel;
2871 outrel.r_offset = rel->r_offset
2872 + input_section->output_section->vma
2873 + input_section->output_offset;
2874 if (h != NULL && h->dynindx != -1)
2878 outrel.r_info = ELF32_R_INFO (indx, R_390_TLS_TPOFF);
2880 outrel.r_addend = relocation - dtpoff_base (info);
2882 outrel.r_addend = 0;
2883 sreloc = elf_section_data (input_section)->sreloc;
2886 loc = sreloc->contents;
2887 loc += sreloc->reloc_count++ * sizeof (Elf32_External_Rela);
2888 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
2892 BFD_ASSERT (! unresolved_reloc);
2893 bfd_put_32 (output_bfd, -tpoff (info, relocation),
2894 contents + rel->r_offset);
2898 case R_390_TLS_LDO32:
2899 if (info->shared || (input_section->flags & SEC_CODE) == 0)
2900 relocation -= dtpoff_base (info);
2902 /* When converting LDO to LE, we must negate. */
2903 relocation = -tpoff (info, relocation);
2906 /* Relocations for tls instructions. */
2907 case R_390_TLS_LOAD:
2908 case R_390_TLS_GDCALL:
2909 case R_390_TLS_LDCALL:
2910 tls_type = GOT_UNKNOWN;
2911 if (h == NULL && local_got_offsets)
2912 tls_type = elf_s390_local_got_tls_type (input_bfd) [r_symndx];
2914 tls_type = elf_s390_hash_entry(h)->tls_type;
2916 if (tls_type == GOT_TLS_GD)
2919 if (r_type == R_390_TLS_LOAD)
2921 if (!info->shared && (h == NULL || h->dynindx == -1))
2923 /* IE->LE transition. Four valid cases:
2924 l %rx,0(0,%ry) -> lr %rx,%ry + bcr 0,0
2925 l %rx,0(%ry,0) -> lr %rx,%ry + bcr 0,0
2926 l %rx,0(%ry,%r12) -> lr %rx,%ry + bcr 0,0
2927 l %rx,0(%r12,%ry) -> lr %rx,%ry + bcr 0,0 */
2928 unsigned int insn, ry;
2930 insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
2932 if ((insn & 0xff00f000) == 0x58000000)
2933 /* l %rx,0(%ry,0) -> lr %rx,%ry + bcr 0,0 */
2934 ry = (insn & 0x000f0000);
2935 else if ((insn & 0xff0f0000) == 0x58000000)
2936 /* l %rx,0(0,%ry) -> lr %rx,%ry + bcr 0,0 */
2937 ry = (insn & 0x0000f000) << 4;
2938 else if ((insn & 0xff00f000) == 0x5800c000)
2939 /* l %rx,0(%ry,%r12) -> lr %rx,%ry + bcr 0,0 */
2940 ry = (insn & 0x000f0000);
2941 else if ((insn & 0xff0f0000) == 0x580c0000)
2942 /* l %rx,0(%r12,%ry) -> lr %rx,%ry + bcr 0,0 */
2943 ry = (insn & 0x0000f000) << 4;
2945 invalid_tls_insn (input_bfd, input_section, rel);
2946 insn = 0x18000700 | (insn & 0x00f00000) | ry;
2947 bfd_put_32 (output_bfd, insn, contents + rel->r_offset);
2950 else if (r_type == R_390_TLS_GDCALL)
2954 insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
2955 if ((insn & 0xff000fff) != 0x4d000000)
2956 invalid_tls_insn (input_bfd, input_section, rel);
2957 if (!info->shared && (h == NULL || h->dynindx == -1))
2958 /* GD->LE transition.
2959 bas %r14,0(%rx,%r13) -> bc 0,0 */
2962 /* GD->IE transition.
2963 bas %r14,0(%rx,%r13) -> l %r2,0(%r2,%r12) */
2965 bfd_put_32 (output_bfd, insn, contents + rel->r_offset);
2967 else if (r_type == R_390_TLS_LDCALL)
2973 insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
2974 if ((insn & 0xff000fff) != 0x4d000000)
2975 invalid_tls_insn (input_bfd, input_section, rel);
2976 /* LD->LE transition.
2977 bas %r14,0(%rx,%r13) -> bc 0,0 */
2979 bfd_put_32 (output_bfd, insn, contents + rel->r_offset);
2988 /* Dynamic relocs are not propagated for SEC_DEBUGGING sections
2989 because such sections are not SEC_ALLOC and thus ld.so will
2990 not process them. */
2991 if (unresolved_reloc
2992 && !((input_section->flags & SEC_DEBUGGING) != 0
2993 && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC) != 0))
2994 (*_bfd_error_handler)
2995 (_("%B(%A+0x%lx): unresolvable relocation against symbol `%s'"),
2998 (long) rel->r_offset,
2999 h->root.root.string);
3001 if (r_type == R_390_20
3002 || r_type == R_390_GOT20
3003 || r_type == R_390_GOTPLT20
3004 || r_type == R_390_TLS_GOTIE20)
3006 relocation += rel->r_addend;
3007 relocation = (relocation&0xfff) << 8 | (relocation&0xff000) >> 12;
3008 r = _bfd_final_link_relocate (howto, input_bfd, input_section,
3009 contents, rel->r_offset,
3013 r = _bfd_final_link_relocate (howto, input_bfd, input_section,
3014 contents, rel->r_offset,
3015 relocation, rel->r_addend);
3017 if (r != bfd_reloc_ok)
3022 name = h->root.root.string;
3025 name = bfd_elf_string_from_elf_section (input_bfd,
3026 symtab_hdr->sh_link,
3031 name = bfd_section_name (input_bfd, sec);
3034 if (r == bfd_reloc_overflow)
3037 if (! ((*info->callbacks->reloc_overflow)
3038 (info, name, howto->name, (bfd_vma) 0,
3039 input_bfd, input_section, rel->r_offset)))
3044 (*_bfd_error_handler)
3045 (_("%B(%A+0x%lx): reloc against `%s': error %d"),
3046 input_bfd, input_section,
3047 (long) rel->r_offset, name, (int) r);
3056 /* Finish up dynamic symbol handling. We set the contents of various
3057 dynamic sections here. */
3060 elf_s390_finish_dynamic_symbol (output_bfd, info, h, sym)
3062 struct bfd_link_info *info;
3063 struct elf_link_hash_entry *h;
3064 Elf_Internal_Sym *sym;
3066 struct elf_s390_link_hash_table *htab;
3068 htab = elf_s390_hash_table (info);
3070 if (h->plt.offset != (bfd_vma) -1)
3074 Elf_Internal_Rela rela;
3076 bfd_vma relative_offset;
3078 /* This symbol has an entry in the procedure linkage table. Set
3080 if (h->dynindx == -1
3081 || htab->splt == NULL
3082 || htab->sgotplt == NULL
3083 || htab->srelplt == NULL)
3087 Current offset - size first entry / entry size. */
3088 plt_index = (h->plt.offset - PLT_FIRST_ENTRY_SIZE) / PLT_ENTRY_SIZE;
3090 /* Offset in GOT is PLT index plus GOT headers(3) times 4,
3092 got_offset = (plt_index + 3) * GOT_ENTRY_SIZE;
3094 /* S390 uses halfwords for relative branch calc! */
3095 relative_offset = - ((PLT_FIRST_ENTRY_SIZE +
3096 (PLT_ENTRY_SIZE * plt_index) + 18) / 2);
3097 /* If offset is > 32768, branch to a previous branch
3098 390 can only handle +-64 K jumps. */
3099 if ( -32768 > (int) relative_offset )
3101 = -(unsigned) (((65536 / PLT_ENTRY_SIZE - 1) * PLT_ENTRY_SIZE) / 2);
3103 /* Fill in the entry in the procedure linkage table. */
3106 bfd_put_32 (output_bfd, (bfd_vma) PLT_ENTRY_WORD0,
3107 htab->splt->contents + h->plt.offset);
3108 bfd_put_32 (output_bfd, (bfd_vma) PLT_ENTRY_WORD1,
3109 htab->splt->contents + h->plt.offset + 4);
3110 bfd_put_32 (output_bfd, (bfd_vma) PLT_ENTRY_WORD2,
3111 htab->splt->contents + h->plt.offset + 8);
3112 bfd_put_32 (output_bfd, (bfd_vma) PLT_ENTRY_WORD3,
3113 htab->splt->contents + h->plt.offset + 12);
3114 bfd_put_32 (output_bfd, (bfd_vma) PLT_ENTRY_WORD4,
3115 htab->splt->contents + h->plt.offset + 16);
3116 bfd_put_32 (output_bfd, (bfd_vma) 0+(relative_offset << 16),
3117 htab->splt->contents + h->plt.offset + 20);
3118 bfd_put_32 (output_bfd,
3119 (htab->sgotplt->output_section->vma
3120 + htab->sgotplt->output_offset
3122 htab->splt->contents + h->plt.offset + 24);
3124 else if (got_offset < 4096)
3126 bfd_put_32 (output_bfd, (bfd_vma) PLT_PIC12_ENTRY_WORD0 + got_offset,
3127 htab->splt->contents + h->plt.offset);
3128 bfd_put_32 (output_bfd, (bfd_vma) PLT_PIC12_ENTRY_WORD1,
3129 htab->splt->contents + h->plt.offset + 4);
3130 bfd_put_32 (output_bfd, (bfd_vma) PLT_PIC12_ENTRY_WORD2,
3131 htab->splt->contents + h->plt.offset + 8);
3132 bfd_put_32 (output_bfd, (bfd_vma) PLT_PIC12_ENTRY_WORD3,
3133 htab->splt->contents + h->plt.offset + 12);
3134 bfd_put_32 (output_bfd, (bfd_vma) PLT_PIC12_ENTRY_WORD4,
3135 htab->splt->contents + h->plt.offset + 16);
3136 bfd_put_32 (output_bfd, (bfd_vma) 0+(relative_offset << 16),
3137 htab->splt->contents + h->plt.offset + 20);
3138 bfd_put_32 (output_bfd, (bfd_vma) 0,
3139 htab->splt->contents + h->plt.offset + 24);
3141 else if (got_offset < 32768)
3143 bfd_put_32 (output_bfd, (bfd_vma) PLT_PIC16_ENTRY_WORD0 + got_offset,
3144 htab->splt->contents + h->plt.offset);
3145 bfd_put_32 (output_bfd, (bfd_vma) PLT_PIC16_ENTRY_WORD1,
3146 htab->splt->contents + h->plt.offset + 4);
3147 bfd_put_32 (output_bfd, (bfd_vma) PLT_PIC16_ENTRY_WORD2,
3148 htab->splt->contents + h->plt.offset + 8);
3149 bfd_put_32 (output_bfd, (bfd_vma) PLT_PIC16_ENTRY_WORD3,
3150 htab->splt->contents + h->plt.offset + 12);
3151 bfd_put_32 (output_bfd, (bfd_vma) PLT_PIC16_ENTRY_WORD4,
3152 htab->splt->contents + h->plt.offset + 16);
3153 bfd_put_32 (output_bfd, (bfd_vma) 0+(relative_offset << 16),
3154 htab->splt->contents + h->plt.offset + 20);
3155 bfd_put_32 (output_bfd, (bfd_vma) 0,
3156 htab->splt->contents + h->plt.offset + 24);
3160 bfd_put_32 (output_bfd, (bfd_vma) PLT_PIC_ENTRY_WORD0,
3161 htab->splt->contents + h->plt.offset);
3162 bfd_put_32 (output_bfd, (bfd_vma) PLT_PIC_ENTRY_WORD1,
3163 htab->splt->contents + h->plt.offset + 4);
3164 bfd_put_32 (output_bfd, (bfd_vma) PLT_PIC_ENTRY_WORD2,
3165 htab->splt->contents + h->plt.offset + 8);
3166 bfd_put_32 (output_bfd, (bfd_vma) PLT_PIC_ENTRY_WORD3,
3167 htab->splt->contents + h->plt.offset + 12);
3168 bfd_put_32 (output_bfd, (bfd_vma) PLT_PIC_ENTRY_WORD4,
3169 htab->splt->contents + h->plt.offset + 16);
3170 bfd_put_32 (output_bfd, (bfd_vma) 0+(relative_offset << 16),
3171 htab->splt->contents + h->plt.offset + 20);
3172 bfd_put_32 (output_bfd, got_offset,
3173 htab->splt->contents + h->plt.offset + 24);
3175 /* Insert offset into reloc. table here. */
3176 bfd_put_32 (output_bfd, plt_index * sizeof (Elf32_External_Rela),
3177 htab->splt->contents + h->plt.offset + 28);
3179 /* Fill in the entry in the global offset table.
3180 Points to instruction after GOT offset. */
3181 bfd_put_32 (output_bfd,
3182 (htab->splt->output_section->vma
3183 + htab->splt->output_offset
3186 htab->sgotplt->contents + got_offset);
3188 /* Fill in the entry in the .rela.plt section. */
3189 rela.r_offset = (htab->sgotplt->output_section->vma
3190 + htab->sgotplt->output_offset
3192 rela.r_info = ELF32_R_INFO (h->dynindx, R_390_JMP_SLOT);
3194 loc = htab->srelplt->contents + plt_index * sizeof (Elf32_External_Rela);
3195 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
3197 if ((h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0)
3199 /* Mark the symbol as undefined, rather than as defined in
3200 the .plt section. Leave the value alone. This is a clue
3201 for the dynamic linker, to make function pointer
3202 comparisons work between an application and shared
3204 sym->st_shndx = SHN_UNDEF;
3208 if (h->got.offset != (bfd_vma) -1
3209 && elf_s390_hash_entry(h)->tls_type != GOT_TLS_GD
3210 && elf_s390_hash_entry(h)->tls_type != GOT_TLS_IE
3211 && elf_s390_hash_entry(h)->tls_type != GOT_TLS_IE_NLT)
3213 Elf_Internal_Rela rela;
3216 /* This symbol has an entry in the global offset table. Set it
3219 if (htab->sgot == NULL || htab->srelgot == NULL)
3222 rela.r_offset = (htab->sgot->output_section->vma
3223 + htab->sgot->output_offset
3224 + (h->got.offset &~ (bfd_vma) 1));
3226 /* If this is a static link, or it is a -Bsymbolic link and the
3227 symbol is defined locally or was forced to be local because
3228 of a version file, we just want to emit a RELATIVE reloc.
3229 The entry in the global offset table will already have been
3230 initialized in the relocate_section function. */
3234 || (h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL))
3235 && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR))
3237 BFD_ASSERT((h->got.offset & 1) != 0);
3238 rela.r_info = ELF32_R_INFO (0, R_390_RELATIVE);
3239 rela.r_addend = (h->root.u.def.value
3240 + h->root.u.def.section->output_section->vma
3241 + h->root.u.def.section->output_offset);
3245 BFD_ASSERT((h->got.offset & 1) == 0);
3246 bfd_put_32 (output_bfd, (bfd_vma) 0, htab->sgot->contents + h->got.offset);
3247 rela.r_info = ELF32_R_INFO (h->dynindx, R_390_GLOB_DAT);
3251 loc = htab->srelgot->contents;
3252 loc += htab->srelgot->reloc_count++ * sizeof (Elf32_External_Rela);
3253 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
3256 if ((h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_COPY) != 0)
3258 Elf_Internal_Rela rela;
3261 /* This symbols needs a copy reloc. Set it up. */
3263 if (h->dynindx == -1
3264 || (h->root.type != bfd_link_hash_defined
3265 && h->root.type != bfd_link_hash_defweak)
3266 || htab->srelbss == NULL)
3269 rela.r_offset = (h->root.u.def.value
3270 + h->root.u.def.section->output_section->vma
3271 + h->root.u.def.section->output_offset);
3272 rela.r_info = ELF32_R_INFO (h->dynindx, R_390_COPY);
3274 loc = htab->srelbss->contents;
3275 loc += htab->srelbss->reloc_count++ * sizeof (Elf32_External_Rela);
3276 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
3279 /* Mark some specially defined symbols as absolute. */
3280 if (strcmp (h->root.root.string, "_DYNAMIC") == 0
3281 || strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0
3282 || strcmp (h->root.root.string, "_PROCEDURE_LINKAGE_TABLE_") == 0)
3283 sym->st_shndx = SHN_ABS;
3288 /* Used to decide how to sort relocs in an optimal manner for the
3289 dynamic linker, before writing them out. */
3291 static enum elf_reloc_type_class
3292 elf_s390_reloc_type_class (rela)
3293 const Elf_Internal_Rela *rela;
3295 switch ((int) ELF32_R_TYPE (rela->r_info))
3297 case R_390_RELATIVE:
3298 return reloc_class_relative;
3299 case R_390_JMP_SLOT:
3300 return reloc_class_plt;
3302 return reloc_class_copy;
3304 return reloc_class_normal;
3308 /* Finish up the dynamic sections. */
3311 elf_s390_finish_dynamic_sections (output_bfd, info)
3313 struct bfd_link_info *info;
3315 struct elf_s390_link_hash_table *htab;
3319 htab = elf_s390_hash_table (info);
3320 dynobj = htab->elf.dynobj;
3321 sdyn = bfd_get_section_by_name (dynobj, ".dynamic");
3323 if (htab->elf.dynamic_sections_created)
3325 Elf32_External_Dyn *dyncon, *dynconend;
3327 if (sdyn == NULL || htab->sgot == NULL)
3330 dyncon = (Elf32_External_Dyn *) sdyn->contents;
3331 dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size);
3332 for (; dyncon < dynconend; dyncon++)
3334 Elf_Internal_Dyn dyn;
3337 bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn);
3345 dyn.d_un.d_ptr = htab->sgot->output_section->vma;
3349 dyn.d_un.d_ptr = htab->srelplt->output_section->vma;
3353 s = htab->srelplt->output_section;
3354 dyn.d_un.d_val = s->size;
3358 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
3361 /* Fill in the special first entry in the procedure linkage table. */
3362 if (htab->splt && htab->splt->size > 0)
3364 memset (htab->splt->contents, 0, PLT_FIRST_ENTRY_SIZE);
3367 bfd_put_32 (output_bfd, (bfd_vma) PLT_PIC_FIRST_ENTRY_WORD0,
3368 htab->splt->contents );
3369 bfd_put_32 (output_bfd, (bfd_vma) PLT_PIC_FIRST_ENTRY_WORD1,
3370 htab->splt->contents +4 );
3371 bfd_put_32 (output_bfd, (bfd_vma) PLT_PIC_FIRST_ENTRY_WORD2,
3372 htab->splt->contents +8 );
3373 bfd_put_32 (output_bfd, (bfd_vma) PLT_PIC_FIRST_ENTRY_WORD3,
3374 htab->splt->contents +12 );
3375 bfd_put_32 (output_bfd, (bfd_vma) PLT_PIC_FIRST_ENTRY_WORD4,
3376 htab->splt->contents +16 );
3380 bfd_put_32 (output_bfd, (bfd_vma)PLT_FIRST_ENTRY_WORD0,
3381 htab->splt->contents );
3382 bfd_put_32 (output_bfd, (bfd_vma) PLT_FIRST_ENTRY_WORD1,
3383 htab->splt->contents +4 );
3384 bfd_put_32 (output_bfd, (bfd_vma) PLT_FIRST_ENTRY_WORD2,
3385 htab->splt->contents +8 );
3386 bfd_put_32 (output_bfd, (bfd_vma) PLT_FIRST_ENTRY_WORD3,
3387 htab->splt->contents +12 );
3388 bfd_put_32 (output_bfd, (bfd_vma) PLT_FIRST_ENTRY_WORD4,
3389 htab->splt->contents +16 );
3390 bfd_put_32 (output_bfd, (bfd_vma) PLT_FIRST_ENTRY_WORD5,
3391 htab->splt->contents +20 );
3392 bfd_put_32 (output_bfd,
3393 htab->sgotplt->output_section->vma
3394 + htab->sgotplt->output_offset,
3395 htab->splt->contents + 24);
3397 elf_section_data (htab->splt->output_section)
3398 ->this_hdr.sh_entsize = 4;
3405 /* Fill in the first three entries in the global offset table. */
3406 if (htab->sgotplt->size > 0)
3408 bfd_put_32 (output_bfd,
3409 (sdyn == NULL ? (bfd_vma) 0
3410 : sdyn->output_section->vma + sdyn->output_offset),
3411 htab->sgotplt->contents);
3412 /* One entry for shared object struct ptr. */
3413 bfd_put_32 (output_bfd, (bfd_vma) 0, htab->sgotplt->contents + 4);
3414 /* One entry for _dl_runtime_resolve. */
3415 bfd_put_32 (output_bfd, (bfd_vma) 0, htab->sgotplt->contents + 8);
3418 elf_section_data (htab->sgotplt->output_section)
3419 ->this_hdr.sh_entsize = 4;
3425 elf_s390_grok_prstatus (abfd, note)
3427 Elf_Internal_Note * note;
3432 switch (note->descsz)
3437 case 224: /* S/390 Linux. */
3439 elf_tdata (abfd)->core_signal = bfd_get_16 (abfd, note->descdata + 12);
3442 elf_tdata (abfd)->core_pid = bfd_get_32 (abfd, note->descdata + 24);
3450 /* Make a ".reg/999" section. */
3451 return _bfd_elfcore_make_pseudosection (abfd, ".reg",
3452 size, note->descpos + offset);
3455 /* Return address for Ith PLT stub in section PLT, for relocation REL
3456 or (bfd_vma) -1 if it should not be included. */
3459 elf_s390_plt_sym_val (bfd_vma i, const asection *plt,
3460 const arelent *rel ATTRIBUTE_UNUSED)
3462 return plt->vma + PLT_FIRST_ENTRY_SIZE + i * PLT_ENTRY_SIZE;
3466 #define TARGET_BIG_SYM bfd_elf32_s390_vec
3467 #define TARGET_BIG_NAME "elf32-s390"
3468 #define ELF_ARCH bfd_arch_s390
3469 #define ELF_MACHINE_CODE EM_S390
3470 #define ELF_MACHINE_ALT1 EM_S390_OLD
3471 #define ELF_MAXPAGESIZE 0x1000
3473 #define elf_backend_can_gc_sections 1
3474 #define elf_backend_can_refcount 1
3475 #define elf_backend_want_got_plt 1
3476 #define elf_backend_plt_readonly 1
3477 #define elf_backend_want_plt_sym 0
3478 #define elf_backend_got_header_size 12
3479 #define elf_backend_rela_normal 1
3481 #define elf_info_to_howto elf_s390_info_to_howto
3483 #define bfd_elf32_bfd_is_local_label_name elf_s390_is_local_label_name
3484 #define bfd_elf32_bfd_link_hash_table_create elf_s390_link_hash_table_create
3485 #define bfd_elf32_bfd_reloc_type_lookup elf_s390_reloc_type_lookup
3487 #define elf_backend_adjust_dynamic_symbol elf_s390_adjust_dynamic_symbol
3488 #define elf_backend_check_relocs elf_s390_check_relocs
3489 #define elf_backend_copy_indirect_symbol elf_s390_copy_indirect_symbol
3490 #define elf_backend_create_dynamic_sections elf_s390_create_dynamic_sections
3491 #define elf_backend_finish_dynamic_sections elf_s390_finish_dynamic_sections
3492 #define elf_backend_finish_dynamic_symbol elf_s390_finish_dynamic_symbol
3493 #define elf_backend_gc_mark_hook elf_s390_gc_mark_hook
3494 #define elf_backend_gc_sweep_hook elf_s390_gc_sweep_hook
3495 #define elf_backend_reloc_type_class elf_s390_reloc_type_class
3496 #define elf_backend_relocate_section elf_s390_relocate_section
3497 #define elf_backend_size_dynamic_sections elf_s390_size_dynamic_sections
3498 #define elf_backend_reloc_type_class elf_s390_reloc_type_class
3499 #define elf_backend_grok_prstatus elf_s390_grok_prstatus
3500 #define elf_backend_plt_sym_val elf_s390_plt_sym_val
3502 #define bfd_elf32_mkobject elf_s390_mkobject
3503 #define elf_backend_object_p elf_s390_object_p
3505 #include "elf32-target.h"