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[deliverable/binutils-gdb.git] / bfd / elf32-s390.c
CommitLineData
a85d7ed0 1/* IBM S/390-specific support for 32-bit ELF
82704155 2 Copyright (C) 2000-2019 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 27#include "elf/s390.h"
e3e9290d 28#include <stdarg.h>
a85d7ed0 29
2c3fc389
NC		 30static bfd_reloc_status_type
31s390_tls_reloc (bfd *, arelent *, asymbol *, void *,
32 asection *, bfd *, char **);
33static bfd_reloc_status_type
34s390_elf_ldisp_reloc (bfd *, arelent *, asymbol *, void *,
35 asection *, bfd *, char **);
36
a85d7ed0
NC		 37/* The relocation "howto" table. */
38
39static reloc_howto_type elf_howto_table[] =
40{
41 HOWTO (R_390_NONE, /* type */
42 0, /* rightshift */
6346d5ca 43 3, /* size (0 = byte, 1 = 2 byte, 2 = 4 byte) */
a85d7ed0 44 0, /* bitsize */
b34976b6 45 FALSE, /* pc_relative */
a85d7ed0
NC		 46 0, /* bitpos */
47 complain_overflow_dont, /* complain_on_overflow */
48 bfd_elf_generic_reloc, /* special_function */
49 "R_390_NONE", /* name */
b34976b6 50 FALSE, /* partial_inplace */
a85d7ed0
NC		 51 0, /* src_mask */
52 0, /* dst_mask */
b34976b6
AM		 53 FALSE), /* pcrel_offset */
54
07d6d2b8
AM		 55 HOWTO(R_390_8, 0, 0, 8, FALSE, 0, complain_overflow_bitfield,
56 bfd_elf_generic_reloc, "R_390_8", FALSE, 0,0x000000ff, FALSE),
57 HOWTO(R_390_12, 0, 1, 12, FALSE, 0, complain_overflow_dont,
58 bfd_elf_generic_reloc, "R_390_12", FALSE, 0,0x00000fff, FALSE),
59 HOWTO(R_390_16, 0, 1, 16, FALSE, 0, complain_overflow_bitfield,
60 bfd_elf_generic_reloc, "R_390_16", FALSE, 0,0x0000ffff, FALSE),
61 HOWTO(R_390_32, 0, 2, 32, FALSE, 0, complain_overflow_bitfield,
62 bfd_elf_generic_reloc, "R_390_32", FALSE, 0,0xffffffff, FALSE),
5236c819 63 HOWTO(R_390_PC32, 0, 2, 32, TRUE, 0, complain_overflow_bitfield,
07d6d2b8 64 bfd_elf_generic_reloc, "R_390_PC32", FALSE, 0,0xffffffff, TRUE),
15f8604d 65 HOWTO(R_390_GOT12, 0, 1, 12, FALSE, 0, complain_overflow_bitfield,
07d6d2b8 66 bfd_elf_generic_reloc, "R_390_GOT12", FALSE, 0,0x00000fff, FALSE),
5236c819 67 HOWTO(R_390_GOT32, 0, 2, 32, FALSE, 0, complain_overflow_bitfield,
07d6d2b8 68 bfd_elf_generic_reloc, "R_390_GOT32", FALSE, 0,0xffffffff, FALSE),
5236c819 69 HOWTO(R_390_PLT32, 0, 2, 32, TRUE, 0, complain_overflow_bitfield,
07d6d2b8
AM		 70 bfd_elf_generic_reloc, "R_390_PLT32", FALSE, 0,0xffffffff, TRUE),
71 HOWTO(R_390_COPY, 0, 2, 32, FALSE, 0, complain_overflow_bitfield,
72 bfd_elf_generic_reloc, "R_390_COPY", FALSE, 0,0xffffffff, FALSE),
73 HOWTO(R_390_GLOB_DAT, 0, 2, 32, FALSE, 0, complain_overflow_bitfield,
5236c819 74 bfd_elf_generic_reloc, "R_390_GLOB_DAT", FALSE, 0,0xffffffff, FALSE),
07d6d2b8 75 HOWTO(R_390_JMP_SLOT, 0, 2, 32, FALSE, 0, complain_overflow_bitfield,
5236c819 76 bfd_elf_generic_reloc, "R_390_JMP_SLOT", FALSE, 0,0xffffffff, FALSE),
07d6d2b8 77 HOWTO(R_390_RELATIVE, 0, 2, 32, TRUE, 0, complain_overflow_bitfield,
5236c819 78 bfd_elf_generic_reloc, "R_390_RELATIVE", FALSE, 0,0xffffffff, FALSE),
07d6d2b8 79 HOWTO(R_390_GOTOFF32, 0, 2, 32, FALSE, 0, complain_overflow_bitfield,
5236c819 80 bfd_elf_generic_reloc, "R_390_GOTOFF32", FALSE, 0,0xffffffff, FALSE),
07d6d2b8
AM		 81 HOWTO(R_390_GOTPC, 0, 2, 32, TRUE, 0, complain_overflow_bitfield,
82 bfd_elf_generic_reloc, "R_390_GOTPC", FALSE, 0,0xffffffff, TRUE),
83 HOWTO(R_390_GOT16, 0, 1, 16, FALSE, 0, complain_overflow_bitfield,
84 bfd_elf_generic_reloc, "R_390_GOT16", FALSE, 0,0x0000ffff, FALSE),
85 HOWTO(R_390_PC16, 0, 1, 16, TRUE, 0, complain_overflow_bitfield,
86 bfd_elf_generic_reloc, "R_390_PC16", FALSE, 0,0x0000ffff, TRUE),
87 HOWTO(R_390_PC16DBL, 1, 1, 16, TRUE, 0, complain_overflow_bitfield,
88 bfd_elf_generic_reloc, "R_390_PC16DBL", FALSE, 0,0x0000ffff, TRUE),
89 HOWTO(R_390_PLT16DBL, 1, 1, 16, TRUE, 0, complain_overflow_bitfield,
5236c819
MS		 90 bfd_elf_generic_reloc, "R_390_PLT16DBL", FALSE, 0,0x0000ffff, TRUE),
91 HOWTO(R_390_PC32DBL, 1, 2, 32, TRUE, 0, complain_overflow_bitfield,
07d6d2b8 92 bfd_elf_generic_reloc, "R_390_PC32DBL", FALSE, 0,0xffffffff, TRUE),
5236c819
MS		 93 HOWTO(R_390_PLT32DBL, 1, 2, 32, TRUE, 0, complain_overflow_bitfield,
94 bfd_elf_generic_reloc, "R_390_PLT32DBL", FALSE, 0,0xffffffff, TRUE),
07d6d2b8 95 HOWTO(R_390_GOTPCDBL, 1, 2, 32, TRUE, 0, complain_overflow_bitfield,
5236c819
MS		 96 bfd_elf_generic_reloc, "R_390_GOTPCDBL", FALSE, 0,0xffffffff, TRUE),
97 EMPTY_HOWTO (R_390_64), /* Empty entry for R_390_64. */
98 EMPTY_HOWTO (R_390_PC64), /* Empty entry for R_390_PC64. */
99 EMPTY_HOWTO (R_390_GOT64), /* Empty entry for R_390_GOT64. */
100 EMPTY_HOWTO (R_390_PLT64), /* Empty entry for R_390_PLT64. */
101 HOWTO(R_390_GOTENT, 1, 2, 32, TRUE, 0, complain_overflow_bitfield,
07d6d2b8
AM		 102 bfd_elf_generic_reloc, "R_390_GOTENT", FALSE, 0,0xffffffff, TRUE),
103 HOWTO(R_390_GOTOFF16, 0, 1, 16, FALSE, 0, complain_overflow_bitfield,
5236c819
MS		 104 bfd_elf_generic_reloc, "R_390_GOTOFF16", FALSE, 0,0x0000ffff, FALSE),
105 EMPTY_HOWTO (R_390_GOTOFF64), /* Empty entry for R_390_GOTOFF64. */
07d6d2b8 106 HOWTO(R_390_GOTPLT12, 0, 1, 12, FALSE, 0, complain_overflow_dont,
5236c819 107 bfd_elf_generic_reloc, "R_390_GOTPLT12", FALSE, 0,0x00000fff, FALSE),
07d6d2b8 108 HOWTO(R_390_GOTPLT16, 0, 1, 16, FALSE, 0, complain_overflow_bitfield,
5236c819 109 bfd_elf_generic_reloc, "R_390_GOTPLT16", FALSE, 0,0x0000ffff, FALSE),
07d6d2b8 110 HOWTO(R_390_GOTPLT32, 0, 2, 32, FALSE, 0, complain_overflow_bitfield,
5236c819
MS		 111 bfd_elf_generic_reloc, "R_390_GOTPLT32", FALSE, 0,0xffffffff, FALSE),
112 EMPTY_HOWTO (R_390_GOTPLT64), /* Empty entry for R_390_GOTPLT64. */
113 HOWTO(R_390_GOTPLTENT, 1, 2, 32, TRUE, 0, complain_overflow_bitfield,
114 bfd_elf_generic_reloc, "R_390_GOTPLTENT",FALSE, 0,0xffffffff, TRUE),
07d6d2b8 115 HOWTO(R_390_PLTOFF16, 0, 1, 16, FALSE, 0, complain_overflow_bitfield,
5236c819 116 bfd_elf_generic_reloc, "R_390_PLTOFF16", FALSE, 0,0x0000ffff, FALSE),
07d6d2b8 117 HOWTO(R_390_PLTOFF32, 0, 2, 32, FALSE, 0, complain_overflow_bitfield,
5236c819
MS		 118 bfd_elf_generic_reloc, "R_390_PLTOFF32", FALSE, 0,0xffffffff, FALSE),
119 EMPTY_HOWTO (R_390_PLTOFF64), /* Empty entry for R_390_PLTOFF64. */
69fc87f1
MS		 120 HOWTO(R_390_TLS_LOAD, 0, 0, 0, FALSE, 0, complain_overflow_dont,
121 s390_tls_reloc, "R_390_TLS_LOAD", FALSE, 0, 0, FALSE),
122 HOWTO(R_390_TLS_GDCALL, 0, 0, 0, FALSE, 0, complain_overflow_dont,
123 s390_tls_reloc, "R_390_TLS_GDCALL", FALSE, 0, 0, FALSE),
124 HOWTO(R_390_TLS_LDCALL, 0, 0, 0, FALSE, 0, complain_overflow_dont,
125 s390_tls_reloc, "R_390_TLS_LDCALL", FALSE, 0, 0, FALSE),
126 HOWTO(R_390_TLS_GD32, 0, 2, 32, FALSE, 0, complain_overflow_bitfield,
127 bfd_elf_generic_reloc, "R_390_TLS_GD32", FALSE, 0, 0xffffffff, FALSE),
128 EMPTY_HOWTO (R_390_TLS_GD64), /* Empty entry for R_390_TLS_GD64. */
129 HOWTO(R_390_TLS_GOTIE12, 0, 1, 12, FALSE, 0, complain_overflow_dont,
130 bfd_elf_generic_reloc, "R_390_TLS_GOTIE12", FALSE, 0, 0x00000fff, FALSE),
131 HOWTO(R_390_TLS_GOTIE32, 0, 2, 32, FALSE, 0, complain_overflow_bitfield,
132 bfd_elf_generic_reloc, "R_390_TLS_GOTIE32", FALSE, 0, 0xffffffff, FALSE),
133 EMPTY_HOWTO (R_390_TLS_GOTIE64), /* Empty entry for R_390_TLS_GOTIE64. */
134 HOWTO(R_390_TLS_LDM32, 0, 2, 32, FALSE, 0, complain_overflow_bitfield,
135 bfd_elf_generic_reloc, "R_390_TLS_LDM32", FALSE, 0, 0xffffffff, FALSE),
136 EMPTY_HOWTO (R_390_TLS_LDM64), /* Empty entry for R_390_TLS_LDM64. */
137 HOWTO(R_390_TLS_IE32, 0, 2, 32, FALSE, 0, complain_overflow_bitfield,
138 bfd_elf_generic_reloc, "R_390_TLS_IE32", FALSE, 0, 0xffffffff, FALSE),
139 EMPTY_HOWTO (R_390_TLS_IE64), /* Empty entry for R_390_TLS_IE64. */
140 HOWTO(R_390_TLS_IEENT, 1, 2, 32, TRUE, 0, complain_overflow_bitfield,
141 bfd_elf_generic_reloc, "R_390_TLS_IEENT", FALSE, 0, 0xffffffff, TRUE),
142 HOWTO(R_390_TLS_LE32, 0, 2, 32, FALSE, 0, complain_overflow_bitfield,
143 bfd_elf_generic_reloc, "R_390_TLS_LE32", FALSE, 0, 0xffffffff, FALSE),
144 EMPTY_HOWTO (R_390_TLS_LE64), /* Empty entry for R_390_TLS_LE64. */
145 HOWTO(R_390_TLS_LDO32, 0, 2, 32, FALSE, 0, complain_overflow_bitfield,
146 bfd_elf_generic_reloc, "R_390_TLS_LDO32", FALSE, 0, 0xffffffff, FALSE),
147 EMPTY_HOWTO (R_390_TLS_LDO64), /* Empty entry for R_390_TLS_LDO64. */
148 HOWTO(R_390_TLS_DTPMOD, 0, 2, 32, FALSE, 0, complain_overflow_bitfield,
149 bfd_elf_generic_reloc, "R_390_TLS_DTPMOD", FALSE, 0, 0xffffffff, FALSE),
150 HOWTO(R_390_TLS_DTPOFF, 0, 2, 32, FALSE, 0, complain_overflow_bitfield,
151 bfd_elf_generic_reloc, "R_390_TLS_DTPOFF", FALSE, 0, 0xffffffff, FALSE),
152 HOWTO(R_390_TLS_TPOFF, 0, 2, 32, FALSE, 0, complain_overflow_bitfield,
153 bfd_elf_generic_reloc, "R_390_TLS_TPOFF", FALSE, 0, 0xffffffff, FALSE),
07d6d2b8 154 HOWTO(R_390_20, 0, 2, 20, FALSE, 8, complain_overflow_dont,
bd1ea41b
MS		 155 s390_elf_ldisp_reloc, "R_390_20", FALSE, 0,0x0fffff00, FALSE),
156 HOWTO(R_390_GOT20, 0, 2, 20, FALSE, 8, complain_overflow_dont,
157 s390_elf_ldisp_reloc, "R_390_GOT20", FALSE, 0,0x0fffff00, FALSE),
07d6d2b8 158 HOWTO(R_390_GOTPLT20, 0, 2, 20, FALSE, 8, complain_overflow_dont,
bd1ea41b
MS		 159 s390_elf_ldisp_reloc, "R_390_GOTPLT20", FALSE, 0,0x0fffff00, FALSE),
160 HOWTO(R_390_TLS_GOTIE20, 0, 2, 20, FALSE, 8, complain_overflow_dont,
161 s390_elf_ldisp_reloc, "R_390_TLS_GOTIE20", FALSE, 0,0x0fffff00, FALSE),
470b557a
AK		 162 HOWTO(R_390_IRELATIVE, 0, 2, 32, TRUE, 0, complain_overflow_bitfield,
163 bfd_elf_generic_reloc, "R_390_IRELATIVE", FALSE, 0, 0xffffffff, FALSE),
07d6d2b8
AM		 164 HOWTO(R_390_PC12DBL, 1, 1, 12, TRUE, 0, complain_overflow_bitfield,
165 bfd_elf_generic_reloc, "R_390_PC12DBL", FALSE, 0,0x00000fff, TRUE),
fb798c50
AK		 166 HOWTO(R_390_PLT12DBL, 1, 1, 12, TRUE, 0, complain_overflow_bitfield,
167 bfd_elf_generic_reloc, "R_390_PLT12DBL", FALSE, 0,0x00000fff, TRUE),
07d6d2b8
AM		 168 HOWTO(R_390_PC24DBL, 1, 2, 24, TRUE, 0, complain_overflow_bitfield,
169 bfd_elf_generic_reloc, "R_390_PC24DBL", FALSE, 0,0x00ffffff, TRUE),
fb798c50
AK		 170 HOWTO(R_390_PLT24DBL, 1, 2, 24, TRUE, 0, complain_overflow_bitfield,
171 bfd_elf_generic_reloc, "R_390_PLT24DBL", FALSE, 0,0x00ffffff, TRUE),
a85d7ed0
NC		 172};
173
174/* GNU extension to record C++ vtable hierarchy. */
175static reloc_howto_type elf32_s390_vtinherit_howto =
b34976b6 176 HOWTO (R_390_GNU_VTINHERIT, 0,2,0,FALSE,0,complain_overflow_dont, NULL, "R_390_GNU_VTINHERIT", FALSE,0, 0, FALSE);
a85d7ed0 177static reloc_howto_type elf32_s390_vtentry_howto =
b34976b6 178 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		 179
180static reloc_howto_type *
2c3fc389
NC		 181elf_s390_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED,
182 bfd_reloc_code_real_type code)
a85d7ed0 183{
ec338859 184 switch (code)
0451c93c
MS		 185 {
186 case BFD_RELOC_NONE:
187 return &elf_howto_table[(int) R_390_NONE];
188 case BFD_RELOC_8:
189 return &elf_howto_table[(int) R_390_8];
190 case BFD_RELOC_390_12:
191 return &elf_howto_table[(int) R_390_12];
192 case BFD_RELOC_16:
193 return &elf_howto_table[(int) R_390_16];
194 case BFD_RELOC_32:
195 return &elf_howto_table[(int) R_390_32];
196 case BFD_RELOC_CTOR:
197 return &elf_howto_table[(int) R_390_32];
198 case BFD_RELOC_32_PCREL:
199 return &elf_howto_table[(int) R_390_PC32];
200 case BFD_RELOC_390_GOT12:
201 return &elf_howto_table[(int) R_390_GOT12];
202 case BFD_RELOC_32_GOT_PCREL:
203 return &elf_howto_table[(int) R_390_GOT32];
204 case BFD_RELOC_390_PLT32:
205 return &elf_howto_table[(int) R_390_PLT32];
206 case BFD_RELOC_390_COPY:
207 return &elf_howto_table[(int) R_390_COPY];
208 case BFD_RELOC_390_GLOB_DAT:
209 return &elf_howto_table[(int) R_390_GLOB_DAT];
210 case BFD_RELOC_390_JMP_SLOT:
211 return &elf_howto_table[(int) R_390_JMP_SLOT];
212 case BFD_RELOC_390_RELATIVE:
213 return &elf_howto_table[(int) R_390_RELATIVE];
214 case BFD_RELOC_32_GOTOFF:
5236c819 215 return &elf_howto_table[(int) R_390_GOTOFF32];
0451c93c
MS		 216 case BFD_RELOC_390_GOTPC:
217 return &elf_howto_table[(int) R_390_GOTPC];
218 case BFD_RELOC_390_GOT16:
219 return &elf_howto_table[(int) R_390_GOT16];
220 case BFD_RELOC_16_PCREL:
221 return &elf_howto_table[(int) R_390_PC16];
fb798c50
AK		 222 case BFD_RELOC_390_PC12DBL:
223 return &elf_howto_table[(int) R_390_PC12DBL];
224 case BFD_RELOC_390_PLT12DBL:
225 return &elf_howto_table[(int) R_390_PLT12DBL];
0451c93c
MS		 226 case BFD_RELOC_390_PC16DBL:
227 return &elf_howto_table[(int) R_390_PC16DBL];
228 case BFD_RELOC_390_PLT16DBL:
229 return &elf_howto_table[(int) R_390_PLT16DBL];
fb798c50
AK		 230 case BFD_RELOC_390_PC24DBL:
231 return &elf_howto_table[(int) R_390_PC24DBL];
232 case BFD_RELOC_390_PLT24DBL:
233 return &elf_howto_table[(int) R_390_PLT24DBL];
befc3abb
MS		 234 case BFD_RELOC_390_PC32DBL:
235 return &elf_howto_table[(int) R_390_PC32DBL];
236 case BFD_RELOC_390_PLT32DBL:
237 return &elf_howto_table[(int) R_390_PLT32DBL];
238 case BFD_RELOC_390_GOTPCDBL:
239 return &elf_howto_table[(int) R_390_GOTPCDBL];
240 case BFD_RELOC_390_GOTENT:
241 return &elf_howto_table[(int) R_390_GOTENT];
5236c819
MS		 242 case BFD_RELOC_16_GOTOFF:
243 return &elf_howto_table[(int) R_390_GOTOFF16];
244 case BFD_RELOC_390_GOTPLT12:
245 return &elf_howto_table[(int) R_390_GOTPLT12];
246 case BFD_RELOC_390_GOTPLT16:
247 return &elf_howto_table[(int) R_390_GOTPLT16];
248 case BFD_RELOC_390_GOTPLT32:
249 return &elf_howto_table[(int) R_390_GOTPLT32];
250 case BFD_RELOC_390_GOTPLTENT:
251 return &elf_howto_table[(int) R_390_GOTPLTENT];
252 case BFD_RELOC_390_PLTOFF16:
253 return &elf_howto_table[(int) R_390_PLTOFF16];
254 case BFD_RELOC_390_PLTOFF32:
255 return &elf_howto_table[(int) R_390_PLTOFF32];
69fc87f1
MS		 256 case BFD_RELOC_390_TLS_LOAD:
257 return &elf_howto_table[(int) R_390_TLS_LOAD];
258 case BFD_RELOC_390_TLS_GDCALL:
259 return &elf_howto_table[(int) R_390_TLS_GDCALL];
260 case BFD_RELOC_390_TLS_LDCALL:
261 return &elf_howto_table[(int) R_390_TLS_LDCALL];
262 case BFD_RELOC_390_TLS_GD32:
263 return &elf_howto_table[(int) R_390_TLS_GD32];
264 case BFD_RELOC_390_TLS_GOTIE12:
265 return &elf_howto_table[(int) R_390_TLS_GOTIE12];
266 case BFD_RELOC_390_TLS_GOTIE32:
267 return &elf_howto_table[(int) R_390_TLS_GOTIE32];
268 case BFD_RELOC_390_TLS_LDM32:
269 return &elf_howto_table[(int) R_390_TLS_LDM32];
270 case BFD_RELOC_390_TLS_IE32:
271 return &elf_howto_table[(int) R_390_TLS_IE32];
272 case BFD_RELOC_390_TLS_IEENT:
273 return &elf_howto_table[(int) R_390_TLS_IEENT];
274 case BFD_RELOC_390_TLS_LE32:
275 return &elf_howto_table[(int) R_390_TLS_LE32];
276 case BFD_RELOC_390_TLS_LDO32:
277 return &elf_howto_table[(int) R_390_TLS_LDO32];
278 case BFD_RELOC_390_TLS_DTPMOD:
279 return &elf_howto_table[(int) R_390_TLS_DTPMOD];
280 case BFD_RELOC_390_TLS_DTPOFF:
281 return &elf_howto_table[(int) R_390_TLS_DTPOFF];
282 case BFD_RELOC_390_TLS_TPOFF:
283 return &elf_howto_table[(int) R_390_TLS_TPOFF];
bd1ea41b
MS		 284 case BFD_RELOC_390_20:
285 return &elf_howto_table[(int) R_390_20];
286 case BFD_RELOC_390_GOT20:
287 return &elf_howto_table[(int) R_390_GOT20];
288 case BFD_RELOC_390_GOTPLT20:
289 return &elf_howto_table[(int) R_390_GOTPLT20];
290 case BFD_RELOC_390_TLS_GOTIE20:
291 return &elf_howto_table[(int) R_390_TLS_GOTIE20];
470b557a
AK		 292 case BFD_RELOC_390_IRELATIVE:
293 return &elf_howto_table[(int) R_390_IRELATIVE];
0451c93c
MS		 294 case BFD_RELOC_VTABLE_INHERIT:
295 return &elf32_s390_vtinherit_howto;
296 case BFD_RELOC_VTABLE_ENTRY:
297 return &elf32_s390_vtentry_howto;
298 default:
299 break;
300 }
a85d7ed0
NC		 301 return 0;
302}
303
157090f7
AM		 304static reloc_howto_type *
305elf_s390_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
306 const char *r_name)
307{
308 unsigned int i;
309
310 for (i = 0; i < sizeof (elf_howto_table) / sizeof (elf_howto_table[0]); i++)
311 if (elf_howto_table[i].name != NULL
312 && strcasecmp (elf_howto_table[i].name, r_name) == 0)
313 return &elf_howto_table[i];
314
315 if (strcasecmp (elf32_s390_vtinherit_howto.name, r_name) == 0)
316 return &elf32_s390_vtinherit_howto;
317 if (strcasecmp (elf32_s390_vtentry_howto.name, r_name) == 0)
318 return &elf32_s390_vtentry_howto;
319
320 return NULL;
321}
322
a85d7ed0
NC		 323/* We need to use ELF32_R_TYPE so we have our own copy of this function,
324 and elf32-s390.c has its own copy. */
325
f3185997
NC		 326static bfd_boolean
327elf_s390_info_to_howto (bfd *abfd,
2c3fc389
NC		 328 arelent *cache_ptr,
329 Elf_Internal_Rela *dst)
a85d7ed0 330{
d0fb9a8d 331 unsigned int r_type = ELF32_R_TYPE(dst->r_info);
f3185997 332
d0fb9a8d 333 switch (r_type)
a85d7ed0
NC		 334 {
335 case R_390_GNU_VTINHERIT:
336 cache_ptr->howto = &elf32_s390_vtinherit_howto;
337 break;
338
339 case R_390_GNU_VTENTRY:
340 cache_ptr->howto = &elf32_s390_vtentry_howto;
341 break;
342
343 default:
d0fb9a8d
JJ		 344 if (r_type >= sizeof (elf_howto_table) / sizeof (elf_howto_table[0]))
345 {
695344c0 346 /* xgettext:c-format */
0aa13fee
AM		 347 _bfd_error_handler (_("%pB: unsupported relocation type %#x"),
348 abfd, r_type);
f3185997
NC		 349 bfd_set_error (bfd_error_bad_value);
350 return FALSE;
d0fb9a8d
JJ		 351 }
352 cache_ptr->howto = &elf_howto_table[r_type];
dc810e39 353 }
f3185997
NC		 354
355 return TRUE;
a85d7ed0
NC		 356}
357
69fc87f1
MS		 358/* A relocation function which doesn't do anything. */
359static bfd_reloc_status_type
2c3fc389
NC		 360s390_tls_reloc (bfd *abfd ATTRIBUTE_UNUSED,
361 arelent *reloc_entry,
362 asymbol *symbol ATTRIBUTE_UNUSED,
363 void * data ATTRIBUTE_UNUSED,
364 asection *input_section,
365 bfd *output_bfd,
366 char **error_message ATTRIBUTE_UNUSED)
69fc87f1
MS		 367{
368 if (output_bfd)
369 reloc_entry->address += input_section->output_offset;
370 return bfd_reloc_ok;
371}
372
bd1ea41b
MS		 373/* Handle the large displacement relocs. */
374static bfd_reloc_status_type
2c3fc389
NC		 375s390_elf_ldisp_reloc (bfd *abfd ATTRIBUTE_UNUSED,
376 arelent *reloc_entry,
377 asymbol *symbol,
378 void * data ATTRIBUTE_UNUSED,
379 asection *input_section,
380 bfd *output_bfd,
381 char **error_message ATTRIBUTE_UNUSED)
bd1ea41b
MS		 382{
383 reloc_howto_type *howto = reloc_entry->howto;
384 bfd_vma relocation;
385 bfd_vma insn;
68ffbac6 386
bd1ea41b
MS		 387 if (output_bfd != (bfd *) NULL
388 && (symbol->flags & BSF_SECTION_SYM) == 0
389 && (! howto->partial_inplace
390 || reloc_entry->addend == 0))
391 {
392 reloc_entry->address += input_section->output_offset;
393 return bfd_reloc_ok;
394 }
68ffbac6 395
bd1ea41b
MS		 396 if (output_bfd != NULL)
397 return bfd_reloc_continue;
68ffbac6 398
07515404 399 if (reloc_entry->address > bfd_get_section_limit (abfd, input_section))
bd1ea41b 400 return bfd_reloc_outofrange;
68ffbac6 401
bd1ea41b
MS		 402 relocation = (symbol->value
403 + symbol->section->output_section->vma
404 + symbol->section->output_offset);
405 relocation += reloc_entry->addend;
406 if (howto->pc_relative)
407 {
408 relocation -= (input_section->output_section->vma
409 + input_section->output_offset);
410 relocation -= reloc_entry->address;
411 }
68ffbac6 412
bd1ea41b
MS		 413 insn = bfd_get_32 (abfd, (bfd_byte *) data + reloc_entry->address);
414 insn |= (relocation & 0xfff) << 16 | (relocation & 0xff000) >> 4;
415 bfd_put_32 (abfd, insn, (bfd_byte *) data + reloc_entry->address);
68ffbac6 416
bd1ea41b
MS		 417 if ((bfd_signed_vma) relocation < - 0x80000
418 || (bfd_signed_vma) relocation > 0x7ffff)
419 return bfd_reloc_overflow;
420 else
421 return bfd_reloc_ok;
422}
423
b34976b6 424static bfd_boolean
2c3fc389 425elf_s390_is_local_label_name (bfd *abfd, const char *name)
a85d7ed0
NC		 426{
427 if (name[0] == '.' && (name[1] == 'X' || name[1] == 'L'))
b34976b6 428 return TRUE;
a85d7ed0
NC		 429
430 return _bfd_elf_is_local_label_name (abfd, name);
431}
432
433/* Functions for the 390 ELF linker. */
434
435/* The name of the dynamic interpreter. This is put in the .interp
436 section. */
437
87049b0d 438#define ELF_DYNAMIC_INTERPRETER "/lib/ld.so.1"
a85d7ed0 439
64285810
MS		 440/* If ELIMINATE_COPY_RELOCS is non-zero, the linker will try to avoid
441 copying dynamic variables from a shared lib into an app's dynbss
442 section, and instead use a dynamic relocation to point into the
443 shared lib. */
444#define ELIMINATE_COPY_RELOCS 1
445
a85d7ed0
NC		 446/* The size in bytes of the first entry in the procedure linkage table. */
447#define PLT_FIRST_ENTRY_SIZE 32
448/* The size in bytes of an entry in the procedure linkage table. */
dc810e39 449#define PLT_ENTRY_SIZE 32
a85d7ed0
NC		 450
451#define GOT_ENTRY_SIZE 4
452
470b557a
AK		 453#define RELA_ENTRY_SIZE sizeof (Elf32_External_Rela)
454
a85d7ed0
NC		 455/* The first three entries in a procedure linkage table are reserved,
456 and the initial contents are unimportant (we zero them out).
457 Subsequent entries look like this. See the SVR4 ABI 386
458 supplement to see how this works. */
459
460/* For the s390, simple addr offset can only be 0 - 4096.
461 To use the full 2 GB address space, several instructions
462 are needed to load an address in a register and execute
463 a branch( or just saving the address)
464
dc810e39 465 Furthermore, only r 0 and 1 are free to use!!! */
a85d7ed0
NC		 466
467/* The first 3 words in the GOT are then reserved.
468 Word 0 is the address of the dynamic table.
469 Word 1 is a pointer to a structure describing the object
470 Word 2 is used to point to the loader entry address.
471
4cc11e76 472 The code for position independent PLT entries looks like this:
a85d7ed0
NC		 473
474 r12 holds addr of the current GOT at entry to the PLT
475
476 The GOT holds the address in the PLT to be executed.
477 The loader then gets:
478 24(15) = Pointer to the structure describing the object.
a7e28bbe 479 28(15) = Offset into rela.plt
a85d7ed0
NC		 480
481 The loader must then find the module where the function is
482 and insert the address in the GOT.
483
484 Note: 390 can only address +- 64 K relative.
07d6d2b8
AM		 485 We check if offset > 65536, then make a relative branch -64xxx
486 back to a previous defined branch
487
488PLT1: BASR 1,0 # 2 bytes
489 L 1,22(1) # 4 bytes Load offset in GOT in r 1
490 L 1,(1,12) # 4 bytes Load address from GOT in r1
491 BCR 15,1 # 2 bytes Jump to address
492RET1: BASR 1,0 # 2 bytes Return from GOT 1st time
493 L 1,14(1) # 4 bytes Load offset in symol table in r1
a85d7ed0 494 BRC 15,-x # 4 bytes Jump to start of PLT
07d6d2b8
AM		 495 .word 0 # 2 bytes filler
496 .long ? # 4 bytes offset in GOT
497 .long ? # 4 bytes offset into rela.plt
a85d7ed0
NC		 498
499 This was the general case. There are two additional, optimizes PLT
500 definitions. One for GOT offsets < 4096 and one for GOT offsets < 32768.
501 First the one for GOT offsets < 4096:
502
07d6d2b8
AM		 503PLT1: L 1,<offset>(12) # 4 bytes Load address from GOT in R1
504 BCR 15,1 # 2 bytes Jump to address
505 .word 0,0,0 # 6 bytes filler
506RET1: BASR 1,0 # 2 bytes Return from GOT 1st time
507 L 1,14(1) # 4 bytes Load offset in rela.plt in r1
508 BRC 15,-x # 4 bytes Jump to start of PLT
509 .word 0,0,0 # 6 bytes filler
510 .long ? # 4 bytes offset into rela.plt
a85d7ed0
NC		 511
512 Second the one for GOT offsets < 32768:
513
07d6d2b8
AM		 514PLT1: LHI 1,<offset> # 4 bytes Load offset in GOT to r1
515 L 1,(1,12) # 4 bytes Load address from GOT to r1
516 BCR 15,1 # 2 bytes Jump to address
517 .word 0 # 2 bytes filler
518RET1: BASR 1,0 # 2 bytes Return from GOT 1st time
519 L 1,14(1) # 4 bytes Load offset in rela.plt in r1
520 BRC 15,-x # 4 bytes Jump to start of PLT
521 .word 0,0,0 # 6 bytes filler
522 .long ? # 4 bytes offset into rela.plt
a85d7ed0
NC		 523
524Total = 32 bytes per PLT entry
525
526 The code for static build PLT entries looks like this:
527
07d6d2b8
AM		 528PLT1: BASR 1,0 # 2 bytes
529 L 1,22(1) # 4 bytes Load address of GOT entry
530 L 1,0(0,1) # 4 bytes Load address from GOT in r1
531 BCR 15,1 # 2 bytes Jump to address
532RET1: BASR 1,0 # 2 bytes Return from GOT 1st time
533 L 1,14(1) # 4 bytes Load offset in symbol table in r1
a85d7ed0 534 BRC 15,-x # 4 bytes Jump to start of PLT
07d6d2b8
AM		 535 .word 0 # 2 bytes filler
536 .long ? # 4 bytes address of GOT entry
537 .long ? # 4 bytes offset into rela.plt */
a85d7ed0 538
9aa17453
AK		 539static const bfd_byte elf_s390_plt_entry[PLT_ENTRY_SIZE] =
540 {
07d6d2b8
AM		 541 0x0d, 0x10, /* basr %r1,%r0 */
542 0x58, 0x10, 0x10, 0x16, /* l %r1,22(%r1) */
543 0x58, 0x10, 0x10, 0x00, /* l %r1,0(%r1) */
544 0x07, 0xf1, /* br %r1 */
545 0x0d, 0x10, /* basr %r1,%r0 */
546 0x58, 0x10, 0x10, 0x0e, /* l %r1,14(%r1) */
547 0xa7, 0xf4, 0x00, 0x00, /* j first plt */
548 0x00, 0x00, /* padding */
549 0x00, 0x00, 0x00, 0x00, /* GOT offset */
550 0x00, 0x00, 0x00, 0x00 /* rela.plt offset */
9aa17453
AK		 551 };
552
553/* Generic PLT pic entry. */
554static const bfd_byte elf_s390_plt_pic_entry[PLT_ENTRY_SIZE] =
555 {
07d6d2b8
AM		 556 0x0d, 0x10, /* basr %r1,%r0 */
557 0x58, 0x10, 0x10, 0x16, /* l %r1,22(%r1) */
558 0x58, 0x11, 0xc0, 0x00, /* l %r1,0(%r1,%r12) */
559 0x07, 0xf1, /* br %r1 */
560 0x0d, 0x10, /* basr %r1,%r0 */
561 0x58, 0x10, 0x10, 0x0e, /* l %r1,14(%r1) */
562 0xa7, 0xf4, 0x00, 0x00, /* j first plt */
563 0x00, 0x00, /* padding */
564 0x00, 0x00, 0x00, 0x00, /* GOT offset */
565 0x00, 0x00, 0x00, 0x00 /* rela.plt offset */
9aa17453
AK		 566 };
567
568/* Optimized PLT pic entry for GOT offset < 4k. xx will be replaced
569 when generating the PLT slot with the GOT offset. */
570static const bfd_byte elf_s390_plt_pic12_entry[PLT_ENTRY_SIZE] =
571 {
07d6d2b8
AM		 572 0x58, 0x10, 0xc0, 0x00, /* l %r1,xx(%r12) */
573 0x07, 0xf1, /* br %r1 */
574 0x00, 0x00, 0x00, 0x00, /* padding */
9aa17453 575 0x00, 0x00,
07d6d2b8
AM		 576 0x0d, 0x10, /* basr %r1,%r0 */
577 0x58, 0x10, 0x10, 0x0e, /* l %r1,14(%r1) */
578 0xa7, 0xf4, 0x00, 0x00, /* j first plt */
9aa17453
AK		 579 0x00, 0x00, 0x00, 0x00,
580 0x00, 0x00, 0x00, 0x00
581 };
582
583/* Optimized PLT pic entry for GOT offset < 32k. xx will be replaced
584 when generating the PLT slot with the GOT offset. */
585static const bfd_byte elf_s390_plt_pic16_entry[PLT_ENTRY_SIZE] =
586 {
07d6d2b8
AM		 587 0xa7, 0x18, 0x00, 0x00, /* lhi %r1,xx */
588 0x58, 0x11, 0xc0, 0x00, /* l %r1,0(%r1,%r12) */
589 0x07, 0xf1, /* br %r1 */
9aa17453 590 0x00, 0x00,
07d6d2b8
AM		 591 0x0d, 0x10, /* basr %r1,%r0 */
592 0x58, 0x10, 0x10, 0x0e, /* l %r1,14(%r1) */
593 0xa7, 0xf4, 0x00, 0x00, /* j first plt */
9aa17453
AK		 594 0x00, 0x00, 0x00, 0x00,
595 0x00, 0x00, 0x00, 0x00,
596 0x00, 0x00
597 };
a85d7ed0 598
a7e28bbe 599/* The first PLT entry pushes the offset into the rela.plt
a85d7ed0
NC		 600 from R1 onto the stack at 8(15) and the loader object info
601 at 12(15), loads the loader address in R1 and jumps to it. */
602
603/* The first entry in the PLT for PIC code:
604
605PLT0:
07d6d2b8
AM		 606 ST 1,28(15) # R1 has offset into rela.plt
607 L 1,4(12) # Get loader ino(object struct address)
608 ST 1,24(15) # Store address
609 L 1,8(12) # Entry address of loader in R1
610 BR 1 # Jump to loader
a85d7ed0
NC		 611
612 The first entry in the PLT for static code:
613
614PLT0:
07d6d2b8 615 ST 1,28(15) # R1 has offset into rela.plt
a85d7ed0 616 BASR 1,0
07d6d2b8
AM		 617 L 1,18(0,1) # Get address of GOT
618 MVC 24(4,15),4(1) # Move loader ino to stack
619 L 1,8(1) # Get address of loader
620 BR 1 # Jump to loader
621 .word 0 # filler
622 .long got # address of GOT */
a85d7ed0 623
9aa17453
AK		 624static const bfd_byte elf_s390_plt_first_entry[PLT_FIRST_ENTRY_SIZE] =
625 {
07d6d2b8
AM		 626 0x50, 0x10, 0xf0, 0x1c, /* st %r1,28(%r15) */
627 0x0d, 0x10, /* basr %r1,%r0 */
628 0x58, 0x10, 0x10, 0x12, /* l %r1,18(%r1) */
629 0xd2, 0x03, 0xf0, 0x18, 0x10, 0x04, /* mvc 24(4,%r15),4(%r1) */
630 0x58, 0x10, 0x10, 0x08, /* l %r1,8(%r1) */
631 0x07, 0xf1, /* br %r1 */
9aa17453
AK		 632 0x00, 0x00, 0x00, 0x00,
633 0x00, 0x00, 0x00, 0x00,
634 0x00, 0x00
635 };
636
637static const bfd_byte elf_s390_plt_pic_first_entry[PLT_FIRST_ENTRY_SIZE] =
638 {
07d6d2b8
AM		 639 0x50, 0x10, 0xf0, 0x1c, /* st %r1,28(%r15) */
640 0x58, 0x10, 0xc0, 0x04, /* l %r1,4(%r12) */
641 0x50, 0x10, 0xf0, 0x18, /* st %r1,24(%r15) */
642 0x58, 0x10, 0xc0, 0x08, /* l %r1,8(%r12) */
643 0x07, 0xf1, /* br %r1 */
9aa17453
AK		 644 0x00, 0x00, 0x00, 0x00,
645 0x00, 0x00, 0x00, 0x00,
646 0x00, 0x00, 0x00, 0x00,
647 0x00, 0x00
648 };
a85d7ed0 649
a85d7ed0
NC		 650
651/* s390 ELF linker hash entry. */
652
653struct elf_s390_link_hash_entry
654{
0451c93c 655 struct elf_link_hash_entry elf;
a85d7ed0 656
0451c93c 657 /* Track dynamic relocs copied for this symbol. */
00d8c7a9 658 struct elf_dyn_relocs *dyn_relocs;
5236c819
MS		 659
660 /* Number of GOTPLT references for a function. */
661 bfd_signed_vma gotplt_refcount;
69fc87f1
MS		 662
663#define GOT_UNKNOWN 0
664#define GOT_NORMAL 1
665#define GOT_TLS_GD 2
666#define GOT_TLS_IE 3
667#define GOT_TLS_IE_NLT 4
668 unsigned char tls_type;
470b557a
AK		 669
670 /* For pointer equality reasons we might need to change the symbol
671 type from STT_GNU_IFUNC to STT_FUNC together with its value and
672 section entry. So after alloc_dynrelocs only these values should
673 be used. In order to check whether a symbol is IFUNC use
674 s390_is_ifunc_symbol_p. */
675 bfd_vma ifunc_resolver_address;
676 asection *ifunc_resolver_section;
a85d7ed0
NC		 677};
678
69fc87f1
MS		 679#define elf_s390_hash_entry(ent) \
680 ((struct elf_s390_link_hash_entry *)(ent))
681
470b557a
AK		 682/* This structure represents an entry in the local PLT list needed for
683 local IFUNC symbols. */
684struct plt_entry
685{
686 /* The section of the local symbol.
687 Set in relocate_section and used in finish_dynamic_sections. */
688 asection *sec;
689
690 union
691 {
692 bfd_signed_vma refcount;
693 bfd_vma offset;
694 } plt;
695};
696
0ffa91dd
NC		 697/* NOTE: Keep this structure in sync with
698 the one declared in elf64-s390.c. */
69fc87f1
MS		 699struct elf_s390_obj_tdata
700{
701 struct elf_obj_tdata root;
702
470b557a
AK		 703 /* A local PLT is needed for ifunc symbols. */
704 struct plt_entry *local_plt;
705
0ffa91dd 706 /* TLS type for each local got entry. */
69fc87f1
MS		 707 char *local_got_tls_type;
708};
709
710#define elf_s390_tdata(abfd) \
711 ((struct elf_s390_obj_tdata *) (abfd)->tdata.any)
712
470b557a
AK		 713#define elf_s390_local_plt(abfd) \
714 (elf_s390_tdata (abfd)->local_plt)
715
69fc87f1
MS		 716#define elf_s390_local_got_tls_type(abfd) \
717 (elf_s390_tdata (abfd)->local_got_tls_type)
718
0ffa91dd
NC		 719#define is_s390_elf(bfd) \
720 (bfd_get_flavour (bfd) == bfd_target_elf_flavour \
721 && elf_tdata (bfd) != NULL \
4dfe6ac6 722 && elf_object_id (bfd) == S390_ELF_DATA)
0ffa91dd 723
69fc87f1 724static bfd_boolean
62d7a5f6 725elf_s390_mkobject (bfd *abfd)
69fc87f1 726{
0ffa91dd 727 return bfd_elf_allocate_object (abfd, sizeof (struct elf_s390_obj_tdata),
4dfe6ac6 728 S390_ELF_DATA);
69fc87f1
MS		 729}
730
731static bfd_boolean
2c3fc389 732elf_s390_object_p (bfd *abfd)
69fc87f1 733{
69fc87f1
MS		 734 /* Set the right machine number for an s390 elf32 file. */
735 return bfd_default_set_arch_mach (abfd, bfd_arch_s390, bfd_mach_s390_31);
736}
737
a85d7ed0
NC		 738/* s390 ELF linker hash table. */
739
740struct elf_s390_link_hash_table
741{
0451c93c 742 struct elf_link_hash_table elf;
a85d7ed0 743
0451c93c 744 /* Short-cuts to get to dynamic linker sections. */
470b557a 745 asection *irelifunc;
ec338859 746
2c3fc389
NC		 747 union
748 {
69fc87f1
MS		 749 bfd_signed_vma refcount;
750 bfd_vma offset;
751 } tls_ldm_got;
752
87d72d41
AM		 753 /* Small local sym cache. */
754 struct sym_cache sym_cache;
0451c93c 755};
a85d7ed0
NC		 756
757/* Get the s390 ELF linker hash table from a link_info structure. */
758
759#define elf_s390_hash_table(p) \
4dfe6ac6
NC		 760 (elf_hash_table_id ((struct elf_link_hash_table *) ((p)->hash)) \
761 == S390_ELF_DATA ? ((struct elf_s390_link_hash_table *) ((p)->hash)) : NULL)
a85d7ed0 762
470b557a
AK		 763#undef ELF64
764#include "elf-s390-common.c"
765
a85d7ed0
NC		 766/* Create an entry in an s390 ELF linker hash table. */
767
768static struct bfd_hash_entry *
2c3fc389
NC		 769link_hash_newfunc (struct bfd_hash_entry *entry,
770 struct bfd_hash_table *table,
771 const char *string)
a85d7ed0 772{
a85d7ed0
NC		 773 /* Allocate the structure if it has not already been allocated by a
774 subclass. */
0451c93c
MS		 775 if (entry == NULL)
776 {
777 entry = bfd_hash_allocate (table,
778 sizeof (struct elf_s390_link_hash_entry));
779 if (entry == NULL)
780 return entry;
781 }
ec338859 782
a85d7ed0 783 /* Call the allocation method of the superclass. */
0451c93c
MS		 784 entry = _bfd_elf_link_hash_newfunc (entry, table, string);
785 if (entry != NULL)
a85d7ed0 786 {
0451c93c 787 struct elf_s390_link_hash_entry *eh;
ec338859 788
0451c93c
MS		 789 eh = (struct elf_s390_link_hash_entry *) entry;
790 eh->dyn_relocs = NULL;
5236c819 791 eh->gotplt_refcount = 0;
69fc87f1 792 eh->tls_type = GOT_UNKNOWN;
470b557a
AK		 793 eh->ifunc_resolver_address = 0;
794 eh->ifunc_resolver_section = NULL;
a85d7ed0
NC		 795 }
796
0451c93c 797 return entry;
a85d7ed0
NC		 798}
799
800/* Create an s390 ELF linker hash table. */
801
802static struct bfd_link_hash_table *
2c3fc389 803elf_s390_link_hash_table_create (bfd *abfd)
a85d7ed0
NC		 804{
805 struct elf_s390_link_hash_table *ret;
dc810e39 806 bfd_size_type amt = sizeof (struct elf_s390_link_hash_table);
a85d7ed0 807
7bf52ea2 808 ret = (struct elf_s390_link_hash_table *) bfd_zmalloc (amt);
0451c93c 809 if (ret == NULL)
a85d7ed0
NC		 810 return NULL;
811
66eb6687 812 if (!_bfd_elf_link_hash_table_init (&ret->elf, abfd, link_hash_newfunc,
4dfe6ac6
NC		 813 sizeof (struct elf_s390_link_hash_entry),
814 S390_ELF_DATA))
a85d7ed0 815 {
e2d34d7d 816 free (ret);
a85d7ed0
NC		 817 return NULL;
818 }
819
0451c93c
MS		 820 return &ret->elf.root;
821}
822
0451c93c
MS		 823/* Copy the extra info we tack onto an elf_link_hash_entry. */
824
825static void
2c3fc389
NC		 826elf_s390_copy_indirect_symbol (struct bfd_link_info *info,
827 struct elf_link_hash_entry *dir,
828 struct elf_link_hash_entry *ind)
0451c93c
MS		 829{
830 struct elf_s390_link_hash_entry *edir, *eind;
831
832 edir = (struct elf_s390_link_hash_entry *) dir;
833 eind = (struct elf_s390_link_hash_entry *) ind;
834
835 if (eind->dyn_relocs != NULL)
836 {
837 if (edir->dyn_relocs != NULL)
838 {
00d8c7a9
AK		 839 struct elf_dyn_relocs **pp;
840 struct elf_dyn_relocs *p;
0451c93c 841
fcfa13d2 842 /* Add reloc counts against the indirect sym to the direct sym
0451c93c
MS		 843 list. Merge any entries against the same section. */
844 for (pp = &eind->dyn_relocs; (p = *pp) != NULL; )
845 {
00d8c7a9 846 struct elf_dyn_relocs *q;
0451c93c
MS		 847
848 for (q = edir->dyn_relocs; q != NULL; q = q->next)
849 if (q->sec == p->sec)
850 {
851 q->pc_count += p->pc_count;
852 q->count += p->count;
853 *pp = p->next;
854 break;
855 }
856 if (q == NULL)
857 pp = &p->next;
858 }
859 *pp = edir->dyn_relocs;
860 }
861
862 edir->dyn_relocs = eind->dyn_relocs;
863 eind->dyn_relocs = NULL;
864 }
865
69fc87f1
MS		 866 if (ind->root.type == bfd_link_hash_indirect
867 && dir->got.refcount <= 0)
868 {
869 edir->tls_type = eind->tls_type;
870 eind->tls_type = GOT_UNKNOWN;
871 }
872
64285810
MS		 873 if (ELIMINATE_COPY_RELOCS
874 && ind->root.type != bfd_link_hash_indirect
f5385ebf
AM		 875 && dir->dynamic_adjusted)
876 {
877 /* If called to transfer flags for a weakdef during processing
878 of elf_adjust_dynamic_symbol, don't copy non_got_ref.
879 We clear it ourselves for ELIMINATE_COPY_RELOCS. */
e81830c5
AM		 880 if (dir->versioned != versioned_hidden)
881 dir->ref_dynamic |= ind->ref_dynamic;
f5385ebf
AM		 882 dir->ref_regular |= ind->ref_regular;
883 dir->ref_regular_nonweak |= ind->ref_regular_nonweak;
884 dir->needs_plt |= ind->needs_plt;
885 }
64285810 886 else
fcfa13d2 887 _bfd_elf_link_hash_copy_indirect (info, dir, ind);
0451c93c 888}
a85d7ed0 889
69fc87f1 890static int
2c3fc389
NC		 891elf_s390_tls_transition (struct bfd_link_info *info,
892 int r_type,
893 int is_local)
69fc87f1 894{
0e1862bb 895 if (bfd_link_pic (info))
69fc87f1
MS		 896 return r_type;
897
898 switch (r_type)
899 {
900 case R_390_TLS_GD32:
901 case R_390_TLS_IE32:
902 if (is_local)
903 return R_390_TLS_LE32;
904 return R_390_TLS_IE32;
905 case R_390_TLS_GOTIE32:
906 if (is_local)
907 return R_390_TLS_LE32;
908 return R_390_TLS_GOTIE32;
909 case R_390_TLS_LDM32:
910 return R_390_TLS_LE32;
911 }
912
913 return r_type;
914}
915
a85d7ed0
NC		 916/* Look through the relocs for a section during the first phase, and
917 allocate space in the global offset table or procedure linkage
918 table. */
919
b34976b6 920static bfd_boolean
2c3fc389
NC		 921elf_s390_check_relocs (bfd *abfd,
922 struct bfd_link_info *info,
923 asection *sec,
924 const Elf_Internal_Rela *relocs)
a85d7ed0 925{
0451c93c 926 struct elf_s390_link_hash_table *htab;
a85d7ed0
NC		 927 Elf_Internal_Shdr *symtab_hdr;
928 struct elf_link_hash_entry **sym_hashes;
a85d7ed0
NC		 929 const Elf_Internal_Rela *rel;
930 const Elf_Internal_Rela *rel_end;
a85d7ed0 931 asection *sreloc;
5236c819 932 bfd_signed_vma *local_got_refcounts;
69fc87f1 933 int tls_type, old_tls_type;
470b557a 934 Elf_Internal_Sym *isym;
a85d7ed0 935
0e1862bb 936 if (bfd_link_relocatable (info))
b34976b6 937 return TRUE;
a85d7ed0 938
0ffa91dd
NC		 939 BFD_ASSERT (is_s390_elf (abfd));
940
0451c93c 941 htab = elf_s390_hash_table (info);
0ffa91dd 942 symtab_hdr = &elf_symtab_hdr (abfd);
a85d7ed0 943 sym_hashes = elf_sym_hashes (abfd);
5236c819 944 local_got_refcounts = elf_local_got_refcounts (abfd);
a85d7ed0 945
a85d7ed0
NC		 946 sreloc = NULL;
947
948 rel_end = relocs + sec->reloc_count;
949 for (rel = relocs; rel < rel_end; rel++)
950 {
69fc87f1 951 unsigned int r_type;
d42c267e 952 unsigned int r_symndx;
a85d7ed0
NC		 953 struct elf_link_hash_entry *h;
954
955 r_symndx = ELF32_R_SYM (rel->r_info);
956
0451c93c
MS		 957 if (r_symndx >= NUM_SHDR_ENTRIES (symtab_hdr))
958 {
695344c0 959 /* xgettext:c-format */
871b3ab2 960 _bfd_error_handler (_("%pB: bad symbol index: %d"),
4eca0228 961 abfd, r_symndx);
b34976b6 962 return FALSE;
0451c93c
MS		 963 }
964
a85d7ed0 965 if (r_symndx < symtab_hdr->sh_info)
470b557a
AK		 966 {
967 /* A local symbol. */
968 isym = bfd_sym_from_r_symndx (&htab->sym_cache,
969 abfd, r_symndx);
970 if (isym == NULL)
971 return FALSE;
972
973 if (ELF_ST_TYPE (isym->st_info) == STT_GNU_IFUNC)
974 {
975 struct plt_entry *plt;
976
0cb79d69
AK		 977 if (htab->elf.dynobj == NULL)
978 htab->elf.dynobj = abfd;
979
470b557a
AK		 980 if (!s390_elf_create_ifunc_sections (htab->elf.dynobj, info))
981 return FALSE;
982
983 if (local_got_refcounts == NULL)
984 {
985 if (!elf_s390_allocate_local_syminfo (abfd, symtab_hdr))
986 return FALSE;
987 local_got_refcounts = elf_local_got_refcounts (abfd);
988 }
989 plt = elf_s390_local_plt (abfd);
990 plt[r_symndx].plt.refcount++;
991 }
992 h = NULL;
993 }
a85d7ed0 994 else
973a3492
L		 995 {
996 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
997 while (h->root.type == bfd_link_hash_indirect
998 || h->root.type == bfd_link_hash_warning)
999 h = (struct elf_link_hash_entry *) h->root.u.i.link;
1000 }
a85d7ed0 1001
5236c819
MS		 1002 /* Create got section and local_got_refcounts array if they
1003 are needed. */
69fc87f1
MS		 1004 r_type = elf_s390_tls_transition (info,
1005 ELF32_R_TYPE (rel->r_info),
1006 h == NULL);
1007 switch (r_type)
a85d7ed0
NC		 1008 {
1009 case R_390_GOT12:
5236c819 1010 case R_390_GOT16:
bd1ea41b 1011 case R_390_GOT20:
a85d7ed0 1012 case R_390_GOT32:
befc3abb 1013 case R_390_GOTENT:
5236c819
MS		 1014 case R_390_GOTPLT12:
1015 case R_390_GOTPLT16:
bd1ea41b 1016 case R_390_GOTPLT20:
5236c819
MS		 1017 case R_390_GOTPLT32:
1018 case R_390_GOTPLTENT:
69fc87f1
MS		 1019 case R_390_TLS_GD32:
1020 case R_390_TLS_GOTIE12:
bd1ea41b 1021 case R_390_TLS_GOTIE20:
69fc87f1
MS		 1022 case R_390_TLS_GOTIE32:
1023 case R_390_TLS_IEENT:
1024 case R_390_TLS_IE32:
1025 case R_390_TLS_LDM32:
5236c819
MS		 1026 if (h == NULL
1027 && local_got_refcounts == NULL)
a85d7ed0 1028 {
470b557a 1029 if (!elf_s390_allocate_local_syminfo (abfd, symtab_hdr))
5236c819 1030 return FALSE;
470b557a 1031 local_got_refcounts = elf_local_got_refcounts (abfd);
a85d7ed0 1032 }
5236c819
MS		 1033 /* Fall through. */
1034 case R_390_GOTOFF16:
1035 case R_390_GOTOFF32:
0451c93c 1036 case R_390_GOTPC:
befc3abb 1037 case R_390_GOTPCDBL:
f41345a7 1038 if (htab->elf.sgot == NULL)
0451c93c
MS		 1039 {
1040 if (htab->elf.dynobj == NULL)
1041 htab->elf.dynobj = abfd;
ce558b89 1042 if (!_bfd_elf_create_got_section (htab->elf.dynobj, info))
b34976b6 1043 return FALSE;
0451c93c 1044 }
5236c819
MS		 1045 }
1046
470b557a
AK		 1047 if (h != NULL)
1048 {
1049 if (htab->elf.dynobj == NULL)
1050 htab->elf.dynobj = abfd;
1051 if (!s390_elf_create_ifunc_sections (htab->elf.dynobj, info))
1052 return FALSE;
1053
1054 /* Make sure an IFUNC symbol defined in a non-shared object
1055 always gets a PLT slot. */
1056 if (s390_is_ifunc_symbol_p (h) && h->def_regular)
1057 {
1058 /* The symbol is called by the dynamic loader in order
1059 to resolve the relocation. So it is in fact also
1060 referenced. */
1061 h->ref_regular = 1;
1062 h->needs_plt = 1;
1063 }
1064 }
69fc87f1 1065 switch (r_type)
5236c819 1066 {
5236c819
MS		 1067 case R_390_GOTPC:
1068 case R_390_GOTPCDBL:
470b557a
AK		 1069 /* These relocs do not need a GOT slot. They just load the
1070 GOT pointer itself or address something else relative to
1071 the GOT. Since the GOT pointer has been set up above we
1072 are done. */
a85d7ed0 1073 break;
01a53584
AK		 1074 case R_390_GOTOFF16:
1075 case R_390_GOTOFF32:
1076 if (h == NULL || !s390_is_ifunc_symbol_p (h) || !h->def_regular)
1077 break;
1a0670f3 1078 /* Fall through. */
a85d7ed0 1079
fb798c50 1080 case R_390_PLT12DBL:
26e41594 1081 case R_390_PLT16DBL:
fb798c50 1082 case R_390_PLT24DBL:
26e41594 1083 case R_390_PLT32DBL:
a85d7ed0 1084 case R_390_PLT32:
5236c819
MS		 1085 case R_390_PLTOFF16:
1086 case R_390_PLTOFF32:
a85d7ed0 1087 /* This symbol requires a procedure linkage table entry. We
26e41594
AM		 1088 actually build the entry in adjust_dynamic_symbol,
1089 because this might be a case of linking PIC code which is
1090 never referenced by a dynamic object, in which case we
1091 don't need to generate a procedure linkage table entry
1092 after all. */
a85d7ed0
NC		 1093
1094 /* If this is a local symbol, we resolve it directly without
26e41594 1095 creating a procedure linkage table entry. */
5236c819
MS		 1096 if (h != NULL)
1097 {
f5385ebf 1098 h->needs_plt = 1;
5236c819
MS		 1099 h->plt.refcount += 1;
1100 }
1101 break;
a85d7ed0 1102
5236c819
MS		 1103 case R_390_GOTPLT12:
1104 case R_390_GOTPLT16:
bd1ea41b 1105 case R_390_GOTPLT20:
5236c819
MS		 1106 case R_390_GOTPLT32:
1107 case R_390_GOTPLTENT:
1108 /* This symbol requires either a procedure linkage table entry
1109 or an entry in the local got. We actually build the entry
1110 in adjust_dynamic_symbol because whether this is really a
1111 global reference can change and with it the fact if we have
1112 to create a plt entry or a local got entry. To be able to
1113 make a once global symbol a local one we have to keep track
1114 of the number of gotplt references that exist for this
1115 symbol. */
1116 if (h != NULL)
1117 {
1118 ((struct elf_s390_link_hash_entry *) h)->gotplt_refcount++;
f5385ebf 1119 h->needs_plt = 1;
5236c819
MS		 1120 h->plt.refcount += 1;
1121 }
1122 else
1123 local_got_refcounts[r_symndx] += 1;
a85d7ed0
NC		 1124 break;
1125
69fc87f1
MS		 1126 case R_390_TLS_LDM32:
1127 htab->tls_ldm_got.refcount += 1;
1128 break;
1129
1130 case R_390_TLS_IE32:
1131 case R_390_TLS_GOTIE12:
bd1ea41b 1132 case R_390_TLS_GOTIE20:
69fc87f1
MS		 1133 case R_390_TLS_GOTIE32:
1134 case R_390_TLS_IEENT:
0e1862bb 1135 if (bfd_link_pic (info))
69fc87f1 1136 info->flags |= DF_STATIC_TLS;
ae9a127f 1137 /* Fall through. */
69fc87f1
MS		 1138
1139 case R_390_GOT12:
26e41594 1140 case R_390_GOT16:
bd1ea41b 1141 case R_390_GOT20:
69fc87f1
MS		 1142 case R_390_GOT32:
1143 case R_390_GOTENT:
1144 case R_390_TLS_GD32:
1145 /* This symbol requires a global offset table entry. */
1146 switch (r_type)
1147 {
1148 default:
1149 case R_390_GOT12:
1150 case R_390_GOT16:
bd1ea41b 1151 case R_390_GOT20:
69fc87f1
MS		 1152 case R_390_GOT32:
1153 case R_390_GOTENT:
1154 tls_type = GOT_NORMAL;
1155 break;
1156 case R_390_TLS_GD32:
1157 tls_type = GOT_TLS_GD;
1158 break;
1159 case R_390_TLS_IE32:
1160 case R_390_TLS_GOTIE32:
1161 tls_type = GOT_TLS_IE;
1162 break;
1163 case R_390_TLS_GOTIE12:
bd1ea41b 1164 case R_390_TLS_GOTIE20:
69fc87f1
MS		 1165 case R_390_TLS_IEENT:
1166 tls_type = GOT_TLS_IE_NLT;
1167 break;
1168 }
1169
1170 if (h != NULL)
1171 {
1172 h->got.refcount += 1;
1173 old_tls_type = elf_s390_hash_entry(h)->tls_type;
1174 }
1175 else
1176 {
1177 local_got_refcounts[r_symndx] += 1;
1178 old_tls_type = elf_s390_local_got_tls_type (abfd) [r_symndx];
1179 }
1180 /* If a TLS symbol is accessed using IE at least once,
1181 there is no point to use dynamic model for it. */
1182 if (old_tls_type != tls_type && old_tls_type != GOT_UNKNOWN)
1183 {
1184 if (old_tls_type == GOT_NORMAL || tls_type == GOT_NORMAL)
1185 {
4eca0228 1186 _bfd_error_handler
695344c0 1187 /* xgettext:c-format */
871b3ab2 1188 (_("%pB: `%s' accessed both as normal and thread local symbol"),
d003868e 1189 abfd, h->root.root.string);
69fc87f1
MS		 1190 return FALSE;
1191 }
1192 if (old_tls_type > tls_type)
1193 tls_type = old_tls_type;
1194 }
1195
1196 if (old_tls_type != tls_type)
1197 {
1198 if (h != NULL)
1199 elf_s390_hash_entry (h)->tls_type = tls_type;
1200 else
1201 elf_s390_local_got_tls_type (abfd) [r_symndx] = tls_type;
1202 }
1203
1204 if (r_type != R_390_TLS_IE32)
1205 break;
ae9a127f 1206 /* Fall through. */
69fc87f1
MS		 1207
1208 case R_390_TLS_LE32:
e00d879a
AK		 1209 /* For static linking and executables this reloc will be
1210 calculated at linktime otherwise a TLS_TPOFF runtime
1211 reloc will be generated. */
0e1862bb 1212 if (r_type == R_390_TLS_LE32 && bfd_link_pie (info))
e00d879a
AK		 1213 break;
1214
0e1862bb 1215 if (!bfd_link_pic (info))
69fc87f1
MS		 1216 break;
1217 info->flags |= DF_STATIC_TLS;
ae9a127f 1218 /* Fall through. */
69fc87f1 1219
26e41594
AM		 1220 case R_390_8:
1221 case R_390_16:
a85d7ed0 1222 case R_390_32:
26e41594 1223 case R_390_PC16:
fb798c50 1224 case R_390_PC12DBL:
26e41594 1225 case R_390_PC16DBL:
fb798c50 1226 case R_390_PC24DBL:
befc3abb 1227 case R_390_PC32DBL:
a85d7ed0 1228 case R_390_PC32:
99ba5125 1229 if (h != NULL && bfd_link_executable (info))
0451c93c
MS		 1230 {
1231 /* If this reloc is in a read-only section, we might
1232 need a copy reloc. We can't check reliably at this
1233 stage whether the section is read-only, as input
1234 sections have not yet been mapped to output sections.
1235 Tentatively set the flag for now, and correct in
1236 adjust_dynamic_symbol. */
f5385ebf 1237 h->non_got_ref = 1;
ec338859 1238
0e1862bb 1239 if (!bfd_link_pic (info))
470b557a
AK		 1240 {
1241 /* We may need a .plt entry if the function this reloc
1242 refers to is in a shared lib. */
1243 h->plt.refcount += 1;
1244 }
0451c93c 1245 }
a85d7ed0
NC		 1246
1247 /* If we are creating a shared library, and this is a reloc
0451c93c
MS		 1248 against a global symbol, or a non PC relative reloc
1249 against a local symbol, then we need to copy the reloc
1250 into the shared library. However, if we are linking with
1251 -Bsymbolic, we do not need to copy a reloc against a
1252 global symbol which is defined in an object we are
1253 including in the link (i.e., DEF_REGULAR is set). At
1254 this point we have not seen all the input files, so it is
1255 possible that DEF_REGULAR is not set now but will be set
1256 later (it is never cleared). In case of a weak definition,
1257 DEF_REGULAR may be cleared later by a strong definition in
1258 a shared library. We account for that possibility below by
1259 storing information in the relocs_copied field of the hash
1260 table entry. A similar situation occurs when creating
1261 shared libraries and symbol visibility changes render the
1262 symbol local.
1263
1264 If on the other hand, we are creating an executable, we
1265 may need to keep relocations for symbols satisfied by a
1266 dynamic library if we manage to avoid copy relocs for the
1267 symbol. */
0e1862bb 1268 if ((bfd_link_pic (info)
0451c93c 1269 && (sec->flags & SEC_ALLOC) != 0
ec338859 1270 && ((ELF32_R_TYPE (rel->r_info) != R_390_PC16
fb798c50 1271 && ELF32_R_TYPE (rel->r_info) != R_390_PC12DBL
0451c93c 1272 && ELF32_R_TYPE (rel->r_info) != R_390_PC16DBL
fb798c50 1273 && ELF32_R_TYPE (rel->r_info) != R_390_PC24DBL
befc3abb 1274 && ELF32_R_TYPE (rel->r_info) != R_390_PC32DBL
0451c93c
MS		 1275 && ELF32_R_TYPE (rel->r_info) != R_390_PC32)
1276 || (h != NULL
8c21ca21 1277 && (! SYMBOLIC_BIND (info, h)
0451c93c 1278 || h->root.type == bfd_link_hash_defweak
f5385ebf 1279 || !h->def_regular))))
64285810 1280 || (ELIMINATE_COPY_RELOCS
0e1862bb 1281 && !bfd_link_pic (info)
0451c93c
MS		 1282 && (sec->flags & SEC_ALLOC) != 0
1283 && h != NULL
1284 && (h->root.type == bfd_link_hash_defweak
f5385ebf 1285 || !h->def_regular)))
a85d7ed0 1286 {
00d8c7a9
AK		 1287 struct elf_dyn_relocs *p;
1288 struct elf_dyn_relocs **head;
ec338859 1289
0451c93c
MS		 1290 /* We must copy these reloc types into the output file.
1291 Create a reloc section in dynobj and make room for
1292 this reloc. */
a85d7ed0
NC		 1293 if (sreloc == NULL)
1294 {
0451c93c
MS		 1295 if (htab->elf.dynobj == NULL)
1296 htab->elf.dynobj = abfd;
a85d7ed0 1297
83bac4b0
NC		 1298 sreloc = _bfd_elf_make_dynamic_reloc_section
1299 (sec, htab->elf.dynobj, 2, abfd, /*rela?*/ TRUE);
1300
a85d7ed0 1301 if (sreloc == NULL)
83bac4b0 1302 return FALSE;
a85d7ed0
NC		 1303 }
1304
0451c93c
MS		 1305 /* If this is a global symbol, we count the number of
1306 relocations we need for this symbol. */
1307 if (h != NULL)
a85d7ed0 1308 {
ec338859 1309 head = &((struct elf_s390_link_hash_entry *) h)->dyn_relocs;
0451c93c
MS		 1310 }
1311 else
1312 {
ec338859
AM		 1313 /* Track dynamic relocs needed for local syms too.
1314 We really need local syms available to do this
1315 easily. Oh well. */
ec338859 1316 asection *s;
6edfbbad 1317 void *vpp;
ae9a127f 1318
87d72d41
AM		 1319 isym = bfd_sym_from_r_symndx (&htab->sym_cache,
1320 abfd, r_symndx);
1321 if (isym == NULL)
b34976b6 1322 return FALSE;
ec338859 1323
87d72d41
AM		 1324 s = bfd_section_from_elf_index (abfd, isym->st_shndx);
1325 if (s == NULL)
1326 s = sec;
1327
6edfbbad 1328 vpp = &elf_section_data (s)->local_dynrel;
00d8c7a9 1329 head = (struct elf_dyn_relocs **) vpp;
ec338859
AM		 1330 }
1331
1332 p = *head;
1333 if (p == NULL || p->sec != sec)
1334 {
1335 bfd_size_type amt = sizeof *p;
ae9a127f 1336
00d8c7a9 1337 p = ((struct elf_dyn_relocs *)
ec338859
AM		 1338 bfd_alloc (htab->elf.dynobj, amt));
1339 if (p == NULL)
b34976b6 1340 return FALSE;
ec338859
AM		 1341 p->next = *head;
1342 *head = p;
1343 p->sec = sec;
1344 p->count = 0;
1345 p->pc_count = 0;
a85d7ed0 1346 }
ec338859
AM		 1347
1348 p->count += 1;
1349 if (ELF32_R_TYPE (rel->r_info) == R_390_PC16
fb798c50 1350 || ELF32_R_TYPE (rel->r_info) == R_390_PC12DBL
ec338859 1351 || ELF32_R_TYPE (rel->r_info) == R_390_PC16DBL
fb798c50 1352 || ELF32_R_TYPE (rel->r_info) == R_390_PC24DBL
befc3abb 1353 || ELF32_R_TYPE (rel->r_info) == R_390_PC32DBL
ec338859
AM		 1354 || ELF32_R_TYPE (rel->r_info) == R_390_PC32)
1355 p->pc_count += 1;
a85d7ed0 1356 }
a85d7ed0 1357 break;
ec338859 1358
a85d7ed0
NC		 1359 /* This relocation describes the C++ object vtable hierarchy.
1360 Reconstruct it for later use during GC. */
26e41594 1361 case R_390_GNU_VTINHERIT:
c152c796 1362 if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
26e41594
AM		 1363 return FALSE;
1364 break;
ec338859 1365
a85d7ed0
NC		 1366 /* This relocation describes which C++ vtable entries are actually
1367 used. Record for later use during GC. */
26e41594 1368 case R_390_GNU_VTENTRY:
d17e0c6e
JB		 1369 BFD_ASSERT (h != NULL);
1370 if (h != NULL
1371 && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
26e41594
AM		 1372 return FALSE;
1373 break;
ec338859 1374
a85d7ed0
NC		 1375 default:
1376 break;
1377 }
1378 }
1379
b34976b6 1380 return TRUE;
a85d7ed0
NC		 1381}
1382
1383/* Return the section that should be marked against GC for a given
1384 relocation. */
1385
1386static asection *
07adf181
AM		 1387elf_s390_gc_mark_hook (asection *sec,
1388 struct bfd_link_info *info,
1389 Elf_Internal_Rela *rel,
1390 struct elf_link_hash_entry *h,
1391 Elf_Internal_Sym *sym)
a85d7ed0
NC		 1392{
1393 if (h != NULL)
07adf181
AM		 1394 switch (ELF32_R_TYPE (rel->r_info))
1395 {
1396 case R_390_GNU_VTINHERIT:
1397 case R_390_GNU_VTENTRY:
1398 return NULL;
1399 }
1400 return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym);
a85d7ed0 1401
a85d7ed0
NC		 1402}
1403
5236c819
MS		 1404/* Make sure we emit a GOT entry if the symbol was supposed to have a PLT
1405 entry but we found we will not create any. Called when we find we will
1406 not have any PLT for this symbol, by for example
1407 elf_s390_adjust_dynamic_symbol when we're doing a proper dynamic link,
1408 or elf_s390_size_dynamic_sections if no dynamic sections will be
1409 created (we're only linking static objects). */
1410
1411static void
2c3fc389 1412elf_s390_adjust_gotplt (struct elf_s390_link_hash_entry *h)
5236c819
MS		 1413{
1414 if (h->elf.root.type == bfd_link_hash_warning)
1415 h = (struct elf_s390_link_hash_entry *) h->elf.root.u.i.link;
1416
1417 if (h->gotplt_refcount <= 0)
1418 return;
1419
1420 /* We simply add the number of gotplt references to the number
1421 * of got references for this symbol. */
1422 h->elf.got.refcount += h->gotplt_refcount;
1423 h->gotplt_refcount = -1;
1424}
1425
63c1f59d
AM		 1426/* Find dynamic relocs for H that apply to read-only sections. */
1427
1428static asection *
1429readonly_dynrelocs (struct elf_link_hash_entry *h)
1430{
1431 struct elf_dyn_relocs *p;
1432
1433 for (p = elf_s390_hash_entry (h)->dyn_relocs; p != NULL; p = p->next)
1434 {
1435 asection *s = p->sec->output_section;
1436
1437 if (s != NULL && (s->flags & SEC_READONLY) != 0)
1438 return p->sec;
1439 }
1440 return NULL;
1441}
1442
a85d7ed0
NC		 1443/* Adjust a symbol defined by a dynamic object and referenced by a
1444 regular object. The current definition is in some section of the
1445 dynamic object, but we're not including those sections. We have to
1446 change the definition to something the rest of the link can
1447 understand. */
1448
b34976b6 1449static bfd_boolean
2c3fc389
NC		 1450elf_s390_adjust_dynamic_symbol (struct bfd_link_info *info,
1451 struct elf_link_hash_entry *h)
a85d7ed0 1452{
0451c93c 1453 struct elf_s390_link_hash_table *htab;
5474d94f 1454 asection *s, *srel;
a85d7ed0 1455
470b557a
AK		 1456 /* STT_GNU_IFUNC symbol must go through PLT. */
1457 if (s390_is_ifunc_symbol_p (h))
d8ee9e44
AK		 1458 {
1459 /* All local STT_GNU_IFUNC references must be treated as local
1460 calls via local PLT. */
1461 if (h->ref_regular && SYMBOL_CALLS_LOCAL (info, h))
1462 {
1463 bfd_size_type pc_count = 0, count = 0;
1464 struct elf_dyn_relocs **pp;
1465 struct elf_s390_link_hash_entry *eh;
1466 struct elf_dyn_relocs *p;
1467
1468 eh = (struct elf_s390_link_hash_entry *) h;
1469 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; )
1470 {
1471 pc_count += p->pc_count;
1472 p->count -= p->pc_count;
1473 p->pc_count = 0;
1474 count += p->count;
1475 if (p->count == 0)
1476 *pp = p->next;
1477 else
1478 pp = &p->next;
1479 }
1480
1481 if (pc_count || count)
1482 {
1483 h->needs_plt = 1;
1484 h->non_got_ref = 1;
1485 if (h->plt.refcount <= 0)
1486 h->plt.refcount = 1;
1487 else
1488 h->plt.refcount += 1;
1489 }
1490 }
1491
1492 if (h->plt.refcount <= 0)
1493 {
1494 h->plt.offset = (bfd_vma) -1;
1495 h->needs_plt = 0;
1496 }
1497 return TRUE;
1498 }
470b557a 1499
a85d7ed0
NC		 1500 /* If this is a function, put it in the procedure linkage table. We
1501 will fill in the contents of the procedure linkage table later
cedb70c5 1502 (although we could actually do it here). */
a85d7ed0 1503 if (h->type == STT_FUNC
f5385ebf 1504 || h->needs_plt)
a85d7ed0 1505 {
0451c93c 1506 if (h->plt.refcount <= 0
8c21ca21
AK		 1507 || SYMBOL_CALLS_LOCAL (info, h)
1508 || (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
1509 && h->root.type != bfd_link_hash_undefweak))
a85d7ed0
NC		 1510 {
1511 /* This case can occur if we saw a PLT32 reloc in an input
26e41594
AM		 1512 file, but the symbol was never referred to by a dynamic
1513 object, or if all references were garbage collected. In
a85d7ed0
NC		 1514 such a case, we don't actually need to build a procedure
1515 linkage table, and we can just do a PC32 reloc instead. */
1516 h->plt.offset = (bfd_vma) -1;
f5385ebf 1517 h->needs_plt = 0;
5236c819 1518 elf_s390_adjust_gotplt((struct elf_s390_link_hash_entry *) h);
a85d7ed0
NC		 1519 }
1520
b34976b6 1521 return TRUE;
a85d7ed0 1522 }
bbd7ec4a 1523 else
0451c93c
MS		 1524 /* It's possible that we incorrectly decided a .plt reloc was
1525 needed for an R_390_PC32 reloc to a non-function sym in
1526 check_relocs. We can't decide accurately between function and
1527 non-function syms in check-relocs; Objects loaded later in
1528 the link may change h->type. So fix it now. */
bbd7ec4a 1529 h->plt.offset = (bfd_vma) -1;
a85d7ed0
NC		 1530
1531 /* If this is a weak symbol, and there is a real definition, the
1532 processor independent code will have arranged for us to see the
1533 real definition first, and we can just use the same value. */
60d67dc8 1534 if (h->is_weakalias)
a85d7ed0 1535 {
60d67dc8
AM		 1536 struct elf_link_hash_entry *def = weakdef (h);
1537 BFD_ASSERT (def->root.type == bfd_link_hash_defined);
1538 h->root.u.def.section = def->root.u.def.section;
1539 h->root.u.def.value = def->root.u.def.value;
64285810 1540 if (ELIMINATE_COPY_RELOCS || info->nocopyreloc)
60d67dc8 1541 h->non_got_ref = def->non_got_ref;
b34976b6 1542 return TRUE;
a85d7ed0
NC		 1543 }
1544
1545 /* This is a reference to a symbol defined by a dynamic object which
1546 is not a function. */
1547
1548 /* If we are creating a shared library, we must presume that the
1549 only references to the symbol are via the global offset table.
1550 For such cases we need not do anything here; the relocations will
1551 be handled correctly by relocate_section. */
0e1862bb 1552 if (bfd_link_pic (info))
b34976b6 1553 return TRUE;
a85d7ed0
NC		 1554
1555 /* If there are no references to this symbol that do not use the
1556 GOT, we don't need to generate a copy reloc. */
f5385ebf 1557 if (!h->non_got_ref)
b34976b6 1558 return TRUE;
a85d7ed0 1559
0451c93c
MS		 1560 /* If -z nocopyreloc was given, we won't generate them either. */
1561 if (info->nocopyreloc)
1562 {
f5385ebf 1563 h->non_got_ref = 0;
b34976b6 1564 return TRUE;
0451c93c
MS		 1565 }
1566
3bf083ed
AM		 1567 /* If we don't find any dynamic relocs in read-only sections, then
1568 we'll be keeping the dynamic relocs and avoiding the copy reloc. */
1569 if (ELIMINATE_COPY_RELOCS && !readonly_dynrelocs (h))
0451c93c 1570 {
3bf083ed
AM		 1571 h->non_got_ref = 0;
1572 return TRUE;
0451c93c
MS		 1573 }
1574
a85d7ed0
NC		 1575 /* We must allocate the symbol in our .dynbss section, which will
1576 become part of the .bss section of the executable. There will be
1577 an entry for this symbol in the .dynsym section. The dynamic
1578 object will contain position independent code, so all references
1579 from the dynamic object to this symbol will go through the global
1580 offset table. The dynamic linker will use the .dynsym entry to
1581 determine the address it must put in the global offset table, so
1582 both the dynamic object and the regular object will refer to the
1583 same memory location for the variable. */
1584
0451c93c 1585 htab = elf_s390_hash_table (info);
a85d7ed0 1586
0451c93c
MS		 1587 /* We must generate a R_390_COPY reloc to tell the dynamic linker to
1588 copy the initial value out of the dynamic object and into the
1589 runtime process image. */
5474d94f
AM		 1590 if ((h->root.u.def.section->flags & SEC_READONLY) != 0)
1591 {
1592 s = htab->elf.sdynrelro;
1593 srel = htab->elf.sreldynrelro;
1594 }
1595 else
1596 {
1597 s = htab->elf.sdynbss;
1598 srel = htab->elf.srelbss;
1599 }
1d7e9d18 1600 if ((h->root.u.def.section->flags & SEC_ALLOC) != 0 && h->size != 0)
a85d7ed0 1601 {
5474d94f 1602 srel->size += sizeof (Elf32_External_Rela);
f5385ebf 1603 h->needs_copy = 1;
a85d7ed0
NC		 1604 }
1605
6cabe1ea 1606 return _bfd_elf_adjust_dynamic_copy (info, h, s);
a85d7ed0
NC		 1607}
1608
0451c93c
MS		 1609/* Allocate space in .plt, .got and associated reloc sections for
1610 dynamic relocs. */
1611
b34976b6 1612static bfd_boolean
2c3fc389 1613allocate_dynrelocs (struct elf_link_hash_entry *h, void * inf)
0451c93c
MS		 1614{
1615 struct bfd_link_info *info;
1616 struct elf_s390_link_hash_table *htab;
470b557a 1617 struct elf_s390_link_hash_entry *eh = (struct elf_s390_link_hash_entry *)h;
00d8c7a9 1618 struct elf_dyn_relocs *p;
0451c93c 1619
e92d460e 1620 if (h->root.type == bfd_link_hash_indirect)
b34976b6 1621 return TRUE;
0451c93c
MS		 1622
1623 info = (struct bfd_link_info *) inf;
1624 htab = elf_s390_hash_table (info);
1625
470b557a
AK		 1626 /* Since STT_GNU_IFUNC symbol must go through PLT, we handle it
1627 here if it is defined and referenced in a non-shared object. */
1628 if (s390_is_ifunc_symbol_p (h) && h->def_regular)
61643fba 1629 return s390_elf_allocate_ifunc_dyn_relocs (info, h);
470b557a
AK		 1630 else if (htab->elf.dynamic_sections_created
1631 && h->plt.refcount > 0)
0451c93c
MS		 1632 {
1633 /* Make sure this symbol is output as a dynamic symbol.
1634 Undefined weak syms won't yet be marked as dynamic. */
1635 if (h->dynindx == -1
f5385ebf 1636 && !h->forced_local)
0451c93c 1637 {
c152c796 1638 if (! bfd_elf_link_record_dynamic_symbol (info, h))
b34976b6 1639 return FALSE;
0451c93c
MS		 1640 }
1641
0e1862bb 1642 if (bfd_link_pic (info)
4ec72bde 1643 || WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, 0, h))
0451c93c 1644 {
f41345a7 1645 asection *s = htab->elf.splt;
0451c93c
MS		 1646
1647 /* If this is the first .plt entry, make room for the special
1648 first entry. */
eea6121a
AM		 1649 if (s->size == 0)
1650 s->size += PLT_FIRST_ENTRY_SIZE;
0451c93c 1651
eea6121a 1652 h->plt.offset = s->size;
0451c93c
MS		 1653
1654 /* If this symbol is not defined in a regular file, and we are
1655 not generating a shared library, then set the symbol to this
1656 location in the .plt. This is required to make function
1657 pointers compare as equal between the normal executable and
1658 the shared library. */
0e1862bb 1659 if (! bfd_link_pic (info)
f5385ebf 1660 && !h->def_regular)
0451c93c
MS		 1661 {
1662 h->root.u.def.section = s;
1663 h->root.u.def.value = h->plt.offset;
1664 }
ec338859 1665
0451c93c 1666 /* Make room for this entry. */
eea6121a 1667 s->size += PLT_ENTRY_SIZE;
ec338859 1668
5a12586d 1669 /* We also need to make an entry in the .got.plt section. */
f41345a7 1670 htab->elf.sgotplt->size += GOT_ENTRY_SIZE;
0451c93c
MS		 1671
1672 /* We also need to make an entry in the .rela.plt section. */
f41345a7 1673 htab->elf.srelplt->size += sizeof (Elf32_External_Rela);
0451c93c
MS		 1674 }
1675 else
1676 {
07d6d2b8 1677 h->plt.offset = (bfd_vma) -1;
f5385ebf 1678 h->needs_plt = 0;
5236c819 1679 elf_s390_adjust_gotplt((struct elf_s390_link_hash_entry *) h);
0451c93c 1680 }
ec338859 1681 }
0451c93c
MS		 1682 else
1683 {
1684 h->plt.offset = (bfd_vma) -1;
f5385ebf 1685 h->needs_plt = 0;
5236c819 1686 elf_s390_adjust_gotplt((struct elf_s390_link_hash_entry *) h);
ec338859
AM		 1687 }
1688
69fc87f1
MS		 1689 /* If R_390_TLS_{IE32,GOTIE32,GOTIE12,IEENT} symbol is now local to
1690 the binary, we can optimize a bit. IE32 and GOTIE32 get converted
1691 to R_390_TLS_LE32 requiring no TLS entry. For GOTIE12 and IEENT
1692 we can save the dynamic TLS relocation. */
1693 if (h->got.refcount > 0
0e1862bb 1694 && !bfd_link_pic (info)
69fc87f1
MS		 1695 && h->dynindx == -1
1696 && elf_s390_hash_entry(h)->tls_type >= GOT_TLS_IE)
0451c93c 1697 {
69fc87f1
MS		 1698 if (elf_s390_hash_entry(h)->tls_type == GOT_TLS_IE_NLT)
1699 /* For the GOTIE access without a literal pool entry the offset has
1700 to be stored somewhere. The immediate value in the instruction
1701 is not bit enough so the value is stored in the got. */
1702 {
f41345a7
AK		 1703 h->got.offset = htab->elf.sgot->size;
1704 htab->elf.sgot->size += GOT_ENTRY_SIZE;
69fc87f1
MS		 1705 }
1706 else
1707 h->got.offset = (bfd_vma) -1;
1708 }
1709 else if (h->got.refcount > 0)
ceada896 1710 {
0451c93c 1711 asection *s;
b34976b6 1712 bfd_boolean dyn;
69fc87f1 1713 int tls_type = elf_s390_hash_entry(h)->tls_type;
0451c93c
MS		 1714
1715 /* Make sure this symbol is output as a dynamic symbol.
1716 Undefined weak syms won't yet be marked as dynamic. */
1717 if (h->dynindx == -1
f5385ebf 1718 && !h->forced_local)
0451c93c 1719 {
c152c796 1720 if (! bfd_elf_link_record_dynamic_symbol (info, h))
b34976b6 1721 return FALSE;
0451c93c
MS		 1722 }
1723
f41345a7 1724 s = htab->elf.sgot;
eea6121a
AM		 1725 h->got.offset = s->size;
1726 s->size += GOT_ENTRY_SIZE;
69fc87f1
MS		 1727 /* R_390_TLS_GD32 needs 2 consecutive GOT slots. */
1728 if (tls_type == GOT_TLS_GD)
eea6121a 1729 s->size += GOT_ENTRY_SIZE;
0451c93c 1730 dyn = htab->elf.dynamic_sections_created;
69fc87f1
MS		 1731 /* R_390_TLS_IE32 needs one dynamic relocation,
1732 R_390_TLS_GD32 needs one if local symbol and two if global. */
1733 if ((tls_type == GOT_TLS_GD && h->dynindx == -1)
1734 || tls_type >= GOT_TLS_IE)
f41345a7 1735 htab->elf.srelgot->size += sizeof (Elf32_External_Rela);
69fc87f1 1736 else if (tls_type == GOT_TLS_GD)
f41345a7 1737 htab->elf.srelgot->size += 2 * sizeof (Elf32_External_Rela);
82058a73
MS		 1738 else if ((ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
1739 || h->root.type != bfd_link_hash_undefweak)
0e1862bb 1740 && (bfd_link_pic (info)
82058a73 1741 || WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, 0, h)))
f41345a7 1742 htab->elf.srelgot->size += sizeof (Elf32_External_Rela);
0451c93c
MS		 1743 }
1744 else
1745 h->got.offset = (bfd_vma) -1;
1746
0451c93c 1747 if (eh->dyn_relocs == NULL)
b34976b6 1748 return TRUE;
0451c93c
MS		 1749
1750 /* In the shared -Bsymbolic case, discard space allocated for
1751 dynamic pc-relative relocs against symbols which turn out to be
1752 defined in regular objects. For the normal shared case, discard
1753 space for pc-relative relocs that have become local due to symbol
1754 visibility changes. */
1755
0e1862bb 1756 if (bfd_link_pic (info))
0451c93c 1757 {
8c21ca21 1758 if (SYMBOL_CALLS_LOCAL (info, h))
0451c93c 1759 {
00d8c7a9 1760 struct elf_dyn_relocs **pp;
0451c93c
MS		 1761
1762 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; )
1763 {
1764 p->count -= p->pc_count;
1765 p->pc_count = 0;
1766 if (p->count == 0)
1767 *pp = p->next;
1768 else
1769 pp = &p->next;
1770 }
1771 }
82058a73
MS		 1772
1773 /* Also discard relocs on undefined weak syms with non-default
1774 visibility. */
22d606e9 1775 if (eh->dyn_relocs != NULL
82058a73 1776 && h->root.type == bfd_link_hash_undefweak)
22d606e9 1777 {
b27bb18f
L		 1778 if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
1779 || UNDEFWEAK_NO_DYNAMIC_RELOC (info, h))
22d606e9
AM		 1780 eh->dyn_relocs = NULL;
1781
1782 /* Make sure undefined weak symbols are output as a dynamic
1783 symbol in PIEs. */
1784 else if (h->dynindx == -1
1785 && !h->forced_local)
1786 {
1787 if (! bfd_elf_link_record_dynamic_symbol (info, h))
1788 return FALSE;
1789 }
1790 }
0451c93c 1791 }
64285810 1792 else if (ELIMINATE_COPY_RELOCS)
0451c93c
MS		 1793 {
1794 /* For the non-shared case, discard space for relocs against
1795 symbols which turn out to need copy relocs or are not
1796 dynamic. */
1797
f5385ebf
AM		 1798 if (!h->non_got_ref
1799 && ((h->def_dynamic
1800 && !h->def_regular)
0451c93c
MS		 1801 || (htab->elf.dynamic_sections_created
1802 && (h->root.type == bfd_link_hash_undefweak
1803 || h->root.type == bfd_link_hash_undefined))))
1804 {
1805 /* Make sure this symbol is output as a dynamic symbol.
1806 Undefined weak syms won't yet be marked as dynamic. */
1807 if (h->dynindx == -1
f5385ebf 1808 && !h->forced_local)
0451c93c 1809 {
c152c796 1810 if (! bfd_elf_link_record_dynamic_symbol (info, h))
b34976b6 1811 return FALSE;
0451c93c
MS		 1812 }
1813
1814 /* If that succeeded, we know we'll be keeping all the
1815 relocs. */
1816 if (h->dynindx != -1)
1817 goto keep;
1818 }
1819
1820 eh->dyn_relocs = NULL;
1821
ec338859 1822 keep: ;
0451c93c
MS		 1823 }
1824
1825 /* Finally, allocate space. */
1826 for (p = eh->dyn_relocs; p != NULL; p = p->next)
1827 {
1828 asection *sreloc = elf_section_data (p->sec)->sreloc;
ae9a127f 1829
eea6121a 1830 sreloc->size += p->count * sizeof (Elf32_External_Rela);
0451c93c
MS		 1831 }
1832
b34976b6 1833 return TRUE;
0451c93c
MS		 1834}
1835
63c1f59d
AM		 1836/* Set DF_TEXTREL if we find any dynamic relocs that apply to
1837 read-only sections. */
0451c93c 1838
b34976b6 1839static bfd_boolean
63c1f59d 1840maybe_set_textrel (struct elf_link_hash_entry *h, void *info_p)
0451c93c 1841{
63c1f59d 1842 asection *sec;
0451c93c 1843
63c1f59d
AM		 1844 if (h->root.type == bfd_link_hash_indirect)
1845 return TRUE;
0451c93c 1846
63c1f59d
AM		 1847 sec = readonly_dynrelocs (h);
1848 if (sec != NULL)
1849 {
1850 struct bfd_link_info *info = (struct bfd_link_info *) info_p;
0451c93c 1851
63c1f59d
AM		 1852 info->flags |= DF_TEXTREL;
1853 info->callbacks->minfo
c1c8c1ef 1854 (_("%pB: dynamic relocation against `%pT' in read-only section `%pA'\n"),
63c1f59d 1855 sec->owner, h->root.root.string, sec);
0451c93c 1856
63c1f59d
AM		 1857 /* Not an error, just cut short the traversal. */
1858 return FALSE;
0451c93c 1859 }
b34976b6 1860 return TRUE;
0451c93c
MS		 1861}
1862
a85d7ed0
NC		 1863/* Set the sizes of the dynamic sections. */
1864
b34976b6 1865static bfd_boolean
2c3fc389
NC		 1866elf_s390_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED,
1867 struct bfd_link_info *info)
a85d7ed0 1868{
0451c93c 1869 struct elf_s390_link_hash_table *htab;
a85d7ed0
NC		 1870 bfd *dynobj;
1871 asection *s;
b34976b6 1872 bfd_boolean relocs;
0451c93c 1873 bfd *ibfd;
a85d7ed0 1874
0451c93c
MS		 1875 htab = elf_s390_hash_table (info);
1876 dynobj = htab->elf.dynobj;
1877 if (dynobj == NULL)
1878 abort ();
a85d7ed0 1879
0451c93c 1880 if (htab->elf.dynamic_sections_created)
a85d7ed0
NC		 1881 {
1882 /* Set the contents of the .interp section to the interpreter. */
9b8b325a 1883 if (bfd_link_executable (info) && !info->nointerp)
a85d7ed0 1884 {
3d4d4302 1885 s = bfd_get_linker_section (dynobj, ".interp");
0451c93c
MS		 1886 if (s == NULL)
1887 abort ();
eea6121a 1888 s->size = sizeof ELF_DYNAMIC_INTERPRETER;
a85d7ed0
NC		 1889 s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
1890 }
1891 }
a85d7ed0 1892
0451c93c
MS		 1893 /* Set up .got offsets for local syms, and space for local dynamic
1894 relocs. */
c72f2fb2 1895 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next)
a85d7ed0 1896 {
0451c93c
MS		 1897 bfd_signed_vma *local_got;
1898 bfd_signed_vma *end_local_got;
69fc87f1 1899 char *local_tls_type;
0451c93c
MS		 1900 bfd_size_type locsymcount;
1901 Elf_Internal_Shdr *symtab_hdr;
1902 asection *srela;
470b557a
AK		 1903 struct plt_entry *local_plt;
1904 unsigned int i;
a85d7ed0 1905
0ffa91dd 1906 if (! is_s390_elf (ibfd))
a85d7ed0
NC		 1907 continue;
1908
0451c93c 1909 for (s = ibfd->sections; s != NULL; s = s->next)
a85d7ed0 1910 {
00d8c7a9 1911 struct elf_dyn_relocs *p;
0451c93c 1912
6edfbbad 1913 for (p = elf_section_data (s)->local_dynrel; p != NULL; p = p->next)
a85d7ed0 1914 {
ec338859
AM		 1915 if (!bfd_is_abs_section (p->sec)
1916 && bfd_is_abs_section (p->sec->output_section))
1917 {
1918 /* Input section has been discarded, either because
1919 it is a copy of a linkonce section or due to
1920 linker script /DISCARD/, so we'll be discarding
1921 the relocs too. */
1922 }
248866a8 1923 else if (p->count != 0)
ec338859
AM		 1924 {
1925 srela = elf_section_data (p->sec)->sreloc;
eea6121a 1926 srela->size += p->count * sizeof (Elf32_External_Rela);
248866a8
AM		 1927 if ((p->sec->output_section->flags & SEC_READONLY) != 0)
1928 info->flags |= DF_TEXTREL;
ec338859 1929 }
a85d7ed0
NC		 1930 }
1931 }
0451c93c
MS		 1932
1933 local_got = elf_local_got_refcounts (ibfd);
1934 if (!local_got)
1935 continue;
1936
0ffa91dd 1937 symtab_hdr = &elf_symtab_hdr (ibfd);
0451c93c
MS		 1938 locsymcount = symtab_hdr->sh_info;
1939 end_local_got = local_got + locsymcount;
69fc87f1 1940 local_tls_type = elf_s390_local_got_tls_type (ibfd);
f41345a7
AK		 1941 s = htab->elf.sgot;
1942 srela = htab->elf.srelgot;
69fc87f1 1943 for (; local_got < end_local_got; ++local_got, ++local_tls_type)
a85d7ed0 1944 {
0451c93c 1945 if (*local_got > 0)
a85d7ed0 1946 {
eea6121a
AM		 1947 *local_got = s->size;
1948 s->size += GOT_ENTRY_SIZE;
69fc87f1 1949 if (*local_tls_type == GOT_TLS_GD)
eea6121a 1950 s->size += GOT_ENTRY_SIZE;
0e1862bb 1951 if (bfd_link_pic (info))
eea6121a 1952 srela->size += sizeof (Elf32_External_Rela);
a85d7ed0
NC		 1953 }
1954 else
0451c93c
MS		 1955 *local_got = (bfd_vma) -1;
1956 }
470b557a
AK		 1957 local_plt = elf_s390_local_plt (ibfd);
1958 for (i = 0; i < symtab_hdr->sh_info; i++)
1959 {
1960 if (local_plt[i].plt.refcount > 0)
1961 {
1962 local_plt[i].plt.offset = htab->elf.iplt->size;
1963 htab->elf.iplt->size += PLT_ENTRY_SIZE;
1964 htab->elf.igotplt->size += GOT_ENTRY_SIZE;
1965 htab->elf.irelplt->size += RELA_ENTRY_SIZE;
1966 }
1967 else
07d6d2b8 1968 local_plt[i].plt.offset = (bfd_vma) -1;
470b557a 1969 }
0451c93c
MS		 1970 }
1971
69fc87f1
MS		 1972 if (htab->tls_ldm_got.refcount > 0)
1973 {
1974 /* Allocate 2 got entries and 1 dynamic reloc for R_390_TLS_LDM32
1975 relocs. */
f41345a7
AK		 1976 htab->tls_ldm_got.offset = htab->elf.sgot->size;
1977 htab->elf.sgot->size += 2 * GOT_ENTRY_SIZE;
1978 htab->elf.srelgot->size += sizeof (Elf32_External_Rela);
69fc87f1
MS		 1979 }
1980 else
1981 htab->tls_ldm_got.offset = -1;
1982
0451c93c
MS		 1983 /* Allocate global sym .plt and .got entries, and space for global
1984 sym dynamic relocs. */
2c3fc389 1985 elf_link_hash_traverse (&htab->elf, allocate_dynrelocs, info);
0451c93c
MS		 1986
1987 /* We now have determined the sizes of the various dynamic sections.
1988 Allocate memory for them. */
b34976b6 1989 relocs = FALSE;
0451c93c
MS		 1990 for (s = dynobj->sections; s != NULL; s = s->next)
1991 {
1992 if ((s->flags & SEC_LINKER_CREATED) == 0)
1993 continue;
1994
f41345a7
AK		 1995 if (s == htab->elf.splt
1996 || s == htab->elf.sgot
1997 || s == htab->elf.sgotplt
9d19e4fd 1998 || s == htab->elf.sdynbss
5474d94f 1999 || s == htab->elf.sdynrelro
470b557a
AK		 2000 || s == htab->elf.iplt
2001 || s == htab->elf.igotplt
2002 || s == htab->irelifunc)
0451c93c
MS		 2003 {
2004 /* Strip this section if we don't need it; see the
2005 comment below. */
a85d7ed0 2006 }
0112cd26 2007 else if (CONST_STRNEQ (bfd_get_section_name (dynobj, s), ".rela"))
0451c93c 2008 {
eea6121a 2009 if (s->size != 0)
b34976b6 2010 relocs = TRUE;
ec338859 2011
0451c93c
MS		 2012 /* We use the reloc_count field as a counter if we need
2013 to copy relocs into the output file. */
2014 s->reloc_count = 0;
2015 }
2016 else
a85d7ed0
NC		 2017 {
2018 /* It's not one of our sections, so don't allocate space. */
2019 continue;
2020 }
2021
eea6121a 2022 if (s->size == 0)
a85d7ed0 2023 {
0451c93c
MS		 2024 /* If we don't need this section, strip it from the
2025 output file. This is to handle .rela.bss and
2026 .rela.plt. We must create it in
2027 create_dynamic_sections, because it must be created
2028 before the linker maps input sections to output
2029 sections. The linker does that before
2030 adjust_dynamic_symbol is called, and it is that
2031 function which decides whether anything needs to go
2032 into these sections. */
2033
8423293d 2034 s->flags |= SEC_EXCLUDE;
a85d7ed0
NC		 2035 continue;
2036 }
2037
c456f082
AM		 2038 if ((s->flags & SEC_HAS_CONTENTS) == 0)
2039 continue;
2040
0451c93c
MS		 2041 /* Allocate memory for the section contents. We use bfd_zalloc
2042 here in case unused entries are not reclaimed before the
2043 section's contents are written out. This should not happen,
2044 but this way if it does, we get a R_390_NONE reloc instead
2045 of garbage. */
eea6121a 2046 s->contents = (bfd_byte *) bfd_zalloc (dynobj, s->size);
0451c93c 2047 if (s->contents == NULL)
b34976b6 2048 return FALSE;
a85d7ed0 2049 }
ec338859 2050
0451c93c 2051 if (htab->elf.dynamic_sections_created)
a85d7ed0
NC		 2052 {
2053 /* Add some entries to the .dynamic section. We fill in the
2054 values later, in elf_s390_finish_dynamic_sections, but we
2055 must add the entries now so that we get the correct size for
2056 the .dynamic section. The DT_DEBUG entry is filled in by the
2057 dynamic linker and used by the debugger. */
dc810e39 2058#define add_dynamic_entry(TAG, VAL) \
5a580b3a 2059 _bfd_elf_add_dynamic_entry (info, TAG, VAL)
ec338859 2060
0e1862bb 2061 if (bfd_link_executable (info))
a85d7ed0 2062 {
dc810e39 2063 if (!add_dynamic_entry (DT_DEBUG, 0))
b34976b6 2064 return FALSE;
a85d7ed0 2065 }
ec338859 2066
f41345a7 2067 if (htab->elf.splt->size != 0)
a85d7ed0 2068 {
dc810e39
AM		 2069 if (!add_dynamic_entry (DT_PLTGOT, 0)
2070 || !add_dynamic_entry (DT_PLTRELSZ, 0)
2071 || !add_dynamic_entry (DT_PLTREL, DT_RELA)
2072 || !add_dynamic_entry (DT_JMPREL, 0))
b34976b6 2073 return FALSE;
a85d7ed0 2074 }
ec338859 2075
a85d7ed0 2076 if (relocs)
26e41594
AM		 2077 {
2078 if (!add_dynamic_entry (DT_RELA, 0)
2079 || !add_dynamic_entry (DT_RELASZ, 0)
2080 || !add_dynamic_entry (DT_RELAENT, sizeof (Elf32_External_Rela)))
b34976b6 2081 return FALSE;
a85d7ed0 2082
0451c93c
MS		 2083 /* If any dynamic relocs apply to a read-only section,
2084 then we need a DT_TEXTREL entry. */
248866a8 2085 if ((info->flags & DF_TEXTREL) == 0)
63c1f59d 2086 elf_link_hash_traverse (&htab->elf, maybe_set_textrel, info);
ec338859 2087
0451c93c
MS		 2088 if ((info->flags & DF_TEXTREL) != 0)
2089 {
2090 if (!add_dynamic_entry (DT_TEXTREL, 0))
b34976b6 2091 return FALSE;
0451c93c 2092 }
a85d7ed0
NC		 2093 }
2094 }
dc810e39 2095#undef add_dynamic_entry
ec338859 2096
b34976b6 2097 return TRUE;
a85d7ed0
NC		 2098}
2099
69fc87f1
MS		 2100/* Return the base VMA address which should be subtracted from real addresses
2101 when resolving @dtpoff relocation.
2102 This is PT_TLS segment p_vaddr. */
2103
2104static bfd_vma
2c3fc389 2105dtpoff_base (struct bfd_link_info *info)
69fc87f1 2106{
e1918d23
AM		 2107 /* If tls_sec is NULL, we should have signalled an error already. */
2108 if (elf_hash_table (info)->tls_sec == NULL)
69fc87f1 2109 return 0;
e1918d23 2110 return elf_hash_table (info)->tls_sec->vma;
69fc87f1
MS		 2111}
2112
2113/* Return the relocation value for @tpoff relocation
2114 if STT_TLS virtual address is ADDRESS. */
2115
2116static bfd_vma
2c3fc389 2117tpoff (struct bfd_link_info *info, bfd_vma address)
69fc87f1 2118{
e1918d23 2119 struct elf_link_hash_table *htab = elf_hash_table (info);
69fc87f1 2120
e1918d23
AM		 2121 /* If tls_sec is NULL, we should have signalled an error already. */
2122 if (htab->tls_sec == NULL)
69fc87f1 2123 return 0;
e1918d23 2124 return htab->tls_size + htab->tls_sec->vma - address;
69fc87f1
MS		 2125}
2126
2127/* Complain if TLS instruction relocation is against an invalid
2128 instruction. */
2129
2130static void
2c3fc389
NC		 2131invalid_tls_insn (bfd *input_bfd,
2132 asection *input_section,
2133 Elf_Internal_Rela *rel)
69fc87f1
MS		 2134{
2135 reloc_howto_type *howto;
2136
2137 howto = elf_howto_table + ELF32_R_TYPE (rel->r_info);
4eca0228 2138 _bfd_error_handler
695344c0 2139 /* xgettext:c-format */
2dcf00ce 2140 (_("%pB(%pA+%#" PRIx64 "): invalid instruction for TLS relocation %s"),
d003868e
AM		 2141 input_bfd,
2142 input_section,
2dcf00ce 2143 (uint64_t) rel->r_offset,
69fc87f1 2144 howto->name);
77df2968 2145 bfd_set_error (bfd_error_bad_value);
69fc87f1
MS		 2146}
2147
a85d7ed0
NC		 2148/* Relocate a 390 ELF section. */
2149
b34976b6 2150static bfd_boolean
2c3fc389
NC		 2151elf_s390_relocate_section (bfd *output_bfd,
2152 struct bfd_link_info *info,
2153 bfd *input_bfd,
2154 asection *input_section,
2155 bfd_byte *contents,
2156 Elf_Internal_Rela *relocs,
2157 Elf_Internal_Sym *local_syms,
2158 asection **local_sections)
a85d7ed0 2159{
0451c93c 2160 struct elf_s390_link_hash_table *htab;
a85d7ed0
NC		 2161 Elf_Internal_Shdr *symtab_hdr;
2162 struct elf_link_hash_entry **sym_hashes;
2163 bfd_vma *local_got_offsets;
a85d7ed0
NC		 2164 Elf_Internal_Rela *rel;
2165 Elf_Internal_Rela *relend;
2166
7af5d5c4
AM		 2167 if (!is_s390_elf (input_bfd))
2168 {
2169 bfd_set_error (bfd_error_wrong_format);
2170 return FALSE;
2171 }
0ffa91dd 2172
0451c93c 2173 htab = elf_s390_hash_table (info);
0ffa91dd 2174 symtab_hdr = &elf_symtab_hdr (input_bfd);
a85d7ed0
NC		 2175 sym_hashes = elf_sym_hashes (input_bfd);
2176 local_got_offsets = elf_local_got_offsets (input_bfd);
2177
a85d7ed0
NC		 2178 rel = relocs;
2179 relend = relocs + input_section->reloc_count;
2180 for (; rel < relend; rel++)
2181 {
5236c819 2182 unsigned int r_type;
a85d7ed0
NC		 2183 reloc_howto_type *howto;
2184 unsigned long r_symndx;
2185 struct elf_link_hash_entry *h;
2186 Elf_Internal_Sym *sym;
2187 asection *sec;
0451c93c 2188 bfd_vma off;
a85d7ed0 2189 bfd_vma relocation;
b34976b6 2190 bfd_boolean unresolved_reloc;
a85d7ed0 2191 bfd_reloc_status_type r;
69fc87f1 2192 int tls_type;
470b557a 2193 asection *base_got = htab->elf.sgot;
b27bb18f 2194 bfd_boolean resolved_to_zero;
ec338859 2195
a85d7ed0
NC		 2196 r_type = ELF32_R_TYPE (rel->r_info);
2197 if (r_type == (int) R_390_GNU_VTINHERIT
26e41594
AM		 2198 || r_type == (int) R_390_GNU_VTENTRY)
2199 continue;
5236c819 2200 if (r_type >= (int) R_390_max)
a85d7ed0
NC		 2201 {
2202 bfd_set_error (bfd_error_bad_value);
b34976b6 2203 return FALSE;
a85d7ed0 2204 }
ec338859 2205
b491616a 2206 howto = elf_howto_table + r_type;
a85d7ed0 2207 r_symndx = ELF32_R_SYM (rel->r_info);
5236c819 2208
a85d7ed0
NC		 2209 h = NULL;
2210 sym = NULL;
2211 sec = NULL;
b34976b6 2212 unresolved_reloc = FALSE;
a85d7ed0
NC		 2213 if (r_symndx < symtab_hdr->sh_info)
2214 {
2215 sym = local_syms + r_symndx;
2216 sec = local_sections[r_symndx];
470b557a
AK		 2217 if (ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC)
2218 {
2219 struct plt_entry *local_plt = elf_s390_local_plt (input_bfd);
2220 if (local_plt == NULL)
2221 return FALSE;
2222
2223 /* Address of the PLT slot. */
2224 relocation = (htab->elf.iplt->output_section->vma
2225 + htab->elf.iplt->output_offset
2226 + local_plt[r_symndx].plt.offset);
2227
2228 switch (r_type)
2229 {
31db78f6
AK		 2230 case R_390_PLTOFF16:
2231 case R_390_PLTOFF32:
2232 relocation -= htab->elf.sgot->output_section->vma;
2233 break;
470b557a
AK		 2234 case R_390_GOTPLT12:
2235 case R_390_GOTPLT16:
2236 case R_390_GOTPLT20:
2237 case R_390_GOTPLT32:
2238 case R_390_GOTPLTENT:
2239 case R_390_GOT12:
2240 case R_390_GOT16:
2241 case R_390_GOT20:
2242 case R_390_GOT32:
2243 case R_390_GOTENT:
2244 {
2245 /* Write the PLT slot address into the GOT slot. */
2246 bfd_put_32 (output_bfd, relocation,
2247 htab->elf.sgot->contents +
2248 local_got_offsets[r_symndx]);
2249 relocation = (local_got_offsets[r_symndx] +
2250 htab->elf.sgot->output_offset);
2251
2252 if (r_type == R_390_GOTENT || r_type == R_390_GOTPLTENT)
2253 relocation += htab->elf.sgot->output_section->vma;
2254 break;
2255 }
2256 default:
2257 break;
2258 }
2259 /* The output section is needed later in
2260 finish_dynamic_section when creating the dynamic
2261 relocation. */
2262 local_plt[r_symndx].sec = sec;
2263 goto do_relocation;
2264 }
2265 else
2266 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
a85d7ed0
NC		 2267 }
2268 else
2269 {
560e09e9 2270 bfd_boolean warned ATTRIBUTE_UNUSED;
62d887d4 2271 bfd_boolean ignored ATTRIBUTE_UNUSED;
ec338859 2272
b2a8e766
AM		 2273 RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
2274 r_symndx, symtab_hdr, sym_hashes,
2275 h, sec, relocation,
62d887d4 2276 unresolved_reloc, warned, ignored);
a85d7ed0 2277 }
ec338859 2278
dbaa2011 2279 if (sec != NULL && discarded_section (sec))
e4067dbb 2280 RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section,
545fd46b 2281 rel, 1, relend, howto, 0, contents);
ab96bf03 2282
0e1862bb 2283 if (bfd_link_relocatable (info))
ab96bf03
AM		 2284 continue;
2285
b27bb18f
L		 2286 resolved_to_zero = (h != NULL
2287 && UNDEFWEAK_NO_DYNAMIC_RELOC (info, h));
2288
a85d7ed0
NC		 2289 switch (r_type)
2290 {
5236c819
MS		 2291 case R_390_GOTPLT12:
2292 case R_390_GOTPLT16:
bd1ea41b 2293 case R_390_GOTPLT20:
5236c819
MS		 2294 case R_390_GOTPLT32:
2295 case R_390_GOTPLTENT:
2296 /* There are three cases for a GOTPLT relocation. 1) The
2297 relocation is against the jump slot entry of a plt that
2298 will get emitted to the output file. 2) The relocation
2299 is against the jump slot of a plt entry that has been
2300 removed. elf_s390_adjust_gotplt has created a GOT entry
2301 as replacement. 3) The relocation is against a local symbol.
2302 Cases 2) and 3) are the same as the GOT relocation code
2303 so we just have to test for case 1 and fall through for
2304 the other two. */
2305 if (h != NULL && h->plt.offset != (bfd_vma) -1)
2306 {
2307 bfd_vma plt_index;
2308
470b557a
AK		 2309 if (s390_is_ifunc_symbol_p (h))
2310 {
2311 plt_index = h->plt.offset / PLT_ENTRY_SIZE;
2312 relocation = (plt_index * GOT_ENTRY_SIZE +
2313 htab->elf.igotplt->output_offset);
2314 if (r_type == R_390_GOTPLTENT)
2315 relocation += htab->elf.igotplt->output_section->vma;
2316 }
2317 else
2318 {
2319 /* Calc. index no.
2320 Current offset - size first entry / entry size. */
2321 plt_index = (h->plt.offset - PLT_FIRST_ENTRY_SIZE) /
2322 PLT_ENTRY_SIZE;
2323
2324 /* Offset in GOT is PLT index plus GOT headers(3)
2325 times 4, addr & GOT addr. */
2326 relocation = (plt_index + 3) * GOT_ENTRY_SIZE;
2327 if (r_type == R_390_GOTPLTENT)
2328 relocation += htab->elf.sgot->output_section->vma;
2329 }
5236c819
MS		 2330 unresolved_reloc = FALSE;
2331
5236c819
MS		 2332 }
2333 /* Fall through. */
2334
26e41594
AM		 2335 case R_390_GOT12:
2336 case R_390_GOT16:
bd1ea41b 2337 case R_390_GOT20:
26e41594 2338 case R_390_GOT32:
befc3abb 2339 case R_390_GOTENT:
26e41594
AM		 2340 /* Relocation is to the entry for this symbol in the global
2341 offset table. */
470b557a 2342 if (base_got == NULL)
0451c93c 2343 abort ();
ec338859 2344
26e41594
AM		 2345 if (h != NULL)
2346 {
b34976b6 2347 bfd_boolean dyn;
ec338859 2348
26e41594 2349 off = h->got.offset;
0451c93c 2350 dyn = htab->elf.dynamic_sections_created;
470b557a
AK		 2351
2352 if (s390_is_ifunc_symbol_p (h))
2353 {
2354 BFD_ASSERT (h->plt.offset != (bfd_vma) -1);
2355 if (off == (bfd_vma)-1)
2356 {
2357 /* No explicit GOT usage so redirect to the
2358 got.iplt slot. */
2359 base_got = htab->elf.igotplt;
2360 off = h->plt.offset / PLT_ENTRY_SIZE * GOT_ENTRY_SIZE;
2361 }
2362 else
2363 {
2364 /* Explicit GOT slots must contain the address
2365 of the PLT slot. This will be handled in
2366 finish_dynamic_symbol. */
2367 }
2368 }
0e1862bb
L		 2369 else if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn,
2370 bfd_link_pic (info),
2371 h)
2372 || (bfd_link_pic (info)
470b557a
AK		 2373 && SYMBOL_REFERENCES_LOCAL (info, h))
2374 || (ELF_ST_VISIBILITY (h->other)
2375 && h->root.type == bfd_link_hash_undefweak))
2376
26e41594
AM		 2377 {
2378 /* This is actually a static link, or it is a
2379 -Bsymbolic link and the symbol is defined
2380 locally, or the symbol was forced to be local
2381 because of a version file. We must initialize
2382 this entry in the global offset table. Since the
2383 offset must always be a multiple of 2, we use the
2384 least significant bit to record whether we have
2385 initialized it already.
2386
2387 When doing a dynamic link, we create a .rel.got
2388 relocation entry to initialize the value. This
2389 is done in the finish_dynamic_symbol routine. */
2390 if ((off & 1) != 0)
2391 off &= ~1;
2392 else
2393 {
a85d7ed0 2394 bfd_put_32 (output_bfd, relocation,
470b557a 2395 base_got->contents + off);
26e41594
AM		 2396 h->got.offset |= 1;
2397 }
a63cc5f7
AK		 2398
2399 if ((h->def_regular
0e1862bb 2400 && bfd_link_pic (info)
a63cc5f7
AK		 2401 && SYMBOL_REFERENCES_LOCAL (info, h))
2402 /* lrl rx,sym@GOTENT -> larl rx, sym */
2403 && ((r_type == R_390_GOTENT
2404 && (bfd_get_16 (input_bfd,
2405 contents + rel->r_offset - 2)
2406 & 0xff0f) == 0xc40d)
2407 /* ly rx, sym@GOT(r12) -> larl rx, sym */
2408 || (r_type == R_390_GOT20
2409 && (bfd_get_32 (input_bfd,
2410 contents + rel->r_offset - 2)
2411 & 0xff00f000) == 0xe300c000
2412 && bfd_get_8 (input_bfd,
2413 contents + rel->r_offset + 3) == 0x58)))
2414 {
2415 unsigned short new_insn =
2416 (0xc000 | (bfd_get_8 (input_bfd,
2417 contents + rel->r_offset - 1) & 0xf0));
2418 bfd_put_16 (output_bfd, new_insn,
2419 contents + rel->r_offset - 2);
2420 r_type = R_390_PC32DBL;
2421 rel->r_addend = 2;
2422 howto = elf_howto_table + r_type;
2423 relocation = h->root.u.def.value
2424 + h->root.u.def.section->output_section->vma
2425 + h->root.u.def.section->output_offset;
2426 goto do_relocation;
2427 }
26e41594 2428 }
0451c93c 2429 else
b34976b6 2430 unresolved_reloc = FALSE;
26e41594
AM		 2431 }
2432 else
2433 {
0451c93c
MS		 2434 if (local_got_offsets == NULL)
2435 abort ();
a85d7ed0 2436
26e41594 2437 off = local_got_offsets[r_symndx];
a85d7ed0 2438
26e41594
AM		 2439 /* The offset must always be a multiple of 4. We use
2440 the least significant bit to record whether we have
2441 already generated the necessary reloc. */
2442 if ((off & 1) != 0)
2443 off &= ~1;
2444 else
2445 {
2446 bfd_put_32 (output_bfd, relocation,
f41345a7 2447 htab->elf.sgot->contents + off);
a85d7ed0 2448
0e1862bb 2449 if (bfd_link_pic (info))
26e41594
AM		 2450 {
2451 asection *srelgot;
2452 Elf_Internal_Rela outrel;
947216bf 2453 bfd_byte *loc;
a85d7ed0 2454
f41345a7 2455 srelgot = htab->elf.srelgot;
0451c93c
MS		 2456 if (srelgot == NULL)
2457 abort ();
a85d7ed0 2458
f41345a7
AK		 2459 outrel.r_offset = (htab->elf.sgot->output_section->vma
2460 + htab->elf.sgot->output_offset
26e41594
AM		 2461 + off);
2462 outrel.r_info = ELF32_R_INFO (0, R_390_RELATIVE);
a85d7ed0 2463 outrel.r_addend = relocation;
947216bf
AM		 2464 loc = srelgot->contents;
2465 loc += srelgot->reloc_count++ * sizeof (Elf32_External_Rela);
26e41594
AM		 2466 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
2467 }
a85d7ed0 2468
26e41594
AM		 2469 local_got_offsets[r_symndx] |= 1;
2470 }
2471 }
a85d7ed0 2472
0451c93c
MS		 2473 if (off >= (bfd_vma) -2)
2474 abort ();
a85d7ed0 2475
470b557a 2476 relocation = base_got->output_offset + off;
befc3abb 2477
ae9a127f
NC		 2478 /* For @GOTENT the relocation is against the offset between
2479 the instruction and the symbols entry in the GOT and not
2480 between the start of the GOT and the symbols entry. We
2481 add the vma of the GOT to get the correct value. */
5236c819
MS		 2482 if ( r_type == R_390_GOTENT
2483 || r_type == R_390_GOTPLTENT)
470b557a 2484 relocation += base_got->output_section->vma;
befc3abb 2485
26e41594 2486 break;
dc810e39 2487
5236c819 2488 case R_390_GOTOFF16:
26e41594
AM		 2489 case R_390_GOTOFF32:
2490 /* Relocation is relative to the start of the global offset
2491 table. */
2492
01a53584
AK		 2493 if (h != NULL
2494 && s390_is_ifunc_symbol_p (h)
2495 && h->def_regular
2496 && !bfd_link_executable (info))
2497 {
2498 relocation = (htab->elf.iplt->output_section->vma
2499 + htab->elf.iplt->output_offset
2500 + h->plt.offset
2501 - htab->elf.sgot->output_section->vma);
2502 goto do_relocation;
2503 }
2504
26e41594
AM		 2505 /* Note that sgot->output_offset is not involved in this
2506 calculation. We always want the start of .got. If we
2507 defined _GLOBAL_OFFSET_TABLE in a different way, as is
2508 permitted by the ABI, we might have to change this
2509 calculation. */
f41345a7 2510 relocation -= htab->elf.sgot->output_section->vma;
26e41594
AM		 2511 break;
2512
2513 case R_390_GOTPC:
befc3abb 2514 case R_390_GOTPCDBL:
26e41594 2515 /* Use global offset table as symbol value. */
f41345a7 2516 relocation = htab->elf.sgot->output_section->vma;
b34976b6 2517 unresolved_reloc = FALSE;
26e41594 2518 break;
a85d7ed0 2519
fb798c50 2520 case R_390_PLT12DBL:
26e41594 2521 case R_390_PLT16DBL:
fb798c50 2522 case R_390_PLT24DBL:
26e41594
AM		 2523 case R_390_PLT32DBL:
2524 case R_390_PLT32:
2525 /* Relocation is to the entry for this symbol in the
2526 procedure linkage table. */
a85d7ed0 2527
26e41594
AM		 2528 /* Resolve a PLT32 reloc against a local symbol directly,
2529 without using the procedure linkage table. */
2530 if (h == NULL)
2531 break;
a85d7ed0 2532
26e41594 2533 if (h->plt.offset == (bfd_vma) -1
470b557a 2534 || (htab->elf.splt == NULL && htab->elf.iplt == NULL))
26e41594
AM		 2535 {
2536 /* We didn't make a PLT entry for this symbol. This
2537 happens when statically linking PIC code, or when
2538 using -Bsymbolic. */
2539 break;
2540 }
2541
470b557a
AK		 2542 if (s390_is_ifunc_symbol_p (h))
2543 relocation = (htab->elf.iplt->output_section->vma
07d6d2b8 2544 + htab->elf.iplt->output_offset
470b557a
AK		 2545 + h->plt.offset);
2546 else
2547 relocation = (htab->elf.splt->output_section->vma
2548 + htab->elf.splt->output_offset
2549 + h->plt.offset);
b34976b6 2550 unresolved_reloc = FALSE;
26e41594 2551 break;
a85d7ed0 2552
5236c819
MS		 2553 case R_390_PLTOFF16:
2554 case R_390_PLTOFF32:
26e41594
AM		 2555 /* Relocation is to the entry for this symbol in the
2556 procedure linkage table relative to the start of the GOT. */
5236c819
MS		 2557
2558 /* For local symbols or if we didn't make a PLT entry for
2559 this symbol resolve the symbol directly. */
31db78f6 2560 if (h == NULL
5236c819 2561 || h->plt.offset == (bfd_vma) -1
31db78f6 2562 || (htab->elf.splt == NULL && !s390_is_ifunc_symbol_p (h)))
5236c819 2563 {
f41345a7 2564 relocation -= htab->elf.sgot->output_section->vma;
5236c819
MS		 2565 break;
2566 }
2567
470b557a
AK		 2568 if (s390_is_ifunc_symbol_p (h))
2569 relocation = (htab->elf.iplt->output_section->vma
2570 + htab->elf.iplt->output_offset
2571 + h->plt.offset
2572 - htab->elf.sgot->output_section->vma);
2573 else
2574 relocation = (htab->elf.splt->output_section->vma
2575 + htab->elf.splt->output_offset
2576 + h->plt.offset
2577 - htab->elf.sgot->output_section->vma);
5236c819 2578 unresolved_reloc = FALSE;
26e41594
AM		 2579 break;
2580
26e41594 2581 case R_390_PC16:
fb798c50 2582 case R_390_PC12DBL:
26e41594 2583 case R_390_PC16DBL:
fb798c50 2584 case R_390_PC24DBL:
26e41594
AM		 2585 case R_390_PC32DBL:
2586 case R_390_PC32:
99ba5125
AK		 2587 if (h != NULL
2588 && s390_is_ifunc_symbol_p (h)
2589 && h->def_regular
2590 && !bfd_link_executable (info))
2591 {
2592 /* This will not work our if the function does not
2593 happen to set up the GOT pointer for some other
2594 reason. 31 bit PLT entries require r12 to hold the
2595 GOT pointer.
2596 FIXME: Implement an errorcheck.
2597 NOTE: It will work when brasl is not available
2598 (e.g. with -m31 -march=g5) since a local function
2599 call then does use GOTOFF which implies r12 being set
2600 up. */
2601 relocation = (htab->elf.iplt->output_section->vma
2602 + htab->elf.iplt->output_offset
2603 + h ->plt.offset);
2604 goto do_relocation;
2605 }
1a0670f3 2606 /* Fall through. */
99ba5125
AK		 2607
2608 case R_390_8:
2609 case R_390_16:
2610 case R_390_32:
f657f8c4
NC		 2611 if ((input_section->flags & SEC_ALLOC) == 0)
2612 break;
2613
470b557a
AK		 2614 if (h != NULL
2615 && s390_is_ifunc_symbol_p (h)
2616 && h->def_regular)
2617 {
d7ab4911 2618 if (!bfd_link_pic (info))
470b557a
AK		 2619 {
2620 /* For a non-shared object STT_GNU_IFUNC symbol must
2621 go through PLT. */
2622 relocation = (htab->elf.iplt->output_section->vma
2623 + htab->elf.iplt->output_offset
2624 + h ->plt.offset);
2625 goto do_relocation;
2626 }
2627 else
2628 {
2629 /* For shared objects a runtime relocation is needed. */
2630
2631 Elf_Internal_Rela outrel;
2632 asection *sreloc;
2633
2634 /* Need a dynamic relocation to get the real function
2635 address. */
2636 outrel.r_offset = _bfd_elf_section_offset (output_bfd,
2637 info,
2638 input_section,
2639 rel->r_offset);
2640 if (outrel.r_offset == (bfd_vma) -1
2641 || outrel.r_offset == (bfd_vma) -2)
2642 abort ();
2643
2644 outrel.r_offset += (input_section->output_section->vma
2645 + input_section->output_offset);
2646
2647 if (h->dynindx == -1
2648 || h->forced_local
0e1862bb 2649 || bfd_link_executable (info))
470b557a
AK		 2650 {
2651 /* This symbol is resolved locally. */
2652 outrel.r_info = ELF32_R_INFO (0, R_390_IRELATIVE);
2653 outrel.r_addend = (h->root.u.def.value
2654 + h->root.u.def.section->output_section->vma
2655 + h->root.u.def.section->output_offset);
2656 }
2657 else
2658 {
2659 outrel.r_info = ELF32_R_INFO (h->dynindx, r_type);
2660 outrel.r_addend = 0;
2661 }
2662
2663 sreloc = htab->elf.irelifunc;
2664 elf_append_rela (output_bfd, sreloc, &outrel);
2665
2666 /* If this reloc is against an external symbol, we
2667 do not want to fiddle with the addend. Otherwise,
2668 we need to include the symbol value so that it
2669 becomes an addend for the dynamic reloc. For an
2670 internal symbol, we have updated addend. */
2671 continue;
2672 }
2673 }
2674
0e1862bb 2675 if ((bfd_link_pic (info)
82058a73 2676 && (h == NULL
b27bb18f
L		 2677 || (ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
2678 && !resolved_to_zero)
82058a73 2679 || h->root.type != bfd_link_hash_undefweak)
0451c93c 2680 && ((r_type != R_390_PC16
fb798c50 2681 && r_type != R_390_PC12DBL
0451c93c 2682 && r_type != R_390_PC16DBL
fb798c50 2683 && r_type != R_390_PC24DBL
befc3abb 2684 && r_type != R_390_PC32DBL
0451c93c 2685 && r_type != R_390_PC32)
8c21ca21 2686 || !SYMBOL_CALLS_LOCAL (info, h)))
64285810 2687 || (ELIMINATE_COPY_RELOCS
0e1862bb 2688 && !bfd_link_pic (info)
0451c93c
MS		 2689 && h != NULL
2690 && h->dynindx != -1
f5385ebf
AM		 2691 && !h->non_got_ref
2692 && ((h->def_dynamic
2693 && !h->def_regular)
0451c93c
MS		 2694 || h->root.type == bfd_link_hash_undefweak
2695 || h->root.type == bfd_link_hash_undefined)))
26e41594
AM		 2696 {
2697 Elf_Internal_Rela outrel;
2698 bfd_boolean skip, relocate;
0451c93c 2699 asection *sreloc;
947216bf 2700 bfd_byte *loc;
ec338859 2701
0451c93c
MS		 2702 /* When generating a shared object, these relocations
2703 are copied into the output file to be resolved at run
2704 time. */
ec338859 2705
26e41594
AM		 2706 skip = FALSE;
2707 relocate = FALSE;
ec338859 2708
c629eae0
JJ		 2709 outrel.r_offset =
2710 _bfd_elf_section_offset (output_bfd, info, input_section,
2711 rel->r_offset);
2712 if (outrel.r_offset == (bfd_vma) -1)
b34976b6 2713 skip = TRUE;
0bb2d96a 2714 else if (outrel.r_offset == (bfd_vma) -2)
b34976b6 2715 skip = TRUE, relocate = TRUE;
26e41594
AM		 2716 outrel.r_offset += (input_section->output_section->vma
2717 + input_section->output_offset);
ec338859 2718
26e41594 2719 if (skip)
0bb2d96a 2720 memset (&outrel, 0, sizeof outrel);
26e41594 2721 else if (h != NULL
0451c93c
MS		 2722 && h->dynindx != -1
2723 && (r_type == R_390_PC16
fb798c50 2724 || r_type == R_390_PC12DBL
0451c93c 2725 || r_type == R_390_PC16DBL
fb798c50 2726 || r_type == R_390_PC24DBL
befc3abb 2727 || r_type == R_390_PC32DBL
0451c93c 2728 || r_type == R_390_PC32
0e1862bb 2729 || !bfd_link_pic (info)
8c21ca21 2730 || !SYMBOLIC_BIND (info, h)
f5385ebf 2731 || !h->def_regular))
26e41594
AM		 2732 {
2733 outrel.r_info = ELF32_R_INFO (h->dynindx, r_type);
27018c3f 2734 outrel.r_addend = rel->r_addend;
26e41594
AM		 2735 }
2736 else
2737 {
0451c93c 2738 /* This symbol is local, or marked to become local. */
90ced0dd 2739 outrel.r_addend = relocation + rel->r_addend;
b5727d75
MS		 2740 if (r_type == R_390_32)
2741 {
2742 relocate = TRUE;
2743 outrel.r_info = ELF32_R_INFO (0, R_390_RELATIVE);
b5727d75
MS		 2744 }
2745 else
2746 {
2747 long sindx;
2748
90ced0dd 2749 if (bfd_is_abs_section (sec))
b5727d75
MS		 2750 sindx = 0;
2751 else if (sec == NULL || sec->owner == NULL)
2752 {
2753 bfd_set_error(bfd_error_bad_value);
2754 return FALSE;
2755 }
2756 else
2757 {
2758 asection *osec;
2759
2760 osec = sec->output_section;
2761 sindx = elf_section_data (osec)->dynindx;
74541ad4
AM		 2762 if (sindx == 0)
2763 {
2764 osec = htab->elf.text_index_section;
2765 sindx = elf_section_data (osec)->dynindx;
2766 }
2767 BFD_ASSERT (sindx != 0);
90ced0dd
MS		 2768
2769 /* We are turning this relocation into one
2770 against a section symbol, so subtract out
2771 the output section's address but not the
2772 offset of the input section in the output
2773 section. */
90ced0dd 2774 outrel.r_addend -= osec->vma;
b5727d75
MS		 2775 }
2776 outrel.r_info = ELF32_R_INFO (sindx, r_type);
b5727d75 2777 }
26e41594 2778 }
ec338859 2779
0451c93c
MS		 2780 sreloc = elf_section_data (input_section)->sreloc;
2781 if (sreloc == NULL)
2782 abort ();
ec338859 2783
947216bf
AM		 2784 loc = sreloc->contents;
2785 loc += sreloc->reloc_count++ * sizeof (Elf32_External_Rela);
0451c93c 2786 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
ec338859 2787
26e41594
AM		 2788 /* If this reloc is against an external symbol, we do
2789 not want to fiddle with the addend. Otherwise, we
2790 need to include the symbol value so that it becomes
2791 an addend for the dynamic reloc. */
2792 if (! relocate)
2793 continue;
2794 }
0451c93c 2795 break;
ec338859 2796
69fc87f1
MS		 2797 /* Relocations for tls literal pool entries. */
2798 case R_390_TLS_IE32:
0e1862bb 2799 if (bfd_link_pic (info))
69fc87f1
MS		 2800 {
2801 Elf_Internal_Rela outrel;
2802 asection *sreloc;
2803 bfd_byte *loc;
2804
2805 outrel.r_offset = rel->r_offset
2806 + input_section->output_section->vma
2807 + input_section->output_offset;
2808 outrel.r_info = ELF32_R_INFO (0, R_390_RELATIVE);
2809 sreloc = elf_section_data (input_section)->sreloc;
2810 if (sreloc == NULL)
2811 abort ();
2812 loc = sreloc->contents;
2813 loc += sreloc->reloc_count++ * sizeof (Elf32_External_Rela);
2814 bfd_elf32_swap_reloc_out (output_bfd, &outrel, loc);
2815 }
ae9a127f 2816 /* Fall through. */
69fc87f1
MS		 2817
2818 case R_390_TLS_GD32:
2819 case R_390_TLS_GOTIE32:
2820 r_type = elf_s390_tls_transition (info, r_type, h == NULL);
2821 tls_type = GOT_UNKNOWN;
2822 if (h == NULL && local_got_offsets)
2823 tls_type = elf_s390_local_got_tls_type (input_bfd) [r_symndx];
2824 else if (h != NULL)
2825 {
2826 tls_type = elf_s390_hash_entry(h)->tls_type;
0e1862bb
L		 2827 if (!bfd_link_pic (info)
2828 && h->dynindx == -1
2829 && tls_type >= GOT_TLS_IE)
69fc87f1
MS		 2830 r_type = R_390_TLS_LE32;
2831 }
2832 if (r_type == R_390_TLS_GD32 && tls_type >= GOT_TLS_IE)
2833 r_type = R_390_TLS_IE32;
2834
2835 if (r_type == R_390_TLS_LE32)
2836 {
2837 /* This relocation gets optimized away by the local exec
2838 access optimization. */
2839 BFD_ASSERT (! unresolved_reloc);
2840 bfd_put_32 (output_bfd, -tpoff (info, relocation),
2841 contents + rel->r_offset);
2842 continue;
2843 }
2844
f41345a7 2845 if (htab->elf.sgot == NULL)
69fc87f1
MS		 2846 abort ();
2847
2848 if (h != NULL)
2849 off = h->got.offset;
2850 else
2851 {
2852 if (local_got_offsets == NULL)
2853 abort ();
2854
2855 off = local_got_offsets[r_symndx];
2856 }
2857
2858 emit_tls_relocs:
2859
2860 if ((off & 1) != 0)
2861 off &= ~1;
26e41594 2862 else
69fc87f1
MS		 2863 {
2864 Elf_Internal_Rela outrel;
2865 bfd_byte *loc;
2866 int dr_type, indx;
2867
f41345a7 2868 if (htab->elf.srelgot == NULL)
69fc87f1
MS		 2869 abort ();
2870
f41345a7
AK		 2871 outrel.r_offset = (htab->elf.sgot->output_section->vma
2872 + htab->elf.sgot->output_offset + off);
69fc87f1
MS		 2873
2874 indx = h && h->dynindx != -1 ? h->dynindx : 0;
2875 if (r_type == R_390_TLS_GD32)
2876 dr_type = R_390_TLS_DTPMOD;
2877 else
2878 dr_type = R_390_TLS_TPOFF;
2879 if (dr_type == R_390_TLS_TPOFF && indx == 0)
2880 outrel.r_addend = relocation - dtpoff_base (info);
2881 else
2882 outrel.r_addend = 0;
2883 outrel.r_info = ELF32_R_INFO (indx, dr_type);
f41345a7
AK		 2884 loc = htab->elf.srelgot->contents;
2885 loc += htab->elf.srelgot->reloc_count++
69fc87f1
MS		 2886 * sizeof (Elf32_External_Rela);
2887 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
2888
2889 if (r_type == R_390_TLS_GD32)
2890 {
2891 if (indx == 0)
2892 {
26e41594 2893 BFD_ASSERT (! unresolved_reloc);
69fc87f1
MS		 2894 bfd_put_32 (output_bfd,
2895 relocation - dtpoff_base (info),
f41345a7 2896 htab->elf.sgot->contents + off + GOT_ENTRY_SIZE);
69fc87f1
MS		 2897 }
2898 else
2899 {
2900 outrel.r_info = ELF32_R_INFO (indx, R_390_TLS_DTPOFF);
2901 outrel.r_offset += GOT_ENTRY_SIZE;
2902 outrel.r_addend = 0;
f41345a7 2903 htab->elf.srelgot->reloc_count++;
69fc87f1
MS		 2904 loc += sizeof (Elf32_External_Rela);
2905 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
2906 }
2907 }
2908
2909 if (h != NULL)
2910 h->got.offset |= 1;
2911 else
2912 local_got_offsets[r_symndx] |= 1;
2913 }
2914
2915 if (off >= (bfd_vma) -2)
2916 abort ();
2917 if (r_type == ELF32_R_TYPE (rel->r_info))
2918 {
f41345a7 2919 relocation = htab->elf.sgot->output_offset + off;
69fc87f1 2920 if (r_type == R_390_TLS_IE32 || r_type == R_390_TLS_IEENT)
f41345a7 2921 relocation += htab->elf.sgot->output_section->vma;
69fc87f1
MS		 2922 unresolved_reloc = FALSE;
2923 }
2924 else
2925 {
f41345a7 2926 bfd_put_32 (output_bfd, htab->elf.sgot->output_offset + off,
69fc87f1
MS		 2927 contents + rel->r_offset);
2928 continue;
2929 }
2930 break;
2931
2932 case R_390_TLS_GOTIE12:
bd1ea41b 2933 case R_390_TLS_GOTIE20:
69fc87f1
MS		 2934 case R_390_TLS_IEENT:
2935 if (h == NULL)
2936 {
2937 if (local_got_offsets == NULL)
2938 abort();
2939 off = local_got_offsets[r_symndx];
0e1862bb 2940 if (bfd_link_pic (info))
69fc87f1
MS		 2941 goto emit_tls_relocs;
2942 }
2943 else
2944 {
2945 off = h->got.offset;
2946 tls_type = elf_s390_hash_entry(h)->tls_type;
0e1862bb
L		 2947 if (bfd_link_pic (info)
2948 || h->dynindx != -1
2949 || tls_type < GOT_TLS_IE)
69fc87f1
MS		 2950 goto emit_tls_relocs;
2951 }
2952
f41345a7 2953 if (htab->elf.sgot == NULL)
69fc87f1
MS		 2954 abort ();
2955
2956 BFD_ASSERT (! unresolved_reloc);
2957 bfd_put_32 (output_bfd, -tpoff (info, relocation),
f41345a7
AK		 2958 htab->elf.sgot->contents + off);
2959 relocation = htab->elf.sgot->output_offset + off;
69fc87f1 2960 if (r_type == R_390_TLS_IEENT)
f41345a7 2961 relocation += htab->elf.sgot->output_section->vma;
69fc87f1
MS		 2962 unresolved_reloc = FALSE;
2963 break;
2964
2965 case R_390_TLS_LDM32:
0e1862bb 2966 if (! bfd_link_pic (info))
69fc87f1
MS		 2967 /* The literal pool entry this relocation refers to gets ignored
2968 by the optimized code of the local exec model. Do nothing
2969 and the value will turn out zero. */
2970 continue;
2971
f41345a7 2972 if (htab->elf.sgot == NULL)
69fc87f1
MS		 2973 abort ();
2974
2975 off = htab->tls_ldm_got.offset;
2976 if (off & 1)
2977 off &= ~1;
2978 else
2979 {
2980 Elf_Internal_Rela outrel;
2981 bfd_byte *loc;
2982
f41345a7 2983 if (htab->elf.srelgot == NULL)
69fc87f1
MS		 2984 abort ();
2985
f41345a7
AK		 2986 outrel.r_offset = (htab->elf.sgot->output_section->vma
2987 + htab->elf.sgot->output_offset + off);
69fc87f1
MS		 2988
2989 bfd_put_32 (output_bfd, 0,
f41345a7 2990 htab->elf.sgot->contents + off + GOT_ENTRY_SIZE);
69fc87f1
MS		 2991 outrel.r_info = ELF32_R_INFO (0, R_390_TLS_DTPMOD);
2992 outrel.r_addend = 0;
f41345a7
AK		 2993 loc = htab->elf.srelgot->contents;
2994 loc += htab->elf.srelgot->reloc_count++
69fc87f1
MS		 2995 * sizeof (Elf32_External_Rela);
2996 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
2997 htab->tls_ldm_got.offset |= 1;
2998 }
f41345a7 2999 relocation = htab->elf.sgot->output_offset + off;
26e41594 3000 unresolved_reloc = FALSE;
69fc87f1
MS		 3001 break;
3002
3003 case R_390_TLS_LE32:
3cbc1e5e 3004 if (bfd_link_dll (info))
69fc87f1
MS		 3005 {
3006 /* Linking a shared library with non-fpic code requires
3007 a R_390_TLS_TPOFF relocation. */
3008 Elf_Internal_Rela outrel;
3009 asection *sreloc;
3010 bfd_byte *loc;
3011 int indx;
3012
3013 outrel.r_offset = rel->r_offset
3014 + input_section->output_section->vma
3015 + input_section->output_offset;
3016 if (h != NULL && h->dynindx != -1)
3017 indx = h->dynindx;
3018 else
3019 indx = 0;
3020 outrel.r_info = ELF32_R_INFO (indx, R_390_TLS_TPOFF);
3021 if (indx == 0)
3022 outrel.r_addend = relocation - dtpoff_base (info);
3023 else
3024 outrel.r_addend = 0;
3025 sreloc = elf_section_data (input_section)->sreloc;
3026 if (sreloc == NULL)
3027 abort ();
3028 loc = sreloc->contents;
3029 loc += sreloc->reloc_count++ * sizeof (Elf32_External_Rela);
3030 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
3031 }
3032 else
3033 {
3034 BFD_ASSERT (! unresolved_reloc);
3035 bfd_put_32 (output_bfd, -tpoff (info, relocation),
3036 contents + rel->r_offset);
3037 }
3038 continue;
3039
3040 case R_390_TLS_LDO32:
0e1862bb 3041 if (bfd_link_pic (info) || (input_section->flags & SEC_DEBUGGING))
69fc87f1
MS		 3042 relocation -= dtpoff_base (info);
3043 else
3044 /* When converting LDO to LE, we must negate. */
3045 relocation = -tpoff (info, relocation);
3046 break;
3047
3048 /* Relocations for tls instructions. */
3049 case R_390_TLS_LOAD:
3050 case R_390_TLS_GDCALL:
3051 case R_390_TLS_LDCALL:
3052 tls_type = GOT_UNKNOWN;
3053 if (h == NULL && local_got_offsets)
3054 tls_type = elf_s390_local_got_tls_type (input_bfd) [r_symndx];
3055 else if (h != NULL)
3056 tls_type = elf_s390_hash_entry(h)->tls_type;
3057
3058 if (tls_type == GOT_TLS_GD)
3059 continue;
3060
3061 if (r_type == R_390_TLS_LOAD)
3062 {
0e1862bb 3063 if (!bfd_link_pic (info) && (h == NULL || h->dynindx == -1))
69fc87f1
MS		 3064 {
3065 /* IE->LE transition. Four valid cases:
3066 l %rx,0(0,%ry) -> lr %rx,%ry + bcr 0,0
3067 l %rx,0(%ry,0) -> lr %rx,%ry + bcr 0,0
3068 l %rx,0(%ry,%r12) -> lr %rx,%ry + bcr 0,0
3069 l %rx,0(%r12,%ry) -> lr %rx,%ry + bcr 0,0 */
3070 unsigned int insn, ry;
3071
3072 insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
69fc87f1
MS		 3073 if ((insn & 0xff00f000) == 0x58000000)
3074 /* l %rx,0(%ry,0) -> lr %rx,%ry + bcr 0,0 */
3075 ry = (insn & 0x000f0000);
3076 else if ((insn & 0xff0f0000) == 0x58000000)
3077 /* l %rx,0(0,%ry) -> lr %rx,%ry + bcr 0,0 */
3078 ry = (insn & 0x0000f000) << 4;
3079 else if ((insn & 0xff00f000) == 0x5800c000)
3080 /* l %rx,0(%ry,%r12) -> lr %rx,%ry + bcr 0,0 */
3081 ry = (insn & 0x000f0000);
3082 else if ((insn & 0xff0f0000) == 0x580c0000)
3083 /* l %rx,0(%r12,%ry) -> lr %rx,%ry + bcr 0,0 */
3084 ry = (insn & 0x0000f000) << 4;
3085 else
3704e358
AK		 3086 {
3087 invalid_tls_insn (input_bfd, input_section, rel);
3088 return FALSE;
3089 }
69fc87f1
MS		 3090 insn = 0x18000700 | (insn & 0x00f00000) | ry;
3091 bfd_put_32 (output_bfd, insn, contents + rel->r_offset);
3092 }
3093 }
3094 else if (r_type == R_390_TLS_GDCALL)
3095 {
3096 unsigned int insn;
3097
3098 insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
77df2968 3099 if ((insn & 0xff000fff) != 0x4d000000 &&
d0ddfe27
AK		 3100 (insn & 0xffff0000) != 0xc0e50000 &&
3101 (insn & 0xff000000) != 0x0d000000)
3704e358
AK		 3102 {
3103 invalid_tls_insn (input_bfd, input_section, rel);
3104 return FALSE;
3105 }
0e1862bb 3106 if (!bfd_link_pic (info) && (h == NULL || h->dynindx == -1))
77df2968 3107 {
d0ddfe27
AK		 3108 if ((insn & 0xff000000) == 0x0d000000)
3109 {
3110 /* GD->LE transition.
3111 basr rx, ry -> nopr r7 */
3112 insn = 0x07070000 | (insn & 0xffff);
3113 }
3114 else if ((insn & 0xff000000) == 0x4d000000)
77df2968
MS		 3115 {
3116 /* GD->LE transition.
3117 bas %r14,0(%rx,%r13) -> bc 0,0 */
3118 insn = 0x47000000;
3119 }
3120 else
3121 {
3122 /* GD->LE transition.
d0ddfe27 3123 brasl %r14,_tls_get_offset@plt -> brcl 0,. */
77df2968
MS		 3124 insn = 0xc0040000;
3125 bfd_put_16 (output_bfd, 0x0000,
3126 contents + rel->r_offset + 4);
3127 }
3128 }
69fc87f1 3129 else
77df2968 3130 {
d0ddfe27
AK		 3131 /* If basr is used in the pic case to invoke
3132 _tls_get_offset, something went wrong before. */
3133 if ((insn & 0xff000000) == 0x0d000000)
3704e358
AK		 3134 {
3135 invalid_tls_insn (input_bfd, input_section, rel);
3136 return FALSE;
3137 }
d0ddfe27 3138
77df2968
MS		 3139 if ((insn & 0xff000000) == 0x4d000000)
3140 {
3141 /* GD->IE transition.
3142 bas %r14,0(%rx,%r13) -> l %r2,0(%r2,%r12) */
3143 insn = 0x5822c000;
3144 }
3145 else
3146 {
3147 /* GD->IE transition.
3148 brasl %r14,__tls_get_addr@plt ->
07d6d2b8 3149 l %r2,0(%r2,%r12) ; bcr 0,0 */
77df2968
MS		 3150 insn = 0x5822c000;
3151 bfd_put_16 (output_bfd, 0x0700,
3152 contents + rel->r_offset + 4);
3153 }
3154 }
69fc87f1
MS		 3155 bfd_put_32 (output_bfd, insn, contents + rel->r_offset);
3156 }
3157 else if (r_type == R_390_TLS_LDCALL)
3158 {
0e1862bb 3159 if (!bfd_link_pic (info))
69fc87f1
MS		 3160 {
3161 unsigned int insn;
3162
3163 insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
77df2968 3164 if ((insn & 0xff000fff) != 0x4d000000 &&
d0ddfe27
AK		 3165 (insn & 0xffff0000) != 0xc0e50000 &&
3166 (insn & 0xff000000) != 0x0d000000)
3704e358
AK		 3167 {
3168 invalid_tls_insn (input_bfd, input_section, rel);
3169 return FALSE;
3170 }
d0ddfe27
AK		 3171
3172 if ((insn & 0xff000000) == 0x0d000000)
3173 {
3174 /* LD->LE transition.
3175 basr rx, ry -> nopr r7 */
3176 insn = 0x07070000 | (insn & 0xffff);
3177 }
3178 else if ((insn & 0xff000000) == 0x4d000000)
77df2968
MS		 3179 {
3180 /* LD->LE transition.
3181 bas %r14,0(%rx,%r13) -> bc 0,0 */
3182 insn = 0x47000000;
3183 }
3184 else
3185 {
3186 /* LD->LE transition.
d0ddfe27 3187 brasl %r14,__tls_get_offset@plt -> brcl 0,. */
77df2968
MS		 3188 insn = 0xc0040000;
3189 bfd_put_16 (output_bfd, 0x0000,
3190 contents + rel->r_offset + 4);
3191 }
69fc87f1
MS		 3192 bfd_put_32 (output_bfd, insn, contents + rel->r_offset);
3193 }
3194 }
3195 continue;
3196
0451c93c
MS		 3197 default:
3198 break;
3199 }
ec338859 3200
239e1f3a
AM		 3201 /* Dynamic relocs are not propagated for SEC_DEBUGGING sections
3202 because such sections are not SEC_ALLOC and thus ld.so will
3203 not process them. */
0451c93c 3204 if (unresolved_reloc
239e1f3a 3205 && !((input_section->flags & SEC_DEBUGGING) != 0
1d5316ab
AM		 3206 && h->def_dynamic)
3207 && _bfd_elf_section_offset (output_bfd, info, input_section,
3208 rel->r_offset) != (bfd_vma) -1)
4eca0228 3209 _bfd_error_handler
695344c0 3210 /* xgettext:c-format */
2dcf00ce
AM		 3211 (_("%pB(%pA+%#" PRIx64 "): "
3212 "unresolvable %s relocation against symbol `%s'"),
d003868e
AM		 3213 input_bfd,
3214 input_section,
2dcf00ce 3215 (uint64_t) rel->r_offset,
843fe662 3216 howto->name,
0451c93c 3217 h->root.root.string);
ec338859 3218
470b557a
AK		 3219 do_relocation:
3220
fb798c50
AK		 3221 /* When applying a 24 bit reloc we need to start one byte
3222 earlier. Otherwise the 32 bit get/put bfd operations might
3223 access a byte after the actual section. */
3224 if (r_type == R_390_PC24DBL
3225 || r_type == R_390_PLT24DBL)
3226 rel->r_offset--;
3227
bd1ea41b
MS		 3228 if (r_type == R_390_20
3229 || r_type == R_390_GOT20
3230 || r_type == R_390_GOTPLT20
3231 || r_type == R_390_TLS_GOTIE20)
3232 {
3233 relocation += rel->r_addend;
3234 relocation = (relocation&0xfff) << 8 | (relocation&0xff000) >> 12;
3235 r = _bfd_final_link_relocate (howto, input_bfd, input_section,
3236 contents, rel->r_offset,
3237 relocation, 0);
3238 }
3239 else
3240 r = _bfd_final_link_relocate (howto, input_bfd, input_section,
3241 contents, rel->r_offset,
3242 relocation, rel->r_addend);
ec338859 3243
a85d7ed0
NC		 3244 if (r != bfd_reloc_ok)
3245 {
0451c93c 3246 const char *name;
ec338859 3247
0451c93c
MS		 3248 if (h != NULL)
3249 name = h->root.root.string;
3250 else
a85d7ed0 3251 {
0451c93c
MS		 3252 name = bfd_elf_string_from_elf_section (input_bfd,
3253 symtab_hdr->sh_link,
3254 sym->st_name);
3255 if (name == NULL)
b34976b6 3256 return FALSE;
0451c93c
MS		 3257 if (*name == '\0')
3258 name = bfd_section_name (input_bfd, sec);
3259 }
ec338859 3260
0451c93c 3261 if (r == bfd_reloc_overflow)
1a72702b
AM		 3262 (*info->callbacks->reloc_overflow)
3263 (info, (h ? &h->root : NULL), name, howto->name,
3264 (bfd_vma) 0, input_bfd, input_section, rel->r_offset);
0451c93c
MS		 3265 else
3266 {
4eca0228 3267 _bfd_error_handler
695344c0 3268 /* xgettext:c-format */
2dcf00ce 3269 (_("%pB(%pA+%#" PRIx64 "): reloc against `%s': error %d"),
d003868e 3270 input_bfd, input_section,
2dcf00ce 3271 (uint64_t) rel->r_offset, name, (int) r);
b34976b6 3272 return FALSE;
a85d7ed0
NC		 3273 }
3274 }
3275 }
ec338859 3276
b34976b6 3277 return TRUE;
a85d7ed0
NC		 3278}
3279
470b557a
AK		 3280/* Generate the PLT slots together with the dynamic relocations needed
3281 for IFUNC symbols. */
3282
3283static void
3284elf_s390_finish_ifunc_symbol (bfd *output_bfd,
3285 struct bfd_link_info *info,
3286 struct elf_link_hash_entry *h,
3287 struct elf_s390_link_hash_table *htab,
3288 bfd_vma iplt_offset,
3289 bfd_vma resolver_address)
3290{
3291 bfd_vma iplt_index;
3292 bfd_vma got_offset;
3293 bfd_vma igotiplt_offset;
3294 Elf_Internal_Rela rela;
3295 bfd_byte *loc;
3296 asection *plt, *gotplt, *relplt;
3297 bfd_vma relative_offset;
3298
3299 if (htab->elf.iplt == NULL
3300 || htab->elf.igotplt == NULL
3301 || htab->elf.irelplt == NULL)
3302 abort ();
3303
3304 gotplt = htab->elf.igotplt;
3305 relplt = htab->elf.irelplt;
3306
3307 /* Index of the PLT slot within iplt section. */
3308 iplt_index = iplt_offset / PLT_ENTRY_SIZE;
3309 plt = htab->elf.iplt;
3310 /* Offset into the igot.plt section. */
3311 igotiplt_offset = iplt_index * GOT_ENTRY_SIZE;
3312 /* Offset into the got section. */
3313 got_offset = igotiplt_offset + gotplt->output_offset;
3314
3315 /* S390 uses halfwords for relative branch calc! */
3316 relative_offset = - (plt->output_offset +
3317 (PLT_ENTRY_SIZE * iplt_index) + 18) / 2;
ceada896
AA		 3318 /* If offset is > 32768, branch to a previous branch
3319 390 can only handle +-64 K jumps. */
470b557a
AK		 3320 if ( -32768 > (int) relative_offset )
3321 relative_offset
3322 = -(unsigned) (((65536 / PLT_ENTRY_SIZE - 1) * PLT_ENTRY_SIZE) / 2);
3323
3324 /* Fill in the entry in the procedure linkage table. */
0e1862bb 3325 if (!bfd_link_pic (info))
470b557a
AK		 3326 {
3327 memcpy (plt->contents + iplt_offset, elf_s390_plt_entry,
3328 PLT_ENTRY_SIZE);
3329
3330 /* Adjust jump to the first plt entry. */
3331 bfd_put_32 (output_bfd, (bfd_vma) 0+(relative_offset << 16),
3332 plt->contents + iplt_offset + 20);
3333
3334 /* Push the GOT offset field. */
3335 bfd_put_32 (output_bfd,
3336 (gotplt->output_section->vma
3337 + got_offset),
3338 plt->contents + iplt_offset + 24);
3339 }
3340 else if (got_offset < 4096)
3341 {
3342 /* The GOT offset is small enough to be used directly as
3343 displacement. */
3344 memcpy (plt->contents + iplt_offset,
3345 elf_s390_plt_pic12_entry,
3346 PLT_ENTRY_SIZE);
3347
3348 /* Put in the GOT offset as displacement value. The 0xc000
3349 value comes from the first word of the plt entry. Look
3350 at the elf_s390_plt_pic16_entry content. */
3351 bfd_put_16 (output_bfd, (bfd_vma)0xc000 | got_offset,
3352 plt->contents + iplt_offset + 2);
3353
3354 /* Adjust the jump to the first plt entry. */
3355 bfd_put_32 (output_bfd, (bfd_vma) 0+(relative_offset << 16),
3356 plt->contents + iplt_offset + 20);
3357 }
3358 else if (got_offset < 32768)
3359 {
3360 /* The GOT offset is too big for a displacement but small
3361 enough to be a signed 16 bit immediate value as it can be
3362 used in an lhi instruction. */
3363 memcpy (plt->contents + iplt_offset,
3364 elf_s390_plt_pic16_entry,
3365 PLT_ENTRY_SIZE);
3366
3367 /* Put in the GOT offset for the lhi instruction. */
3368 bfd_put_16 (output_bfd, (bfd_vma)got_offset,
3369 plt->contents + iplt_offset + 2);
3370
3371 /* Adjust the jump to the first plt entry. */
3372 bfd_put_32 (output_bfd, (bfd_vma) 0+(relative_offset << 16),
3373 plt->contents + iplt_offset + 20);
3374 }
3375 else
3376 {
3377 memcpy (plt->contents + iplt_offset,
3378 elf_s390_plt_pic_entry,
3379 PLT_ENTRY_SIZE);
3380
3381 /* Adjust the jump to the first plt entry. */
3382 bfd_put_32 (output_bfd, (bfd_vma) 0+(relative_offset << 16),
3383 plt->contents + iplt_offset + 20);
3384
3385 /* Push the GOT offset field. */
3386 bfd_put_32 (output_bfd, got_offset,
3387 plt->contents + iplt_offset + 24);
3388 }
3389 /* Insert offset into reloc. table here. */
3390 bfd_put_32 (output_bfd, relplt->output_offset +
3391 iplt_index * RELA_ENTRY_SIZE,
3392 plt->contents + iplt_offset + 28);
3393
3394 /* Fill in the entry in the global offset table.
3395 Points to instruction after GOT offset. */
3396 bfd_put_32 (output_bfd,
3397 (plt->output_section->vma
3398 + plt->output_offset
3399 + iplt_offset
3400 + 12),
3401 gotplt->contents + igotiplt_offset);
3402
3403 /* Fill in the entry in the .rela.plt section. */
3404 rela.r_offset = gotplt->output_section->vma + got_offset;
3405
3406 if (!h
3407 || h->dynindx == -1
0e1862bb 3408 || ((bfd_link_executable (info)
470b557a
AK		 3409 || ELF_ST_VISIBILITY (h->other) != STV_DEFAULT)
3410 && h->def_regular))
3411 {
3412 /* The symbol can be locally resolved. */
3413 rela.r_info = ELF32_R_INFO (0, R_390_IRELATIVE);
3414 rela.r_addend = resolver_address;
3415 }
3416 else
3417 {
3418 rela.r_info = ELF32_R_INFO (h->dynindx, R_390_JMP_SLOT);
3419 rela.r_addend = 0;
3420 }
3421
3422 loc = relplt->contents + iplt_index * RELA_ENTRY_SIZE;
3423 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
3424}
3425
a85d7ed0
NC		 3426/* Finish up dynamic symbol handling. We set the contents of various
3427 dynamic sections here. */
3428
b34976b6 3429static bfd_boolean
2c3fc389
NC		 3430elf_s390_finish_dynamic_symbol (bfd *output_bfd,
3431 struct bfd_link_info *info,
3432 struct elf_link_hash_entry *h,
3433 Elf_Internal_Sym *sym)
a85d7ed0 3434{
0451c93c 3435 struct elf_s390_link_hash_table *htab;
470b557a 3436 struct elf_s390_link_hash_entry *eh = (struct elf_s390_link_hash_entry*)h;
ec338859 3437
0451c93c 3438 htab = elf_s390_hash_table (info);
ec338859 3439
a85d7ed0
NC		 3440 if (h->plt.offset != (bfd_vma) -1)
3441 {
0451c93c
MS		 3442 bfd_vma plt_index;
3443 bfd_vma got_offset;
a85d7ed0 3444 Elf_Internal_Rela rela;
947216bf 3445 bfd_byte *loc;
a85d7ed0 3446 bfd_vma relative_offset;
ec338859 3447
a85d7ed0 3448 /* This symbol has an entry in the procedure linkage table. Set
26e41594 3449 it up. */
0a511368 3450 if (s390_is_ifunc_symbol_p (h) && h->def_regular)
0451c93c 3451 {
0a511368
AK		 3452 elf_s390_finish_ifunc_symbol (output_bfd, info, h,
3453 htab, h->plt.offset,
3454 eh->ifunc_resolver_address +
3455 eh->ifunc_resolver_section->output_offset +
3456 eh->ifunc_resolver_section->output_section->vma);
3457 /* Do not return yet. Handling of explicit GOT slots of
3458 IFUNC symbols is below. */
0451c93c 3459 }
a85d7ed0 3460 else
0451c93c 3461 {
470b557a
AK		 3462 if (h->dynindx == -1
3463 || htab->elf.splt == NULL
3464 || htab->elf.sgotplt == NULL
3465 || htab->elf.srelplt == NULL)
3466 abort ();
9aa17453 3467
470b557a
AK		 3468 /* Calc. index no.
3469 Current offset - size first entry / entry size. */
3470 plt_index = (h->plt.offset - PLT_FIRST_ENTRY_SIZE) / PLT_ENTRY_SIZE;
9aa17453 3471
470b557a
AK		 3472 /* Offset in GOT is PLT index plus GOT headers(3) times 4,
3473 addr & GOT addr. */
3474 got_offset = (plt_index + 3) * GOT_ENTRY_SIZE;
a85d7ed0 3475
470b557a
AK		 3476 /* S390 uses halfwords for relative branch calc! */
3477 relative_offset = - ((PLT_FIRST_ENTRY_SIZE +
3478 (PLT_ENTRY_SIZE * plt_index) + 18) / 2);
3479 /* If offset is > 32768, branch to a previous branch
3480 390 can only handle +-64 K jumps. */
3481 if ( -32768 > (int) relative_offset )
3482 relative_offset
3483 = -(unsigned) (((65536 / PLT_ENTRY_SIZE - 1) * PLT_ENTRY_SIZE) / 2);
ec338859 3484
470b557a 3485 /* Fill in the entry in the procedure linkage table. */
0e1862bb 3486 if (!bfd_link_pic (info))
470b557a
AK		 3487 {
3488 memcpy (htab->elf.splt->contents + h->plt.offset, elf_s390_plt_entry,
3489 PLT_ENTRY_SIZE);
3490
3491 /* Adjust jump to the first plt entry. */
3492 bfd_put_32 (output_bfd, (bfd_vma) 0+(relative_offset << 16),
3493 htab->elf.splt->contents + h->plt.offset + 20);
3494
3495 /* Push the GOT offset field. */
3496 bfd_put_32 (output_bfd,
3497 (htab->elf.sgotplt->output_section->vma
3498 + htab->elf.sgotplt->output_offset
3499 + got_offset),
3500 htab->elf.splt->contents + h->plt.offset + 24);
3501 }
3502 else if (got_offset < 4096)
3503 {
3504 /* The GOT offset is small enough to be used directly as
3505 displacement. */
3506 memcpy (htab->elf.splt->contents + h->plt.offset,
3507 elf_s390_plt_pic12_entry,
3508 PLT_ENTRY_SIZE);
3509
3510 /* Put in the GOT offset as displacement value. The 0xc000
3511 value comes from the first word of the plt entry. Look
3b67f094 3512 at the elf_s390_plt_pic12_entry content. */
470b557a
AK		 3513 bfd_put_16 (output_bfd, (bfd_vma)0xc000 | got_offset,
3514 htab->elf.splt->contents + h->plt.offset + 2);
3515
3516 /* Adjust the jump to the first plt entry. */
3517 bfd_put_32 (output_bfd, (bfd_vma) 0+(relative_offset << 16),
3518 htab->elf.splt->contents + h->plt.offset + 20);
3519 }
3520 else if (got_offset < 32768)
3521 {
3522 /* The GOT offset is too big for a displacement but small
3523 enough to be a signed 16 bit immediate value as it can be
3524 used in an lhi instruction. */
3525 memcpy (htab->elf.splt->contents + h->plt.offset,
3526 elf_s390_plt_pic16_entry,
3527 PLT_ENTRY_SIZE);
3528
3529 /* Put in the GOT offset for the lhi instruction. */
3530 bfd_put_16 (output_bfd, (bfd_vma)got_offset,
3531 htab->elf.splt->contents + h->plt.offset + 2);
3532
3533 /* Adjust the jump to the first plt entry. */
3534 bfd_put_32 (output_bfd, (bfd_vma) 0+(relative_offset << 16),
3535 htab->elf.splt->contents + h->plt.offset + 20);
3536 }
3537 else
3538 {
3539 memcpy (htab->elf.splt->contents + h->plt.offset,
3540 elf_s390_plt_pic_entry,
3541 PLT_ENTRY_SIZE);
3542
3543 /* Adjust the jump to the first plt entry. */
3544 bfd_put_32 (output_bfd, (bfd_vma) 0+(relative_offset << 16),
3545 htab->elf.splt->contents + h->plt.offset + 20);
3546
3547 /* Push the GOT offset field. */
3548 bfd_put_32 (output_bfd, got_offset,
3549 htab->elf.splt->contents + h->plt.offset + 24);
3550 }
3551 /* Insert offset into reloc. table here. */
3552 bfd_put_32 (output_bfd, plt_index * sizeof (Elf32_External_Rela),
3553 htab->elf.splt->contents + h->plt.offset + 28);
3554
3555 /* Fill in the entry in the global offset table.
3556 Points to instruction after GOT offset. */
3557 bfd_put_32 (output_bfd,
3558 (htab->elf.splt->output_section->vma
3559 + htab->elf.splt->output_offset
3560 + h->plt.offset
3561 + 12),
3562 htab->elf.sgotplt->contents + got_offset);
3563
3564 /* Fill in the entry in the .rela.plt section. */
3565 rela.r_offset = (htab->elf.sgotplt->output_section->vma
3566 + htab->elf.sgotplt->output_offset
3567 + got_offset);
3568 rela.r_info = ELF32_R_INFO (h->dynindx, R_390_JMP_SLOT);
3569 rela.r_addend = 0;
3570 loc = htab->elf.srelplt->contents + plt_index * sizeof (Elf32_External_Rela);
3571 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
3572
3573 if (!h->def_regular)
3574 {
3575 /* Mark the symbol as undefined, rather than as defined in
3576 the .plt section. Leave the value alone. This is a clue
3577 for the dynamic linker, to make function pointer
3578 comparisons work between an application and shared
3579 library. */
3580 sym->st_shndx = SHN_UNDEF;
3581 }
a85d7ed0
NC		 3582 }
3583 }
ec338859 3584
69fc87f1
MS		 3585 if (h->got.offset != (bfd_vma) -1
3586 && elf_s390_hash_entry(h)->tls_type != GOT_TLS_GD
3587 && elf_s390_hash_entry(h)->tls_type != GOT_TLS_IE
3588 && elf_s390_hash_entry(h)->tls_type != GOT_TLS_IE_NLT)
a85d7ed0 3589 {
a85d7ed0 3590 Elf_Internal_Rela rela;
947216bf 3591 bfd_byte *loc;
a85d7ed0
NC		 3592
3593 /* This symbol has an entry in the global offset table. Set it
26e41594 3594 up. */
a85d7ed0 3595
f41345a7 3596 if (htab->elf.sgot == NULL || htab->elf.srelgot == NULL)
0451c93c 3597 abort ();
a85d7ed0 3598
f41345a7
AK		 3599 rela.r_offset = (htab->elf.sgot->output_section->vma
3600 + htab->elf.sgot->output_offset
dc810e39 3601 + (h->got.offset &~ (bfd_vma) 1));
a85d7ed0
NC		 3602
3603 /* If this is a static link, or it is a -Bsymbolic link and the
3604 symbol is defined locally or was forced to be local because
3605 of a version file, we just want to emit a RELATIVE reloc.
3606 The entry in the global offset table will already have been
3607 initialized in the relocate_section function. */
470b557a
AK		 3608 if (h->def_regular && s390_is_ifunc_symbol_p (h))
3609 {
0e1862bb 3610 if (bfd_link_pic (info))
470b557a
AK		 3611 {
3612 /* An explicit GOT slot usage needs GLOB_DAT. If the
3613 symbol references local the implicit got.iplt slot
3614 will be used and the IRELATIVE reloc has been created
3615 above. */
3616 goto do_glob_dat;
3617 }
3618 else
3619 {
3620 /* For non-shared objects explicit GOT slots must be
3621 filled with the PLT slot address for pointer
3622 equality reasons. */
3623 bfd_put_32 (output_bfd, (htab->elf.iplt->output_section->vma
3624 + htab->elf.iplt->output_offset
3625 + h->plt.offset),
3626 htab->elf.sgot->contents + h->got.offset);
3627 return TRUE;
3628 }
3629 }
0e1862bb 3630 else if (bfd_link_pic (info)
ceada896 3631 && SYMBOL_REFERENCES_LOCAL (info, h))
0451c93c 3632 {
470b557a
AK		 3633 /* If this is a static link, or it is a -Bsymbolic link and
3634 the symbol is defined locally or was forced to be local
3635 because of a version file, we just want to emit a
3636 RELATIVE reloc. The entry in the global offset table
3637 will already have been initialized in the
3638 relocate_section function. */
8170f769 3639 if (!(h->def_regular || ELF_COMMON_DEF_P (h)))
8c21ca21 3640 return FALSE;
0451c93c
MS		 3641 BFD_ASSERT((h->got.offset & 1) != 0);
3642 rela.r_info = ELF32_R_INFO (0, R_390_RELATIVE);
3643 rela.r_addend = (h->root.u.def.value
26e41594
AM		 3644 + h->root.u.def.section->output_section->vma
3645 + h->root.u.def.section->output_offset);
3646 }
a85d7ed0
NC		 3647 else
3648 {
3649 BFD_ASSERT((h->got.offset & 1) == 0);
470b557a 3650 do_glob_dat:
f41345a7 3651 bfd_put_32 (output_bfd, (bfd_vma) 0, htab->elf.sgot->contents + h->got.offset);
a85d7ed0 3652 rela.r_info = ELF32_R_INFO (h->dynindx, R_390_GLOB_DAT);
26e41594
AM		 3653 rela.r_addend = 0;
3654 }
a85d7ed0 3655
f41345a7
AK		 3656 loc = htab->elf.srelgot->contents;
3657 loc += htab->elf.srelgot->reloc_count++ * sizeof (Elf32_External_Rela);
0451c93c 3658 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
a85d7ed0
NC		 3659 }
3660
f5385ebf 3661 if (h->needs_copy)
a85d7ed0 3662 {
a85d7ed0 3663 Elf_Internal_Rela rela;
5474d94f 3664 asection *s;
947216bf 3665 bfd_byte *loc;
a85d7ed0
NC		 3666
3667 /* This symbols needs a copy reloc. Set it up. */
3668
0451c93c
MS		 3669 if (h->dynindx == -1
3670 || (h->root.type != bfd_link_hash_defined
3671 && h->root.type != bfd_link_hash_defweak)
5474d94f
AM		 3672 || htab->elf.srelbss == NULL
3673 || htab->elf.sreldynrelro == NULL)
0451c93c 3674 abort ();
a85d7ed0
NC		 3675
3676 rela.r_offset = (h->root.u.def.value
3677 + h->root.u.def.section->output_section->vma
3678 + h->root.u.def.section->output_offset);
3679 rela.r_info = ELF32_R_INFO (h->dynindx, R_390_COPY);
3680 rela.r_addend = 0;
afbf7e8e 3681 if (h->root.u.def.section == htab->elf.sdynrelro)
5474d94f
AM		 3682 s = htab->elf.sreldynrelro;
3683 else
3684 s = htab->elf.srelbss;
3685 loc = s->contents + s->reloc_count++ * sizeof (Elf32_External_Rela);
0451c93c 3686 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
a85d7ed0
NC		 3687 }
3688
3689 /* Mark some specially defined symbols as absolute. */
9637f6ef 3690 if (h == htab->elf.hdynamic
22edb2f1
RS		 3691 || h == htab->elf.hgot
3692 || h == htab->elf.hplt)
a85d7ed0
NC		 3693 sym->st_shndx = SHN_ABS;
3694
b34976b6 3695 return TRUE;
a85d7ed0
NC		 3696}
3697
0451c93c
MS		 3698/* Used to decide how to sort relocs in an optimal manner for the
3699 dynamic linker, before writing them out. */
3700
3701static enum elf_reloc_type_class
7e612e98
AM		 3702elf_s390_reloc_type_class (const struct bfd_link_info *info ATTRIBUTE_UNUSED,
3703 const asection *rel_sec ATTRIBUTE_UNUSED,
3704 const Elf_Internal_Rela *rela)
0451c93c 3705{
0f042c67
AK		 3706 bfd *abfd = info->output_bfd;
3707 const struct elf_backend_data *bed = get_elf_backend_data (abfd);
3708 struct elf_s390_link_hash_table *htab = elf_s390_hash_table (info);
3709 unsigned long r_symndx = ELF32_R_SYM (rela->r_info);
3710 Elf_Internal_Sym sym;
3711
3712 if (htab->elf.dynsym == NULL
3713 || !bed->s->swap_symbol_in (abfd,
3714 (htab->elf.dynsym->contents
3715 + r_symndx * bed->s->sizeof_sym),
3716 0, &sym))
3717 abort ();
3718
3719 /* Check relocation against STT_GNU_IFUNC symbol. */
3720 if (ELF_ST_TYPE (sym.st_info) == STT_GNU_IFUNC)
3721 return reloc_class_ifunc;
3722
0451c93c
MS		 3723 switch ((int) ELF32_R_TYPE (rela->r_info))
3724 {
3725 case R_390_RELATIVE:
3726 return reloc_class_relative;
3727 case R_390_JMP_SLOT:
3728 return reloc_class_plt;
3729 case R_390_COPY:
3730 return reloc_class_copy;
3731 default:
3732 return reloc_class_normal;
3733 }
3734}
3735
a85d7ed0
NC		 3736/* Finish up the dynamic sections. */
3737
b34976b6 3738static bfd_boolean
2c3fc389
NC		 3739elf_s390_finish_dynamic_sections (bfd *output_bfd,
3740 struct bfd_link_info *info)
a85d7ed0 3741{
0451c93c 3742 struct elf_s390_link_hash_table *htab;
a85d7ed0
NC		 3743 bfd *dynobj;
3744 asection *sdyn;
470b557a
AK		 3745 bfd *ibfd;
3746 unsigned int i;
a85d7ed0 3747
0451c93c
MS		 3748 htab = elf_s390_hash_table (info);
3749 dynobj = htab->elf.dynobj;
3d4d4302 3750 sdyn = bfd_get_linker_section (dynobj, ".dynamic");
a85d7ed0 3751
0451c93c 3752 if (htab->elf.dynamic_sections_created)
a85d7ed0 3753 {
a85d7ed0
NC		 3754 Elf32_External_Dyn *dyncon, *dynconend;
3755
f41345a7 3756 if (sdyn == NULL || htab->elf.sgot == NULL)
0451c93c 3757 abort ();
a85d7ed0
NC		 3758
3759 dyncon = (Elf32_External_Dyn *) sdyn->contents;
eea6121a 3760 dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size);
a85d7ed0
NC		 3761 for (; dyncon < dynconend; dyncon++)
3762 {
3763 Elf_Internal_Dyn dyn;
a85d7ed0 3764 asection *s;
ec338859 3765
a85d7ed0 3766 bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn);
ec338859 3767
a85d7ed0
NC		 3768 switch (dyn.d_tag)
3769 {
3770 default:
0451c93c 3771 continue;
ec338859 3772
a85d7ed0 3773 case DT_PLTGOT:
4ade44b7
AM		 3774 s = htab->elf.sgotplt;
3775 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
0451c93c 3776 break;
ec338859 3777
a85d7ed0 3778 case DT_JMPREL:
4ade44b7
AM		 3779 s = htab->elf.srelplt;
3780 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
a85d7ed0
NC		 3781 break;
3782
3783 case DT_PLTRELSZ:
79c12fae
AK		 3784 dyn.d_un.d_val = htab->elf.srelplt->size;
3785 if (htab->elf.irelplt)
3786 dyn.d_un.d_val += htab->elf.irelplt->size;
a85d7ed0
NC		 3787 break;
3788 }
0451c93c
MS		 3789
3790 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
a85d7ed0
NC		 3791 }
3792
3793 /* Fill in the special first entry in the procedure linkage table. */
f41345a7 3794 if (htab->elf.splt && htab->elf.splt->size > 0)
a85d7ed0 3795 {
f41345a7 3796 memset (htab->elf.splt->contents, 0, PLT_FIRST_ENTRY_SIZE);
0e1862bb 3797 if (bfd_link_pic (info))
0451c93c 3798 {
f41345a7 3799 memcpy (htab->elf.splt->contents, elf_s390_plt_pic_first_entry,
9aa17453
AK		 3800 PLT_FIRST_ENTRY_SIZE);
3801 }
26e41594 3802 else
9aa17453 3803 {
f41345a7 3804 memcpy (htab->elf.splt->contents, elf_s390_plt_first_entry,
9aa17453 3805 PLT_FIRST_ENTRY_SIZE);
26e41594 3806 bfd_put_32 (output_bfd,
f41345a7
AK		 3807 htab->elf.sgotplt->output_section->vma
3808 + htab->elf.sgotplt->output_offset,
3809 htab->elf.splt->contents + 24);
ceada896 3810 }
f41345a7 3811 elf_section_data (htab->elf.splt->output_section)
0451c93c 3812 ->this_hdr.sh_entsize = 4;
a85d7ed0
NC		 3813 }
3814
3815 }
3816
f41345a7 3817 if (htab->elf.sgotplt)
a85d7ed0 3818 {
0451c93c 3819 /* Fill in the first three entries in the global offset table. */
f41345a7 3820 if (htab->elf.sgotplt->size > 0)
0451c93c
MS		 3821 {
3822 bfd_put_32 (output_bfd,
3823 (sdyn == NULL ? (bfd_vma) 0
3824 : sdyn->output_section->vma + sdyn->output_offset),
f41345a7 3825 htab->elf.sgotplt->contents);
0451c93c 3826 /* One entry for shared object struct ptr. */
f41345a7 3827 bfd_put_32 (output_bfd, (bfd_vma) 0, htab->elf.sgotplt->contents + 4);
0451c93c 3828 /* One entry for _dl_runtime_resolve. */
f41345a7 3829 bfd_put_32 (output_bfd, (bfd_vma) 0, htab->elf.sgotplt->contents + 8);
0451c93c 3830 }
a85d7ed0 3831
f41345a7 3832 elf_section_data (htab->elf.sgotplt->output_section)
0451c93c
MS		 3833 ->this_hdr.sh_entsize = 4;
3834 }
470b557a 3835 /* Finish dynamic symbol for local IFUNC symbols. */
c72f2fb2 3836 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next)
470b557a
AK		 3837 {
3838 struct plt_entry *local_plt;
3839 Elf_Internal_Sym *isym;
3840 Elf_Internal_Shdr *symtab_hdr;
3841
3842 symtab_hdr = &elf_symtab_hdr (ibfd);
3843
1ef692ea
AK		 3844 if (!is_s390_elf (ibfd))
3845 continue;
3846
470b557a
AK		 3847 local_plt = elf_s390_local_plt (ibfd);
3848 if (local_plt != NULL)
3849 for (i = 0; i < symtab_hdr->sh_info; i++)
3850 {
3851 if (local_plt[i].plt.offset != (bfd_vma) -1)
3852 {
3853 asection *sec = local_plt[i].sec;
3854 isym = bfd_sym_from_r_symndx (&htab->sym_cache, ibfd, i);
3855 if (isym == NULL)
3856 return FALSE;
3857
3858 if (ELF_ST_TYPE (isym->st_info) == STT_GNU_IFUNC)
3859 elf_s390_finish_ifunc_symbol (output_bfd, info, NULL, htab,
3860 local_plt[i].plt.offset,
3861 isym->st_value
3862 + sec->output_section->vma
3863 + sec->output_offset);
3864
3865 }
3866 }
3867 }
b34976b6 3868 return TRUE;
a85d7ed0 3869}
e3e9290d
AA		 3870\f
3871/* Support for core dump NOTE sections. */
a85d7ed0 3872
b34976b6 3873static bfd_boolean
2c3fc389 3874elf_s390_grok_prstatus (bfd * abfd, Elf_Internal_Note * note)
979f4a38
NC		 3875{
3876 int offset;
eea6121a 3877 unsigned int size;
979f4a38
NC		 3878
3879 switch (note->descsz)
3880 {
ceada896
AA		 3881 default:
3882 return FALSE;
979f4a38 3883
ceada896
AA		 3884 case 224: /* S/390 Linux. */
3885 /* pr_cursig */
3886 elf_tdata (abfd)->core->signal = bfd_get_16 (abfd, note->descdata + 12);
979f4a38 3887
ceada896
AA		 3888 /* pr_pid */
3889 elf_tdata (abfd)->core->lwpid = bfd_get_32 (abfd, note->descdata + 24);
979f4a38 3890
ceada896
AA		 3891 /* pr_reg */
3892 offset = 72;
3893 size = 144;
3894 break;
979f4a38
NC		 3895 }
3896
3897 /* Make a ".reg/999" section. */
3898 return _bfd_elfcore_make_pseudosection (abfd, ".reg",
eea6121a 3899 size, note->descpos + offset);
979f4a38
NC		 3900}
3901
e3e9290d
AA		 3902static bfd_boolean
3903elf_s390_grok_psinfo (bfd *abfd, Elf_Internal_Note *note)
3904{
3905 switch (note->descsz)
3906 {
3907 default:
3908 return FALSE;
3909
3910 case 124: /* sizeof(struct elf_prpsinfo) on s390 */
3911 elf_tdata (abfd)->core->pid
3912 = bfd_get_32 (abfd, note->descdata + 12);
3913 elf_tdata (abfd)->core->program
3914 = _bfd_elfcore_strndup (abfd, note->descdata + 28, 16);
3915 elf_tdata (abfd)->core->command
3916 = _bfd_elfcore_strndup (abfd, note->descdata + 44, 80);
3917 break;
3918 }
3919
3920 /* Note that for some reason, a spurious space is tacked
3921 onto the end of the args in some (at least one anyway)
3922 implementations, so strip it off if it exists. */
3923
3924 {
3925 char *command = elf_tdata (abfd)->core->command;
3926 int n = strlen (command);
3927
3928 if (0 < n && command[n - 1] == ' ')
3929 command[n - 1] = '\0';
3930 }
3931
3932 return TRUE;
3933}
3934
3935static char *
3936elf_s390_write_core_note (bfd *abfd, char *buf, int *bufsiz,
3937 int note_type, ...)
3938{
3939 va_list ap;
3940
3941 switch (note_type)
3942 {
3943 default:
3944 return NULL;
3945
3946 case NT_PRPSINFO:
3947 {
602f1657 3948 char data[124] ATTRIBUTE_NONSTRING = { 0 };
e3e9290d
AA		 3949 const char *fname, *psargs;
3950
3951 va_start (ap, note_type);
3952 fname = va_arg (ap, const char *);
3953 psargs = va_arg (ap, const char *);
3954 va_end (ap);
3955
3956 strncpy (data + 28, fname, 16);
898ade12 3957#if GCC_VERSION == 8000 || GCC_VERSION == 8001
95da9854 3958 DIAGNOSTIC_PUSH;
be3e27bb 3959 /* GCC 8.0 and 8.1 warn about 80 equals destination size with
95da9854
L		 3960 -Wstringop-truncation:
3961 https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85643
3962 */
95da9854
L		 3963 DIAGNOSTIC_IGNORE_STRINGOP_TRUNCATION;
3964#endif
e3e9290d 3965 strncpy (data + 44, psargs, 80);
898ade12 3966#if GCC_VERSION == 8000 || GCC_VERSION == 8001
95da9854 3967 DIAGNOSTIC_POP;
fe75810f 3968#endif
e3e9290d
AA		 3969 return elfcore_write_note (abfd, buf, bufsiz, "CORE", note_type,
3970 &data, sizeof (data));
3971 }
3972
3973 case NT_PRSTATUS:
3974 {
3975 char data[224] = { 0 };
3976 long pid;
3977 int cursig;
3978 const void *gregs;
3979
3980 va_start (ap, note_type);
3981 pid = va_arg (ap, long);
3982 cursig = va_arg (ap, int);
3983 gregs = va_arg (ap, const void *);
3984 va_end (ap);
3985
3986 bfd_put_16 (abfd, cursig, data + 12);
3987 bfd_put_32 (abfd, pid, data + 24);
3988 memcpy (data + 72, gregs, 144);
3989 return elfcore_write_note (abfd, buf, bufsiz, "CORE", note_type,
3990 &data, sizeof (data));
3991 }
3992 }
3993 /* NOTREACHED */
3994}
3995\f
4c45e5c9
JJ		 3996/* Return address for Ith PLT stub in section PLT, for relocation REL
3997 or (bfd_vma) -1 if it should not be included. */
3998
3999static bfd_vma
4000elf_s390_plt_sym_val (bfd_vma i, const asection *plt,
4001 const arelent *rel ATTRIBUTE_UNUSED)
4002{
4003 return plt->vma + PLT_FIRST_ENTRY_SIZE + i * PLT_ENTRY_SIZE;
4004}
4005
643f7afb
AK		 4006/* Merge backend specific data from an object file to the output
4007 object file when linking. */
4008
55786da2 4009static bfd_boolean
50e03d47 4010elf32_s390_merge_private_bfd_data (bfd *ibfd, struct bfd_link_info *info)
55786da2 4011{
50e03d47
AM		 4012 bfd *obfd = info->output_bfd;
4013
643f7afb
AK		 4014 if (!is_s390_elf (ibfd) || !is_s390_elf (obfd))
4015 return TRUE;
4016
50e03d47 4017 if (!elf_s390_merge_obj_attributes (ibfd, info))
643f7afb
AK		 4018 return FALSE;
4019
55786da2
AK		 4020 elf_elfheader (obfd)->e_flags |= elf_elfheader (ibfd)->e_flags;
4021 return TRUE;
4022}
4023
4c45e5c9 4024
6d00b590 4025#define TARGET_BIG_SYM s390_elf32_vec
a85d7ed0
NC		 4026#define TARGET_BIG_NAME "elf32-s390"
4027#define ELF_ARCH bfd_arch_s390
ae95ffa6 4028#define ELF_TARGET_ID S390_ELF_DATA
a85d7ed0
NC		 4029#define ELF_MACHINE_CODE EM_S390
4030#define ELF_MACHINE_ALT1 EM_S390_OLD
4031#define ELF_MAXPAGESIZE 0x1000
4032
4033#define elf_backend_can_gc_sections 1
51b64d56 4034#define elf_backend_can_refcount 1
a85d7ed0
NC		 4035#define elf_backend_want_got_plt 1
4036#define elf_backend_plt_readonly 1
4037#define elf_backend_want_plt_sym 0
4038#define elf_backend_got_header_size 12
5474d94f 4039#define elf_backend_want_dynrelro 1
b491616a 4040#define elf_backend_rela_normal 1
a85d7ed0 4041
26e41594 4042#define elf_info_to_howto elf_s390_info_to_howto
a85d7ed0 4043
a85d7ed0
NC		 4044#define bfd_elf32_bfd_is_local_label_name elf_s390_is_local_label_name
4045#define bfd_elf32_bfd_link_hash_table_create elf_s390_link_hash_table_create
4046#define bfd_elf32_bfd_reloc_type_lookup elf_s390_reloc_type_lookup
157090f7 4047#define bfd_elf32_bfd_reloc_name_lookup elf_s390_reloc_name_lookup
a85d7ed0 4048
55786da2
AK		 4049#define bfd_elf32_bfd_merge_private_bfd_data elf32_s390_merge_private_bfd_data
4050
a85d7ed0 4051#define elf_backend_adjust_dynamic_symbol elf_s390_adjust_dynamic_symbol
26e41594 4052#define elf_backend_check_relocs elf_s390_check_relocs
0451c93c 4053#define elf_backend_copy_indirect_symbol elf_s390_copy_indirect_symbol
9d19e4fd 4054#define elf_backend_create_dynamic_sections _bfd_elf_create_dynamic_sections
a85d7ed0
NC		 4055#define elf_backend_finish_dynamic_sections elf_s390_finish_dynamic_sections
4056#define elf_backend_finish_dynamic_symbol elf_s390_finish_dynamic_symbol
26e41594 4057#define elf_backend_gc_mark_hook elf_s390_gc_mark_hook
0451c93c 4058#define elf_backend_reloc_type_class elf_s390_reloc_type_class
26e41594 4059#define elf_backend_relocate_section elf_s390_relocate_section
a85d7ed0 4060#define elf_backend_size_dynamic_sections elf_s390_size_dynamic_sections
74541ad4 4061#define elf_backend_init_index_section _bfd_elf_init_1_index_section
979f4a38 4062#define elf_backend_grok_prstatus elf_s390_grok_prstatus
e3e9290d
AA		 4063#define elf_backend_grok_psinfo elf_s390_grok_psinfo
4064#define elf_backend_write_core_note elf_s390_write_core_note
4c45e5c9 4065#define elf_backend_plt_sym_val elf_s390_plt_sym_val
07d6d2b8 4066#define elf_backend_sort_relocs_p elf_s390_elf_sort_relocs_p
a85d7ed0 4067
69fc87f1 4068#define bfd_elf32_mkobject elf_s390_mkobject
26e41594 4069#define elf_backend_object_p elf_s390_object_p
a85d7ed0 4070
a2f63b2e
MR		 4071#define elf_backend_linux_prpsinfo32_ugid16 TRUE
4072
a85d7ed0 4073#include "elf32-target.h"
GDB Binutils - Deliverables
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