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ld -z combreloc elf_link_sort_relocs
[deliverable/binutils-gdb.git] / bfd / elf32-s390.c
CommitLineData
a85d7ed0 1/* IBM S/390-specific support for 32-bit ELF
6f2750fe 2 Copyright (C) 2000-2016 Free Software Foundation, Inc.
a85d7ed0
NC		 3 Contributed by Carl B. Pedersen and Martin Schwidefsky.
4
5 This file is part of BFD, the Binary File Descriptor library.
6
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
cd123cb7 9 the Free Software Foundation; either version 3 of the License, or
a85d7ed0
NC		 10 (at your option) any later version.
11
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
16
17 You should have received a copy of the GNU General Public License
18 along with this program; if not, write to the Free Software
3e110533 19 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA
53e09e0a 20 02110-1301, USA. */
a85d7ed0 21
a85d7ed0 22#include "sysdep.h"
3db64b00 23#include "bfd.h"
a85d7ed0
NC		 24#include "bfdlink.h"
25#include "libbfd.h"
26#include "elf-bfd.h"
a85d7ed0
NC		 27#include "elf/s390.h"
28
2c3fc389
NC		 29static bfd_reloc_status_type
30s390_tls_reloc (bfd *, arelent *, asymbol *, void *,
31 asection *, bfd *, char **);
32static bfd_reloc_status_type
33s390_elf_ldisp_reloc (bfd *, arelent *, asymbol *, void *,
34 asection *, bfd *, char **);
35
a85d7ed0
NC		 36/* The relocation "howto" table. */
37
38static reloc_howto_type elf_howto_table[] =
39{
40 HOWTO (R_390_NONE, /* type */
41 0, /* rightshift */
6346d5ca 42 3, /* size (0 = byte, 1 = 2 byte, 2 = 4 byte) */
a85d7ed0 43 0, /* bitsize */
b34976b6 44 FALSE, /* pc_relative */
a85d7ed0
NC		 45 0, /* bitpos */
46 complain_overflow_dont, /* complain_on_overflow */
47 bfd_elf_generic_reloc, /* special_function */
48 "R_390_NONE", /* name */
b34976b6 49 FALSE, /* partial_inplace */
a85d7ed0
NC		 50 0, /* src_mask */
51 0, /* dst_mask */
b34976b6
AM		 52 FALSE), /* pcrel_offset */
53
5236c819
MS		 54 HOWTO(R_390_8, 0, 0, 8, FALSE, 0, complain_overflow_bitfield,
55 bfd_elf_generic_reloc, "R_390_8", FALSE, 0,0x000000ff, FALSE),
56 HOWTO(R_390_12, 0, 1, 12, FALSE, 0, complain_overflow_dont,
57 bfd_elf_generic_reloc, "R_390_12", FALSE, 0,0x00000fff, FALSE),
58 HOWTO(R_390_16, 0, 1, 16, FALSE, 0, complain_overflow_bitfield,
59 bfd_elf_generic_reloc, "R_390_16", FALSE, 0,0x0000ffff, FALSE),
60 HOWTO(R_390_32, 0, 2, 32, FALSE, 0, complain_overflow_bitfield,
61 bfd_elf_generic_reloc, "R_390_32", FALSE, 0,0xffffffff, FALSE),
62 HOWTO(R_390_PC32, 0, 2, 32, TRUE, 0, complain_overflow_bitfield,
63 bfd_elf_generic_reloc, "R_390_PC32", FALSE, 0,0xffffffff, TRUE),
15f8604d 64 HOWTO(R_390_GOT12, 0, 1, 12, FALSE, 0, complain_overflow_bitfield,
5236c819
MS		 65 bfd_elf_generic_reloc, "R_390_GOT12", FALSE, 0,0x00000fff, FALSE),
66 HOWTO(R_390_GOT32, 0, 2, 32, FALSE, 0, complain_overflow_bitfield,
67 bfd_elf_generic_reloc, "R_390_GOT32", FALSE, 0,0xffffffff, FALSE),
68 HOWTO(R_390_PLT32, 0, 2, 32, TRUE, 0, complain_overflow_bitfield,
69 bfd_elf_generic_reloc, "R_390_PLT32", FALSE, 0,0xffffffff, TRUE),
70 HOWTO(R_390_COPY, 0, 2, 32, FALSE, 0, complain_overflow_bitfield,
71 bfd_elf_generic_reloc, "R_390_COPY", FALSE, 0,0xffffffff, FALSE),
72 HOWTO(R_390_GLOB_DAT, 0, 2, 32, FALSE, 0, complain_overflow_bitfield,
73 bfd_elf_generic_reloc, "R_390_GLOB_DAT", FALSE, 0,0xffffffff, FALSE),
74 HOWTO(R_390_JMP_SLOT, 0, 2, 32, FALSE, 0, complain_overflow_bitfield,
75 bfd_elf_generic_reloc, "R_390_JMP_SLOT", FALSE, 0,0xffffffff, FALSE),
76 HOWTO(R_390_RELATIVE, 0, 2, 32, TRUE, 0, complain_overflow_bitfield,
77 bfd_elf_generic_reloc, "R_390_RELATIVE", FALSE, 0,0xffffffff, FALSE),
78 HOWTO(R_390_GOTOFF32, 0, 2, 32, FALSE, 0, complain_overflow_bitfield,
79 bfd_elf_generic_reloc, "R_390_GOTOFF32", FALSE, 0,0xffffffff, FALSE),
80 HOWTO(R_390_GOTPC, 0, 2, 32, TRUE, 0, complain_overflow_bitfield,
81 bfd_elf_generic_reloc, "R_390_GOTPC", FALSE, 0,0xffffffff, TRUE),
82 HOWTO(R_390_GOT16, 0, 1, 16, FALSE, 0, complain_overflow_bitfield,
83 bfd_elf_generic_reloc, "R_390_GOT16", FALSE, 0,0x0000ffff, FALSE),
84 HOWTO(R_390_PC16, 0, 1, 16, TRUE, 0, complain_overflow_bitfield,
85 bfd_elf_generic_reloc, "R_390_PC16", FALSE, 0,0x0000ffff, TRUE),
86 HOWTO(R_390_PC16DBL, 1, 1, 16, TRUE, 0, complain_overflow_bitfield,
87 bfd_elf_generic_reloc, "R_390_PC16DBL", FALSE, 0,0x0000ffff, TRUE),
88 HOWTO(R_390_PLT16DBL, 1, 1, 16, TRUE, 0, complain_overflow_bitfield,
89 bfd_elf_generic_reloc, "R_390_PLT16DBL", FALSE, 0,0x0000ffff, TRUE),
90 HOWTO(R_390_PC32DBL, 1, 2, 32, TRUE, 0, complain_overflow_bitfield,
91 bfd_elf_generic_reloc, "R_390_PC32DBL", FALSE, 0,0xffffffff, TRUE),
92 HOWTO(R_390_PLT32DBL, 1, 2, 32, TRUE, 0, complain_overflow_bitfield,
93 bfd_elf_generic_reloc, "R_390_PLT32DBL", FALSE, 0,0xffffffff, TRUE),
94 HOWTO(R_390_GOTPCDBL, 1, 2, 32, TRUE, 0, complain_overflow_bitfield,
95 bfd_elf_generic_reloc, "R_390_GOTPCDBL", FALSE, 0,0xffffffff, TRUE),
96 EMPTY_HOWTO (R_390_64), /* Empty entry for R_390_64. */
97 EMPTY_HOWTO (R_390_PC64), /* Empty entry for R_390_PC64. */
98 EMPTY_HOWTO (R_390_GOT64), /* Empty entry for R_390_GOT64. */
99 EMPTY_HOWTO (R_390_PLT64), /* Empty entry for R_390_PLT64. */
100 HOWTO(R_390_GOTENT, 1, 2, 32, TRUE, 0, complain_overflow_bitfield,
101 bfd_elf_generic_reloc, "R_390_GOTENT", FALSE, 0,0xffffffff, TRUE),
102 HOWTO(R_390_GOTOFF16, 0, 1, 16, FALSE, 0, complain_overflow_bitfield,
103 bfd_elf_generic_reloc, "R_390_GOTOFF16", FALSE, 0,0x0000ffff, FALSE),
104 EMPTY_HOWTO (R_390_GOTOFF64), /* Empty entry for R_390_GOTOFF64. */
105 HOWTO(R_390_GOTPLT12, 0, 1, 12, FALSE, 0, complain_overflow_dont,
106 bfd_elf_generic_reloc, "R_390_GOTPLT12", FALSE, 0,0x00000fff, FALSE),
107 HOWTO(R_390_GOTPLT16, 0, 1, 16, FALSE, 0, complain_overflow_bitfield,
108 bfd_elf_generic_reloc, "R_390_GOTPLT16", FALSE, 0,0x0000ffff, FALSE),
109 HOWTO(R_390_GOTPLT32, 0, 2, 32, FALSE, 0, complain_overflow_bitfield,
110 bfd_elf_generic_reloc, "R_390_GOTPLT32", FALSE, 0,0xffffffff, FALSE),
111 EMPTY_HOWTO (R_390_GOTPLT64), /* Empty entry for R_390_GOTPLT64. */
112 HOWTO(R_390_GOTPLTENT, 1, 2, 32, TRUE, 0, complain_overflow_bitfield,
113 bfd_elf_generic_reloc, "R_390_GOTPLTENT",FALSE, 0,0xffffffff, TRUE),
114 HOWTO(R_390_PLTOFF16, 0, 1, 16, FALSE, 0, complain_overflow_bitfield,
115 bfd_elf_generic_reloc, "R_390_PLTOFF16", FALSE, 0,0x0000ffff, FALSE),
116 HOWTO(R_390_PLTOFF32, 0, 2, 32, FALSE, 0, complain_overflow_bitfield,
117 bfd_elf_generic_reloc, "R_390_PLTOFF32", FALSE, 0,0xffffffff, FALSE),
118 EMPTY_HOWTO (R_390_PLTOFF64), /* Empty entry for R_390_PLTOFF64. */
69fc87f1
MS		 119 HOWTO(R_390_TLS_LOAD, 0, 0, 0, FALSE, 0, complain_overflow_dont,
120 s390_tls_reloc, "R_390_TLS_LOAD", FALSE, 0, 0, FALSE),
121 HOWTO(R_390_TLS_GDCALL, 0, 0, 0, FALSE, 0, complain_overflow_dont,
122 s390_tls_reloc, "R_390_TLS_GDCALL", FALSE, 0, 0, FALSE),
123 HOWTO(R_390_TLS_LDCALL, 0, 0, 0, FALSE, 0, complain_overflow_dont,
124 s390_tls_reloc, "R_390_TLS_LDCALL", FALSE, 0, 0, FALSE),
125 HOWTO(R_390_TLS_GD32, 0, 2, 32, FALSE, 0, complain_overflow_bitfield,
126 bfd_elf_generic_reloc, "R_390_TLS_GD32", FALSE, 0, 0xffffffff, FALSE),
127 EMPTY_HOWTO (R_390_TLS_GD64), /* Empty entry for R_390_TLS_GD64. */
128 HOWTO(R_390_TLS_GOTIE12, 0, 1, 12, FALSE, 0, complain_overflow_dont,
129 bfd_elf_generic_reloc, "R_390_TLS_GOTIE12", FALSE, 0, 0x00000fff, FALSE),
130 HOWTO(R_390_TLS_GOTIE32, 0, 2, 32, FALSE, 0, complain_overflow_bitfield,
131 bfd_elf_generic_reloc, "R_390_TLS_GOTIE32", FALSE, 0, 0xffffffff, FALSE),
132 EMPTY_HOWTO (R_390_TLS_GOTIE64), /* Empty entry for R_390_TLS_GOTIE64. */
133 HOWTO(R_390_TLS_LDM32, 0, 2, 32, FALSE, 0, complain_overflow_bitfield,
134 bfd_elf_generic_reloc, "R_390_TLS_LDM32", FALSE, 0, 0xffffffff, FALSE),
135 EMPTY_HOWTO (R_390_TLS_LDM64), /* Empty entry for R_390_TLS_LDM64. */
136 HOWTO(R_390_TLS_IE32, 0, 2, 32, FALSE, 0, complain_overflow_bitfield,
137 bfd_elf_generic_reloc, "R_390_TLS_IE32", FALSE, 0, 0xffffffff, FALSE),
138 EMPTY_HOWTO (R_390_TLS_IE64), /* Empty entry for R_390_TLS_IE64. */
139 HOWTO(R_390_TLS_IEENT, 1, 2, 32, TRUE, 0, complain_overflow_bitfield,
140 bfd_elf_generic_reloc, "R_390_TLS_IEENT", FALSE, 0, 0xffffffff, TRUE),
141 HOWTO(R_390_TLS_LE32, 0, 2, 32, FALSE, 0, complain_overflow_bitfield,
142 bfd_elf_generic_reloc, "R_390_TLS_LE32", FALSE, 0, 0xffffffff, FALSE),
143 EMPTY_HOWTO (R_390_TLS_LE64), /* Empty entry for R_390_TLS_LE64. */
144 HOWTO(R_390_TLS_LDO32, 0, 2, 32, FALSE, 0, complain_overflow_bitfield,
145 bfd_elf_generic_reloc, "R_390_TLS_LDO32", FALSE, 0, 0xffffffff, FALSE),
146 EMPTY_HOWTO (R_390_TLS_LDO64), /* Empty entry for R_390_TLS_LDO64. */
147 HOWTO(R_390_TLS_DTPMOD, 0, 2, 32, FALSE, 0, complain_overflow_bitfield,
148 bfd_elf_generic_reloc, "R_390_TLS_DTPMOD", FALSE, 0, 0xffffffff, FALSE),
149 HOWTO(R_390_TLS_DTPOFF, 0, 2, 32, FALSE, 0, complain_overflow_bitfield,
150 bfd_elf_generic_reloc, "R_390_TLS_DTPOFF", FALSE, 0, 0xffffffff, FALSE),
151 HOWTO(R_390_TLS_TPOFF, 0, 2, 32, FALSE, 0, complain_overflow_bitfield,
152 bfd_elf_generic_reloc, "R_390_TLS_TPOFF", FALSE, 0, 0xffffffff, FALSE),
bd1ea41b
MS		 153 HOWTO(R_390_20, 0, 2, 20, FALSE, 8, complain_overflow_dont,
154 s390_elf_ldisp_reloc, "R_390_20", FALSE, 0,0x0fffff00, FALSE),
155 HOWTO(R_390_GOT20, 0, 2, 20, FALSE, 8, complain_overflow_dont,
156 s390_elf_ldisp_reloc, "R_390_GOT20", FALSE, 0,0x0fffff00, FALSE),
157 HOWTO(R_390_GOTPLT20, 0, 2, 20, FALSE, 8, complain_overflow_dont,
158 s390_elf_ldisp_reloc, "R_390_GOTPLT20", FALSE, 0,0x0fffff00, FALSE),
159 HOWTO(R_390_TLS_GOTIE20, 0, 2, 20, FALSE, 8, complain_overflow_dont,
160 s390_elf_ldisp_reloc, "R_390_TLS_GOTIE20", FALSE, 0,0x0fffff00, FALSE),
470b557a
AK		 161 HOWTO(R_390_IRELATIVE, 0, 2, 32, TRUE, 0, complain_overflow_bitfield,
162 bfd_elf_generic_reloc, "R_390_IRELATIVE", FALSE, 0, 0xffffffff, FALSE),
fb798c50
AK		 163 HOWTO(R_390_PC12DBL, 1, 1, 12, TRUE, 0, complain_overflow_bitfield,
164 bfd_elf_generic_reloc, "R_390_PC12DBL", FALSE, 0,0x00000fff, TRUE),
165 HOWTO(R_390_PLT12DBL, 1, 1, 12, TRUE, 0, complain_overflow_bitfield,
166 bfd_elf_generic_reloc, "R_390_PLT12DBL", FALSE, 0,0x00000fff, TRUE),
167 HOWTO(R_390_PC24DBL, 1, 2, 24, TRUE, 0, complain_overflow_bitfield,
168 bfd_elf_generic_reloc, "R_390_PC24DBL", FALSE, 0,0x00ffffff, TRUE),
169 HOWTO(R_390_PLT24DBL, 1, 2, 24, TRUE, 0, complain_overflow_bitfield,
170 bfd_elf_generic_reloc, "R_390_PLT24DBL", FALSE, 0,0x00ffffff, TRUE),
a85d7ed0
NC		 171};
172
173/* GNU extension to record C++ vtable hierarchy. */
174static reloc_howto_type elf32_s390_vtinherit_howto =
b34976b6 175 HOWTO (R_390_GNU_VTINHERIT, 0,2,0,FALSE,0,complain_overflow_dont, NULL, "R_390_GNU_VTINHERIT", FALSE,0, 0, FALSE);
a85d7ed0 176static reloc_howto_type elf32_s390_vtentry_howto =
b34976b6 177 HOWTO (R_390_GNU_VTENTRY, 0,2,0,FALSE,0,complain_overflow_dont, _bfd_elf_rel_vtable_reloc_fn,"R_390_GNU_VTENTRY", FALSE,0,0, FALSE);
a85d7ed0
NC		 178
179static reloc_howto_type *
2c3fc389
NC		 180elf_s390_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED,
181 bfd_reloc_code_real_type code)
a85d7ed0 182{
ec338859 183 switch (code)
0451c93c
MS		 184 {
185 case BFD_RELOC_NONE:
186 return &elf_howto_table[(int) R_390_NONE];
187 case BFD_RELOC_8:
188 return &elf_howto_table[(int) R_390_8];
189 case BFD_RELOC_390_12:
190 return &elf_howto_table[(int) R_390_12];
191 case BFD_RELOC_16:
192 return &elf_howto_table[(int) R_390_16];
193 case BFD_RELOC_32:
194 return &elf_howto_table[(int) R_390_32];
195 case BFD_RELOC_CTOR:
196 return &elf_howto_table[(int) R_390_32];
197 case BFD_RELOC_32_PCREL:
198 return &elf_howto_table[(int) R_390_PC32];
199 case BFD_RELOC_390_GOT12:
200 return &elf_howto_table[(int) R_390_GOT12];
201 case BFD_RELOC_32_GOT_PCREL:
202 return &elf_howto_table[(int) R_390_GOT32];
203 case BFD_RELOC_390_PLT32:
204 return &elf_howto_table[(int) R_390_PLT32];
205 case BFD_RELOC_390_COPY:
206 return &elf_howto_table[(int) R_390_COPY];
207 case BFD_RELOC_390_GLOB_DAT:
208 return &elf_howto_table[(int) R_390_GLOB_DAT];
209 case BFD_RELOC_390_JMP_SLOT:
210 return &elf_howto_table[(int) R_390_JMP_SLOT];
211 case BFD_RELOC_390_RELATIVE:
212 return &elf_howto_table[(int) R_390_RELATIVE];
213 case BFD_RELOC_32_GOTOFF:
5236c819 214 return &elf_howto_table[(int) R_390_GOTOFF32];
0451c93c
MS		 215 case BFD_RELOC_390_GOTPC:
216 return &elf_howto_table[(int) R_390_GOTPC];
217 case BFD_RELOC_390_GOT16:
218 return &elf_howto_table[(int) R_390_GOT16];
219 case BFD_RELOC_16_PCREL:
220 return &elf_howto_table[(int) R_390_PC16];
fb798c50
AK		 221 case BFD_RELOC_390_PC12DBL:
222 return &elf_howto_table[(int) R_390_PC12DBL];
223 case BFD_RELOC_390_PLT12DBL:
224 return &elf_howto_table[(int) R_390_PLT12DBL];
0451c93c
MS		 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];
fb798c50
AK		 229 case BFD_RELOC_390_PC24DBL:
230 return &elf_howto_table[(int) R_390_PC24DBL];
231 case BFD_RELOC_390_PLT24DBL:
232 return &elf_howto_table[(int) R_390_PLT24DBL];
befc3abb
MS		 233 case BFD_RELOC_390_PC32DBL:
234 return &elf_howto_table[(int) R_390_PC32DBL];
235 case BFD_RELOC_390_PLT32DBL:
236 return &elf_howto_table[(int) R_390_PLT32DBL];
237 case BFD_RELOC_390_GOTPCDBL:
238 return &elf_howto_table[(int) R_390_GOTPCDBL];
239 case BFD_RELOC_390_GOTENT:
240 return &elf_howto_table[(int) R_390_GOTENT];
5236c819
MS		 241 case BFD_RELOC_16_GOTOFF:
242 return &elf_howto_table[(int) R_390_GOTOFF16];
243 case BFD_RELOC_390_GOTPLT12:
244 return &elf_howto_table[(int) R_390_GOTPLT12];
245 case BFD_RELOC_390_GOTPLT16:
246 return &elf_howto_table[(int) R_390_GOTPLT16];
247 case BFD_RELOC_390_GOTPLT32:
248 return &elf_howto_table[(int) R_390_GOTPLT32];
249 case BFD_RELOC_390_GOTPLTENT:
250 return &elf_howto_table[(int) R_390_GOTPLTENT];
251 case BFD_RELOC_390_PLTOFF16:
252 return &elf_howto_table[(int) R_390_PLTOFF16];
253 case BFD_RELOC_390_PLTOFF32:
254 return &elf_howto_table[(int) R_390_PLTOFF32];
69fc87f1
MS		 255 case BFD_RELOC_390_TLS_LOAD:
256 return &elf_howto_table[(int) R_390_TLS_LOAD];
257 case BFD_RELOC_390_TLS_GDCALL:
258 return &elf_howto_table[(int) R_390_TLS_GDCALL];
259 case BFD_RELOC_390_TLS_LDCALL:
260 return &elf_howto_table[(int) R_390_TLS_LDCALL];
261 case BFD_RELOC_390_TLS_GD32:
262 return &elf_howto_table[(int) R_390_TLS_GD32];
263 case BFD_RELOC_390_TLS_GOTIE12:
264 return &elf_howto_table[(int) R_390_TLS_GOTIE12];
265 case BFD_RELOC_390_TLS_GOTIE32:
266 return &elf_howto_table[(int) R_390_TLS_GOTIE32];
267 case BFD_RELOC_390_TLS_LDM32:
268 return &elf_howto_table[(int) R_390_TLS_LDM32];
269 case BFD_RELOC_390_TLS_IE32:
270 return &elf_howto_table[(int) R_390_TLS_IE32];
271 case BFD_RELOC_390_TLS_IEENT:
272 return &elf_howto_table[(int) R_390_TLS_IEENT];
273 case BFD_RELOC_390_TLS_LE32:
274 return &elf_howto_table[(int) R_390_TLS_LE32];
275 case BFD_RELOC_390_TLS_LDO32:
276 return &elf_howto_table[(int) R_390_TLS_LDO32];
277 case BFD_RELOC_390_TLS_DTPMOD:
278 return &elf_howto_table[(int) R_390_TLS_DTPMOD];
279 case BFD_RELOC_390_TLS_DTPOFF:
280 return &elf_howto_table[(int) R_390_TLS_DTPOFF];
281 case BFD_RELOC_390_TLS_TPOFF:
282 return &elf_howto_table[(int) R_390_TLS_TPOFF];
bd1ea41b
MS		 283 case BFD_RELOC_390_20:
284 return &elf_howto_table[(int) R_390_20];
285 case BFD_RELOC_390_GOT20:
286 return &elf_howto_table[(int) R_390_GOT20];
287 case BFD_RELOC_390_GOTPLT20:
288 return &elf_howto_table[(int) R_390_GOTPLT20];
289 case BFD_RELOC_390_TLS_GOTIE20:
290 return &elf_howto_table[(int) R_390_TLS_GOTIE20];
470b557a
AK		 291 case BFD_RELOC_390_IRELATIVE:
292 return &elf_howto_table[(int) R_390_IRELATIVE];
0451c93c
MS		 293 case BFD_RELOC_VTABLE_INHERIT:
294 return &elf32_s390_vtinherit_howto;
295 case BFD_RELOC_VTABLE_ENTRY:
296 return &elf32_s390_vtentry_howto;
297 default:
298 break;
299 }
a85d7ed0
NC		 300 return 0;
301}
302
157090f7
AM		 303static reloc_howto_type *
304elf_s390_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
305 const char *r_name)
306{
307 unsigned int i;
308
309 for (i = 0; i < sizeof (elf_howto_table) / sizeof (elf_howto_table[0]); i++)
310 if (elf_howto_table[i].name != NULL
311 && strcasecmp (elf_howto_table[i].name, r_name) == 0)
312 return &elf_howto_table[i];
313
314 if (strcasecmp (elf32_s390_vtinherit_howto.name, r_name) == 0)
315 return &elf32_s390_vtinherit_howto;
316 if (strcasecmp (elf32_s390_vtentry_howto.name, r_name) == 0)
317 return &elf32_s390_vtentry_howto;
318
319 return NULL;
320}
321
a85d7ed0
NC		 322/* We need to use ELF32_R_TYPE so we have our own copy of this function,
323 and elf32-s390.c has its own copy. */
324
325static void
2c3fc389
NC		 326elf_s390_info_to_howto (bfd *abfd ATTRIBUTE_UNUSED,
327 arelent *cache_ptr,
328 Elf_Internal_Rela *dst)
a85d7ed0 329{
d0fb9a8d
JJ		 330 unsigned int r_type = ELF32_R_TYPE(dst->r_info);
331 switch (r_type)
a85d7ed0
NC		 332 {
333 case R_390_GNU_VTINHERIT:
334 cache_ptr->howto = &elf32_s390_vtinherit_howto;
335 break;
336
337 case R_390_GNU_VTENTRY:
338 cache_ptr->howto = &elf32_s390_vtentry_howto;
339 break;
340
341 default:
d0fb9a8d
JJ		 342 if (r_type >= sizeof (elf_howto_table) / sizeof (elf_howto_table[0]))
343 {
344 (*_bfd_error_handler) (_("%B: invalid relocation type %d"),
345 abfd, (int) r_type);
346 r_type = R_390_NONE;
347 }
348 cache_ptr->howto = &elf_howto_table[r_type];
dc810e39 349 }
a85d7ed0
NC		 350}
351
69fc87f1
MS		 352/* A relocation function which doesn't do anything. */
353static bfd_reloc_status_type
2c3fc389
NC		 354s390_tls_reloc (bfd *abfd ATTRIBUTE_UNUSED,
355 arelent *reloc_entry,
356 asymbol *symbol ATTRIBUTE_UNUSED,
357 void * data ATTRIBUTE_UNUSED,
358 asection *input_section,
359 bfd *output_bfd,
360 char **error_message ATTRIBUTE_UNUSED)
69fc87f1
MS		 361{
362 if (output_bfd)
363 reloc_entry->address += input_section->output_offset;
364 return bfd_reloc_ok;
365}
366
bd1ea41b
MS		 367/* Handle the large displacement relocs. */
368static bfd_reloc_status_type
2c3fc389
NC		 369s390_elf_ldisp_reloc (bfd *abfd ATTRIBUTE_UNUSED,
370 arelent *reloc_entry,
371 asymbol *symbol,
372 void * data ATTRIBUTE_UNUSED,
373 asection *input_section,
374 bfd *output_bfd,
375 char **error_message ATTRIBUTE_UNUSED)
bd1ea41b
MS		 376{
377 reloc_howto_type *howto = reloc_entry->howto;
378 bfd_vma relocation;
379 bfd_vma insn;
68ffbac6 380
bd1ea41b
MS		 381 if (output_bfd != (bfd *) NULL
382 && (symbol->flags & BSF_SECTION_SYM) == 0
383 && (! howto->partial_inplace
384 || reloc_entry->addend == 0))
385 {
386 reloc_entry->address += input_section->output_offset;
387 return bfd_reloc_ok;
388 }
68ffbac6 389
bd1ea41b
MS		 390 if (output_bfd != NULL)
391 return bfd_reloc_continue;
68ffbac6 392
07515404 393 if (reloc_entry->address > bfd_get_section_limit (abfd, input_section))
bd1ea41b 394 return bfd_reloc_outofrange;
68ffbac6 395
bd1ea41b
MS		 396 relocation = (symbol->value
397 + symbol->section->output_section->vma
398 + symbol->section->output_offset);
399 relocation += reloc_entry->addend;
400 if (howto->pc_relative)
401 {
402 relocation -= (input_section->output_section->vma
403 + input_section->output_offset);
404 relocation -= reloc_entry->address;
405 }
68ffbac6 406
bd1ea41b
MS		 407 insn = bfd_get_32 (abfd, (bfd_byte *) data + reloc_entry->address);
408 insn |= (relocation & 0xfff) << 16 | (relocation & 0xff000) >> 4;
409 bfd_put_32 (abfd, insn, (bfd_byte *) data + reloc_entry->address);
68ffbac6 410
bd1ea41b
MS		 411 if ((bfd_signed_vma) relocation < - 0x80000
412 || (bfd_signed_vma) relocation > 0x7ffff)
413 return bfd_reloc_overflow;
414 else
415 return bfd_reloc_ok;
416}
417
b34976b6 418static bfd_boolean
2c3fc389 419elf_s390_is_local_label_name (bfd *abfd, const char *name)
a85d7ed0
NC		 420{
421 if (name[0] == '.' && (name[1] == 'X' || name[1] == 'L'))
b34976b6 422 return TRUE;
a85d7ed0
NC		 423
424 return _bfd_elf_is_local_label_name (abfd, name);
425}
426
427/* Functions for the 390 ELF linker. */
428
429/* The name of the dynamic interpreter. This is put in the .interp
430 section. */
431
87049b0d 432#define ELF_DYNAMIC_INTERPRETER "/lib/ld.so.1"
a85d7ed0 433
64285810
MS		 434/* If ELIMINATE_COPY_RELOCS is non-zero, the linker will try to avoid
435 copying dynamic variables from a shared lib into an app's dynbss
436 section, and instead use a dynamic relocation to point into the
437 shared lib. */
438#define ELIMINATE_COPY_RELOCS 1
439
a85d7ed0
NC		 440/* The size in bytes of the first entry in the procedure linkage table. */
441#define PLT_FIRST_ENTRY_SIZE 32
442/* The size in bytes of an entry in the procedure linkage table. */
dc810e39 443#define PLT_ENTRY_SIZE 32
a85d7ed0
NC		 444
445#define GOT_ENTRY_SIZE 4
446
470b557a
AK		 447#define RELA_ENTRY_SIZE sizeof (Elf32_External_Rela)
448
a85d7ed0
NC		 449/* The first three entries in a procedure linkage table are reserved,
450 and the initial contents are unimportant (we zero them out).
451 Subsequent entries look like this. See the SVR4 ABI 386
452 supplement to see how this works. */
453
454/* For the s390, simple addr offset can only be 0 - 4096.
455 To use the full 2 GB address space, several instructions
456 are needed to load an address in a register and execute
457 a branch( or just saving the address)
458
dc810e39 459 Furthermore, only r 0 and 1 are free to use!!! */
a85d7ed0
NC		 460
461/* The first 3 words in the GOT are then reserved.
462 Word 0 is the address of the dynamic table.
463 Word 1 is a pointer to a structure describing the object
464 Word 2 is used to point to the loader entry address.
465
4cc11e76 466 The code for position independent PLT entries looks like this:
a85d7ed0
NC		 467
468 r12 holds addr of the current GOT at entry to the PLT
469
470 The GOT holds the address in the PLT to be executed.
471 The loader then gets:
472 24(15) = Pointer to the structure describing the object.
a7e28bbe 473 28(15) = Offset into rela.plt
a85d7ed0
NC		 474
475 The loader must then find the module where the function is
476 and insert the address in the GOT.
477
478 Note: 390 can only address +- 64 K relative.
479 We check if offset > 65536, then make a relative branch -64xxx
480 back to a previous defined branch
481
482PLT1: BASR 1,0 # 2 bytes
483 L 1,22(1) # 4 bytes Load offset in GOT in r 1
484 L 1,(1,12) # 4 bytes Load address from GOT in r1
485 BCR 15,1 # 2 bytes Jump to address
486RET1: BASR 1,0 # 2 bytes Return from GOT 1st time
487 L 1,14(1) # 4 bytes Load offset in symol table in r1
488 BRC 15,-x # 4 bytes Jump to start of PLT
489 .word 0 # 2 bytes filler
490 .long ? # 4 bytes offset in GOT
a7e28bbe 491 .long ? # 4 bytes offset into rela.plt
a85d7ed0
NC		 492
493 This was the general case. There are two additional, optimizes PLT
494 definitions. One for GOT offsets < 4096 and one for GOT offsets < 32768.
495 First the one for GOT offsets < 4096:
496
497PLT1: L 1,<offset>(12) # 4 bytes Load address from GOT in R1
498 BCR 15,1 # 2 bytes Jump to address
499 .word 0,0,0 # 6 bytes filler
500RET1: BASR 1,0 # 2 bytes Return from GOT 1st time
a7e28bbe 501 L 1,14(1) # 4 bytes Load offset in rela.plt in r1
a85d7ed0
NC		 502 BRC 15,-x # 4 bytes Jump to start of PLT
503 .word 0,0,0 # 6 bytes filler
a7e28bbe 504 .long ? # 4 bytes offset into rela.plt
a85d7ed0
NC		 505
506 Second the one for GOT offsets < 32768:
507
508PLT1: LHI 1,<offset> # 4 bytes Load offset in GOT to r1
509 L 1,(1,12) # 4 bytes Load address from GOT to r1
510 BCR 15,1 # 2 bytes Jump to address
511 .word 0 # 2 bytes filler
512RET1: BASR 1,0 # 2 bytes Return from GOT 1st time
a7e28bbe 513 L 1,14(1) # 4 bytes Load offset in rela.plt in r1
a85d7ed0
NC		 514 BRC 15,-x # 4 bytes Jump to start of PLT
515 .word 0,0,0 # 6 bytes filler
a7e28bbe 516 .long ? # 4 bytes offset into rela.plt
a85d7ed0
NC		 517
518Total = 32 bytes per PLT entry
519
520 The code for static build PLT entries looks like this:
521
522PLT1: BASR 1,0 # 2 bytes
523 L 1,22(1) # 4 bytes Load address of GOT entry
524 L 1,0(0,1) # 4 bytes Load address from GOT in r1
525 BCR 15,1 # 2 bytes Jump to address
526RET1: BASR 1,0 # 2 bytes Return from GOT 1st time
527 L 1,14(1) # 4 bytes Load offset in symbol table in r1
528 BRC 15,-x # 4 bytes Jump to start of PLT
529 .word 0 # 2 bytes filler
530 .long ? # 4 bytes address of GOT entry
a7e28bbe 531 .long ? # 4 bytes offset into rela.plt */
a85d7ed0 532
9aa17453
AK		 533static const bfd_byte elf_s390_plt_entry[PLT_ENTRY_SIZE] =
534 {
535 0x0d, 0x10, /* basr %r1,%r0 */
536 0x58, 0x10, 0x10, 0x16, /* l %r1,22(%r1) */
537 0x58, 0x10, 0x10, 0x00, /* l %r1,0(%r1) */
538 0x07, 0xf1, /* br %r1 */
539 0x0d, 0x10, /* basr %r1,%r0 */
540 0x58, 0x10, 0x10, 0x0e, /* l %r1,14(%r1) */
541 0xa7, 0xf4, 0x00, 0x00, /* j first plt */
542 0x00, 0x00, /* padding */
543 0x00, 0x00, 0x00, 0x00, /* GOT offset */
544 0x00, 0x00, 0x00, 0x00 /* rela.plt offset */
545 };
546
547/* Generic PLT pic entry. */
548static const bfd_byte elf_s390_plt_pic_entry[PLT_ENTRY_SIZE] =
549 {
550 0x0d, 0x10, /* basr %r1,%r0 */
551 0x58, 0x10, 0x10, 0x16, /* l %r1,22(%r1) */
552 0x58, 0x11, 0xc0, 0x00, /* l %r1,0(%r1,%r12) */
553 0x07, 0xf1, /* br %r1 */
554 0x0d, 0x10, /* basr %r1,%r0 */
555 0x58, 0x10, 0x10, 0x0e, /* l %r1,14(%r1) */
556 0xa7, 0xf4, 0x00, 0x00, /* j first plt */
557 0x00, 0x00, /* padding */
558 0x00, 0x00, 0x00, 0x00, /* GOT offset */
559 0x00, 0x00, 0x00, 0x00 /* rela.plt offset */
560 };
561
562/* Optimized PLT pic entry for GOT offset < 4k. xx will be replaced
563 when generating the PLT slot with the GOT offset. */
564static const bfd_byte elf_s390_plt_pic12_entry[PLT_ENTRY_SIZE] =
565 {
566 0x58, 0x10, 0xc0, 0x00, /* l %r1,xx(%r12) */
567 0x07, 0xf1, /* br %r1 */
568 0x00, 0x00, 0x00, 0x00, /* padding */
569 0x00, 0x00,
570 0x0d, 0x10, /* basr %r1,%r0 */
571 0x58, 0x10, 0x10, 0x0e, /* l %r1,14(%r1) */
572 0xa7, 0xf4, 0x00, 0x00, /* j first plt */
573 0x00, 0x00, 0x00, 0x00,
574 0x00, 0x00, 0x00, 0x00
575 };
576
577/* Optimized PLT pic entry for GOT offset < 32k. xx will be replaced
578 when generating the PLT slot with the GOT offset. */
579static const bfd_byte elf_s390_plt_pic16_entry[PLT_ENTRY_SIZE] =
580 {
581 0xa7, 0x18, 0x00, 0x00, /* lhi %r1,xx */
582 0x58, 0x11, 0xc0, 0x00, /* l %r1,0(%r1,%r12) */
583 0x07, 0xf1, /* br %r1 */
584 0x00, 0x00,
585 0x0d, 0x10, /* basr %r1,%r0 */
586 0x58, 0x10, 0x10, 0x0e, /* l %r1,14(%r1) */
587 0xa7, 0xf4, 0x00, 0x00, /* j first plt */
588 0x00, 0x00, 0x00, 0x00,
589 0x00, 0x00, 0x00, 0x00,
590 0x00, 0x00
591 };
a85d7ed0 592
a7e28bbe 593/* The first PLT entry pushes the offset into the rela.plt
a85d7ed0
NC		 594 from R1 onto the stack at 8(15) and the loader object info
595 at 12(15), loads the loader address in R1 and jumps to it. */
596
597/* The first entry in the PLT for PIC code:
598
599PLT0:
a7e28bbe 600 ST 1,28(15) # R1 has offset into rela.plt
a85d7ed0 601 L 1,4(12) # Get loader ino(object struct address)
dc810e39 602 ST 1,24(15) # Store address
a85d7ed0
NC		 603 L 1,8(12) # Entry address of loader in R1
604 BR 1 # Jump to loader
605
606 The first entry in the PLT for static code:
607
608PLT0:
a7e28bbe 609 ST 1,28(15) # R1 has offset into rela.plt
a85d7ed0
NC		 610 BASR 1,0
611 L 1,18(0,1) # Get address of GOT
612 MVC 24(4,15),4(1) # Move loader ino to stack
613 L 1,8(1) # Get address of loader
614 BR 1 # Jump to loader
615 .word 0 # filler
616 .long got # address of GOT */
617
9aa17453
AK		 618static const bfd_byte elf_s390_plt_first_entry[PLT_FIRST_ENTRY_SIZE] =
619 {
620 0x50, 0x10, 0xf0, 0x1c, /* st %r1,28(%r15) */
621 0x0d, 0x10, /* basr %r1,%r0 */
622 0x58, 0x10, 0x10, 0x12, /* l %r1,18(%r1) */
623 0xd2, 0x03, 0xf0, 0x18, 0x10, 0x04, /* mvc 24(4,%r15),4(%r1) */
624 0x58, 0x10, 0x10, 0x08, /* l %r1,8(%r1) */
625 0x07, 0xf1, /* br %r1 */
626 0x00, 0x00, 0x00, 0x00,
627 0x00, 0x00, 0x00, 0x00,
628 0x00, 0x00
629 };
630
631static const bfd_byte elf_s390_plt_pic_first_entry[PLT_FIRST_ENTRY_SIZE] =
632 {
633 0x50, 0x10, 0xf0, 0x1c, /* st %r1,28(%r15) */
634 0x58, 0x10, 0xc0, 0x04, /* l %r1,4(%r12) */
635 0x50, 0x10, 0xf0, 0x18, /* st %r1,24(%r15) */
636 0x58, 0x10, 0xc0, 0x08, /* l %r1,8(%r12) */
637 0x07, 0xf1, /* br %r1 */
638 0x00, 0x00, 0x00, 0x00,
639 0x00, 0x00, 0x00, 0x00,
640 0x00, 0x00, 0x00, 0x00,
641 0x00, 0x00
642 };
a85d7ed0 643
a85d7ed0
NC		 644
645/* s390 ELF linker hash entry. */
646
647struct elf_s390_link_hash_entry
648{
0451c93c 649 struct elf_link_hash_entry elf;
a85d7ed0 650
0451c93c 651 /* Track dynamic relocs copied for this symbol. */
00d8c7a9 652 struct elf_dyn_relocs *dyn_relocs;
5236c819
MS		 653
654 /* Number of GOTPLT references for a function. */
655 bfd_signed_vma gotplt_refcount;
69fc87f1
MS		 656
657#define GOT_UNKNOWN 0
658#define GOT_NORMAL 1
659#define GOT_TLS_GD 2
660#define GOT_TLS_IE 3
661#define GOT_TLS_IE_NLT 4
662 unsigned char tls_type;
470b557a
AK		 663
664 /* For pointer equality reasons we might need to change the symbol
665 type from STT_GNU_IFUNC to STT_FUNC together with its value and
666 section entry. So after alloc_dynrelocs only these values should
667 be used. In order to check whether a symbol is IFUNC use
668 s390_is_ifunc_symbol_p. */
669 bfd_vma ifunc_resolver_address;
670 asection *ifunc_resolver_section;
a85d7ed0
NC		 671};
672
69fc87f1
MS		 673#define elf_s390_hash_entry(ent) \
674 ((struct elf_s390_link_hash_entry *)(ent))
675
470b557a
AK		 676/* This structure represents an entry in the local PLT list needed for
677 local IFUNC symbols. */
678struct plt_entry
679{
680 /* The section of the local symbol.
681 Set in relocate_section and used in finish_dynamic_sections. */
682 asection *sec;
683
684 union
685 {
686 bfd_signed_vma refcount;
687 bfd_vma offset;
688 } plt;
689};
690
0ffa91dd
NC		 691/* NOTE: Keep this structure in sync with
692 the one declared in elf64-s390.c. */
69fc87f1
MS		 693struct elf_s390_obj_tdata
694{
695 struct elf_obj_tdata root;
696
470b557a
AK		 697 /* A local PLT is needed for ifunc symbols. */
698 struct plt_entry *local_plt;
699
0ffa91dd 700 /* TLS type for each local got entry. */
69fc87f1
MS		 701 char *local_got_tls_type;
702};
703
704#define elf_s390_tdata(abfd) \
705 ((struct elf_s390_obj_tdata *) (abfd)->tdata.any)
706
470b557a
AK		 707#define elf_s390_local_plt(abfd) \
708 (elf_s390_tdata (abfd)->local_plt)
709
69fc87f1
MS		 710#define elf_s390_local_got_tls_type(abfd) \
711 (elf_s390_tdata (abfd)->local_got_tls_type)
712
0ffa91dd
NC		 713#define is_s390_elf(bfd) \
714 (bfd_get_flavour (bfd) == bfd_target_elf_flavour \
715 && elf_tdata (bfd) != NULL \
4dfe6ac6 716 && elf_object_id (bfd) == S390_ELF_DATA)
0ffa91dd 717
69fc87f1 718static bfd_boolean
62d7a5f6 719elf_s390_mkobject (bfd *abfd)
69fc87f1 720{
0ffa91dd 721 return bfd_elf_allocate_object (abfd, sizeof (struct elf_s390_obj_tdata),
4dfe6ac6 722 S390_ELF_DATA);
69fc87f1
MS		 723}
724
725static bfd_boolean
2c3fc389 726elf_s390_object_p (bfd *abfd)
69fc87f1 727{
69fc87f1
MS		 728 /* Set the right machine number for an s390 elf32 file. */
729 return bfd_default_set_arch_mach (abfd, bfd_arch_s390, bfd_mach_s390_31);
730}
731
a85d7ed0
NC		 732/* s390 ELF linker hash table. */
733
734struct elf_s390_link_hash_table
735{
0451c93c 736 struct elf_link_hash_table elf;
a85d7ed0 737
0451c93c 738 /* Short-cuts to get to dynamic linker sections. */
0451c93c
MS		 739 asection *sdynbss;
740 asection *srelbss;
470b557a 741 asection *irelifunc;
ec338859 742
2c3fc389
NC		 743 union
744 {
69fc87f1
MS		 745 bfd_signed_vma refcount;
746 bfd_vma offset;
747 } tls_ldm_got;
748
87d72d41
AM		 749 /* Small local sym cache. */
750 struct sym_cache sym_cache;
0451c93c 751};
a85d7ed0
NC		 752
753/* Get the s390 ELF linker hash table from a link_info structure. */
754
755#define elf_s390_hash_table(p) \
4dfe6ac6
NC		 756 (elf_hash_table_id ((struct elf_link_hash_table *) ((p)->hash)) \
757 == S390_ELF_DATA ? ((struct elf_s390_link_hash_table *) ((p)->hash)) : NULL)
a85d7ed0 758
470b557a
AK		 759#undef ELF64
760#include "elf-s390-common.c"
761
a85d7ed0
NC		 762/* Create an entry in an s390 ELF linker hash table. */
763
764static struct bfd_hash_entry *
2c3fc389
NC		 765link_hash_newfunc (struct bfd_hash_entry *entry,
766 struct bfd_hash_table *table,
767 const char *string)
a85d7ed0 768{
a85d7ed0
NC		 769 /* Allocate the structure if it has not already been allocated by a
770 subclass. */
0451c93c
MS		 771 if (entry == NULL)
772 {
773 entry = bfd_hash_allocate (table,
774 sizeof (struct elf_s390_link_hash_entry));
775 if (entry == NULL)
776 return entry;
777 }
ec338859 778
a85d7ed0 779 /* Call the allocation method of the superclass. */
0451c93c
MS		 780 entry = _bfd_elf_link_hash_newfunc (entry, table, string);
781 if (entry != NULL)
a85d7ed0 782 {
0451c93c 783 struct elf_s390_link_hash_entry *eh;
ec338859 784
0451c93c
MS		 785 eh = (struct elf_s390_link_hash_entry *) entry;
786 eh->dyn_relocs = NULL;
5236c819 787 eh->gotplt_refcount = 0;
69fc87f1 788 eh->tls_type = GOT_UNKNOWN;
470b557a
AK		 789 eh->ifunc_resolver_address = 0;
790 eh->ifunc_resolver_section = NULL;
a85d7ed0
NC		 791 }
792
0451c93c 793 return entry;
a85d7ed0
NC		 794}
795
796/* Create an s390 ELF linker hash table. */
797
798static struct bfd_link_hash_table *
2c3fc389 799elf_s390_link_hash_table_create (bfd *abfd)
a85d7ed0
NC		 800{
801 struct elf_s390_link_hash_table *ret;
dc810e39 802 bfd_size_type amt = sizeof (struct elf_s390_link_hash_table);
a85d7ed0 803
7bf52ea2 804 ret = (struct elf_s390_link_hash_table *) bfd_zmalloc (amt);
0451c93c 805 if (ret == NULL)
a85d7ed0
NC		 806 return NULL;
807
66eb6687 808 if (!_bfd_elf_link_hash_table_init (&ret->elf, abfd, link_hash_newfunc,
4dfe6ac6
NC		 809 sizeof (struct elf_s390_link_hash_entry),
810 S390_ELF_DATA))
a85d7ed0 811 {
e2d34d7d 812 free (ret);
a85d7ed0
NC		 813 return NULL;
814 }
815
0451c93c
MS		 816 return &ret->elf.root;
817}
818
819/* Create .got, .gotplt, and .rela.got sections in DYNOBJ, and set up
820 shortcuts to them in our hash table. */
821
b34976b6 822static bfd_boolean
2c3fc389 823create_got_section (bfd *dynobj, struct bfd_link_info *info)
0451c93c
MS		 824{
825 struct elf_s390_link_hash_table *htab;
826
827 if (! _bfd_elf_create_got_section (dynobj, info))
b34976b6 828 return FALSE;
0451c93c
MS		 829
830 htab = elf_s390_hash_table (info);
3d4d4302
AM		 831 htab->elf.sgot = bfd_get_linker_section (dynobj, ".got");
832 htab->elf.sgotplt = bfd_get_linker_section (dynobj, ".got.plt");
833 htab->elf.srelgot = bfd_get_linker_section (dynobj, ".rela.got");
f41345a7 834 if (!htab->elf.sgot || !htab->elf.sgotplt || !htab->elf.srelgot)
0451c93c
MS		 835 abort ();
836
b34976b6 837 return TRUE;
0451c93c
MS		 838}
839
840/* Create .plt, .rela.plt, .got, .got.plt, .rela.got, .dynbss, and
841 .rela.bss sections in DYNOBJ, and set up shortcuts to them in our
842 hash table. */
843
b34976b6 844static bfd_boolean
2c3fc389 845elf_s390_create_dynamic_sections (bfd *dynobj, struct bfd_link_info *info)
0451c93c
MS		 846{
847 struct elf_s390_link_hash_table *htab;
848
849 htab = elf_s390_hash_table (info);
f41345a7 850 if (!htab->elf.sgot && !create_got_section (dynobj, info))
b34976b6 851 return FALSE;
0451c93c
MS		 852
853 if (!_bfd_elf_create_dynamic_sections (dynobj, info))
b34976b6 854 return FALSE;
0451c93c 855
3d4d4302
AM		 856 htab->elf.splt = bfd_get_linker_section (dynobj, ".plt");
857 htab->elf.srelplt = bfd_get_linker_section (dynobj, ".rela.plt");
858 htab->sdynbss = bfd_get_linker_section (dynobj, ".dynbss");
0e1862bb 859 if (!bfd_link_pic (info))
3d4d4302 860 htab->srelbss = bfd_get_linker_section (dynobj, ".rela.bss");
0451c93c 861
f41345a7 862 if (!htab->elf.splt || !htab->elf.srelplt || !htab->sdynbss
0e1862bb 863 || (!bfd_link_pic (info) && !htab->srelbss))
0451c93c
MS		 864 abort ();
865
b34976b6 866 return TRUE;
a85d7ed0
NC		 867}
868
0451c93c
MS		 869/* Copy the extra info we tack onto an elf_link_hash_entry. */
870
871static void
2c3fc389
NC		 872elf_s390_copy_indirect_symbol (struct bfd_link_info *info,
873 struct elf_link_hash_entry *dir,
874 struct elf_link_hash_entry *ind)
0451c93c
MS		 875{
876 struct elf_s390_link_hash_entry *edir, *eind;
877
878 edir = (struct elf_s390_link_hash_entry *) dir;
879 eind = (struct elf_s390_link_hash_entry *) ind;
880
881 if (eind->dyn_relocs != NULL)
882 {
883 if (edir->dyn_relocs != NULL)
884 {
00d8c7a9
AK		 885 struct elf_dyn_relocs **pp;
886 struct elf_dyn_relocs *p;
0451c93c 887
fcfa13d2 888 /* Add reloc counts against the indirect sym to the direct sym
0451c93c
MS		 889 list. Merge any entries against the same section. */
890 for (pp = &eind->dyn_relocs; (p = *pp) != NULL; )
891 {
00d8c7a9 892 struct elf_dyn_relocs *q;
0451c93c
MS		 893
894 for (q = edir->dyn_relocs; q != NULL; q = q->next)
895 if (q->sec == p->sec)
896 {
897 q->pc_count += p->pc_count;
898 q->count += p->count;
899 *pp = p->next;
900 break;
901 }
902 if (q == NULL)
903 pp = &p->next;
904 }
905 *pp = edir->dyn_relocs;
906 }
907
908 edir->dyn_relocs = eind->dyn_relocs;
909 eind->dyn_relocs = NULL;
910 }
911
69fc87f1
MS		 912 if (ind->root.type == bfd_link_hash_indirect
913 && dir->got.refcount <= 0)
914 {
915 edir->tls_type = eind->tls_type;
916 eind->tls_type = GOT_UNKNOWN;
917 }
918
64285810
MS		 919 if (ELIMINATE_COPY_RELOCS
920 && ind->root.type != bfd_link_hash_indirect
f5385ebf
AM		 921 && dir->dynamic_adjusted)
922 {
923 /* If called to transfer flags for a weakdef during processing
924 of elf_adjust_dynamic_symbol, don't copy non_got_ref.
925 We clear it ourselves for ELIMINATE_COPY_RELOCS. */
926 dir->ref_dynamic |= ind->ref_dynamic;
927 dir->ref_regular |= ind->ref_regular;
928 dir->ref_regular_nonweak |= ind->ref_regular_nonweak;
929 dir->needs_plt |= ind->needs_plt;
930 }
64285810 931 else
fcfa13d2 932 _bfd_elf_link_hash_copy_indirect (info, dir, ind);
0451c93c 933}
a85d7ed0 934
69fc87f1 935static int
2c3fc389
NC		 936elf_s390_tls_transition (struct bfd_link_info *info,
937 int r_type,
938 int is_local)
69fc87f1 939{
0e1862bb 940 if (bfd_link_pic (info))
69fc87f1
MS		 941 return r_type;
942
943 switch (r_type)
944 {
945 case R_390_TLS_GD32:
946 case R_390_TLS_IE32:
947 if (is_local)
948 return R_390_TLS_LE32;
949 return R_390_TLS_IE32;
950 case R_390_TLS_GOTIE32:
951 if (is_local)
952 return R_390_TLS_LE32;
953 return R_390_TLS_GOTIE32;
954 case R_390_TLS_LDM32:
955 return R_390_TLS_LE32;
956 }
957
958 return r_type;
959}
960
a85d7ed0
NC		 961/* Look through the relocs for a section during the first phase, and
962 allocate space in the global offset table or procedure linkage
963 table. */
964
b34976b6 965static bfd_boolean
2c3fc389
NC		 966elf_s390_check_relocs (bfd *abfd,
967 struct bfd_link_info *info,
968 asection *sec,
969 const Elf_Internal_Rela *relocs)
a85d7ed0 970{
0451c93c 971 struct elf_s390_link_hash_table *htab;
a85d7ed0
NC		 972 Elf_Internal_Shdr *symtab_hdr;
973 struct elf_link_hash_entry **sym_hashes;
a85d7ed0
NC		 974 const Elf_Internal_Rela *rel;
975 const Elf_Internal_Rela *rel_end;
a85d7ed0 976 asection *sreloc;
5236c819 977 bfd_signed_vma *local_got_refcounts;
69fc87f1 978 int tls_type, old_tls_type;
470b557a 979 Elf_Internal_Sym *isym;
a85d7ed0 980
0e1862bb 981 if (bfd_link_relocatable (info))
b34976b6 982 return TRUE;
a85d7ed0 983
0ffa91dd
NC		 984 BFD_ASSERT (is_s390_elf (abfd));
985
0451c93c 986 htab = elf_s390_hash_table (info);
0ffa91dd 987 symtab_hdr = &elf_symtab_hdr (abfd);
a85d7ed0 988 sym_hashes = elf_sym_hashes (abfd);
5236c819 989 local_got_refcounts = elf_local_got_refcounts (abfd);
a85d7ed0 990
a85d7ed0
NC		 991 sreloc = NULL;
992
993 rel_end = relocs + sec->reloc_count;
994 for (rel = relocs; rel < rel_end; rel++)
995 {
69fc87f1 996 unsigned int r_type;
a85d7ed0
NC		 997 unsigned long r_symndx;
998 struct elf_link_hash_entry *h;
999
1000 r_symndx = ELF32_R_SYM (rel->r_info);
1001
0451c93c
MS		 1002 if (r_symndx >= NUM_SHDR_ENTRIES (symtab_hdr))
1003 {
d003868e
AM		 1004 (*_bfd_error_handler) (_("%B: bad symbol index: %d"),
1005 abfd, r_symndx);
b34976b6 1006 return FALSE;
0451c93c
MS		 1007 }
1008
a85d7ed0 1009 if (r_symndx < symtab_hdr->sh_info)
470b557a
AK		 1010 {
1011 /* A local symbol. */
1012 isym = bfd_sym_from_r_symndx (&htab->sym_cache,
1013 abfd, r_symndx);
1014 if (isym == NULL)
1015 return FALSE;
1016
1017 if (ELF_ST_TYPE (isym->st_info) == STT_GNU_IFUNC)
1018 {
1019 struct plt_entry *plt;
1020
0cb79d69
AK		 1021 if (htab->elf.dynobj == NULL)
1022 htab->elf.dynobj = abfd;
1023
470b557a
AK		 1024 if (!s390_elf_create_ifunc_sections (htab->elf.dynobj, info))
1025 return FALSE;
1026
1027 if (local_got_refcounts == NULL)
1028 {
1029 if (!elf_s390_allocate_local_syminfo (abfd, symtab_hdr))
1030 return FALSE;
1031 local_got_refcounts = elf_local_got_refcounts (abfd);
1032 }
1033 plt = elf_s390_local_plt (abfd);
1034 plt[r_symndx].plt.refcount++;
1035 }
1036 h = NULL;
1037 }
a85d7ed0 1038 else
973a3492
L		 1039 {
1040 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
1041 while (h->root.type == bfd_link_hash_indirect
1042 || h->root.type == bfd_link_hash_warning)
1043 h = (struct elf_link_hash_entry *) h->root.u.i.link;
81fbe831
AM		 1044
1045 /* PR15323, ref flags aren't set for references in the same
1046 object. */
1047 h->root.non_ir_ref = 1;
973a3492 1048 }
a85d7ed0 1049
5236c819
MS		 1050 /* Create got section and local_got_refcounts array if they
1051 are needed. */
69fc87f1
MS		 1052 r_type = elf_s390_tls_transition (info,
1053 ELF32_R_TYPE (rel->r_info),
1054 h == NULL);
1055 switch (r_type)
a85d7ed0
NC		 1056 {
1057 case R_390_GOT12:
5236c819 1058 case R_390_GOT16:
bd1ea41b 1059 case R_390_GOT20:
a85d7ed0 1060 case R_390_GOT32:
befc3abb 1061 case R_390_GOTENT:
5236c819
MS		 1062 case R_390_GOTPLT12:
1063 case R_390_GOTPLT16:
bd1ea41b 1064 case R_390_GOTPLT20:
5236c819
MS		 1065 case R_390_GOTPLT32:
1066 case R_390_GOTPLTENT:
69fc87f1
MS		 1067 case R_390_TLS_GD32:
1068 case R_390_TLS_GOTIE12:
bd1ea41b 1069 case R_390_TLS_GOTIE20:
69fc87f1
MS		 1070 case R_390_TLS_GOTIE32:
1071 case R_390_TLS_IEENT:
1072 case R_390_TLS_IE32:
1073 case R_390_TLS_LDM32:
5236c819
MS		 1074 if (h == NULL
1075 && local_got_refcounts == NULL)
a85d7ed0 1076 {
470b557a 1077 if (!elf_s390_allocate_local_syminfo (abfd, symtab_hdr))
5236c819 1078 return FALSE;
470b557a 1079 local_got_refcounts = elf_local_got_refcounts (abfd);
a85d7ed0 1080 }
5236c819
MS		 1081 /* Fall through. */
1082 case R_390_GOTOFF16:
1083 case R_390_GOTOFF32:
0451c93c 1084 case R_390_GOTPC:
befc3abb 1085 case R_390_GOTPCDBL:
f41345a7 1086 if (htab->elf.sgot == NULL)
0451c93c
MS		 1087 {
1088 if (htab->elf.dynobj == NULL)
1089 htab->elf.dynobj = abfd;
1090 if (!create_got_section (htab->elf.dynobj, info))
b34976b6 1091 return FALSE;
0451c93c 1092 }
5236c819
MS		 1093 }
1094
470b557a
AK		 1095 if (h != NULL)
1096 {
1097 if (htab->elf.dynobj == NULL)
1098 htab->elf.dynobj = abfd;
1099 if (!s390_elf_create_ifunc_sections (htab->elf.dynobj, info))
1100 return FALSE;
1101
1102 /* Make sure an IFUNC symbol defined in a non-shared object
1103 always gets a PLT slot. */
1104 if (s390_is_ifunc_symbol_p (h) && h->def_regular)
1105 {
1106 /* The symbol is called by the dynamic loader in order
1107 to resolve the relocation. So it is in fact also
1108 referenced. */
1109 h->ref_regular = 1;
1110 h->needs_plt = 1;
1111 }
1112 }
69fc87f1 1113 switch (r_type)
5236c819 1114 {
5236c819
MS		 1115 case R_390_GOTPC:
1116 case R_390_GOTPCDBL:
470b557a
AK		 1117 /* These relocs do not need a GOT slot. They just load the
1118 GOT pointer itself or address something else relative to
1119 the GOT. Since the GOT pointer has been set up above we
1120 are done. */
a85d7ed0 1121 break;
01a53584
AK		 1122 case R_390_GOTOFF16:
1123 case R_390_GOTOFF32:
1124 if (h == NULL || !s390_is_ifunc_symbol_p (h) || !h->def_regular)
1125 break;
a85d7ed0 1126
fb798c50 1127 case R_390_PLT12DBL:
26e41594 1128 case R_390_PLT16DBL:
fb798c50 1129 case R_390_PLT24DBL:
26e41594 1130 case R_390_PLT32DBL:
a85d7ed0 1131 case R_390_PLT32:
5236c819
MS		 1132 case R_390_PLTOFF16:
1133 case R_390_PLTOFF32:
a85d7ed0 1134 /* This symbol requires a procedure linkage table entry. We
26e41594
AM		 1135 actually build the entry in adjust_dynamic_symbol,
1136 because this might be a case of linking PIC code which is
1137 never referenced by a dynamic object, in which case we
1138 don't need to generate a procedure linkage table entry
1139 after all. */
a85d7ed0
NC		 1140
1141 /* If this is a local symbol, we resolve it directly without
26e41594 1142 creating a procedure linkage table entry. */
5236c819
MS		 1143 if (h != NULL)
1144 {
f5385ebf 1145 h->needs_plt = 1;
5236c819
MS		 1146 h->plt.refcount += 1;
1147 }
1148 break;
a85d7ed0 1149
5236c819
MS		 1150 case R_390_GOTPLT12:
1151 case R_390_GOTPLT16:
bd1ea41b 1152 case R_390_GOTPLT20:
5236c819
MS		 1153 case R_390_GOTPLT32:
1154 case R_390_GOTPLTENT:
1155 /* This symbol requires either a procedure linkage table entry
1156 or an entry in the local got. We actually build the entry
1157 in adjust_dynamic_symbol because whether this is really a
1158 global reference can change and with it the fact if we have
1159 to create a plt entry or a local got entry. To be able to
1160 make a once global symbol a local one we have to keep track
1161 of the number of gotplt references that exist for this
1162 symbol. */
1163 if (h != NULL)
1164 {
1165 ((struct elf_s390_link_hash_entry *) h)->gotplt_refcount++;
f5385ebf 1166 h->needs_plt = 1;
5236c819
MS		 1167 h->plt.refcount += 1;
1168 }
1169 else
1170 local_got_refcounts[r_symndx] += 1;
a85d7ed0
NC		 1171 break;
1172
69fc87f1
MS		 1173 case R_390_TLS_LDM32:
1174 htab->tls_ldm_got.refcount += 1;
1175 break;
1176
1177 case R_390_TLS_IE32:
1178 case R_390_TLS_GOTIE12:
bd1ea41b 1179 case R_390_TLS_GOTIE20:
69fc87f1
MS		 1180 case R_390_TLS_GOTIE32:
1181 case R_390_TLS_IEENT:
0e1862bb 1182 if (bfd_link_pic (info))
69fc87f1 1183 info->flags |= DF_STATIC_TLS;
ae9a127f 1184 /* Fall through. */
69fc87f1
MS		 1185
1186 case R_390_GOT12:
26e41594 1187 case R_390_GOT16:
bd1ea41b 1188 case R_390_GOT20:
69fc87f1
MS		 1189 case R_390_GOT32:
1190 case R_390_GOTENT:
1191 case R_390_TLS_GD32:
1192 /* This symbol requires a global offset table entry. */
1193 switch (r_type)
1194 {
1195 default:
1196 case R_390_GOT12:
1197 case R_390_GOT16:
bd1ea41b 1198 case R_390_GOT20:
69fc87f1
MS		 1199 case R_390_GOT32:
1200 case R_390_GOTENT:
1201 tls_type = GOT_NORMAL;
1202 break;
1203 case R_390_TLS_GD32:
1204 tls_type = GOT_TLS_GD;
1205 break;
1206 case R_390_TLS_IE32:
1207 case R_390_TLS_GOTIE32:
1208 tls_type = GOT_TLS_IE;
1209 break;
1210 case R_390_TLS_GOTIE12:
bd1ea41b 1211 case R_390_TLS_GOTIE20:
69fc87f1
MS		 1212 case R_390_TLS_IEENT:
1213 tls_type = GOT_TLS_IE_NLT;
1214 break;
1215 }
1216
1217 if (h != NULL)
1218 {
1219 h->got.refcount += 1;
1220 old_tls_type = elf_s390_hash_entry(h)->tls_type;
1221 }
1222 else
1223 {
1224 local_got_refcounts[r_symndx] += 1;
1225 old_tls_type = elf_s390_local_got_tls_type (abfd) [r_symndx];
1226 }
1227 /* If a TLS symbol is accessed using IE at least once,
1228 there is no point to use dynamic model for it. */
1229 if (old_tls_type != tls_type && old_tls_type != GOT_UNKNOWN)
1230 {
1231 if (old_tls_type == GOT_NORMAL || tls_type == GOT_NORMAL)
1232 {
1233 (*_bfd_error_handler)
d003868e
AM		 1234 (_("%B: `%s' accessed both as normal and thread local symbol"),
1235 abfd, h->root.root.string);
69fc87f1
MS		 1236 return FALSE;
1237 }
1238 if (old_tls_type > tls_type)
1239 tls_type = old_tls_type;
1240 }
1241
1242 if (old_tls_type != tls_type)
1243 {
1244 if (h != NULL)
1245 elf_s390_hash_entry (h)->tls_type = tls_type;
1246 else
1247 elf_s390_local_got_tls_type (abfd) [r_symndx] = tls_type;
1248 }
1249
1250 if (r_type != R_390_TLS_IE32)
1251 break;
ae9a127f 1252 /* Fall through. */
69fc87f1
MS		 1253
1254 case R_390_TLS_LE32:
e00d879a
AK		 1255 /* For static linking and executables this reloc will be
1256 calculated at linktime otherwise a TLS_TPOFF runtime
1257 reloc will be generated. */
0e1862bb 1258 if (r_type == R_390_TLS_LE32 && bfd_link_pie (info))
e00d879a
AK		 1259 break;
1260
0e1862bb 1261 if (!bfd_link_pic (info))
69fc87f1
MS		 1262 break;
1263 info->flags |= DF_STATIC_TLS;
ae9a127f 1264 /* Fall through. */
69fc87f1 1265
26e41594
AM		 1266 case R_390_8:
1267 case R_390_16:
a85d7ed0 1268 case R_390_32:
26e41594 1269 case R_390_PC16:
fb798c50 1270 case R_390_PC12DBL:
26e41594 1271 case R_390_PC16DBL:
fb798c50 1272 case R_390_PC24DBL:
befc3abb 1273 case R_390_PC32DBL:
a85d7ed0 1274 case R_390_PC32:
99ba5125 1275 if (h != NULL && bfd_link_executable (info))
0451c93c
MS		 1276 {
1277 /* If this reloc is in a read-only section, we might
1278 need a copy reloc. We can't check reliably at this
1279 stage whether the section is read-only, as input
1280 sections have not yet been mapped to output sections.
1281 Tentatively set the flag for now, and correct in
1282 adjust_dynamic_symbol. */
f5385ebf 1283 h->non_got_ref = 1;
ec338859 1284
0e1862bb 1285 if (!bfd_link_pic (info))
470b557a
AK		 1286 {
1287 /* We may need a .plt entry if the function this reloc
1288 refers to is in a shared lib. */
1289 h->plt.refcount += 1;
1290 }
0451c93c 1291 }
a85d7ed0
NC		 1292
1293 /* If we are creating a shared library, and this is a reloc
0451c93c
MS		 1294 against a global symbol, or a non PC relative reloc
1295 against a local symbol, then we need to copy the reloc
1296 into the shared library. However, if we are linking with
1297 -Bsymbolic, we do not need to copy a reloc against a
1298 global symbol which is defined in an object we are
1299 including in the link (i.e., DEF_REGULAR is set). At
1300 this point we have not seen all the input files, so it is
1301 possible that DEF_REGULAR is not set now but will be set
1302 later (it is never cleared). In case of a weak definition,
1303 DEF_REGULAR may be cleared later by a strong definition in
1304 a shared library. We account for that possibility below by
1305 storing information in the relocs_copied field of the hash
1306 table entry. A similar situation occurs when creating
1307 shared libraries and symbol visibility changes render the
1308 symbol local.
1309
1310 If on the other hand, we are creating an executable, we
1311 may need to keep relocations for symbols satisfied by a
1312 dynamic library if we manage to avoid copy relocs for the
1313 symbol. */
0e1862bb 1314 if ((bfd_link_pic (info)
0451c93c 1315 && (sec->flags & SEC_ALLOC) != 0
ec338859 1316 && ((ELF32_R_TYPE (rel->r_info) != R_390_PC16
fb798c50 1317 && ELF32_R_TYPE (rel->r_info) != R_390_PC12DBL
0451c93c 1318 && ELF32_R_TYPE (rel->r_info) != R_390_PC16DBL
fb798c50 1319 && ELF32_R_TYPE (rel->r_info) != R_390_PC24DBL
befc3abb 1320 && ELF32_R_TYPE (rel->r_info) != R_390_PC32DBL
0451c93c
MS		 1321 && ELF32_R_TYPE (rel->r_info) != R_390_PC32)
1322 || (h != NULL
8c21ca21 1323 && (! SYMBOLIC_BIND (info, h)
0451c93c 1324 || h->root.type == bfd_link_hash_defweak
f5385ebf 1325 || !h->def_regular))))
64285810 1326 || (ELIMINATE_COPY_RELOCS
0e1862bb 1327 && !bfd_link_pic (info)
0451c93c
MS		 1328 && (sec->flags & SEC_ALLOC) != 0
1329 && h != NULL
1330 && (h->root.type == bfd_link_hash_defweak
f5385ebf 1331 || !h->def_regular)))
a85d7ed0 1332 {
00d8c7a9
AK		 1333 struct elf_dyn_relocs *p;
1334 struct elf_dyn_relocs **head;
ec338859 1335
0451c93c
MS		 1336 /* We must copy these reloc types into the output file.
1337 Create a reloc section in dynobj and make room for
1338 this reloc. */
a85d7ed0
NC		 1339 if (sreloc == NULL)
1340 {
0451c93c
MS		 1341 if (htab->elf.dynobj == NULL)
1342 htab->elf.dynobj = abfd;
a85d7ed0 1343
83bac4b0
NC		 1344 sreloc = _bfd_elf_make_dynamic_reloc_section
1345 (sec, htab->elf.dynobj, 2, abfd, /*rela?*/ TRUE);
1346
a85d7ed0 1347 if (sreloc == NULL)
83bac4b0 1348 return FALSE;
a85d7ed0
NC		 1349 }
1350
0451c93c
MS		 1351 /* If this is a global symbol, we count the number of
1352 relocations we need for this symbol. */
1353 if (h != NULL)
a85d7ed0 1354 {
ec338859 1355 head = &((struct elf_s390_link_hash_entry *) h)->dyn_relocs;
0451c93c
MS		 1356 }
1357 else
1358 {
ec338859
AM		 1359 /* Track dynamic relocs needed for local syms too.
1360 We really need local syms available to do this
1361 easily. Oh well. */
ec338859 1362 asection *s;
6edfbbad 1363 void *vpp;
ae9a127f 1364
87d72d41
AM		 1365 isym = bfd_sym_from_r_symndx (&htab->sym_cache,
1366 abfd, r_symndx);
1367 if (isym == NULL)
b34976b6 1368 return FALSE;
ec338859 1369
87d72d41
AM		 1370 s = bfd_section_from_elf_index (abfd, isym->st_shndx);
1371 if (s == NULL)
1372 s = sec;
1373
6edfbbad 1374 vpp = &elf_section_data (s)->local_dynrel;
00d8c7a9 1375 head = (struct elf_dyn_relocs **) vpp;
ec338859
AM		 1376 }
1377
1378 p = *head;
1379 if (p == NULL || p->sec != sec)
1380 {
1381 bfd_size_type amt = sizeof *p;
ae9a127f 1382
00d8c7a9 1383 p = ((struct elf_dyn_relocs *)
ec338859
AM		 1384 bfd_alloc (htab->elf.dynobj, amt));
1385 if (p == NULL)
b34976b6 1386 return FALSE;
ec338859
AM		 1387 p->next = *head;
1388 *head = p;
1389 p->sec = sec;
1390 p->count = 0;
1391 p->pc_count = 0;
a85d7ed0 1392 }
ec338859
AM		 1393
1394 p->count += 1;
1395 if (ELF32_R_TYPE (rel->r_info) == R_390_PC16
fb798c50 1396 || ELF32_R_TYPE (rel->r_info) == R_390_PC12DBL
ec338859 1397 || ELF32_R_TYPE (rel->r_info) == R_390_PC16DBL
fb798c50 1398 || ELF32_R_TYPE (rel->r_info) == R_390_PC24DBL
befc3abb 1399 || ELF32_R_TYPE (rel->r_info) == R_390_PC32DBL
ec338859
AM		 1400 || ELF32_R_TYPE (rel->r_info) == R_390_PC32)
1401 p->pc_count += 1;
a85d7ed0 1402 }
a85d7ed0 1403 break;
ec338859 1404
a85d7ed0
NC		 1405 /* This relocation describes the C++ object vtable hierarchy.
1406 Reconstruct it for later use during GC. */
26e41594 1407 case R_390_GNU_VTINHERIT:
c152c796 1408 if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
26e41594
AM		 1409 return FALSE;
1410 break;
ec338859 1411
a85d7ed0
NC		 1412 /* This relocation describes which C++ vtable entries are actually
1413 used. Record for later use during GC. */
26e41594 1414 case R_390_GNU_VTENTRY:
d17e0c6e
JB		 1415 BFD_ASSERT (h != NULL);
1416 if (h != NULL
1417 && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
26e41594
AM		 1418 return FALSE;
1419 break;
ec338859 1420
a85d7ed0
NC		 1421 default:
1422 break;
1423 }
1424 }
1425
b34976b6 1426 return TRUE;
a85d7ed0
NC		 1427}
1428
1429/* Return the section that should be marked against GC for a given
1430 relocation. */
1431
1432static asection *
07adf181
AM		 1433elf_s390_gc_mark_hook (asection *sec,
1434 struct bfd_link_info *info,
1435 Elf_Internal_Rela *rel,
1436 struct elf_link_hash_entry *h,
1437 Elf_Internal_Sym *sym)
a85d7ed0
NC		 1438{
1439 if (h != NULL)
07adf181
AM		 1440 switch (ELF32_R_TYPE (rel->r_info))
1441 {
1442 case R_390_GNU_VTINHERIT:
1443 case R_390_GNU_VTENTRY:
1444 return NULL;
1445 }
1446 return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym);
a85d7ed0 1447
a85d7ed0
NC		 1448}
1449
1450/* Update the got entry reference counts for the section being removed. */
1451
b34976b6 1452static bfd_boolean
07adf181
AM		 1453elf_s390_gc_sweep_hook (bfd *abfd,
1454 struct bfd_link_info *info,
1455 asection *sec,
1456 const Elf_Internal_Rela *relocs)
a85d7ed0 1457{
470b557a 1458 struct elf_s390_link_hash_table *htab;
a85d7ed0
NC		 1459 Elf_Internal_Shdr *symtab_hdr;
1460 struct elf_link_hash_entry **sym_hashes;
1461 bfd_signed_vma *local_got_refcounts;
1462 const Elf_Internal_Rela *rel, *relend;
a85d7ed0 1463
0e1862bb 1464 if (bfd_link_relocatable (info))
7dda2462
TG		 1465 return TRUE;
1466
470b557a
AK		 1467 htab = elf_s390_hash_table (info);
1468 if (htab == NULL)
1469 return FALSE;
1470
ec338859 1471 elf_section_data (sec)->local_dynrel = NULL;
a85d7ed0 1472
0ffa91dd 1473 symtab_hdr = &elf_symtab_hdr (abfd);
0451c93c
MS		 1474 sym_hashes = elf_sym_hashes (abfd);
1475 local_got_refcounts = elf_local_got_refcounts (abfd);
a85d7ed0
NC		 1476
1477 relend = relocs + sec->reloc_count;
1478 for (rel = relocs; rel < relend; rel++)
5236c819 1479 {
26e41594
AM		 1480 unsigned long r_symndx;
1481 unsigned int r_type;
1482 struct elf_link_hash_entry *h = NULL;
1483
5236c819 1484 r_symndx = ELF32_R_SYM (rel->r_info);
26e41594
AM		 1485 if (r_symndx >= symtab_hdr->sh_info)
1486 {
1487 struct elf_s390_link_hash_entry *eh;
00d8c7a9
AK		 1488 struct elf_dyn_relocs **pp;
1489 struct elf_dyn_relocs *p;
0451c93c 1490
26e41594 1491 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
3eb128b2
AM		 1492 while (h->root.type == bfd_link_hash_indirect
1493 || h->root.type == bfd_link_hash_warning)
1494 h = (struct elf_link_hash_entry *) h->root.u.i.link;
26e41594 1495 eh = (struct elf_s390_link_hash_entry *) h;
5236c819 1496
26e41594
AM		 1497 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; pp = &p->next)
1498 if (p->sec == sec)
1499 {
1500 /* Everything must go for SEC. */
1501 *pp = p->next;
1502 break;
1503 }
1504 }
470b557a
AK		 1505 else
1506 {
1507 Elf_Internal_Sym *isym;
1508
1509 /* A local symbol. */
1510 isym = bfd_sym_from_r_symndx (&htab->sym_cache,
1511 abfd, r_symndx);
1512 if (isym == NULL)
1513 return FALSE;
1514
1515 if (ELF_ST_TYPE (isym->st_info) == STT_GNU_IFUNC)
1516 {
1517 struct plt_entry *plt = elf_s390_local_plt (abfd);
1518 if (plt[r_symndx].plt.refcount > 0)
1519 plt[r_symndx].plt.refcount--;
1520 }
1521 }
26e41594
AM		 1522
1523 r_type = ELF32_R_TYPE (rel->r_info);
1524 r_type = elf_s390_tls_transition (info, r_type, h != NULL);
69fc87f1 1525 switch (r_type)
5236c819 1526 {
69fc87f1
MS		 1527 case R_390_TLS_LDM32:
1528 if (elf_s390_hash_table (info)->tls_ldm_got.refcount > 0)
1529 elf_s390_hash_table (info)->tls_ldm_got.refcount -= 1;
1530 break;
1531
ef05be83
AK		 1532 case R_390_GOTOFF16:
1533 case R_390_GOTOFF32:
d47b13e0 1534 if (h != NULL && s390_is_ifunc_symbol_p (h) && h->def_regular)
01a53584
AK		 1535 {
1536 h->plt.refcount--;
1537 break;
1538 }
1539
ef05be83
AK		 1540 case R_390_GOTPC:
1541 case R_390_GOTPCDBL:
1542 break;
1543
69fc87f1
MS		 1544 case R_390_TLS_GD32:
1545 case R_390_TLS_IE32:
1546 case R_390_TLS_GOTIE12:
bd1ea41b 1547 case R_390_TLS_GOTIE20:
69fc87f1
MS		 1548 case R_390_TLS_GOTIE32:
1549 case R_390_TLS_IEENT:
5236c819
MS		 1550 case R_390_GOT12:
1551 case R_390_GOT16:
bd1ea41b 1552 case R_390_GOT20:
5236c819 1553 case R_390_GOT32:
5236c819
MS		 1554 case R_390_GOTENT:
1555 if (h != NULL)
1556 {
1557 if (h->got.refcount > 0)
1558 h->got.refcount -= 1;
1559 }
1560 else if (local_got_refcounts != NULL)
1561 {
1562 if (local_got_refcounts[r_symndx] > 0)
1563 local_got_refcounts[r_symndx] -= 1;
1564 }
26e41594 1565 break;
a85d7ed0 1566
5236c819
MS		 1567 case R_390_8:
1568 case R_390_12:
1569 case R_390_16:
bd1ea41b 1570 case R_390_20:
5236c819
MS		 1571 case R_390_32:
1572 case R_390_PC16:
fb798c50 1573 case R_390_PC12DBL:
5236c819 1574 case R_390_PC16DBL:
fb798c50 1575 case R_390_PC24DBL:
5236c819
MS		 1576 case R_390_PC32DBL:
1577 case R_390_PC32:
0e1862bb 1578 if (bfd_link_pic (info))
26e41594
AM		 1579 break;
1580 /* Fall through. */
1581
fb798c50 1582 case R_390_PLT12DBL:
69fc87f1 1583 case R_390_PLT16DBL:
fb798c50 1584 case R_390_PLT24DBL:
69fc87f1
MS		 1585 case R_390_PLT32DBL:
1586 case R_390_PLT32:
1587 case R_390_PLTOFF16:
1588 case R_390_PLTOFF32:
1589 if (h != NULL)
1590 {
1591 if (h->plt.refcount > 0)
1592 h->plt.refcount -= 1;
1593 }
1594 break;
1595
1596 case R_390_GOTPLT12:
1597 case R_390_GOTPLT16:
bd1ea41b 1598 case R_390_GOTPLT20:
69fc87f1
MS		 1599 case R_390_GOTPLT32:
1600 case R_390_GOTPLTENT:
1601 if (h != NULL)
1602 {
1603 if (h->plt.refcount > 0)
1604 {
1605 ((struct elf_s390_link_hash_entry *) h)->gotplt_refcount--;
1606 h->plt.refcount -= 1;
1607 }
1608 }
1609 else if (local_got_refcounts != NULL)
1610 {
1611 if (local_got_refcounts[r_symndx] > 0)
1612 local_got_refcounts[r_symndx] -= 1;
1613 }
1614 break;
1615
5236c819
MS		 1616 default:
1617 break;
1618 }
1619 }
a85d7ed0 1620
b34976b6 1621 return TRUE;
a85d7ed0
NC		 1622}
1623
5236c819
MS		 1624/* Make sure we emit a GOT entry if the symbol was supposed to have a PLT
1625 entry but we found we will not create any. Called when we find we will
1626 not have any PLT for this symbol, by for example
1627 elf_s390_adjust_dynamic_symbol when we're doing a proper dynamic link,
1628 or elf_s390_size_dynamic_sections if no dynamic sections will be
1629 created (we're only linking static objects). */
1630
1631static void
2c3fc389 1632elf_s390_adjust_gotplt (struct elf_s390_link_hash_entry *h)
5236c819
MS		 1633{
1634 if (h->elf.root.type == bfd_link_hash_warning)
1635 h = (struct elf_s390_link_hash_entry *) h->elf.root.u.i.link;
1636
1637 if (h->gotplt_refcount <= 0)
1638 return;
1639
1640 /* We simply add the number of gotplt references to the number
1641 * of got references for this symbol. */
1642 h->elf.got.refcount += h->gotplt_refcount;
1643 h->gotplt_refcount = -1;
1644}
1645
a85d7ed0
NC		 1646/* Adjust a symbol defined by a dynamic object and referenced by a
1647 regular object. The current definition is in some section of the
1648 dynamic object, but we're not including those sections. We have to
1649 change the definition to something the rest of the link can
1650 understand. */
1651
b34976b6 1652static bfd_boolean
2c3fc389
NC		 1653elf_s390_adjust_dynamic_symbol (struct bfd_link_info *info,
1654 struct elf_link_hash_entry *h)
a85d7ed0 1655{
0451c93c 1656 struct elf_s390_link_hash_table *htab;
a85d7ed0 1657 asection *s;
a85d7ed0 1658
470b557a
AK		 1659 /* STT_GNU_IFUNC symbol must go through PLT. */
1660 if (s390_is_ifunc_symbol_p (h))
d8ee9e44
AK		 1661 {
1662 /* All local STT_GNU_IFUNC references must be treated as local
1663 calls via local PLT. */
1664 if (h->ref_regular && SYMBOL_CALLS_LOCAL (info, h))
1665 {
1666 bfd_size_type pc_count = 0, count = 0;
1667 struct elf_dyn_relocs **pp;
1668 struct elf_s390_link_hash_entry *eh;
1669 struct elf_dyn_relocs *p;
1670
1671 eh = (struct elf_s390_link_hash_entry *) h;
1672 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; )
1673 {
1674 pc_count += p->pc_count;
1675 p->count -= p->pc_count;
1676 p->pc_count = 0;
1677 count += p->count;
1678 if (p->count == 0)
1679 *pp = p->next;
1680 else
1681 pp = &p->next;
1682 }
1683
1684 if (pc_count || count)
1685 {
1686 h->needs_plt = 1;
1687 h->non_got_ref = 1;
1688 if (h->plt.refcount <= 0)
1689 h->plt.refcount = 1;
1690 else
1691 h->plt.refcount += 1;
1692 }
1693 }
1694
1695 if (h->plt.refcount <= 0)
1696 {
1697 h->plt.offset = (bfd_vma) -1;
1698 h->needs_plt = 0;
1699 }
1700 return TRUE;
1701 }
470b557a 1702
a85d7ed0
NC		 1703 /* If this is a function, put it in the procedure linkage table. We
1704 will fill in the contents of the procedure linkage table later
cedb70c5 1705 (although we could actually do it here). */
a85d7ed0 1706 if (h->type == STT_FUNC
f5385ebf 1707 || h->needs_plt)
a85d7ed0 1708 {
0451c93c 1709 if (h->plt.refcount <= 0
8c21ca21
AK		 1710 || SYMBOL_CALLS_LOCAL (info, h)
1711 || (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
1712 && h->root.type != bfd_link_hash_undefweak))
a85d7ed0
NC		 1713 {
1714 /* This case can occur if we saw a PLT32 reloc in an input
26e41594
AM		 1715 file, but the symbol was never referred to by a dynamic
1716 object, or if all references were garbage collected. In
a85d7ed0
NC		 1717 such a case, we don't actually need to build a procedure
1718 linkage table, and we can just do a PC32 reloc instead. */
1719 h->plt.offset = (bfd_vma) -1;
f5385ebf 1720 h->needs_plt = 0;
5236c819 1721 elf_s390_adjust_gotplt((struct elf_s390_link_hash_entry *) h);
a85d7ed0
NC		 1722 }
1723
b34976b6 1724 return TRUE;
a85d7ed0 1725 }
bbd7ec4a 1726 else
0451c93c
MS		 1727 /* It's possible that we incorrectly decided a .plt reloc was
1728 needed for an R_390_PC32 reloc to a non-function sym in
1729 check_relocs. We can't decide accurately between function and
1730 non-function syms in check-relocs; Objects loaded later in
1731 the link may change h->type. So fix it now. */
bbd7ec4a 1732 h->plt.offset = (bfd_vma) -1;
a85d7ed0
NC		 1733
1734 /* If this is a weak symbol, and there is a real definition, the
1735 processor independent code will have arranged for us to see the
1736 real definition first, and we can just use the same value. */
f6e332e6 1737 if (h->u.weakdef != NULL)
a85d7ed0 1738 {
f6e332e6
AM		 1739 BFD_ASSERT (h->u.weakdef->root.type == bfd_link_hash_defined
1740 || h->u.weakdef->root.type == bfd_link_hash_defweak);
1741 h->root.u.def.section = h->u.weakdef->root.u.def.section;
1742 h->root.u.def.value = h->u.weakdef->root.u.def.value;
64285810 1743 if (ELIMINATE_COPY_RELOCS || info->nocopyreloc)
f6e332e6 1744 h->non_got_ref = h->u.weakdef->non_got_ref;
b34976b6 1745 return TRUE;
a85d7ed0
NC		 1746 }
1747
1748 /* This is a reference to a symbol defined by a dynamic object which
1749 is not a function. */
1750
1751 /* If we are creating a shared library, we must presume that the
1752 only references to the symbol are via the global offset table.
1753 For such cases we need not do anything here; the relocations will
1754 be handled correctly by relocate_section. */
0e1862bb 1755 if (bfd_link_pic (info))
b34976b6 1756 return TRUE;
a85d7ed0
NC		 1757
1758 /* If there are no references to this symbol that do not use the
1759 GOT, we don't need to generate a copy reloc. */
f5385ebf 1760 if (!h->non_got_ref)
b34976b6 1761 return TRUE;
a85d7ed0 1762
0451c93c
MS		 1763 /* If -z nocopyreloc was given, we won't generate them either. */
1764 if (info->nocopyreloc)
1765 {
f5385ebf 1766 h->non_got_ref = 0;
b34976b6 1767 return TRUE;
0451c93c
MS		 1768 }
1769
64285810 1770 if (ELIMINATE_COPY_RELOCS)
0451c93c 1771 {
64285810 1772 struct elf_s390_link_hash_entry * eh;
00d8c7a9 1773 struct elf_dyn_relocs *p;
0451c93c 1774
64285810
MS		 1775 eh = (struct elf_s390_link_hash_entry *) h;
1776 for (p = eh->dyn_relocs; p != NULL; p = p->next)
1777 {
1778 s = p->sec->output_section;
1779 if (s != NULL && (s->flags & SEC_READONLY) != 0)
1780 break;
1781 }
1782
1783 /* If we didn't find any dynamic relocs in read-only sections, then
1784 we'll be keeping the dynamic relocs and avoiding the copy reloc. */
1785 if (p == NULL)
1786 {
f5385ebf 1787 h->non_got_ref = 0;
64285810
MS		 1788 return TRUE;
1789 }
0451c93c
MS		 1790 }
1791
a85d7ed0
NC		 1792 /* We must allocate the symbol in our .dynbss section, which will
1793 become part of the .bss section of the executable. There will be
1794 an entry for this symbol in the .dynsym section. The dynamic
1795 object will contain position independent code, so all references
1796 from the dynamic object to this symbol will go through the global
1797 offset table. The dynamic linker will use the .dynsym entry to
1798 determine the address it must put in the global offset table, so
1799 both the dynamic object and the regular object will refer to the
1800 same memory location for the variable. */
1801
0451c93c 1802 htab = elf_s390_hash_table (info);
a85d7ed0 1803
0451c93c
MS		 1804 /* We must generate a R_390_COPY reloc to tell the dynamic linker to
1805 copy the initial value out of the dynamic object and into the
1806 runtime process image. */
1d7e9d18 1807 if ((h->root.u.def.section->flags & SEC_ALLOC) != 0 && h->size != 0)
a85d7ed0 1808 {
eea6121a 1809 htab->srelbss->size += sizeof (Elf32_External_Rela);
f5385ebf 1810 h->needs_copy = 1;
a85d7ed0
NC		 1811 }
1812
0451c93c 1813 s = htab->sdynbss;
a85d7ed0 1814
6cabe1ea 1815 return _bfd_elf_adjust_dynamic_copy (info, h, s);
a85d7ed0
NC		 1816}
1817
0451c93c
MS		 1818/* Allocate space in .plt, .got and associated reloc sections for
1819 dynamic relocs. */
1820
b34976b6 1821static bfd_boolean
2c3fc389 1822allocate_dynrelocs (struct elf_link_hash_entry *h, void * inf)
0451c93c
MS		 1823{
1824 struct bfd_link_info *info;
1825 struct elf_s390_link_hash_table *htab;
470b557a 1826 struct elf_s390_link_hash_entry *eh = (struct elf_s390_link_hash_entry *)h;
00d8c7a9 1827 struct elf_dyn_relocs *p;
0451c93c 1828
e92d460e 1829 if (h->root.type == bfd_link_hash_indirect)
b34976b6 1830 return TRUE;
0451c93c
MS		 1831
1832 info = (struct bfd_link_info *) inf;
1833 htab = elf_s390_hash_table (info);
1834
470b557a
AK		 1835 /* Since STT_GNU_IFUNC symbol must go through PLT, we handle it
1836 here if it is defined and referenced in a non-shared object. */
1837 if (s390_is_ifunc_symbol_p (h) && h->def_regular)
61643fba 1838 return s390_elf_allocate_ifunc_dyn_relocs (info, h);
470b557a
AK		 1839 else if (htab->elf.dynamic_sections_created
1840 && h->plt.refcount > 0)
0451c93c
MS		 1841 {
1842 /* Make sure this symbol is output as a dynamic symbol.
1843 Undefined weak syms won't yet be marked as dynamic. */
1844 if (h->dynindx == -1
f5385ebf 1845 && !h->forced_local)
0451c93c 1846 {
c152c796 1847 if (! bfd_elf_link_record_dynamic_symbol (info, h))
b34976b6 1848 return FALSE;
0451c93c
MS		 1849 }
1850
0e1862bb 1851 if (bfd_link_pic (info)
4ec72bde 1852 || WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, 0, h))
0451c93c 1853 {
f41345a7 1854 asection *s = htab->elf.splt;
0451c93c
MS		 1855
1856 /* If this is the first .plt entry, make room for the special
1857 first entry. */
eea6121a
AM		 1858 if (s->size == 0)
1859 s->size += PLT_FIRST_ENTRY_SIZE;
0451c93c 1860
eea6121a 1861 h->plt.offset = s->size;
0451c93c
MS		 1862
1863 /* If this symbol is not defined in a regular file, and we are
1864 not generating a shared library, then set the symbol to this
1865 location in the .plt. This is required to make function
1866 pointers compare as equal between the normal executable and
1867 the shared library. */
0e1862bb 1868 if (! bfd_link_pic (info)
f5385ebf 1869 && !h->def_regular)
0451c93c
MS		 1870 {
1871 h->root.u.def.section = s;
1872 h->root.u.def.value = h->plt.offset;
1873 }
ec338859 1874
0451c93c 1875 /* Make room for this entry. */
eea6121a 1876 s->size += PLT_ENTRY_SIZE;
ec338859 1877
0451c93c
MS		 1878 /* We also need to make an entry in the .got.plt section, which
1879 will be placed in the .got section by the linker script. */
f41345a7 1880 htab->elf.sgotplt->size += GOT_ENTRY_SIZE;
0451c93c
MS		 1881
1882 /* We also need to make an entry in the .rela.plt section. */
f41345a7 1883 htab->elf.srelplt->size += sizeof (Elf32_External_Rela);
0451c93c
MS		 1884 }
1885 else
1886 {
1887 h->plt.offset = (bfd_vma) -1;
f5385ebf 1888 h->needs_plt = 0;
5236c819 1889 elf_s390_adjust_gotplt((struct elf_s390_link_hash_entry *) h);
0451c93c 1890 }
ec338859 1891 }
0451c93c
MS		 1892 else
1893 {
1894 h->plt.offset = (bfd_vma) -1;
f5385ebf 1895 h->needs_plt = 0;
5236c819 1896 elf_s390_adjust_gotplt((struct elf_s390_link_hash_entry *) h);
ec338859
AM		 1897 }
1898
69fc87f1
MS		 1899 /* If R_390_TLS_{IE32,GOTIE32,GOTIE12,IEENT} symbol is now local to
1900 the binary, we can optimize a bit. IE32 and GOTIE32 get converted
1901 to R_390_TLS_LE32 requiring no TLS entry. For GOTIE12 and IEENT
1902 we can save the dynamic TLS relocation. */
1903 if (h->got.refcount > 0
0e1862bb 1904 && !bfd_link_pic (info)
69fc87f1
MS		 1905 && h->dynindx == -1
1906 && elf_s390_hash_entry(h)->tls_type >= GOT_TLS_IE)
0451c93c 1907 {
69fc87f1
MS		 1908 if (elf_s390_hash_entry(h)->tls_type == GOT_TLS_IE_NLT)
1909 /* For the GOTIE access without a literal pool entry the offset has
1910 to be stored somewhere. The immediate value in the instruction
1911 is not bit enough so the value is stored in the got. */
1912 {
f41345a7
AK		 1913 h->got.offset = htab->elf.sgot->size;
1914 htab->elf.sgot->size += GOT_ENTRY_SIZE;
69fc87f1
MS		 1915 }
1916 else
1917 h->got.offset = (bfd_vma) -1;
1918 }
1919 else if (h->got.refcount > 0)
1920 {
0451c93c 1921 asection *s;
b34976b6 1922 bfd_boolean dyn;
69fc87f1 1923 int tls_type = elf_s390_hash_entry(h)->tls_type;
0451c93c
MS		 1924
1925 /* Make sure this symbol is output as a dynamic symbol.
1926 Undefined weak syms won't yet be marked as dynamic. */
1927 if (h->dynindx == -1
f5385ebf 1928 && !h->forced_local)
0451c93c 1929 {
c152c796 1930 if (! bfd_elf_link_record_dynamic_symbol (info, h))
b34976b6 1931 return FALSE;
0451c93c
MS		 1932 }
1933
f41345a7 1934 s = htab->elf.sgot;
eea6121a
AM		 1935 h->got.offset = s->size;
1936 s->size += GOT_ENTRY_SIZE;
69fc87f1
MS		 1937 /* R_390_TLS_GD32 needs 2 consecutive GOT slots. */
1938 if (tls_type == GOT_TLS_GD)
eea6121a 1939 s->size += GOT_ENTRY_SIZE;
0451c93c 1940 dyn = htab->elf.dynamic_sections_created;
69fc87f1
MS		 1941 /* R_390_TLS_IE32 needs one dynamic relocation,
1942 R_390_TLS_GD32 needs one if local symbol and two if global. */
1943 if ((tls_type == GOT_TLS_GD && h->dynindx == -1)
1944 || tls_type >= GOT_TLS_IE)
f41345a7 1945 htab->elf.srelgot->size += sizeof (Elf32_External_Rela);
69fc87f1 1946 else if (tls_type == GOT_TLS_GD)
f41345a7 1947 htab->elf.srelgot->size += 2 * sizeof (Elf32_External_Rela);
82058a73
MS		 1948 else if ((ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
1949 || h->root.type != bfd_link_hash_undefweak)
0e1862bb 1950 && (bfd_link_pic (info)
82058a73 1951 || WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, 0, h)))
f41345a7 1952 htab->elf.srelgot->size += sizeof (Elf32_External_Rela);
0451c93c
MS		 1953 }
1954 else
1955 h->got.offset = (bfd_vma) -1;
1956
0451c93c 1957 if (eh->dyn_relocs == NULL)
b34976b6 1958 return TRUE;
0451c93c
MS		 1959
1960 /* In the shared -Bsymbolic case, discard space allocated for
1961 dynamic pc-relative relocs against symbols which turn out to be
1962 defined in regular objects. For the normal shared case, discard
1963 space for pc-relative relocs that have become local due to symbol
1964 visibility changes. */
1965
0e1862bb 1966 if (bfd_link_pic (info))
0451c93c 1967 {
8c21ca21 1968 if (SYMBOL_CALLS_LOCAL (info, h))
0451c93c 1969 {
00d8c7a9 1970 struct elf_dyn_relocs **pp;
0451c93c
MS		 1971
1972 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; )
1973 {
1974 p->count -= p->pc_count;
1975 p->pc_count = 0;
1976 if (p->count == 0)
1977 *pp = p->next;
1978 else
1979 pp = &p->next;
1980 }
1981 }
82058a73
MS		 1982
1983 /* Also discard relocs on undefined weak syms with non-default
1984 visibility. */
22d606e9 1985 if (eh->dyn_relocs != NULL
82058a73 1986 && h->root.type == bfd_link_hash_undefweak)
22d606e9
AM		 1987 {
1988 if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT)
1989 eh->dyn_relocs = NULL;
1990
1991 /* Make sure undefined weak symbols are output as a dynamic
1992 symbol in PIEs. */
1993 else if (h->dynindx == -1
1994 && !h->forced_local)
1995 {
1996 if (! bfd_elf_link_record_dynamic_symbol (info, h))
1997 return FALSE;
1998 }
1999 }
0451c93c 2000 }
64285810 2001 else if (ELIMINATE_COPY_RELOCS)
0451c93c
MS		 2002 {
2003 /* For the non-shared case, discard space for relocs against
2004 symbols which turn out to need copy relocs or are not
2005 dynamic. */
2006
f5385ebf
AM		 2007 if (!h->non_got_ref
2008 && ((h->def_dynamic
2009 && !h->def_regular)
0451c93c
MS		 2010 || (htab->elf.dynamic_sections_created
2011 && (h->root.type == bfd_link_hash_undefweak
2012 || h->root.type == bfd_link_hash_undefined))))
2013 {
2014 /* Make sure this symbol is output as a dynamic symbol.
2015 Undefined weak syms won't yet be marked as dynamic. */
2016 if (h->dynindx == -1
f5385ebf 2017 && !h->forced_local)
0451c93c 2018 {
c152c796 2019 if (! bfd_elf_link_record_dynamic_symbol (info, h))
b34976b6 2020 return FALSE;
0451c93c
MS		 2021 }
2022
2023 /* If that succeeded, we know we'll be keeping all the
2024 relocs. */
2025 if (h->dynindx != -1)
2026 goto keep;
2027 }
2028
2029 eh->dyn_relocs = NULL;
2030
ec338859 2031 keep: ;
0451c93c
MS		 2032 }
2033
2034 /* Finally, allocate space. */
2035 for (p = eh->dyn_relocs; p != NULL; p = p->next)
2036 {
2037 asection *sreloc = elf_section_data (p->sec)->sreloc;
ae9a127f 2038
eea6121a 2039 sreloc->size += p->count * sizeof (Elf32_External_Rela);
0451c93c
MS		 2040 }
2041
b34976b6 2042 return TRUE;
0451c93c
MS		 2043}
2044
2045/* Find any dynamic relocs that apply to read-only sections. */
2046
b34976b6 2047static bfd_boolean
2c3fc389 2048readonly_dynrelocs (struct elf_link_hash_entry *h, void * inf)
0451c93c
MS		 2049{
2050 struct elf_s390_link_hash_entry *eh;
00d8c7a9 2051 struct elf_dyn_relocs *p;
0451c93c
MS		 2052
2053 eh = (struct elf_s390_link_hash_entry *) h;
2054 for (p = eh->dyn_relocs; p != NULL; p = p->next)
2055 {
2056 asection *s = p->sec->output_section;
2057
2058 if (s != NULL && (s->flags & SEC_READONLY) != 0)
2059 {
2060 struct bfd_link_info *info = (struct bfd_link_info *) inf;
2061
2062 info->flags |= DF_TEXTREL;
2063
2064 /* Not an error, just cut short the traversal. */
b34976b6 2065 return FALSE;
0451c93c
MS		 2066 }
2067 }
b34976b6 2068 return TRUE;
0451c93c
MS		 2069}
2070
a85d7ed0
NC		 2071/* Set the sizes of the dynamic sections. */
2072
b34976b6 2073static bfd_boolean
2c3fc389
NC		 2074elf_s390_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED,
2075 struct bfd_link_info *info)
a85d7ed0 2076{
0451c93c 2077 struct elf_s390_link_hash_table *htab;
a85d7ed0
NC		 2078 bfd *dynobj;
2079 asection *s;
b34976b6 2080 bfd_boolean relocs;
0451c93c 2081 bfd *ibfd;
a85d7ed0 2082
0451c93c
MS		 2083 htab = elf_s390_hash_table (info);
2084 dynobj = htab->elf.dynobj;
2085 if (dynobj == NULL)
2086 abort ();
a85d7ed0 2087
0451c93c 2088 if (htab->elf.dynamic_sections_created)
a85d7ed0
NC		 2089 {
2090 /* Set the contents of the .interp section to the interpreter. */
9b8b325a 2091 if (bfd_link_executable (info) && !info->nointerp)
a85d7ed0 2092 {
3d4d4302 2093 s = bfd_get_linker_section (dynobj, ".interp");
0451c93c
MS		 2094 if (s == NULL)
2095 abort ();
eea6121a 2096 s->size = sizeof ELF_DYNAMIC_INTERPRETER;
a85d7ed0
NC		 2097 s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
2098 }
2099 }
a85d7ed0 2100
0451c93c
MS		 2101 /* Set up .got offsets for local syms, and space for local dynamic
2102 relocs. */
c72f2fb2 2103 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next)
a85d7ed0 2104 {
0451c93c
MS		 2105 bfd_signed_vma *local_got;
2106 bfd_signed_vma *end_local_got;
69fc87f1 2107 char *local_tls_type;
0451c93c
MS		 2108 bfd_size_type locsymcount;
2109 Elf_Internal_Shdr *symtab_hdr;
2110 asection *srela;
470b557a
AK		 2111 struct plt_entry *local_plt;
2112 unsigned int i;
a85d7ed0 2113
0ffa91dd 2114 if (! is_s390_elf (ibfd))
a85d7ed0
NC		 2115 continue;
2116
0451c93c 2117 for (s = ibfd->sections; s != NULL; s = s->next)
a85d7ed0 2118 {
00d8c7a9 2119 struct elf_dyn_relocs *p;
0451c93c 2120
6edfbbad 2121 for (p = elf_section_data (s)->local_dynrel; p != NULL; p = p->next)
a85d7ed0 2122 {
ec338859
AM		 2123 if (!bfd_is_abs_section (p->sec)
2124 && bfd_is_abs_section (p->sec->output_section))
2125 {
2126 /* Input section has been discarded, either because
2127 it is a copy of a linkonce section or due to
2128 linker script /DISCARD/, so we'll be discarding
2129 the relocs too. */
2130 }
248866a8 2131 else if (p->count != 0)
ec338859
AM		 2132 {
2133 srela = elf_section_data (p->sec)->sreloc;
eea6121a 2134 srela->size += p->count * sizeof (Elf32_External_Rela);
248866a8
AM		 2135 if ((p->sec->output_section->flags & SEC_READONLY) != 0)
2136 info->flags |= DF_TEXTREL;
ec338859 2137 }
a85d7ed0
NC		 2138 }
2139 }
0451c93c
MS		 2140
2141 local_got = elf_local_got_refcounts (ibfd);
2142 if (!local_got)
2143 continue;
2144
0ffa91dd 2145 symtab_hdr = &elf_symtab_hdr (ibfd);
0451c93c
MS		 2146 locsymcount = symtab_hdr->sh_info;
2147 end_local_got = local_got + locsymcount;
69fc87f1 2148 local_tls_type = elf_s390_local_got_tls_type (ibfd);
f41345a7
AK		 2149 s = htab->elf.sgot;
2150 srela = htab->elf.srelgot;
69fc87f1 2151 for (; local_got < end_local_got; ++local_got, ++local_tls_type)
a85d7ed0 2152 {
0451c93c 2153 if (*local_got > 0)
a85d7ed0 2154 {
eea6121a
AM		 2155 *local_got = s->size;
2156 s->size += GOT_ENTRY_SIZE;
69fc87f1 2157 if (*local_tls_type == GOT_TLS_GD)
eea6121a 2158 s->size += GOT_ENTRY_SIZE;
0e1862bb 2159 if (bfd_link_pic (info))
eea6121a 2160 srela->size += sizeof (Elf32_External_Rela);
a85d7ed0
NC		 2161 }
2162 else
0451c93c
MS		 2163 *local_got = (bfd_vma) -1;
2164 }
470b557a
AK		 2165 local_plt = elf_s390_local_plt (ibfd);
2166 for (i = 0; i < symtab_hdr->sh_info; i++)
2167 {
2168 if (local_plt[i].plt.refcount > 0)
2169 {
2170 local_plt[i].plt.offset = htab->elf.iplt->size;
2171 htab->elf.iplt->size += PLT_ENTRY_SIZE;
2172 htab->elf.igotplt->size += GOT_ENTRY_SIZE;
2173 htab->elf.irelplt->size += RELA_ENTRY_SIZE;
2174 }
2175 else
2176 local_plt[i].plt.offset = (bfd_vma) -1;
2177 }
0451c93c
MS		 2178 }
2179
69fc87f1
MS		 2180 if (htab->tls_ldm_got.refcount > 0)
2181 {
2182 /* Allocate 2 got entries and 1 dynamic reloc for R_390_TLS_LDM32
2183 relocs. */
f41345a7
AK		 2184 htab->tls_ldm_got.offset = htab->elf.sgot->size;
2185 htab->elf.sgot->size += 2 * GOT_ENTRY_SIZE;
2186 htab->elf.srelgot->size += sizeof (Elf32_External_Rela);
69fc87f1
MS		 2187 }
2188 else
2189 htab->tls_ldm_got.offset = -1;
2190
0451c93c
MS		 2191 /* Allocate global sym .plt and .got entries, and space for global
2192 sym dynamic relocs. */
2c3fc389 2193 elf_link_hash_traverse (&htab->elf, allocate_dynrelocs, info);
0451c93c
MS		 2194
2195 /* We now have determined the sizes of the various dynamic sections.
2196 Allocate memory for them. */
b34976b6 2197 relocs = FALSE;
0451c93c
MS		 2198 for (s = dynobj->sections; s != NULL; s = s->next)
2199 {
2200 if ((s->flags & SEC_LINKER_CREATED) == 0)
2201 continue;
2202
f41345a7
AK		 2203 if (s == htab->elf.splt
2204 || s == htab->elf.sgot
2205 || s == htab->elf.sgotplt
470b557a
AK		 2206 || s == htab->sdynbss
2207 || s == htab->elf.iplt
2208 || s == htab->elf.igotplt
2209 || s == htab->irelifunc)
0451c93c
MS		 2210 {
2211 /* Strip this section if we don't need it; see the
2212 comment below. */
a85d7ed0 2213 }
0112cd26 2214 else if (CONST_STRNEQ (bfd_get_section_name (dynobj, s), ".rela"))
0451c93c 2215 {
eea6121a 2216 if (s->size != 0)
b34976b6 2217 relocs = TRUE;
ec338859 2218
0451c93c
MS		 2219 /* We use the reloc_count field as a counter if we need
2220 to copy relocs into the output file. */
2221 s->reloc_count = 0;
2222 }
2223 else
a85d7ed0
NC		 2224 {
2225 /* It's not one of our sections, so don't allocate space. */
2226 continue;
2227 }
2228
eea6121a 2229 if (s->size == 0)
a85d7ed0 2230 {
0451c93c
MS		 2231 /* If we don't need this section, strip it from the
2232 output file. This is to handle .rela.bss and
2233 .rela.plt. We must create it in
2234 create_dynamic_sections, because it must be created
2235 before the linker maps input sections to output
2236 sections. The linker does that before
2237 adjust_dynamic_symbol is called, and it is that
2238 function which decides whether anything needs to go
2239 into these sections. */
2240
8423293d 2241 s->flags |= SEC_EXCLUDE;
a85d7ed0
NC		 2242 continue;
2243 }
2244
c456f082
AM		 2245 if ((s->flags & SEC_HAS_CONTENTS) == 0)
2246 continue;
2247
0451c93c
MS		 2248 /* Allocate memory for the section contents. We use bfd_zalloc
2249 here in case unused entries are not reclaimed before the
2250 section's contents are written out. This should not happen,
2251 but this way if it does, we get a R_390_NONE reloc instead
2252 of garbage. */
eea6121a 2253 s->contents = (bfd_byte *) bfd_zalloc (dynobj, s->size);
0451c93c 2254 if (s->contents == NULL)
b34976b6 2255 return FALSE;
a85d7ed0 2256 }
ec338859 2257
0451c93c 2258 if (htab->elf.dynamic_sections_created)
a85d7ed0
NC		 2259 {
2260 /* Add some entries to the .dynamic section. We fill in the
2261 values later, in elf_s390_finish_dynamic_sections, but we
2262 must add the entries now so that we get the correct size for
2263 the .dynamic section. The DT_DEBUG entry is filled in by the
2264 dynamic linker and used by the debugger. */
dc810e39 2265#define add_dynamic_entry(TAG, VAL) \
5a580b3a 2266 _bfd_elf_add_dynamic_entry (info, TAG, VAL)
ec338859 2267
0e1862bb 2268 if (bfd_link_executable (info))
a85d7ed0 2269 {
dc810e39 2270 if (!add_dynamic_entry (DT_DEBUG, 0))
b34976b6 2271 return FALSE;
a85d7ed0 2272 }
ec338859 2273
f41345a7 2274 if (htab->elf.splt->size != 0)
a85d7ed0 2275 {
dc810e39
AM		 2276 if (!add_dynamic_entry (DT_PLTGOT, 0)
2277 || !add_dynamic_entry (DT_PLTRELSZ, 0)
2278 || !add_dynamic_entry (DT_PLTREL, DT_RELA)
2279 || !add_dynamic_entry (DT_JMPREL, 0))
b34976b6 2280 return FALSE;
a85d7ed0 2281 }
ec338859 2282
a85d7ed0 2283 if (relocs)
26e41594
AM		 2284 {
2285 if (!add_dynamic_entry (DT_RELA, 0)
2286 || !add_dynamic_entry (DT_RELASZ, 0)
2287 || !add_dynamic_entry (DT_RELAENT, sizeof (Elf32_External_Rela)))
b34976b6 2288 return FALSE;
a85d7ed0 2289
0451c93c
MS		 2290 /* If any dynamic relocs apply to a read-only section,
2291 then we need a DT_TEXTREL entry. */
248866a8 2292 if ((info->flags & DF_TEXTREL) == 0)
2c3fc389 2293 elf_link_hash_traverse (&htab->elf, readonly_dynrelocs, info);
ec338859 2294
0451c93c
MS		 2295 if ((info->flags & DF_TEXTREL) != 0)
2296 {
2297 if (!add_dynamic_entry (DT_TEXTREL, 0))
b34976b6 2298 return FALSE;
0451c93c 2299 }
a85d7ed0
NC		 2300 }
2301 }
dc810e39 2302#undef add_dynamic_entry
ec338859 2303
b34976b6 2304 return TRUE;
a85d7ed0
NC		 2305}
2306
69fc87f1
MS		 2307/* Return the base VMA address which should be subtracted from real addresses
2308 when resolving @dtpoff relocation.
2309 This is PT_TLS segment p_vaddr. */
2310
2311static bfd_vma
2c3fc389 2312dtpoff_base (struct bfd_link_info *info)
69fc87f1 2313{
e1918d23
AM		 2314 /* If tls_sec is NULL, we should have signalled an error already. */
2315 if (elf_hash_table (info)->tls_sec == NULL)
69fc87f1 2316 return 0;
e1918d23 2317 return elf_hash_table (info)->tls_sec->vma;
69fc87f1
MS		 2318}
2319
2320/* Return the relocation value for @tpoff relocation
2321 if STT_TLS virtual address is ADDRESS. */
2322
2323static bfd_vma
2c3fc389 2324tpoff (struct bfd_link_info *info, bfd_vma address)
69fc87f1 2325{
e1918d23 2326 struct elf_link_hash_table *htab = elf_hash_table (info);
69fc87f1 2327
e1918d23
AM		 2328 /* If tls_sec is NULL, we should have signalled an error already. */
2329 if (htab->tls_sec == NULL)
69fc87f1 2330 return 0;
e1918d23 2331 return htab->tls_size + htab->tls_sec->vma - address;
69fc87f1
MS		 2332}
2333
2334/* Complain if TLS instruction relocation is against an invalid
2335 instruction. */
2336
2337static void
2c3fc389
NC		 2338invalid_tls_insn (bfd *input_bfd,
2339 asection *input_section,
2340 Elf_Internal_Rela *rel)
69fc87f1
MS		 2341{
2342 reloc_howto_type *howto;
2343
2344 howto = elf_howto_table + ELF32_R_TYPE (rel->r_info);
2345 (*_bfd_error_handler)
d003868e
AM		 2346 (_("%B(%A+0x%lx): invalid instruction for TLS relocation %s"),
2347 input_bfd,
2348 input_section,
69fc87f1
MS		 2349 (long) rel->r_offset,
2350 howto->name);
77df2968 2351 bfd_set_error (bfd_error_bad_value);
69fc87f1
MS		 2352}
2353
a85d7ed0
NC		 2354/* Relocate a 390 ELF section. */
2355
b34976b6 2356static bfd_boolean
2c3fc389
NC		 2357elf_s390_relocate_section (bfd *output_bfd,
2358 struct bfd_link_info *info,
2359 bfd *input_bfd,
2360 asection *input_section,
2361 bfd_byte *contents,
2362 Elf_Internal_Rela *relocs,
2363 Elf_Internal_Sym *local_syms,
2364 asection **local_sections)
a85d7ed0 2365{
0451c93c 2366 struct elf_s390_link_hash_table *htab;
a85d7ed0
NC		 2367 Elf_Internal_Shdr *symtab_hdr;
2368 struct elf_link_hash_entry **sym_hashes;
2369 bfd_vma *local_got_offsets;
a85d7ed0
NC		 2370 Elf_Internal_Rela *rel;
2371 Elf_Internal_Rela *relend;
2372
0ffa91dd
NC		 2373 BFD_ASSERT (is_s390_elf (input_bfd));
2374
0451c93c 2375 htab = elf_s390_hash_table (info);
0ffa91dd 2376 symtab_hdr = &elf_symtab_hdr (input_bfd);
a85d7ed0
NC		 2377 sym_hashes = elf_sym_hashes (input_bfd);
2378 local_got_offsets = elf_local_got_offsets (input_bfd);
2379
a85d7ed0
NC		 2380 rel = relocs;
2381 relend = relocs + input_section->reloc_count;
2382 for (; rel < relend; rel++)
2383 {
5236c819 2384 unsigned int r_type;
a85d7ed0
NC		 2385 reloc_howto_type *howto;
2386 unsigned long r_symndx;
2387 struct elf_link_hash_entry *h;
2388 Elf_Internal_Sym *sym;
2389 asection *sec;
0451c93c 2390 bfd_vma off;
a85d7ed0 2391 bfd_vma relocation;
b34976b6 2392 bfd_boolean unresolved_reloc;
a85d7ed0 2393 bfd_reloc_status_type r;
69fc87f1 2394 int tls_type;
470b557a 2395 asection *base_got = htab->elf.sgot;
ec338859 2396
a85d7ed0
NC		 2397 r_type = ELF32_R_TYPE (rel->r_info);
2398 if (r_type == (int) R_390_GNU_VTINHERIT
26e41594
AM		 2399 || r_type == (int) R_390_GNU_VTENTRY)
2400 continue;
5236c819 2401 if (r_type >= (int) R_390_max)
a85d7ed0
NC		 2402 {
2403 bfd_set_error (bfd_error_bad_value);
b34976b6 2404 return FALSE;
a85d7ed0 2405 }
ec338859 2406
b491616a 2407 howto = elf_howto_table + r_type;
a85d7ed0 2408 r_symndx = ELF32_R_SYM (rel->r_info);
5236c819 2409
a85d7ed0
NC		 2410 h = NULL;
2411 sym = NULL;
2412 sec = NULL;
b34976b6 2413 unresolved_reloc = FALSE;
a85d7ed0
NC		 2414 if (r_symndx < symtab_hdr->sh_info)
2415 {
2416 sym = local_syms + r_symndx;
2417 sec = local_sections[r_symndx];
470b557a
AK		 2418 if (ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC)
2419 {
2420 struct plt_entry *local_plt = elf_s390_local_plt (input_bfd);
2421 if (local_plt == NULL)
2422 return FALSE;
2423
2424 /* Address of the PLT slot. */
2425 relocation = (htab->elf.iplt->output_section->vma
2426 + htab->elf.iplt->output_offset
2427 + local_plt[r_symndx].plt.offset);
2428
2429 switch (r_type)
2430 {
31db78f6
AK		 2431 case R_390_PLTOFF16:
2432 case R_390_PLTOFF32:
2433 relocation -= htab->elf.sgot->output_section->vma;
2434 break;
470b557a
AK		 2435 case R_390_GOTPLT12:
2436 case R_390_GOTPLT16:
2437 case R_390_GOTPLT20:
2438 case R_390_GOTPLT32:
2439 case R_390_GOTPLTENT:
2440 case R_390_GOT12:
2441 case R_390_GOT16:
2442 case R_390_GOT20:
2443 case R_390_GOT32:
2444 case R_390_GOTENT:
2445 {
2446 /* Write the PLT slot address into the GOT slot. */
2447 bfd_put_32 (output_bfd, relocation,
2448 htab->elf.sgot->contents +
2449 local_got_offsets[r_symndx]);
2450 relocation = (local_got_offsets[r_symndx] +
2451 htab->elf.sgot->output_offset);
2452
2453 if (r_type == R_390_GOTENT || r_type == R_390_GOTPLTENT)
2454 relocation += htab->elf.sgot->output_section->vma;
2455 break;
2456 }
2457 default:
2458 break;
2459 }
2460 /* The output section is needed later in
2461 finish_dynamic_section when creating the dynamic
2462 relocation. */
2463 local_plt[r_symndx].sec = sec;
2464 goto do_relocation;
2465 }
2466 else
2467 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
a85d7ed0
NC		 2468 }
2469 else
2470 {
560e09e9 2471 bfd_boolean warned ATTRIBUTE_UNUSED;
62d887d4 2472 bfd_boolean ignored ATTRIBUTE_UNUSED;
ec338859 2473
b2a8e766
AM		 2474 RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
2475 r_symndx, symtab_hdr, sym_hashes,
2476 h, sec, relocation,
62d887d4 2477 unresolved_reloc, warned, ignored);
a85d7ed0 2478 }
ec338859 2479
dbaa2011 2480 if (sec != NULL && discarded_section (sec))
e4067dbb 2481 RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section,
545fd46b 2482 rel, 1, relend, howto, 0, contents);
ab96bf03 2483
0e1862bb 2484 if (bfd_link_relocatable (info))
ab96bf03
AM		 2485 continue;
2486
a85d7ed0
NC		 2487 switch (r_type)
2488 {
5236c819
MS		 2489 case R_390_GOTPLT12:
2490 case R_390_GOTPLT16:
bd1ea41b 2491 case R_390_GOTPLT20:
5236c819
MS		 2492 case R_390_GOTPLT32:
2493 case R_390_GOTPLTENT:
2494 /* There are three cases for a GOTPLT relocation. 1) The
2495 relocation is against the jump slot entry of a plt that
2496 will get emitted to the output file. 2) The relocation
2497 is against the jump slot of a plt entry that has been
2498 removed. elf_s390_adjust_gotplt has created a GOT entry
2499 as replacement. 3) The relocation is against a local symbol.
2500 Cases 2) and 3) are the same as the GOT relocation code
2501 so we just have to test for case 1 and fall through for
2502 the other two. */
2503 if (h != NULL && h->plt.offset != (bfd_vma) -1)
2504 {
2505 bfd_vma plt_index;
2506
470b557a
AK		 2507 if (s390_is_ifunc_symbol_p (h))
2508 {
2509 plt_index = h->plt.offset / PLT_ENTRY_SIZE;
2510 relocation = (plt_index * GOT_ENTRY_SIZE +
2511 htab->elf.igotplt->output_offset);
2512 if (r_type == R_390_GOTPLTENT)
2513 relocation += htab->elf.igotplt->output_section->vma;
2514 }
2515 else
2516 {
2517 /* Calc. index no.
2518 Current offset - size first entry / entry size. */
2519 plt_index = (h->plt.offset - PLT_FIRST_ENTRY_SIZE) /
2520 PLT_ENTRY_SIZE;
2521
2522 /* Offset in GOT is PLT index plus GOT headers(3)
2523 times 4, addr & GOT addr. */
2524 relocation = (plt_index + 3) * GOT_ENTRY_SIZE;
2525 if (r_type == R_390_GOTPLTENT)
2526 relocation += htab->elf.sgot->output_section->vma;
2527 }
5236c819
MS		 2528 unresolved_reloc = FALSE;
2529
5236c819
MS		 2530 }
2531 /* Fall through. */
2532
26e41594
AM		 2533 case R_390_GOT12:
2534 case R_390_GOT16:
bd1ea41b 2535 case R_390_GOT20:
26e41594 2536 case R_390_GOT32:
befc3abb 2537 case R_390_GOTENT:
26e41594
AM		 2538 /* Relocation is to the entry for this symbol in the global
2539 offset table. */
470b557a 2540 if (base_got == NULL)
0451c93c 2541 abort ();
ec338859 2542
26e41594
AM		 2543 if (h != NULL)
2544 {
b34976b6 2545 bfd_boolean dyn;
ec338859 2546
26e41594 2547 off = h->got.offset;
0451c93c 2548 dyn = htab->elf.dynamic_sections_created;
470b557a
AK		 2549
2550 if (s390_is_ifunc_symbol_p (h))
2551 {
2552 BFD_ASSERT (h->plt.offset != (bfd_vma) -1);
2553 if (off == (bfd_vma)-1)
2554 {
2555 /* No explicit GOT usage so redirect to the
2556 got.iplt slot. */
2557 base_got = htab->elf.igotplt;
2558 off = h->plt.offset / PLT_ENTRY_SIZE * GOT_ENTRY_SIZE;
2559 }
2560 else
2561 {
2562 /* Explicit GOT slots must contain the address
2563 of the PLT slot. This will be handled in
2564 finish_dynamic_symbol. */
2565 }
2566 }
0e1862bb
L		 2567 else if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn,
2568 bfd_link_pic (info),
2569 h)
2570 || (bfd_link_pic (info)
470b557a
AK		 2571 && SYMBOL_REFERENCES_LOCAL (info, h))
2572 || (ELF_ST_VISIBILITY (h->other)
2573 && h->root.type == bfd_link_hash_undefweak))
2574
26e41594
AM		 2575 {
2576 /* This is actually a static link, or it is a
2577 -Bsymbolic link and the symbol is defined
2578 locally, or the symbol was forced to be local
2579 because of a version file. We must initialize
2580 this entry in the global offset table. Since the
2581 offset must always be a multiple of 2, we use the
2582 least significant bit to record whether we have
2583 initialized it already.
2584
2585 When doing a dynamic link, we create a .rel.got
2586 relocation entry to initialize the value. This
2587 is done in the finish_dynamic_symbol routine. */
2588 if ((off & 1) != 0)
2589 off &= ~1;
2590 else
2591 {
a85d7ed0 2592 bfd_put_32 (output_bfd, relocation,
470b557a 2593 base_got->contents + off);
26e41594
AM		 2594 h->got.offset |= 1;
2595 }
a63cc5f7
AK		 2596
2597 if ((h->def_regular
0e1862bb 2598 && bfd_link_pic (info)
a63cc5f7
AK		 2599 && SYMBOL_REFERENCES_LOCAL (info, h))
2600 /* lrl rx,sym@GOTENT -> larl rx, sym */
2601 && ((r_type == R_390_GOTENT
2602 && (bfd_get_16 (input_bfd,
2603 contents + rel->r_offset - 2)
2604 & 0xff0f) == 0xc40d)
2605 /* ly rx, sym@GOT(r12) -> larl rx, sym */
2606 || (r_type == R_390_GOT20
2607 && (bfd_get_32 (input_bfd,
2608 contents + rel->r_offset - 2)
2609 & 0xff00f000) == 0xe300c000
2610 && bfd_get_8 (input_bfd,
2611 contents + rel->r_offset + 3) == 0x58)))
2612 {
2613 unsigned short new_insn =
2614 (0xc000 | (bfd_get_8 (input_bfd,
2615 contents + rel->r_offset - 1) & 0xf0));
2616 bfd_put_16 (output_bfd, new_insn,
2617 contents + rel->r_offset - 2);
2618 r_type = R_390_PC32DBL;
2619 rel->r_addend = 2;
2620 howto = elf_howto_table + r_type;
2621 relocation = h->root.u.def.value
2622 + h->root.u.def.section->output_section->vma
2623 + h->root.u.def.section->output_offset;
2624 goto do_relocation;
2625 }
26e41594 2626 }
0451c93c 2627 else
b34976b6 2628 unresolved_reloc = FALSE;
26e41594
AM		 2629 }
2630 else
2631 {
0451c93c
MS		 2632 if (local_got_offsets == NULL)
2633 abort ();
a85d7ed0 2634
26e41594 2635 off = local_got_offsets[r_symndx];
a85d7ed0 2636
26e41594
AM		 2637 /* The offset must always be a multiple of 4. We use
2638 the least significant bit to record whether we have
2639 already generated the necessary reloc. */
2640 if ((off & 1) != 0)
2641 off &= ~1;
2642 else
2643 {
2644 bfd_put_32 (output_bfd, relocation,
f41345a7 2645 htab->elf.sgot->contents + off);
a85d7ed0 2646
0e1862bb 2647 if (bfd_link_pic (info))
26e41594
AM		 2648 {
2649 asection *srelgot;
2650 Elf_Internal_Rela outrel;
947216bf 2651 bfd_byte *loc;
a85d7ed0 2652
f41345a7 2653 srelgot = htab->elf.srelgot;
0451c93c
MS		 2654 if (srelgot == NULL)
2655 abort ();
a85d7ed0 2656
f41345a7
AK		 2657 outrel.r_offset = (htab->elf.sgot->output_section->vma
2658 + htab->elf.sgot->output_offset
26e41594
AM		 2659 + off);
2660 outrel.r_info = ELF32_R_INFO (0, R_390_RELATIVE);
a85d7ed0 2661 outrel.r_addend = relocation;
947216bf
AM		 2662 loc = srelgot->contents;
2663 loc += srelgot->reloc_count++ * sizeof (Elf32_External_Rela);
26e41594
AM		 2664 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
2665 }
a85d7ed0 2666
26e41594
AM		 2667 local_got_offsets[r_symndx] |= 1;
2668 }
2669 }
a85d7ed0 2670
0451c93c
MS		 2671 if (off >= (bfd_vma) -2)
2672 abort ();
a85d7ed0 2673
470b557a 2674 relocation = base_got->output_offset + off;
befc3abb 2675
ae9a127f
NC		 2676 /* For @GOTENT the relocation is against the offset between
2677 the instruction and the symbols entry in the GOT and not
2678 between the start of the GOT and the symbols entry. We
2679 add the vma of the GOT to get the correct value. */
5236c819
MS		 2680 if ( r_type == R_390_GOTENT
2681 || r_type == R_390_GOTPLTENT)
470b557a 2682 relocation += base_got->output_section->vma;
befc3abb 2683
26e41594 2684 break;
dc810e39 2685
5236c819 2686 case R_390_GOTOFF16:
26e41594
AM		 2687 case R_390_GOTOFF32:
2688 /* Relocation is relative to the start of the global offset
2689 table. */
2690
01a53584
AK		 2691 if (h != NULL
2692 && s390_is_ifunc_symbol_p (h)
2693 && h->def_regular
2694 && !bfd_link_executable (info))
2695 {
2696 relocation = (htab->elf.iplt->output_section->vma
2697 + htab->elf.iplt->output_offset
2698 + h->plt.offset
2699 - htab->elf.sgot->output_section->vma);
2700 goto do_relocation;
2701 }
2702
26e41594
AM		 2703 /* Note that sgot->output_offset is not involved in this
2704 calculation. We always want the start of .got. If we
2705 defined _GLOBAL_OFFSET_TABLE in a different way, as is
2706 permitted by the ABI, we might have to change this
2707 calculation. */
f41345a7 2708 relocation -= htab->elf.sgot->output_section->vma;
26e41594
AM		 2709 break;
2710
2711 case R_390_GOTPC:
befc3abb 2712 case R_390_GOTPCDBL:
26e41594 2713 /* Use global offset table as symbol value. */
f41345a7 2714 relocation = htab->elf.sgot->output_section->vma;
b34976b6 2715 unresolved_reloc = FALSE;
26e41594 2716 break;
a85d7ed0 2717
fb798c50 2718 case R_390_PLT12DBL:
26e41594 2719 case R_390_PLT16DBL:
fb798c50 2720 case R_390_PLT24DBL:
26e41594
AM		 2721 case R_390_PLT32DBL:
2722 case R_390_PLT32:
2723 /* Relocation is to the entry for this symbol in the
2724 procedure linkage table. */
a85d7ed0 2725
26e41594
AM		 2726 /* Resolve a PLT32 reloc against a local symbol directly,
2727 without using the procedure linkage table. */
2728 if (h == NULL)
2729 break;
a85d7ed0 2730
26e41594 2731 if (h->plt.offset == (bfd_vma) -1
470b557a 2732 || (htab->elf.splt == NULL && htab->elf.iplt == NULL))
26e41594
AM		 2733 {
2734 /* We didn't make a PLT entry for this symbol. This
2735 happens when statically linking PIC code, or when
2736 using -Bsymbolic. */
2737 break;
2738 }
2739
470b557a
AK		 2740 if (s390_is_ifunc_symbol_p (h))
2741 relocation = (htab->elf.iplt->output_section->vma
2742 + htab->elf.iplt->output_offset
2743 + h->plt.offset);
2744 else
2745 relocation = (htab->elf.splt->output_section->vma
2746 + htab->elf.splt->output_offset
2747 + h->plt.offset);
b34976b6 2748 unresolved_reloc = FALSE;
26e41594 2749 break;
a85d7ed0 2750
5236c819
MS		 2751 case R_390_PLTOFF16:
2752 case R_390_PLTOFF32:
26e41594
AM		 2753 /* Relocation is to the entry for this symbol in the
2754 procedure linkage table relative to the start of the GOT. */
5236c819
MS		 2755
2756 /* For local symbols or if we didn't make a PLT entry for
2757 this symbol resolve the symbol directly. */
31db78f6 2758 if (h == NULL
5236c819 2759 || h->plt.offset == (bfd_vma) -1
31db78f6 2760 || (htab->elf.splt == NULL && !s390_is_ifunc_symbol_p (h)))
5236c819 2761 {
f41345a7 2762 relocation -= htab->elf.sgot->output_section->vma;
5236c819
MS		 2763 break;
2764 }
2765
470b557a
AK		 2766 if (s390_is_ifunc_symbol_p (h))
2767 relocation = (htab->elf.iplt->output_section->vma
2768 + htab->elf.iplt->output_offset
2769 + h->plt.offset
2770 - htab->elf.sgot->output_section->vma);
2771 else
2772 relocation = (htab->elf.splt->output_section->vma
2773 + htab->elf.splt->output_offset
2774 + h->plt.offset
2775 - htab->elf.sgot->output_section->vma);
5236c819 2776 unresolved_reloc = FALSE;
26e41594
AM		 2777 break;
2778
26e41594 2779 case R_390_PC16:
fb798c50 2780 case R_390_PC12DBL:
26e41594 2781 case R_390_PC16DBL:
fb798c50 2782 case R_390_PC24DBL:
26e41594
AM		 2783 case R_390_PC32DBL:
2784 case R_390_PC32:
99ba5125
AK		 2785 if (h != NULL
2786 && s390_is_ifunc_symbol_p (h)
2787 && h->def_regular
2788 && !bfd_link_executable (info))
2789 {
2790 /* This will not work our if the function does not
2791 happen to set up the GOT pointer for some other
2792 reason. 31 bit PLT entries require r12 to hold the
2793 GOT pointer.
2794 FIXME: Implement an errorcheck.
2795 NOTE: It will work when brasl is not available
2796 (e.g. with -m31 -march=g5) since a local function
2797 call then does use GOTOFF which implies r12 being set
2798 up. */
2799 relocation = (htab->elf.iplt->output_section->vma
2800 + htab->elf.iplt->output_offset
2801 + h ->plt.offset);
2802 goto do_relocation;
2803 }
2804
2805 case R_390_8:
2806 case R_390_16:
2807 case R_390_32:
470b557a
AK		 2808 if (h != NULL
2809 && s390_is_ifunc_symbol_p (h)
2810 && h->def_regular)
2811 {
0e1862bb 2812 if (!bfd_link_pic (info) || !h->non_got_ref)
470b557a
AK		 2813 {
2814 /* For a non-shared object STT_GNU_IFUNC symbol must
2815 go through PLT. */
2816 relocation = (htab->elf.iplt->output_section->vma
2817 + htab->elf.iplt->output_offset
2818 + h ->plt.offset);
2819 goto do_relocation;
2820 }
2821 else
2822 {
2823 /* For shared objects a runtime relocation is needed. */
2824
2825 Elf_Internal_Rela outrel;
2826 asection *sreloc;
2827
2828 /* Need a dynamic relocation to get the real function
2829 address. */
2830 outrel.r_offset = _bfd_elf_section_offset (output_bfd,
2831 info,
2832 input_section,
2833 rel->r_offset);
2834 if (outrel.r_offset == (bfd_vma) -1
2835 || outrel.r_offset == (bfd_vma) -2)
2836 abort ();
2837
2838 outrel.r_offset += (input_section->output_section->vma
2839 + input_section->output_offset);
2840
2841 if (h->dynindx == -1
2842 || h->forced_local
0e1862bb 2843 || bfd_link_executable (info))
470b557a
AK		 2844 {
2845 /* This symbol is resolved locally. */
2846 outrel.r_info = ELF32_R_INFO (0, R_390_IRELATIVE);
2847 outrel.r_addend = (h->root.u.def.value
2848 + h->root.u.def.section->output_section->vma
2849 + h->root.u.def.section->output_offset);
2850 }
2851 else
2852 {
2853 outrel.r_info = ELF32_R_INFO (h->dynindx, r_type);
2854 outrel.r_addend = 0;
2855 }
2856
2857 sreloc = htab->elf.irelifunc;
2858 elf_append_rela (output_bfd, sreloc, &outrel);
2859
2860 /* If this reloc is against an external symbol, we
2861 do not want to fiddle with the addend. Otherwise,
2862 we need to include the symbol value so that it
2863 becomes an addend for the dynamic reloc. For an
2864 internal symbol, we have updated addend. */
2865 continue;
2866 }
2867 }
2868
b1e24c02 2869 if ((input_section->flags & SEC_ALLOC) == 0)
ec338859
AM		 2870 break;
2871
0e1862bb 2872 if ((bfd_link_pic (info)
82058a73
MS		 2873 && (h == NULL
2874 || ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
2875 || h->root.type != bfd_link_hash_undefweak)
0451c93c 2876 && ((r_type != R_390_PC16
fb798c50 2877 && r_type != R_390_PC12DBL
0451c93c 2878 && r_type != R_390_PC16DBL
fb798c50 2879 && r_type != R_390_PC24DBL
befc3abb 2880 && r_type != R_390_PC32DBL
0451c93c 2881 && r_type != R_390_PC32)
8c21ca21 2882 || !SYMBOL_CALLS_LOCAL (info, h)))
64285810 2883 || (ELIMINATE_COPY_RELOCS
0e1862bb 2884 && !bfd_link_pic (info)
0451c93c
MS		 2885 && h != NULL
2886 && h->dynindx != -1
f5385ebf
AM		 2887 && !h->non_got_ref
2888 && ((h->def_dynamic
2889 && !h->def_regular)
0451c93c
MS		 2890 || h->root.type == bfd_link_hash_undefweak
2891 || h->root.type == bfd_link_hash_undefined)))
26e41594
AM		 2892 {
2893 Elf_Internal_Rela outrel;
2894 bfd_boolean skip, relocate;
0451c93c 2895 asection *sreloc;
947216bf 2896 bfd_byte *loc;
ec338859 2897
0451c93c
MS		 2898 /* When generating a shared object, these relocations
2899 are copied into the output file to be resolved at run
2900 time. */
ec338859 2901
26e41594
AM		 2902 skip = FALSE;
2903 relocate = FALSE;
ec338859 2904
c629eae0
JJ		 2905 outrel.r_offset =
2906 _bfd_elf_section_offset (output_bfd, info, input_section,
2907 rel->r_offset);
2908 if (outrel.r_offset == (bfd_vma) -1)
b34976b6 2909 skip = TRUE;
0bb2d96a 2910 else if (outrel.r_offset == (bfd_vma) -2)
b34976b6 2911 skip = TRUE, relocate = TRUE;
26e41594
AM		 2912 outrel.r_offset += (input_section->output_section->vma
2913 + input_section->output_offset);
ec338859 2914
26e41594 2915 if (skip)
0bb2d96a 2916 memset (&outrel, 0, sizeof outrel);
26e41594 2917 else if (h != NULL
0451c93c
MS		 2918 && h->dynindx != -1
2919 && (r_type == R_390_PC16
fb798c50 2920 || r_type == R_390_PC12DBL
0451c93c 2921 || r_type == R_390_PC16DBL
fb798c50 2922 || r_type == R_390_PC24DBL
befc3abb 2923 || r_type == R_390_PC32DBL
0451c93c 2924 || r_type == R_390_PC32
0e1862bb 2925 || !bfd_link_pic (info)
8c21ca21 2926 || !SYMBOLIC_BIND (info, h)
f5385ebf 2927 || !h->def_regular))
26e41594
AM		 2928 {
2929 outrel.r_info = ELF32_R_INFO (h->dynindx, r_type);
27018c3f 2930 outrel.r_addend = rel->r_addend;
26e41594
AM		 2931 }
2932 else
2933 {
0451c93c 2934 /* This symbol is local, or marked to become local. */
90ced0dd 2935 outrel.r_addend = relocation + rel->r_addend;
b5727d75
MS		 2936 if (r_type == R_390_32)
2937 {
2938 relocate = TRUE;
2939 outrel.r_info = ELF32_R_INFO (0, R_390_RELATIVE);
b5727d75
MS		 2940 }
2941 else
2942 {
2943 long sindx;
2944
90ced0dd 2945 if (bfd_is_abs_section (sec))
b5727d75
MS		 2946 sindx = 0;
2947 else if (sec == NULL || sec->owner == NULL)
2948 {
2949 bfd_set_error(bfd_error_bad_value);
2950 return FALSE;
2951 }
2952 else
2953 {
2954 asection *osec;
2955
2956 osec = sec->output_section;
2957 sindx = elf_section_data (osec)->dynindx;
74541ad4
AM		 2958 if (sindx == 0)
2959 {
2960 osec = htab->elf.text_index_section;
2961 sindx = elf_section_data (osec)->dynindx;
2962 }
2963 BFD_ASSERT (sindx != 0);
90ced0dd
MS		 2964
2965 /* We are turning this relocation into one
2966 against a section symbol, so subtract out
2967 the output section's address but not the
2968 offset of the input section in the output
2969 section. */
90ced0dd 2970 outrel.r_addend -= osec->vma;
b5727d75
MS		 2971 }
2972 outrel.r_info = ELF32_R_INFO (sindx, r_type);
b5727d75 2973 }
26e41594 2974 }
ec338859 2975
0451c93c
MS		 2976 sreloc = elf_section_data (input_section)->sreloc;
2977 if (sreloc == NULL)
2978 abort ();
ec338859 2979
947216bf
AM		 2980 loc = sreloc->contents;
2981 loc += sreloc->reloc_count++ * sizeof (Elf32_External_Rela);
0451c93c 2982 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
ec338859 2983
26e41594
AM		 2984 /* If this reloc is against an external symbol, we do
2985 not want to fiddle with the addend. Otherwise, we
2986 need to include the symbol value so that it becomes
2987 an addend for the dynamic reloc. */
2988 if (! relocate)
2989 continue;
2990 }
0451c93c 2991 break;
ec338859 2992
69fc87f1
MS		 2993 /* Relocations for tls literal pool entries. */
2994 case R_390_TLS_IE32:
0e1862bb 2995 if (bfd_link_pic (info))
69fc87f1
MS		 2996 {
2997 Elf_Internal_Rela outrel;
2998 asection *sreloc;
2999 bfd_byte *loc;
3000
3001 outrel.r_offset = rel->r_offset
3002 + input_section->output_section->vma
3003 + input_section->output_offset;
3004 outrel.r_info = ELF32_R_INFO (0, R_390_RELATIVE);
3005 sreloc = elf_section_data (input_section)->sreloc;
3006 if (sreloc == NULL)
3007 abort ();
3008 loc = sreloc->contents;
3009 loc += sreloc->reloc_count++ * sizeof (Elf32_External_Rela);
3010 bfd_elf32_swap_reloc_out (output_bfd, &outrel, loc);
3011 }
ae9a127f 3012 /* Fall through. */
69fc87f1
MS		 3013
3014 case R_390_TLS_GD32:
3015 case R_390_TLS_GOTIE32:
3016 r_type = elf_s390_tls_transition (info, r_type, h == NULL);
3017 tls_type = GOT_UNKNOWN;
3018 if (h == NULL && local_got_offsets)
3019 tls_type = elf_s390_local_got_tls_type (input_bfd) [r_symndx];
3020 else if (h != NULL)
3021 {
3022 tls_type = elf_s390_hash_entry(h)->tls_type;
0e1862bb
L		 3023 if (!bfd_link_pic (info)
3024 && h->dynindx == -1
3025 && tls_type >= GOT_TLS_IE)
69fc87f1
MS		 3026 r_type = R_390_TLS_LE32;
3027 }
3028 if (r_type == R_390_TLS_GD32 && tls_type >= GOT_TLS_IE)
3029 r_type = R_390_TLS_IE32;
3030
3031 if (r_type == R_390_TLS_LE32)
3032 {
3033 /* This relocation gets optimized away by the local exec
3034 access optimization. */
3035 BFD_ASSERT (! unresolved_reloc);
3036 bfd_put_32 (output_bfd, -tpoff (info, relocation),
3037 contents + rel->r_offset);
3038 continue;
3039 }
3040
f41345a7 3041 if (htab->elf.sgot == NULL)
69fc87f1
MS		 3042 abort ();
3043
3044 if (h != NULL)
3045 off = h->got.offset;
3046 else
3047 {
3048 if (local_got_offsets == NULL)
3049 abort ();
3050
3051 off = local_got_offsets[r_symndx];
3052 }
3053
3054 emit_tls_relocs:
3055
3056 if ((off & 1) != 0)
3057 off &= ~1;
26e41594 3058 else
69fc87f1
MS		 3059 {
3060 Elf_Internal_Rela outrel;
3061 bfd_byte *loc;
3062 int dr_type, indx;
3063
f41345a7 3064 if (htab->elf.srelgot == NULL)
69fc87f1
MS		 3065 abort ();
3066
f41345a7
AK		 3067 outrel.r_offset = (htab->elf.sgot->output_section->vma
3068 + htab->elf.sgot->output_offset + off);
69fc87f1
MS		 3069
3070 indx = h && h->dynindx != -1 ? h->dynindx : 0;
3071 if (r_type == R_390_TLS_GD32)
3072 dr_type = R_390_TLS_DTPMOD;
3073 else
3074 dr_type = R_390_TLS_TPOFF;
3075 if (dr_type == R_390_TLS_TPOFF && indx == 0)
3076 outrel.r_addend = relocation - dtpoff_base (info);
3077 else
3078 outrel.r_addend = 0;
3079 outrel.r_info = ELF32_R_INFO (indx, dr_type);
f41345a7
AK		 3080 loc = htab->elf.srelgot->contents;
3081 loc += htab->elf.srelgot->reloc_count++
69fc87f1
MS		 3082 * sizeof (Elf32_External_Rela);
3083 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
3084
3085 if (r_type == R_390_TLS_GD32)
3086 {
3087 if (indx == 0)
3088 {
26e41594 3089 BFD_ASSERT (! unresolved_reloc);
69fc87f1
MS		 3090 bfd_put_32 (output_bfd,
3091 relocation - dtpoff_base (info),
f41345a7 3092 htab->elf.sgot->contents + off + GOT_ENTRY_SIZE);
69fc87f1
MS		 3093 }
3094 else
3095 {
3096 outrel.r_info = ELF32_R_INFO (indx, R_390_TLS_DTPOFF);
3097 outrel.r_offset += GOT_ENTRY_SIZE;
3098 outrel.r_addend = 0;
f41345a7 3099 htab->elf.srelgot->reloc_count++;
69fc87f1
MS		 3100 loc += sizeof (Elf32_External_Rela);
3101 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
3102 }
3103 }
3104
3105 if (h != NULL)
3106 h->got.offset |= 1;
3107 else
3108 local_got_offsets[r_symndx] |= 1;
3109 }
3110
3111 if (off >= (bfd_vma) -2)
3112 abort ();
3113 if (r_type == ELF32_R_TYPE (rel->r_info))
3114 {
f41345a7 3115 relocation = htab->elf.sgot->output_offset + off;
69fc87f1 3116 if (r_type == R_390_TLS_IE32 || r_type == R_390_TLS_IEENT)
f41345a7 3117 relocation += htab->elf.sgot->output_section->vma;
69fc87f1
MS		 3118 unresolved_reloc = FALSE;
3119 }
3120 else
3121 {
f41345a7 3122 bfd_put_32 (output_bfd, htab->elf.sgot->output_offset + off,
69fc87f1
MS		 3123 contents + rel->r_offset);
3124 continue;
3125 }
3126 break;
3127
3128 case R_390_TLS_GOTIE12:
bd1ea41b 3129 case R_390_TLS_GOTIE20:
69fc87f1
MS		 3130 case R_390_TLS_IEENT:
3131 if (h == NULL)
3132 {
3133 if (local_got_offsets == NULL)
3134 abort();
3135 off = local_got_offsets[r_symndx];
0e1862bb 3136 if (bfd_link_pic (info))
69fc87f1
MS		 3137 goto emit_tls_relocs;
3138 }
3139 else
3140 {
3141 off = h->got.offset;
3142 tls_type = elf_s390_hash_entry(h)->tls_type;
0e1862bb
L		 3143 if (bfd_link_pic (info)
3144 || h->dynindx != -1
3145 || tls_type < GOT_TLS_IE)
69fc87f1
MS		 3146 goto emit_tls_relocs;
3147 }
3148
f41345a7 3149 if (htab->elf.sgot == NULL)
69fc87f1
MS		 3150 abort ();
3151
3152 BFD_ASSERT (! unresolved_reloc);
3153 bfd_put_32 (output_bfd, -tpoff (info, relocation),
f41345a7
AK		 3154 htab->elf.sgot->contents + off);
3155 relocation = htab->elf.sgot->output_offset + off;
69fc87f1 3156 if (r_type == R_390_TLS_IEENT)
f41345a7 3157 relocation += htab->elf.sgot->output_section->vma;
69fc87f1
MS		 3158 unresolved_reloc = FALSE;
3159 break;
3160
3161 case R_390_TLS_LDM32:
0e1862bb 3162 if (! bfd_link_pic (info))
69fc87f1
MS		 3163 /* The literal pool entry this relocation refers to gets ignored
3164 by the optimized code of the local exec model. Do nothing
3165 and the value will turn out zero. */
3166 continue;
3167
f41345a7 3168 if (htab->elf.sgot == NULL)
69fc87f1
MS		 3169 abort ();
3170
3171 off = htab->tls_ldm_got.offset;
3172 if (off & 1)
3173 off &= ~1;
3174 else
3175 {
3176 Elf_Internal_Rela outrel;
3177 bfd_byte *loc;
3178
f41345a7 3179 if (htab->elf.srelgot == NULL)
69fc87f1
MS		 3180 abort ();
3181
f41345a7
AK		 3182 outrel.r_offset = (htab->elf.sgot->output_section->vma
3183 + htab->elf.sgot->output_offset + off);
69fc87f1
MS		 3184
3185 bfd_put_32 (output_bfd, 0,
f41345a7 3186 htab->elf.sgot->contents + off + GOT_ENTRY_SIZE);
69fc87f1
MS		 3187 outrel.r_info = ELF32_R_INFO (0, R_390_TLS_DTPMOD);
3188 outrel.r_addend = 0;
f41345a7
AK		 3189 loc = htab->elf.srelgot->contents;
3190 loc += htab->elf.srelgot->reloc_count++
69fc87f1
MS		 3191 * sizeof (Elf32_External_Rela);
3192 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
3193 htab->tls_ldm_got.offset |= 1;
3194 }
f41345a7 3195 relocation = htab->elf.sgot->output_offset + off;
26e41594 3196 unresolved_reloc = FALSE;
69fc87f1
MS		 3197 break;
3198
3199 case R_390_TLS_LE32:
3cbc1e5e 3200 if (bfd_link_dll (info))
69fc87f1
MS		 3201 {
3202 /* Linking a shared library with non-fpic code requires
3203 a R_390_TLS_TPOFF relocation. */
3204 Elf_Internal_Rela outrel;
3205 asection *sreloc;
3206 bfd_byte *loc;
3207 int indx;
3208
3209 outrel.r_offset = rel->r_offset
3210 + input_section->output_section->vma
3211 + input_section->output_offset;
3212 if (h != NULL && h->dynindx != -1)
3213 indx = h->dynindx;
3214 else
3215 indx = 0;
3216 outrel.r_info = ELF32_R_INFO (indx, R_390_TLS_TPOFF);
3217 if (indx == 0)
3218 outrel.r_addend = relocation - dtpoff_base (info);
3219 else
3220 outrel.r_addend = 0;
3221 sreloc = elf_section_data (input_section)->sreloc;
3222 if (sreloc == NULL)
3223 abort ();
3224 loc = sreloc->contents;
3225 loc += sreloc->reloc_count++ * sizeof (Elf32_External_Rela);
3226 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
3227 }
3228 else
3229 {
3230 BFD_ASSERT (! unresolved_reloc);
3231 bfd_put_32 (output_bfd, -tpoff (info, relocation),
3232 contents + rel->r_offset);
3233 }
3234 continue;
3235
3236 case R_390_TLS_LDO32:
0e1862bb 3237 if (bfd_link_pic (info) || (input_section->flags & SEC_DEBUGGING))
69fc87f1
MS		 3238 relocation -= dtpoff_base (info);
3239 else
3240 /* When converting LDO to LE, we must negate. */
3241 relocation = -tpoff (info, relocation);
3242 break;
3243
3244 /* Relocations for tls instructions. */
3245 case R_390_TLS_LOAD:
3246 case R_390_TLS_GDCALL:
3247 case R_390_TLS_LDCALL:
3248 tls_type = GOT_UNKNOWN;
3249 if (h == NULL && local_got_offsets)
3250 tls_type = elf_s390_local_got_tls_type (input_bfd) [r_symndx];
3251 else if (h != NULL)
3252 tls_type = elf_s390_hash_entry(h)->tls_type;
3253
3254 if (tls_type == GOT_TLS_GD)
3255 continue;
3256
3257 if (r_type == R_390_TLS_LOAD)
3258 {
0e1862bb 3259 if (!bfd_link_pic (info) && (h == NULL || h->dynindx == -1))
69fc87f1
MS		 3260 {
3261 /* IE->LE transition. Four valid cases:
3262 l %rx,0(0,%ry) -> lr %rx,%ry + bcr 0,0
3263 l %rx,0(%ry,0) -> lr %rx,%ry + bcr 0,0
3264 l %rx,0(%ry,%r12) -> lr %rx,%ry + bcr 0,0
3265 l %rx,0(%r12,%ry) -> lr %rx,%ry + bcr 0,0 */
3266 unsigned int insn, ry;
3267
3268 insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3269 ry = 0;
3270 if ((insn & 0xff00f000) == 0x58000000)
3271 /* l %rx,0(%ry,0) -> lr %rx,%ry + bcr 0,0 */
3272 ry = (insn & 0x000f0000);
3273 else if ((insn & 0xff0f0000) == 0x58000000)
3274 /* l %rx,0(0,%ry) -> lr %rx,%ry + bcr 0,0 */
3275 ry = (insn & 0x0000f000) << 4;
3276 else if ((insn & 0xff00f000) == 0x5800c000)
3277 /* l %rx,0(%ry,%r12) -> lr %rx,%ry + bcr 0,0 */
3278 ry = (insn & 0x000f0000);
3279 else if ((insn & 0xff0f0000) == 0x580c0000)
3280 /* l %rx,0(%r12,%ry) -> lr %rx,%ry + bcr 0,0 */
3281 ry = (insn & 0x0000f000) << 4;
3282 else
3283 invalid_tls_insn (input_bfd, input_section, rel);
3284 insn = 0x18000700 | (insn & 0x00f00000) | ry;
3285 bfd_put_32 (output_bfd, insn, contents + rel->r_offset);
3286 }
3287 }
3288 else if (r_type == R_390_TLS_GDCALL)
3289 {
3290 unsigned int insn;
3291
3292 insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
77df2968 3293 if ((insn & 0xff000fff) != 0x4d000000 &&
d0ddfe27
AK		 3294 (insn & 0xffff0000) != 0xc0e50000 &&
3295 (insn & 0xff000000) != 0x0d000000)
69fc87f1 3296 invalid_tls_insn (input_bfd, input_section, rel);
0e1862bb 3297 if (!bfd_link_pic (info) && (h == NULL || h->dynindx == -1))
77df2968 3298 {
d0ddfe27
AK		 3299 if ((insn & 0xff000000) == 0x0d000000)
3300 {
3301 /* GD->LE transition.
3302 basr rx, ry -> nopr r7 */
3303 insn = 0x07070000 | (insn & 0xffff);
3304 }
3305 else if ((insn & 0xff000000) == 0x4d000000)
77df2968
MS		 3306 {
3307 /* GD->LE transition.
3308 bas %r14,0(%rx,%r13) -> bc 0,0 */
3309 insn = 0x47000000;
3310 }
3311 else
3312 {
3313 /* GD->LE transition.
d0ddfe27 3314 brasl %r14,_tls_get_offset@plt -> brcl 0,. */
77df2968
MS		 3315 insn = 0xc0040000;
3316 bfd_put_16 (output_bfd, 0x0000,
3317 contents + rel->r_offset + 4);
3318 }
3319 }
69fc87f1 3320 else
77df2968 3321 {
d0ddfe27
AK		 3322 /* If basr is used in the pic case to invoke
3323 _tls_get_offset, something went wrong before. */
3324 if ((insn & 0xff000000) == 0x0d000000)
3325 invalid_tls_insn (input_bfd, input_section, rel);
3326
77df2968
MS		 3327 if ((insn & 0xff000000) == 0x4d000000)
3328 {
3329 /* GD->IE transition.
3330 bas %r14,0(%rx,%r13) -> l %r2,0(%r2,%r12) */
3331 insn = 0x5822c000;
3332 }
3333 else
3334 {
3335 /* GD->IE transition.
3336 brasl %r14,__tls_get_addr@plt ->
3337 l %r2,0(%r2,%r12) ; bcr 0,0 */
3338 insn = 0x5822c000;
3339 bfd_put_16 (output_bfd, 0x0700,
3340 contents + rel->r_offset + 4);
3341 }
3342 }
69fc87f1
MS		 3343 bfd_put_32 (output_bfd, insn, contents + rel->r_offset);
3344 }
3345 else if (r_type == R_390_TLS_LDCALL)
3346 {
0e1862bb 3347 if (!bfd_link_pic (info))
69fc87f1
MS		 3348 {
3349 unsigned int insn;
3350
3351 insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
77df2968 3352 if ((insn & 0xff000fff) != 0x4d000000 &&
d0ddfe27
AK		 3353 (insn & 0xffff0000) != 0xc0e50000 &&
3354 (insn & 0xff000000) != 0x0d000000)
69fc87f1 3355 invalid_tls_insn (input_bfd, input_section, rel);
d0ddfe27
AK		 3356
3357 if ((insn & 0xff000000) == 0x0d000000)
3358 {
3359 /* LD->LE transition.
3360 basr rx, ry -> nopr r7 */
3361 insn = 0x07070000 | (insn & 0xffff);
3362 }
3363 else if ((insn & 0xff000000) == 0x4d000000)
77df2968
MS		 3364 {
3365 /* LD->LE transition.
3366 bas %r14,0(%rx,%r13) -> bc 0,0 */
3367 insn = 0x47000000;
3368 }
3369 else
3370 {
3371 /* LD->LE transition.
d0ddfe27 3372 brasl %r14,__tls_get_offset@plt -> brcl 0,. */
77df2968
MS		 3373 insn = 0xc0040000;
3374 bfd_put_16 (output_bfd, 0x0000,
3375 contents + rel->r_offset + 4);
3376 }
69fc87f1
MS		 3377 bfd_put_32 (output_bfd, insn, contents + rel->r_offset);
3378 }
3379 }
3380 continue;
3381
0451c93c
MS		 3382 default:
3383 break;
3384 }
ec338859 3385
239e1f3a
AM		 3386 /* Dynamic relocs are not propagated for SEC_DEBUGGING sections
3387 because such sections are not SEC_ALLOC and thus ld.so will
3388 not process them. */
0451c93c 3389 if (unresolved_reloc
239e1f3a 3390 && !((input_section->flags & SEC_DEBUGGING) != 0
1d5316ab
AM		 3391 && h->def_dynamic)
3392 && _bfd_elf_section_offset (output_bfd, info, input_section,
3393 rel->r_offset) != (bfd_vma) -1)
0451c93c 3394 (*_bfd_error_handler)
843fe662 3395 (_("%B(%A+0x%lx): unresolvable %s relocation against symbol `%s'"),
d003868e
AM		 3396 input_bfd,
3397 input_section,
0451c93c 3398 (long) rel->r_offset,
843fe662 3399 howto->name,
0451c93c 3400 h->root.root.string);
ec338859 3401
470b557a
AK		 3402 do_relocation:
3403
fb798c50
AK		 3404 /* When applying a 24 bit reloc we need to start one byte
3405 earlier. Otherwise the 32 bit get/put bfd operations might
3406 access a byte after the actual section. */
3407 if (r_type == R_390_PC24DBL
3408 || r_type == R_390_PLT24DBL)
3409 rel->r_offset--;
3410
bd1ea41b
MS		 3411 if (r_type == R_390_20
3412 || r_type == R_390_GOT20
3413 || r_type == R_390_GOTPLT20
3414 || r_type == R_390_TLS_GOTIE20)
3415 {
3416 relocation += rel->r_addend;
3417 relocation = (relocation&0xfff) << 8 | (relocation&0xff000) >> 12;
3418 r = _bfd_final_link_relocate (howto, input_bfd, input_section,
3419 contents, rel->r_offset,
3420 relocation, 0);
3421 }
3422 else
3423 r = _bfd_final_link_relocate (howto, input_bfd, input_section,
3424 contents, rel->r_offset,
3425 relocation, rel->r_addend);
ec338859 3426
a85d7ed0
NC		 3427 if (r != bfd_reloc_ok)
3428 {
0451c93c 3429 const char *name;
ec338859 3430
0451c93c
MS		 3431 if (h != NULL)
3432 name = h->root.root.string;
3433 else
a85d7ed0 3434 {
0451c93c
MS		 3435 name = bfd_elf_string_from_elf_section (input_bfd,
3436 symtab_hdr->sh_link,
3437 sym->st_name);
3438 if (name == NULL)
b34976b6 3439 return FALSE;
0451c93c
MS		 3440 if (*name == '\0')
3441 name = bfd_section_name (input_bfd, sec);
3442 }
ec338859 3443
0451c93c
MS		 3444 if (r == bfd_reloc_overflow)
3445 {
ec338859 3446
0451c93c 3447 if (! ((*info->callbacks->reloc_overflow)
dfeffb9f
L		 3448 (info, (h ? &h->root : NULL), name, howto->name,
3449 (bfd_vma) 0, input_bfd, input_section,
3450 rel->r_offset)))
b34976b6 3451 return FALSE;
0451c93c
MS		 3452 }
3453 else
3454 {
3455 (*_bfd_error_handler)
d003868e
AM		 3456 (_("%B(%A+0x%lx): reloc against `%s': error %d"),
3457 input_bfd, input_section,
0451c93c 3458 (long) rel->r_offset, name, (int) r);
b34976b6 3459 return FALSE;
a85d7ed0
NC		 3460 }
3461 }
3462 }
ec338859 3463
b34976b6 3464 return TRUE;
a85d7ed0
NC		 3465}
3466
470b557a
AK		 3467/* Generate the PLT slots together with the dynamic relocations needed
3468 for IFUNC symbols. */
3469
3470static void
3471elf_s390_finish_ifunc_symbol (bfd *output_bfd,
3472 struct bfd_link_info *info,
3473 struct elf_link_hash_entry *h,
3474 struct elf_s390_link_hash_table *htab,
3475 bfd_vma iplt_offset,
3476 bfd_vma resolver_address)
3477{
3478 bfd_vma iplt_index;
3479 bfd_vma got_offset;
3480 bfd_vma igotiplt_offset;
3481 Elf_Internal_Rela rela;
3482 bfd_byte *loc;
3483 asection *plt, *gotplt, *relplt;
3484 bfd_vma relative_offset;
3485
3486 if (htab->elf.iplt == NULL
3487 || htab->elf.igotplt == NULL
3488 || htab->elf.irelplt == NULL)
3489 abort ();
3490
3491 gotplt = htab->elf.igotplt;
3492 relplt = htab->elf.irelplt;
3493
3494 /* Index of the PLT slot within iplt section. */
3495 iplt_index = iplt_offset / PLT_ENTRY_SIZE;
3496 plt = htab->elf.iplt;
3497 /* Offset into the igot.plt section. */
3498 igotiplt_offset = iplt_index * GOT_ENTRY_SIZE;
3499 /* Offset into the got section. */
3500 got_offset = igotiplt_offset + gotplt->output_offset;
3501
3502 /* S390 uses halfwords for relative branch calc! */
3503 relative_offset = - (plt->output_offset +
3504 (PLT_ENTRY_SIZE * iplt_index) + 18) / 2;
3505/* If offset is > 32768, branch to a previous branch
3506 390 can only handle +-64 K jumps. */
3507 if ( -32768 > (int) relative_offset )
3508 relative_offset
3509 = -(unsigned) (((65536 / PLT_ENTRY_SIZE - 1) * PLT_ENTRY_SIZE) / 2);
3510
3511 /* Fill in the entry in the procedure linkage table. */
0e1862bb 3512 if (!bfd_link_pic (info))
470b557a
AK		 3513 {
3514 memcpy (plt->contents + iplt_offset, elf_s390_plt_entry,
3515 PLT_ENTRY_SIZE);
3516
3517 /* Adjust jump to the first plt entry. */
3518 bfd_put_32 (output_bfd, (bfd_vma) 0+(relative_offset << 16),
3519 plt->contents + iplt_offset + 20);
3520
3521 /* Push the GOT offset field. */
3522 bfd_put_32 (output_bfd,
3523 (gotplt->output_section->vma
3524 + got_offset),
3525 plt->contents + iplt_offset + 24);
3526 }
3527 else if (got_offset < 4096)
3528 {
3529 /* The GOT offset is small enough to be used directly as
3530 displacement. */
3531 memcpy (plt->contents + iplt_offset,
3532 elf_s390_plt_pic12_entry,
3533 PLT_ENTRY_SIZE);
3534
3535 /* Put in the GOT offset as displacement value. The 0xc000
3536 value comes from the first word of the plt entry. Look
3537 at the elf_s390_plt_pic16_entry content. */
3538 bfd_put_16 (output_bfd, (bfd_vma)0xc000 | got_offset,
3539 plt->contents + iplt_offset + 2);
3540
3541 /* Adjust the jump to the first plt entry. */
3542 bfd_put_32 (output_bfd, (bfd_vma) 0+(relative_offset << 16),
3543 plt->contents + iplt_offset + 20);
3544 }
3545 else if (got_offset < 32768)
3546 {
3547 /* The GOT offset is too big for a displacement but small
3548 enough to be a signed 16 bit immediate value as it can be
3549 used in an lhi instruction. */
3550 memcpy (plt->contents + iplt_offset,
3551 elf_s390_plt_pic16_entry,
3552 PLT_ENTRY_SIZE);
3553
3554 /* Put in the GOT offset for the lhi instruction. */
3555 bfd_put_16 (output_bfd, (bfd_vma)got_offset,
3556 plt->contents + iplt_offset + 2);
3557
3558 /* Adjust the jump to the first plt entry. */
3559 bfd_put_32 (output_bfd, (bfd_vma) 0+(relative_offset << 16),
3560 plt->contents + iplt_offset + 20);
3561 }
3562 else
3563 {
3564 memcpy (plt->contents + iplt_offset,
3565 elf_s390_plt_pic_entry,
3566 PLT_ENTRY_SIZE);
3567
3568 /* Adjust the jump to the first plt entry. */
3569 bfd_put_32 (output_bfd, (bfd_vma) 0+(relative_offset << 16),
3570 plt->contents + iplt_offset + 20);
3571
3572 /* Push the GOT offset field. */
3573 bfd_put_32 (output_bfd, got_offset,
3574 plt->contents + iplt_offset + 24);
3575 }
3576 /* Insert offset into reloc. table here. */
3577 bfd_put_32 (output_bfd, relplt->output_offset +
3578 iplt_index * RELA_ENTRY_SIZE,
3579 plt->contents + iplt_offset + 28);
3580
3581 /* Fill in the entry in the global offset table.
3582 Points to instruction after GOT offset. */
3583 bfd_put_32 (output_bfd,
3584 (plt->output_section->vma
3585 + plt->output_offset
3586 + iplt_offset
3587 + 12),
3588 gotplt->contents + igotiplt_offset);
3589
3590 /* Fill in the entry in the .rela.plt section. */
3591 rela.r_offset = gotplt->output_section->vma + got_offset;
3592
3593 if (!h
3594 || h->dynindx == -1
0e1862bb 3595 || ((bfd_link_executable (info)
470b557a
AK		 3596 || ELF_ST_VISIBILITY (h->other) != STV_DEFAULT)
3597 && h->def_regular))
3598 {
3599 /* The symbol can be locally resolved. */
3600 rela.r_info = ELF32_R_INFO (0, R_390_IRELATIVE);
3601 rela.r_addend = resolver_address;
3602 }
3603 else
3604 {
3605 rela.r_info = ELF32_R_INFO (h->dynindx, R_390_JMP_SLOT);
3606 rela.r_addend = 0;
3607 }
3608
3609 loc = relplt->contents + iplt_index * RELA_ENTRY_SIZE;
3610 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
3611}
3612
a85d7ed0
NC		 3613/* Finish up dynamic symbol handling. We set the contents of various
3614 dynamic sections here. */
3615
b34976b6 3616static bfd_boolean
2c3fc389
NC		 3617elf_s390_finish_dynamic_symbol (bfd *output_bfd,
3618 struct bfd_link_info *info,
3619 struct elf_link_hash_entry *h,
3620 Elf_Internal_Sym *sym)
a85d7ed0 3621{
0451c93c 3622 struct elf_s390_link_hash_table *htab;
470b557a 3623 struct elf_s390_link_hash_entry *eh = (struct elf_s390_link_hash_entry*)h;
ec338859 3624
0451c93c 3625 htab = elf_s390_hash_table (info);
ec338859 3626
a85d7ed0
NC		 3627 if (h->plt.offset != (bfd_vma) -1)
3628 {
0451c93c
MS		 3629 bfd_vma plt_index;
3630 bfd_vma got_offset;
a85d7ed0 3631 Elf_Internal_Rela rela;
947216bf 3632 bfd_byte *loc;
a85d7ed0 3633 bfd_vma relative_offset;
ec338859 3634
a85d7ed0 3635 /* This symbol has an entry in the procedure linkage table. Set
26e41594 3636 it up. */
0a511368 3637 if (s390_is_ifunc_symbol_p (h) && h->def_regular)
0451c93c 3638 {
0a511368
AK		 3639 elf_s390_finish_ifunc_symbol (output_bfd, info, h,
3640 htab, h->plt.offset,
3641 eh->ifunc_resolver_address +
3642 eh->ifunc_resolver_section->output_offset +
3643 eh->ifunc_resolver_section->output_section->vma);
3644 /* Do not return yet. Handling of explicit GOT slots of
3645 IFUNC symbols is below. */
0451c93c 3646 }
a85d7ed0 3647 else
0451c93c 3648 {
470b557a
AK		 3649 if (h->dynindx == -1
3650 || htab->elf.splt == NULL
3651 || htab->elf.sgotplt == NULL
3652 || htab->elf.srelplt == NULL)
3653 abort ();
9aa17453 3654
470b557a
AK		 3655 /* Calc. index no.
3656 Current offset - size first entry / entry size. */
3657 plt_index = (h->plt.offset - PLT_FIRST_ENTRY_SIZE) / PLT_ENTRY_SIZE;
9aa17453 3658
470b557a
AK		 3659 /* Offset in GOT is PLT index plus GOT headers(3) times 4,
3660 addr & GOT addr. */
3661 got_offset = (plt_index + 3) * GOT_ENTRY_SIZE;
a85d7ed0 3662
470b557a
AK		 3663 /* S390 uses halfwords for relative branch calc! */
3664 relative_offset = - ((PLT_FIRST_ENTRY_SIZE +
3665 (PLT_ENTRY_SIZE * plt_index) + 18) / 2);
3666 /* If offset is > 32768, branch to a previous branch
3667 390 can only handle +-64 K jumps. */
3668 if ( -32768 > (int) relative_offset )
3669 relative_offset
3670 = -(unsigned) (((65536 / PLT_ENTRY_SIZE - 1) * PLT_ENTRY_SIZE) / 2);
ec338859 3671
470b557a 3672 /* Fill in the entry in the procedure linkage table. */
0e1862bb 3673 if (!bfd_link_pic (info))
470b557a
AK		 3674 {
3675 memcpy (htab->elf.splt->contents + h->plt.offset, elf_s390_plt_entry,
3676 PLT_ENTRY_SIZE);
3677
3678 /* Adjust jump to the first plt entry. */
3679 bfd_put_32 (output_bfd, (bfd_vma) 0+(relative_offset << 16),
3680 htab->elf.splt->contents + h->plt.offset + 20);
3681
3682 /* Push the GOT offset field. */
3683 bfd_put_32 (output_bfd,
3684 (htab->elf.sgotplt->output_section->vma
3685 + htab->elf.sgotplt->output_offset
3686 + got_offset),
3687 htab->elf.splt->contents + h->plt.offset + 24);
3688 }
3689 else if (got_offset < 4096)
3690 {
3691 /* The GOT offset is small enough to be used directly as
3692 displacement. */
3693 memcpy (htab->elf.splt->contents + h->plt.offset,
3694 elf_s390_plt_pic12_entry,
3695 PLT_ENTRY_SIZE);
3696
3697 /* Put in the GOT offset as displacement value. The 0xc000
3698 value comes from the first word of the plt entry. Look
3699 at the elf_s390_plt_pic16_entry content. */
3700 bfd_put_16 (output_bfd, (bfd_vma)0xc000 | got_offset,
3701 htab->elf.splt->contents + h->plt.offset + 2);
3702
3703 /* Adjust the jump to the first plt entry. */
3704 bfd_put_32 (output_bfd, (bfd_vma) 0+(relative_offset << 16),
3705 htab->elf.splt->contents + h->plt.offset + 20);
3706 }
3707 else if (got_offset < 32768)
3708 {
3709 /* The GOT offset is too big for a displacement but small
3710 enough to be a signed 16 bit immediate value as it can be
3711 used in an lhi instruction. */
3712 memcpy (htab->elf.splt->contents + h->plt.offset,
3713 elf_s390_plt_pic16_entry,
3714 PLT_ENTRY_SIZE);
3715
3716 /* Put in the GOT offset for the lhi instruction. */
3717 bfd_put_16 (output_bfd, (bfd_vma)got_offset,
3718 htab->elf.splt->contents + h->plt.offset + 2);
3719
3720 /* Adjust the jump to the first plt entry. */
3721 bfd_put_32 (output_bfd, (bfd_vma) 0+(relative_offset << 16),
3722 htab->elf.splt->contents + h->plt.offset + 20);
3723 }
3724 else
3725 {
3726 memcpy (htab->elf.splt->contents + h->plt.offset,
3727 elf_s390_plt_pic_entry,
3728 PLT_ENTRY_SIZE);
3729
3730 /* Adjust the jump to the first plt entry. */
3731 bfd_put_32 (output_bfd, (bfd_vma) 0+(relative_offset << 16),
3732 htab->elf.splt->contents + h->plt.offset + 20);
3733
3734 /* Push the GOT offset field. */
3735 bfd_put_32 (output_bfd, got_offset,
3736 htab->elf.splt->contents + h->plt.offset + 24);
3737 }
3738 /* Insert offset into reloc. table here. */
3739 bfd_put_32 (output_bfd, plt_index * sizeof (Elf32_External_Rela),
3740 htab->elf.splt->contents + h->plt.offset + 28);
3741
3742 /* Fill in the entry in the global offset table.
3743 Points to instruction after GOT offset. */
3744 bfd_put_32 (output_bfd,
3745 (htab->elf.splt->output_section->vma
3746 + htab->elf.splt->output_offset
3747 + h->plt.offset
3748 + 12),
3749 htab->elf.sgotplt->contents + got_offset);
3750
3751 /* Fill in the entry in the .rela.plt section. */
3752 rela.r_offset = (htab->elf.sgotplt->output_section->vma
3753 + htab->elf.sgotplt->output_offset
3754 + got_offset);
3755 rela.r_info = ELF32_R_INFO (h->dynindx, R_390_JMP_SLOT);
3756 rela.r_addend = 0;
3757 loc = htab->elf.srelplt->contents + plt_index * sizeof (Elf32_External_Rela);
3758 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
3759
3760 if (!h->def_regular)
3761 {
3762 /* Mark the symbol as undefined, rather than as defined in
3763 the .plt section. Leave the value alone. This is a clue
3764 for the dynamic linker, to make function pointer
3765 comparisons work between an application and shared
3766 library. */
3767 sym->st_shndx = SHN_UNDEF;
3768 }
a85d7ed0
NC		 3769 }
3770 }
ec338859 3771
69fc87f1
MS		 3772 if (h->got.offset != (bfd_vma) -1
3773 && elf_s390_hash_entry(h)->tls_type != GOT_TLS_GD
3774 && elf_s390_hash_entry(h)->tls_type != GOT_TLS_IE
3775 && elf_s390_hash_entry(h)->tls_type != GOT_TLS_IE_NLT)
a85d7ed0 3776 {
a85d7ed0 3777 Elf_Internal_Rela rela;
947216bf 3778 bfd_byte *loc;
a85d7ed0
NC		 3779
3780 /* This symbol has an entry in the global offset table. Set it
26e41594 3781 up. */
a85d7ed0 3782
f41345a7 3783 if (htab->elf.sgot == NULL || htab->elf.srelgot == NULL)
0451c93c 3784 abort ();
a85d7ed0 3785
f41345a7
AK		 3786 rela.r_offset = (htab->elf.sgot->output_section->vma
3787 + htab->elf.sgot->output_offset
dc810e39 3788 + (h->got.offset &~ (bfd_vma) 1));
a85d7ed0
NC		 3789
3790 /* If this is a static link, or it is a -Bsymbolic link and the
3791 symbol is defined locally or was forced to be local because
3792 of a version file, we just want to emit a RELATIVE reloc.
3793 The entry in the global offset table will already have been
3794 initialized in the relocate_section function. */
470b557a
AK		 3795 if (h->def_regular && s390_is_ifunc_symbol_p (h))
3796 {
0e1862bb 3797 if (bfd_link_pic (info))
470b557a
AK		 3798 {
3799 /* An explicit GOT slot usage needs GLOB_DAT. If the
3800 symbol references local the implicit got.iplt slot
3801 will be used and the IRELATIVE reloc has been created
3802 above. */
3803 goto do_glob_dat;
3804 }
3805 else
3806 {
3807 /* For non-shared objects explicit GOT slots must be
3808 filled with the PLT slot address for pointer
3809 equality reasons. */
3810 bfd_put_32 (output_bfd, (htab->elf.iplt->output_section->vma
3811 + htab->elf.iplt->output_offset
3812 + h->plt.offset),
3813 htab->elf.sgot->contents + h->got.offset);
3814 return TRUE;
3815 }
3816 }
0e1862bb 3817 else if (bfd_link_pic (info)
8c21ca21 3818 && SYMBOL_REFERENCES_LOCAL (info, h))
0451c93c 3819 {
470b557a
AK		 3820 /* If this is a static link, or it is a -Bsymbolic link and
3821 the symbol is defined locally or was forced to be local
3822 because of a version file, we just want to emit a
3823 RELATIVE reloc. The entry in the global offset table
3824 will already have been initialized in the
3825 relocate_section function. */
8c21ca21
AK		 3826 if (!h->def_regular)
3827 return FALSE;
0451c93c
MS		 3828 BFD_ASSERT((h->got.offset & 1) != 0);
3829 rela.r_info = ELF32_R_INFO (0, R_390_RELATIVE);
3830 rela.r_addend = (h->root.u.def.value
26e41594
AM		 3831 + h->root.u.def.section->output_section->vma
3832 + h->root.u.def.section->output_offset);
3833 }
a85d7ed0
NC		 3834 else
3835 {
3836 BFD_ASSERT((h->got.offset & 1) == 0);
470b557a 3837 do_glob_dat:
f41345a7 3838 bfd_put_32 (output_bfd, (bfd_vma) 0, htab->elf.sgot->contents + h->got.offset);
a85d7ed0 3839 rela.r_info = ELF32_R_INFO (h->dynindx, R_390_GLOB_DAT);
26e41594
AM		 3840 rela.r_addend = 0;
3841 }
a85d7ed0 3842
f41345a7
AK		 3843 loc = htab->elf.srelgot->contents;
3844 loc += htab->elf.srelgot->reloc_count++ * sizeof (Elf32_External_Rela);
0451c93c 3845 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
a85d7ed0
NC		 3846 }
3847
f5385ebf 3848 if (h->needs_copy)
a85d7ed0 3849 {
a85d7ed0 3850 Elf_Internal_Rela rela;
947216bf 3851 bfd_byte *loc;
a85d7ed0
NC		 3852
3853 /* This symbols needs a copy reloc. Set it up. */
3854
0451c93c
MS		 3855 if (h->dynindx == -1
3856 || (h->root.type != bfd_link_hash_defined
3857 && h->root.type != bfd_link_hash_defweak)
3858 || htab->srelbss == NULL)
3859 abort ();
a85d7ed0
NC		 3860
3861 rela.r_offset = (h->root.u.def.value
3862 + h->root.u.def.section->output_section->vma
3863 + h->root.u.def.section->output_offset);
3864 rela.r_info = ELF32_R_INFO (h->dynindx, R_390_COPY);
3865 rela.r_addend = 0;
947216bf
AM		 3866 loc = htab->srelbss->contents;
3867 loc += htab->srelbss->reloc_count++ * sizeof (Elf32_External_Rela);
0451c93c 3868 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
a85d7ed0
NC		 3869 }
3870
3871 /* Mark some specially defined symbols as absolute. */
9637f6ef 3872 if (h == htab->elf.hdynamic
22edb2f1
RS		 3873 || h == htab->elf.hgot
3874 || h == htab->elf.hplt)
a85d7ed0
NC		 3875 sym->st_shndx = SHN_ABS;
3876
b34976b6 3877 return TRUE;
a85d7ed0
NC		 3878}
3879
0451c93c
MS		 3880/* Used to decide how to sort relocs in an optimal manner for the
3881 dynamic linker, before writing them out. */
3882
3883static enum elf_reloc_type_class
7e612e98
AM		 3884elf_s390_reloc_type_class (const struct bfd_link_info *info ATTRIBUTE_UNUSED,
3885 const asection *rel_sec ATTRIBUTE_UNUSED,
3886 const Elf_Internal_Rela *rela)
0451c93c 3887{
0f042c67
AK		 3888 bfd *abfd = info->output_bfd;
3889 const struct elf_backend_data *bed = get_elf_backend_data (abfd);
3890 struct elf_s390_link_hash_table *htab = elf_s390_hash_table (info);
3891 unsigned long r_symndx = ELF32_R_SYM (rela->r_info);
3892 Elf_Internal_Sym sym;
3893
3894 if (htab->elf.dynsym == NULL
3895 || !bed->s->swap_symbol_in (abfd,
3896 (htab->elf.dynsym->contents
3897 + r_symndx * bed->s->sizeof_sym),
3898 0, &sym))
3899 abort ();
3900
3901 /* Check relocation against STT_GNU_IFUNC symbol. */
3902 if (ELF_ST_TYPE (sym.st_info) == STT_GNU_IFUNC)
3903 return reloc_class_ifunc;
3904
0451c93c
MS		 3905 switch ((int) ELF32_R_TYPE (rela->r_info))
3906 {
3907 case R_390_RELATIVE:
3908 return reloc_class_relative;
3909 case R_390_JMP_SLOT:
3910 return reloc_class_plt;
3911 case R_390_COPY:
3912 return reloc_class_copy;
3913 default:
3914 return reloc_class_normal;
3915 }
3916}
3917
a85d7ed0
NC		 3918/* Finish up the dynamic sections. */
3919
b34976b6 3920static bfd_boolean
2c3fc389
NC		 3921elf_s390_finish_dynamic_sections (bfd *output_bfd,
3922 struct bfd_link_info *info)
a85d7ed0 3923{
0451c93c 3924 struct elf_s390_link_hash_table *htab;
a85d7ed0
NC		 3925 bfd *dynobj;
3926 asection *sdyn;
470b557a
AK		 3927 bfd *ibfd;
3928 unsigned int i;
a85d7ed0 3929
0451c93c
MS		 3930 htab = elf_s390_hash_table (info);
3931 dynobj = htab->elf.dynobj;
3d4d4302 3932 sdyn = bfd_get_linker_section (dynobj, ".dynamic");
a85d7ed0 3933
0451c93c 3934 if (htab->elf.dynamic_sections_created)
a85d7ed0 3935 {
a85d7ed0
NC		 3936 Elf32_External_Dyn *dyncon, *dynconend;
3937
f41345a7 3938 if (sdyn == NULL || htab->elf.sgot == NULL)
0451c93c 3939 abort ();
a85d7ed0
NC		 3940
3941 dyncon = (Elf32_External_Dyn *) sdyn->contents;
eea6121a 3942 dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size);
a85d7ed0
NC		 3943 for (; dyncon < dynconend; dyncon++)
3944 {
3945 Elf_Internal_Dyn dyn;
a85d7ed0 3946 asection *s;
ec338859 3947
a85d7ed0 3948 bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn);
ec338859 3949
a85d7ed0
NC		 3950 switch (dyn.d_tag)
3951 {
3952 default:
0451c93c 3953 continue;
ec338859 3954
a85d7ed0 3955 case DT_PLTGOT:
f41345a7 3956 dyn.d_un.d_ptr = htab->elf.sgot->output_section->vma;
0451c93c 3957 break;
ec338859 3958
a85d7ed0 3959 case DT_JMPREL:
f41345a7 3960 dyn.d_un.d_ptr = htab->elf.srelplt->output_section->vma;
a85d7ed0
NC		 3961 break;
3962
3963 case DT_PLTRELSZ:
f41345a7 3964 s = htab->elf.srelplt->output_section;
eea6121a 3965 dyn.d_un.d_val = s->size;
a85d7ed0
NC		 3966 break;
3967 }
0451c93c
MS		 3968
3969 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
a85d7ed0
NC		 3970 }
3971
3972 /* Fill in the special first entry in the procedure linkage table. */
f41345a7 3973 if (htab->elf.splt && htab->elf.splt->size > 0)
a85d7ed0 3974 {
f41345a7 3975 memset (htab->elf.splt->contents, 0, PLT_FIRST_ENTRY_SIZE);
0e1862bb 3976 if (bfd_link_pic (info))
0451c93c 3977 {
f41345a7 3978 memcpy (htab->elf.splt->contents, elf_s390_plt_pic_first_entry,
9aa17453
AK		 3979 PLT_FIRST_ENTRY_SIZE);
3980 }
26e41594 3981 else
9aa17453 3982 {
f41345a7 3983 memcpy (htab->elf.splt->contents, elf_s390_plt_first_entry,
9aa17453 3984 PLT_FIRST_ENTRY_SIZE);
26e41594 3985 bfd_put_32 (output_bfd,
f41345a7
AK		 3986 htab->elf.sgotplt->output_section->vma
3987 + htab->elf.sgotplt->output_offset,
3988 htab->elf.splt->contents + 24);
26e41594 3989 }
f41345a7 3990 elf_section_data (htab->elf.splt->output_section)
0451c93c 3991 ->this_hdr.sh_entsize = 4;
a85d7ed0
NC		 3992 }
3993
3994 }
3995
f41345a7 3996 if (htab->elf.sgotplt)
a85d7ed0 3997 {
0451c93c 3998 /* Fill in the first three entries in the global offset table. */
f41345a7 3999 if (htab->elf.sgotplt->size > 0)
0451c93c
MS		 4000 {
4001 bfd_put_32 (output_bfd,
4002 (sdyn == NULL ? (bfd_vma) 0
4003 : sdyn->output_section->vma + sdyn->output_offset),
f41345a7 4004 htab->elf.sgotplt->contents);
0451c93c 4005 /* One entry for shared object struct ptr. */
f41345a7 4006 bfd_put_32 (output_bfd, (bfd_vma) 0, htab->elf.sgotplt->contents + 4);
0451c93c 4007 /* One entry for _dl_runtime_resolve. */
f41345a7 4008 bfd_put_32 (output_bfd, (bfd_vma) 0, htab->elf.sgotplt->contents + 8);
0451c93c 4009 }
a85d7ed0 4010
f41345a7 4011 elf_section_data (htab->elf.sgotplt->output_section)
0451c93c
MS		 4012 ->this_hdr.sh_entsize = 4;
4013 }
470b557a 4014 /* Finish dynamic symbol for local IFUNC symbols. */
c72f2fb2 4015 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next)
470b557a
AK		 4016 {
4017 struct plt_entry *local_plt;
4018 Elf_Internal_Sym *isym;
4019 Elf_Internal_Shdr *symtab_hdr;
4020
4021 symtab_hdr = &elf_symtab_hdr (ibfd);
4022
4023 local_plt = elf_s390_local_plt (ibfd);
4024 if (local_plt != NULL)
4025 for (i = 0; i < symtab_hdr->sh_info; i++)
4026 {
4027 if (local_plt[i].plt.offset != (bfd_vma) -1)
4028 {
4029 asection *sec = local_plt[i].sec;
4030 isym = bfd_sym_from_r_symndx (&htab->sym_cache, ibfd, i);
4031 if (isym == NULL)
4032 return FALSE;
4033
4034 if (ELF_ST_TYPE (isym->st_info) == STT_GNU_IFUNC)
4035 elf_s390_finish_ifunc_symbol (output_bfd, info, NULL, htab,
4036 local_plt[i].plt.offset,
4037 isym->st_value
4038 + sec->output_section->vma
4039 + sec->output_offset);
4040
4041 }
4042 }
4043 }
b34976b6 4044 return TRUE;
a85d7ed0
NC		 4045}
4046
b34976b6 4047static bfd_boolean
2c3fc389 4048elf_s390_grok_prstatus (bfd * abfd, Elf_Internal_Note * note)
979f4a38
NC		 4049{
4050 int offset;
eea6121a 4051 unsigned int size;
979f4a38
NC		 4052
4053 switch (note->descsz)
4054 {
4055 default:
b34976b6 4056 return FALSE;
979f4a38
NC		 4057
4058 case 224: /* S/390 Linux. */
4059 /* pr_cursig */
228e534f 4060 elf_tdata (abfd)->core->signal = bfd_get_16 (abfd, note->descdata + 12);
979f4a38
NC		 4061
4062 /* pr_pid */
228e534f 4063 elf_tdata (abfd)->core->lwpid = bfd_get_32 (abfd, note->descdata + 24);
979f4a38
NC		 4064
4065 /* pr_reg */
4066 offset = 72;
eea6121a 4067 size = 144;
979f4a38
NC		 4068 break;
4069 }
4070
4071 /* Make a ".reg/999" section. */
4072 return _bfd_elfcore_make_pseudosection (abfd, ".reg",
eea6121a 4073 size, note->descpos + offset);
979f4a38
NC		 4074}
4075
4c45e5c9
JJ		 4076/* Return address for Ith PLT stub in section PLT, for relocation REL
4077 or (bfd_vma) -1 if it should not be included. */
4078
4079static bfd_vma
4080elf_s390_plt_sym_val (bfd_vma i, const asection *plt,
4081 const arelent *rel ATTRIBUTE_UNUSED)
4082{
4083 return plt->vma + PLT_FIRST_ENTRY_SIZE + i * PLT_ENTRY_SIZE;
4084}
4085
643f7afb
AK		 4086/* Merge backend specific data from an object file to the output
4087 object file when linking. */
4088
55786da2
AK		 4089static bfd_boolean
4090elf32_s390_merge_private_bfd_data (bfd *ibfd, bfd *obfd)
4091{
643f7afb
AK		 4092 if (!is_s390_elf (ibfd) || !is_s390_elf (obfd))
4093 return TRUE;
4094
4095 if (!elf_s390_merge_obj_attributes (ibfd, obfd))
4096 return FALSE;
4097
55786da2
AK		 4098 elf_elfheader (obfd)->e_flags |= elf_elfheader (ibfd)->e_flags;
4099 return TRUE;
4100}
4101
4c45e5c9 4102
6d00b590 4103#define TARGET_BIG_SYM s390_elf32_vec
a85d7ed0
NC		 4104#define TARGET_BIG_NAME "elf32-s390"
4105#define ELF_ARCH bfd_arch_s390
ae95ffa6 4106#define ELF_TARGET_ID S390_ELF_DATA
a85d7ed0
NC		 4107#define ELF_MACHINE_CODE EM_S390
4108#define ELF_MACHINE_ALT1 EM_S390_OLD
4109#define ELF_MAXPAGESIZE 0x1000
4110
4111#define elf_backend_can_gc_sections 1
51b64d56 4112#define elf_backend_can_refcount 1
a85d7ed0
NC		 4113#define elf_backend_want_got_plt 1
4114#define elf_backend_plt_readonly 1
4115#define elf_backend_want_plt_sym 0
4116#define elf_backend_got_header_size 12
b491616a 4117#define elf_backend_rela_normal 1
a85d7ed0 4118
26e41594 4119#define elf_info_to_howto elf_s390_info_to_howto
a85d7ed0 4120
a85d7ed0
NC		 4121#define bfd_elf32_bfd_is_local_label_name elf_s390_is_local_label_name
4122#define bfd_elf32_bfd_link_hash_table_create elf_s390_link_hash_table_create
4123#define bfd_elf32_bfd_reloc_type_lookup elf_s390_reloc_type_lookup
157090f7 4124#define bfd_elf32_bfd_reloc_name_lookup elf_s390_reloc_name_lookup
a85d7ed0 4125
55786da2
AK		 4126#define bfd_elf32_bfd_merge_private_bfd_data elf32_s390_merge_private_bfd_data
4127
a85d7ed0 4128#define elf_backend_adjust_dynamic_symbol elf_s390_adjust_dynamic_symbol
26e41594 4129#define elf_backend_check_relocs elf_s390_check_relocs
0451c93c
MS		 4130#define elf_backend_copy_indirect_symbol elf_s390_copy_indirect_symbol
4131#define elf_backend_create_dynamic_sections elf_s390_create_dynamic_sections
a85d7ed0
NC		 4132#define elf_backend_finish_dynamic_sections elf_s390_finish_dynamic_sections
4133#define elf_backend_finish_dynamic_symbol elf_s390_finish_dynamic_symbol
26e41594
AM		 4134#define elf_backend_gc_mark_hook elf_s390_gc_mark_hook
4135#define elf_backend_gc_sweep_hook elf_s390_gc_sweep_hook
0451c93c 4136#define elf_backend_reloc_type_class elf_s390_reloc_type_class
26e41594 4137#define elf_backend_relocate_section elf_s390_relocate_section
a85d7ed0 4138#define elf_backend_size_dynamic_sections elf_s390_size_dynamic_sections
74541ad4 4139#define elf_backend_init_index_section _bfd_elf_init_1_index_section
979f4a38 4140#define elf_backend_grok_prstatus elf_s390_grok_prstatus
4c45e5c9 4141#define elf_backend_plt_sym_val elf_s390_plt_sym_val
470b557a 4142#define elf_backend_add_symbol_hook elf_s390_add_symbol_hook
b9005ba7 4143#define elf_backend_sort_relocs_p elf_s390_elf_sort_relocs_p
a85d7ed0 4144
69fc87f1 4145#define bfd_elf32_mkobject elf_s390_mkobject
26e41594 4146#define elf_backend_object_p elf_s390_object_p
a85d7ed0
NC		 4147
4148#include "elf32-target.h"
GDB Binutils - Deliverables
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