1 /* IBM S/390-specific support for 64-bit ELF
2 Copyright 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009,
3 2010, 2011, 2012 Free Software Foundation, Inc.
4 Contributed Martin Schwidefsky (schwidefsky@de.ibm.com).
6 This file is part of BFD, the Binary File Descriptor library.
8 This program is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 3 of the License, or
11 (at your option) any later version.
13 This program is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with this program; if not, write to the Free Software
20 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA
30 /* In case we're on a 32-bit machine, construct a 64-bit "-1" value
31 from smaller values. Start with zero, widen, *then* decrement. */
32 #define MINUS_ONE (((bfd_vma)0) - 1)
34 static bfd_reloc_status_type
35 s390_tls_reloc (bfd *, arelent *, asymbol *, void *,
36 asection *, bfd *, char **);
37 static bfd_reloc_status_type
38 s390_elf_ldisp_reloc (bfd *, arelent *, asymbol *, void *,
39 asection *, bfd *, char **);
41 /* The relocation "howto" table. */
42 static reloc_howto_type elf_howto_table[] =
44 HOWTO (R_390_NONE, /* type */
46 0, /* size (0 = byte, 1 = short, 2 = long) */
48 FALSE, /* pc_relative */
50 complain_overflow_dont, /* complain_on_overflow */
51 bfd_elf_generic_reloc, /* special_function */
52 "R_390_NONE", /* name */
53 FALSE, /* partial_inplace */
56 FALSE), /* pcrel_offset */
58 HOWTO(R_390_8, 0, 0, 8, FALSE, 0, complain_overflow_bitfield,
59 bfd_elf_generic_reloc, "R_390_8", FALSE, 0,0x000000ff, FALSE),
60 HOWTO(R_390_12, 0, 1, 12, FALSE, 0, complain_overflow_dont,
61 bfd_elf_generic_reloc, "R_390_12", FALSE, 0,0x00000fff, FALSE),
62 HOWTO(R_390_16, 0, 1, 16, FALSE, 0, complain_overflow_bitfield,
63 bfd_elf_generic_reloc, "R_390_16", FALSE, 0,0x0000ffff, FALSE),
64 HOWTO(R_390_32, 0, 2, 32, FALSE, 0, complain_overflow_bitfield,
65 bfd_elf_generic_reloc, "R_390_32", FALSE, 0,0xffffffff, FALSE),
66 HOWTO(R_390_PC32, 0, 2, 32, TRUE, 0, complain_overflow_bitfield,
67 bfd_elf_generic_reloc, "R_390_PC32", FALSE, 0,0xffffffff, TRUE),
68 HOWTO(R_390_GOT12, 0, 1, 12, FALSE, 0, complain_overflow_bitfield,
69 bfd_elf_generic_reloc, "R_390_GOT12", FALSE, 0,0x00000fff, FALSE),
70 HOWTO(R_390_GOT32, 0, 2, 32, FALSE, 0, complain_overflow_bitfield,
71 bfd_elf_generic_reloc, "R_390_GOT32", FALSE, 0,0xffffffff, FALSE),
72 HOWTO(R_390_PLT32, 0, 2, 32, TRUE, 0, complain_overflow_bitfield,
73 bfd_elf_generic_reloc, "R_390_PLT32", FALSE, 0,0xffffffff, TRUE),
74 HOWTO(R_390_COPY, 0, 4, 64, FALSE, 0, complain_overflow_bitfield,
75 bfd_elf_generic_reloc, "R_390_COPY", FALSE, 0,MINUS_ONE, FALSE),
76 HOWTO(R_390_GLOB_DAT, 0, 4, 64, FALSE, 0, complain_overflow_bitfield,
77 bfd_elf_generic_reloc, "R_390_GLOB_DAT", FALSE, 0,MINUS_ONE, FALSE),
78 HOWTO(R_390_JMP_SLOT, 0, 4, 64, FALSE, 0, complain_overflow_bitfield,
79 bfd_elf_generic_reloc, "R_390_JMP_SLOT", FALSE, 0,MINUS_ONE, FALSE),
80 HOWTO(R_390_RELATIVE, 0, 4, 64, TRUE, 0, complain_overflow_bitfield,
81 bfd_elf_generic_reloc, "R_390_RELATIVE", FALSE, 0,MINUS_ONE, FALSE),
82 HOWTO(R_390_GOTOFF32, 0, 2, 32, FALSE, 0, complain_overflow_bitfield,
83 bfd_elf_generic_reloc, "R_390_GOTOFF32", FALSE, 0,MINUS_ONE, FALSE),
84 HOWTO(R_390_GOTPC, 0, 4, 64, TRUE, 0, complain_overflow_bitfield,
85 bfd_elf_generic_reloc, "R_390_GOTPC", FALSE, 0,MINUS_ONE, TRUE),
86 HOWTO(R_390_GOT16, 0, 1, 16, FALSE, 0, complain_overflow_bitfield,
87 bfd_elf_generic_reloc, "R_390_GOT16", FALSE, 0,0x0000ffff, FALSE),
88 HOWTO(R_390_PC16, 0, 1, 16, TRUE, 0, complain_overflow_bitfield,
89 bfd_elf_generic_reloc, "R_390_PC16", FALSE, 0,0x0000ffff, TRUE),
90 HOWTO(R_390_PC16DBL, 1, 1, 16, TRUE, 0, complain_overflow_bitfield,
91 bfd_elf_generic_reloc, "R_390_PC16DBL", FALSE, 0,0x0000ffff, TRUE),
92 HOWTO(R_390_PLT16DBL, 1, 1, 16, TRUE, 0, complain_overflow_bitfield,
93 bfd_elf_generic_reloc, "R_390_PLT16DBL", FALSE, 0,0x0000ffff, TRUE),
94 HOWTO(R_390_PC32DBL, 1, 2, 32, TRUE, 0, complain_overflow_bitfield,
95 bfd_elf_generic_reloc, "R_390_PC32DBL", FALSE, 0,0xffffffff, TRUE),
96 HOWTO(R_390_PLT32DBL, 1, 2, 32, TRUE, 0, complain_overflow_bitfield,
97 bfd_elf_generic_reloc, "R_390_PLT32DBL", FALSE, 0,0xffffffff, TRUE),
98 HOWTO(R_390_GOTPCDBL, 1, 2, 32, TRUE, 0, complain_overflow_bitfield,
99 bfd_elf_generic_reloc, "R_390_GOTPCDBL", FALSE, 0,MINUS_ONE, TRUE),
100 HOWTO(R_390_64, 0, 4, 64, FALSE, 0, complain_overflow_bitfield,
101 bfd_elf_generic_reloc, "R_390_64", FALSE, 0,MINUS_ONE, FALSE),
102 HOWTO(R_390_PC64, 0, 4, 64, TRUE, 0, complain_overflow_bitfield,
103 bfd_elf_generic_reloc, "R_390_PC64", FALSE, 0,MINUS_ONE, TRUE),
104 HOWTO(R_390_GOT64, 0, 4, 64, FALSE, 0, complain_overflow_bitfield,
105 bfd_elf_generic_reloc, "R_390_GOT64", FALSE, 0,MINUS_ONE, FALSE),
106 HOWTO(R_390_PLT64, 0, 4, 64, TRUE, 0, complain_overflow_bitfield,
107 bfd_elf_generic_reloc, "R_390_PLT64", FALSE, 0,MINUS_ONE, TRUE),
108 HOWTO(R_390_GOTENT, 1, 2, 32, TRUE, 0, complain_overflow_bitfield,
109 bfd_elf_generic_reloc, "R_390_GOTENT", FALSE, 0,MINUS_ONE, TRUE),
110 HOWTO(R_390_GOTOFF16, 0, 1, 16, FALSE, 0, complain_overflow_bitfield,
111 bfd_elf_generic_reloc, "R_390_GOTOFF16", FALSE, 0,0x0000ffff, FALSE),
112 HOWTO(R_390_GOTOFF64, 0, 4, 64, FALSE, 0, complain_overflow_bitfield,
113 bfd_elf_generic_reloc, "R_390_GOTOFF64", FALSE, 0,MINUS_ONE, FALSE),
114 HOWTO(R_390_GOTPLT12, 0, 1, 12, FALSE, 0, complain_overflow_dont,
115 bfd_elf_generic_reloc, "R_390_GOTPLT12", FALSE, 0,0x00000fff, FALSE),
116 HOWTO(R_390_GOTPLT16, 0, 1, 16, FALSE, 0, complain_overflow_bitfield,
117 bfd_elf_generic_reloc, "R_390_GOTPLT16", FALSE, 0,0x0000ffff, FALSE),
118 HOWTO(R_390_GOTPLT32, 0, 2, 32, FALSE, 0, complain_overflow_bitfield,
119 bfd_elf_generic_reloc, "R_390_GOTPLT32", FALSE, 0,0xffffffff, FALSE),
120 HOWTO(R_390_GOTPLT64, 0, 4, 64, FALSE, 0, complain_overflow_bitfield,
121 bfd_elf_generic_reloc, "R_390_GOTPLT64", FALSE, 0,MINUS_ONE, FALSE),
122 HOWTO(R_390_GOTPLTENT, 1, 2, 32, TRUE, 0, complain_overflow_bitfield,
123 bfd_elf_generic_reloc, "R_390_GOTPLTENT",FALSE, 0,MINUS_ONE, TRUE),
124 HOWTO(R_390_PLTOFF16, 0, 1, 16, FALSE, 0, complain_overflow_bitfield,
125 bfd_elf_generic_reloc, "R_390_PLTOFF16", FALSE, 0,0x0000ffff, FALSE),
126 HOWTO(R_390_PLTOFF32, 0, 2, 32, FALSE, 0, complain_overflow_bitfield,
127 bfd_elf_generic_reloc, "R_390_PLTOFF32", FALSE, 0,0xffffffff, FALSE),
128 HOWTO(R_390_PLTOFF64, 0, 4, 64, FALSE, 0, complain_overflow_bitfield,
129 bfd_elf_generic_reloc, "R_390_PLTOFF64", FALSE, 0,MINUS_ONE, FALSE),
130 HOWTO(R_390_TLS_LOAD, 0, 0, 0, FALSE, 0, complain_overflow_dont,
131 s390_tls_reloc, "R_390_TLS_LOAD", FALSE, 0, 0, FALSE),
132 HOWTO(R_390_TLS_GDCALL, 0, 0, 0, FALSE, 0, complain_overflow_dont,
133 s390_tls_reloc, "R_390_TLS_GDCALL", FALSE, 0, 0, FALSE),
134 HOWTO(R_390_TLS_LDCALL, 0, 0, 0, FALSE, 0, complain_overflow_dont,
135 s390_tls_reloc, "R_390_TLS_LDCALL", FALSE, 0, 0, FALSE),
136 EMPTY_HOWTO (R_390_TLS_GD32), /* Empty entry for R_390_TLS_GD32. */
137 HOWTO(R_390_TLS_GD64, 0, 4, 64, FALSE, 0, complain_overflow_bitfield,
138 bfd_elf_generic_reloc, "R_390_TLS_GD64", FALSE, 0, MINUS_ONE, FALSE),
139 HOWTO(R_390_TLS_GOTIE12, 0, 1, 12, FALSE, 0, complain_overflow_dont,
140 bfd_elf_generic_reloc, "R_390_TLS_GOTIE12", FALSE, 0, 0x00000fff, FALSE),
141 EMPTY_HOWTO (R_390_TLS_GOTIE32), /* Empty entry for R_390_TLS_GOTIE32. */
142 HOWTO(R_390_TLS_GOTIE64, 0, 4, 64, FALSE, 0, complain_overflow_bitfield,
143 bfd_elf_generic_reloc, "R_390_TLS_GOTIE64", FALSE, 0, MINUS_ONE, FALSE),
144 EMPTY_HOWTO (R_390_TLS_LDM32), /* Empty entry for R_390_TLS_LDM32. */
145 HOWTO(R_390_TLS_LDM64, 0, 4, 64, FALSE, 0, complain_overflow_bitfield,
146 bfd_elf_generic_reloc, "R_390_TLS_LDM64", FALSE, 0, MINUS_ONE, FALSE),
147 EMPTY_HOWTO (R_390_TLS_IE32), /* Empty entry for R_390_TLS_IE32. */
148 HOWTO(R_390_TLS_IE64, 0, 4, 64, FALSE, 0, complain_overflow_bitfield,
149 bfd_elf_generic_reloc, "R_390_TLS_IE64", FALSE, 0, MINUS_ONE, FALSE),
150 HOWTO(R_390_TLS_IEENT, 1, 2, 32, TRUE, 0, complain_overflow_bitfield,
151 bfd_elf_generic_reloc, "R_390_TLS_IEENT", FALSE, 0, MINUS_ONE, TRUE),
152 EMPTY_HOWTO (R_390_TLS_LE32), /* Empty entry for R_390_TLS_LE32. */
153 HOWTO(R_390_TLS_LE64, 0, 2, 32, FALSE, 0, complain_overflow_bitfield,
154 bfd_elf_generic_reloc, "R_390_TLS_LE64", FALSE, 0, MINUS_ONE, FALSE),
155 EMPTY_HOWTO (R_390_TLS_LDO32), /* Empty entry for R_390_TLS_LDO32. */
156 HOWTO(R_390_TLS_LDO64, 0, 4, 64, FALSE, 0, complain_overflow_bitfield,
157 bfd_elf_generic_reloc, "R_390_TLS_LDO64", FALSE, 0, MINUS_ONE, FALSE),
158 HOWTO(R_390_TLS_DTPMOD, 0, 4, 64, FALSE, 0, complain_overflow_bitfield,
159 bfd_elf_generic_reloc, "R_390_TLS_DTPMOD", FALSE, 0, MINUS_ONE, FALSE),
160 HOWTO(R_390_TLS_DTPOFF, 0, 4, 64, FALSE, 0, complain_overflow_bitfield,
161 bfd_elf_generic_reloc, "R_390_TLS_DTPOFF", FALSE, 0, MINUS_ONE, FALSE),
162 HOWTO(R_390_TLS_TPOFF, 0, 4, 64, FALSE, 0, complain_overflow_bitfield,
163 bfd_elf_generic_reloc, "R_390_TLS_TPOFF", FALSE, 0, MINUS_ONE, FALSE),
164 HOWTO(R_390_20, 0, 2, 20, FALSE, 8, complain_overflow_dont,
165 s390_elf_ldisp_reloc, "R_390_20", FALSE, 0,0x0fffff00, FALSE),
166 HOWTO(R_390_GOT20, 0, 2, 20, FALSE, 8, complain_overflow_dont,
167 s390_elf_ldisp_reloc, "R_390_GOT20", FALSE, 0,0x0fffff00, FALSE),
168 HOWTO(R_390_GOTPLT20, 0, 2, 20, FALSE, 8, complain_overflow_dont,
169 s390_elf_ldisp_reloc, "R_390_GOTPLT20", FALSE, 0,0x0fffff00, FALSE),
170 HOWTO(R_390_TLS_GOTIE20, 0, 2, 20, FALSE, 8, complain_overflow_dont,
171 s390_elf_ldisp_reloc, "R_390_TLS_GOTIE20", FALSE, 0,0x0fffff00, FALSE),
172 HOWTO(R_390_IRELATIVE, 0, 4, 64, FALSE, 0, complain_overflow_bitfield,
173 bfd_elf_generic_reloc, "R_390_IRELATIVE", FALSE, 0, MINUS_ONE, FALSE),
177 /* GNU extension to record C++ vtable hierarchy. */
178 static reloc_howto_type elf64_s390_vtinherit_howto =
179 HOWTO (R_390_GNU_VTINHERIT, 0,4,0,FALSE,0,complain_overflow_dont, NULL, "R_390_GNU_VTINHERIT", FALSE,0, 0, FALSE);
180 static reloc_howto_type elf64_s390_vtentry_howto =
181 HOWTO (R_390_GNU_VTENTRY, 0,4,0,FALSE,0,complain_overflow_dont, _bfd_elf_rel_vtable_reloc_fn,"R_390_GNU_VTENTRY", FALSE,0,0, FALSE);
183 static reloc_howto_type *
184 elf_s390_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED,
185 bfd_reloc_code_real_type code)
190 return &elf_howto_table[(int) R_390_NONE];
192 return &elf_howto_table[(int) R_390_8];
193 case BFD_RELOC_390_12:
194 return &elf_howto_table[(int) R_390_12];
196 return &elf_howto_table[(int) R_390_16];
198 return &elf_howto_table[(int) R_390_32];
200 return &elf_howto_table[(int) R_390_32];
201 case BFD_RELOC_32_PCREL:
202 return &elf_howto_table[(int) R_390_PC32];
203 case BFD_RELOC_390_GOT12:
204 return &elf_howto_table[(int) R_390_GOT12];
205 case BFD_RELOC_32_GOT_PCREL:
206 return &elf_howto_table[(int) R_390_GOT32];
207 case BFD_RELOC_390_PLT32:
208 return &elf_howto_table[(int) R_390_PLT32];
209 case BFD_RELOC_390_COPY:
210 return &elf_howto_table[(int) R_390_COPY];
211 case BFD_RELOC_390_GLOB_DAT:
212 return &elf_howto_table[(int) R_390_GLOB_DAT];
213 case BFD_RELOC_390_JMP_SLOT:
214 return &elf_howto_table[(int) R_390_JMP_SLOT];
215 case BFD_RELOC_390_RELATIVE:
216 return &elf_howto_table[(int) R_390_RELATIVE];
217 case BFD_RELOC_32_GOTOFF:
218 return &elf_howto_table[(int) R_390_GOTOFF32];
219 case BFD_RELOC_390_GOTPC:
220 return &elf_howto_table[(int) R_390_GOTPC];
221 case BFD_RELOC_390_GOT16:
222 return &elf_howto_table[(int) R_390_GOT16];
223 case BFD_RELOC_16_PCREL:
224 return &elf_howto_table[(int) R_390_PC16];
225 case BFD_RELOC_390_PC16DBL:
226 return &elf_howto_table[(int) R_390_PC16DBL];
227 case BFD_RELOC_390_PLT16DBL:
228 return &elf_howto_table[(int) R_390_PLT16DBL];
229 case BFD_RELOC_390_PC32DBL:
230 return &elf_howto_table[(int) R_390_PC32DBL];
231 case BFD_RELOC_390_PLT32DBL:
232 return &elf_howto_table[(int) R_390_PLT32DBL];
233 case BFD_RELOC_390_GOTPCDBL:
234 return &elf_howto_table[(int) R_390_GOTPCDBL];
236 return &elf_howto_table[(int) R_390_64];
237 case BFD_RELOC_64_PCREL:
238 return &elf_howto_table[(int) R_390_PC64];
239 case BFD_RELOC_390_GOT64:
240 return &elf_howto_table[(int) R_390_GOT64];
241 case BFD_RELOC_390_PLT64:
242 return &elf_howto_table[(int) R_390_PLT64];
243 case BFD_RELOC_390_GOTENT:
244 return &elf_howto_table[(int) R_390_GOTENT];
245 case BFD_RELOC_16_GOTOFF:
246 return &elf_howto_table[(int) R_390_GOTOFF16];
247 case BFD_RELOC_390_GOTOFF64:
248 return &elf_howto_table[(int) R_390_GOTOFF64];
249 case BFD_RELOC_390_GOTPLT12:
250 return &elf_howto_table[(int) R_390_GOTPLT12];
251 case BFD_RELOC_390_GOTPLT16:
252 return &elf_howto_table[(int) R_390_GOTPLT16];
253 case BFD_RELOC_390_GOTPLT32:
254 return &elf_howto_table[(int) R_390_GOTPLT32];
255 case BFD_RELOC_390_GOTPLT64:
256 return &elf_howto_table[(int) R_390_GOTPLT64];
257 case BFD_RELOC_390_GOTPLTENT:
258 return &elf_howto_table[(int) R_390_GOTPLTENT];
259 case BFD_RELOC_390_PLTOFF16:
260 return &elf_howto_table[(int) R_390_PLTOFF16];
261 case BFD_RELOC_390_PLTOFF32:
262 return &elf_howto_table[(int) R_390_PLTOFF32];
263 case BFD_RELOC_390_PLTOFF64:
264 return &elf_howto_table[(int) R_390_PLTOFF64];
265 case BFD_RELOC_390_TLS_LOAD:
266 return &elf_howto_table[(int) R_390_TLS_LOAD];
267 case BFD_RELOC_390_TLS_GDCALL:
268 return &elf_howto_table[(int) R_390_TLS_GDCALL];
269 case BFD_RELOC_390_TLS_LDCALL:
270 return &elf_howto_table[(int) R_390_TLS_LDCALL];
271 case BFD_RELOC_390_TLS_GD64:
272 return &elf_howto_table[(int) R_390_TLS_GD64];
273 case BFD_RELOC_390_TLS_GOTIE12:
274 return &elf_howto_table[(int) R_390_TLS_GOTIE12];
275 case BFD_RELOC_390_TLS_GOTIE64:
276 return &elf_howto_table[(int) R_390_TLS_GOTIE64];
277 case BFD_RELOC_390_TLS_LDM64:
278 return &elf_howto_table[(int) R_390_TLS_LDM64];
279 case BFD_RELOC_390_TLS_IE64:
280 return &elf_howto_table[(int) R_390_TLS_IE64];
281 case BFD_RELOC_390_TLS_IEENT:
282 return &elf_howto_table[(int) R_390_TLS_IEENT];
283 case BFD_RELOC_390_TLS_LE64:
284 return &elf_howto_table[(int) R_390_TLS_LE64];
285 case BFD_RELOC_390_TLS_LDO64:
286 return &elf_howto_table[(int) R_390_TLS_LDO64];
287 case BFD_RELOC_390_TLS_DTPMOD:
288 return &elf_howto_table[(int) R_390_TLS_DTPMOD];
289 case BFD_RELOC_390_TLS_DTPOFF:
290 return &elf_howto_table[(int) R_390_TLS_DTPOFF];
291 case BFD_RELOC_390_TLS_TPOFF:
292 return &elf_howto_table[(int) R_390_TLS_TPOFF];
293 case BFD_RELOC_390_20:
294 return &elf_howto_table[(int) R_390_20];
295 case BFD_RELOC_390_GOT20:
296 return &elf_howto_table[(int) R_390_GOT20];
297 case BFD_RELOC_390_GOTPLT20:
298 return &elf_howto_table[(int) R_390_GOTPLT20];
299 case BFD_RELOC_390_TLS_GOTIE20:
300 return &elf_howto_table[(int) R_390_TLS_GOTIE20];
301 case BFD_RELOC_390_IRELATIVE:
302 return &elf_howto_table[(int) R_390_IRELATIVE];
303 case BFD_RELOC_VTABLE_INHERIT:
304 return &elf64_s390_vtinherit_howto;
305 case BFD_RELOC_VTABLE_ENTRY:
306 return &elf64_s390_vtentry_howto;
313 static reloc_howto_type *
314 elf_s390_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
320 i < sizeof (elf_howto_table) / sizeof (elf_howto_table[0]);
322 if (elf_howto_table[i].name != NULL
323 && strcasecmp (elf_howto_table[i].name, r_name) == 0)
324 return &elf_howto_table[i];
326 if (strcasecmp (elf64_s390_vtinherit_howto.name, r_name) == 0)
327 return &elf64_s390_vtinherit_howto;
328 if (strcasecmp (elf64_s390_vtentry_howto.name, r_name) == 0)
329 return &elf64_s390_vtentry_howto;
334 /* We need to use ELF64_R_TYPE so we have our own copy of this function,
335 and elf64-s390.c has its own copy. */
338 elf_s390_info_to_howto (bfd *abfd ATTRIBUTE_UNUSED,
340 Elf_Internal_Rela *dst)
342 unsigned int r_type = ELF64_R_TYPE(dst->r_info);
345 case R_390_GNU_VTINHERIT:
346 cache_ptr->howto = &elf64_s390_vtinherit_howto;
349 case R_390_GNU_VTENTRY:
350 cache_ptr->howto = &elf64_s390_vtentry_howto;
354 if (r_type >= sizeof (elf_howto_table) / sizeof (elf_howto_table[0]))
356 (*_bfd_error_handler) (_("%B: invalid relocation type %d"),
360 cache_ptr->howto = &elf_howto_table[r_type];
364 /* A relocation function which doesn't do anything. */
365 static bfd_reloc_status_type
366 s390_tls_reloc (bfd *abfd ATTRIBUTE_UNUSED,
367 arelent *reloc_entry,
368 asymbol *symbol ATTRIBUTE_UNUSED,
369 void * data ATTRIBUTE_UNUSED,
370 asection *input_section,
372 char **error_message ATTRIBUTE_UNUSED)
375 reloc_entry->address += input_section->output_offset;
379 /* Handle the large displacement relocs. */
380 static bfd_reloc_status_type
381 s390_elf_ldisp_reloc (bfd *abfd,
382 arelent *reloc_entry,
385 asection *input_section,
387 char **error_message ATTRIBUTE_UNUSED)
389 reloc_howto_type *howto = reloc_entry->howto;
393 if (output_bfd != (bfd *) NULL
394 && (symbol->flags & BSF_SECTION_SYM) == 0
395 && (! howto->partial_inplace
396 || reloc_entry->addend == 0))
398 reloc_entry->address += input_section->output_offset;
401 if (output_bfd != NULL)
402 return bfd_reloc_continue;
404 if (reloc_entry->address > bfd_get_section_limit (abfd, input_section))
405 return bfd_reloc_outofrange;
407 relocation = (symbol->value
408 + symbol->section->output_section->vma
409 + symbol->section->output_offset);
410 relocation += reloc_entry->addend;
411 if (howto->pc_relative)
413 relocation -= (input_section->output_section->vma
414 + input_section->output_offset);
415 relocation -= reloc_entry->address;
418 insn = bfd_get_32 (abfd, (bfd_byte *) data + reloc_entry->address);
419 insn |= (relocation & 0xfff) << 16 | (relocation & 0xff000) >> 4;
420 bfd_put_32 (abfd, insn, (bfd_byte *) data + reloc_entry->address);
422 if ((bfd_signed_vma) relocation < - 0x80000
423 || (bfd_signed_vma) relocation > 0x7ffff)
424 return bfd_reloc_overflow;
430 elf_s390_is_local_label_name (bfd *abfd, const char *name)
432 if (name[0] == '.' && (name[1] == 'X' || name[1] == 'L'))
435 return _bfd_elf_is_local_label_name (abfd, name);
438 /* Functions for the 390 ELF linker. */
440 /* The name of the dynamic interpreter. This is put in the .interp
443 #define ELF_DYNAMIC_INTERPRETER "/lib/ld64.so.1"
445 /* If ELIMINATE_COPY_RELOCS is non-zero, the linker will try to avoid
446 copying dynamic variables from a shared lib into an app's dynbss
447 section, and instead use a dynamic relocation to point into the
449 #define ELIMINATE_COPY_RELOCS 1
451 /* The size in bytes of the first entry in the procedure linkage table. */
452 #define PLT_FIRST_ENTRY_SIZE 32
453 /* The size in bytes of an entry in the procedure linkage table. */
454 #define PLT_ENTRY_SIZE 32
456 #define GOT_ENTRY_SIZE 8
458 #define RELA_ENTRY_SIZE sizeof (Elf64_External_Rela)
460 /* The first three entries in a procedure linkage table are reserved,
461 and the initial contents are unimportant (we zero them out).
462 Subsequent entries look like this. See the SVR4 ABI 386
463 supplement to see how this works. */
465 /* For the s390, simple addr offset can only be 0 - 4096.
466 To use the full 16777216 TB address space, several instructions
467 are needed to load an address in a register and execute
468 a branch( or just saving the address)
470 Furthermore, only r 0 and 1 are free to use!!! */
472 /* The first 3 words in the GOT are then reserved.
473 Word 0 is the address of the dynamic table.
474 Word 1 is a pointer to a structure describing the object
475 Word 2 is used to point to the loader entry address.
477 The code for PLT entries looks like this:
479 The GOT holds the address in the PLT to be executed.
480 The loader then gets:
481 24(15) = Pointer to the structure describing the object.
482 28(15) = Offset in symbol table
483 The loader must then find the module where the function is
484 and insert the address in the GOT.
486 PLT1: LARL 1,<fn>@GOTENT # 6 bytes Load address of GOT entry in r1
487 LG 1,0(1) # 6 bytes Load address from GOT in r1
488 BCR 15,1 # 2 bytes Jump to address
489 RET1: BASR 1,0 # 2 bytes Return from GOT 1st time
490 LGF 1,12(1) # 6 bytes Load offset in symbl table in r1
491 BRCL 15,-x # 6 bytes Jump to start of PLT
492 .long ? # 4 bytes offset into .rela.plt
494 Total = 32 bytes per PLT entry
495 Fixup at offset 2: relative address to GOT entry
496 Fixup at offset 22: relative branch to PLT0
497 Fixup at offset 28: 32 bit offset into .rela.plt
499 A 32 bit offset into the symbol table is enough. It allows for
500 .rela.plt sections up to a size of 2 gigabyte. A single dynamic
501 object (the main program, any shared library) is limited to 4GB in
502 size. Having a .rela.plt of 2GB would already make the .plt
503 section bigger than 8GB. */
505 static const bfd_byte elf_s390x_plt_entry[PLT_ENTRY_SIZE] =
507 0xc0, 0x10, 0x00, 0x00, 0x00, 0x00, /* larl %r1,. */
508 0xe3, 0x10, 0x10, 0x00, 0x00, 0x04, /* lg %r1,0(%r1) */
509 0x07, 0xf1, /* br %r1 */
510 0x0d, 0x10, /* basr %r1,%r0 */
511 0xe3, 0x10, 0x10, 0x0c, 0x00, 0x14, /* lgf %r1,12(%r1) */
512 0xc0, 0xf4, 0x00, 0x00, 0x00, 0x00, /* jg first plt */
513 0x00, 0x00, 0x00, 0x00 /* .long 0x00000000 */
516 /* The first PLT entry pushes the offset into the symbol table
517 from R1 onto the stack at 56(15) and the loader object info
518 at 48(15), loads the loader address in R1 and jumps to it. */
520 /* The first entry in the PLT:
523 STG 1,56(15) # r1 contains the offset into the symbol table
524 LARL 1,_GLOBAL_OFFSET_TABLE # load address of global offset table
525 MVC 48(8,15),8(1) # move loader ino (object struct address) to stack
526 LG 1,16(1) # get entry address of loader
527 BCR 15,1 # jump to loader
529 Fixup at offset 8: relative address to start of GOT. */
531 static const bfd_byte elf_s390x_first_plt_entry[PLT_FIRST_ENTRY_SIZE] =
533 0xe3, 0x10, 0xf0, 0x38, 0x00, 0x24, /* stg %r1,56(%r15) */
534 0xc0, 0x10, 0x00, 0x00, 0x00, 0x00, /* larl %r1,. */
535 0xd2, 0x07, 0xf0, 0x30, 0x10, 0x08, /* mvc 48(8,%r15),8(%r1) */
536 0xe3, 0x10, 0x10, 0x10, 0x00, 0x04, /* lg %r1,16(%r1) */
537 0x07, 0xf1, /* br %r1 */
538 0x07, 0x00, /* nopr %r0 */
539 0x07, 0x00, /* nopr %r0 */
540 0x07, 0x00 /* nopr %r0 */
544 /* s390 ELF linker hash entry. */
546 struct elf_s390_link_hash_entry
548 struct elf_link_hash_entry elf;
550 /* Track dynamic relocs copied for this symbol. */
551 struct elf_dyn_relocs *dyn_relocs;
553 /* Number of GOTPLT references for a function. */
554 bfd_signed_vma gotplt_refcount;
556 #define GOT_UNKNOWN 0
560 #define GOT_TLS_IE_NLT 3
561 unsigned char tls_type;
563 /* For pointer equality reasons we might need to change the symbol
564 type from STT_GNU_IFUNC to STT_FUNC together with its value and
565 section entry. So after alloc_dynrelocs only these values should
566 be used. In order to check whether a symbol is IFUNC use
567 s390_is_ifunc_symbol_p. */
568 bfd_vma ifunc_resolver_address;
569 asection *ifunc_resolver_section;
572 #define elf_s390_hash_entry(ent) \
573 ((struct elf_s390_link_hash_entry *)(ent))
575 /* This structure represents an entry in the local PLT list needed for
576 local IFUNC symbols. */
579 /* The section of the local symbol.
580 Set in relocate_section and used in finish_dynamic_sections. */
585 bfd_signed_vma refcount;
590 /* NOTE: Keep this structure in sync with
591 the one declared in elf32-s390.c. */
592 struct elf_s390_obj_tdata
594 struct elf_obj_tdata root;
596 /* A local PLT is needed for ifunc symbols. */
597 struct plt_entry *local_plt;
599 /* TLS type for each local got entry. */
600 char *local_got_tls_type;
603 #define elf_s390_tdata(abfd) \
604 ((struct elf_s390_obj_tdata *) (abfd)->tdata.any)
606 #define elf_s390_local_plt(abfd) \
607 (elf_s390_tdata (abfd)->local_plt)
609 #define elf_s390_local_got_tls_type(abfd) \
610 (elf_s390_tdata (abfd)->local_got_tls_type)
612 #define is_s390_elf(bfd) \
613 (bfd_get_flavour (bfd) == bfd_target_elf_flavour \
614 && elf_tdata (bfd) != NULL \
615 && elf_object_id (bfd) == S390_ELF_DATA)
618 elf_s390_mkobject (bfd *abfd)
620 return bfd_elf_allocate_object (abfd, sizeof (struct elf_s390_obj_tdata),
625 elf_s390_object_p (bfd *abfd)
627 /* Set the right machine number for an s390 elf32 file. */
628 return bfd_default_set_arch_mach (abfd, bfd_arch_s390, bfd_mach_s390_64);
631 /* s390 ELF linker hash table. */
633 struct elf_s390_link_hash_table
635 struct elf_link_hash_table elf;
637 /* Short-cuts to get to dynamic linker sections. */
643 bfd_signed_vma refcount;
647 /* Small local sym cache. */
648 struct sym_cache sym_cache;
651 /* Get the s390 ELF linker hash table from a link_info structure. */
653 #define elf_s390_hash_table(p) \
654 (elf_hash_table_id ((struct elf_link_hash_table *) ((p)->hash)) \
655 == S390_ELF_DATA ? ((struct elf_s390_link_hash_table *) ((p)->hash)) : NULL)
658 #include "elf-s390-common.c"
660 /* Create an entry in an s390 ELF linker hash table. */
662 static struct bfd_hash_entry *
663 link_hash_newfunc (struct bfd_hash_entry *entry,
664 struct bfd_hash_table *table,
667 /* Allocate the structure if it has not already been allocated by a
671 entry = bfd_hash_allocate (table,
672 sizeof (struct elf_s390_link_hash_entry));
677 /* Call the allocation method of the superclass. */
678 entry = _bfd_elf_link_hash_newfunc (entry, table, string);
681 struct elf_s390_link_hash_entry *eh;
683 eh = (struct elf_s390_link_hash_entry *) entry;
684 eh->dyn_relocs = NULL;
685 eh->gotplt_refcount = 0;
686 eh->tls_type = GOT_UNKNOWN;
687 eh->ifunc_resolver_address = 0;
688 eh->ifunc_resolver_section = NULL;
694 /* Create an s390 ELF linker hash table. */
696 static struct bfd_link_hash_table *
697 elf_s390_link_hash_table_create (bfd *abfd)
699 struct elf_s390_link_hash_table *ret;
700 bfd_size_type amt = sizeof (struct elf_s390_link_hash_table);
702 ret = (struct elf_s390_link_hash_table *) bfd_zmalloc (amt);
706 if (!_bfd_elf_link_hash_table_init (&ret->elf, abfd, link_hash_newfunc,
707 sizeof (struct elf_s390_link_hash_entry),
714 return &ret->elf.root;
717 /* Create .got, .gotplt, and .rela.got sections in DYNOBJ, and set up
718 shortcuts to them in our hash table. */
721 create_got_section (bfd *dynobj,
722 struct bfd_link_info *info)
724 struct elf_s390_link_hash_table *htab;
726 if (! _bfd_elf_create_got_section (dynobj, info))
729 htab = elf_s390_hash_table (info);
733 htab->elf.sgot = bfd_get_linker_section (dynobj, ".got");
734 htab->elf.sgotplt = bfd_get_linker_section (dynobj, ".got.plt");
735 htab->elf.srelgot = bfd_get_linker_section (dynobj, ".rela.got");
736 if (!htab->elf.sgot || !htab->elf.sgotplt || !htab->elf.srelgot)
741 /* Create .plt, .rela.plt, .got, .got.plt, .rela.got, .dynbss, and
742 .rela.bss sections in DYNOBJ, and set up shortcuts to them in our
746 elf_s390_create_dynamic_sections (bfd *dynobj,
747 struct bfd_link_info *info)
749 struct elf_s390_link_hash_table *htab;
751 htab = elf_s390_hash_table (info);
755 if (!htab->elf.sgot && !create_got_section (dynobj, info))
758 if (!_bfd_elf_create_dynamic_sections (dynobj, info))
761 htab->elf.splt = bfd_get_linker_section (dynobj, ".plt");
762 htab->elf.srelplt = bfd_get_linker_section (dynobj, ".rela.plt");
763 htab->sdynbss = bfd_get_linker_section (dynobj, ".dynbss");
765 htab->srelbss = bfd_get_linker_section (dynobj, ".rela.bss");
767 if (!htab->elf.splt || !htab->elf.srelplt || !htab->sdynbss
768 || (!info->shared && !htab->srelbss))
774 /* Copy the extra info we tack onto an elf_link_hash_entry. */
777 elf_s390_copy_indirect_symbol (struct bfd_link_info *info,
778 struct elf_link_hash_entry *dir,
779 struct elf_link_hash_entry *ind)
781 struct elf_s390_link_hash_entry *edir, *eind;
783 edir = (struct elf_s390_link_hash_entry *) dir;
784 eind = (struct elf_s390_link_hash_entry *) ind;
786 if (eind->dyn_relocs != NULL)
788 if (edir->dyn_relocs != NULL)
790 struct elf_dyn_relocs **pp;
791 struct elf_dyn_relocs *p;
793 /* Add reloc counts against the indirect sym to the direct sym
794 list. Merge any entries against the same section. */
795 for (pp = &eind->dyn_relocs; (p = *pp) != NULL; )
797 struct elf_dyn_relocs *q;
799 for (q = edir->dyn_relocs; q != NULL; q = q->next)
800 if (q->sec == p->sec)
802 q->pc_count += p->pc_count;
803 q->count += p->count;
810 *pp = edir->dyn_relocs;
813 edir->dyn_relocs = eind->dyn_relocs;
814 eind->dyn_relocs = NULL;
817 if (ind->root.type == bfd_link_hash_indirect
818 && dir->got.refcount <= 0)
820 edir->tls_type = eind->tls_type;
821 eind->tls_type = GOT_UNKNOWN;
824 if (ELIMINATE_COPY_RELOCS
825 && ind->root.type != bfd_link_hash_indirect
826 && dir->dynamic_adjusted)
828 /* If called to transfer flags for a weakdef during processing
829 of elf_adjust_dynamic_symbol, don't copy non_got_ref.
830 We clear it ourselves for ELIMINATE_COPY_RELOCS. */
831 dir->ref_dynamic |= ind->ref_dynamic;
832 dir->ref_regular |= ind->ref_regular;
833 dir->ref_regular_nonweak |= ind->ref_regular_nonweak;
834 dir->needs_plt |= ind->needs_plt;
837 _bfd_elf_link_hash_copy_indirect (info, dir, ind);
841 elf_s390_tls_transition (struct bfd_link_info *info,
853 return R_390_TLS_LE64;
854 return R_390_TLS_IE64;
855 case R_390_TLS_GOTIE64:
857 return R_390_TLS_LE64;
858 return R_390_TLS_GOTIE64;
859 case R_390_TLS_LDM64:
860 return R_390_TLS_LE64;
866 /* Look through the relocs for a section during the first phase, and
867 allocate space in the global offset table or procedure linkage
871 elf_s390_check_relocs (bfd *abfd,
872 struct bfd_link_info *info,
874 const Elf_Internal_Rela *relocs)
876 struct elf_s390_link_hash_table *htab;
877 Elf_Internal_Shdr *symtab_hdr;
878 struct elf_link_hash_entry **sym_hashes;
879 const Elf_Internal_Rela *rel;
880 const Elf_Internal_Rela *rel_end;
882 bfd_signed_vma *local_got_refcounts;
883 int tls_type, old_tls_type;
885 if (info->relocatable)
888 BFD_ASSERT (is_s390_elf (abfd));
890 htab = elf_s390_hash_table (info);
894 symtab_hdr = &elf_symtab_hdr (abfd);
895 sym_hashes = elf_sym_hashes (abfd);
896 local_got_refcounts = elf_local_got_refcounts (abfd);
900 rel_end = relocs + sec->reloc_count;
901 for (rel = relocs; rel < rel_end; rel++)
904 unsigned long r_symndx;
905 struct elf_link_hash_entry *h;
906 Elf_Internal_Sym *isym;
908 r_symndx = ELF64_R_SYM (rel->r_info);
910 if (r_symndx >= NUM_SHDR_ENTRIES (symtab_hdr))
912 (*_bfd_error_handler) (_("%B: bad symbol index: %d"),
918 if (r_symndx < symtab_hdr->sh_info)
920 /* A local symbol. */
921 isym = bfd_sym_from_r_symndx (&htab->sym_cache,
926 if (ELF_ST_TYPE (isym->st_info) == STT_GNU_IFUNC)
928 struct plt_entry *plt;
930 if (htab->elf.dynobj == NULL)
931 htab->elf.dynobj = abfd;
933 if (!s390_elf_create_ifunc_sections (htab->elf.dynobj, info))
936 if (local_got_refcounts == NULL)
938 if (!elf_s390_allocate_local_syminfo (abfd, symtab_hdr))
940 local_got_refcounts = elf_local_got_refcounts (abfd);
942 plt = elf_s390_local_plt (abfd);
943 plt[r_symndx].plt.refcount++;
949 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
950 while (h->root.type == bfd_link_hash_indirect
951 || h->root.type == bfd_link_hash_warning)
952 h = (struct elf_link_hash_entry *) h->root.u.i.link;
954 /* PR15323, ref flags aren't set for references in the same
956 h->root.non_ir_ref = 1;
959 /* Create got section and local_got_refcounts array if they
961 r_type = elf_s390_tls_transition (info,
962 ELF64_R_TYPE (rel->r_info),
977 case R_390_GOTPLTENT:
979 case R_390_TLS_GOTIE12:
980 case R_390_TLS_GOTIE20:
981 case R_390_TLS_GOTIE64:
982 case R_390_TLS_IEENT:
984 case R_390_TLS_LDM64:
986 && local_got_refcounts == NULL)
988 if (!elf_s390_allocate_local_syminfo (abfd, symtab_hdr))
990 local_got_refcounts = elf_local_got_refcounts (abfd);
999 if (htab->elf.sgot == NULL)
1001 if (htab->elf.dynobj == NULL)
1002 htab->elf.dynobj = abfd;
1003 if (!create_got_section (htab->elf.dynobj, info))
1010 if (htab->elf.dynobj == NULL)
1011 htab->elf.dynobj = abfd;
1012 if (!s390_elf_create_ifunc_sections (htab->elf.dynobj, info))
1015 /* Make sure an IFUNC symbol defined in a non-shared object
1016 always gets a PLT slot. */
1017 if (s390_is_ifunc_symbol_p (h) && h->def_regular)
1019 /* The symbol is called by the dynamic loader in order
1020 to resolve the relocation. So it is in fact also
1029 case R_390_GOTOFF16:
1030 case R_390_GOTOFF32:
1031 case R_390_GOTOFF64:
1033 case R_390_GOTPCDBL:
1034 /* These relocs do not need a GOT slot. They just load the
1035 GOT pointer itself or address something else relative to
1036 the GOT. Since the GOT pointer has been set up above we
1040 case R_390_PLT16DBL:
1042 case R_390_PLT32DBL:
1044 case R_390_PLTOFF16:
1045 case R_390_PLTOFF32:
1046 case R_390_PLTOFF64:
1047 /* This symbol requires a procedure linkage table entry. We
1048 actually build the entry in adjust_dynamic_symbol,
1049 because this might be a case of linking PIC code which is
1050 never referenced by a dynamic object, in which case we
1051 don't need to generate a procedure linkage table entry
1054 /* If this is a local symbol, we resolve it directly without
1055 creating a procedure linkage table entry. */
1059 h->plt.refcount += 1;
1063 case R_390_GOTPLT12:
1064 case R_390_GOTPLT16:
1065 case R_390_GOTPLT20:
1066 case R_390_GOTPLT32:
1067 case R_390_GOTPLT64:
1068 case R_390_GOTPLTENT:
1069 /* This symbol requires either a procedure linkage table entry
1070 or an entry in the local got. We actually build the entry
1071 in adjust_dynamic_symbol because whether this is really a
1072 global reference can change and with it the fact if we have
1073 to create a plt entry or a local got entry. To be able to
1074 make a once global symbol a local one we have to keep track
1075 of the number of gotplt references that exist for this
1079 ((struct elf_s390_link_hash_entry *) h)->gotplt_refcount++;
1081 h->plt.refcount += 1;
1084 local_got_refcounts[r_symndx] += 1;
1087 case R_390_TLS_LDM64:
1088 htab->tls_ldm_got.refcount += 1;
1091 case R_390_TLS_IE64:
1092 case R_390_TLS_GOTIE12:
1093 case R_390_TLS_GOTIE20:
1094 case R_390_TLS_GOTIE64:
1095 case R_390_TLS_IEENT:
1097 info->flags |= DF_STATIC_TLS;
1106 case R_390_TLS_GD64:
1107 /* This symbol requires a global offset table entry. */
1116 tls_type = GOT_NORMAL;
1118 case R_390_TLS_GD64:
1119 tls_type = GOT_TLS_GD;
1121 case R_390_TLS_IE64:
1122 case R_390_TLS_GOTIE64:
1123 tls_type = GOT_TLS_IE;
1125 case R_390_TLS_GOTIE12:
1126 case R_390_TLS_GOTIE20:
1127 case R_390_TLS_IEENT:
1128 tls_type = GOT_TLS_IE_NLT;
1134 h->got.refcount += 1;
1135 old_tls_type = elf_s390_hash_entry(h)->tls_type;
1139 local_got_refcounts[r_symndx] += 1;
1140 old_tls_type = elf_s390_local_got_tls_type (abfd) [r_symndx];
1142 /* If a TLS symbol is accessed using IE at least once,
1143 there is no point to use dynamic model for it. */
1144 if (old_tls_type != tls_type && old_tls_type != GOT_UNKNOWN)
1146 if (old_tls_type == GOT_NORMAL || tls_type == GOT_NORMAL)
1148 (*_bfd_error_handler)
1149 (_("%B: `%s' accessed both as normal and thread local symbol"),
1150 abfd, h->root.root.string);
1153 if (old_tls_type > tls_type)
1154 tls_type = old_tls_type;
1157 if (old_tls_type != tls_type)
1160 elf_s390_hash_entry (h)->tls_type = tls_type;
1162 elf_s390_local_got_tls_type (abfd) [r_symndx] = tls_type;
1165 if (r_type != R_390_TLS_IE64)
1169 case R_390_TLS_LE64:
1172 info->flags |= DF_STATIC_TLS;
1186 /* If this reloc is in a read-only section, we might
1187 need a copy reloc. We can't check reliably at this
1188 stage whether the section is read-only, as input
1189 sections have not yet been mapped to output sections.
1190 Tentatively set the flag for now, and correct in
1191 adjust_dynamic_symbol. */
1196 /* We may need a .plt entry if the function this reloc
1197 refers to is in a shared lib. */
1198 h->plt.refcount += 1;
1202 /* If we are creating a shared library, and this is a reloc
1203 against a global symbol, or a non PC relative reloc
1204 against a local symbol, then we need to copy the reloc
1205 into the shared library. However, if we are linking with
1206 -Bsymbolic, we do not need to copy a reloc against a
1207 global symbol which is defined in an object we are
1208 including in the link (i.e., DEF_REGULAR is set). At
1209 this point we have not seen all the input files, so it is
1210 possible that DEF_REGULAR is not set now but will be set
1211 later (it is never cleared). In case of a weak definition,
1212 DEF_REGULAR may be cleared later by a strong definition in
1213 a shared library. We account for that possibility below by
1214 storing information in the relocs_copied field of the hash
1215 table entry. A similar situation occurs when creating
1216 shared libraries and symbol visibility changes render the
1219 If on the other hand, we are creating an executable, we
1220 may need to keep relocations for symbols satisfied by a
1221 dynamic library if we manage to avoid copy relocs for the
1224 && (sec->flags & SEC_ALLOC) != 0
1225 && ((ELF64_R_TYPE (rel->r_info) != R_390_PC16
1226 && ELF64_R_TYPE (rel->r_info) != R_390_PC16DBL
1227 && ELF64_R_TYPE (rel->r_info) != R_390_PC32
1228 && ELF64_R_TYPE (rel->r_info) != R_390_PC32DBL
1229 && ELF64_R_TYPE (rel->r_info) != R_390_PC64)
1231 && (! SYMBOLIC_BIND (info, h)
1232 || h->root.type == bfd_link_hash_defweak
1233 || !h->def_regular))))
1234 || (ELIMINATE_COPY_RELOCS
1236 && (sec->flags & SEC_ALLOC) != 0
1238 && (h->root.type == bfd_link_hash_defweak
1239 || !h->def_regular)))
1241 struct elf_dyn_relocs *p;
1242 struct elf_dyn_relocs **head;
1244 /* We must copy these reloc types into the output file.
1245 Create a reloc section in dynobj and make room for
1249 if (htab->elf.dynobj == NULL)
1250 htab->elf.dynobj = abfd;
1252 sreloc = _bfd_elf_make_dynamic_reloc_section
1253 (sec, htab->elf.dynobj, 3, abfd, /*rela?*/ TRUE);
1259 /* If this is a global symbol, we count the number of
1260 relocations we need for this symbol. */
1263 head = &((struct elf_s390_link_hash_entry *) h)->dyn_relocs;
1267 /* Track dynamic relocs needed for local syms too.
1268 We really need local syms available to do this
1273 isym = bfd_sym_from_r_symndx (&htab->sym_cache,
1278 s = bfd_section_from_elf_index (abfd, isym->st_shndx);
1282 vpp = &elf_section_data (s)->local_dynrel;
1283 head = (struct elf_dyn_relocs **) vpp;
1287 if (p == NULL || p->sec != sec)
1289 bfd_size_type amt = sizeof *p;
1290 p = ((struct elf_dyn_relocs *)
1291 bfd_alloc (htab->elf.dynobj, amt));
1302 if (ELF64_R_TYPE (rel->r_info) == R_390_PC16
1303 || ELF64_R_TYPE (rel->r_info) == R_390_PC16DBL
1304 || ELF64_R_TYPE (rel->r_info) == R_390_PC32
1305 || ELF64_R_TYPE (rel->r_info) == R_390_PC32DBL
1306 || ELF64_R_TYPE (rel->r_info) == R_390_PC64)
1311 /* This relocation describes the C++ object vtable hierarchy.
1312 Reconstruct it for later use during GC. */
1313 case R_390_GNU_VTINHERIT:
1314 if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
1318 /* This relocation describes which C++ vtable entries are actually
1319 used. Record for later use during GC. */
1320 case R_390_GNU_VTENTRY:
1321 BFD_ASSERT (h != NULL);
1323 && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
1335 /* Return the section that should be marked against GC for a given
1339 elf_s390_gc_mark_hook (asection *sec,
1340 struct bfd_link_info *info,
1341 Elf_Internal_Rela *rel,
1342 struct elf_link_hash_entry *h,
1343 Elf_Internal_Sym *sym)
1346 switch (ELF64_R_TYPE (rel->r_info))
1348 case R_390_GNU_VTINHERIT:
1349 case R_390_GNU_VTENTRY:
1353 return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym);
1356 /* Update the got entry reference counts for the section being removed. */
1359 elf_s390_gc_sweep_hook (bfd *abfd,
1360 struct bfd_link_info *info,
1362 const Elf_Internal_Rela *relocs)
1364 struct elf_s390_link_hash_table *htab;
1365 Elf_Internal_Shdr *symtab_hdr;
1366 struct elf_link_hash_entry **sym_hashes;
1367 bfd_signed_vma *local_got_refcounts;
1368 const Elf_Internal_Rela *rel, *relend;
1370 if (info->relocatable)
1373 htab = elf_s390_hash_table (info);
1377 elf_section_data (sec)->local_dynrel = NULL;
1379 symtab_hdr = &elf_symtab_hdr (abfd);
1380 sym_hashes = elf_sym_hashes (abfd);
1381 local_got_refcounts = elf_local_got_refcounts (abfd);
1383 relend = relocs + sec->reloc_count;
1384 for (rel = relocs; rel < relend; rel++)
1386 unsigned long r_symndx;
1387 unsigned int r_type;
1388 struct elf_link_hash_entry *h = NULL;
1390 r_symndx = ELF64_R_SYM (rel->r_info);
1391 if (r_symndx >= symtab_hdr->sh_info)
1393 struct elf_s390_link_hash_entry *eh;
1394 struct elf_dyn_relocs **pp;
1395 struct elf_dyn_relocs *p;
1397 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
1398 while (h->root.type == bfd_link_hash_indirect
1399 || h->root.type == bfd_link_hash_warning)
1400 h = (struct elf_link_hash_entry *) h->root.u.i.link;
1401 eh = (struct elf_s390_link_hash_entry *) h;
1403 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; pp = &p->next)
1406 /* Everything must go for SEC. */
1413 Elf_Internal_Sym *isym;
1415 /* A local symbol. */
1416 isym = bfd_sym_from_r_symndx (&htab->sym_cache,
1421 if (ELF_ST_TYPE (isym->st_info) == STT_GNU_IFUNC)
1423 struct plt_entry *plt = elf_s390_local_plt (abfd);
1424 if (plt[r_symndx].plt.refcount > 0)
1425 plt[r_symndx].plt.refcount--;
1429 r_type = ELF64_R_TYPE (rel->r_info);
1430 r_type = elf_s390_tls_transition (info, r_type, h != NULL);
1433 case R_390_TLS_LDM64:
1434 if (htab->tls_ldm_got.refcount > 0)
1435 htab->tls_ldm_got.refcount -= 1;
1438 case R_390_TLS_GD64:
1439 case R_390_TLS_IE64:
1440 case R_390_TLS_GOTIE12:
1441 case R_390_TLS_GOTIE20:
1442 case R_390_TLS_GOTIE64:
1443 case R_390_TLS_IEENT:
1449 case R_390_GOTOFF16:
1450 case R_390_GOTOFF32:
1451 case R_390_GOTOFF64:
1453 case R_390_GOTPCDBL:
1457 if (h->got.refcount > 0)
1458 h->got.refcount -= 1;
1460 else if (local_got_refcounts != NULL)
1462 if (local_got_refcounts[r_symndx] > 0)
1463 local_got_refcounts[r_symndx] -= 1;
1482 case R_390_PLT16DBL:
1484 case R_390_PLT32DBL:
1486 case R_390_PLTOFF16:
1487 case R_390_PLTOFF32:
1488 case R_390_PLTOFF64:
1491 if (h->plt.refcount > 0)
1492 h->plt.refcount -= 1;
1496 case R_390_GOTPLT12:
1497 case R_390_GOTPLT16:
1498 case R_390_GOTPLT20:
1499 case R_390_GOTPLT32:
1500 case R_390_GOTPLT64:
1501 case R_390_GOTPLTENT:
1504 if (h->plt.refcount > 0)
1506 ((struct elf_s390_link_hash_entry *) h)->gotplt_refcount--;
1507 h->plt.refcount -= 1;
1510 else if (local_got_refcounts != NULL)
1512 if (local_got_refcounts[r_symndx] > 0)
1513 local_got_refcounts[r_symndx] -= 1;
1525 /* Make sure we emit a GOT entry if the symbol was supposed to have a PLT
1526 entry but we found we will not create any. Called when we find we will
1527 not have any PLT for this symbol, by for example
1528 elf_s390_adjust_dynamic_symbol when we're doing a proper dynamic link,
1529 or elf_s390_size_dynamic_sections if no dynamic sections will be
1530 created (we're only linking static objects). */
1533 elf_s390_adjust_gotplt (struct elf_s390_link_hash_entry *h)
1535 if (h->elf.root.type == bfd_link_hash_warning)
1536 h = (struct elf_s390_link_hash_entry *) h->elf.root.u.i.link;
1538 if (h->gotplt_refcount <= 0)
1541 /* We simply add the number of gotplt references to the number
1542 * of got references for this symbol. */
1543 h->elf.got.refcount += h->gotplt_refcount;
1544 h->gotplt_refcount = -1;
1547 /* Adjust a symbol defined by a dynamic object and referenced by a
1548 regular object. The current definition is in some section of the
1549 dynamic object, but we're not including those sections. We have to
1550 change the definition to something the rest of the link can
1554 elf_s390_adjust_dynamic_symbol (struct bfd_link_info *info,
1555 struct elf_link_hash_entry *h)
1557 struct elf_s390_link_hash_table *htab;
1560 /* STT_GNU_IFUNC symbol must go through PLT. */
1561 if (s390_is_ifunc_symbol_p (h))
1564 /* If this is a function, put it in the procedure linkage table. We
1565 will fill in the contents of the procedure linkage table later
1566 (although we could actually do it here). */
1567 if (h->type == STT_FUNC
1570 if (h->plt.refcount <= 0
1571 || SYMBOL_CALLS_LOCAL (info, h)
1572 || (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
1573 && h->root.type == bfd_link_hash_undefweak))
1575 /* This case can occur if we saw a PLT32 reloc in an input
1576 file, but the symbol was never referred to by a dynamic
1577 object, or if all references were garbage collected. In
1578 such a case, we don't actually need to build a procedure
1579 linkage table, and we can just do a PC32 reloc instead. */
1580 h->plt.offset = (bfd_vma) -1;
1582 elf_s390_adjust_gotplt((struct elf_s390_link_hash_entry *) h);
1588 /* It's possible that we incorrectly decided a .plt reloc was
1589 needed for an R_390_PC32 reloc to a non-function sym in
1590 check_relocs. We can't decide accurately between function and
1591 non-function syms in check-relocs; Objects loaded later in
1592 the link may change h->type. So fix it now. */
1593 h->plt.offset = (bfd_vma) -1;
1595 /* If this is a weak symbol, and there is a real definition, the
1596 processor independent code will have arranged for us to see the
1597 real definition first, and we can just use the same value. */
1598 if (h->u.weakdef != NULL)
1600 BFD_ASSERT (h->u.weakdef->root.type == bfd_link_hash_defined
1601 || h->u.weakdef->root.type == bfd_link_hash_defweak);
1602 h->root.u.def.section = h->u.weakdef->root.u.def.section;
1603 h->root.u.def.value = h->u.weakdef->root.u.def.value;
1604 if (ELIMINATE_COPY_RELOCS || info->nocopyreloc)
1605 h->non_got_ref = h->u.weakdef->non_got_ref;
1609 /* This is a reference to a symbol defined by a dynamic object which
1610 is not a function. */
1612 /* If we are creating a shared library, we must presume that the
1613 only references to the symbol are via the global offset table.
1614 For such cases we need not do anything here; the relocations will
1615 be handled correctly by relocate_section. */
1619 /* If there are no references to this symbol that do not use the
1620 GOT, we don't need to generate a copy reloc. */
1621 if (!h->non_got_ref)
1624 /* If -z nocopyreloc was given, we won't generate them either. */
1625 if (info->nocopyreloc)
1631 if (ELIMINATE_COPY_RELOCS)
1633 struct elf_s390_link_hash_entry * eh;
1634 struct elf_dyn_relocs *p;
1636 eh = (struct elf_s390_link_hash_entry *) h;
1637 for (p = eh->dyn_relocs; p != NULL; p = p->next)
1639 s = p->sec->output_section;
1640 if (s != NULL && (s->flags & SEC_READONLY) != 0)
1644 /* If we didn't find any dynamic relocs in read-only sections, then
1645 we'll be keeping the dynamic relocs and avoiding the copy reloc. */
1653 /* We must allocate the symbol in our .dynbss section, which will
1654 become part of the .bss section of the executable. There will be
1655 an entry for this symbol in the .dynsym section. The dynamic
1656 object will contain position independent code, so all references
1657 from the dynamic object to this symbol will go through the global
1658 offset table. The dynamic linker will use the .dynsym entry to
1659 determine the address it must put in the global offset table, so
1660 both the dynamic object and the regular object will refer to the
1661 same memory location for the variable. */
1663 htab = elf_s390_hash_table (info);
1667 /* We must generate a R_390_COPY reloc to tell the dynamic linker to
1668 copy the initial value out of the dynamic object and into the
1669 runtime process image. */
1670 if ((h->root.u.def.section->flags & SEC_ALLOC) != 0 && h->size != 0)
1672 htab->srelbss->size += sizeof (Elf64_External_Rela);
1678 return _bfd_elf_adjust_dynamic_copy (h, s);
1681 /* Allocate space in .plt, .got and associated reloc sections for
1685 allocate_dynrelocs (struct elf_link_hash_entry *h,
1688 struct bfd_link_info *info;
1689 struct elf_s390_link_hash_table *htab;
1690 struct elf_s390_link_hash_entry *eh = (struct elf_s390_link_hash_entry *)h;
1691 struct elf_dyn_relocs *p;
1693 if (h->root.type == bfd_link_hash_indirect)
1696 info = (struct bfd_link_info *) inf;
1697 htab = elf_s390_hash_table (info);
1701 /* Since STT_GNU_IFUNC symbol must go through PLT, we handle it
1702 here if it is defined and referenced in a non-shared object. */
1703 if (s390_is_ifunc_symbol_p (h) && h->def_regular)
1704 return s390_elf_allocate_ifunc_dyn_relocs (info, h,
1706 else if (htab->elf.dynamic_sections_created
1707 && h->plt.refcount > 0)
1709 /* Make sure this symbol is output as a dynamic symbol.
1710 Undefined weak syms won't yet be marked as dynamic. */
1711 if (h->dynindx == -1
1712 && !h->forced_local)
1714 if (! bfd_elf_link_record_dynamic_symbol (info, h))
1719 || WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, 0, h))
1721 asection *s = htab->elf.splt;
1723 /* If this is the first .plt entry, make room for the special
1726 s->size += PLT_FIRST_ENTRY_SIZE;
1728 h->plt.offset = s->size;
1730 /* If this symbol is not defined in a regular file, and we are
1731 not generating a shared library, then set the symbol to this
1732 location in the .plt. This is required to make function
1733 pointers compare as equal between the normal executable and
1734 the shared library. */
1738 h->root.u.def.section = s;
1739 h->root.u.def.value = h->plt.offset;
1742 /* Make room for this entry. */
1743 s->size += PLT_ENTRY_SIZE;
1745 /* We also need to make an entry in the .got.plt section, which
1746 will be placed in the .got section by the linker script. */
1747 htab->elf.sgotplt->size += GOT_ENTRY_SIZE;
1749 /* We also need to make an entry in the .rela.plt section. */
1750 htab->elf.srelplt->size += sizeof (Elf64_External_Rela);
1754 h->plt.offset = (bfd_vma) -1;
1756 elf_s390_adjust_gotplt((struct elf_s390_link_hash_entry *) h);
1761 h->plt.offset = (bfd_vma) -1;
1763 elf_s390_adjust_gotplt((struct elf_s390_link_hash_entry *) h);
1766 /* If R_390_TLS_{IE64,GOTIE64,GOTIE12,IEENT} symbol is now local to
1767 the binary, we can optimize a bit. IE64 and GOTIE64 get converted
1768 to R_390_TLS_LE64 requiring no TLS entry. For GOTIE12 and IEENT
1769 we can save the dynamic TLS relocation. */
1770 if (h->got.refcount > 0
1773 && elf_s390_hash_entry(h)->tls_type >= GOT_TLS_IE)
1775 if (elf_s390_hash_entry(h)->tls_type == GOT_TLS_IE_NLT)
1776 /* For the GOTIE access without a literal pool entry the offset has
1777 to be stored somewhere. The immediate value in the instruction
1778 is not bit enough so the value is stored in the got. */
1780 h->got.offset = htab->elf.sgot->size;
1781 htab->elf.sgot->size += GOT_ENTRY_SIZE;
1784 h->got.offset = (bfd_vma) -1;
1786 else if (h->got.refcount > 0)
1790 int tls_type = elf_s390_hash_entry(h)->tls_type;
1792 /* Make sure this symbol is output as a dynamic symbol.
1793 Undefined weak syms won't yet be marked as dynamic. */
1794 if (h->dynindx == -1
1795 && !h->forced_local)
1797 if (! bfd_elf_link_record_dynamic_symbol (info, h))
1802 h->got.offset = s->size;
1803 s->size += GOT_ENTRY_SIZE;
1804 /* R_390_TLS_GD64 needs 2 consecutive GOT slots. */
1805 if (tls_type == GOT_TLS_GD)
1806 s->size += GOT_ENTRY_SIZE;
1807 dyn = htab->elf.dynamic_sections_created;
1808 /* R_390_TLS_IE64 needs one dynamic relocation,
1809 R_390_TLS_GD64 needs one if local symbol and two if global. */
1810 if ((tls_type == GOT_TLS_GD && h->dynindx == -1)
1811 || tls_type >= GOT_TLS_IE)
1812 htab->elf.srelgot->size += sizeof (Elf64_External_Rela);
1813 else if (tls_type == GOT_TLS_GD)
1814 htab->elf.srelgot->size += 2 * sizeof (Elf64_External_Rela);
1815 else if ((ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
1816 || h->root.type != bfd_link_hash_undefweak)
1818 || WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, 0, h)))
1819 htab->elf.srelgot->size += sizeof (Elf64_External_Rela);
1822 h->got.offset = (bfd_vma) -1;
1824 if (eh->dyn_relocs == NULL)
1827 /* In the shared -Bsymbolic case, discard space allocated for
1828 dynamic pc-relative relocs against symbols which turn out to be
1829 defined in regular objects. For the normal shared case, discard
1830 space for pc-relative relocs that have become local due to symbol
1831 visibility changes. */
1835 if (SYMBOL_CALLS_LOCAL (info, h))
1837 struct elf_dyn_relocs **pp;
1839 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; )
1841 p->count -= p->pc_count;
1850 /* Also discard relocs on undefined weak syms with non-default
1852 if (eh->dyn_relocs != NULL
1853 && h->root.type == bfd_link_hash_undefweak)
1855 if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT)
1856 eh->dyn_relocs = NULL;
1858 /* Make sure undefined weak symbols are output as a dynamic
1860 else if (h->dynindx == -1
1861 && !h->forced_local)
1863 if (! bfd_elf_link_record_dynamic_symbol (info, h))
1868 else if (ELIMINATE_COPY_RELOCS)
1870 /* For the non-shared case, discard space for relocs against
1871 symbols which turn out to need copy relocs or are not
1877 || (htab->elf.dynamic_sections_created
1878 && (h->root.type == bfd_link_hash_undefweak
1879 || h->root.type == bfd_link_hash_undefined))))
1881 /* Make sure this symbol is output as a dynamic symbol.
1882 Undefined weak syms won't yet be marked as dynamic. */
1883 if (h->dynindx == -1
1884 && !h->forced_local)
1886 if (! bfd_elf_link_record_dynamic_symbol (info, h))
1890 /* If that succeeded, we know we'll be keeping all the
1892 if (h->dynindx != -1)
1896 eh->dyn_relocs = NULL;
1901 /* Finally, allocate space. */
1902 for (p = eh->dyn_relocs; p != NULL; p = p->next)
1904 asection *sreloc = elf_section_data (p->sec)->sreloc;
1905 sreloc->size += p->count * sizeof (Elf64_External_Rela);
1911 /* Find any dynamic relocs that apply to read-only sections. */
1914 readonly_dynrelocs (struct elf_link_hash_entry *h, void * inf)
1916 struct elf_s390_link_hash_entry *eh;
1917 struct elf_dyn_relocs *p;
1919 eh = (struct elf_s390_link_hash_entry *) h;
1920 for (p = eh->dyn_relocs; p != NULL; p = p->next)
1922 asection *s = p->sec->output_section;
1924 if (s != NULL && (s->flags & SEC_READONLY) != 0)
1926 struct bfd_link_info *info = (struct bfd_link_info *) inf;
1928 info->flags |= DF_TEXTREL;
1930 /* Not an error, just cut short the traversal. */
1937 /* Set the sizes of the dynamic sections. */
1940 elf_s390_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED,
1941 struct bfd_link_info *info)
1943 struct elf_s390_link_hash_table *htab;
1949 htab = elf_s390_hash_table (info);
1953 dynobj = htab->elf.dynobj;
1957 if (htab->elf.dynamic_sections_created)
1959 /* Set the contents of the .interp section to the interpreter. */
1960 if (info->executable)
1962 s = bfd_get_linker_section (dynobj, ".interp");
1965 s->size = sizeof ELF_DYNAMIC_INTERPRETER;
1966 s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
1970 /* Set up .got offsets for local syms, and space for local dynamic
1972 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next)
1974 bfd_signed_vma *local_got;
1975 bfd_signed_vma *end_local_got;
1976 char *local_tls_type;
1977 bfd_size_type locsymcount;
1978 Elf_Internal_Shdr *symtab_hdr;
1980 struct plt_entry *local_plt;
1983 if (! is_s390_elf (ibfd))
1986 for (s = ibfd->sections; s != NULL; s = s->next)
1988 struct elf_dyn_relocs *p;
1990 for (p = elf_section_data (s)->local_dynrel; p != NULL; p = p->next)
1992 if (!bfd_is_abs_section (p->sec)
1993 && bfd_is_abs_section (p->sec->output_section))
1995 /* Input section has been discarded, either because
1996 it is a copy of a linkonce section or due to
1997 linker script /DISCARD/, so we'll be discarding
2000 else if (p->count != 0)
2002 srela = elf_section_data (p->sec)->sreloc;
2003 srela->size += p->count * sizeof (Elf64_External_Rela);
2004 if ((p->sec->output_section->flags & SEC_READONLY) != 0)
2005 info->flags |= DF_TEXTREL;
2010 local_got = elf_local_got_refcounts (ibfd);
2014 symtab_hdr = &elf_symtab_hdr (ibfd);
2015 locsymcount = symtab_hdr->sh_info;
2016 end_local_got = local_got + locsymcount;
2017 local_tls_type = elf_s390_local_got_tls_type (ibfd);
2019 srela = htab->elf.srelgot;
2020 for (; local_got < end_local_got; ++local_got, ++local_tls_type)
2024 *local_got = s->size;
2025 s->size += GOT_ENTRY_SIZE;
2026 if (*local_tls_type == GOT_TLS_GD)
2027 s->size += GOT_ENTRY_SIZE;
2029 srela->size += sizeof (Elf64_External_Rela);
2032 *local_got = (bfd_vma) -1;
2035 local_plt = elf_s390_local_plt (ibfd);
2036 for (i = 0; i < symtab_hdr->sh_info; i++)
2038 if (local_plt[i].plt.refcount > 0)
2040 local_plt[i].plt.offset = htab->elf.iplt->size;
2041 htab->elf.iplt->size += PLT_ENTRY_SIZE;
2042 htab->elf.igotplt->size += GOT_ENTRY_SIZE;
2043 htab->elf.irelplt->size += sizeof (Elf64_External_Rela);
2046 local_plt[i].plt.offset = (bfd_vma) -1;
2050 if (htab->tls_ldm_got.refcount > 0)
2052 /* Allocate 2 got entries and 1 dynamic reloc for R_390_TLS_LDM64
2054 htab->tls_ldm_got.offset = htab->elf.sgot->size;
2055 htab->elf.sgot->size += 2 * GOT_ENTRY_SIZE;
2056 htab->elf.srelgot->size += sizeof (Elf64_External_Rela);
2059 htab->tls_ldm_got.offset = -1;
2061 /* Allocate global sym .plt and .got entries, and space for global
2062 sym dynamic relocs. */
2063 elf_link_hash_traverse (&htab->elf, allocate_dynrelocs, info);
2065 /* We now have determined the sizes of the various dynamic sections.
2066 Allocate memory for them. */
2068 for (s = dynobj->sections; s != NULL; s = s->next)
2070 if ((s->flags & SEC_LINKER_CREATED) == 0)
2073 if (s == htab->elf.splt
2074 || s == htab->elf.sgot
2075 || s == htab->elf.sgotplt
2076 || s == htab->sdynbss
2077 || s == htab->elf.iplt
2078 || s == htab->elf.igotplt
2079 || s == htab->irelifunc)
2081 /* Strip this section if we don't need it; see the
2084 else if (CONST_STRNEQ (bfd_get_section_name (dynobj, s), ".rela"))
2086 if (s->size != 0 && s != htab->elf.srelplt)
2089 /* We use the reloc_count field as a counter if we need
2090 to copy relocs into the output file. */
2095 /* It's not one of our sections, so don't allocate space. */
2101 /* If we don't need this section, strip it from the
2102 output file. This is to handle .rela.bss and
2103 .rela.plt. We must create it in
2104 create_dynamic_sections, because it must be created
2105 before the linker maps input sections to output
2106 sections. The linker does that before
2107 adjust_dynamic_symbol is called, and it is that
2108 function which decides whether anything needs to go
2109 into these sections. */
2111 s->flags |= SEC_EXCLUDE;
2115 if ((s->flags & SEC_HAS_CONTENTS) == 0)
2118 /* Allocate memory for the section contents. We use bfd_zalloc
2119 here in case unused entries are not reclaimed before the
2120 section's contents are written out. This should not happen,
2121 but this way if it does, we get a R_390_NONE reloc instead
2123 s->contents = (bfd_byte *) bfd_zalloc (dynobj, s->size);
2124 if (s->contents == NULL)
2128 if (htab->elf.dynamic_sections_created)
2130 /* Add some entries to the .dynamic section. We fill in the
2131 values later, in elf_s390_finish_dynamic_sections, but we
2132 must add the entries now so that we get the correct size for
2133 the .dynamic section. The DT_DEBUG entry is filled in by the
2134 dynamic linker and used by the debugger. */
2135 #define add_dynamic_entry(TAG, VAL) \
2136 _bfd_elf_add_dynamic_entry (info, TAG, VAL)
2138 if (info->executable)
2140 if (!add_dynamic_entry (DT_DEBUG, 0))
2144 if (htab->elf.splt->size != 0)
2146 if (!add_dynamic_entry (DT_PLTGOT, 0)
2147 || !add_dynamic_entry (DT_PLTRELSZ, 0)
2148 || !add_dynamic_entry (DT_PLTREL, DT_RELA)
2149 || !add_dynamic_entry (DT_JMPREL, 0))
2155 if (!add_dynamic_entry (DT_RELA, 0)
2156 || !add_dynamic_entry (DT_RELASZ, 0)
2157 || !add_dynamic_entry (DT_RELAENT, sizeof (Elf64_External_Rela)))
2160 /* If any dynamic relocs apply to a read-only section,
2161 then we need a DT_TEXTREL entry. */
2162 if ((info->flags & DF_TEXTREL) == 0)
2163 elf_link_hash_traverse (&htab->elf, readonly_dynrelocs,
2166 if ((info->flags & DF_TEXTREL) != 0)
2168 if (!add_dynamic_entry (DT_TEXTREL, 0))
2173 #undef add_dynamic_entry
2178 /* Return the base VMA address which should be subtracted from real addresses
2179 when resolving @dtpoff relocation.
2180 This is PT_TLS segment p_vaddr. */
2183 dtpoff_base (struct bfd_link_info *info)
2185 /* If tls_sec is NULL, we should have signalled an error already. */
2186 if (elf_hash_table (info)->tls_sec == NULL)
2188 return elf_hash_table (info)->tls_sec->vma;
2191 /* Return the relocation value for @tpoff relocation
2192 if STT_TLS virtual address is ADDRESS. */
2195 tpoff (struct bfd_link_info *info, bfd_vma address)
2197 struct elf_link_hash_table *htab = elf_hash_table (info);
2199 /* If tls_sec is NULL, we should have signalled an error already. */
2200 if (htab->tls_sec == NULL)
2202 return htab->tls_size + htab->tls_sec->vma - address;
2205 /* Complain if TLS instruction relocation is against an invalid
2209 invalid_tls_insn (bfd *input_bfd,
2210 asection *input_section,
2211 Elf_Internal_Rela *rel)
2213 reloc_howto_type *howto;
2215 howto = elf_howto_table + ELF64_R_TYPE (rel->r_info);
2216 (*_bfd_error_handler)
2217 (_("%B(%A+0x%lx): invalid instruction for TLS relocation %s"),
2220 (long) rel->r_offset,
2222 bfd_set_error (bfd_error_bad_value);
2225 /* Relocate a 390 ELF section. */
2228 elf_s390_relocate_section (bfd *output_bfd,
2229 struct bfd_link_info *info,
2231 asection *input_section,
2233 Elf_Internal_Rela *relocs,
2234 Elf_Internal_Sym *local_syms,
2235 asection **local_sections)
2237 struct elf_s390_link_hash_table *htab;
2238 Elf_Internal_Shdr *symtab_hdr;
2239 struct elf_link_hash_entry **sym_hashes;
2240 bfd_vma *local_got_offsets;
2241 Elf_Internal_Rela *rel;
2242 Elf_Internal_Rela *relend;
2244 BFD_ASSERT (is_s390_elf (input_bfd));
2246 htab = elf_s390_hash_table (info);
2250 symtab_hdr = &elf_symtab_hdr (input_bfd);
2251 sym_hashes = elf_sym_hashes (input_bfd);
2252 local_got_offsets = elf_local_got_offsets (input_bfd);
2255 relend = relocs + input_section->reloc_count;
2256 for (; rel < relend; rel++)
2258 unsigned int r_type;
2259 reloc_howto_type *howto;
2260 unsigned long r_symndx;
2261 struct elf_link_hash_entry *h;
2262 Elf_Internal_Sym *sym;
2266 bfd_boolean unresolved_reloc;
2267 bfd_reloc_status_type r;
2269 asection *base_got = htab->elf.sgot;
2271 r_type = ELF64_R_TYPE (rel->r_info);
2272 if (r_type == (int) R_390_GNU_VTINHERIT
2273 || r_type == (int) R_390_GNU_VTENTRY)
2275 if (r_type >= (int) R_390_max)
2277 bfd_set_error (bfd_error_bad_value);
2281 howto = elf_howto_table + r_type;
2282 r_symndx = ELF64_R_SYM (rel->r_info);
2287 unresolved_reloc = FALSE;
2288 if (r_symndx < symtab_hdr->sh_info)
2290 sym = local_syms + r_symndx;
2291 sec = local_sections[r_symndx];
2293 if (ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC)
2295 struct plt_entry *local_plt = elf_s390_local_plt (input_bfd);
2296 if (local_plt == NULL)
2299 /* Address of the PLT slot. */
2300 relocation = (htab->elf.iplt->output_section->vma
2301 + htab->elf.iplt->output_offset
2302 + local_plt[r_symndx].plt.offset);
2306 case R_390_PLTOFF16:
2307 case R_390_PLTOFF32:
2308 case R_390_PLTOFF64:
2309 relocation -= htab->elf.sgot->output_section->vma;
2311 case R_390_GOTPLT12:
2312 case R_390_GOTPLT16:
2313 case R_390_GOTPLT20:
2314 case R_390_GOTPLT32:
2315 case R_390_GOTPLT64:
2316 case R_390_GOTPLTENT:
2324 /* Write the PLT slot address into the GOT slot. */
2325 bfd_put_64 (output_bfd, relocation,
2326 htab->elf.sgot->contents +
2327 local_got_offsets[r_symndx]);
2328 relocation = (local_got_offsets[r_symndx] +
2329 htab->elf.sgot->output_offset);
2331 if (r_type == R_390_GOTENT || r_type == R_390_GOTPLTENT)
2332 relocation += htab->elf.sgot->output_section->vma;
2338 /* The output section is needed later in
2339 finish_dynamic_section when creating the dynamic
2341 local_plt[r_symndx].sec = sec;
2345 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
2349 bfd_boolean warned ATTRIBUTE_UNUSED;
2351 RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
2352 r_symndx, symtab_hdr, sym_hashes,
2354 unresolved_reloc, warned);
2357 if (sec != NULL && discarded_section (sec))
2358 RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section,
2359 rel, 1, relend, howto, 0, contents);
2361 if (info->relocatable)
2366 case R_390_GOTPLT12:
2367 case R_390_GOTPLT16:
2368 case R_390_GOTPLT20:
2369 case R_390_GOTPLT32:
2370 case R_390_GOTPLT64:
2371 case R_390_GOTPLTENT:
2372 /* There are three cases for a GOTPLT relocation. 1) The
2373 relocation is against the jump slot entry of a plt that
2374 will get emitted to the output file. 2) The relocation
2375 is against the jump slot of a plt entry that has been
2376 removed. elf_s390_adjust_gotplt has created a GOT entry
2377 as replacement. 3) The relocation is against a local symbol.
2378 Cases 2) and 3) are the same as the GOT relocation code
2379 so we just have to test for case 1 and fall through for
2381 if (h != NULL && h->plt.offset != (bfd_vma) -1)
2385 if (s390_is_ifunc_symbol_p (h))
2387 plt_index = h->plt.offset / PLT_ENTRY_SIZE;
2388 relocation = (plt_index * GOT_ENTRY_SIZE +
2389 htab->elf.igotplt->output_offset);
2390 if (r_type == R_390_GOTPLTENT)
2391 relocation += htab->elf.igotplt->output_section->vma;
2396 Current offset - size first entry / entry size. */
2397 plt_index = (h->plt.offset - PLT_FIRST_ENTRY_SIZE) /
2400 /* Offset in GOT is PLT index plus GOT headers(3)
2401 times 4, addr & GOT addr. */
2402 relocation = (plt_index + 3) * GOT_ENTRY_SIZE;
2403 if (r_type == R_390_GOTPLTENT)
2404 relocation += htab->elf.sgot->output_section->vma;
2406 unresolved_reloc = FALSE;
2417 /* Relocation is to the entry for this symbol in the global
2419 if (base_got == NULL)
2426 off = h->got.offset;
2427 dyn = htab->elf.dynamic_sections_created;
2429 if (s390_is_ifunc_symbol_p (h))
2431 BFD_ASSERT (h->plt.offset != (bfd_vma) -1);
2432 if (off == (bfd_vma)-1)
2434 /* No explicit GOT usage so redirect to the
2436 base_got = htab->elf.igotplt;
2437 off = h->plt.offset / PLT_ENTRY_SIZE * GOT_ENTRY_SIZE;
2441 /* Explicit GOT slots must contain the address
2442 of the PLT slot. This will be handled in
2443 finish_dynamic_symbol. */
2446 else if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared, h)
2448 && SYMBOL_REFERENCES_LOCAL (info, h))
2449 || (ELF_ST_VISIBILITY (h->other)
2450 && h->root.type == bfd_link_hash_undefweak))
2452 /* This is actually a static link, or it is a
2453 -Bsymbolic link and the symbol is defined
2454 locally, or the symbol was forced to be local
2455 because of a version file. We must initialize
2456 this entry in the global offset table. Since the
2457 offset must always be a multiple of 2, we use the
2458 least significant bit to record whether we have
2459 initialized it already.
2461 When doing a dynamic link, we create a .rel.got
2462 relocation entry to initialize the value. This
2463 is done in the finish_dynamic_symbol routine. */
2468 bfd_put_64 (output_bfd, relocation,
2469 base_got->contents + off);
2474 unresolved_reloc = FALSE;
2478 if (local_got_offsets == NULL)
2481 off = local_got_offsets[r_symndx];
2483 /* The offset must always be a multiple of 8. We use
2484 the least significant bit to record whether we have
2485 already generated the necessary reloc. */
2490 bfd_put_64 (output_bfd, relocation,
2491 htab->elf.sgot->contents + off);
2496 Elf_Internal_Rela outrel;
2499 s = htab->elf.srelgot;
2503 outrel.r_offset = (htab->elf.sgot->output_section->vma
2504 + htab->elf.sgot->output_offset
2506 outrel.r_info = ELF64_R_INFO (0, R_390_RELATIVE);
2507 outrel.r_addend = relocation;
2509 loc += s->reloc_count++ * sizeof (Elf64_External_Rela);
2510 bfd_elf64_swap_reloca_out (output_bfd, &outrel, loc);
2513 local_got_offsets[r_symndx] |= 1;
2517 if (off >= (bfd_vma) -2)
2520 relocation = base_got->output_offset + off;
2522 /* For @GOTENT the relocation is against the offset between
2523 the instruction and the symbols entry in the GOT and not
2524 between the start of the GOT and the symbols entry. We
2525 add the vma of the GOT to get the correct value. */
2526 if ( r_type == R_390_GOTENT
2527 || r_type == R_390_GOTPLTENT)
2528 relocation += base_got->output_section->vma;
2532 case R_390_GOTOFF16:
2533 case R_390_GOTOFF32:
2534 case R_390_GOTOFF64:
2535 /* Relocation is relative to the start of the global offset
2538 /* Note that sgot->output_offset is not involved in this
2539 calculation. We always want the start of .got. If we
2540 defined _GLOBAL_OFFSET_TABLE in a different way, as is
2541 permitted by the ABI, we might have to change this
2543 relocation -= htab->elf.sgot->output_section->vma;
2547 case R_390_GOTPCDBL:
2548 /* Use global offset table as symbol value. */
2549 relocation = htab->elf.sgot->output_section->vma;
2550 unresolved_reloc = FALSE;
2553 case R_390_PLT16DBL:
2555 case R_390_PLT32DBL:
2557 /* Relocation is to the entry for this symbol in the
2558 procedure linkage table. */
2560 /* Resolve a PLT32 reloc against a local symbol directly,
2561 without using the procedure linkage table. */
2565 if (h->plt.offset == (bfd_vma) -1
2566 || (htab->elf.splt == NULL && !s390_is_ifunc_symbol_p (h)))
2568 /* We didn't make a PLT entry for this symbol. This
2569 happens when statically linking PIC code, or when
2570 using -Bsymbolic. */
2573 if (s390_is_ifunc_symbol_p (h))
2574 relocation = (htab->elf.iplt->output_section->vma
2575 + htab->elf.iplt->output_offset
2578 relocation = (htab->elf.splt->output_section->vma
2579 + htab->elf.splt->output_offset
2581 unresolved_reloc = FALSE;
2584 case R_390_PLTOFF16:
2585 case R_390_PLTOFF32:
2586 case R_390_PLTOFF64:
2587 /* Relocation is to the entry for this symbol in the
2588 procedure linkage table relative to the start of the GOT. */
2590 /* For local symbols or if we didn't make a PLT entry for
2591 this symbol resolve the symbol directly. */
2593 || h->plt.offset == (bfd_vma) -1
2594 || (htab->elf.splt == NULL && !s390_is_ifunc_symbol_p (h)))
2596 relocation -= htab->elf.sgot->output_section->vma;
2600 if (s390_is_ifunc_symbol_p (h))
2601 relocation = (htab->elf.iplt->output_section->vma
2602 + htab->elf.iplt->output_offset
2604 - htab->elf.sgot->output_section->vma);
2606 relocation = (htab->elf.splt->output_section->vma
2607 + htab->elf.splt->output_offset
2609 - htab->elf.sgot->output_section->vma);
2610 unresolved_reloc = FALSE;
2624 && s390_is_ifunc_symbol_p (h)
2627 if (!info->shared || !h->non_got_ref)
2629 /* For a non-shared object STT_GNU_IFUNC symbol must
2631 relocation = (htab->elf.iplt->output_section->vma
2632 + htab->elf.iplt->output_offset
2638 /* For shared objects a runtime relocation is needed. */
2640 Elf_Internal_Rela outrel;
2643 /* Need a dynamic relocation to get the real function
2645 outrel.r_offset = _bfd_elf_section_offset (output_bfd,
2649 if (outrel.r_offset == (bfd_vma) -1
2650 || outrel.r_offset == (bfd_vma) -2)
2653 outrel.r_offset += (input_section->output_section->vma
2654 + input_section->output_offset);
2656 if (h->dynindx == -1
2658 || info->executable)
2660 /* This symbol is resolved locally. */
2661 outrel.r_info = ELF64_R_INFO (0, R_390_IRELATIVE);
2662 outrel.r_addend = (h->root.u.def.value
2663 + h->root.u.def.section->output_section->vma
2664 + h->root.u.def.section->output_offset);
2668 outrel.r_info = ELF64_R_INFO (h->dynindx, r_type);
2669 outrel.r_addend = 0;
2672 sreloc = htab->elf.irelifunc;
2673 elf_append_rela (output_bfd, sreloc, &outrel);
2675 /* If this reloc is against an external symbol, we
2676 do not want to fiddle with the addend. Otherwise,
2677 we need to include the symbol value so that it
2678 becomes an addend for the dynamic reloc. For an
2679 internal symbol, we have updated addend. */
2684 if ((input_section->flags & SEC_ALLOC) == 0)
2689 || ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
2690 || h->root.type != bfd_link_hash_undefweak)
2691 && ((r_type != R_390_PC16
2692 && r_type != R_390_PC16DBL
2693 && r_type != R_390_PC32
2694 && r_type != R_390_PC32DBL
2695 && r_type != R_390_PC64)
2696 || !SYMBOL_CALLS_LOCAL (info, h)))
2697 || (ELIMINATE_COPY_RELOCS
2704 || h->root.type == bfd_link_hash_undefweak
2705 || h->root.type == bfd_link_hash_undefined)))
2707 Elf_Internal_Rela outrel;
2708 bfd_boolean skip, relocate;
2712 /* When generating a shared object, these relocations
2713 are copied into the output file to be resolved at run
2719 _bfd_elf_section_offset (output_bfd, info, input_section,
2721 if (outrel.r_offset == (bfd_vma) -1)
2723 else if (outrel.r_offset == (bfd_vma) -2)
2724 skip = TRUE, relocate = TRUE;
2726 outrel.r_offset += (input_section->output_section->vma
2727 + input_section->output_offset);
2730 memset (&outrel, 0, sizeof outrel);
2733 && (r_type == R_390_PC16
2734 || r_type == R_390_PC16DBL
2735 || r_type == R_390_PC32
2736 || r_type == R_390_PC32DBL
2737 || r_type == R_390_PC64
2739 || !SYMBOLIC_BIND (info, h)
2740 || !h->def_regular))
2742 outrel.r_info = ELF64_R_INFO (h->dynindx, r_type);
2743 outrel.r_addend = rel->r_addend;
2747 /* This symbol is local, or marked to become local. */
2748 outrel.r_addend = relocation + rel->r_addend;
2749 if (r_type == R_390_64)
2752 outrel.r_info = ELF64_R_INFO (0, R_390_RELATIVE);
2758 if (bfd_is_abs_section (sec))
2760 else if (sec == NULL || sec->owner == NULL)
2762 bfd_set_error(bfd_error_bad_value);
2769 osec = sec->output_section;
2770 sindx = elf_section_data (osec)->dynindx;
2774 osec = htab->elf.text_index_section;
2775 sindx = elf_section_data (osec)->dynindx;
2777 BFD_ASSERT (sindx != 0);
2779 /* We are turning this relocation into one
2780 against a section symbol, so subtract out
2781 the output section's address but not the
2782 offset of the input section in the output
2784 outrel.r_addend -= osec->vma;
2786 outrel.r_info = ELF64_R_INFO (sindx, r_type);
2790 sreloc = elf_section_data (input_section)->sreloc;
2794 loc = sreloc->contents;
2795 loc += sreloc->reloc_count++ * sizeof (Elf64_External_Rela);
2796 bfd_elf64_swap_reloca_out (output_bfd, &outrel, loc);
2798 /* If this reloc is against an external symbol, we do
2799 not want to fiddle with the addend. Otherwise, we
2800 need to include the symbol value so that it becomes
2801 an addend for the dynamic reloc. */
2808 /* Relocations for tls literal pool entries. */
2809 case R_390_TLS_IE64:
2812 Elf_Internal_Rela outrel;
2816 outrel.r_offset = rel->r_offset
2817 + input_section->output_section->vma
2818 + input_section->output_offset;
2819 outrel.r_info = ELF64_R_INFO (0, R_390_RELATIVE);
2820 sreloc = elf_section_data (input_section)->sreloc;
2823 loc = sreloc->contents;
2824 loc += sreloc->reloc_count++ * sizeof (Elf64_External_Rela);
2825 bfd_elf64_swap_reloc_out (output_bfd, &outrel, loc);
2829 case R_390_TLS_GD64:
2830 case R_390_TLS_GOTIE64:
2831 r_type = elf_s390_tls_transition (info, r_type, h == NULL);
2832 tls_type = GOT_UNKNOWN;
2833 if (h == NULL && local_got_offsets)
2834 tls_type = elf_s390_local_got_tls_type (input_bfd) [r_symndx];
2837 tls_type = elf_s390_hash_entry(h)->tls_type;
2838 if (!info->shared && h->dynindx == -1 && tls_type >= GOT_TLS_IE)
2839 r_type = R_390_TLS_LE64;
2841 if (r_type == R_390_TLS_GD64 && tls_type >= GOT_TLS_IE)
2842 r_type = R_390_TLS_IE64;
2844 if (r_type == R_390_TLS_LE64)
2846 /* This relocation gets optimized away by the local exec
2847 access optimization. */
2848 BFD_ASSERT (! unresolved_reloc);
2849 bfd_put_64 (output_bfd, -tpoff (info, relocation),
2850 contents + rel->r_offset);
2854 if (htab->elf.sgot == NULL)
2858 off = h->got.offset;
2861 if (local_got_offsets == NULL)
2864 off = local_got_offsets[r_symndx];
2873 Elf_Internal_Rela outrel;
2877 if (htab->elf.srelgot == NULL)
2880 outrel.r_offset = (htab->elf.sgot->output_section->vma
2881 + htab->elf.sgot->output_offset + off);
2883 indx = h && h->dynindx != -1 ? h->dynindx : 0;
2884 if (r_type == R_390_TLS_GD64)
2885 dr_type = R_390_TLS_DTPMOD;
2887 dr_type = R_390_TLS_TPOFF;
2888 if (dr_type == R_390_TLS_TPOFF && indx == 0)
2889 outrel.r_addend = relocation - dtpoff_base (info);
2891 outrel.r_addend = 0;
2892 outrel.r_info = ELF64_R_INFO (indx, dr_type);
2893 loc = htab->elf.srelgot->contents;
2894 loc += htab->elf.srelgot->reloc_count++
2895 * sizeof (Elf64_External_Rela);
2896 bfd_elf64_swap_reloca_out (output_bfd, &outrel, loc);
2898 if (r_type == R_390_TLS_GD64)
2902 BFD_ASSERT (! unresolved_reloc);
2903 bfd_put_64 (output_bfd,
2904 relocation - dtpoff_base (info),
2905 htab->elf.sgot->contents + off + GOT_ENTRY_SIZE);
2909 outrel.r_info = ELF64_R_INFO (indx, R_390_TLS_DTPOFF);
2910 outrel.r_offset += GOT_ENTRY_SIZE;
2911 outrel.r_addend = 0;
2912 htab->elf.srelgot->reloc_count++;
2913 loc += sizeof (Elf64_External_Rela);
2914 bfd_elf64_swap_reloca_out (output_bfd, &outrel, loc);
2921 local_got_offsets[r_symndx] |= 1;
2924 if (off >= (bfd_vma) -2)
2926 if (r_type == ELF64_R_TYPE (rel->r_info))
2928 relocation = htab->elf.sgot->output_offset + off;
2929 if (r_type == R_390_TLS_IE64 || r_type == R_390_TLS_IEENT)
2930 relocation += htab->elf.sgot->output_section->vma;
2931 unresolved_reloc = FALSE;
2935 bfd_put_64 (output_bfd, htab->elf.sgot->output_offset + off,
2936 contents + rel->r_offset);
2941 case R_390_TLS_GOTIE12:
2942 case R_390_TLS_GOTIE20:
2943 case R_390_TLS_IEENT:
2946 if (local_got_offsets == NULL)
2948 off = local_got_offsets[r_symndx];
2950 goto emit_tls_relocs;
2954 off = h->got.offset;
2955 tls_type = elf_s390_hash_entry(h)->tls_type;
2956 if (info->shared || h->dynindx != -1 || tls_type < GOT_TLS_IE)
2957 goto emit_tls_relocs;
2960 if (htab->elf.sgot == NULL)
2963 BFD_ASSERT (! unresolved_reloc);
2964 bfd_put_64 (output_bfd, -tpoff (info, relocation),
2965 htab->elf.sgot->contents + off);
2966 relocation = htab->elf.sgot->output_offset + off;
2967 if (r_type == R_390_TLS_IEENT)
2968 relocation += htab->elf.sgot->output_section->vma;
2969 unresolved_reloc = FALSE;
2972 case R_390_TLS_LDM64:
2974 /* The literal pool entry this relocation refers to gets ignored
2975 by the optimized code of the local exec model. Do nothing
2976 and the value will turn out zero. */
2979 if (htab->elf.sgot == NULL)
2982 off = htab->tls_ldm_got.offset;
2987 Elf_Internal_Rela outrel;
2990 if (htab->elf.srelgot == NULL)
2993 outrel.r_offset = (htab->elf.sgot->output_section->vma
2994 + htab->elf.sgot->output_offset + off);
2996 bfd_put_64 (output_bfd, 0,
2997 htab->elf.sgot->contents + off + GOT_ENTRY_SIZE);
2998 outrel.r_info = ELF64_R_INFO (0, R_390_TLS_DTPMOD);
2999 outrel.r_addend = 0;
3000 loc = htab->elf.srelgot->contents;
3001 loc += htab->elf.srelgot->reloc_count++
3002 * sizeof (Elf64_External_Rela);
3003 bfd_elf64_swap_reloca_out (output_bfd, &outrel, loc);
3004 htab->tls_ldm_got.offset |= 1;
3006 relocation = htab->elf.sgot->output_offset + off;
3007 unresolved_reloc = FALSE;
3010 case R_390_TLS_LE64:
3013 /* Linking a shared library with non-fpic code requires
3014 a R_390_TLS_TPOFF relocation. */
3015 Elf_Internal_Rela outrel;
3020 outrel.r_offset = rel->r_offset
3021 + input_section->output_section->vma
3022 + input_section->output_offset;
3023 if (h != NULL && h->dynindx != -1)
3027 outrel.r_info = ELF64_R_INFO (indx, R_390_TLS_TPOFF);
3029 outrel.r_addend = relocation - dtpoff_base (info);
3031 outrel.r_addend = 0;
3032 sreloc = elf_section_data (input_section)->sreloc;
3035 loc = sreloc->contents;
3036 loc += sreloc->reloc_count++ * sizeof (Elf64_External_Rela);
3037 bfd_elf64_swap_reloca_out (output_bfd, &outrel, loc);
3041 BFD_ASSERT (! unresolved_reloc);
3042 bfd_put_64 (output_bfd, -tpoff (info, relocation),
3043 contents + rel->r_offset);
3047 case R_390_TLS_LDO64:
3048 if (info->shared || (input_section->flags & SEC_DEBUGGING))
3049 relocation -= dtpoff_base (info);
3051 /* When converting LDO to LE, we must negate. */
3052 relocation = -tpoff (info, relocation);
3055 /* Relocations for tls instructions. */
3056 case R_390_TLS_LOAD:
3057 case R_390_TLS_GDCALL:
3058 case R_390_TLS_LDCALL:
3059 tls_type = GOT_UNKNOWN;
3060 if (h == NULL && local_got_offsets)
3061 tls_type = elf_s390_local_got_tls_type (input_bfd) [r_symndx];
3063 tls_type = elf_s390_hash_entry(h)->tls_type;
3065 if (tls_type == GOT_TLS_GD)
3068 if (r_type == R_390_TLS_LOAD)
3070 if (!info->shared && (h == NULL || h->dynindx == -1))
3072 /* IE->LE transition. Four valid cases:
3073 lg %rx,(0,%ry) -> sllg %rx,%ry,0
3074 lg %rx,(%ry,0) -> sllg %rx,%ry,0
3075 lg %rx,(%ry,%r12) -> sllg %rx,%ry,0
3076 lg %rx,(%r12,%ry) -> sllg %rx,%ry,0 */
3077 unsigned int insn0, insn1, ry;
3079 insn0 = bfd_get_32 (input_bfd, contents + rel->r_offset);
3080 insn1 = bfd_get_16 (input_bfd, contents + rel->r_offset + 4);
3081 if (insn1 != 0x0004)
3082 invalid_tls_insn (input_bfd, input_section, rel);
3084 if ((insn0 & 0xff00f000) == 0xe3000000)
3085 /* lg %rx,0(%ry,0) -> sllg %rx,%ry,0 */
3086 ry = (insn0 & 0x000f0000);
3087 else if ((insn0 & 0xff0f0000) == 0xe3000000)
3088 /* lg %rx,0(0,%ry) -> sllg %rx,%ry,0 */
3089 ry = (insn0 & 0x0000f000) << 4;
3090 else if ((insn0 & 0xff00f000) == 0xe300c000)
3091 /* lg %rx,0(%ry,%r12) -> sllg %rx,%ry,0 */
3092 ry = (insn0 & 0x000f0000);
3093 else if ((insn0 & 0xff0f0000) == 0xe30c0000)
3094 /* lg %rx,0(%r12,%ry) -> sllg %rx,%ry,0 */
3095 ry = (insn0 & 0x0000f000) << 4;
3097 invalid_tls_insn (input_bfd, input_section, rel);
3098 insn0 = 0xeb000000 | (insn0 & 0x00f00000) | ry;
3100 bfd_put_32 (output_bfd, insn0, contents + rel->r_offset);
3101 bfd_put_16 (output_bfd, insn1, contents + rel->r_offset + 4);
3104 else if (r_type == R_390_TLS_GDCALL)
3106 unsigned int insn0, insn1;
3108 insn0 = bfd_get_32 (input_bfd, contents + rel->r_offset);
3109 insn1 = bfd_get_16 (input_bfd, contents + rel->r_offset + 4);
3110 if ((insn0 & 0xffff0000) != 0xc0e50000)
3111 invalid_tls_insn (input_bfd, input_section, rel);
3112 if (!info->shared && (h == NULL || h->dynindx == -1))
3114 /* GD->LE transition.
3115 brasl %r14,__tls_get_addr@plt -> brcl 0,. */
3121 /* GD->IE transition.
3122 brasl %r14,__tls_get_addr@plt -> lg %r2,0(%r2,%r12) */
3126 bfd_put_32 (output_bfd, insn0, contents + rel->r_offset);
3127 bfd_put_16 (output_bfd, insn1, contents + rel->r_offset + 4);
3129 else if (r_type == R_390_TLS_LDCALL)
3133 unsigned int insn0, insn1;
3135 insn0 = bfd_get_32 (input_bfd, contents + rel->r_offset);
3136 insn1 = bfd_get_16 (input_bfd, contents + rel->r_offset + 4);
3137 if ((insn0 & 0xffff0000) != 0xc0e50000)
3138 invalid_tls_insn (input_bfd, input_section, rel);
3139 /* LD->LE transition.
3140 brasl %r14,__tls_get_addr@plt -> brcl 0,. */
3143 bfd_put_32 (output_bfd, insn0, contents + rel->r_offset);
3144 bfd_put_16 (output_bfd, insn1, contents + rel->r_offset + 4);
3153 /* Dynamic relocs are not propagated for SEC_DEBUGGING sections
3154 because such sections are not SEC_ALLOC and thus ld.so will
3155 not process them. */
3156 if (unresolved_reloc
3157 && !((input_section->flags & SEC_DEBUGGING) != 0
3159 && _bfd_elf_section_offset (output_bfd, info, input_section,
3160 rel->r_offset) != (bfd_vma) -1)
3161 (*_bfd_error_handler)
3162 (_("%B(%A+0x%lx): unresolvable %s relocation against symbol `%s'"),
3165 (long) rel->r_offset,
3167 h->root.root.string);
3171 if (r_type == R_390_20
3172 || r_type == R_390_GOT20
3173 || r_type == R_390_GOTPLT20
3174 || r_type == R_390_TLS_GOTIE20)
3176 relocation += rel->r_addend;
3177 relocation = (relocation&0xfff) << 8 | (relocation&0xff000) >> 12;
3178 r = _bfd_final_link_relocate (howto, input_bfd, input_section,
3179 contents, rel->r_offset,
3183 r = _bfd_final_link_relocate (howto, input_bfd, input_section,
3184 contents, rel->r_offset,
3185 relocation, rel->r_addend);
3187 if (r != bfd_reloc_ok)
3192 name = h->root.root.string;
3195 name = bfd_elf_string_from_elf_section (input_bfd,
3196 symtab_hdr->sh_link,
3201 name = bfd_section_name (input_bfd, sec);
3204 if (r == bfd_reloc_overflow)
3207 if (! ((*info->callbacks->reloc_overflow)
3208 (info, (h ? &h->root : NULL), name, howto->name,
3209 (bfd_vma) 0, input_bfd, input_section,
3215 (*_bfd_error_handler)
3216 (_("%B(%A+0x%lx): reloc against `%s': error %d"),
3217 input_bfd, input_section,
3218 (long) rel->r_offset, name, (int) r);
3227 /* Generate the PLT slots together with the dynamic relocations needed
3228 for IFUNC symbols. */
3231 elf_s390_finish_ifunc_symbol (bfd *output_bfd,
3232 struct bfd_link_info *info,
3233 struct elf_link_hash_entry *h,
3234 struct elf_s390_link_hash_table *htab,
3236 bfd_vma resolver_address)
3240 Elf_Internal_Rela rela;
3242 asection *plt, *gotplt, *relplt;
3244 if (htab->elf.iplt == NULL
3245 || htab->elf.igotplt == NULL
3246 || htab->elf.irelplt == NULL)
3249 /* Index of the PLT slot within iplt section. */
3250 plt_index = plt_offset / PLT_ENTRY_SIZE;
3251 plt = htab->elf.iplt;
3252 /* Offset into the igot.plt section. */
3253 got_offset = plt_index * GOT_ENTRY_SIZE;
3254 gotplt = htab->elf.igotplt;
3255 relplt = htab->elf.irelplt;
3257 /* Fill in the blueprint of a PLT. */
3258 memcpy (plt->contents + plt_offset, elf_s390x_plt_entry,
3261 /* Fixup the relative address to the GOT entry */
3262 bfd_put_32 (output_bfd,
3263 (gotplt->output_section->vma +
3264 gotplt->output_offset + got_offset
3265 - (plt->output_section->vma +
3266 plt->output_offset +
3268 plt->contents + plt_offset + 2);
3269 /* Fixup the relative branch to PLT 0 */
3270 bfd_put_32 (output_bfd, - (plt->output_offset +
3271 (PLT_ENTRY_SIZE * plt_index) + 22)/2,
3272 plt->contents + plt_offset + 24);
3273 /* Fixup offset into .rela.plt section. */
3274 bfd_put_32 (output_bfd, relplt->output_offset +
3275 plt_index * sizeof (Elf64_External_Rela),
3276 plt->contents + plt_offset + 28);
3278 /* Fill in the entry in the global offset table.
3279 Points to instruction after GOT offset. */
3280 bfd_put_64 (output_bfd,
3281 (plt->output_section->vma
3282 + plt->output_offset
3285 gotplt->contents + got_offset);
3287 /* Fill in the entry in the .rela.plt section. */
3288 rela.r_offset = (gotplt->output_section->vma
3289 + gotplt->output_offset
3294 || ((info->executable
3295 || ELF_ST_VISIBILITY (h->other) != STV_DEFAULT)
3298 /* The symbol can be locally resolved. */
3299 rela.r_info = ELF64_R_INFO (0, R_390_IRELATIVE);
3300 rela.r_addend = resolver_address;
3304 rela.r_info = ELF64_R_INFO (h->dynindx, R_390_JMP_SLOT);
3308 loc = relplt->contents + plt_index * sizeof (Elf64_External_Rela);
3309 bfd_elf64_swap_reloca_out (output_bfd, &rela, loc);
3313 /* Finish up dynamic symbol handling. We set the contents of various
3314 dynamic sections here. */
3317 elf_s390_finish_dynamic_symbol (bfd *output_bfd,
3318 struct bfd_link_info *info,
3319 struct elf_link_hash_entry *h,
3320 Elf_Internal_Sym *sym)
3322 struct elf_s390_link_hash_table *htab;
3323 struct elf_s390_link_hash_entry *eh = (struct elf_s390_link_hash_entry*)h;
3325 htab = elf_s390_hash_table (info);
3329 if (h->plt.offset != (bfd_vma) -1)
3333 Elf_Internal_Rela rela;
3336 /* This symbol has an entry in the procedure linkage table. Set
3338 if (s390_is_ifunc_symbol_p (h))
3340 /* If we can resolve the IFUNC symbol locally we generate an
3342 elf_s390_finish_ifunc_symbol (output_bfd, info, h, htab, h->plt.offset,
3343 eh->ifunc_resolver_address +
3344 eh->ifunc_resolver_section->output_offset +
3345 eh->ifunc_resolver_section->output_section->vma);
3347 /* Fallthrough. Handling of explicit GOT slots of IFUNC
3348 symbols is below. */
3352 if (h->dynindx == -1
3353 || htab->elf.splt == NULL
3354 || htab->elf.sgotplt == NULL
3355 || htab->elf.srelplt == NULL)
3359 Current offset - size first entry / entry size. */
3360 plt_index = (h->plt.offset - PLT_FIRST_ENTRY_SIZE) / PLT_ENTRY_SIZE;
3362 /* Offset in GOT is PLT index plus GOT headers(3) times 8,
3364 got_offset = (plt_index + 3) * GOT_ENTRY_SIZE;
3366 /* Fill in the blueprint of a PLT. */
3367 memcpy (htab->elf.splt->contents + h->plt.offset, elf_s390x_plt_entry,
3370 /* Fixup the relative address to the GOT entry */
3371 bfd_put_32 (output_bfd,
3372 (htab->elf.sgotplt->output_section->vma +
3373 htab->elf.sgotplt->output_offset + got_offset
3374 - (htab->elf.splt->output_section->vma +
3375 htab->elf.splt->output_offset +
3377 htab->elf.splt->contents + h->plt.offset + 2);
3378 /* Fixup the relative branch to PLT 0 */
3379 bfd_put_32 (output_bfd, - (PLT_FIRST_ENTRY_SIZE +
3380 (PLT_ENTRY_SIZE * plt_index) + 22)/2,
3381 htab->elf.splt->contents + h->plt.offset + 24);
3382 /* Fixup offset into .rela.plt section. */
3383 bfd_put_32 (output_bfd, plt_index * sizeof (Elf64_External_Rela),
3384 htab->elf.splt->contents + h->plt.offset + 28);
3386 /* Fill in the entry in the global offset table.
3387 Points to instruction after GOT offset. */
3388 bfd_put_64 (output_bfd,
3389 (htab->elf.splt->output_section->vma
3390 + htab->elf.splt->output_offset
3393 htab->elf.sgotplt->contents + got_offset);
3395 /* Fill in the entry in the .rela.plt section. */
3396 rela.r_offset = (htab->elf.sgotplt->output_section->vma
3397 + htab->elf.sgotplt->output_offset
3399 rela.r_info = ELF64_R_INFO (h->dynindx, R_390_JMP_SLOT);
3401 loc = htab->elf.srelplt->contents + plt_index *
3402 sizeof (Elf64_External_Rela);
3403 bfd_elf64_swap_reloca_out (output_bfd, &rela, loc);
3405 if (!h->def_regular)
3407 /* Mark the symbol as undefined, rather than as defined in
3408 the .plt section. Leave the value alone. This is a clue
3409 for the dynamic linker, to make function pointer
3410 comparisons work between an application and shared
3412 sym->st_shndx = SHN_UNDEF;
3417 if (h->got.offset != (bfd_vma) -1
3418 && elf_s390_hash_entry(h)->tls_type != GOT_TLS_GD
3419 && elf_s390_hash_entry(h)->tls_type != GOT_TLS_IE
3420 && elf_s390_hash_entry(h)->tls_type != GOT_TLS_IE_NLT)
3422 Elf_Internal_Rela rela;
3425 /* This symbol has an entry in the global offset table. Set it
3427 if (htab->elf.sgot == NULL || htab->elf.srelgot == NULL)
3430 rela.r_offset = (htab->elf.sgot->output_section->vma
3431 + htab->elf.sgot->output_offset
3432 + (h->got.offset &~ (bfd_vma) 1));
3434 if (h->def_regular && s390_is_ifunc_symbol_p (h))
3438 /* An explicit GOT slot usage needs GLOB_DAT. If the
3439 symbol references local the implicit got.iplt slot
3440 will be used and the IRELATIVE reloc has been created
3446 /* For non-shared objects explicit GOT slots must be
3447 filled with the PLT slot address for pointer
3448 equality reasons. */
3449 bfd_put_64 (output_bfd, (htab->elf.iplt->output_section->vma
3450 + htab->elf.iplt->output_offset
3452 htab->elf.sgot->contents + h->got.offset);
3456 else if (info->shared
3457 && SYMBOL_REFERENCES_LOCAL (info, h))
3459 /* If this is a static link, or it is a -Bsymbolic link and
3460 the symbol is defined locally or was forced to be local
3461 because of a version file, we just want to emit a
3462 RELATIVE reloc. The entry in the global offset table
3463 will already have been initialized in the
3464 relocate_section function. */
3465 if (!h->def_regular)
3467 BFD_ASSERT((h->got.offset & 1) != 0);
3468 rela.r_info = ELF64_R_INFO (0, R_390_RELATIVE);
3469 rela.r_addend = (h->root.u.def.value
3470 + h->root.u.def.section->output_section->vma
3471 + h->root.u.def.section->output_offset);
3475 BFD_ASSERT((h->got.offset & 1) == 0);
3477 bfd_put_64 (output_bfd, (bfd_vma) 0, htab->elf.sgot->contents + h->got.offset);
3478 rela.r_info = ELF64_R_INFO (h->dynindx, R_390_GLOB_DAT);
3482 loc = htab->elf.srelgot->contents;
3483 loc += htab->elf.srelgot->reloc_count++ * sizeof (Elf64_External_Rela);
3484 bfd_elf64_swap_reloca_out (output_bfd, &rela, loc);
3489 Elf_Internal_Rela rela;
3492 /* This symbols needs a copy reloc. Set it up. */
3494 if (h->dynindx == -1
3495 || (h->root.type != bfd_link_hash_defined
3496 && h->root.type != bfd_link_hash_defweak)
3497 || htab->srelbss == NULL)
3500 rela.r_offset = (h->root.u.def.value
3501 + h->root.u.def.section->output_section->vma
3502 + h->root.u.def.section->output_offset);
3503 rela.r_info = ELF64_R_INFO (h->dynindx, R_390_COPY);
3505 loc = htab->srelbss->contents;
3506 loc += htab->srelbss->reloc_count++ * sizeof (Elf64_External_Rela);
3507 bfd_elf64_swap_reloca_out (output_bfd, &rela, loc);
3510 /* Mark some specially defined symbols as absolute. */
3511 if (h == htab->elf.hdynamic
3512 || h == htab->elf.hgot
3513 || h == htab->elf.hplt)
3514 sym->st_shndx = SHN_ABS;
3519 /* Used to decide how to sort relocs in an optimal manner for the
3520 dynamic linker, before writing them out. */
3522 static enum elf_reloc_type_class
3523 elf_s390_reloc_type_class (const struct bfd_link_info *info ATTRIBUTE_UNUSED,
3524 const asection *rel_sec ATTRIBUTE_UNUSED,
3525 const Elf_Internal_Rela *rela)
3527 switch ((int) ELF64_R_TYPE (rela->r_info))
3529 case R_390_RELATIVE:
3530 return reloc_class_relative;
3531 case R_390_JMP_SLOT:
3532 return reloc_class_plt;
3534 return reloc_class_copy;
3536 return reloc_class_normal;
3540 /* Finish up the dynamic sections. */
3543 elf_s390_finish_dynamic_sections (bfd *output_bfd,
3544 struct bfd_link_info *info)
3546 struct elf_s390_link_hash_table *htab;
3552 htab = elf_s390_hash_table (info);
3556 dynobj = htab->elf.dynobj;
3557 sdyn = bfd_get_linker_section (dynobj, ".dynamic");
3559 if (htab->elf.dynamic_sections_created)
3561 Elf64_External_Dyn *dyncon, *dynconend;
3563 if (sdyn == NULL || htab->elf.sgot == NULL)
3566 dyncon = (Elf64_External_Dyn *) sdyn->contents;
3567 dynconend = (Elf64_External_Dyn *) (sdyn->contents + sdyn->size);
3568 for (; dyncon < dynconend; dyncon++)
3570 Elf_Internal_Dyn dyn;
3573 bfd_elf64_swap_dyn_in (dynobj, dyncon, &dyn);
3581 dyn.d_un.d_ptr = htab->elf.sgot->output_section->vma;
3585 dyn.d_un.d_ptr = htab->elf.srelplt->output_section->vma;
3589 s = htab->elf.srelplt->output_section;
3590 dyn.d_un.d_val = s->size;
3594 /* The procedure linkage table relocs (DT_JMPREL) should
3595 not be included in the overall relocs (DT_RELA).
3596 Therefore, we override the DT_RELASZ entry here to
3597 make it not include the JMPREL relocs. Since the
3598 linker script arranges for .rela.plt to follow all
3599 other relocation sections, we don't have to worry
3600 about changing the DT_RELA entry. */
3601 s = htab->elf.srelplt->output_section;
3602 dyn.d_un.d_val -= s->size;
3606 bfd_elf64_swap_dyn_out (output_bfd, &dyn, dyncon);
3609 /* Fill in the special first entry in the procedure linkage table. */
3610 if (htab->elf.splt && htab->elf.splt->size > 0)
3612 /* fill in blueprint for plt 0 entry */
3613 memcpy (htab->elf.splt->contents, elf_s390x_first_plt_entry,
3614 PLT_FIRST_ENTRY_SIZE);
3615 /* Fixup relative address to start of GOT */
3616 bfd_put_32 (output_bfd,
3617 (htab->elf.sgotplt->output_section->vma +
3618 htab->elf.sgotplt->output_offset
3619 - htab->elf.splt->output_section->vma - 6)/2,
3620 htab->elf.splt->contents + 8);
3622 elf_section_data (htab->elf.splt->output_section)
3623 ->this_hdr.sh_entsize = PLT_ENTRY_SIZE;
3626 if (htab->elf.sgotplt)
3628 /* Fill in the first three entries in the global offset table. */
3629 if (htab->elf.sgotplt->size > 0)
3631 bfd_put_64 (output_bfd,
3632 (sdyn == NULL ? (bfd_vma) 0
3633 : sdyn->output_section->vma + sdyn->output_offset),
3634 htab->elf.sgotplt->contents);
3635 /* One entry for shared object struct ptr. */
3636 bfd_put_64 (output_bfd, (bfd_vma) 0, htab->elf.sgotplt->contents + 8);
3637 /* One entry for _dl_runtime_resolve. */
3638 bfd_put_64 (output_bfd, (bfd_vma) 0, htab->elf.sgotplt->contents + 12);
3641 elf_section_data (htab->elf.sgot->output_section)
3642 ->this_hdr.sh_entsize = 8;
3645 /* Finish dynamic symbol for local IFUNC symbols. */
3646 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next)
3648 struct plt_entry *local_plt;
3649 Elf_Internal_Sym *isym;
3650 Elf_Internal_Shdr *symtab_hdr;
3652 symtab_hdr = &elf_symtab_hdr (ibfd);
3654 local_plt = elf_s390_local_plt (ibfd);
3655 if (local_plt != NULL)
3656 for (i = 0; i < symtab_hdr->sh_info; i++)
3658 if (local_plt[i].plt.offset != (bfd_vma) -1)
3660 asection *sec = local_plt[i].sec;
3661 isym = bfd_sym_from_r_symndx (&htab->sym_cache, ibfd, i);
3665 if (ELF_ST_TYPE (isym->st_info) == STT_GNU_IFUNC)
3666 elf_s390_finish_ifunc_symbol (output_bfd, info, NULL, htab,
3667 local_plt[i].plt.offset,
3669 + sec->output_section->vma
3670 + sec->output_offset);
3679 /* Return address for Ith PLT stub in section PLT, for relocation REL
3680 or (bfd_vma) -1 if it should not be included. */
3683 elf_s390_plt_sym_val (bfd_vma i, const asection *plt,
3684 const arelent *rel ATTRIBUTE_UNUSED)
3686 return plt->vma + PLT_FIRST_ENTRY_SIZE + i * PLT_ENTRY_SIZE;
3689 /* Why was the hash table entry size definition changed from
3690 ARCH_SIZE/8 to 4? This breaks the 64 bit dynamic linker and
3691 this is the only reason for the s390_elf64_size_info structure. */
3693 const struct elf_size_info s390_elf64_size_info =
3695 sizeof (Elf64_External_Ehdr),
3696 sizeof (Elf64_External_Phdr),
3697 sizeof (Elf64_External_Shdr),
3698 sizeof (Elf64_External_Rel),
3699 sizeof (Elf64_External_Rela),
3700 sizeof (Elf64_External_Sym),
3701 sizeof (Elf64_External_Dyn),
3702 sizeof (Elf_External_Note),
3703 8, /* hash-table entry size. */
3704 1, /* internal relocations per external relocations. */
3705 64, /* arch_size. */
3706 3, /* log_file_align. */
3707 ELFCLASS64, EV_CURRENT,
3708 bfd_elf64_write_out_phdrs,
3709 bfd_elf64_write_shdrs_and_ehdr,
3710 bfd_elf64_checksum_contents,
3711 bfd_elf64_write_relocs,
3712 bfd_elf64_swap_symbol_in,
3713 bfd_elf64_swap_symbol_out,
3714 bfd_elf64_slurp_reloc_table,
3715 bfd_elf64_slurp_symbol_table,
3716 bfd_elf64_swap_dyn_in,
3717 bfd_elf64_swap_dyn_out,
3718 bfd_elf64_swap_reloc_in,
3719 bfd_elf64_swap_reloc_out,
3720 bfd_elf64_swap_reloca_in,
3721 bfd_elf64_swap_reloca_out
3724 #define TARGET_BIG_SYM bfd_elf64_s390_vec
3725 #define TARGET_BIG_NAME "elf64-s390"
3726 #define ELF_ARCH bfd_arch_s390
3727 #define ELF_TARGET_ID S390_ELF_DATA
3728 #define ELF_MACHINE_CODE EM_S390
3729 #define ELF_MACHINE_ALT1 EM_S390_OLD
3730 #define ELF_MAXPAGESIZE 0x1000
3732 #define elf_backend_size_info s390_elf64_size_info
3734 #define elf_backend_can_gc_sections 1
3735 #define elf_backend_can_refcount 1
3736 #define elf_backend_want_got_plt 1
3737 #define elf_backend_plt_readonly 1
3738 #define elf_backend_want_plt_sym 0
3739 #define elf_backend_got_header_size 24
3740 #define elf_backend_rela_normal 1
3742 #define elf_info_to_howto elf_s390_info_to_howto
3744 #define bfd_elf64_bfd_is_local_label_name elf_s390_is_local_label_name
3745 #define bfd_elf64_bfd_link_hash_table_create elf_s390_link_hash_table_create
3746 #define bfd_elf64_bfd_reloc_type_lookup elf_s390_reloc_type_lookup
3747 #define bfd_elf64_bfd_reloc_name_lookup elf_s390_reloc_name_lookup
3749 #define elf_backend_adjust_dynamic_symbol elf_s390_adjust_dynamic_symbol
3750 #define elf_backend_check_relocs elf_s390_check_relocs
3751 #define elf_backend_copy_indirect_symbol elf_s390_copy_indirect_symbol
3752 #define elf_backend_create_dynamic_sections elf_s390_create_dynamic_sections
3753 #define elf_backend_finish_dynamic_sections elf_s390_finish_dynamic_sections
3754 #define elf_backend_finish_dynamic_symbol elf_s390_finish_dynamic_symbol
3755 #define elf_backend_gc_mark_hook elf_s390_gc_mark_hook
3756 #define elf_backend_gc_sweep_hook elf_s390_gc_sweep_hook
3757 #define elf_backend_reloc_type_class elf_s390_reloc_type_class
3758 #define elf_backend_relocate_section elf_s390_relocate_section
3759 #define elf_backend_size_dynamic_sections elf_s390_size_dynamic_sections
3760 #define elf_backend_init_index_section _bfd_elf_init_1_index_section
3761 #define elf_backend_plt_sym_val elf_s390_plt_sym_val
3762 #define elf_backend_add_symbol_hook elf_s390_add_symbol_hook
3764 #define bfd_elf64_mkobject elf_s390_mkobject
3765 #define elf_backend_object_p elf_s390_object_p
3767 /* Enable ELF64 archive functions. */
3768 #define bfd_elf64_archive_functions
3769 extern bfd_boolean bfd_elf64_archive_slurp_armap (bfd *);
3770 extern bfd_boolean bfd_elf64_archive_write_armap (bfd *, unsigned int, struct orl *, unsigned int, int);
3772 #define bfd_elf64_archive_slurp_extended_name_table _bfd_archive_coff_slurp_extended_name_table
3773 #define bfd_elf64_archive_construct_extended_name_table _bfd_archive_coff_construct_extended_name_table
3774 #define bfd_elf64_archive_truncate_arname _bfd_archive_coff_truncate_arname
3775 #define bfd_elf64_archive_read_ar_hdr _bfd_archive_coff_read_ar_hdr
3776 #define bfd_elf64_archive_write_ar_hdr _bfd_archive_coff_write_ar_hdr
3777 #define bfd_elf64_archive_openr_next_archived_file _bfd_archive_coff_openr_next_archived_file
3778 #define bfd_elf64_archive_get_elt_at_index _bfd_archive_coff_get_elt_at_index
3779 #define bfd_elf64_archive_generic_stat_arch_elt _bfd_archive_coff_generic_stat_arch_elt
3780 #define bfd_elf64_archive_update_armap_timestamp _bfd_archive_coff_update_armap_timestamp
3782 #include "elf64-target.h"