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a85d7ed0 | 1 | /* IBM S/390-specific support for 64-bit ELF |
2571583a | 2 | Copyright (C) 2000-2017 Free Software Foundation, Inc. |
a85d7ed0 NC |
3 | Contributed Martin Schwidefsky ([email protected]). |
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 NC |
29 | |
30 | /* In case we're on a 32-bit machine, construct a 64-bit "-1" value | |
31 | from smaller values. Start with zero, widen, *then* decrement. */ | |
32 | #define MINUS_ONE (((bfd_vma)0) - 1) | |
33 | ||
2c3fc389 NC |
34 | static bfd_reloc_status_type |
35 | s390_tls_reloc (bfd *, arelent *, asymbol *, void *, | |
36 | asection *, bfd *, char **); | |
37 | static bfd_reloc_status_type | |
38 | s390_elf_ldisp_reloc (bfd *, arelent *, asymbol *, void *, | |
39 | asection *, bfd *, char **); | |
40 | ||
a85d7ed0 NC |
41 | /* The relocation "howto" table. */ |
42 | static reloc_howto_type elf_howto_table[] = | |
43 | { | |
44 | HOWTO (R_390_NONE, /* type */ | |
45 | 0, /* rightshift */ | |
6346d5ca | 46 | 3, /* size (0 = byte, 1 = 2 byte, 2 = 4 byte) */ |
a85d7ed0 | 47 | 0, /* bitsize */ |
b34976b6 | 48 | FALSE, /* pc_relative */ |
a85d7ed0 NC |
49 | 0, /* bitpos */ |
50 | complain_overflow_dont, /* complain_on_overflow */ | |
51 | bfd_elf_generic_reloc, /* special_function */ | |
52 | "R_390_NONE", /* name */ | |
b34976b6 | 53 | FALSE, /* partial_inplace */ |
a85d7ed0 NC |
54 | 0, /* src_mask */ |
55 | 0, /* dst_mask */ | |
b34976b6 AM |
56 | FALSE), /* pcrel_offset */ |
57 | ||
5236c819 MS |
58 | HOWTO(R_390_8, 0, 0, 8, FALSE, 0, complain_overflow_bitfield, |
59 | bfd_elf_generic_reloc, "R_390_8", FALSE, 0,0x000000ff, FALSE), | |
60 | HOWTO(R_390_12, 0, 1, 12, FALSE, 0, complain_overflow_dont, | |
61 | bfd_elf_generic_reloc, "R_390_12", FALSE, 0,0x00000fff, FALSE), | |
62 | HOWTO(R_390_16, 0, 1, 16, FALSE, 0, complain_overflow_bitfield, | |
63 | bfd_elf_generic_reloc, "R_390_16", FALSE, 0,0x0000ffff, FALSE), | |
64 | HOWTO(R_390_32, 0, 2, 32, FALSE, 0, complain_overflow_bitfield, | |
65 | bfd_elf_generic_reloc, "R_390_32", FALSE, 0,0xffffffff, FALSE), | |
66 | HOWTO(R_390_PC32, 0, 2, 32, TRUE, 0, complain_overflow_bitfield, | |
67 | bfd_elf_generic_reloc, "R_390_PC32", FALSE, 0,0xffffffff, TRUE), | |
15f8604d | 68 | HOWTO(R_390_GOT12, 0, 1, 12, FALSE, 0, complain_overflow_bitfield, |
5236c819 MS |
69 | bfd_elf_generic_reloc, "R_390_GOT12", FALSE, 0,0x00000fff, FALSE), |
70 | HOWTO(R_390_GOT32, 0, 2, 32, FALSE, 0, complain_overflow_bitfield, | |
71 | bfd_elf_generic_reloc, "R_390_GOT32", FALSE, 0,0xffffffff, FALSE), | |
72 | HOWTO(R_390_PLT32, 0, 2, 32, TRUE, 0, complain_overflow_bitfield, | |
73 | bfd_elf_generic_reloc, "R_390_PLT32", FALSE, 0,0xffffffff, TRUE), | |
74 | HOWTO(R_390_COPY, 0, 4, 64, FALSE, 0, complain_overflow_bitfield, | |
75 | bfd_elf_generic_reloc, "R_390_COPY", FALSE, 0,MINUS_ONE, FALSE), | |
76 | HOWTO(R_390_GLOB_DAT, 0, 4, 64, FALSE, 0, complain_overflow_bitfield, | |
77 | bfd_elf_generic_reloc, "R_390_GLOB_DAT", FALSE, 0,MINUS_ONE, FALSE), | |
78 | HOWTO(R_390_JMP_SLOT, 0, 4, 64, FALSE, 0, complain_overflow_bitfield, | |
79 | bfd_elf_generic_reloc, "R_390_JMP_SLOT", FALSE, 0,MINUS_ONE, FALSE), | |
80 | HOWTO(R_390_RELATIVE, 0, 4, 64, TRUE, 0, complain_overflow_bitfield, | |
81 | bfd_elf_generic_reloc, "R_390_RELATIVE", FALSE, 0,MINUS_ONE, FALSE), | |
82 | HOWTO(R_390_GOTOFF32, 0, 2, 32, FALSE, 0, complain_overflow_bitfield, | |
83 | bfd_elf_generic_reloc, "R_390_GOTOFF32", FALSE, 0,MINUS_ONE, FALSE), | |
84 | HOWTO(R_390_GOTPC, 0, 4, 64, TRUE, 0, complain_overflow_bitfield, | |
85 | bfd_elf_generic_reloc, "R_390_GOTPC", FALSE, 0,MINUS_ONE, TRUE), | |
86 | HOWTO(R_390_GOT16, 0, 1, 16, FALSE, 0, complain_overflow_bitfield, | |
87 | bfd_elf_generic_reloc, "R_390_GOT16", FALSE, 0,0x0000ffff, FALSE), | |
88 | HOWTO(R_390_PC16, 0, 1, 16, TRUE, 0, complain_overflow_bitfield, | |
89 | bfd_elf_generic_reloc, "R_390_PC16", FALSE, 0,0x0000ffff, TRUE), | |
90 | HOWTO(R_390_PC16DBL, 1, 1, 16, TRUE, 0, complain_overflow_bitfield, | |
91 | bfd_elf_generic_reloc, "R_390_PC16DBL", FALSE, 0,0x0000ffff, TRUE), | |
92 | HOWTO(R_390_PLT16DBL, 1, 1, 16, TRUE, 0, complain_overflow_bitfield, | |
93 | bfd_elf_generic_reloc, "R_390_PLT16DBL", FALSE, 0,0x0000ffff, TRUE), | |
94 | HOWTO(R_390_PC32DBL, 1, 2, 32, TRUE, 0, complain_overflow_bitfield, | |
95 | bfd_elf_generic_reloc, "R_390_PC32DBL", FALSE, 0,0xffffffff, TRUE), | |
96 | HOWTO(R_390_PLT32DBL, 1, 2, 32, TRUE, 0, complain_overflow_bitfield, | |
97 | bfd_elf_generic_reloc, "R_390_PLT32DBL", FALSE, 0,0xffffffff, TRUE), | |
98 | HOWTO(R_390_GOTPCDBL, 1, 2, 32, TRUE, 0, complain_overflow_bitfield, | |
99 | bfd_elf_generic_reloc, "R_390_GOTPCDBL", FALSE, 0,MINUS_ONE, TRUE), | |
100 | HOWTO(R_390_64, 0, 4, 64, FALSE, 0, complain_overflow_bitfield, | |
101 | bfd_elf_generic_reloc, "R_390_64", FALSE, 0,MINUS_ONE, FALSE), | |
102 | HOWTO(R_390_PC64, 0, 4, 64, TRUE, 0, complain_overflow_bitfield, | |
103 | bfd_elf_generic_reloc, "R_390_PC64", FALSE, 0,MINUS_ONE, TRUE), | |
104 | HOWTO(R_390_GOT64, 0, 4, 64, FALSE, 0, complain_overflow_bitfield, | |
105 | bfd_elf_generic_reloc, "R_390_GOT64", FALSE, 0,MINUS_ONE, FALSE), | |
106 | HOWTO(R_390_PLT64, 0, 4, 64, TRUE, 0, complain_overflow_bitfield, | |
107 | bfd_elf_generic_reloc, "R_390_PLT64", FALSE, 0,MINUS_ONE, TRUE), | |
108 | HOWTO(R_390_GOTENT, 1, 2, 32, TRUE, 0, complain_overflow_bitfield, | |
109 | bfd_elf_generic_reloc, "R_390_GOTENT", FALSE, 0,MINUS_ONE, TRUE), | |
110 | HOWTO(R_390_GOTOFF16, 0, 1, 16, FALSE, 0, complain_overflow_bitfield, | |
111 | bfd_elf_generic_reloc, "R_390_GOTOFF16", FALSE, 0,0x0000ffff, FALSE), | |
112 | HOWTO(R_390_GOTOFF64, 0, 4, 64, FALSE, 0, complain_overflow_bitfield, | |
113 | bfd_elf_generic_reloc, "R_390_GOTOFF64", FALSE, 0,MINUS_ONE, FALSE), | |
114 | HOWTO(R_390_GOTPLT12, 0, 1, 12, FALSE, 0, complain_overflow_dont, | |
115 | bfd_elf_generic_reloc, "R_390_GOTPLT12", FALSE, 0,0x00000fff, FALSE), | |
116 | HOWTO(R_390_GOTPLT16, 0, 1, 16, FALSE, 0, complain_overflow_bitfield, | |
117 | bfd_elf_generic_reloc, "R_390_GOTPLT16", FALSE, 0,0x0000ffff, FALSE), | |
118 | HOWTO(R_390_GOTPLT32, 0, 2, 32, FALSE, 0, complain_overflow_bitfield, | |
119 | bfd_elf_generic_reloc, "R_390_GOTPLT32", FALSE, 0,0xffffffff, FALSE), | |
120 | HOWTO(R_390_GOTPLT64, 0, 4, 64, FALSE, 0, complain_overflow_bitfield, | |
121 | bfd_elf_generic_reloc, "R_390_GOTPLT64", FALSE, 0,MINUS_ONE, FALSE), | |
122 | HOWTO(R_390_GOTPLTENT, 1, 2, 32, TRUE, 0, complain_overflow_bitfield, | |
123 | bfd_elf_generic_reloc, "R_390_GOTPLTENT",FALSE, 0,MINUS_ONE, TRUE), | |
124 | HOWTO(R_390_PLTOFF16, 0, 1, 16, FALSE, 0, complain_overflow_bitfield, | |
125 | bfd_elf_generic_reloc, "R_390_PLTOFF16", FALSE, 0,0x0000ffff, FALSE), | |
126 | HOWTO(R_390_PLTOFF32, 0, 2, 32, FALSE, 0, complain_overflow_bitfield, | |
127 | bfd_elf_generic_reloc, "R_390_PLTOFF32", FALSE, 0,0xffffffff, FALSE), | |
128 | HOWTO(R_390_PLTOFF64, 0, 4, 64, FALSE, 0, complain_overflow_bitfield, | |
129 | bfd_elf_generic_reloc, "R_390_PLTOFF64", FALSE, 0,MINUS_ONE, FALSE), | |
69fc87f1 MS |
130 | HOWTO(R_390_TLS_LOAD, 0, 0, 0, FALSE, 0, complain_overflow_dont, |
131 | s390_tls_reloc, "R_390_TLS_LOAD", FALSE, 0, 0, FALSE), | |
132 | HOWTO(R_390_TLS_GDCALL, 0, 0, 0, FALSE, 0, complain_overflow_dont, | |
133 | s390_tls_reloc, "R_390_TLS_GDCALL", FALSE, 0, 0, FALSE), | |
134 | HOWTO(R_390_TLS_LDCALL, 0, 0, 0, FALSE, 0, complain_overflow_dont, | |
135 | s390_tls_reloc, "R_390_TLS_LDCALL", FALSE, 0, 0, FALSE), | |
136 | EMPTY_HOWTO (R_390_TLS_GD32), /* Empty entry for R_390_TLS_GD32. */ | |
137 | HOWTO(R_390_TLS_GD64, 0, 4, 64, FALSE, 0, complain_overflow_bitfield, | |
138 | bfd_elf_generic_reloc, "R_390_TLS_GD64", FALSE, 0, MINUS_ONE, FALSE), | |
139 | HOWTO(R_390_TLS_GOTIE12, 0, 1, 12, FALSE, 0, complain_overflow_dont, | |
140 | bfd_elf_generic_reloc, "R_390_TLS_GOTIE12", FALSE, 0, 0x00000fff, FALSE), | |
141 | EMPTY_HOWTO (R_390_TLS_GOTIE32), /* Empty entry for R_390_TLS_GOTIE32. */ | |
142 | HOWTO(R_390_TLS_GOTIE64, 0, 4, 64, FALSE, 0, complain_overflow_bitfield, | |
143 | bfd_elf_generic_reloc, "R_390_TLS_GOTIE64", FALSE, 0, MINUS_ONE, FALSE), | |
144 | EMPTY_HOWTO (R_390_TLS_LDM32), /* Empty entry for R_390_TLS_LDM32. */ | |
145 | HOWTO(R_390_TLS_LDM64, 0, 4, 64, FALSE, 0, complain_overflow_bitfield, | |
146 | bfd_elf_generic_reloc, "R_390_TLS_LDM64", FALSE, 0, MINUS_ONE, FALSE), | |
147 | EMPTY_HOWTO (R_390_TLS_IE32), /* Empty entry for R_390_TLS_IE32. */ | |
148 | HOWTO(R_390_TLS_IE64, 0, 4, 64, FALSE, 0, complain_overflow_bitfield, | |
149 | bfd_elf_generic_reloc, "R_390_TLS_IE64", FALSE, 0, MINUS_ONE, FALSE), | |
150 | HOWTO(R_390_TLS_IEENT, 1, 2, 32, TRUE, 0, complain_overflow_bitfield, | |
151 | bfd_elf_generic_reloc, "R_390_TLS_IEENT", FALSE, 0, MINUS_ONE, TRUE), | |
152 | EMPTY_HOWTO (R_390_TLS_LE32), /* Empty entry for R_390_TLS_LE32. */ | |
153 | HOWTO(R_390_TLS_LE64, 0, 2, 32, FALSE, 0, complain_overflow_bitfield, | |
154 | bfd_elf_generic_reloc, "R_390_TLS_LE64", FALSE, 0, MINUS_ONE, FALSE), | |
155 | EMPTY_HOWTO (R_390_TLS_LDO32), /* Empty entry for R_390_TLS_LDO32. */ | |
156 | HOWTO(R_390_TLS_LDO64, 0, 4, 64, FALSE, 0, complain_overflow_bitfield, | |
157 | bfd_elf_generic_reloc, "R_390_TLS_LDO64", FALSE, 0, MINUS_ONE, FALSE), | |
158 | HOWTO(R_390_TLS_DTPMOD, 0, 4, 64, FALSE, 0, complain_overflow_bitfield, | |
159 | bfd_elf_generic_reloc, "R_390_TLS_DTPMOD", FALSE, 0, MINUS_ONE, FALSE), | |
160 | HOWTO(R_390_TLS_DTPOFF, 0, 4, 64, FALSE, 0, complain_overflow_bitfield, | |
161 | bfd_elf_generic_reloc, "R_390_TLS_DTPOFF", FALSE, 0, MINUS_ONE, FALSE), | |
162 | HOWTO(R_390_TLS_TPOFF, 0, 4, 64, FALSE, 0, complain_overflow_bitfield, | |
163 | bfd_elf_generic_reloc, "R_390_TLS_TPOFF", FALSE, 0, MINUS_ONE, FALSE), | |
bd1ea41b MS |
164 | HOWTO(R_390_20, 0, 2, 20, FALSE, 8, complain_overflow_dont, |
165 | s390_elf_ldisp_reloc, "R_390_20", FALSE, 0,0x0fffff00, FALSE), | |
166 | HOWTO(R_390_GOT20, 0, 2, 20, FALSE, 8, complain_overflow_dont, | |
167 | s390_elf_ldisp_reloc, "R_390_GOT20", FALSE, 0,0x0fffff00, FALSE), | |
168 | HOWTO(R_390_GOTPLT20, 0, 2, 20, FALSE, 8, complain_overflow_dont, | |
169 | s390_elf_ldisp_reloc, "R_390_GOTPLT20", FALSE, 0,0x0fffff00, FALSE), | |
170 | HOWTO(R_390_TLS_GOTIE20, 0, 2, 20, FALSE, 8, complain_overflow_dont, | |
171 | s390_elf_ldisp_reloc, "R_390_TLS_GOTIE20", FALSE, 0,0x0fffff00, FALSE), | |
470b557a AK |
172 | HOWTO(R_390_IRELATIVE, 0, 4, 64, FALSE, 0, complain_overflow_bitfield, |
173 | bfd_elf_generic_reloc, "R_390_IRELATIVE", FALSE, 0, MINUS_ONE, FALSE), | |
fb798c50 AK |
174 | HOWTO(R_390_PC12DBL, 1, 1, 12, TRUE, 0, complain_overflow_bitfield, |
175 | bfd_elf_generic_reloc, "R_390_PC12DBL", FALSE, 0,0x00000fff, TRUE), | |
176 | HOWTO(R_390_PLT12DBL, 1, 1, 12, TRUE, 0, complain_overflow_bitfield, | |
177 | bfd_elf_generic_reloc, "R_390_PLT12DBL", FALSE, 0,0x00000fff, TRUE), | |
178 | HOWTO(R_390_PC24DBL, 1, 2, 24, TRUE, 0, complain_overflow_bitfield, | |
179 | bfd_elf_generic_reloc, "R_390_PC24DBL", FALSE, 0,0x00ffffff, TRUE), | |
180 | HOWTO(R_390_PLT24DBL, 1, 2, 24, TRUE, 0, complain_overflow_bitfield, | |
181 | bfd_elf_generic_reloc, "R_390_PLT24DBL", FALSE, 0,0x00ffffff, TRUE), | |
a85d7ed0 NC |
182 | }; |
183 | ||
184 | /* GNU extension to record C++ vtable hierarchy. */ | |
185 | static reloc_howto_type elf64_s390_vtinherit_howto = | |
b34976b6 | 186 | HOWTO (R_390_GNU_VTINHERIT, 0,4,0,FALSE,0,complain_overflow_dont, NULL, "R_390_GNU_VTINHERIT", FALSE,0, 0, FALSE); |
a85d7ed0 | 187 | static reloc_howto_type elf64_s390_vtentry_howto = |
b34976b6 | 188 | HOWTO (R_390_GNU_VTENTRY, 0,4,0,FALSE,0,complain_overflow_dont, _bfd_elf_rel_vtable_reloc_fn,"R_390_GNU_VTENTRY", FALSE,0,0, FALSE); |
a85d7ed0 NC |
189 | |
190 | static reloc_howto_type * | |
2c3fc389 NC |
191 | elf_s390_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED, |
192 | bfd_reloc_code_real_type code) | |
a85d7ed0 | 193 | { |
0451c93c MS |
194 | switch (code) |
195 | { | |
196 | case BFD_RELOC_NONE: | |
197 | return &elf_howto_table[(int) R_390_NONE]; | |
198 | case BFD_RELOC_8: | |
199 | return &elf_howto_table[(int) R_390_8]; | |
200 | case BFD_RELOC_390_12: | |
201 | return &elf_howto_table[(int) R_390_12]; | |
202 | case BFD_RELOC_16: | |
203 | return &elf_howto_table[(int) R_390_16]; | |
204 | case BFD_RELOC_32: | |
205 | return &elf_howto_table[(int) R_390_32]; | |
206 | case BFD_RELOC_CTOR: | |
207 | return &elf_howto_table[(int) R_390_32]; | |
208 | case BFD_RELOC_32_PCREL: | |
209 | return &elf_howto_table[(int) R_390_PC32]; | |
210 | case BFD_RELOC_390_GOT12: | |
211 | return &elf_howto_table[(int) R_390_GOT12]; | |
212 | case BFD_RELOC_32_GOT_PCREL: | |
213 | return &elf_howto_table[(int) R_390_GOT32]; | |
214 | case BFD_RELOC_390_PLT32: | |
215 | return &elf_howto_table[(int) R_390_PLT32]; | |
216 | case BFD_RELOC_390_COPY: | |
217 | return &elf_howto_table[(int) R_390_COPY]; | |
218 | case BFD_RELOC_390_GLOB_DAT: | |
219 | return &elf_howto_table[(int) R_390_GLOB_DAT]; | |
220 | case BFD_RELOC_390_JMP_SLOT: | |
221 | return &elf_howto_table[(int) R_390_JMP_SLOT]; | |
222 | case BFD_RELOC_390_RELATIVE: | |
223 | return &elf_howto_table[(int) R_390_RELATIVE]; | |
224 | case BFD_RELOC_32_GOTOFF: | |
5236c819 | 225 | return &elf_howto_table[(int) R_390_GOTOFF32]; |
0451c93c MS |
226 | case BFD_RELOC_390_GOTPC: |
227 | return &elf_howto_table[(int) R_390_GOTPC]; | |
228 | case BFD_RELOC_390_GOT16: | |
229 | return &elf_howto_table[(int) R_390_GOT16]; | |
230 | case BFD_RELOC_16_PCREL: | |
231 | return &elf_howto_table[(int) R_390_PC16]; | |
fb798c50 AK |
232 | case BFD_RELOC_390_PC12DBL: |
233 | return &elf_howto_table[(int) R_390_PC12DBL]; | |
234 | case BFD_RELOC_390_PLT12DBL: | |
235 | return &elf_howto_table[(int) R_390_PLT12DBL]; | |
0451c93c MS |
236 | case BFD_RELOC_390_PC16DBL: |
237 | return &elf_howto_table[(int) R_390_PC16DBL]; | |
238 | case BFD_RELOC_390_PLT16DBL: | |
239 | return &elf_howto_table[(int) R_390_PLT16DBL]; | |
fb798c50 AK |
240 | case BFD_RELOC_390_PC24DBL: |
241 | return &elf_howto_table[(int) R_390_PC24DBL]; | |
242 | case BFD_RELOC_390_PLT24DBL: | |
243 | return &elf_howto_table[(int) R_390_PLT24DBL]; | |
0451c93c MS |
244 | case BFD_RELOC_390_PC32DBL: |
245 | return &elf_howto_table[(int) R_390_PC32DBL]; | |
246 | case BFD_RELOC_390_PLT32DBL: | |
247 | return &elf_howto_table[(int) R_390_PLT32DBL]; | |
248 | case BFD_RELOC_390_GOTPCDBL: | |
249 | return &elf_howto_table[(int) R_390_GOTPCDBL]; | |
250 | case BFD_RELOC_64: | |
251 | return &elf_howto_table[(int) R_390_64]; | |
252 | case BFD_RELOC_64_PCREL: | |
253 | return &elf_howto_table[(int) R_390_PC64]; | |
254 | case BFD_RELOC_390_GOT64: | |
255 | return &elf_howto_table[(int) R_390_GOT64]; | |
256 | case BFD_RELOC_390_PLT64: | |
257 | return &elf_howto_table[(int) R_390_PLT64]; | |
258 | case BFD_RELOC_390_GOTENT: | |
259 | return &elf_howto_table[(int) R_390_GOTENT]; | |
5236c819 MS |
260 | case BFD_RELOC_16_GOTOFF: |
261 | return &elf_howto_table[(int) R_390_GOTOFF16]; | |
262 | case BFD_RELOC_390_GOTOFF64: | |
263 | return &elf_howto_table[(int) R_390_GOTOFF64]; | |
264 | case BFD_RELOC_390_GOTPLT12: | |
265 | return &elf_howto_table[(int) R_390_GOTPLT12]; | |
266 | case BFD_RELOC_390_GOTPLT16: | |
267 | return &elf_howto_table[(int) R_390_GOTPLT16]; | |
268 | case BFD_RELOC_390_GOTPLT32: | |
269 | return &elf_howto_table[(int) R_390_GOTPLT32]; | |
270 | case BFD_RELOC_390_GOTPLT64: | |
271 | return &elf_howto_table[(int) R_390_GOTPLT64]; | |
272 | case BFD_RELOC_390_GOTPLTENT: | |
273 | return &elf_howto_table[(int) R_390_GOTPLTENT]; | |
274 | case BFD_RELOC_390_PLTOFF16: | |
275 | return &elf_howto_table[(int) R_390_PLTOFF16]; | |
276 | case BFD_RELOC_390_PLTOFF32: | |
277 | return &elf_howto_table[(int) R_390_PLTOFF32]; | |
278 | case BFD_RELOC_390_PLTOFF64: | |
279 | return &elf_howto_table[(int) R_390_PLTOFF64]; | |
69fc87f1 MS |
280 | case BFD_RELOC_390_TLS_LOAD: |
281 | return &elf_howto_table[(int) R_390_TLS_LOAD]; | |
282 | case BFD_RELOC_390_TLS_GDCALL: | |
283 | return &elf_howto_table[(int) R_390_TLS_GDCALL]; | |
284 | case BFD_RELOC_390_TLS_LDCALL: | |
285 | return &elf_howto_table[(int) R_390_TLS_LDCALL]; | |
286 | case BFD_RELOC_390_TLS_GD64: | |
287 | return &elf_howto_table[(int) R_390_TLS_GD64]; | |
288 | case BFD_RELOC_390_TLS_GOTIE12: | |
289 | return &elf_howto_table[(int) R_390_TLS_GOTIE12]; | |
290 | case BFD_RELOC_390_TLS_GOTIE64: | |
291 | return &elf_howto_table[(int) R_390_TLS_GOTIE64]; | |
292 | case BFD_RELOC_390_TLS_LDM64: | |
293 | return &elf_howto_table[(int) R_390_TLS_LDM64]; | |
294 | case BFD_RELOC_390_TLS_IE64: | |
295 | return &elf_howto_table[(int) R_390_TLS_IE64]; | |
296 | case BFD_RELOC_390_TLS_IEENT: | |
297 | return &elf_howto_table[(int) R_390_TLS_IEENT]; | |
298 | case BFD_RELOC_390_TLS_LE64: | |
299 | return &elf_howto_table[(int) R_390_TLS_LE64]; | |
300 | case BFD_RELOC_390_TLS_LDO64: | |
301 | return &elf_howto_table[(int) R_390_TLS_LDO64]; | |
302 | case BFD_RELOC_390_TLS_DTPMOD: | |
303 | return &elf_howto_table[(int) R_390_TLS_DTPMOD]; | |
304 | case BFD_RELOC_390_TLS_DTPOFF: | |
305 | return &elf_howto_table[(int) R_390_TLS_DTPOFF]; | |
306 | case BFD_RELOC_390_TLS_TPOFF: | |
307 | return &elf_howto_table[(int) R_390_TLS_TPOFF]; | |
bd1ea41b MS |
308 | case BFD_RELOC_390_20: |
309 | return &elf_howto_table[(int) R_390_20]; | |
310 | case BFD_RELOC_390_GOT20: | |
311 | return &elf_howto_table[(int) R_390_GOT20]; | |
312 | case BFD_RELOC_390_GOTPLT20: | |
313 | return &elf_howto_table[(int) R_390_GOTPLT20]; | |
314 | case BFD_RELOC_390_TLS_GOTIE20: | |
315 | return &elf_howto_table[(int) R_390_TLS_GOTIE20]; | |
470b557a AK |
316 | case BFD_RELOC_390_IRELATIVE: |
317 | return &elf_howto_table[(int) R_390_IRELATIVE]; | |
5236c819 MS |
318 | case BFD_RELOC_VTABLE_INHERIT: |
319 | return &elf64_s390_vtinherit_howto; | |
320 | case BFD_RELOC_VTABLE_ENTRY: | |
321 | return &elf64_s390_vtentry_howto; | |
0451c93c MS |
322 | default: |
323 | break; | |
324 | } | |
a85d7ed0 NC |
325 | return 0; |
326 | } | |
327 | ||
157090f7 AM |
328 | static reloc_howto_type * |
329 | elf_s390_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED, | |
330 | const char *r_name) | |
331 | { | |
332 | unsigned int i; | |
333 | ||
334 | for (i = 0; | |
335 | i < sizeof (elf_howto_table) / sizeof (elf_howto_table[0]); | |
336 | i++) | |
337 | if (elf_howto_table[i].name != NULL | |
338 | && strcasecmp (elf_howto_table[i].name, r_name) == 0) | |
339 | return &elf_howto_table[i]; | |
340 | ||
0bc7245a JK |
341 | if (strcasecmp (elf64_s390_vtinherit_howto.name, r_name) == 0) |
342 | return &elf64_s390_vtinherit_howto; | |
343 | if (strcasecmp (elf64_s390_vtentry_howto.name, r_name) == 0) | |
344 | return &elf64_s390_vtentry_howto; | |
157090f7 AM |
345 | |
346 | return NULL; | |
347 | } | |
348 | ||
a85d7ed0 NC |
349 | /* We need to use ELF64_R_TYPE so we have our own copy of this function, |
350 | and elf64-s390.c has its own copy. */ | |
351 | ||
352 | static void | |
2c3fc389 NC |
353 | elf_s390_info_to_howto (bfd *abfd ATTRIBUTE_UNUSED, |
354 | arelent *cache_ptr, | |
355 | Elf_Internal_Rela *dst) | |
a85d7ed0 | 356 | { |
d0fb9a8d JJ |
357 | unsigned int r_type = ELF64_R_TYPE(dst->r_info); |
358 | switch (r_type) | |
a85d7ed0 NC |
359 | { |
360 | case R_390_GNU_VTINHERIT: | |
361 | cache_ptr->howto = &elf64_s390_vtinherit_howto; | |
362 | break; | |
363 | ||
364 | case R_390_GNU_VTENTRY: | |
365 | cache_ptr->howto = &elf64_s390_vtentry_howto; | |
366 | break; | |
367 | ||
368 | default: | |
d0fb9a8d JJ |
369 | if (r_type >= sizeof (elf_howto_table) / sizeof (elf_howto_table[0])) |
370 | { | |
695344c0 | 371 | /* xgettext:c-format */ |
4eca0228 AM |
372 | _bfd_error_handler (_("%B: invalid relocation type %d"), |
373 | abfd, (int) r_type); | |
d0fb9a8d JJ |
374 | r_type = R_390_NONE; |
375 | } | |
376 | cache_ptr->howto = &elf_howto_table[r_type]; | |
99c79b2e | 377 | } |
a85d7ed0 NC |
378 | } |
379 | ||
69fc87f1 MS |
380 | /* A relocation function which doesn't do anything. */ |
381 | static bfd_reloc_status_type | |
2c3fc389 NC |
382 | s390_tls_reloc (bfd *abfd ATTRIBUTE_UNUSED, |
383 | arelent *reloc_entry, | |
384 | asymbol *symbol ATTRIBUTE_UNUSED, | |
385 | void * data ATTRIBUTE_UNUSED, | |
386 | asection *input_section, | |
387 | bfd *output_bfd, | |
388 | char **error_message ATTRIBUTE_UNUSED) | |
69fc87f1 MS |
389 | { |
390 | if (output_bfd) | |
391 | reloc_entry->address += input_section->output_offset; | |
392 | return bfd_reloc_ok; | |
393 | } | |
394 | ||
bd1ea41b MS |
395 | /* Handle the large displacement relocs. */ |
396 | static bfd_reloc_status_type | |
2c3fc389 NC |
397 | s390_elf_ldisp_reloc (bfd *abfd, |
398 | arelent *reloc_entry, | |
399 | asymbol *symbol, | |
400 | void * data, | |
401 | asection *input_section, | |
402 | bfd *output_bfd, | |
403 | char **error_message ATTRIBUTE_UNUSED) | |
bd1ea41b MS |
404 | { |
405 | reloc_howto_type *howto = reloc_entry->howto; | |
406 | bfd_vma relocation; | |
407 | bfd_vma insn; | |
408 | ||
409 | if (output_bfd != (bfd *) NULL | |
410 | && (symbol->flags & BSF_SECTION_SYM) == 0 | |
411 | && (! howto->partial_inplace | |
412 | || reloc_entry->addend == 0)) | |
413 | { | |
414 | reloc_entry->address += input_section->output_offset; | |
415 | return bfd_reloc_ok; | |
416 | } | |
417 | if (output_bfd != NULL) | |
418 | return bfd_reloc_continue; | |
419 | ||
07515404 | 420 | if (reloc_entry->address > bfd_get_section_limit (abfd, input_section)) |
bd1ea41b MS |
421 | return bfd_reloc_outofrange; |
422 | ||
423 | relocation = (symbol->value | |
424 | + symbol->section->output_section->vma | |
425 | + symbol->section->output_offset); | |
426 | relocation += reloc_entry->addend; | |
427 | if (howto->pc_relative) | |
428 | { | |
429 | relocation -= (input_section->output_section->vma | |
430 | + input_section->output_offset); | |
431 | relocation -= reloc_entry->address; | |
432 | } | |
433 | ||
68ffbac6 | 434 | insn = bfd_get_32 (abfd, (bfd_byte *) data + reloc_entry->address); |
bd1ea41b MS |
435 | insn |= (relocation & 0xfff) << 16 | (relocation & 0xff000) >> 4; |
436 | bfd_put_32 (abfd, insn, (bfd_byte *) data + reloc_entry->address); | |
437 | ||
438 | if ((bfd_signed_vma) relocation < - 0x80000 | |
439 | || (bfd_signed_vma) relocation > 0x7ffff) | |
440 | return bfd_reloc_overflow; | |
441 | else | |
442 | return bfd_reloc_ok; | |
443 | } | |
444 | ||
b34976b6 | 445 | static bfd_boolean |
2c3fc389 | 446 | elf_s390_is_local_label_name (bfd *abfd, const char *name) |
a85d7ed0 NC |
447 | { |
448 | if (name[0] == '.' && (name[1] == 'X' || name[1] == 'L')) | |
b34976b6 | 449 | return TRUE; |
a85d7ed0 NC |
450 | |
451 | return _bfd_elf_is_local_label_name (abfd, name); | |
452 | } | |
453 | ||
454 | /* Functions for the 390 ELF linker. */ | |
455 | ||
456 | /* The name of the dynamic interpreter. This is put in the .interp | |
457 | section. */ | |
458 | ||
87049b0d | 459 | #define ELF_DYNAMIC_INTERPRETER "/lib/ld64.so.1" |
a85d7ed0 | 460 | |
64285810 MS |
461 | /* If ELIMINATE_COPY_RELOCS is non-zero, the linker will try to avoid |
462 | copying dynamic variables from a shared lib into an app's dynbss | |
463 | section, and instead use a dynamic relocation to point into the | |
464 | shared lib. */ | |
465 | #define ELIMINATE_COPY_RELOCS 1 | |
466 | ||
a85d7ed0 NC |
467 | /* The size in bytes of the first entry in the procedure linkage table. */ |
468 | #define PLT_FIRST_ENTRY_SIZE 32 | |
469 | /* The size in bytes of an entry in the procedure linkage table. */ | |
99c79b2e | 470 | #define PLT_ENTRY_SIZE 32 |
a85d7ed0 NC |
471 | |
472 | #define GOT_ENTRY_SIZE 8 | |
473 | ||
470b557a AK |
474 | #define RELA_ENTRY_SIZE sizeof (Elf64_External_Rela) |
475 | ||
a85d7ed0 NC |
476 | /* The first three entries in a procedure linkage table are reserved, |
477 | and the initial contents are unimportant (we zero them out). | |
478 | Subsequent entries look like this. See the SVR4 ABI 386 | |
479 | supplement to see how this works. */ | |
480 | ||
481 | /* For the s390, simple addr offset can only be 0 - 4096. | |
482 | To use the full 16777216 TB address space, several instructions | |
483 | are needed to load an address in a register and execute | |
484 | a branch( or just saving the address) | |
485 | ||
99c79b2e | 486 | Furthermore, only r 0 and 1 are free to use!!! */ |
a85d7ed0 NC |
487 | |
488 | /* The first 3 words in the GOT are then reserved. | |
489 | Word 0 is the address of the dynamic table. | |
490 | Word 1 is a pointer to a structure describing the object | |
491 | Word 2 is used to point to the loader entry address. | |
492 | ||
493 | The code for PLT entries looks like this: | |
494 | ||
495 | The GOT holds the address in the PLT to be executed. | |
496 | The loader then gets: | |
3b67f094 MK |
497 | 48(15) = Pointer to the structure describing the object. |
498 | 56(15) = Offset in symbol table | |
a85d7ed0 NC |
499 | The loader must then find the module where the function is |
500 | and insert the address in the GOT. | |
501 | ||
502 | PLT1: LARL 1,<fn>@GOTENT # 6 bytes Load address of GOT entry in r1 | |
503 | LG 1,0(1) # 6 bytes Load address from GOT in r1 | |
504 | BCR 15,1 # 2 bytes Jump to address | |
505 | RET1: BASR 1,0 # 2 bytes Return from GOT 1st time | |
506 | LGF 1,12(1) # 6 bytes Load offset in symbl table in r1 | |
507 | BRCL 15,-x # 6 bytes Jump to start of PLT | |
a7e28bbe | 508 | .long ? # 4 bytes offset into .rela.plt |
a85d7ed0 NC |
509 | |
510 | Total = 32 bytes per PLT entry | |
511 | Fixup at offset 2: relative address to GOT entry | |
512 | Fixup at offset 22: relative branch to PLT0 | |
a7e28bbe | 513 | Fixup at offset 28: 32 bit offset into .rela.plt |
a85d7ed0 | 514 | |
a7e28bbe AK |
515 | A 32 bit offset into the symbol table is enough. It allows for |
516 | .rela.plt sections up to a size of 2 gigabyte. A single dynamic | |
517 | object (the main program, any shared library) is limited to 4GB in | |
518 | size. Having a .rela.plt of 2GB would already make the .plt | |
519 | section bigger than 8GB. */ | |
a85d7ed0 | 520 | |
9aa17453 AK |
521 | static const bfd_byte elf_s390x_plt_entry[PLT_ENTRY_SIZE] = |
522 | { | |
523 | 0xc0, 0x10, 0x00, 0x00, 0x00, 0x00, /* larl %r1,. */ | |
524 | 0xe3, 0x10, 0x10, 0x00, 0x00, 0x04, /* lg %r1,0(%r1) */ | |
525 | 0x07, 0xf1, /* br %r1 */ | |
526 | 0x0d, 0x10, /* basr %r1,%r0 */ | |
527 | 0xe3, 0x10, 0x10, 0x0c, 0x00, 0x14, /* lgf %r1,12(%r1) */ | |
528 | 0xc0, 0xf4, 0x00, 0x00, 0x00, 0x00, /* jg first plt */ | |
529 | 0x00, 0x00, 0x00, 0x00 /* .long 0x00000000 */ | |
530 | }; | |
a85d7ed0 NC |
531 | |
532 | /* The first PLT entry pushes the offset into the symbol table | |
a7e28bbe AK |
533 | from R1 onto the stack at 56(15) and the loader object info |
534 | at 48(15), loads the loader address in R1 and jumps to it. */ | |
a85d7ed0 NC |
535 | |
536 | /* The first entry in the PLT: | |
537 | ||
538 | PLT0: | |
539 | STG 1,56(15) # r1 contains the offset into the symbol table | |
540 | LARL 1,_GLOBAL_OFFSET_TABLE # load address of global offset table | |
541 | MVC 48(8,15),8(1) # move loader ino (object struct address) to stack | |
542 | LG 1,16(1) # get entry address of loader | |
543 | BCR 15,1 # jump to loader | |
544 | ||
545 | Fixup at offset 8: relative address to start of GOT. */ | |
546 | ||
9aa17453 AK |
547 | static const bfd_byte elf_s390x_first_plt_entry[PLT_FIRST_ENTRY_SIZE] = |
548 | { | |
549 | 0xe3, 0x10, 0xf0, 0x38, 0x00, 0x24, /* stg %r1,56(%r15) */ | |
550 | 0xc0, 0x10, 0x00, 0x00, 0x00, 0x00, /* larl %r1,. */ | |
551 | 0xd2, 0x07, 0xf0, 0x30, 0x10, 0x08, /* mvc 48(8,%r15),8(%r1) */ | |
552 | 0xe3, 0x10, 0x10, 0x10, 0x00, 0x04, /* lg %r1,16(%r1) */ | |
553 | 0x07, 0xf1, /* br %r1 */ | |
554 | 0x07, 0x00, /* nopr %r0 */ | |
555 | 0x07, 0x00, /* nopr %r0 */ | |
556 | 0x07, 0x00 /* nopr %r0 */ | |
557 | }; | |
a85d7ed0 | 558 | |
a85d7ed0 NC |
559 | |
560 | /* s390 ELF linker hash entry. */ | |
561 | ||
562 | struct elf_s390_link_hash_entry | |
563 | { | |
0451c93c | 564 | struct elf_link_hash_entry elf; |
a85d7ed0 | 565 | |
0451c93c | 566 | /* Track dynamic relocs copied for this symbol. */ |
00d8c7a9 | 567 | struct elf_dyn_relocs *dyn_relocs; |
5236c819 MS |
568 | |
569 | /* Number of GOTPLT references for a function. */ | |
570 | bfd_signed_vma gotplt_refcount; | |
69fc87f1 MS |
571 | |
572 | #define GOT_UNKNOWN 0 | |
573 | #define GOT_NORMAL 1 | |
574 | #define GOT_TLS_GD 2 | |
575 | #define GOT_TLS_IE 3 | |
576 | #define GOT_TLS_IE_NLT 3 | |
577 | unsigned char tls_type; | |
470b557a AK |
578 | |
579 | /* For pointer equality reasons we might need to change the symbol | |
580 | type from STT_GNU_IFUNC to STT_FUNC together with its value and | |
581 | section entry. So after alloc_dynrelocs only these values should | |
582 | be used. In order to check whether a symbol is IFUNC use | |
583 | s390_is_ifunc_symbol_p. */ | |
584 | bfd_vma ifunc_resolver_address; | |
585 | asection *ifunc_resolver_section; | |
a85d7ed0 NC |
586 | }; |
587 | ||
69fc87f1 MS |
588 | #define elf_s390_hash_entry(ent) \ |
589 | ((struct elf_s390_link_hash_entry *)(ent)) | |
590 | ||
470b557a AK |
591 | /* This structure represents an entry in the local PLT list needed for |
592 | local IFUNC symbols. */ | |
593 | struct plt_entry | |
594 | { | |
595 | /* The section of the local symbol. | |
596 | Set in relocate_section and used in finish_dynamic_sections. */ | |
597 | asection *sec; | |
598 | ||
599 | union | |
600 | { | |
601 | bfd_signed_vma refcount; | |
602 | bfd_vma offset; | |
603 | } plt; | |
604 | }; | |
605 | ||
0ffa91dd NC |
606 | /* NOTE: Keep this structure in sync with |
607 | the one declared in elf32-s390.c. */ | |
69fc87f1 MS |
608 | struct elf_s390_obj_tdata |
609 | { | |
610 | struct elf_obj_tdata root; | |
611 | ||
470b557a AK |
612 | /* A local PLT is needed for ifunc symbols. */ |
613 | struct plt_entry *local_plt; | |
614 | ||
0ffa91dd | 615 | /* TLS type for each local got entry. */ |
69fc87f1 MS |
616 | char *local_got_tls_type; |
617 | }; | |
618 | ||
619 | #define elf_s390_tdata(abfd) \ | |
620 | ((struct elf_s390_obj_tdata *) (abfd)->tdata.any) | |
621 | ||
470b557a AK |
622 | #define elf_s390_local_plt(abfd) \ |
623 | (elf_s390_tdata (abfd)->local_plt) | |
624 | ||
69fc87f1 MS |
625 | #define elf_s390_local_got_tls_type(abfd) \ |
626 | (elf_s390_tdata (abfd)->local_got_tls_type) | |
627 | ||
0ffa91dd NC |
628 | #define is_s390_elf(bfd) \ |
629 | (bfd_get_flavour (bfd) == bfd_target_elf_flavour \ | |
630 | && elf_tdata (bfd) != NULL \ | |
4dfe6ac6 | 631 | && elf_object_id (bfd) == S390_ELF_DATA) |
0ffa91dd | 632 | |
69fc87f1 | 633 | static bfd_boolean |
62d7a5f6 | 634 | elf_s390_mkobject (bfd *abfd) |
69fc87f1 | 635 | { |
0ffa91dd | 636 | return bfd_elf_allocate_object (abfd, sizeof (struct elf_s390_obj_tdata), |
4dfe6ac6 | 637 | S390_ELF_DATA); |
69fc87f1 MS |
638 | } |
639 | ||
640 | static bfd_boolean | |
2c3fc389 | 641 | elf_s390_object_p (bfd *abfd) |
69fc87f1 | 642 | { |
69fc87f1 MS |
643 | /* Set the right machine number for an s390 elf32 file. */ |
644 | return bfd_default_set_arch_mach (abfd, bfd_arch_s390, bfd_mach_s390_64); | |
645 | } | |
646 | ||
a85d7ed0 NC |
647 | /* s390 ELF linker hash table. */ |
648 | ||
649 | struct elf_s390_link_hash_table | |
650 | { | |
0451c93c | 651 | struct elf_link_hash_table elf; |
a85d7ed0 | 652 | |
0451c93c | 653 | /* Short-cuts to get to dynamic linker sections. */ |
470b557a | 654 | asection *irelifunc; |
ec338859 | 655 | |
69fc87f1 MS |
656 | union { |
657 | bfd_signed_vma refcount; | |
658 | bfd_vma offset; | |
659 | } tls_ldm_got; | |
660 | ||
87d72d41 AM |
661 | /* Small local sym cache. */ |
662 | struct sym_cache sym_cache; | |
0451c93c | 663 | }; |
a85d7ed0 NC |
664 | |
665 | /* Get the s390 ELF linker hash table from a link_info structure. */ | |
666 | ||
ceada896 AA |
667 | #define elf_s390_hash_table(p) \ |
668 | (elf_hash_table_id ((struct elf_link_hash_table *) ((p)->hash)) \ | |
669 | == S390_ELF_DATA ? ((struct elf_s390_link_hash_table *) ((p)->hash)) : NULL) | |
a85d7ed0 | 670 | |
470b557a AK |
671 | #define ELF64 1 |
672 | #include "elf-s390-common.c" | |
673 | ||
a85d7ed0 NC |
674 | /* Create an entry in an s390 ELF linker hash table. */ |
675 | ||
676 | static struct bfd_hash_entry * | |
2c3fc389 NC |
677 | link_hash_newfunc (struct bfd_hash_entry *entry, |
678 | struct bfd_hash_table *table, | |
679 | const char *string) | |
a85d7ed0 | 680 | { |
a85d7ed0 NC |
681 | /* Allocate the structure if it has not already been allocated by a |
682 | subclass. */ | |
0451c93c MS |
683 | if (entry == NULL) |
684 | { | |
685 | entry = bfd_hash_allocate (table, | |
686 | sizeof (struct elf_s390_link_hash_entry)); | |
687 | if (entry == NULL) | |
688 | return entry; | |
689 | } | |
a85d7ed0 NC |
690 | |
691 | /* Call the allocation method of the superclass. */ | |
0451c93c MS |
692 | entry = _bfd_elf_link_hash_newfunc (entry, table, string); |
693 | if (entry != NULL) | |
a85d7ed0 | 694 | { |
0451c93c MS |
695 | struct elf_s390_link_hash_entry *eh; |
696 | ||
697 | eh = (struct elf_s390_link_hash_entry *) entry; | |
698 | eh->dyn_relocs = NULL; | |
5236c819 | 699 | eh->gotplt_refcount = 0; |
69fc87f1 | 700 | eh->tls_type = GOT_UNKNOWN; |
470b557a AK |
701 | eh->ifunc_resolver_address = 0; |
702 | eh->ifunc_resolver_section = NULL; | |
a85d7ed0 NC |
703 | } |
704 | ||
0451c93c | 705 | return entry; |
a85d7ed0 NC |
706 | } |
707 | ||
708 | /* Create an s390 ELF linker hash table. */ | |
709 | ||
710 | static struct bfd_link_hash_table * | |
2c3fc389 | 711 | elf_s390_link_hash_table_create (bfd *abfd) |
a85d7ed0 NC |
712 | { |
713 | struct elf_s390_link_hash_table *ret; | |
dc810e39 | 714 | bfd_size_type amt = sizeof (struct elf_s390_link_hash_table); |
a85d7ed0 | 715 | |
7bf52ea2 | 716 | ret = (struct elf_s390_link_hash_table *) bfd_zmalloc (amt); |
0451c93c | 717 | if (ret == NULL) |
a85d7ed0 NC |
718 | return NULL; |
719 | ||
66eb6687 | 720 | if (!_bfd_elf_link_hash_table_init (&ret->elf, abfd, link_hash_newfunc, |
4dfe6ac6 NC |
721 | sizeof (struct elf_s390_link_hash_entry), |
722 | S390_ELF_DATA)) | |
a85d7ed0 | 723 | { |
e2d34d7d | 724 | free (ret); |
a85d7ed0 NC |
725 | return NULL; |
726 | } | |
727 | ||
0451c93c MS |
728 | return &ret->elf.root; |
729 | } | |
730 | ||
0451c93c MS |
731 | /* Copy the extra info we tack onto an elf_link_hash_entry. */ |
732 | ||
733 | static void | |
2c3fc389 NC |
734 | elf_s390_copy_indirect_symbol (struct bfd_link_info *info, |
735 | struct elf_link_hash_entry *dir, | |
736 | struct elf_link_hash_entry *ind) | |
0451c93c MS |
737 | { |
738 | struct elf_s390_link_hash_entry *edir, *eind; | |
739 | ||
740 | edir = (struct elf_s390_link_hash_entry *) dir; | |
741 | eind = (struct elf_s390_link_hash_entry *) ind; | |
742 | ||
743 | if (eind->dyn_relocs != NULL) | |
744 | { | |
745 | if (edir->dyn_relocs != NULL) | |
746 | { | |
00d8c7a9 AK |
747 | struct elf_dyn_relocs **pp; |
748 | struct elf_dyn_relocs *p; | |
0451c93c | 749 | |
fcfa13d2 | 750 | /* Add reloc counts against the indirect sym to the direct sym |
0451c93c MS |
751 | list. Merge any entries against the same section. */ |
752 | for (pp = &eind->dyn_relocs; (p = *pp) != NULL; ) | |
753 | { | |
00d8c7a9 | 754 | struct elf_dyn_relocs *q; |
0451c93c MS |
755 | |
756 | for (q = edir->dyn_relocs; q != NULL; q = q->next) | |
757 | if (q->sec == p->sec) | |
758 | { | |
759 | q->pc_count += p->pc_count; | |
760 | q->count += p->count; | |
761 | *pp = p->next; | |
762 | break; | |
763 | } | |
764 | if (q == NULL) | |
765 | pp = &p->next; | |
766 | } | |
767 | *pp = edir->dyn_relocs; | |
768 | } | |
769 | ||
770 | edir->dyn_relocs = eind->dyn_relocs; | |
771 | eind->dyn_relocs = NULL; | |
772 | } | |
773 | ||
69fc87f1 MS |
774 | if (ind->root.type == bfd_link_hash_indirect |
775 | && dir->got.refcount <= 0) | |
776 | { | |
777 | edir->tls_type = eind->tls_type; | |
778 | eind->tls_type = GOT_UNKNOWN; | |
779 | } | |
780 | ||
64285810 MS |
781 | if (ELIMINATE_COPY_RELOCS |
782 | && ind->root.type != bfd_link_hash_indirect | |
f5385ebf AM |
783 | && dir->dynamic_adjusted) |
784 | { | |
785 | /* If called to transfer flags for a weakdef during processing | |
786 | of elf_adjust_dynamic_symbol, don't copy non_got_ref. | |
787 | We clear it ourselves for ELIMINATE_COPY_RELOCS. */ | |
e81830c5 AM |
788 | if (dir->versioned != versioned_hidden) |
789 | dir->ref_dynamic |= ind->ref_dynamic; | |
f5385ebf AM |
790 | dir->ref_regular |= ind->ref_regular; |
791 | dir->ref_regular_nonweak |= ind->ref_regular_nonweak; | |
792 | dir->needs_plt |= ind->needs_plt; | |
793 | } | |
64285810 | 794 | else |
fcfa13d2 | 795 | _bfd_elf_link_hash_copy_indirect (info, dir, ind); |
0451c93c | 796 | } |
a85d7ed0 | 797 | |
69fc87f1 | 798 | static int |
2c3fc389 NC |
799 | elf_s390_tls_transition (struct bfd_link_info *info, |
800 | int r_type, | |
801 | int is_local) | |
69fc87f1 | 802 | { |
0e1862bb | 803 | if (bfd_link_pic (info)) |
69fc87f1 MS |
804 | return r_type; |
805 | ||
806 | switch (r_type) | |
807 | { | |
808 | case R_390_TLS_GD64: | |
809 | case R_390_TLS_IE64: | |
810 | if (is_local) | |
811 | return R_390_TLS_LE64; | |
812 | return R_390_TLS_IE64; | |
813 | case R_390_TLS_GOTIE64: | |
814 | if (is_local) | |
815 | return R_390_TLS_LE64; | |
816 | return R_390_TLS_GOTIE64; | |
817 | case R_390_TLS_LDM64: | |
818 | return R_390_TLS_LE64; | |
819 | } | |
820 | ||
821 | return r_type; | |
822 | } | |
823 | ||
a85d7ed0 NC |
824 | /* Look through the relocs for a section during the first phase, and |
825 | allocate space in the global offset table or procedure linkage | |
826 | table. */ | |
827 | ||
b34976b6 | 828 | static bfd_boolean |
4dfe6ac6 NC |
829 | elf_s390_check_relocs (bfd *abfd, |
830 | struct bfd_link_info *info, | |
831 | asection *sec, | |
832 | const Elf_Internal_Rela *relocs) | |
a85d7ed0 | 833 | { |
0451c93c | 834 | struct elf_s390_link_hash_table *htab; |
a85d7ed0 NC |
835 | Elf_Internal_Shdr *symtab_hdr; |
836 | struct elf_link_hash_entry **sym_hashes; | |
a85d7ed0 NC |
837 | const Elf_Internal_Rela *rel; |
838 | const Elf_Internal_Rela *rel_end; | |
a85d7ed0 | 839 | asection *sreloc; |
5236c819 | 840 | bfd_signed_vma *local_got_refcounts; |
69fc87f1 | 841 | int tls_type, old_tls_type; |
a85d7ed0 | 842 | |
0e1862bb | 843 | if (bfd_link_relocatable (info)) |
b34976b6 | 844 | return TRUE; |
a85d7ed0 | 845 | |
0ffa91dd NC |
846 | BFD_ASSERT (is_s390_elf (abfd)); |
847 | ||
0451c93c | 848 | htab = elf_s390_hash_table (info); |
4dfe6ac6 NC |
849 | if (htab == NULL) |
850 | return FALSE; | |
851 | ||
0ffa91dd | 852 | symtab_hdr = &elf_symtab_hdr (abfd); |
a85d7ed0 | 853 | sym_hashes = elf_sym_hashes (abfd); |
5236c819 | 854 | local_got_refcounts = elf_local_got_refcounts (abfd); |
a85d7ed0 | 855 | |
a85d7ed0 NC |
856 | sreloc = NULL; |
857 | ||
858 | rel_end = relocs + sec->reloc_count; | |
859 | for (rel = relocs; rel < rel_end; rel++) | |
860 | { | |
69fc87f1 | 861 | unsigned int r_type; |
a85d7ed0 NC |
862 | unsigned long r_symndx; |
863 | struct elf_link_hash_entry *h; | |
470b557a | 864 | Elf_Internal_Sym *isym; |
a85d7ed0 NC |
865 | |
866 | r_symndx = ELF64_R_SYM (rel->r_info); | |
867 | ||
0451c93c MS |
868 | if (r_symndx >= NUM_SHDR_ENTRIES (symtab_hdr)) |
869 | { | |
695344c0 | 870 | /* xgettext:c-format */ |
4eca0228 AM |
871 | _bfd_error_handler (_("%B: bad symbol index: %d"), |
872 | abfd, r_symndx); | |
b34976b6 | 873 | return FALSE; |
0451c93c MS |
874 | } |
875 | ||
a85d7ed0 | 876 | if (r_symndx < symtab_hdr->sh_info) |
470b557a AK |
877 | { |
878 | /* A local symbol. */ | |
879 | isym = bfd_sym_from_r_symndx (&htab->sym_cache, | |
880 | abfd, r_symndx); | |
881 | if (isym == NULL) | |
882 | return FALSE; | |
883 | ||
884 | if (ELF_ST_TYPE (isym->st_info) == STT_GNU_IFUNC) | |
885 | { | |
886 | struct plt_entry *plt; | |
887 | ||
0cb79d69 AK |
888 | if (htab->elf.dynobj == NULL) |
889 | htab->elf.dynobj = abfd; | |
890 | ||
470b557a AK |
891 | if (!s390_elf_create_ifunc_sections (htab->elf.dynobj, info)) |
892 | return FALSE; | |
893 | ||
894 | if (local_got_refcounts == NULL) | |
895 | { | |
896 | if (!elf_s390_allocate_local_syminfo (abfd, symtab_hdr)) | |
897 | return FALSE; | |
898 | local_got_refcounts = elf_local_got_refcounts (abfd); | |
899 | } | |
900 | plt = elf_s390_local_plt (abfd); | |
901 | plt[r_symndx].plt.refcount++; | |
902 | } | |
903 | h = NULL; | |
904 | } | |
a85d7ed0 | 905 | else |
973a3492 L |
906 | { |
907 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
908 | while (h->root.type == bfd_link_hash_indirect | |
909 | || h->root.type == bfd_link_hash_warning) | |
910 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
81fbe831 AM |
911 | |
912 | /* PR15323, ref flags aren't set for references in the same | |
913 | object. */ | |
bc4e12de | 914 | h->root.non_ir_ref_regular = 1; |
973a3492 | 915 | } |
a85d7ed0 | 916 | |
5236c819 MS |
917 | /* Create got section and local_got_refcounts array if they |
918 | are needed. */ | |
69fc87f1 MS |
919 | r_type = elf_s390_tls_transition (info, |
920 | ELF64_R_TYPE (rel->r_info), | |
921 | h == NULL); | |
922 | switch (r_type) | |
a85d7ed0 NC |
923 | { |
924 | case R_390_GOT12: | |
947216bf | 925 | case R_390_GOT16: |
bd1ea41b | 926 | case R_390_GOT20: |
a85d7ed0 NC |
927 | case R_390_GOT32: |
928 | case R_390_GOT64: | |
929 | case R_390_GOTENT: | |
5236c819 MS |
930 | case R_390_GOTPLT12: |
931 | case R_390_GOTPLT16: | |
bd1ea41b | 932 | case R_390_GOTPLT20: |
5236c819 MS |
933 | case R_390_GOTPLT32: |
934 | case R_390_GOTPLT64: | |
935 | case R_390_GOTPLTENT: | |
69fc87f1 MS |
936 | case R_390_TLS_GD64: |
937 | case R_390_TLS_GOTIE12: | |
bd1ea41b | 938 | case R_390_TLS_GOTIE20: |
69fc87f1 MS |
939 | case R_390_TLS_GOTIE64: |
940 | case R_390_TLS_IEENT: | |
941 | case R_390_TLS_IE64: | |
942 | case R_390_TLS_LDM64: | |
5236c819 MS |
943 | if (h == NULL |
944 | && local_got_refcounts == NULL) | |
a85d7ed0 | 945 | { |
470b557a | 946 | if (!elf_s390_allocate_local_syminfo (abfd, symtab_hdr)) |
5236c819 | 947 | return FALSE; |
470b557a | 948 | local_got_refcounts = elf_local_got_refcounts (abfd); |
a85d7ed0 | 949 | } |
470b557a | 950 | |
5236c819 MS |
951 | /* Fall through. */ |
952 | case R_390_GOTOFF16: | |
953 | case R_390_GOTOFF32: | |
954 | case R_390_GOTOFF64: | |
0451c93c MS |
955 | case R_390_GOTPC: |
956 | case R_390_GOTPCDBL: | |
f41345a7 | 957 | if (htab->elf.sgot == NULL) |
0451c93c MS |
958 | { |
959 | if (htab->elf.dynobj == NULL) | |
960 | htab->elf.dynobj = abfd; | |
ce558b89 | 961 | if (!_bfd_elf_create_got_section (htab->elf.dynobj, info)) |
b34976b6 | 962 | return FALSE; |
0451c93c | 963 | } |
5236c819 MS |
964 | } |
965 | ||
470b557a AK |
966 | if (h != NULL) |
967 | { | |
968 | if (htab->elf.dynobj == NULL) | |
969 | htab->elf.dynobj = abfd; | |
970 | if (!s390_elf_create_ifunc_sections (htab->elf.dynobj, info)) | |
971 | return FALSE; | |
972 | ||
973 | /* Make sure an IFUNC symbol defined in a non-shared object | |
974 | always gets a PLT slot. */ | |
975 | if (s390_is_ifunc_symbol_p (h) && h->def_regular) | |
976 | { | |
977 | /* The symbol is called by the dynamic loader in order | |
978 | to resolve the relocation. So it is in fact also | |
979 | referenced. */ | |
980 | h->ref_regular = 1; | |
981 | h->needs_plt = 1; | |
982 | } | |
983 | } | |
984 | ||
69fc87f1 | 985 | switch (r_type) |
5236c819 | 986 | { |
5236c819 MS |
987 | case R_390_GOTPC: |
988 | case R_390_GOTPCDBL: | |
470b557a AK |
989 | /* These relocs do not need a GOT slot. They just load the |
990 | GOT pointer itself or address something else relative to | |
991 | the GOT. Since the GOT pointer has been set up above we | |
992 | are done. */ | |
0451c93c | 993 | break; |
d47b13e0 AK |
994 | case R_390_GOTOFF16: |
995 | case R_390_GOTOFF32: | |
996 | case R_390_GOTOFF64: | |
997 | if (h == NULL || !s390_is_ifunc_symbol_p (h) || !h->def_regular) | |
998 | break; | |
1a0670f3 | 999 | /* Fall through. */ |
ec338859 | 1000 | |
fb798c50 | 1001 | case R_390_PLT12DBL: |
947216bf | 1002 | case R_390_PLT16DBL: |
fb798c50 | 1003 | case R_390_PLT24DBL: |
a85d7ed0 NC |
1004 | case R_390_PLT32: |
1005 | case R_390_PLT32DBL: | |
1006 | case R_390_PLT64: | |
5236c819 MS |
1007 | case R_390_PLTOFF16: |
1008 | case R_390_PLTOFF32: | |
1009 | case R_390_PLTOFF64: | |
a85d7ed0 | 1010 | /* This symbol requires a procedure linkage table entry. We |
947216bf AM |
1011 | actually build the entry in adjust_dynamic_symbol, |
1012 | because this might be a case of linking PIC code which is | |
1013 | never referenced by a dynamic object, in which case we | |
1014 | don't need to generate a procedure linkage table entry | |
1015 | after all. */ | |
ec338859 | 1016 | |
a85d7ed0 | 1017 | /* If this is a local symbol, we resolve it directly without |
947216bf | 1018 | creating a procedure linkage table entry. */ |
5236c819 MS |
1019 | if (h != NULL) |
1020 | { | |
f5385ebf | 1021 | h->needs_plt = 1; |
5236c819 MS |
1022 | h->plt.refcount += 1; |
1023 | } | |
1024 | break; | |
ec338859 | 1025 | |
5236c819 MS |
1026 | case R_390_GOTPLT12: |
1027 | case R_390_GOTPLT16: | |
bd1ea41b | 1028 | case R_390_GOTPLT20: |
5236c819 MS |
1029 | case R_390_GOTPLT32: |
1030 | case R_390_GOTPLT64: | |
1031 | case R_390_GOTPLTENT: | |
1032 | /* This symbol requires either a procedure linkage table entry | |
1033 | or an entry in the local got. We actually build the entry | |
1034 | in adjust_dynamic_symbol because whether this is really a | |
1035 | global reference can change and with it the fact if we have | |
1036 | to create a plt entry or a local got entry. To be able to | |
1037 | make a once global symbol a local one we have to keep track | |
1038 | of the number of gotplt references that exist for this | |
1039 | symbol. */ | |
1040 | if (h != NULL) | |
1041 | { | |
1042 | ((struct elf_s390_link_hash_entry *) h)->gotplt_refcount++; | |
f5385ebf | 1043 | h->needs_plt = 1; |
5236c819 MS |
1044 | h->plt.refcount += 1; |
1045 | } | |
69fc87f1 MS |
1046 | else |
1047 | local_got_refcounts[r_symndx] += 1; | |
1048 | break; | |
1049 | ||
1050 | case R_390_TLS_LDM64: | |
1051 | htab->tls_ldm_got.refcount += 1; | |
1052 | break; | |
1053 | ||
1054 | case R_390_TLS_IE64: | |
1055 | case R_390_TLS_GOTIE12: | |
bd1ea41b | 1056 | case R_390_TLS_GOTIE20: |
69fc87f1 MS |
1057 | case R_390_TLS_GOTIE64: |
1058 | case R_390_TLS_IEENT: | |
0e1862bb | 1059 | if (bfd_link_pic (info)) |
69fc87f1 MS |
1060 | info->flags |= DF_STATIC_TLS; |
1061 | /* Fall through */ | |
1062 | ||
1063 | case R_390_GOT12: | |
26e41594 | 1064 | case R_390_GOT16: |
bd1ea41b | 1065 | case R_390_GOT20: |
69fc87f1 MS |
1066 | case R_390_GOT32: |
1067 | case R_390_GOT64: | |
1068 | case R_390_GOTENT: | |
1069 | case R_390_TLS_GD64: | |
1070 | /* This symbol requires a global offset table entry. */ | |
1071 | switch (r_type) | |
1072 | { | |
1073 | default: | |
1074 | case R_390_GOT12: | |
1075 | case R_390_GOT16: | |
bd1ea41b | 1076 | case R_390_GOT20: |
69fc87f1 MS |
1077 | case R_390_GOT32: |
1078 | case R_390_GOTENT: | |
1079 | tls_type = GOT_NORMAL; | |
1080 | break; | |
1081 | case R_390_TLS_GD64: | |
1082 | tls_type = GOT_TLS_GD; | |
1083 | break; | |
1084 | case R_390_TLS_IE64: | |
1085 | case R_390_TLS_GOTIE64: | |
1086 | tls_type = GOT_TLS_IE; | |
1087 | break; | |
1088 | case R_390_TLS_GOTIE12: | |
bd1ea41b | 1089 | case R_390_TLS_GOTIE20: |
69fc87f1 MS |
1090 | case R_390_TLS_IEENT: |
1091 | tls_type = GOT_TLS_IE_NLT; | |
1092 | break; | |
1093 | } | |
1094 | ||
1095 | if (h != NULL) | |
1096 | { | |
1097 | h->got.refcount += 1; | |
1098 | old_tls_type = elf_s390_hash_entry(h)->tls_type; | |
1099 | } | |
5236c819 MS |
1100 | else |
1101 | { | |
1102 | local_got_refcounts[r_symndx] += 1; | |
69fc87f1 | 1103 | old_tls_type = elf_s390_local_got_tls_type (abfd) [r_symndx]; |
5236c819 | 1104 | } |
69fc87f1 MS |
1105 | /* If a TLS symbol is accessed using IE at least once, |
1106 | there is no point to use dynamic model for it. */ | |
1107 | if (old_tls_type != tls_type && old_tls_type != GOT_UNKNOWN) | |
1108 | { | |
1109 | if (old_tls_type == GOT_NORMAL || tls_type == GOT_NORMAL) | |
1110 | { | |
4eca0228 | 1111 | _bfd_error_handler |
695344c0 | 1112 | /* xgettext:c-format */ |
d003868e AM |
1113 | (_("%B: `%s' accessed both as normal and thread local symbol"), |
1114 | abfd, h->root.root.string); | |
69fc87f1 MS |
1115 | return FALSE; |
1116 | } | |
1117 | if (old_tls_type > tls_type) | |
1118 | tls_type = old_tls_type; | |
1119 | } | |
1120 | ||
1121 | if (old_tls_type != tls_type) | |
1122 | { | |
1123 | if (h != NULL) | |
1124 | elf_s390_hash_entry (h)->tls_type = tls_type; | |
1125 | else | |
1126 | elf_s390_local_got_tls_type (abfd) [r_symndx] = tls_type; | |
1127 | } | |
1128 | ||
1129 | if (r_type != R_390_TLS_IE64) | |
1130 | break; | |
1131 | /* Fall through */ | |
1132 | ||
1133 | case R_390_TLS_LE64: | |
e00d879a AK |
1134 | /* For static linking and executables this reloc will be |
1135 | calculated at linktime otherwise a TLS_TPOFF runtime | |
1136 | reloc will be generated. */ | |
0e1862bb | 1137 | if (r_type == R_390_TLS_LE64 && bfd_link_pie (info)) |
e00d879a AK |
1138 | break; |
1139 | ||
0e1862bb | 1140 | if (!bfd_link_pic (info)) |
69fc87f1 MS |
1141 | break; |
1142 | info->flags |= DF_STATIC_TLS; | |
1143 | /* Fall through */ | |
ec338859 | 1144 | |
947216bf AM |
1145 | case R_390_8: |
1146 | case R_390_16: | |
a85d7ed0 NC |
1147 | case R_390_32: |
1148 | case R_390_64: | |
fb798c50 | 1149 | case R_390_PC12DBL: |
947216bf AM |
1150 | case R_390_PC16: |
1151 | case R_390_PC16DBL: | |
fb798c50 | 1152 | case R_390_PC24DBL: |
a85d7ed0 NC |
1153 | case R_390_PC32: |
1154 | case R_390_PC32DBL: | |
1155 | case R_390_PC64: | |
99ba5125 | 1156 | if (h != NULL && bfd_link_executable (info)) |
0451c93c MS |
1157 | { |
1158 | /* If this reloc is in a read-only section, we might | |
1159 | need a copy reloc. We can't check reliably at this | |
1160 | stage whether the section is read-only, as input | |
1161 | sections have not yet been mapped to output sections. | |
1162 | Tentatively set the flag for now, and correct in | |
1163 | adjust_dynamic_symbol. */ | |
f5385ebf | 1164 | h->non_got_ref = 1; |
ec338859 | 1165 | |
0e1862bb | 1166 | if (!bfd_link_pic (info)) |
470b557a AK |
1167 | { |
1168 | /* We may need a .plt entry if the function this reloc | |
1169 | refers to is in a shared lib. */ | |
1170 | h->plt.refcount += 1; | |
1171 | } | |
0451c93c | 1172 | } |
ec338859 | 1173 | |
a85d7ed0 | 1174 | /* If we are creating a shared library, and this is a reloc |
0451c93c MS |
1175 | against a global symbol, or a non PC relative reloc |
1176 | against a local symbol, then we need to copy the reloc | |
1177 | into the shared library. However, if we are linking with | |
1178 | -Bsymbolic, we do not need to copy a reloc against a | |
1179 | global symbol which is defined in an object we are | |
1180 | including in the link (i.e., DEF_REGULAR is set). At | |
1181 | this point we have not seen all the input files, so it is | |
1182 | possible that DEF_REGULAR is not set now but will be set | |
1183 | later (it is never cleared). In case of a weak definition, | |
1184 | DEF_REGULAR may be cleared later by a strong definition in | |
1185 | a shared library. We account for that possibility below by | |
1186 | storing information in the relocs_copied field of the hash | |
1187 | table entry. A similar situation occurs when creating | |
1188 | shared libraries and symbol visibility changes render the | |
1189 | symbol local. | |
1190 | ||
1191 | If on the other hand, we are creating an executable, we | |
1192 | may need to keep relocations for symbols satisfied by a | |
1193 | dynamic library if we manage to avoid copy relocs for the | |
1194 | symbol. */ | |
0e1862bb | 1195 | if ((bfd_link_pic (info) |
0451c93c MS |
1196 | && (sec->flags & SEC_ALLOC) != 0 |
1197 | && ((ELF64_R_TYPE (rel->r_info) != R_390_PC16 | |
fb798c50 | 1198 | && ELF64_R_TYPE (rel->r_info) != R_390_PC12DBL |
0451c93c | 1199 | && ELF64_R_TYPE (rel->r_info) != R_390_PC16DBL |
fb798c50 | 1200 | && ELF64_R_TYPE (rel->r_info) != R_390_PC24DBL |
0451c93c MS |
1201 | && ELF64_R_TYPE (rel->r_info) != R_390_PC32 |
1202 | && ELF64_R_TYPE (rel->r_info) != R_390_PC32DBL | |
1203 | && ELF64_R_TYPE (rel->r_info) != R_390_PC64) | |
1204 | || (h != NULL | |
8c21ca21 | 1205 | && (! SYMBOLIC_BIND (info, h) |
0451c93c | 1206 | || h->root.type == bfd_link_hash_defweak |
f5385ebf | 1207 | || !h->def_regular)))) |
64285810 | 1208 | || (ELIMINATE_COPY_RELOCS |
0e1862bb | 1209 | && !bfd_link_pic (info) |
0451c93c MS |
1210 | && (sec->flags & SEC_ALLOC) != 0 |
1211 | && h != NULL | |
1212 | && (h->root.type == bfd_link_hash_defweak | |
f5385ebf | 1213 | || !h->def_regular))) |
a85d7ed0 | 1214 | { |
00d8c7a9 AK |
1215 | struct elf_dyn_relocs *p; |
1216 | struct elf_dyn_relocs **head; | |
ec338859 | 1217 | |
0451c93c MS |
1218 | /* We must copy these reloc types into the output file. |
1219 | Create a reloc section in dynobj and make room for | |
1220 | this reloc. */ | |
a85d7ed0 NC |
1221 | if (sreloc == NULL) |
1222 | { | |
440e9cd2 AK |
1223 | if (htab->elf.dynobj == NULL) |
1224 | htab->elf.dynobj = abfd; | |
1225 | ||
83bac4b0 NC |
1226 | sreloc = _bfd_elf_make_dynamic_reloc_section |
1227 | (sec, htab->elf.dynobj, 3, abfd, /*rela?*/ TRUE); | |
ec338859 | 1228 | |
a85d7ed0 | 1229 | if (sreloc == NULL) |
83bac4b0 | 1230 | return FALSE; |
a85d7ed0 | 1231 | } |
ec338859 | 1232 | |
0451c93c MS |
1233 | /* If this is a global symbol, we count the number of |
1234 | relocations we need for this symbol. */ | |
1235 | if (h != NULL) | |
a85d7ed0 | 1236 | { |
ec338859 | 1237 | head = &((struct elf_s390_link_hash_entry *) h)->dyn_relocs; |
0451c93c MS |
1238 | } |
1239 | else | |
1240 | { | |
ec338859 AM |
1241 | /* Track dynamic relocs needed for local syms too. |
1242 | We really need local syms available to do this | |
1243 | easily. Oh well. */ | |
ec338859 | 1244 | asection *s; |
6edfbbad DJ |
1245 | void *vpp; |
1246 | ||
87d72d41 AM |
1247 | isym = bfd_sym_from_r_symndx (&htab->sym_cache, |
1248 | abfd, r_symndx); | |
1249 | if (isym == NULL) | |
b34976b6 | 1250 | return FALSE; |
ec338859 | 1251 | |
87d72d41 AM |
1252 | s = bfd_section_from_elf_index (abfd, isym->st_shndx); |
1253 | if (s == NULL) | |
1254 | s = sec; | |
1255 | ||
6edfbbad | 1256 | vpp = &elf_section_data (s)->local_dynrel; |
00d8c7a9 | 1257 | head = (struct elf_dyn_relocs **) vpp; |
ec338859 AM |
1258 | } |
1259 | ||
1260 | p = *head; | |
1261 | if (p == NULL || p->sec != sec) | |
1262 | { | |
1263 | bfd_size_type amt = sizeof *p; | |
00d8c7a9 | 1264 | p = ((struct elf_dyn_relocs *) |
ec338859 AM |
1265 | bfd_alloc (htab->elf.dynobj, amt)); |
1266 | if (p == NULL) | |
b34976b6 | 1267 | return FALSE; |
ec338859 AM |
1268 | p->next = *head; |
1269 | *head = p; | |
1270 | p->sec = sec; | |
1271 | p->count = 0; | |
1272 | p->pc_count = 0; | |
a85d7ed0 | 1273 | } |
ec338859 AM |
1274 | |
1275 | p->count += 1; | |
1276 | if (ELF64_R_TYPE (rel->r_info) == R_390_PC16 | |
fb798c50 AK |
1277 | || ELF64_R_TYPE (rel->r_info) == R_390_PC12DBL |
1278 | || ELF64_R_TYPE (rel->r_info) == R_390_PC16DBL | |
ec338859 AM |
1279 | || ELF64_R_TYPE (rel->r_info) == R_390_PC16DBL |
1280 | || ELF64_R_TYPE (rel->r_info) == R_390_PC32 | |
1281 | || ELF64_R_TYPE (rel->r_info) == R_390_PC32DBL | |
1282 | || ELF64_R_TYPE (rel->r_info) == R_390_PC64) | |
1283 | p->pc_count += 1; | |
a85d7ed0 | 1284 | } |
a85d7ed0 | 1285 | break; |
ec338859 | 1286 | |
a85d7ed0 NC |
1287 | /* This relocation describes the C++ object vtable hierarchy. |
1288 | Reconstruct it for later use during GC. */ | |
947216bf | 1289 | case R_390_GNU_VTINHERIT: |
c152c796 | 1290 | if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset)) |
b34976b6 | 1291 | return FALSE; |
947216bf | 1292 | break; |
ec338859 | 1293 | |
a85d7ed0 NC |
1294 | /* This relocation describes which C++ vtable entries are actually |
1295 | used. Record for later use during GC. */ | |
947216bf | 1296 | case R_390_GNU_VTENTRY: |
d17e0c6e JB |
1297 | BFD_ASSERT (h != NULL); |
1298 | if (h != NULL | |
1299 | && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend)) | |
b34976b6 | 1300 | return FALSE; |
947216bf | 1301 | break; |
ec338859 | 1302 | |
a85d7ed0 NC |
1303 | default: |
1304 | break; | |
1305 | } | |
1306 | } | |
1307 | ||
b34976b6 | 1308 | return TRUE; |
a85d7ed0 NC |
1309 | } |
1310 | ||
1311 | /* Return the section that should be marked against GC for a given | |
1312 | relocation. */ | |
1313 | ||
1314 | static asection * | |
07adf181 AM |
1315 | elf_s390_gc_mark_hook (asection *sec, |
1316 | struct bfd_link_info *info, | |
1317 | Elf_Internal_Rela *rel, | |
1318 | struct elf_link_hash_entry *h, | |
1319 | Elf_Internal_Sym *sym) | |
a85d7ed0 NC |
1320 | { |
1321 | if (h != NULL) | |
07adf181 AM |
1322 | switch (ELF64_R_TYPE (rel->r_info)) |
1323 | { | |
1324 | case R_390_GNU_VTINHERIT: | |
1325 | case R_390_GNU_VTENTRY: | |
1326 | return NULL; | |
1327 | } | |
1328 | ||
1329 | return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym); | |
a85d7ed0 NC |
1330 | } |
1331 | ||
1332 | /* Update the got entry reference counts for the section being removed. */ | |
1333 | ||
b34976b6 | 1334 | static bfd_boolean |
07adf181 AM |
1335 | elf_s390_gc_sweep_hook (bfd *abfd, |
1336 | struct bfd_link_info *info, | |
1337 | asection *sec, | |
1338 | const Elf_Internal_Rela *relocs) | |
a85d7ed0 | 1339 | { |
4dfe6ac6 | 1340 | struct elf_s390_link_hash_table *htab; |
a85d7ed0 NC |
1341 | Elf_Internal_Shdr *symtab_hdr; |
1342 | struct elf_link_hash_entry **sym_hashes; | |
1343 | bfd_signed_vma *local_got_refcounts; | |
1344 | const Elf_Internal_Rela *rel, *relend; | |
a85d7ed0 | 1345 | |
0e1862bb | 1346 | if (bfd_link_relocatable (info)) |
7dda2462 TG |
1347 | return TRUE; |
1348 | ||
4dfe6ac6 NC |
1349 | htab = elf_s390_hash_table (info); |
1350 | if (htab == NULL) | |
1351 | return FALSE; | |
1352 | ||
ec338859 | 1353 | elf_section_data (sec)->local_dynrel = NULL; |
a85d7ed0 | 1354 | |
0ffa91dd | 1355 | symtab_hdr = &elf_symtab_hdr (abfd); |
0451c93c MS |
1356 | sym_hashes = elf_sym_hashes (abfd); |
1357 | local_got_refcounts = elf_local_got_refcounts (abfd); | |
a85d7ed0 NC |
1358 | |
1359 | relend = relocs + sec->reloc_count; | |
1360 | for (rel = relocs; rel < relend; rel++) | |
5236c819 | 1361 | { |
26e41594 AM |
1362 | unsigned long r_symndx; |
1363 | unsigned int r_type; | |
1364 | struct elf_link_hash_entry *h = NULL; | |
1365 | ||
5236c819 | 1366 | r_symndx = ELF64_R_SYM (rel->r_info); |
26e41594 AM |
1367 | if (r_symndx >= symtab_hdr->sh_info) |
1368 | { | |
1369 | struct elf_s390_link_hash_entry *eh; | |
00d8c7a9 AK |
1370 | struct elf_dyn_relocs **pp; |
1371 | struct elf_dyn_relocs *p; | |
5236c819 | 1372 | |
26e41594 | 1373 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; |
3eb128b2 AM |
1374 | while (h->root.type == bfd_link_hash_indirect |
1375 | || h->root.type == bfd_link_hash_warning) | |
1376 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
26e41594 | 1377 | eh = (struct elf_s390_link_hash_entry *) h; |
5236c819 | 1378 | |
26e41594 AM |
1379 | for (pp = &eh->dyn_relocs; (p = *pp) != NULL; pp = &p->next) |
1380 | if (p->sec == sec) | |
1381 | { | |
1382 | /* Everything must go for SEC. */ | |
1383 | *pp = p->next; | |
1384 | break; | |
1385 | } | |
1386 | } | |
470b557a AK |
1387 | else |
1388 | { | |
1389 | Elf_Internal_Sym *isym; | |
1390 | ||
1391 | /* A local symbol. */ | |
1392 | isym = bfd_sym_from_r_symndx (&htab->sym_cache, | |
1393 | abfd, r_symndx); | |
1394 | if (isym == NULL) | |
1395 | return FALSE; | |
1396 | ||
1397 | if (ELF_ST_TYPE (isym->st_info) == STT_GNU_IFUNC) | |
1398 | { | |
1399 | struct plt_entry *plt = elf_s390_local_plt (abfd); | |
1400 | if (plt[r_symndx].plt.refcount > 0) | |
1401 | plt[r_symndx].plt.refcount--; | |
1402 | } | |
1403 | } | |
26e41594 AM |
1404 | |
1405 | r_type = ELF64_R_TYPE (rel->r_info); | |
1406 | r_type = elf_s390_tls_transition (info, r_type, h != NULL); | |
69fc87f1 | 1407 | switch (r_type) |
5236c819 | 1408 | { |
69fc87f1 | 1409 | case R_390_TLS_LDM64: |
4dfe6ac6 NC |
1410 | if (htab->tls_ldm_got.refcount > 0) |
1411 | htab->tls_ldm_got.refcount -= 1; | |
69fc87f1 | 1412 | break; |
ef05be83 AK |
1413 | case R_390_GOTOFF16: |
1414 | case R_390_GOTOFF32: | |
1415 | case R_390_GOTOFF64: | |
d47b13e0 AK |
1416 | if (h != NULL && s390_is_ifunc_symbol_p (h) && h->def_regular) |
1417 | { | |
1418 | h->plt.refcount--; | |
1419 | break; | |
1420 | } | |
1421 | ||
ef05be83 AK |
1422 | case R_390_GOTPC: |
1423 | case R_390_GOTPCDBL: | |
1424 | break; | |
69fc87f1 MS |
1425 | |
1426 | case R_390_TLS_GD64: | |
1427 | case R_390_TLS_IE64: | |
1428 | case R_390_TLS_GOTIE12: | |
bd1ea41b | 1429 | case R_390_TLS_GOTIE20: |
69fc87f1 MS |
1430 | case R_390_TLS_GOTIE64: |
1431 | case R_390_TLS_IEENT: | |
5236c819 MS |
1432 | case R_390_GOT12: |
1433 | case R_390_GOT16: | |
bd1ea41b | 1434 | case R_390_GOT20: |
5236c819 MS |
1435 | case R_390_GOT32: |
1436 | case R_390_GOT64: | |
5236c819 MS |
1437 | case R_390_GOTENT: |
1438 | if (h != NULL) | |
1439 | { | |
1440 | if (h->got.refcount > 0) | |
1441 | h->got.refcount -= 1; | |
1442 | } | |
1443 | else if (local_got_refcounts != NULL) | |
1444 | { | |
1445 | if (local_got_refcounts[r_symndx] > 0) | |
1446 | local_got_refcounts[r_symndx] -= 1; | |
1447 | } | |
26e41594 | 1448 | break; |
a85d7ed0 | 1449 | |
5236c819 MS |
1450 | case R_390_8: |
1451 | case R_390_12: | |
1452 | case R_390_16: | |
bd1ea41b | 1453 | case R_390_20: |
5236c819 MS |
1454 | case R_390_32: |
1455 | case R_390_64: | |
1456 | case R_390_PC16: | |
fb798c50 | 1457 | case R_390_PC12DBL: |
5236c819 | 1458 | case R_390_PC16DBL: |
fb798c50 | 1459 | case R_390_PC24DBL: |
5236c819 MS |
1460 | case R_390_PC32: |
1461 | case R_390_PC32DBL: | |
1462 | case R_390_PC64: | |
0e1862bb | 1463 | if (bfd_link_pic (info)) |
26e41594 AM |
1464 | break; |
1465 | /* Fall through */ | |
a85d7ed0 | 1466 | |
fb798c50 | 1467 | case R_390_PLT12DBL: |
69fc87f1 | 1468 | case R_390_PLT16DBL: |
fb798c50 | 1469 | case R_390_PLT24DBL: |
69fc87f1 MS |
1470 | case R_390_PLT32: |
1471 | case R_390_PLT32DBL: | |
1472 | case R_390_PLT64: | |
1473 | case R_390_PLTOFF16: | |
1474 | case R_390_PLTOFF32: | |
1475 | case R_390_PLTOFF64: | |
1476 | if (h != NULL) | |
1477 | { | |
1478 | if (h->plt.refcount > 0) | |
1479 | h->plt.refcount -= 1; | |
1480 | } | |
1481 | break; | |
1482 | ||
1483 | case R_390_GOTPLT12: | |
1484 | case R_390_GOTPLT16: | |
bd1ea41b | 1485 | case R_390_GOTPLT20: |
69fc87f1 MS |
1486 | case R_390_GOTPLT32: |
1487 | case R_390_GOTPLT64: | |
1488 | case R_390_GOTPLTENT: | |
1489 | if (h != NULL) | |
1490 | { | |
1491 | if (h->plt.refcount > 0) | |
1492 | { | |
1493 | ((struct elf_s390_link_hash_entry *) h)->gotplt_refcount--; | |
1494 | h->plt.refcount -= 1; | |
1495 | } | |
1496 | } | |
1497 | else if (local_got_refcounts != NULL) | |
1498 | { | |
1499 | if (local_got_refcounts[r_symndx] > 0) | |
1500 | local_got_refcounts[r_symndx] -= 1; | |
1501 | } | |
1502 | break; | |
1503 | ||
5236c819 MS |
1504 | default: |
1505 | break; | |
1506 | } | |
1507 | } | |
a85d7ed0 | 1508 | |
b34976b6 | 1509 | return TRUE; |
a85d7ed0 NC |
1510 | } |
1511 | ||
5236c819 MS |
1512 | /* Make sure we emit a GOT entry if the symbol was supposed to have a PLT |
1513 | entry but we found we will not create any. Called when we find we will | |
1514 | not have any PLT for this symbol, by for example | |
1515 | elf_s390_adjust_dynamic_symbol when we're doing a proper dynamic link, | |
1516 | or elf_s390_size_dynamic_sections if no dynamic sections will be | |
1517 | created (we're only linking static objects). */ | |
1518 | ||
1519 | static void | |
2c3fc389 | 1520 | elf_s390_adjust_gotplt (struct elf_s390_link_hash_entry *h) |
5236c819 MS |
1521 | { |
1522 | if (h->elf.root.type == bfd_link_hash_warning) | |
1523 | h = (struct elf_s390_link_hash_entry *) h->elf.root.u.i.link; | |
1524 | ||
1525 | if (h->gotplt_refcount <= 0) | |
1526 | return; | |
1527 | ||
1528 | /* We simply add the number of gotplt references to the number | |
1529 | * of got references for this symbol. */ | |
1530 | h->elf.got.refcount += h->gotplt_refcount; | |
1531 | h->gotplt_refcount = -1; | |
1532 | } | |
1533 | ||
a85d7ed0 NC |
1534 | /* Adjust a symbol defined by a dynamic object and referenced by a |
1535 | regular object. The current definition is in some section of the | |
1536 | dynamic object, but we're not including those sections. We have to | |
1537 | change the definition to something the rest of the link can | |
1538 | understand. */ | |
1539 | ||
b34976b6 | 1540 | static bfd_boolean |
4dfe6ac6 NC |
1541 | elf_s390_adjust_dynamic_symbol (struct bfd_link_info *info, |
1542 | struct elf_link_hash_entry *h) | |
a85d7ed0 | 1543 | { |
0451c93c | 1544 | struct elf_s390_link_hash_table *htab; |
5474d94f | 1545 | asection *s, *srel; |
a85d7ed0 | 1546 | |
470b557a AK |
1547 | /* STT_GNU_IFUNC symbol must go through PLT. */ |
1548 | if (s390_is_ifunc_symbol_p (h)) | |
d8ee9e44 AK |
1549 | { |
1550 | /* All local STT_GNU_IFUNC references must be treated as local | |
1551 | calls via local PLT. */ | |
1552 | if (h->ref_regular && SYMBOL_CALLS_LOCAL (info, h)) | |
1553 | { | |
1554 | bfd_size_type pc_count = 0, count = 0; | |
1555 | struct elf_dyn_relocs **pp; | |
1556 | struct elf_s390_link_hash_entry *eh; | |
1557 | struct elf_dyn_relocs *p; | |
1558 | ||
1559 | eh = (struct elf_s390_link_hash_entry *) h; | |
1560 | for (pp = &eh->dyn_relocs; (p = *pp) != NULL; ) | |
1561 | { | |
1562 | pc_count += p->pc_count; | |
1563 | p->count -= p->pc_count; | |
1564 | p->pc_count = 0; | |
1565 | count += p->count; | |
1566 | if (p->count == 0) | |
1567 | *pp = p->next; | |
1568 | else | |
1569 | pp = &p->next; | |
1570 | } | |
1571 | ||
1572 | if (pc_count || count) | |
1573 | { | |
1574 | h->needs_plt = 1; | |
1575 | h->non_got_ref = 1; | |
1576 | if (h->plt.refcount <= 0) | |
1577 | h->plt.refcount = 1; | |
1578 | else | |
1579 | h->plt.refcount += 1; | |
1580 | } | |
1581 | } | |
1582 | ||
1583 | if (h->plt.refcount <= 0) | |
1584 | { | |
1585 | h->plt.offset = (bfd_vma) -1; | |
1586 | h->needs_plt = 0; | |
1587 | } | |
1588 | return TRUE; | |
1589 | } | |
470b557a | 1590 | |
a85d7ed0 NC |
1591 | /* If this is a function, put it in the procedure linkage table. We |
1592 | will fill in the contents of the procedure linkage table later | |
cedb70c5 | 1593 | (although we could actually do it here). */ |
a85d7ed0 | 1594 | if (h->type == STT_FUNC |
f5385ebf | 1595 | || h->needs_plt) |
a85d7ed0 | 1596 | { |
0451c93c | 1597 | if (h->plt.refcount <= 0 |
8c21ca21 AK |
1598 | || SYMBOL_CALLS_LOCAL (info, h) |
1599 | || (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT | |
1600 | && h->root.type == bfd_link_hash_undefweak)) | |
a85d7ed0 NC |
1601 | { |
1602 | /* This case can occur if we saw a PLT32 reloc in an input | |
947216bf AM |
1603 | file, but the symbol was never referred to by a dynamic |
1604 | object, or if all references were garbage collected. In | |
0451c93c MS |
1605 | such a case, we don't actually need to build a procedure |
1606 | linkage table, and we can just do a PC32 reloc instead. */ | |
a85d7ed0 | 1607 | h->plt.offset = (bfd_vma) -1; |
f5385ebf | 1608 | h->needs_plt = 0; |
5236c819 | 1609 | elf_s390_adjust_gotplt((struct elf_s390_link_hash_entry *) h); |
a85d7ed0 NC |
1610 | } |
1611 | ||
b34976b6 | 1612 | return TRUE; |
a85d7ed0 | 1613 | } |
bbd7ec4a | 1614 | else |
0451c93c MS |
1615 | /* It's possible that we incorrectly decided a .plt reloc was |
1616 | needed for an R_390_PC32 reloc to a non-function sym in | |
1617 | check_relocs. We can't decide accurately between function and | |
1618 | non-function syms in check-relocs; Objects loaded later in | |
1619 | the link may change h->type. So fix it now. */ | |
bbd7ec4a | 1620 | h->plt.offset = (bfd_vma) -1; |
a85d7ed0 NC |
1621 | |
1622 | /* If this is a weak symbol, and there is a real definition, the | |
1623 | processor independent code will have arranged for us to see the | |
1624 | real definition first, and we can just use the same value. */ | |
f6e332e6 | 1625 | if (h->u.weakdef != NULL) |
a85d7ed0 | 1626 | { |
f6e332e6 AM |
1627 | BFD_ASSERT (h->u.weakdef->root.type == bfd_link_hash_defined |
1628 | || h->u.weakdef->root.type == bfd_link_hash_defweak); | |
1629 | h->root.u.def.section = h->u.weakdef->root.u.def.section; | |
1630 | h->root.u.def.value = h->u.weakdef->root.u.def.value; | |
64285810 | 1631 | if (ELIMINATE_COPY_RELOCS || info->nocopyreloc) |
f6e332e6 | 1632 | h->non_got_ref = h->u.weakdef->non_got_ref; |
b34976b6 | 1633 | return TRUE; |
a85d7ed0 NC |
1634 | } |
1635 | ||
1636 | /* This is a reference to a symbol defined by a dynamic object which | |
1637 | is not a function. */ | |
1638 | ||
1639 | /* If we are creating a shared library, we must presume that the | |
1640 | only references to the symbol are via the global offset table. | |
1641 | For such cases we need not do anything here; the relocations will | |
1642 | be handled correctly by relocate_section. */ | |
0e1862bb | 1643 | if (bfd_link_pic (info)) |
b34976b6 | 1644 | return TRUE; |
a85d7ed0 NC |
1645 | |
1646 | /* If there are no references to this symbol that do not use the | |
1647 | GOT, we don't need to generate a copy reloc. */ | |
f5385ebf | 1648 | if (!h->non_got_ref) |
b34976b6 | 1649 | return TRUE; |
a85d7ed0 | 1650 | |
0451c93c MS |
1651 | /* If -z nocopyreloc was given, we won't generate them either. */ |
1652 | if (info->nocopyreloc) | |
1653 | { | |
f5385ebf | 1654 | h->non_got_ref = 0; |
b34976b6 | 1655 | return TRUE; |
0451c93c MS |
1656 | } |
1657 | ||
64285810 | 1658 | if (ELIMINATE_COPY_RELOCS) |
0451c93c | 1659 | { |
64285810 | 1660 | struct elf_s390_link_hash_entry * eh; |
00d8c7a9 | 1661 | struct elf_dyn_relocs *p; |
0451c93c | 1662 | |
64285810 MS |
1663 | eh = (struct elf_s390_link_hash_entry *) h; |
1664 | for (p = eh->dyn_relocs; p != NULL; p = p->next) | |
1665 | { | |
1666 | s = p->sec->output_section; | |
1667 | if (s != NULL && (s->flags & SEC_READONLY) != 0) | |
1668 | break; | |
1669 | } | |
1670 | ||
1671 | /* If we didn't find any dynamic relocs in read-only sections, then | |
1672 | we'll be keeping the dynamic relocs and avoiding the copy reloc. */ | |
1673 | if (p == NULL) | |
1674 | { | |
f5385ebf | 1675 | h->non_got_ref = 0; |
64285810 MS |
1676 | return TRUE; |
1677 | } | |
0451c93c MS |
1678 | } |
1679 | ||
a85d7ed0 NC |
1680 | /* We must allocate the symbol in our .dynbss section, which will |
1681 | become part of the .bss section of the executable. There will be | |
1682 | an entry for this symbol in the .dynsym section. The dynamic | |
1683 | object will contain position independent code, so all references | |
1684 | from the dynamic object to this symbol will go through the global | |
1685 | offset table. The dynamic linker will use the .dynsym entry to | |
1686 | determine the address it must put in the global offset table, so | |
1687 | both the dynamic object and the regular object will refer to the | |
1688 | same memory location for the variable. */ | |
1689 | ||
0451c93c | 1690 | htab = elf_s390_hash_table (info); |
4dfe6ac6 NC |
1691 | if (htab == NULL) |
1692 | return FALSE; | |
a85d7ed0 | 1693 | |
0451c93c MS |
1694 | /* We must generate a R_390_COPY reloc to tell the dynamic linker to |
1695 | copy the initial value out of the dynamic object and into the | |
1696 | runtime process image. */ | |
5474d94f AM |
1697 | if ((h->root.u.def.section->flags & SEC_READONLY) != 0) |
1698 | { | |
1699 | s = htab->elf.sdynrelro; | |
1700 | srel = htab->elf.sreldynrelro; | |
1701 | } | |
1702 | else | |
1703 | { | |
1704 | s = htab->elf.sdynbss; | |
1705 | srel = htab->elf.srelbss; | |
1706 | } | |
1d7e9d18 | 1707 | if ((h->root.u.def.section->flags & SEC_ALLOC) != 0 && h->size != 0) |
a85d7ed0 | 1708 | { |
5474d94f | 1709 | srel->size += sizeof (Elf64_External_Rela); |
f5385ebf | 1710 | h->needs_copy = 1; |
a85d7ed0 NC |
1711 | } |
1712 | ||
6cabe1ea | 1713 | return _bfd_elf_adjust_dynamic_copy (info, h, s); |
a85d7ed0 NC |
1714 | } |
1715 | ||
0451c93c MS |
1716 | /* Allocate space in .plt, .got and associated reloc sections for |
1717 | dynamic relocs. */ | |
1718 | ||
b34976b6 | 1719 | static bfd_boolean |
4dfe6ac6 NC |
1720 | allocate_dynrelocs (struct elf_link_hash_entry *h, |
1721 | void * inf) | |
0451c93c MS |
1722 | { |
1723 | struct bfd_link_info *info; | |
1724 | struct elf_s390_link_hash_table *htab; | |
470b557a | 1725 | struct elf_s390_link_hash_entry *eh = (struct elf_s390_link_hash_entry *)h; |
00d8c7a9 | 1726 | struct elf_dyn_relocs *p; |
0451c93c | 1727 | |
e92d460e | 1728 | if (h->root.type == bfd_link_hash_indirect) |
b34976b6 | 1729 | return TRUE; |
0451c93c MS |
1730 | |
1731 | info = (struct bfd_link_info *) inf; | |
1732 | htab = elf_s390_hash_table (info); | |
4dfe6ac6 NC |
1733 | if (htab == NULL) |
1734 | return FALSE; | |
0451c93c | 1735 | |
470b557a AK |
1736 | /* Since STT_GNU_IFUNC symbol must go through PLT, we handle it |
1737 | here if it is defined and referenced in a non-shared object. */ | |
1738 | if (s390_is_ifunc_symbol_p (h) && h->def_regular) | |
61643fba | 1739 | return s390_elf_allocate_ifunc_dyn_relocs (info, h); |
470b557a AK |
1740 | else if (htab->elf.dynamic_sections_created |
1741 | && h->plt.refcount > 0) | |
0451c93c MS |
1742 | { |
1743 | /* Make sure this symbol is output as a dynamic symbol. | |
1744 | Undefined weak syms won't yet be marked as dynamic. */ | |
1745 | if (h->dynindx == -1 | |
f5385ebf | 1746 | && !h->forced_local) |
0451c93c | 1747 | { |
c152c796 | 1748 | if (! bfd_elf_link_record_dynamic_symbol (info, h)) |
b34976b6 | 1749 | return FALSE; |
0451c93c MS |
1750 | } |
1751 | ||
0e1862bb | 1752 | if (bfd_link_pic (info) |
4ec72bde | 1753 | || WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, 0, h)) |
0451c93c | 1754 | { |
f41345a7 | 1755 | asection *s = htab->elf.splt; |
0451c93c MS |
1756 | |
1757 | /* If this is the first .plt entry, make room for the special | |
1758 | first entry. */ | |
eea6121a AM |
1759 | if (s->size == 0) |
1760 | s->size += PLT_FIRST_ENTRY_SIZE; | |
0451c93c | 1761 | |
eea6121a | 1762 | h->plt.offset = s->size; |
0451c93c MS |
1763 | |
1764 | /* If this symbol is not defined in a regular file, and we are | |
1765 | not generating a shared library, then set the symbol to this | |
1766 | location in the .plt. This is required to make function | |
1767 | pointers compare as equal between the normal executable and | |
1768 | the shared library. */ | |
0e1862bb | 1769 | if (! bfd_link_pic (info) |
f5385ebf | 1770 | && !h->def_regular) |
0451c93c MS |
1771 | { |
1772 | h->root.u.def.section = s; | |
1773 | h->root.u.def.value = h->plt.offset; | |
1774 | } | |
ec338859 | 1775 | |
0451c93c | 1776 | /* Make room for this entry. */ |
eea6121a | 1777 | s->size += PLT_ENTRY_SIZE; |
ec338859 | 1778 | |
0451c93c MS |
1779 | /* We also need to make an entry in the .got.plt section, which |
1780 | will be placed in the .got section by the linker script. */ | |
f41345a7 | 1781 | htab->elf.sgotplt->size += GOT_ENTRY_SIZE; |
0451c93c MS |
1782 | |
1783 | /* We also need to make an entry in the .rela.plt section. */ | |
f41345a7 | 1784 | htab->elf.srelplt->size += sizeof (Elf64_External_Rela); |
0451c93c MS |
1785 | } |
1786 | else | |
1787 | { | |
1788 | h->plt.offset = (bfd_vma) -1; | |
f5385ebf | 1789 | h->needs_plt = 0; |
5236c819 | 1790 | elf_s390_adjust_gotplt((struct elf_s390_link_hash_entry *) h); |
0451c93c MS |
1791 | } |
1792 | } | |
1793 | else | |
1794 | { | |
1795 | h->plt.offset = (bfd_vma) -1; | |
f5385ebf | 1796 | h->needs_plt = 0; |
5236c819 | 1797 | elf_s390_adjust_gotplt((struct elf_s390_link_hash_entry *) h); |
0451c93c MS |
1798 | } |
1799 | ||
69fc87f1 MS |
1800 | /* If R_390_TLS_{IE64,GOTIE64,GOTIE12,IEENT} symbol is now local to |
1801 | the binary, we can optimize a bit. IE64 and GOTIE64 get converted | |
1802 | to R_390_TLS_LE64 requiring no TLS entry. For GOTIE12 and IEENT | |
1803 | we can save the dynamic TLS relocation. */ | |
1804 | if (h->got.refcount > 0 | |
0e1862bb | 1805 | && !bfd_link_pic (info) |
69fc87f1 MS |
1806 | && h->dynindx == -1 |
1807 | && elf_s390_hash_entry(h)->tls_type >= GOT_TLS_IE) | |
1808 | { | |
1809 | if (elf_s390_hash_entry(h)->tls_type == GOT_TLS_IE_NLT) | |
1810 | /* For the GOTIE access without a literal pool entry the offset has | |
1811 | to be stored somewhere. The immediate value in the instruction | |
1812 | is not bit enough so the value is stored in the got. */ | |
1813 | { | |
f41345a7 AK |
1814 | h->got.offset = htab->elf.sgot->size; |
1815 | htab->elf.sgot->size += GOT_ENTRY_SIZE; | |
69fc87f1 MS |
1816 | } |
1817 | else | |
1818 | h->got.offset = (bfd_vma) -1; | |
1819 | } | |
1820 | else if (h->got.refcount > 0) | |
0451c93c MS |
1821 | { |
1822 | asection *s; | |
b34976b6 | 1823 | bfd_boolean dyn; |
69fc87f1 | 1824 | int tls_type = elf_s390_hash_entry(h)->tls_type; |
0451c93c MS |
1825 | |
1826 | /* Make sure this symbol is output as a dynamic symbol. | |
1827 | Undefined weak syms won't yet be marked as dynamic. */ | |
1828 | if (h->dynindx == -1 | |
f5385ebf | 1829 | && !h->forced_local) |
0451c93c | 1830 | { |
c152c796 | 1831 | if (! bfd_elf_link_record_dynamic_symbol (info, h)) |
b34976b6 | 1832 | return FALSE; |
0451c93c MS |
1833 | } |
1834 | ||
f41345a7 | 1835 | s = htab->elf.sgot; |
eea6121a AM |
1836 | h->got.offset = s->size; |
1837 | s->size += GOT_ENTRY_SIZE; | |
69fc87f1 MS |
1838 | /* R_390_TLS_GD64 needs 2 consecutive GOT slots. */ |
1839 | if (tls_type == GOT_TLS_GD) | |
eea6121a | 1840 | s->size += GOT_ENTRY_SIZE; |
0451c93c | 1841 | dyn = htab->elf.dynamic_sections_created; |
69fc87f1 MS |
1842 | /* R_390_TLS_IE64 needs one dynamic relocation, |
1843 | R_390_TLS_GD64 needs one if local symbol and two if global. */ | |
1844 | if ((tls_type == GOT_TLS_GD && h->dynindx == -1) | |
1845 | || tls_type >= GOT_TLS_IE) | |
f41345a7 | 1846 | htab->elf.srelgot->size += sizeof (Elf64_External_Rela); |
69fc87f1 | 1847 | else if (tls_type == GOT_TLS_GD) |
f41345a7 | 1848 | htab->elf.srelgot->size += 2 * sizeof (Elf64_External_Rela); |
82058a73 MS |
1849 | else if ((ELF_ST_VISIBILITY (h->other) == STV_DEFAULT |
1850 | || h->root.type != bfd_link_hash_undefweak) | |
0e1862bb | 1851 | && (bfd_link_pic (info) |
82058a73 | 1852 | || WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, 0, h))) |
f41345a7 | 1853 | htab->elf.srelgot->size += sizeof (Elf64_External_Rela); |
0451c93c MS |
1854 | } |
1855 | else | |
1856 | h->got.offset = (bfd_vma) -1; | |
1857 | ||
0451c93c | 1858 | if (eh->dyn_relocs == NULL) |
b34976b6 | 1859 | return TRUE; |
0451c93c MS |
1860 | |
1861 | /* In the shared -Bsymbolic case, discard space allocated for | |
1862 | dynamic pc-relative relocs against symbols which turn out to be | |
1863 | defined in regular objects. For the normal shared case, discard | |
1864 | space for pc-relative relocs that have become local due to symbol | |
1865 | visibility changes. */ | |
1866 | ||
0e1862bb | 1867 | if (bfd_link_pic (info)) |
0451c93c | 1868 | { |
8c21ca21 | 1869 | if (SYMBOL_CALLS_LOCAL (info, h)) |
0451c93c | 1870 | { |
00d8c7a9 | 1871 | struct elf_dyn_relocs **pp; |
0451c93c MS |
1872 | |
1873 | for (pp = &eh->dyn_relocs; (p = *pp) != NULL; ) | |
1874 | { | |
1875 | p->count -= p->pc_count; | |
1876 | p->pc_count = 0; | |
1877 | if (p->count == 0) | |
1878 | *pp = p->next; | |
1879 | else | |
1880 | pp = &p->next; | |
1881 | } | |
1882 | } | |
82058a73 MS |
1883 | |
1884 | /* Also discard relocs on undefined weak syms with non-default | |
1885 | visibility. */ | |
22d606e9 | 1886 | if (eh->dyn_relocs != NULL |
82058a73 | 1887 | && h->root.type == bfd_link_hash_undefweak) |
22d606e9 AM |
1888 | { |
1889 | if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT) | |
1890 | eh->dyn_relocs = NULL; | |
1891 | ||
1892 | /* Make sure undefined weak symbols are output as a dynamic | |
1893 | symbol in PIEs. */ | |
1894 | else if (h->dynindx == -1 | |
1895 | && !h->forced_local) | |
1896 | { | |
1897 | if (! bfd_elf_link_record_dynamic_symbol (info, h)) | |
1898 | return FALSE; | |
1899 | } | |
1900 | } | |
0451c93c | 1901 | } |
64285810 | 1902 | else if (ELIMINATE_COPY_RELOCS) |
0451c93c MS |
1903 | { |
1904 | /* For the non-shared case, discard space for relocs against | |
1905 | symbols which turn out to need copy relocs or are not | |
1906 | dynamic. */ | |
1907 | ||
f5385ebf AM |
1908 | if (!h->non_got_ref |
1909 | && ((h->def_dynamic | |
1910 | && !h->def_regular) | |
0451c93c MS |
1911 | || (htab->elf.dynamic_sections_created |
1912 | && (h->root.type == bfd_link_hash_undefweak | |
1913 | || h->root.type == bfd_link_hash_undefined)))) | |
1914 | { | |
1915 | /* Make sure this symbol is output as a dynamic symbol. | |
1916 | Undefined weak syms won't yet be marked as dynamic. */ | |
1917 | if (h->dynindx == -1 | |
f5385ebf | 1918 | && !h->forced_local) |
0451c93c | 1919 | { |
c152c796 | 1920 | if (! bfd_elf_link_record_dynamic_symbol (info, h)) |
b34976b6 | 1921 | return FALSE; |
0451c93c MS |
1922 | } |
1923 | ||
1924 | /* If that succeeded, we know we'll be keeping all the | |
1925 | relocs. */ | |
1926 | if (h->dynindx != -1) | |
1927 | goto keep; | |
1928 | } | |
1929 | ||
1930 | eh->dyn_relocs = NULL; | |
1931 | ||
ec338859 | 1932 | keep: ; |
0451c93c MS |
1933 | } |
1934 | ||
1935 | /* Finally, allocate space. */ | |
1936 | for (p = eh->dyn_relocs; p != NULL; p = p->next) | |
1937 | { | |
1938 | asection *sreloc = elf_section_data (p->sec)->sreloc; | |
eea6121a | 1939 | sreloc->size += p->count * sizeof (Elf64_External_Rela); |
0451c93c MS |
1940 | } |
1941 | ||
b34976b6 | 1942 | return TRUE; |
0451c93c MS |
1943 | } |
1944 | ||
1945 | /* Find any dynamic relocs that apply to read-only sections. */ | |
1946 | ||
b34976b6 | 1947 | static bfd_boolean |
2c3fc389 | 1948 | readonly_dynrelocs (struct elf_link_hash_entry *h, void * inf) |
0451c93c MS |
1949 | { |
1950 | struct elf_s390_link_hash_entry *eh; | |
00d8c7a9 | 1951 | struct elf_dyn_relocs *p; |
0451c93c MS |
1952 | |
1953 | eh = (struct elf_s390_link_hash_entry *) h; | |
1954 | for (p = eh->dyn_relocs; p != NULL; p = p->next) | |
1955 | { | |
1956 | asection *s = p->sec->output_section; | |
1957 | ||
1958 | if (s != NULL && (s->flags & SEC_READONLY) != 0) | |
1959 | { | |
1960 | struct bfd_link_info *info = (struct bfd_link_info *) inf; | |
1961 | ||
1962 | info->flags |= DF_TEXTREL; | |
1963 | ||
1964 | /* Not an error, just cut short the traversal. */ | |
b34976b6 | 1965 | return FALSE; |
0451c93c MS |
1966 | } |
1967 | } | |
b34976b6 | 1968 | return TRUE; |
0451c93c MS |
1969 | } |
1970 | ||
a85d7ed0 NC |
1971 | /* Set the sizes of the dynamic sections. */ |
1972 | ||
b34976b6 | 1973 | static bfd_boolean |
4dfe6ac6 NC |
1974 | elf_s390_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED, |
1975 | struct bfd_link_info *info) | |
a85d7ed0 | 1976 | { |
0451c93c | 1977 | struct elf_s390_link_hash_table *htab; |
a85d7ed0 NC |
1978 | bfd *dynobj; |
1979 | asection *s; | |
b34976b6 | 1980 | bfd_boolean relocs; |
0451c93c | 1981 | bfd *ibfd; |
a85d7ed0 | 1982 | |
0451c93c | 1983 | htab = elf_s390_hash_table (info); |
4dfe6ac6 NC |
1984 | if (htab == NULL) |
1985 | return FALSE; | |
1986 | ||
0451c93c MS |
1987 | dynobj = htab->elf.dynobj; |
1988 | if (dynobj == NULL) | |
1989 | abort (); | |
a85d7ed0 | 1990 | |
0451c93c | 1991 | if (htab->elf.dynamic_sections_created) |
a85d7ed0 NC |
1992 | { |
1993 | /* Set the contents of the .interp section to the interpreter. */ | |
9b8b325a | 1994 | if (bfd_link_executable (info) && !info->nointerp) |
a85d7ed0 | 1995 | { |
3d4d4302 | 1996 | s = bfd_get_linker_section (dynobj, ".interp"); |
0451c93c MS |
1997 | if (s == NULL) |
1998 | abort (); | |
eea6121a | 1999 | s->size = sizeof ELF_DYNAMIC_INTERPRETER; |
a85d7ed0 NC |
2000 | s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER; |
2001 | } | |
2002 | } | |
a85d7ed0 | 2003 | |
0451c93c MS |
2004 | /* Set up .got offsets for local syms, and space for local dynamic |
2005 | relocs. */ | |
c72f2fb2 | 2006 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) |
a85d7ed0 | 2007 | { |
0451c93c MS |
2008 | bfd_signed_vma *local_got; |
2009 | bfd_signed_vma *end_local_got; | |
69fc87f1 | 2010 | char *local_tls_type; |
0451c93c MS |
2011 | bfd_size_type locsymcount; |
2012 | Elf_Internal_Shdr *symtab_hdr; | |
2013 | asection *srela; | |
470b557a AK |
2014 | struct plt_entry *local_plt; |
2015 | unsigned int i; | |
a85d7ed0 | 2016 | |
0ffa91dd | 2017 | if (! is_s390_elf (ibfd)) |
a85d7ed0 NC |
2018 | continue; |
2019 | ||
0451c93c | 2020 | for (s = ibfd->sections; s != NULL; s = s->next) |
a85d7ed0 | 2021 | { |
00d8c7a9 | 2022 | struct elf_dyn_relocs *p; |
0451c93c | 2023 | |
6edfbbad | 2024 | for (p = elf_section_data (s)->local_dynrel; p != NULL; p = p->next) |
a85d7ed0 | 2025 | { |
ec338859 AM |
2026 | if (!bfd_is_abs_section (p->sec) |
2027 | && bfd_is_abs_section (p->sec->output_section)) | |
2028 | { | |
2029 | /* Input section has been discarded, either because | |
2030 | it is a copy of a linkonce section or due to | |
2031 | linker script /DISCARD/, so we'll be discarding | |
2032 | the relocs too. */ | |
2033 | } | |
248866a8 | 2034 | else if (p->count != 0) |
ec338859 AM |
2035 | { |
2036 | srela = elf_section_data (p->sec)->sreloc; | |
eea6121a | 2037 | srela->size += p->count * sizeof (Elf64_External_Rela); |
248866a8 AM |
2038 | if ((p->sec->output_section->flags & SEC_READONLY) != 0) |
2039 | info->flags |= DF_TEXTREL; | |
ec338859 | 2040 | } |
a85d7ed0 NC |
2041 | } |
2042 | } | |
0451c93c MS |
2043 | |
2044 | local_got = elf_local_got_refcounts (ibfd); | |
2045 | if (!local_got) | |
2046 | continue; | |
2047 | ||
0ffa91dd | 2048 | symtab_hdr = &elf_symtab_hdr (ibfd); |
0451c93c MS |
2049 | locsymcount = symtab_hdr->sh_info; |
2050 | end_local_got = local_got + locsymcount; | |
69fc87f1 | 2051 | local_tls_type = elf_s390_local_got_tls_type (ibfd); |
f41345a7 AK |
2052 | s = htab->elf.sgot; |
2053 | srela = htab->elf.srelgot; | |
69fc87f1 | 2054 | for (; local_got < end_local_got; ++local_got, ++local_tls_type) |
a85d7ed0 | 2055 | { |
0451c93c | 2056 | if (*local_got > 0) |
a85d7ed0 | 2057 | { |
eea6121a AM |
2058 | *local_got = s->size; |
2059 | s->size += GOT_ENTRY_SIZE; | |
69fc87f1 | 2060 | if (*local_tls_type == GOT_TLS_GD) |
eea6121a | 2061 | s->size += GOT_ENTRY_SIZE; |
0e1862bb | 2062 | if (bfd_link_pic (info)) |
eea6121a | 2063 | srela->size += sizeof (Elf64_External_Rela); |
a85d7ed0 NC |
2064 | } |
2065 | else | |
0451c93c | 2066 | *local_got = (bfd_vma) -1; |
a85d7ed0 | 2067 | } |
470b557a AK |
2068 | |
2069 | local_plt = elf_s390_local_plt (ibfd); | |
2070 | for (i = 0; i < symtab_hdr->sh_info; i++) | |
2071 | { | |
2072 | if (local_plt[i].plt.refcount > 0) | |
2073 | { | |
2074 | local_plt[i].plt.offset = htab->elf.iplt->size; | |
2075 | htab->elf.iplt->size += PLT_ENTRY_SIZE; | |
2076 | htab->elf.igotplt->size += GOT_ENTRY_SIZE; | |
2077 | htab->elf.irelplt->size += sizeof (Elf64_External_Rela); | |
2078 | } | |
2079 | else | |
2080 | local_plt[i].plt.offset = (bfd_vma) -1; | |
2081 | } | |
0451c93c MS |
2082 | } |
2083 | ||
69fc87f1 MS |
2084 | if (htab->tls_ldm_got.refcount > 0) |
2085 | { | |
2086 | /* Allocate 2 got entries and 1 dynamic reloc for R_390_TLS_LDM64 | |
2087 | relocs. */ | |
f41345a7 AK |
2088 | htab->tls_ldm_got.offset = htab->elf.sgot->size; |
2089 | htab->elf.sgot->size += 2 * GOT_ENTRY_SIZE; | |
2090 | htab->elf.srelgot->size += sizeof (Elf64_External_Rela); | |
69fc87f1 MS |
2091 | } |
2092 | else | |
2093 | htab->tls_ldm_got.offset = -1; | |
2094 | ||
0451c93c MS |
2095 | /* Allocate global sym .plt and .got entries, and space for global |
2096 | sym dynamic relocs. */ | |
2c3fc389 | 2097 | elf_link_hash_traverse (&htab->elf, allocate_dynrelocs, info); |
0451c93c MS |
2098 | |
2099 | /* We now have determined the sizes of the various dynamic sections. | |
2100 | Allocate memory for them. */ | |
b34976b6 | 2101 | relocs = FALSE; |
0451c93c MS |
2102 | for (s = dynobj->sections; s != NULL; s = s->next) |
2103 | { | |
2104 | if ((s->flags & SEC_LINKER_CREATED) == 0) | |
2105 | continue; | |
2106 | ||
f41345a7 AK |
2107 | if (s == htab->elf.splt |
2108 | || s == htab->elf.sgot | |
2109 | || s == htab->elf.sgotplt | |
9d19e4fd | 2110 | || s == htab->elf.sdynbss |
5474d94f | 2111 | || s == htab->elf.sdynrelro |
470b557a AK |
2112 | || s == htab->elf.iplt |
2113 | || s == htab->elf.igotplt | |
2114 | || s == htab->irelifunc) | |
0451c93c MS |
2115 | { |
2116 | /* Strip this section if we don't need it; see the | |
2117 | comment below. */ | |
2118 | } | |
0112cd26 | 2119 | else if (CONST_STRNEQ (bfd_get_section_name (dynobj, s), ".rela")) |
0451c93c | 2120 | { |
f41345a7 | 2121 | if (s->size != 0 && s != htab->elf.srelplt) |
b34976b6 | 2122 | relocs = TRUE; |
ec338859 | 2123 | |
0451c93c MS |
2124 | /* We use the reloc_count field as a counter if we need |
2125 | to copy relocs into the output file. */ | |
2126 | s->reloc_count = 0; | |
2127 | } | |
2128 | else | |
a85d7ed0 NC |
2129 | { |
2130 | /* It's not one of our sections, so don't allocate space. */ | |
2131 | continue; | |
2132 | } | |
2133 | ||
eea6121a | 2134 | if (s->size == 0) |
a85d7ed0 | 2135 | { |
0451c93c MS |
2136 | /* If we don't need this section, strip it from the |
2137 | output file. This is to handle .rela.bss and | |
2138 | .rela.plt. We must create it in | |
2139 | create_dynamic_sections, because it must be created | |
2140 | before the linker maps input sections to output | |
2141 | sections. The linker does that before | |
2142 | adjust_dynamic_symbol is called, and it is that | |
2143 | function which decides whether anything needs to go | |
2144 | into these sections. */ | |
2145 | ||
8423293d | 2146 | s->flags |= SEC_EXCLUDE; |
a85d7ed0 NC |
2147 | continue; |
2148 | } | |
2149 | ||
c456f082 AM |
2150 | if ((s->flags & SEC_HAS_CONTENTS) == 0) |
2151 | continue; | |
2152 | ||
0451c93c MS |
2153 | /* Allocate memory for the section contents. We use bfd_zalloc |
2154 | here in case unused entries are not reclaimed before the | |
2155 | section's contents are written out. This should not happen, | |
2156 | but this way if it does, we get a R_390_NONE reloc instead | |
2157 | of garbage. */ | |
eea6121a | 2158 | s->contents = (bfd_byte *) bfd_zalloc (dynobj, s->size); |
0451c93c | 2159 | if (s->contents == NULL) |
b34976b6 | 2160 | return FALSE; |
a85d7ed0 NC |
2161 | } |
2162 | ||
0451c93c | 2163 | if (htab->elf.dynamic_sections_created) |
a85d7ed0 NC |
2164 | { |
2165 | /* Add some entries to the .dynamic section. We fill in the | |
2166 | values later, in elf_s390_finish_dynamic_sections, but we | |
2167 | must add the entries now so that we get the correct size for | |
2168 | the .dynamic section. The DT_DEBUG entry is filled in by the | |
2169 | dynamic linker and used by the debugger. */ | |
dc810e39 | 2170 | #define add_dynamic_entry(TAG, VAL) \ |
5a580b3a | 2171 | _bfd_elf_add_dynamic_entry (info, TAG, VAL) |
dc810e39 | 2172 | |
0e1862bb | 2173 | if (bfd_link_executable (info)) |
a85d7ed0 | 2174 | { |
dc810e39 | 2175 | if (!add_dynamic_entry (DT_DEBUG, 0)) |
b34976b6 | 2176 | return FALSE; |
a85d7ed0 NC |
2177 | } |
2178 | ||
f41345a7 | 2179 | if (htab->elf.splt->size != 0) |
a85d7ed0 | 2180 | { |
dc810e39 AM |
2181 | if (!add_dynamic_entry (DT_PLTGOT, 0) |
2182 | || !add_dynamic_entry (DT_PLTRELSZ, 0) | |
2183 | || !add_dynamic_entry (DT_PLTREL, DT_RELA) | |
2184 | || !add_dynamic_entry (DT_JMPREL, 0)) | |
b34976b6 | 2185 | return FALSE; |
a85d7ed0 NC |
2186 | } |
2187 | ||
2188 | if (relocs) | |
947216bf AM |
2189 | { |
2190 | if (!add_dynamic_entry (DT_RELA, 0) | |
2191 | || !add_dynamic_entry (DT_RELASZ, 0) | |
2192 | || !add_dynamic_entry (DT_RELAENT, sizeof (Elf64_External_Rela))) | |
b34976b6 | 2193 | return FALSE; |
ec338859 | 2194 | |
0451c93c MS |
2195 | /* If any dynamic relocs apply to a read-only section, |
2196 | then we need a DT_TEXTREL entry. */ | |
248866a8 AM |
2197 | if ((info->flags & DF_TEXTREL) == 0) |
2198 | elf_link_hash_traverse (&htab->elf, readonly_dynrelocs, | |
2c3fc389 | 2199 | info); |
ec338859 | 2200 | |
0451c93c MS |
2201 | if ((info->flags & DF_TEXTREL) != 0) |
2202 | { | |
2203 | if (!add_dynamic_entry (DT_TEXTREL, 0)) | |
b34976b6 | 2204 | return FALSE; |
0451c93c | 2205 | } |
a85d7ed0 NC |
2206 | } |
2207 | } | |
dc810e39 | 2208 | #undef add_dynamic_entry |
a85d7ed0 | 2209 | |
b34976b6 | 2210 | return TRUE; |
a85d7ed0 NC |
2211 | } |
2212 | ||
69fc87f1 MS |
2213 | /* Return the base VMA address which should be subtracted from real addresses |
2214 | when resolving @dtpoff relocation. | |
2215 | This is PT_TLS segment p_vaddr. */ | |
2216 | ||
2217 | static bfd_vma | |
2c3fc389 | 2218 | dtpoff_base (struct bfd_link_info *info) |
69fc87f1 | 2219 | { |
e1918d23 AM |
2220 | /* If tls_sec is NULL, we should have signalled an error already. */ |
2221 | if (elf_hash_table (info)->tls_sec == NULL) | |
69fc87f1 | 2222 | return 0; |
e1918d23 | 2223 | return elf_hash_table (info)->tls_sec->vma; |
69fc87f1 MS |
2224 | } |
2225 | ||
2226 | /* Return the relocation value for @tpoff relocation | |
2227 | if STT_TLS virtual address is ADDRESS. */ | |
2228 | ||
2229 | static bfd_vma | |
2c3fc389 | 2230 | tpoff (struct bfd_link_info *info, bfd_vma address) |
69fc87f1 | 2231 | { |
e1918d23 | 2232 | struct elf_link_hash_table *htab = elf_hash_table (info); |
69fc87f1 | 2233 | |
e1918d23 AM |
2234 | /* If tls_sec is NULL, we should have signalled an error already. */ |
2235 | if (htab->tls_sec == NULL) | |
69fc87f1 | 2236 | return 0; |
e1918d23 | 2237 | return htab->tls_size + htab->tls_sec->vma - address; |
69fc87f1 MS |
2238 | } |
2239 | ||
2240 | /* Complain if TLS instruction relocation is against an invalid | |
2241 | instruction. */ | |
2242 | ||
2243 | static void | |
2c3fc389 NC |
2244 | invalid_tls_insn (bfd *input_bfd, |
2245 | asection *input_section, | |
2246 | Elf_Internal_Rela *rel) | |
69fc87f1 MS |
2247 | { |
2248 | reloc_howto_type *howto; | |
2249 | ||
2250 | howto = elf_howto_table + ELF64_R_TYPE (rel->r_info); | |
4eca0228 | 2251 | _bfd_error_handler |
695344c0 | 2252 | /* xgettext:c-format */ |
d003868e AM |
2253 | (_("%B(%A+0x%lx): invalid instruction for TLS relocation %s"), |
2254 | input_bfd, | |
2255 | input_section, | |
69fc87f1 MS |
2256 | (long) rel->r_offset, |
2257 | howto->name); | |
77df2968 | 2258 | bfd_set_error (bfd_error_bad_value); |
69fc87f1 MS |
2259 | } |
2260 | ||
a85d7ed0 NC |
2261 | /* Relocate a 390 ELF section. */ |
2262 | ||
b34976b6 | 2263 | static bfd_boolean |
4dfe6ac6 NC |
2264 | elf_s390_relocate_section (bfd *output_bfd, |
2265 | struct bfd_link_info *info, | |
2266 | bfd *input_bfd, | |
2267 | asection *input_section, | |
2268 | bfd_byte *contents, | |
2269 | Elf_Internal_Rela *relocs, | |
2270 | Elf_Internal_Sym *local_syms, | |
2271 | asection **local_sections) | |
a85d7ed0 | 2272 | { |
0451c93c | 2273 | struct elf_s390_link_hash_table *htab; |
a85d7ed0 NC |
2274 | Elf_Internal_Shdr *symtab_hdr; |
2275 | struct elf_link_hash_entry **sym_hashes; | |
2276 | bfd_vma *local_got_offsets; | |
a85d7ed0 NC |
2277 | Elf_Internal_Rela *rel; |
2278 | Elf_Internal_Rela *relend; | |
2279 | ||
0ffa91dd NC |
2280 | BFD_ASSERT (is_s390_elf (input_bfd)); |
2281 | ||
0451c93c | 2282 | htab = elf_s390_hash_table (info); |
4dfe6ac6 NC |
2283 | if (htab == NULL) |
2284 | return FALSE; | |
2285 | ||
0ffa91dd | 2286 | symtab_hdr = &elf_symtab_hdr (input_bfd); |
a85d7ed0 NC |
2287 | sym_hashes = elf_sym_hashes (input_bfd); |
2288 | local_got_offsets = elf_local_got_offsets (input_bfd); | |
2289 | ||
a85d7ed0 NC |
2290 | rel = relocs; |
2291 | relend = relocs + input_section->reloc_count; | |
2292 | for (; rel < relend; rel++) | |
2293 | { | |
5236c819 | 2294 | unsigned int r_type; |
a85d7ed0 NC |
2295 | reloc_howto_type *howto; |
2296 | unsigned long r_symndx; | |
2297 | struct elf_link_hash_entry *h; | |
2298 | Elf_Internal_Sym *sym; | |
2299 | asection *sec; | |
0451c93c | 2300 | bfd_vma off; |
a85d7ed0 | 2301 | bfd_vma relocation; |
b34976b6 | 2302 | bfd_boolean unresolved_reloc; |
a85d7ed0 | 2303 | bfd_reloc_status_type r; |
69fc87f1 | 2304 | int tls_type; |
470b557a | 2305 | asection *base_got = htab->elf.sgot; |
a85d7ed0 NC |
2306 | |
2307 | r_type = ELF64_R_TYPE (rel->r_info); | |
0451c93c | 2308 | if (r_type == (int) R_390_GNU_VTINHERIT |
947216bf AM |
2309 | || r_type == (int) R_390_GNU_VTENTRY) |
2310 | continue; | |
5236c819 | 2311 | if (r_type >= (int) R_390_max) |
a85d7ed0 NC |
2312 | { |
2313 | bfd_set_error (bfd_error_bad_value); | |
b34976b6 | 2314 | return FALSE; |
a85d7ed0 | 2315 | } |
a85d7ed0 | 2316 | |
b491616a | 2317 | howto = elf_howto_table + r_type; |
a85d7ed0 | 2318 | r_symndx = ELF64_R_SYM (rel->r_info); |
5236c819 | 2319 | |
a85d7ed0 NC |
2320 | h = NULL; |
2321 | sym = NULL; | |
2322 | sec = NULL; | |
b34976b6 | 2323 | unresolved_reloc = FALSE; |
a85d7ed0 NC |
2324 | if (r_symndx < symtab_hdr->sh_info) |
2325 | { | |
2326 | sym = local_syms + r_symndx; | |
2327 | sec = local_sections[r_symndx]; | |
470b557a AK |
2328 | |
2329 | if (ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC) | |
2330 | { | |
2331 | struct plt_entry *local_plt = elf_s390_local_plt (input_bfd); | |
2332 | if (local_plt == NULL) | |
2333 | return FALSE; | |
2334 | ||
2335 | /* Address of the PLT slot. */ | |
2336 | relocation = (htab->elf.iplt->output_section->vma | |
2337 | + htab->elf.iplt->output_offset | |
2338 | + local_plt[r_symndx].plt.offset); | |
2339 | ||
2340 | switch (r_type) | |
2341 | { | |
31db78f6 AK |
2342 | case R_390_PLTOFF16: |
2343 | case R_390_PLTOFF32: | |
2344 | case R_390_PLTOFF64: | |
2345 | relocation -= htab->elf.sgot->output_section->vma; | |
2346 | break; | |
470b557a AK |
2347 | case R_390_GOTPLT12: |
2348 | case R_390_GOTPLT16: | |
2349 | case R_390_GOTPLT20: | |
2350 | case R_390_GOTPLT32: | |
2351 | case R_390_GOTPLT64: | |
2352 | case R_390_GOTPLTENT: | |
2353 | case R_390_GOT12: | |
2354 | case R_390_GOT16: | |
2355 | case R_390_GOT20: | |
2356 | case R_390_GOT32: | |
2357 | case R_390_GOT64: | |
2358 | case R_390_GOTENT: | |
2359 | { | |
2360 | /* Write the PLT slot address into the GOT slot. */ | |
2361 | bfd_put_64 (output_bfd, relocation, | |
2362 | htab->elf.sgot->contents + | |
2363 | local_got_offsets[r_symndx]); | |
2364 | relocation = (local_got_offsets[r_symndx] + | |
2365 | htab->elf.sgot->output_offset); | |
2366 | ||
2367 | if (r_type == R_390_GOTENT || r_type == R_390_GOTPLTENT) | |
2368 | relocation += htab->elf.sgot->output_section->vma; | |
2369 | break; | |
2370 | } | |
2371 | default: | |
2372 | break; | |
2373 | } | |
2374 | /* The output section is needed later in | |
2375 | finish_dynamic_section when creating the dynamic | |
2376 | relocation. */ | |
2377 | local_plt[r_symndx].sec = sec; | |
2378 | goto do_relocation; | |
2379 | } | |
2380 | else | |
2381 | relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel); | |
a85d7ed0 NC |
2382 | } |
2383 | else | |
2384 | { | |
560e09e9 | 2385 | bfd_boolean warned ATTRIBUTE_UNUSED; |
62d887d4 | 2386 | bfd_boolean ignored ATTRIBUTE_UNUSED; |
0451c93c | 2387 | |
b2a8e766 AM |
2388 | RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel, |
2389 | r_symndx, symtab_hdr, sym_hashes, | |
2390 | h, sec, relocation, | |
62d887d4 | 2391 | unresolved_reloc, warned, ignored); |
a85d7ed0 NC |
2392 | } |
2393 | ||
dbaa2011 | 2394 | if (sec != NULL && discarded_section (sec)) |
e4067dbb | 2395 | RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section, |
545fd46b | 2396 | rel, 1, relend, howto, 0, contents); |
ab96bf03 | 2397 | |
0e1862bb | 2398 | if (bfd_link_relocatable (info)) |
ab96bf03 AM |
2399 | continue; |
2400 | ||
a85d7ed0 NC |
2401 | switch (r_type) |
2402 | { | |
5236c819 MS |
2403 | case R_390_GOTPLT12: |
2404 | case R_390_GOTPLT16: | |
bd1ea41b | 2405 | case R_390_GOTPLT20: |
5236c819 MS |
2406 | case R_390_GOTPLT32: |
2407 | case R_390_GOTPLT64: | |
2408 | case R_390_GOTPLTENT: | |
2409 | /* There are three cases for a GOTPLT relocation. 1) The | |
2410 | relocation is against the jump slot entry of a plt that | |
2411 | will get emitted to the output file. 2) The relocation | |
2412 | is against the jump slot of a plt entry that has been | |
2413 | removed. elf_s390_adjust_gotplt has created a GOT entry | |
2414 | as replacement. 3) The relocation is against a local symbol. | |
2415 | Cases 2) and 3) are the same as the GOT relocation code | |
2416 | so we just have to test for case 1 and fall through for | |
2417 | the other two. */ | |
2418 | if (h != NULL && h->plt.offset != (bfd_vma) -1) | |
2419 | { | |
2420 | bfd_vma plt_index; | |
2421 | ||
470b557a AK |
2422 | if (s390_is_ifunc_symbol_p (h)) |
2423 | { | |
2424 | plt_index = h->plt.offset / PLT_ENTRY_SIZE; | |
2425 | relocation = (plt_index * GOT_ENTRY_SIZE + | |
2426 | htab->elf.igotplt->output_offset); | |
2427 | if (r_type == R_390_GOTPLTENT) | |
2428 | relocation += htab->elf.igotplt->output_section->vma; | |
2429 | } | |
2430 | else | |
2431 | { | |
2432 | /* Calc. index no. | |
2433 | Current offset - size first entry / entry size. */ | |
2434 | plt_index = (h->plt.offset - PLT_FIRST_ENTRY_SIZE) / | |
2435 | PLT_ENTRY_SIZE; | |
2436 | ||
2437 | /* Offset in GOT is PLT index plus GOT headers(3) | |
3b67f094 | 2438 | times 8, addr & GOT addr. */ |
470b557a AK |
2439 | relocation = (plt_index + 3) * GOT_ENTRY_SIZE; |
2440 | if (r_type == R_390_GOTPLTENT) | |
2441 | relocation += htab->elf.sgot->output_section->vma; | |
2442 | } | |
5236c819 | 2443 | unresolved_reloc = FALSE; |
5236c819 MS |
2444 | break; |
2445 | } | |
2446 | /* Fall through. */ | |
2447 | ||
947216bf AM |
2448 | case R_390_GOT12: |
2449 | case R_390_GOT16: | |
bd1ea41b | 2450 | case R_390_GOT20: |
947216bf AM |
2451 | case R_390_GOT32: |
2452 | case R_390_GOT64: | |
2453 | case R_390_GOTENT: | |
2454 | /* Relocation is to the entry for this symbol in the global | |
2455 | offset table. */ | |
470b557a | 2456 | if (base_got == NULL) |
0451c93c | 2457 | abort (); |
a85d7ed0 | 2458 | |
947216bf AM |
2459 | if (h != NULL) |
2460 | { | |
b34976b6 | 2461 | bfd_boolean dyn; |
a85d7ed0 | 2462 | |
947216bf | 2463 | off = h->got.offset; |
0451c93c | 2464 | dyn = htab->elf.dynamic_sections_created; |
470b557a AK |
2465 | |
2466 | if (s390_is_ifunc_symbol_p (h)) | |
2467 | { | |
2468 | BFD_ASSERT (h->plt.offset != (bfd_vma) -1); | |
2469 | if (off == (bfd_vma)-1) | |
2470 | { | |
2471 | /* No explicit GOT usage so redirect to the | |
2472 | got.iplt slot. */ | |
2473 | base_got = htab->elf.igotplt; | |
2474 | off = h->plt.offset / PLT_ENTRY_SIZE * GOT_ENTRY_SIZE; | |
2475 | } | |
2476 | else | |
2477 | { | |
2478 | /* Explicit GOT slots must contain the address | |
2479 | of the PLT slot. This will be handled in | |
2480 | finish_dynamic_symbol. */ | |
2481 | } | |
2482 | } | |
0e1862bb L |
2483 | else if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, |
2484 | bfd_link_pic (info), | |
2485 | h) | |
2486 | || (bfd_link_pic (info) | |
470b557a AK |
2487 | && SYMBOL_REFERENCES_LOCAL (info, h)) |
2488 | || (ELF_ST_VISIBILITY (h->other) | |
2489 | && h->root.type == bfd_link_hash_undefweak)) | |
947216bf AM |
2490 | { |
2491 | /* This is actually a static link, or it is a | |
2492 | -Bsymbolic link and the symbol is defined | |
2493 | locally, or the symbol was forced to be local | |
2494 | because of a version file. We must initialize | |
2495 | this entry in the global offset table. Since the | |
2496 | offset must always be a multiple of 2, we use the | |
2497 | least significant bit to record whether we have | |
2498 | initialized it already. | |
2499 | ||
2500 | When doing a dynamic link, we create a .rel.got | |
2501 | relocation entry to initialize the value. This | |
2502 | is done in the finish_dynamic_symbol routine. */ | |
2503 | if ((off & 1) != 0) | |
2504 | off &= ~1; | |
2505 | else | |
2506 | { | |
a85d7ed0 | 2507 | bfd_put_64 (output_bfd, relocation, |
470b557a | 2508 | base_got->contents + off); |
947216bf AM |
2509 | h->got.offset |= 1; |
2510 | } | |
a63cc5f7 AK |
2511 | |
2512 | if ((h->def_regular | |
0e1862bb | 2513 | && bfd_link_pic (info) |
a63cc5f7 AK |
2514 | && SYMBOL_REFERENCES_LOCAL (info, h)) |
2515 | /* lgrl rx,sym@GOTENT -> larl rx, sym */ | |
2516 | && ((r_type == R_390_GOTENT | |
2517 | && (bfd_get_16 (input_bfd, | |
2518 | contents + rel->r_offset - 2) | |
2519 | & 0xff0f) == 0xc408) | |
2520 | /* lg rx, sym@GOT(r12) -> larl rx, sym */ | |
2521 | || (r_type == R_390_GOT20 | |
2522 | && (bfd_get_32 (input_bfd, | |
2523 | contents + rel->r_offset - 2) | |
2524 | & 0xff00f000) == 0xe300c000 | |
2525 | && bfd_get_8 (input_bfd, | |
2526 | contents + rel->r_offset + 3) == 0x04))) | |
2527 | ||
2528 | { | |
2529 | unsigned short new_insn = | |
2530 | (0xc000 | (bfd_get_8 (input_bfd, | |
2531 | contents + rel->r_offset - 1) & 0xf0)); | |
2532 | bfd_put_16 (output_bfd, new_insn, | |
2533 | contents + rel->r_offset - 2); | |
2534 | r_type = R_390_PC32DBL; | |
2535 | rel->r_addend = 2; | |
2536 | howto = elf_howto_table + r_type; | |
2537 | relocation = h->root.u.def.value | |
2538 | + h->root.u.def.section->output_section->vma | |
2539 | + h->root.u.def.section->output_offset; | |
2540 | goto do_relocation; | |
2541 | } | |
947216bf | 2542 | } |
0451c93c | 2543 | else |
b34976b6 | 2544 | unresolved_reloc = FALSE; |
947216bf AM |
2545 | } |
2546 | else | |
2547 | { | |
0451c93c MS |
2548 | if (local_got_offsets == NULL) |
2549 | abort (); | |
a85d7ed0 | 2550 | |
947216bf | 2551 | off = local_got_offsets[r_symndx]; |
a85d7ed0 | 2552 | |
947216bf AM |
2553 | /* The offset must always be a multiple of 8. We use |
2554 | the least significant bit to record whether we have | |
2555 | already generated the necessary reloc. */ | |
2556 | if ((off & 1) != 0) | |
2557 | off &= ~1; | |
2558 | else | |
2559 | { | |
2560 | bfd_put_64 (output_bfd, relocation, | |
f41345a7 | 2561 | htab->elf.sgot->contents + off); |
a85d7ed0 | 2562 | |
0e1862bb | 2563 | if (bfd_link_pic (info)) |
947216bf AM |
2564 | { |
2565 | asection *s; | |
2566 | Elf_Internal_Rela outrel; | |
2567 | bfd_byte *loc; | |
a85d7ed0 | 2568 | |
f41345a7 | 2569 | s = htab->elf.srelgot; |
947216bf | 2570 | if (s == NULL) |
0451c93c | 2571 | abort (); |
a85d7ed0 | 2572 | |
f41345a7 AK |
2573 | outrel.r_offset = (htab->elf.sgot->output_section->vma |
2574 | + htab->elf.sgot->output_offset | |
947216bf AM |
2575 | + off); |
2576 | outrel.r_info = ELF64_R_INFO (0, R_390_RELATIVE); | |
a85d7ed0 | 2577 | outrel.r_addend = relocation; |
947216bf AM |
2578 | loc = s->contents; |
2579 | loc += s->reloc_count++ * sizeof (Elf64_External_Rela); | |
2580 | bfd_elf64_swap_reloca_out (output_bfd, &outrel, loc); | |
2581 | } | |
a85d7ed0 | 2582 | |
947216bf AM |
2583 | local_got_offsets[r_symndx] |= 1; |
2584 | } | |
2585 | } | |
a85d7ed0 | 2586 | |
0451c93c MS |
2587 | if (off >= (bfd_vma) -2) |
2588 | abort (); | |
2589 | ||
470b557a | 2590 | relocation = base_got->output_offset + off; |
0451c93c | 2591 | |
ae9a127f NC |
2592 | /* For @GOTENT the relocation is against the offset between |
2593 | the instruction and the symbols entry in the GOT and not | |
2594 | between the start of the GOT and the symbols entry. We | |
2595 | add the vma of the GOT to get the correct value. */ | |
5236c819 MS |
2596 | if ( r_type == R_390_GOTENT |
2597 | || r_type == R_390_GOTPLTENT) | |
470b557a | 2598 | relocation += base_got->output_section->vma; |
a85d7ed0 | 2599 | |
947216bf | 2600 | break; |
99c79b2e | 2601 | |
5236c819 MS |
2602 | case R_390_GOTOFF16: |
2603 | case R_390_GOTOFF32: | |
2604 | case R_390_GOTOFF64: | |
947216bf AM |
2605 | /* Relocation is relative to the start of the global offset |
2606 | table. */ | |
a85d7ed0 | 2607 | |
d47b13e0 AK |
2608 | if (h != NULL |
2609 | && s390_is_ifunc_symbol_p (h) | |
2610 | && h->def_regular | |
2611 | && !bfd_link_executable (info)) | |
2612 | { | |
2613 | relocation = (htab->elf.iplt->output_section->vma | |
2614 | + htab->elf.iplt->output_offset | |
2615 | + h->plt.offset | |
2616 | - htab->elf.sgot->output_section->vma); | |
2617 | goto do_relocation; | |
2618 | } | |
2619 | ||
947216bf AM |
2620 | /* Note that sgot->output_offset is not involved in this |
2621 | calculation. We always want the start of .got. If we | |
2622 | defined _GLOBAL_OFFSET_TABLE in a different way, as is | |
2623 | permitted by the ABI, we might have to change this | |
2624 | calculation. */ | |
f41345a7 | 2625 | relocation -= htab->elf.sgot->output_section->vma; |
947216bf | 2626 | break; |
a85d7ed0 | 2627 | |
947216bf | 2628 | case R_390_GOTPC: |
a85d7ed0 | 2629 | case R_390_GOTPCDBL: |
947216bf | 2630 | /* Use global offset table as symbol value. */ |
f41345a7 | 2631 | relocation = htab->elf.sgot->output_section->vma; |
b34976b6 | 2632 | unresolved_reloc = FALSE; |
947216bf | 2633 | break; |
a85d7ed0 | 2634 | |
fb798c50 | 2635 | case R_390_PLT12DBL: |
947216bf | 2636 | case R_390_PLT16DBL: |
fb798c50 | 2637 | case R_390_PLT24DBL: |
947216bf AM |
2638 | case R_390_PLT32: |
2639 | case R_390_PLT32DBL: | |
2640 | case R_390_PLT64: | |
2641 | /* Relocation is to the entry for this symbol in the | |
2642 | procedure linkage table. */ | |
a85d7ed0 | 2643 | |
947216bf AM |
2644 | /* Resolve a PLT32 reloc against a local symbol directly, |
2645 | without using the procedure linkage table. */ | |
2646 | if (h == NULL) | |
2647 | break; | |
a85d7ed0 | 2648 | |
947216bf | 2649 | if (h->plt.offset == (bfd_vma) -1 |
31db78f6 | 2650 | || (htab->elf.splt == NULL && !s390_is_ifunc_symbol_p (h))) |
947216bf AM |
2651 | { |
2652 | /* We didn't make a PLT entry for this symbol. This | |
2653 | happens when statically linking PIC code, or when | |
2654 | using -Bsymbolic. */ | |
2655 | break; | |
2656 | } | |
470b557a AK |
2657 | if (s390_is_ifunc_symbol_p (h)) |
2658 | relocation = (htab->elf.iplt->output_section->vma | |
2659 | + htab->elf.iplt->output_offset | |
2660 | + h->plt.offset); | |
2661 | else | |
2662 | relocation = (htab->elf.splt->output_section->vma | |
2663 | + htab->elf.splt->output_offset | |
2664 | + h->plt.offset); | |
b34976b6 | 2665 | unresolved_reloc = FALSE; |
26e41594 | 2666 | break; |
5236c819 MS |
2667 | |
2668 | case R_390_PLTOFF16: | |
2669 | case R_390_PLTOFF32: | |
2670 | case R_390_PLTOFF64: | |
26e41594 AM |
2671 | /* Relocation is to the entry for this symbol in the |
2672 | procedure linkage table relative to the start of the GOT. */ | |
5236c819 MS |
2673 | |
2674 | /* For local symbols or if we didn't make a PLT entry for | |
2675 | this symbol resolve the symbol directly. */ | |
31db78f6 | 2676 | if (h == NULL |
5236c819 | 2677 | || h->plt.offset == (bfd_vma) -1 |
31db78f6 | 2678 | || (htab->elf.splt == NULL && !s390_is_ifunc_symbol_p (h))) |
5236c819 | 2679 | { |
f41345a7 | 2680 | relocation -= htab->elf.sgot->output_section->vma; |
5236c819 MS |
2681 | break; |
2682 | } | |
2683 | ||
470b557a AK |
2684 | if (s390_is_ifunc_symbol_p (h)) |
2685 | relocation = (htab->elf.iplt->output_section->vma | |
2686 | + htab->elf.iplt->output_offset | |
2687 | + h->plt.offset | |
2688 | - htab->elf.sgot->output_section->vma); | |
2689 | else | |
2690 | relocation = (htab->elf.splt->output_section->vma | |
2691 | + htab->elf.splt->output_offset | |
2692 | + h->plt.offset | |
2693 | - htab->elf.sgot->output_section->vma); | |
5236c819 | 2694 | unresolved_reloc = FALSE; |
947216bf AM |
2695 | break; |
2696 | ||
947216bf | 2697 | case R_390_PC16: |
fb798c50 | 2698 | case R_390_PC12DBL: |
947216bf | 2699 | case R_390_PC16DBL: |
fb798c50 | 2700 | case R_390_PC24DBL: |
947216bf | 2701 | case R_390_PC32: |
a85d7ed0 | 2702 | case R_390_PC32DBL: |
947216bf | 2703 | case R_390_PC64: |
431e5de3 AK |
2704 | if (h != NULL |
2705 | && bfd_link_pie (info) | |
2706 | && !h->def_regular) | |
2707 | { | |
2708 | _bfd_error_handler (_("%B: `%s' non-PLT reloc for symbol defined " | |
2709 | "in shared library and accessed " | |
2710 | "from executable " | |
2711 | "(rebuild file with -fPIC ?)"), | |
2712 | input_bfd, h->root.root.string); | |
2713 | bfd_set_error (bfd_error_bad_value); | |
2714 | return FALSE; | |
2715 | } | |
99ba5125 AK |
2716 | /* The target of these relocs are instruction operands |
2717 | residing in read-only sections. We cannot emit a runtime | |
2718 | reloc for it. */ | |
2719 | if (h != NULL | |
2720 | && s390_is_ifunc_symbol_p (h) | |
2721 | && h->def_regular | |
2722 | && bfd_link_pic (info)) | |
2723 | { | |
2724 | relocation = (htab->elf.iplt->output_section->vma | |
2725 | + htab->elf.iplt->output_offset | |
2726 | + h->plt.offset); | |
2727 | goto do_relocation; | |
2728 | } | |
1a0670f3 | 2729 | /* Fall through. */ |
99ba5125 AK |
2730 | |
2731 | case R_390_8: | |
2732 | case R_390_16: | |
2733 | case R_390_32: | |
2734 | case R_390_64: | |
470b557a AK |
2735 | |
2736 | if (h != NULL | |
2737 | && s390_is_ifunc_symbol_p (h) | |
2738 | && h->def_regular) | |
2739 | { | |
d7ab4911 | 2740 | if (!bfd_link_pic (info)) |
470b557a | 2741 | { |
d7ab4911 AK |
2742 | /* For a non-shared object the symbol will not |
2743 | change. Hence we can write the address of the | |
2744 | target IPLT slot now. */ | |
470b557a AK |
2745 | relocation = (htab->elf.iplt->output_section->vma |
2746 | + htab->elf.iplt->output_offset | |
2747 | + h ->plt.offset); | |
2748 | goto do_relocation; | |
2749 | } | |
2750 | else | |
2751 | { | |
2752 | /* For shared objects a runtime relocation is needed. */ | |
2753 | ||
2754 | Elf_Internal_Rela outrel; | |
2755 | asection *sreloc; | |
2756 | ||
2757 | /* Need a dynamic relocation to get the real function | |
2758 | address. */ | |
2759 | outrel.r_offset = _bfd_elf_section_offset (output_bfd, | |
2760 | info, | |
2761 | input_section, | |
2762 | rel->r_offset); | |
2763 | if (outrel.r_offset == (bfd_vma) -1 | |
2764 | || outrel.r_offset == (bfd_vma) -2) | |
2765 | abort (); | |
2766 | ||
2767 | outrel.r_offset += (input_section->output_section->vma | |
2768 | + input_section->output_offset); | |
2769 | ||
2770 | if (h->dynindx == -1 | |
2771 | || h->forced_local | |
0e1862bb | 2772 | || bfd_link_executable (info)) |
470b557a AK |
2773 | { |
2774 | /* This symbol is resolved locally. */ | |
2775 | outrel.r_info = ELF64_R_INFO (0, R_390_IRELATIVE); | |
2776 | outrel.r_addend = (h->root.u.def.value | |
2777 | + h->root.u.def.section->output_section->vma | |
2778 | + h->root.u.def.section->output_offset); | |
2779 | } | |
2780 | else | |
2781 | { | |
2782 | outrel.r_info = ELF64_R_INFO (h->dynindx, r_type); | |
2783 | outrel.r_addend = 0; | |
2784 | } | |
2785 | ||
2786 | sreloc = htab->elf.irelifunc; | |
2787 | elf_append_rela (output_bfd, sreloc, &outrel); | |
2788 | ||
2789 | /* If this reloc is against an external symbol, we | |
2790 | do not want to fiddle with the addend. Otherwise, | |
2791 | we need to include the symbol value so that it | |
2792 | becomes an addend for the dynamic reloc. For an | |
2793 | internal symbol, we have updated addend. */ | |
2794 | continue; | |
2795 | } | |
2796 | } | |
2797 | ||
b1e24c02 | 2798 | if ((input_section->flags & SEC_ALLOC) == 0) |
ec338859 AM |
2799 | break; |
2800 | ||
0e1862bb | 2801 | if ((bfd_link_pic (info) |
82058a73 MS |
2802 | && (h == NULL |
2803 | || ELF_ST_VISIBILITY (h->other) == STV_DEFAULT | |
2804 | || h->root.type != bfd_link_hash_undefweak) | |
0451c93c | 2805 | && ((r_type != R_390_PC16 |
fb798c50 | 2806 | && r_type != R_390_PC12DBL |
0451c93c | 2807 | && r_type != R_390_PC16DBL |
fb798c50 | 2808 | && r_type != R_390_PC24DBL |
0451c93c MS |
2809 | && r_type != R_390_PC32 |
2810 | && r_type != R_390_PC32DBL | |
2811 | && r_type != R_390_PC64) | |
8c21ca21 | 2812 | || !SYMBOL_CALLS_LOCAL (info, h))) |
64285810 | 2813 | || (ELIMINATE_COPY_RELOCS |
0e1862bb | 2814 | && !bfd_link_pic (info) |
0451c93c MS |
2815 | && h != NULL |
2816 | && h->dynindx != -1 | |
f5385ebf AM |
2817 | && !h->non_got_ref |
2818 | && ((h->def_dynamic | |
2819 | && !h->def_regular) | |
0451c93c MS |
2820 | || h->root.type == bfd_link_hash_undefweak |
2821 | || h->root.type == bfd_link_hash_undefined))) | |
947216bf AM |
2822 | { |
2823 | Elf_Internal_Rela outrel; | |
b34976b6 | 2824 | bfd_boolean skip, relocate; |
0451c93c | 2825 | asection *sreloc; |
947216bf | 2826 | bfd_byte *loc; |
a85d7ed0 | 2827 | |
947216bf AM |
2828 | /* When generating a shared object, these relocations |
2829 | are copied into the output file to be resolved at run | |
2830 | time. */ | |
b34976b6 AM |
2831 | skip = FALSE; |
2832 | relocate = FALSE; | |
a85d7ed0 | 2833 | |
c629eae0 JJ |
2834 | outrel.r_offset = |
2835 | _bfd_elf_section_offset (output_bfd, info, input_section, | |
2836 | rel->r_offset); | |
2837 | if (outrel.r_offset == (bfd_vma) -1) | |
b34976b6 | 2838 | skip = TRUE; |
0bb2d96a | 2839 | else if (outrel.r_offset == (bfd_vma) -2) |
b34976b6 | 2840 | skip = TRUE, relocate = TRUE; |
a85d7ed0 | 2841 | |
947216bf AM |
2842 | outrel.r_offset += (input_section->output_section->vma |
2843 | + input_section->output_offset); | |
a85d7ed0 | 2844 | |
947216bf | 2845 | if (skip) |
0bb2d96a | 2846 | memset (&outrel, 0, sizeof outrel); |
947216bf | 2847 | else if (h != NULL |
0451c93c MS |
2848 | && h->dynindx != -1 |
2849 | && (r_type == R_390_PC16 | |
fb798c50 | 2850 | || r_type == R_390_PC12DBL |
0451c93c | 2851 | || r_type == R_390_PC16DBL |
fb798c50 | 2852 | || r_type == R_390_PC24DBL |
0451c93c MS |
2853 | || r_type == R_390_PC32 |
2854 | || r_type == R_390_PC32DBL | |
2855 | || r_type == R_390_PC64 | |
0e1862bb | 2856 | || !bfd_link_pic (info) |
8c21ca21 | 2857 | || !SYMBOLIC_BIND (info, h) |
f5385ebf | 2858 | || !h->def_regular)) |
947216bf AM |
2859 | { |
2860 | outrel.r_info = ELF64_R_INFO (h->dynindx, r_type); | |
27018c3f | 2861 | outrel.r_addend = rel->r_addend; |
947216bf AM |
2862 | } |
2863 | else | |
2864 | { | |
0451c93c | 2865 | /* This symbol is local, or marked to become local. */ |
90ced0dd | 2866 | outrel.r_addend = relocation + rel->r_addend; |
b5727d75 MS |
2867 | if (r_type == R_390_64) |
2868 | { | |
2869 | relocate = TRUE; | |
2870 | outrel.r_info = ELF64_R_INFO (0, R_390_RELATIVE); | |
b5727d75 MS |
2871 | } |
2872 | else | |
2873 | { | |
2874 | long sindx; | |
2875 | ||
90ced0dd | 2876 | if (bfd_is_abs_section (sec)) |
b5727d75 MS |
2877 | sindx = 0; |
2878 | else if (sec == NULL || sec->owner == NULL) | |
2879 | { | |
2880 | bfd_set_error(bfd_error_bad_value); | |
2881 | return FALSE; | |
2882 | } | |
2883 | else | |
2884 | { | |
2885 | asection *osec; | |
2886 | ||
2887 | osec = sec->output_section; | |
2888 | sindx = elf_section_data (osec)->dynindx; | |
74541ad4 AM |
2889 | |
2890 | if (sindx == 0) | |
2891 | { | |
2892 | osec = htab->elf.text_index_section; | |
2893 | sindx = elf_section_data (osec)->dynindx; | |
2894 | } | |
2895 | BFD_ASSERT (sindx != 0); | |
90ced0dd MS |
2896 | |
2897 | /* We are turning this relocation into one | |
2898 | against a section symbol, so subtract out | |
2899 | the output section's address but not the | |
2900 | offset of the input section in the output | |
2901 | section. */ | |
90ced0dd | 2902 | outrel.r_addend -= osec->vma; |
b5727d75 MS |
2903 | } |
2904 | outrel.r_info = ELF64_R_INFO (sindx, r_type); | |
b5727d75 | 2905 | } |
0451c93c | 2906 | } |
a85d7ed0 | 2907 | |
0451c93c MS |
2908 | sreloc = elf_section_data (input_section)->sreloc; |
2909 | if (sreloc == NULL) | |
2910 | abort (); | |
2911 | ||
947216bf AM |
2912 | loc = sreloc->contents; |
2913 | loc += sreloc->reloc_count++ * sizeof (Elf64_External_Rela); | |
2914 | bfd_elf64_swap_reloca_out (output_bfd, &outrel, loc); | |
a85d7ed0 | 2915 | |
947216bf AM |
2916 | /* If this reloc is against an external symbol, we do |
2917 | not want to fiddle with the addend. Otherwise, we | |
2918 | need to include the symbol value so that it becomes | |
2919 | an addend for the dynamic reloc. */ | |
2920 | if (! relocate) | |
2921 | continue; | |
2922 | } | |
a85d7ed0 | 2923 | |
947216bf | 2924 | break; |
a85d7ed0 | 2925 | |
69fc87f1 MS |
2926 | /* Relocations for tls literal pool entries. */ |
2927 | case R_390_TLS_IE64: | |
0e1862bb | 2928 | if (bfd_link_pic (info)) |
69fc87f1 MS |
2929 | { |
2930 | Elf_Internal_Rela outrel; | |
2931 | asection *sreloc; | |
2932 | bfd_byte *loc; | |
2933 | ||
2934 | outrel.r_offset = rel->r_offset | |
2935 | + input_section->output_section->vma | |
2936 | + input_section->output_offset; | |
2937 | outrel.r_info = ELF64_R_INFO (0, R_390_RELATIVE); | |
2938 | sreloc = elf_section_data (input_section)->sreloc; | |
2939 | if (sreloc == NULL) | |
2940 | abort (); | |
2941 | loc = sreloc->contents; | |
2942 | loc += sreloc->reloc_count++ * sizeof (Elf64_External_Rela); | |
2943 | bfd_elf64_swap_reloc_out (output_bfd, &outrel, loc); | |
2944 | } | |
ae9a127f | 2945 | /* Fall through. */ |
69fc87f1 MS |
2946 | |
2947 | case R_390_TLS_GD64: | |
2948 | case R_390_TLS_GOTIE64: | |
2949 | r_type = elf_s390_tls_transition (info, r_type, h == NULL); | |
2950 | tls_type = GOT_UNKNOWN; | |
2951 | if (h == NULL && local_got_offsets) | |
2952 | tls_type = elf_s390_local_got_tls_type (input_bfd) [r_symndx]; | |
2953 | else if (h != NULL) | |
2954 | { | |
2955 | tls_type = elf_s390_hash_entry(h)->tls_type; | |
0e1862bb | 2956 | if (!bfd_link_pic (info) && h->dynindx == -1 && tls_type >= GOT_TLS_IE) |
69fc87f1 MS |
2957 | r_type = R_390_TLS_LE64; |
2958 | } | |
2959 | if (r_type == R_390_TLS_GD64 && tls_type >= GOT_TLS_IE) | |
2960 | r_type = R_390_TLS_IE64; | |
2961 | ||
2962 | if (r_type == R_390_TLS_LE64) | |
2963 | { | |
2964 | /* This relocation gets optimized away by the local exec | |
2965 | access optimization. */ | |
2966 | BFD_ASSERT (! unresolved_reloc); | |
2967 | bfd_put_64 (output_bfd, -tpoff (info, relocation), | |
2968 | contents + rel->r_offset); | |
2969 | continue; | |
2970 | } | |
2971 | ||
f41345a7 | 2972 | if (htab->elf.sgot == NULL) |
69fc87f1 MS |
2973 | abort (); |
2974 | ||
2975 | if (h != NULL) | |
2976 | off = h->got.offset; | |
2977 | else | |
2978 | { | |
2979 | if (local_got_offsets == NULL) | |
2980 | abort (); | |
2981 | ||
2982 | off = local_got_offsets[r_symndx]; | |
2983 | } | |
2984 | ||
2985 | emit_tls_relocs: | |
2986 | ||
2987 | if ((off & 1) != 0) | |
2988 | off &= ~1; | |
26e41594 | 2989 | else |
69fc87f1 MS |
2990 | { |
2991 | Elf_Internal_Rela outrel; | |
2992 | bfd_byte *loc; | |
2993 | int dr_type, indx; | |
2994 | ||
f41345a7 | 2995 | if (htab->elf.srelgot == NULL) |
69fc87f1 MS |
2996 | abort (); |
2997 | ||
f41345a7 AK |
2998 | outrel.r_offset = (htab->elf.sgot->output_section->vma |
2999 | + htab->elf.sgot->output_offset + off); | |
69fc87f1 MS |
3000 | |
3001 | indx = h && h->dynindx != -1 ? h->dynindx : 0; | |
3002 | if (r_type == R_390_TLS_GD64) | |
3003 | dr_type = R_390_TLS_DTPMOD; | |
3004 | else | |
3005 | dr_type = R_390_TLS_TPOFF; | |
3006 | if (dr_type == R_390_TLS_TPOFF && indx == 0) | |
3007 | outrel.r_addend = relocation - dtpoff_base (info); | |
3008 | else | |
3009 | outrel.r_addend = 0; | |
3010 | outrel.r_info = ELF64_R_INFO (indx, dr_type); | |
f41345a7 AK |
3011 | loc = htab->elf.srelgot->contents; |
3012 | loc += htab->elf.srelgot->reloc_count++ | |
69fc87f1 MS |
3013 | * sizeof (Elf64_External_Rela); |
3014 | bfd_elf64_swap_reloca_out (output_bfd, &outrel, loc); | |
3015 | ||
3016 | if (r_type == R_390_TLS_GD64) | |
3017 | { | |
3018 | if (indx == 0) | |
3019 | { | |
3020 | BFD_ASSERT (! unresolved_reloc); | |
3021 | bfd_put_64 (output_bfd, | |
3022 | relocation - dtpoff_base (info), | |
f41345a7 | 3023 | htab->elf.sgot->contents + off + GOT_ENTRY_SIZE); |
69fc87f1 MS |
3024 | } |
3025 | else | |
3026 | { | |
3027 | outrel.r_info = ELF64_R_INFO (indx, R_390_TLS_DTPOFF); | |
3028 | outrel.r_offset += GOT_ENTRY_SIZE; | |
3029 | outrel.r_addend = 0; | |
f41345a7 | 3030 | htab->elf.srelgot->reloc_count++; |
69fc87f1 MS |
3031 | loc += sizeof (Elf64_External_Rela); |
3032 | bfd_elf64_swap_reloca_out (output_bfd, &outrel, loc); | |
3033 | } | |
3034 | } | |
3035 | ||
3036 | if (h != NULL) | |
3037 | h->got.offset |= 1; | |
3038 | else | |
3039 | local_got_offsets[r_symndx] |= 1; | |
3040 | } | |
3041 | ||
3042 | if (off >= (bfd_vma) -2) | |
3043 | abort (); | |
3044 | if (r_type == ELF64_R_TYPE (rel->r_info)) | |
3045 | { | |
f41345a7 | 3046 | relocation = htab->elf.sgot->output_offset + off; |
69fc87f1 | 3047 | if (r_type == R_390_TLS_IE64 || r_type == R_390_TLS_IEENT) |
f41345a7 | 3048 | relocation += htab->elf.sgot->output_section->vma; |
69fc87f1 MS |
3049 | unresolved_reloc = FALSE; |
3050 | } | |
3051 | else | |
3052 | { | |
f41345a7 | 3053 | bfd_put_64 (output_bfd, htab->elf.sgot->output_offset + off, |
69fc87f1 MS |
3054 | contents + rel->r_offset); |
3055 | continue; | |
3056 | } | |
3057 | break; | |
3058 | ||
3059 | case R_390_TLS_GOTIE12: | |
bd1ea41b | 3060 | case R_390_TLS_GOTIE20: |
69fc87f1 MS |
3061 | case R_390_TLS_IEENT: |
3062 | if (h == NULL) | |
3063 | { | |
3064 | if (local_got_offsets == NULL) | |
3065 | abort(); | |
3066 | off = local_got_offsets[r_symndx]; | |
0e1862bb | 3067 | if (bfd_link_pic (info)) |
69fc87f1 MS |
3068 | goto emit_tls_relocs; |
3069 | } | |
3070 | else | |
3071 | { | |
3072 | off = h->got.offset; | |
3073 | tls_type = elf_s390_hash_entry(h)->tls_type; | |
0e1862bb | 3074 | if (bfd_link_pic (info) || h->dynindx != -1 || tls_type < GOT_TLS_IE) |
69fc87f1 MS |
3075 | goto emit_tls_relocs; |
3076 | } | |
3077 | ||
f41345a7 | 3078 | if (htab->elf.sgot == NULL) |
69fc87f1 MS |
3079 | abort (); |
3080 | ||
3081 | BFD_ASSERT (! unresolved_reloc); | |
3082 | bfd_put_64 (output_bfd, -tpoff (info, relocation), | |
f41345a7 AK |
3083 | htab->elf.sgot->contents + off); |
3084 | relocation = htab->elf.sgot->output_offset + off; | |
69fc87f1 | 3085 | if (r_type == R_390_TLS_IEENT) |
f41345a7 | 3086 | relocation += htab->elf.sgot->output_section->vma; |
69fc87f1 MS |
3087 | unresolved_reloc = FALSE; |
3088 | break; | |
3089 | ||
3090 | case R_390_TLS_LDM64: | |
0e1862bb | 3091 | if (! bfd_link_pic (info)) |
69fc87f1 MS |
3092 | /* The literal pool entry this relocation refers to gets ignored |
3093 | by the optimized code of the local exec model. Do nothing | |
3094 | and the value will turn out zero. */ | |
3095 | continue; | |
3096 | ||
f41345a7 | 3097 | if (htab->elf.sgot == NULL) |
69fc87f1 MS |
3098 | abort (); |
3099 | ||
3100 | off = htab->tls_ldm_got.offset; | |
3101 | if (off & 1) | |
3102 | off &= ~1; | |
3103 | else | |
3104 | { | |
3105 | Elf_Internal_Rela outrel; | |
3106 | bfd_byte *loc; | |
3107 | ||
f41345a7 | 3108 | if (htab->elf.srelgot == NULL) |
69fc87f1 MS |
3109 | abort (); |
3110 | ||
f41345a7 AK |
3111 | outrel.r_offset = (htab->elf.sgot->output_section->vma |
3112 | + htab->elf.sgot->output_offset + off); | |
69fc87f1 MS |
3113 | |
3114 | bfd_put_64 (output_bfd, 0, | |
f41345a7 | 3115 | htab->elf.sgot->contents + off + GOT_ENTRY_SIZE); |
69fc87f1 MS |
3116 | outrel.r_info = ELF64_R_INFO (0, R_390_TLS_DTPMOD); |
3117 | outrel.r_addend = 0; | |
f41345a7 AK |
3118 | loc = htab->elf.srelgot->contents; |
3119 | loc += htab->elf.srelgot->reloc_count++ | |
69fc87f1 MS |
3120 | * sizeof (Elf64_External_Rela); |
3121 | bfd_elf64_swap_reloca_out (output_bfd, &outrel, loc); | |
3122 | htab->tls_ldm_got.offset |= 1; | |
3123 | } | |
f41345a7 | 3124 | relocation = htab->elf.sgot->output_offset + off; |
26e41594 | 3125 | unresolved_reloc = FALSE; |
69fc87f1 MS |
3126 | break; |
3127 | ||
3128 | case R_390_TLS_LE64: | |
3cbc1e5e | 3129 | if (bfd_link_dll (info)) |
69fc87f1 MS |
3130 | { |
3131 | /* Linking a shared library with non-fpic code requires | |
3132 | a R_390_TLS_TPOFF relocation. */ | |
3133 | Elf_Internal_Rela outrel; | |
3134 | asection *sreloc; | |
3135 | bfd_byte *loc; | |
3136 | int indx; | |
3137 | ||
3138 | outrel.r_offset = rel->r_offset | |
3139 | + input_section->output_section->vma | |
3140 | + input_section->output_offset; | |
3141 | if (h != NULL && h->dynindx != -1) | |
3142 | indx = h->dynindx; | |
3143 | else | |
3144 | indx = 0; | |
3145 | outrel.r_info = ELF64_R_INFO (indx, R_390_TLS_TPOFF); | |
3146 | if (indx == 0) | |
3147 | outrel.r_addend = relocation - dtpoff_base (info); | |
3148 | else | |
3149 | outrel.r_addend = 0; | |
3150 | sreloc = elf_section_data (input_section)->sreloc; | |
3151 | if (sreloc == NULL) | |
3152 | abort (); | |
3153 | loc = sreloc->contents; | |
3154 | loc += sreloc->reloc_count++ * sizeof (Elf64_External_Rela); | |
3155 | bfd_elf64_swap_reloca_out (output_bfd, &outrel, loc); | |
3156 | } | |
3157 | else | |
3158 | { | |
3159 | BFD_ASSERT (! unresolved_reloc); | |
3160 | bfd_put_64 (output_bfd, -tpoff (info, relocation), | |
3161 | contents + rel->r_offset); | |
3162 | } | |
3163 | continue; | |
3164 | ||
3165 | case R_390_TLS_LDO64: | |
0e1862bb | 3166 | if (bfd_link_pic (info) || (input_section->flags & SEC_DEBUGGING)) |
69fc87f1 MS |
3167 | relocation -= dtpoff_base (info); |
3168 | else | |
3169 | /* When converting LDO to LE, we must negate. */ | |
3170 | relocation = -tpoff (info, relocation); | |
3171 | break; | |
3172 | ||
3173 | /* Relocations for tls instructions. */ | |
3174 | case R_390_TLS_LOAD: | |
3175 | case R_390_TLS_GDCALL: | |
3176 | case R_390_TLS_LDCALL: | |
3177 | tls_type = GOT_UNKNOWN; | |
3178 | if (h == NULL && local_got_offsets) | |
3179 | tls_type = elf_s390_local_got_tls_type (input_bfd) [r_symndx]; | |
3180 | else if (h != NULL) | |
3181 | tls_type = elf_s390_hash_entry(h)->tls_type; | |
3182 | ||
3183 | if (tls_type == GOT_TLS_GD) | |
3184 | continue; | |
3185 | ||
3186 | if (r_type == R_390_TLS_LOAD) | |
3187 | { | |
0e1862bb | 3188 | if (!bfd_link_pic (info) && (h == NULL || h->dynindx == -1)) |
69fc87f1 MS |
3189 | { |
3190 | /* IE->LE transition. Four valid cases: | |
3191 | lg %rx,(0,%ry) -> sllg %rx,%ry,0 | |
3192 | lg %rx,(%ry,0) -> sllg %rx,%ry,0 | |
3193 | lg %rx,(%ry,%r12) -> sllg %rx,%ry,0 | |
3194 | lg %rx,(%r12,%ry) -> sllg %rx,%ry,0 */ | |
3195 | unsigned int insn0, insn1, ry; | |
3196 | ||
3197 | insn0 = bfd_get_32 (input_bfd, contents + rel->r_offset); | |
3198 | insn1 = bfd_get_16 (input_bfd, contents + rel->r_offset + 4); | |
3199 | if (insn1 != 0x0004) | |
3200 | invalid_tls_insn (input_bfd, input_section, rel); | |
3201 | ry = 0; | |
3202 | if ((insn0 & 0xff00f000) == 0xe3000000) | |
3203 | /* lg %rx,0(%ry,0) -> sllg %rx,%ry,0 */ | |
3204 | ry = (insn0 & 0x000f0000); | |
3205 | else if ((insn0 & 0xff0f0000) == 0xe3000000) | |
3206 | /* lg %rx,0(0,%ry) -> sllg %rx,%ry,0 */ | |
3207 | ry = (insn0 & 0x0000f000) << 4; | |
3208 | else if ((insn0 & 0xff00f000) == 0xe300c000) | |
3209 | /* lg %rx,0(%ry,%r12) -> sllg %rx,%ry,0 */ | |
3210 | ry = (insn0 & 0x000f0000); | |
3211 | else if ((insn0 & 0xff0f0000) == 0xe30c0000) | |
3212 | /* lg %rx,0(%r12,%ry) -> sllg %rx,%ry,0 */ | |
3213 | ry = (insn0 & 0x0000f000) << 4; | |
3214 | else | |
3215 | invalid_tls_insn (input_bfd, input_section, rel); | |
3216 | insn0 = 0xeb000000 | (insn0 & 0x00f00000) | ry; | |
3217 | insn1 = 0x000d; | |
3218 | bfd_put_32 (output_bfd, insn0, contents + rel->r_offset); | |
3219 | bfd_put_16 (output_bfd, insn1, contents + rel->r_offset + 4); | |
3220 | } | |
3221 | } | |
3222 | else if (r_type == R_390_TLS_GDCALL) | |
3223 | { | |
3224 | unsigned int insn0, insn1; | |
3225 | ||
3226 | insn0 = bfd_get_32 (input_bfd, contents + rel->r_offset); | |
3227 | insn1 = bfd_get_16 (input_bfd, contents + rel->r_offset + 4); | |
3228 | if ((insn0 & 0xffff0000) != 0xc0e50000) | |
3229 | invalid_tls_insn (input_bfd, input_section, rel); | |
0e1862bb | 3230 | if (!bfd_link_pic (info) && (h == NULL || h->dynindx == -1)) |
69fc87f1 MS |
3231 | { |
3232 | /* GD->LE transition. | |
3233 | brasl %r14,__tls_get_addr@plt -> brcl 0,. */ | |
3234 | insn0 = 0xc0040000; | |
3235 | insn1 = 0x0000; | |
3236 | } | |
3237 | else | |
3238 | { | |
3239 | /* GD->IE transition. | |
3240 | brasl %r14,__tls_get_addr@plt -> lg %r2,0(%r2,%r12) */ | |
3241 | insn0 = 0xe322c000; | |
3242 | insn1 = 0x0004; | |
3243 | } | |
3244 | bfd_put_32 (output_bfd, insn0, contents + rel->r_offset); | |
3245 | bfd_put_16 (output_bfd, insn1, contents + rel->r_offset + 4); | |
3246 | } | |
3247 | else if (r_type == R_390_TLS_LDCALL) | |
3248 | { | |
0e1862bb | 3249 | if (!bfd_link_pic (info)) |
69fc87f1 MS |
3250 | { |
3251 | unsigned int insn0, insn1; | |
3252 | ||
3253 | insn0 = bfd_get_32 (input_bfd, contents + rel->r_offset); | |
3254 | insn1 = bfd_get_16 (input_bfd, contents + rel->r_offset + 4); | |
3255 | if ((insn0 & 0xffff0000) != 0xc0e50000) | |
3256 | invalid_tls_insn (input_bfd, input_section, rel); | |
3257 | /* LD->LE transition. | |
3258 | brasl %r14,__tls_get_addr@plt -> brcl 0,. */ | |
3259 | insn0 = 0xc0040000; | |
3260 | insn1 = 0x0000; | |
3261 | bfd_put_32 (output_bfd, insn0, contents + rel->r_offset); | |
3262 | bfd_put_16 (output_bfd, insn1, contents + rel->r_offset + 4); | |
3263 | } | |
3264 | } | |
3265 | continue; | |
3266 | ||
947216bf AM |
3267 | default: |
3268 | break; | |
3269 | } | |
a85d7ed0 | 3270 | |
239e1f3a AM |
3271 | /* Dynamic relocs are not propagated for SEC_DEBUGGING sections |
3272 | because such sections are not SEC_ALLOC and thus ld.so will | |
3273 | not process them. */ | |
0451c93c | 3274 | if (unresolved_reloc |
239e1f3a | 3275 | && !((input_section->flags & SEC_DEBUGGING) != 0 |
1d5316ab AM |
3276 | && h->def_dynamic) |
3277 | && _bfd_elf_section_offset (output_bfd, info, input_section, | |
3278 | rel->r_offset) != (bfd_vma) -1) | |
4eca0228 | 3279 | _bfd_error_handler |
695344c0 | 3280 | /* xgettext:c-format */ |
843fe662 | 3281 | (_("%B(%A+0x%lx): unresolvable %s relocation against symbol `%s'"), |
d003868e AM |
3282 | input_bfd, |
3283 | input_section, | |
0451c93c | 3284 | (long) rel->r_offset, |
843fe662 | 3285 | howto->name, |
0451c93c MS |
3286 | h->root.root.string); |
3287 | ||
470b557a AK |
3288 | do_relocation: |
3289 | ||
fb798c50 AK |
3290 | /* When applying a 24 bit reloc we need to start one byte |
3291 | earlier. Otherwise the 32 bit get/put bfd operations might | |
3292 | access a byte after the actual section. */ | |
3293 | if (r_type == R_390_PC24DBL | |
3294 | || r_type == R_390_PLT24DBL) | |
3295 | rel->r_offset--; | |
3296 | ||
bd1ea41b MS |
3297 | if (r_type == R_390_20 |
3298 | || r_type == R_390_GOT20 | |
3299 | || r_type == R_390_GOTPLT20 | |
3300 | || r_type == R_390_TLS_GOTIE20) | |
3301 | { | |
3302 | relocation += rel->r_addend; | |
3303 | relocation = (relocation&0xfff) << 8 | (relocation&0xff000) >> 12; | |
3304 | r = _bfd_final_link_relocate (howto, input_bfd, input_section, | |
3305 | contents, rel->r_offset, | |
3306 | relocation, 0); | |
3307 | } | |
3308 | else | |
3309 | r = _bfd_final_link_relocate (howto, input_bfd, input_section, | |
a85d7ed0 NC |
3310 | contents, rel->r_offset, |
3311 | relocation, rel->r_addend); | |
3312 | ||
3313 | if (r != bfd_reloc_ok) | |
3314 | { | |
0451c93c | 3315 | const char *name; |
ec338859 | 3316 | |
0451c93c MS |
3317 | if (h != NULL) |
3318 | name = h->root.root.string; | |
3319 | else | |
a85d7ed0 | 3320 | { |
0451c93c MS |
3321 | name = bfd_elf_string_from_elf_section (input_bfd, |
3322 | symtab_hdr->sh_link, | |
3323 | sym->st_name); | |
3324 | if (name == NULL) | |
b34976b6 | 3325 | return FALSE; |
0451c93c MS |
3326 | if (*name == '\0') |
3327 | name = bfd_section_name (input_bfd, sec); | |
3328 | } | |
ec338859 | 3329 | |
0451c93c | 3330 | if (r == bfd_reloc_overflow) |
1a72702b AM |
3331 | (*info->callbacks->reloc_overflow) |
3332 | (info, (h ? &h->root : NULL), name, howto->name, | |
3333 | (bfd_vma) 0, input_bfd, input_section, rel->r_offset); | |
0451c93c MS |
3334 | else |
3335 | { | |
4eca0228 | 3336 | _bfd_error_handler |
695344c0 | 3337 | /* xgettext:c-format */ |
d003868e AM |
3338 | (_("%B(%A+0x%lx): reloc against `%s': error %d"), |
3339 | input_bfd, input_section, | |
0451c93c | 3340 | (long) rel->r_offset, name, (int) r); |
b34976b6 | 3341 | return FALSE; |
a85d7ed0 NC |
3342 | } |
3343 | } | |
3344 | } | |
3345 | ||
b34976b6 | 3346 | return TRUE; |
a85d7ed0 NC |
3347 | } |
3348 | ||
470b557a AK |
3349 | /* Generate the PLT slots together with the dynamic relocations needed |
3350 | for IFUNC symbols. */ | |
3351 | ||
3352 | static void | |
3353 | elf_s390_finish_ifunc_symbol (bfd *output_bfd, | |
3354 | struct bfd_link_info *info, | |
3355 | struct elf_link_hash_entry *h, | |
3356 | struct elf_s390_link_hash_table *htab, | |
3357 | bfd_vma plt_offset, | |
3358 | bfd_vma resolver_address) | |
3359 | { | |
3360 | bfd_vma plt_index; | |
3361 | bfd_vma got_offset; | |
3362 | Elf_Internal_Rela rela; | |
3363 | bfd_byte *loc; | |
3364 | asection *plt, *gotplt, *relplt; | |
3365 | ||
3366 | if (htab->elf.iplt == NULL | |
3367 | || htab->elf.igotplt == NULL | |
3368 | || htab->elf.irelplt == NULL) | |
3369 | abort (); | |
3370 | ||
3371 | /* Index of the PLT slot within iplt section. */ | |
3372 | plt_index = plt_offset / PLT_ENTRY_SIZE; | |
3373 | plt = htab->elf.iplt; | |
3374 | /* Offset into the igot.plt section. */ | |
3375 | got_offset = plt_index * GOT_ENTRY_SIZE; | |
3376 | gotplt = htab->elf.igotplt; | |
3377 | relplt = htab->elf.irelplt; | |
3378 | ||
3379 | /* Fill in the blueprint of a PLT. */ | |
3380 | memcpy (plt->contents + plt_offset, elf_s390x_plt_entry, | |
3381 | PLT_ENTRY_SIZE); | |
3382 | ||
3383 | /* Fixup the relative address to the GOT entry */ | |
3384 | bfd_put_32 (output_bfd, | |
3385 | (gotplt->output_section->vma + | |
3386 | gotplt->output_offset + got_offset | |
3387 | - (plt->output_section->vma + | |
3388 | plt->output_offset + | |
3389 | plt_offset))/2, | |
3390 | plt->contents + plt_offset + 2); | |
3391 | /* Fixup the relative branch to PLT 0 */ | |
3392 | bfd_put_32 (output_bfd, - (plt->output_offset + | |
3393 | (PLT_ENTRY_SIZE * plt_index) + 22)/2, | |
3394 | plt->contents + plt_offset + 24); | |
3395 | /* Fixup offset into .rela.plt section. */ | |
3396 | bfd_put_32 (output_bfd, relplt->output_offset + | |
3397 | plt_index * sizeof (Elf64_External_Rela), | |
3398 | plt->contents + plt_offset + 28); | |
3399 | ||
3400 | /* Fill in the entry in the global offset table. | |
3401 | Points to instruction after GOT offset. */ | |
3402 | bfd_put_64 (output_bfd, | |
3403 | (plt->output_section->vma | |
3404 | + plt->output_offset | |
3405 | + plt_offset | |
3406 | + 14), | |
3407 | gotplt->contents + got_offset); | |
3408 | ||
3409 | /* Fill in the entry in the .rela.plt section. */ | |
3410 | rela.r_offset = (gotplt->output_section->vma | |
3411 | + gotplt->output_offset | |
3412 | + got_offset); | |
3413 | ||
3414 | if (!h | |
3415 | || h->dynindx == -1 | |
0e1862bb | 3416 | || ((bfd_link_executable (info) |
470b557a AK |
3417 | || ELF_ST_VISIBILITY (h->other) != STV_DEFAULT) |
3418 | && h->def_regular)) | |
3419 | { | |
3420 | /* The symbol can be locally resolved. */ | |
3421 | rela.r_info = ELF64_R_INFO (0, R_390_IRELATIVE); | |
3422 | rela.r_addend = resolver_address; | |
3423 | } | |
3424 | else | |
3425 | { | |
3426 | rela.r_info = ELF64_R_INFO (h->dynindx, R_390_JMP_SLOT); | |
3427 | rela.r_addend = 0; | |
3428 | } | |
3429 | ||
3430 | loc = relplt->contents + plt_index * sizeof (Elf64_External_Rela); | |
3431 | bfd_elf64_swap_reloca_out (output_bfd, &rela, loc); | |
3432 | } | |
3433 | ||
3434 | ||
a85d7ed0 NC |
3435 | /* Finish up dynamic symbol handling. We set the contents of various |
3436 | dynamic sections here. */ | |
3437 | ||
b34976b6 | 3438 | static bfd_boolean |
4dfe6ac6 NC |
3439 | elf_s390_finish_dynamic_symbol (bfd *output_bfd, |
3440 | struct bfd_link_info *info, | |
3441 | struct elf_link_hash_entry *h, | |
3442 | Elf_Internal_Sym *sym) | |
a85d7ed0 | 3443 | { |
0451c93c | 3444 | struct elf_s390_link_hash_table *htab; |
470b557a | 3445 | struct elf_s390_link_hash_entry *eh = (struct elf_s390_link_hash_entry*)h; |
a85d7ed0 | 3446 | |
0451c93c | 3447 | htab = elf_s390_hash_table (info); |
4dfe6ac6 NC |
3448 | if (htab == NULL) |
3449 | return FALSE; | |
a85d7ed0 NC |
3450 | |
3451 | if (h->plt.offset != (bfd_vma) -1) | |
3452 | { | |
a85d7ed0 | 3453 | bfd_vma plt_index; |
0451c93c MS |
3454 | bfd_vma got_offset; |
3455 | Elf_Internal_Rela rela; | |
947216bf | 3456 | bfd_byte *loc; |
a85d7ed0 NC |
3457 | |
3458 | /* This symbol has an entry in the procedure linkage table. Set | |
947216bf | 3459 | it up. */ |
0a511368 | 3460 | if (s390_is_ifunc_symbol_p (h) && h->def_regular) |
470b557a | 3461 | { |
0a511368 AK |
3462 | elf_s390_finish_ifunc_symbol (output_bfd, info, h, |
3463 | htab, h->plt.offset, | |
3464 | eh->ifunc_resolver_address + | |
3465 | eh->ifunc_resolver_section->output_offset + | |
3466 | eh->ifunc_resolver_section->output_section->vma); | |
3467 | ||
3468 | /* Do not return yet. Handling of explicit GOT slots of | |
3469 | IFUNC symbols is below. */ | |
470b557a AK |
3470 | } |
3471 | else | |
3472 | { | |
3473 | if (h->dynindx == -1 | |
3474 | || htab->elf.splt == NULL | |
3475 | || htab->elf.sgotplt == NULL | |
3476 | || htab->elf.srelplt == NULL) | |
3477 | abort (); | |
a85d7ed0 | 3478 | |
470b557a AK |
3479 | /* Calc. index no. |
3480 | Current offset - size first entry / entry size. */ | |
3481 | plt_index = (h->plt.offset - PLT_FIRST_ENTRY_SIZE) / PLT_ENTRY_SIZE; | |
a85d7ed0 | 3482 | |
470b557a AK |
3483 | /* Offset in GOT is PLT index plus GOT headers(3) times 8, |
3484 | addr & GOT addr. */ | |
3485 | got_offset = (plt_index + 3) * GOT_ENTRY_SIZE; | |
a85d7ed0 | 3486 | |
470b557a AK |
3487 | /* Fill in the blueprint of a PLT. */ |
3488 | memcpy (htab->elf.splt->contents + h->plt.offset, elf_s390x_plt_entry, | |
3489 | PLT_ENTRY_SIZE); | |
3490 | ||
3491 | /* Fixup the relative address to the GOT entry */ | |
3492 | bfd_put_32 (output_bfd, | |
3493 | (htab->elf.sgotplt->output_section->vma + | |
3494 | htab->elf.sgotplt->output_offset + got_offset | |
3495 | - (htab->elf.splt->output_section->vma + | |
3496 | htab->elf.splt->output_offset + | |
3497 | h->plt.offset))/2, | |
3498 | htab->elf.splt->contents + h->plt.offset + 2); | |
3499 | /* Fixup the relative branch to PLT 0 */ | |
3500 | bfd_put_32 (output_bfd, - (PLT_FIRST_ENTRY_SIZE + | |
3501 | (PLT_ENTRY_SIZE * plt_index) + 22)/2, | |
3502 | htab->elf.splt->contents + h->plt.offset + 24); | |
3503 | /* Fixup offset into .rela.plt section. */ | |
3504 | bfd_put_32 (output_bfd, plt_index * sizeof (Elf64_External_Rela), | |
3505 | htab->elf.splt->contents + h->plt.offset + 28); | |
3506 | ||
3507 | /* Fill in the entry in the global offset table. | |
3508 | Points to instruction after GOT offset. */ | |
3509 | bfd_put_64 (output_bfd, | |
3510 | (htab->elf.splt->output_section->vma | |
3511 | + htab->elf.splt->output_offset | |
3512 | + h->plt.offset | |
3513 | + 14), | |
3514 | htab->elf.sgotplt->contents + got_offset); | |
3515 | ||
3516 | /* Fill in the entry in the .rela.plt section. */ | |
3517 | rela.r_offset = (htab->elf.sgotplt->output_section->vma | |
3518 | + htab->elf.sgotplt->output_offset | |
3519 | + got_offset); | |
3520 | rela.r_info = ELF64_R_INFO (h->dynindx, R_390_JMP_SLOT); | |
3521 | rela.r_addend = 0; | |
3522 | loc = htab->elf.srelplt->contents + plt_index * | |
3523 | sizeof (Elf64_External_Rela); | |
3524 | bfd_elf64_swap_reloca_out (output_bfd, &rela, loc); | |
3525 | ||
3526 | if (!h->def_regular) | |
3527 | { | |
3528 | /* Mark the symbol as undefined, rather than as defined in | |
3529 | the .plt section. Leave the value alone. This is a clue | |
3530 | for the dynamic linker, to make function pointer | |
3531 | comparisons work between an application and shared | |
3532 | library. */ | |
3533 | sym->st_shndx = SHN_UNDEF; | |
3534 | } | |
a85d7ed0 NC |
3535 | } |
3536 | } | |
3537 | ||
69fc87f1 MS |
3538 | if (h->got.offset != (bfd_vma) -1 |
3539 | && elf_s390_hash_entry(h)->tls_type != GOT_TLS_GD | |
3540 | && elf_s390_hash_entry(h)->tls_type != GOT_TLS_IE | |
3541 | && elf_s390_hash_entry(h)->tls_type != GOT_TLS_IE_NLT) | |
a85d7ed0 | 3542 | { |
a85d7ed0 | 3543 | Elf_Internal_Rela rela; |
947216bf | 3544 | bfd_byte *loc; |
a85d7ed0 NC |
3545 | |
3546 | /* This symbol has an entry in the global offset table. Set it | |
947216bf | 3547 | up. */ |
f41345a7 | 3548 | if (htab->elf.sgot == NULL || htab->elf.srelgot == NULL) |
0451c93c | 3549 | abort (); |
a85d7ed0 | 3550 | |
f41345a7 AK |
3551 | rela.r_offset = (htab->elf.sgot->output_section->vma |
3552 | + htab->elf.sgot->output_offset | |
dc810e39 | 3553 | + (h->got.offset &~ (bfd_vma) 1)); |
a85d7ed0 | 3554 | |
470b557a AK |
3555 | if (h->def_regular && s390_is_ifunc_symbol_p (h)) |
3556 | { | |
0e1862bb | 3557 | if (bfd_link_pic (info)) |
470b557a AK |
3558 | { |
3559 | /* An explicit GOT slot usage needs GLOB_DAT. If the | |
3560 | symbol references local the implicit got.iplt slot | |
3561 | will be used and the IRELATIVE reloc has been created | |
3562 | above. */ | |
3563 | goto do_glob_dat; | |
3564 | } | |
3565 | else | |
3566 | { | |
3567 | /* For non-shared objects explicit GOT slots must be | |
3568 | filled with the PLT slot address for pointer | |
3569 | equality reasons. */ | |
3570 | bfd_put_64 (output_bfd, (htab->elf.iplt->output_section->vma | |
3571 | + htab->elf.iplt->output_offset | |
3572 | + h->plt.offset), | |
3573 | htab->elf.sgot->contents + h->got.offset); | |
3574 | return TRUE; | |
3575 | } | |
3576 | } | |
0e1862bb | 3577 | else if (bfd_link_pic (info) |
ceada896 | 3578 | && SYMBOL_REFERENCES_LOCAL (info, h)) |
947216bf | 3579 | { |
470b557a AK |
3580 | /* If this is a static link, or it is a -Bsymbolic link and |
3581 | the symbol is defined locally or was forced to be local | |
3582 | because of a version file, we just want to emit a | |
3583 | RELATIVE reloc. The entry in the global offset table | |
3584 | will already have been initialized in the | |
3585 | relocate_section function. */ | |
8170f769 | 3586 | if (!(h->def_regular || ELF_COMMON_DEF_P (h))) |
8c21ca21 | 3587 | return FALSE; |
0451c93c | 3588 | BFD_ASSERT((h->got.offset & 1) != 0); |
947216bf AM |
3589 | rela.r_info = ELF64_R_INFO (0, R_390_RELATIVE); |
3590 | rela.r_addend = (h->root.u.def.value | |
3591 | + h->root.u.def.section->output_section->vma | |
3592 | + h->root.u.def.section->output_offset); | |
3593 | } | |
a85d7ed0 NC |
3594 | else |
3595 | { | |
3596 | BFD_ASSERT((h->got.offset & 1) == 0); | |
ceada896 | 3597 | do_glob_dat: |
f41345a7 | 3598 | bfd_put_64 (output_bfd, (bfd_vma) 0, htab->elf.sgot->contents + h->got.offset); |
a85d7ed0 | 3599 | rela.r_info = ELF64_R_INFO (h->dynindx, R_390_GLOB_DAT); |
947216bf AM |
3600 | rela.r_addend = 0; |
3601 | } | |
a85d7ed0 | 3602 | |
f41345a7 AK |
3603 | loc = htab->elf.srelgot->contents; |
3604 | loc += htab->elf.srelgot->reloc_count++ * sizeof (Elf64_External_Rela); | |
0451c93c | 3605 | bfd_elf64_swap_reloca_out (output_bfd, &rela, loc); |
a85d7ed0 NC |
3606 | } |
3607 | ||
f5385ebf | 3608 | if (h->needs_copy) |
a85d7ed0 | 3609 | { |
a85d7ed0 | 3610 | Elf_Internal_Rela rela; |
5474d94f | 3611 | asection *s; |
947216bf | 3612 | bfd_byte *loc; |
a85d7ed0 NC |
3613 | |
3614 | /* This symbols needs a copy reloc. Set it up. */ | |
3615 | ||
0451c93c MS |
3616 | if (h->dynindx == -1 |
3617 | || (h->root.type != bfd_link_hash_defined | |
3618 | && h->root.type != bfd_link_hash_defweak) | |
9d19e4fd | 3619 | || htab->elf.srelbss == NULL) |
0451c93c | 3620 | abort (); |
a85d7ed0 NC |
3621 | |
3622 | rela.r_offset = (h->root.u.def.value | |
3623 | + h->root.u.def.section->output_section->vma | |
3624 | + h->root.u.def.section->output_offset); | |
3625 | rela.r_info = ELF64_R_INFO (h->dynindx, R_390_COPY); | |
3626 | rela.r_addend = 0; | |
afbf7e8e | 3627 | if (h->root.u.def.section == htab->elf.sdynrelro) |
5474d94f AM |
3628 | s = htab->elf.sreldynrelro; |
3629 | else | |
3630 | s = htab->elf.srelbss; | |
3631 | loc = s->contents + s->reloc_count++ * sizeof (Elf64_External_Rela); | |
0451c93c | 3632 | bfd_elf64_swap_reloca_out (output_bfd, &rela, loc); |
a85d7ed0 NC |
3633 | } |
3634 | ||
3635 | /* Mark some specially defined symbols as absolute. */ | |
9637f6ef | 3636 | if (h == htab->elf.hdynamic |
22edb2f1 RS |
3637 | || h == htab->elf.hgot |
3638 | || h == htab->elf.hplt) | |
a85d7ed0 NC |
3639 | sym->st_shndx = SHN_ABS; |
3640 | ||
b34976b6 | 3641 | return TRUE; |
a85d7ed0 NC |
3642 | } |
3643 | ||
0451c93c MS |
3644 | /* Used to decide how to sort relocs in an optimal manner for the |
3645 | dynamic linker, before writing them out. */ | |
3646 | ||
3647 | static enum elf_reloc_type_class | |
7e612e98 AM |
3648 | elf_s390_reloc_type_class (const struct bfd_link_info *info ATTRIBUTE_UNUSED, |
3649 | const asection *rel_sec ATTRIBUTE_UNUSED, | |
3650 | const Elf_Internal_Rela *rela) | |
0451c93c | 3651 | { |
0f042c67 AK |
3652 | bfd *abfd = info->output_bfd; |
3653 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); | |
3654 | struct elf_s390_link_hash_table *htab = elf_s390_hash_table (info); | |
3655 | unsigned long r_symndx = ELF64_R_SYM (rela->r_info); | |
3656 | Elf_Internal_Sym sym; | |
3657 | ||
3658 | if (htab->elf.dynsym == NULL | |
3659 | || !bed->s->swap_symbol_in (abfd, | |
3660 | (htab->elf.dynsym->contents | |
3661 | + r_symndx * bed->s->sizeof_sym), | |
3662 | 0, &sym)) | |
3663 | abort (); | |
3664 | ||
3665 | /* Check relocation against STT_GNU_IFUNC symbol. */ | |
3666 | if (ELF_ST_TYPE (sym.st_info) == STT_GNU_IFUNC) | |
3667 | return reloc_class_ifunc; | |
3668 | ||
0451c93c MS |
3669 | switch ((int) ELF64_R_TYPE (rela->r_info)) |
3670 | { | |
3671 | case R_390_RELATIVE: | |
3672 | return reloc_class_relative; | |
3673 | case R_390_JMP_SLOT: | |
3674 | return reloc_class_plt; | |
3675 | case R_390_COPY: | |
3676 | return reloc_class_copy; | |
3677 | default: | |
3678 | return reloc_class_normal; | |
3679 | } | |
3680 | } | |
3681 | ||
a85d7ed0 NC |
3682 | /* Finish up the dynamic sections. */ |
3683 | ||
b34976b6 | 3684 | static bfd_boolean |
4dfe6ac6 NC |
3685 | elf_s390_finish_dynamic_sections (bfd *output_bfd, |
3686 | struct bfd_link_info *info) | |
a85d7ed0 | 3687 | { |
0451c93c | 3688 | struct elf_s390_link_hash_table *htab; |
a85d7ed0 NC |
3689 | bfd *dynobj; |
3690 | asection *sdyn; | |
470b557a AK |
3691 | bfd *ibfd; |
3692 | unsigned int i; | |
a85d7ed0 | 3693 | |
0451c93c | 3694 | htab = elf_s390_hash_table (info); |
4dfe6ac6 NC |
3695 | if (htab == NULL) |
3696 | return FALSE; | |
3697 | ||
0451c93c | 3698 | dynobj = htab->elf.dynobj; |
3d4d4302 | 3699 | sdyn = bfd_get_linker_section (dynobj, ".dynamic"); |
a85d7ed0 | 3700 | |
0451c93c | 3701 | if (htab->elf.dynamic_sections_created) |
a85d7ed0 | 3702 | { |
a85d7ed0 NC |
3703 | Elf64_External_Dyn *dyncon, *dynconend; |
3704 | ||
f41345a7 | 3705 | if (sdyn == NULL || htab->elf.sgot == NULL) |
0451c93c | 3706 | abort (); |
a85d7ed0 NC |
3707 | |
3708 | dyncon = (Elf64_External_Dyn *) sdyn->contents; | |
eea6121a | 3709 | dynconend = (Elf64_External_Dyn *) (sdyn->contents + sdyn->size); |
a85d7ed0 NC |
3710 | for (; dyncon < dynconend; dyncon++) |
3711 | { | |
3712 | Elf_Internal_Dyn dyn; | |
a85d7ed0 | 3713 | asection *s; |
ec338859 | 3714 | |
a85d7ed0 | 3715 | bfd_elf64_swap_dyn_in (dynobj, dyncon, &dyn); |
ec338859 | 3716 | |
a85d7ed0 NC |
3717 | switch (dyn.d_tag) |
3718 | { | |
3719 | default: | |
0451c93c | 3720 | continue; |
ec338859 | 3721 | |
a85d7ed0 | 3722 | case DT_PLTGOT: |
4ade44b7 AM |
3723 | s = htab->elf.sgotplt; |
3724 | dyn.d_un.d_ptr = s->output_section->vma + s->output_offset; | |
0451c93c | 3725 | break; |
ec338859 | 3726 | |
a85d7ed0 | 3727 | case DT_JMPREL: |
4ade44b7 AM |
3728 | s = htab->elf.srelplt; |
3729 | dyn.d_un.d_ptr = s->output_section->vma + s->output_offset; | |
a85d7ed0 | 3730 | break; |
ec338859 | 3731 | |
a85d7ed0 | 3732 | case DT_PLTRELSZ: |
f92339b8 | 3733 | dyn.d_un.d_val = htab->elf.srelplt->size + htab->elf.irelplt->size; |
a85d7ed0 | 3734 | break; |
ec338859 | 3735 | |
a85d7ed0 NC |
3736 | case DT_RELASZ: |
3737 | /* The procedure linkage table relocs (DT_JMPREL) should | |
3738 | not be included in the overall relocs (DT_RELA). | |
3739 | Therefore, we override the DT_RELASZ entry here to | |
3740 | make it not include the JMPREL relocs. Since the | |
3741 | linker script arranges for .rela.plt to follow all | |
3742 | other relocation sections, we don't have to worry | |
3743 | about changing the DT_RELA entry. */ | |
f92339b8 | 3744 | dyn.d_un.d_val -= htab->elf.srelplt->size + htab->elf.irelplt->size; |
a85d7ed0 NC |
3745 | break; |
3746 | } | |
0451c93c MS |
3747 | |
3748 | bfd_elf64_swap_dyn_out (output_bfd, &dyn, dyncon); | |
a85d7ed0 NC |
3749 | } |
3750 | ||
3751 | /* Fill in the special first entry in the procedure linkage table. */ | |
f41345a7 | 3752 | if (htab->elf.splt && htab->elf.splt->size > 0) |
a85d7ed0 NC |
3753 | { |
3754 | /* fill in blueprint for plt 0 entry */ | |
f41345a7 | 3755 | memcpy (htab->elf.splt->contents, elf_s390x_first_plt_entry, |
9aa17453 | 3756 | PLT_FIRST_ENTRY_SIZE); |
a85d7ed0 NC |
3757 | /* Fixup relative address to start of GOT */ |
3758 | bfd_put_32 (output_bfd, | |
161db279 AK |
3759 | (htab->elf.sgotplt->output_section->vma |
3760 | + htab->elf.sgotplt->output_offset | |
3761 | - htab->elf.splt->output_section->vma | |
3762 | - htab->elf.splt->output_offset - 6)/2, | |
f41345a7 | 3763 | htab->elf.splt->contents + 8); |
a85d7ed0 | 3764 | } |
387f8054 MR |
3765 | if (elf_section_data (htab->elf.splt->output_section) != NULL) |
3766 | elf_section_data (htab->elf.splt->output_section)->this_hdr.sh_entsize | |
3767 | = PLT_ENTRY_SIZE; | |
a85d7ed0 NC |
3768 | } |
3769 | ||
f41345a7 | 3770 | if (htab->elf.sgotplt) |
a85d7ed0 | 3771 | { |
0451c93c | 3772 | /* Fill in the first three entries in the global offset table. */ |
f41345a7 | 3773 | if (htab->elf.sgotplt->size > 0) |
0451c93c MS |
3774 | { |
3775 | bfd_put_64 (output_bfd, | |
3776 | (sdyn == NULL ? (bfd_vma) 0 | |
3777 | : sdyn->output_section->vma + sdyn->output_offset), | |
f41345a7 | 3778 | htab->elf.sgotplt->contents); |
0451c93c | 3779 | /* One entry for shared object struct ptr. */ |
f41345a7 | 3780 | bfd_put_64 (output_bfd, (bfd_vma) 0, htab->elf.sgotplt->contents + 8); |
0451c93c | 3781 | /* One entry for _dl_runtime_resolve. */ |
3b67f094 | 3782 | bfd_put_64 (output_bfd, (bfd_vma) 0, htab->elf.sgotplt->contents + 16); |
0451c93c | 3783 | } |
a85d7ed0 | 3784 | |
f41345a7 | 3785 | elf_section_data (htab->elf.sgot->output_section) |
0451c93c MS |
3786 | ->this_hdr.sh_entsize = 8; |
3787 | } | |
470b557a AK |
3788 | |
3789 | /* Finish dynamic symbol for local IFUNC symbols. */ | |
c72f2fb2 | 3790 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) |
470b557a AK |
3791 | { |
3792 | struct plt_entry *local_plt; | |
3793 | Elf_Internal_Sym *isym; | |
3794 | Elf_Internal_Shdr *symtab_hdr; | |
3795 | ||
3796 | symtab_hdr = &elf_symtab_hdr (ibfd); | |
3797 | ||
3798 | local_plt = elf_s390_local_plt (ibfd); | |
3799 | if (local_plt != NULL) | |
3800 | for (i = 0; i < symtab_hdr->sh_info; i++) | |
3801 | { | |
3802 | if (local_plt[i].plt.offset != (bfd_vma) -1) | |
3803 | { | |
3804 | asection *sec = local_plt[i].sec; | |
3805 | isym = bfd_sym_from_r_symndx (&htab->sym_cache, ibfd, i); | |
3806 | if (isym == NULL) | |
3807 | return FALSE; | |
3808 | ||
3809 | if (ELF_ST_TYPE (isym->st_info) == STT_GNU_IFUNC) | |
3810 | elf_s390_finish_ifunc_symbol (output_bfd, info, NULL, htab, | |
3811 | local_plt[i].plt.offset, | |
3812 | isym->st_value | |
3813 | + sec->output_section->vma | |
3814 | + sec->output_offset); | |
3815 | ||
3816 | } | |
3817 | } | |
3818 | } | |
3819 | ||
b34976b6 | 3820 | return TRUE; |
a85d7ed0 | 3821 | } |
e3e9290d AA |
3822 | \f |
3823 | /* Support for core dump NOTE sections. */ | |
a85d7ed0 | 3824 | |
e3e9290d AA |
3825 | static bfd_boolean |
3826 | elf_s390_grok_prstatus (bfd *abfd, Elf_Internal_Note *note) | |
3827 | { | |
3828 | int offset; | |
3829 | size_t size; | |
3830 | ||
3831 | switch (note->descsz) | |
3832 | { | |
3833 | default: | |
3834 | return FALSE; | |
3835 | ||
3836 | case 336: /* sizeof(struct elf_prstatus) on s390x */ | |
3837 | /* pr_cursig */ | |
3838 | elf_tdata (abfd)->core->signal = bfd_get_16 (abfd, note->descdata + 12); | |
3839 | ||
3840 | /* pr_pid */ | |
3841 | elf_tdata (abfd)->core->lwpid = bfd_get_32 (abfd, note->descdata + 32); | |
3842 | ||
3843 | /* pr_reg */ | |
3844 | offset = 112; | |
3845 | size = 216; | |
3846 | break; | |
3847 | } | |
3848 | ||
3849 | /* Make a ".reg/999" section. */ | |
3850 | return _bfd_elfcore_make_pseudosection (abfd, ".reg", | |
3851 | size, note->descpos + offset); | |
3852 | } | |
3853 | ||
3854 | static bfd_boolean | |
3855 | elf_s390_grok_psinfo (bfd *abfd, Elf_Internal_Note *note) | |
3856 | { | |
3857 | switch (note->descsz) | |
3858 | { | |
3859 | default: | |
3860 | return FALSE; | |
3861 | ||
3862 | case 136: /* sizeof(struct elf_prpsinfo) on s390x */ | |
3863 | elf_tdata (abfd)->core->pid | |
3864 | = bfd_get_32 (abfd, note->descdata + 24); | |
3865 | elf_tdata (abfd)->core->program | |
3866 | = _bfd_elfcore_strndup (abfd, note->descdata + 40, 16); | |
3867 | elf_tdata (abfd)->core->command | |
3868 | = _bfd_elfcore_strndup (abfd, note->descdata + 56, 80); | |
3869 | } | |
3870 | ||
3871 | /* Note that for some reason, a spurious space is tacked | |
3872 | onto the end of the args in some (at least one anyway) | |
3873 | implementations, so strip it off if it exists. */ | |
3874 | ||
3875 | { | |
3876 | char *command = elf_tdata (abfd)->core->command; | |
3877 | int n = strlen (command); | |
3878 | ||
3879 | if (0 < n && command[n - 1] == ' ') | |
3880 | command[n - 1] = '\0'; | |
3881 | } | |
3882 | ||
3883 | return TRUE; | |
3884 | } | |
3885 | ||
3886 | static char * | |
3887 | elf_s390_write_core_note (bfd *abfd, char *buf, int *bufsiz, | |
3888 | int note_type, ...) | |
3889 | { | |
3890 | va_list ap; | |
3891 | ||
3892 | switch (note_type) | |
3893 | { | |
3894 | default: | |
3895 | return NULL; | |
3896 | ||
3897 | case NT_PRPSINFO: | |
3898 | { | |
3899 | char data[136] = { 0 }; | |
3900 | const char *fname, *psargs; | |
3901 | ||
3902 | va_start (ap, note_type); | |
3903 | fname = va_arg (ap, const char *); | |
3904 | psargs = va_arg (ap, const char *); | |
3905 | va_end (ap); | |
3906 | ||
3907 | strncpy (data + 40, fname, 16); | |
3908 | strncpy (data + 56, psargs, 80); | |
3909 | return elfcore_write_note (abfd, buf, bufsiz, "CORE", note_type, | |
3910 | &data, sizeof (data)); | |
3911 | } | |
3912 | ||
3913 | case NT_PRSTATUS: | |
3914 | { | |
3915 | char data[336] = { 0 }; | |
3916 | long pid; | |
3917 | int cursig; | |
3918 | const void *gregs; | |
3919 | ||
3920 | va_start (ap, note_type); | |
3921 | pid = va_arg (ap, long); | |
3922 | cursig = va_arg (ap, int); | |
3923 | gregs = va_arg (ap, const void *); | |
3924 | va_end (ap); | |
3925 | ||
3926 | bfd_put_16 (abfd, cursig, data + 12); | |
3927 | bfd_put_32 (abfd, pid, data + 32); | |
3928 | memcpy (data + 112, gregs, 216); | |
3929 | return elfcore_write_note (abfd, buf, bufsiz, "CORE", note_type, | |
3930 | &data, sizeof (data)); | |
3931 | } | |
3932 | } | |
3933 | /* NOTREACHED */ | |
3934 | } | |
3935 | \f | |
4c45e5c9 JJ |
3936 | /* Return address for Ith PLT stub in section PLT, for relocation REL |
3937 | or (bfd_vma) -1 if it should not be included. */ | |
3938 | ||
3939 | static bfd_vma | |
3940 | elf_s390_plt_sym_val (bfd_vma i, const asection *plt, | |
3941 | const arelent *rel ATTRIBUTE_UNUSED) | |
3942 | { | |
3943 | return plt->vma + PLT_FIRST_ENTRY_SIZE + i * PLT_ENTRY_SIZE; | |
3944 | } | |
3945 | ||
643f7afb AK |
3946 | /* Merge backend specific data from an object file to the output |
3947 | object file when linking. */ | |
3948 | ||
3949 | static bfd_boolean | |
50e03d47 | 3950 | elf64_s390_merge_private_bfd_data (bfd *ibfd, struct bfd_link_info *info) |
643f7afb | 3951 | { |
50e03d47 | 3952 | if (!is_s390_elf (ibfd) || !is_s390_elf (info->output_bfd)) |
643f7afb AK |
3953 | return TRUE; |
3954 | ||
50e03d47 | 3955 | return elf_s390_merge_obj_attributes (ibfd, info); |
643f7afb AK |
3956 | } |
3957 | ||
ae9a127f NC |
3958 | /* Why was the hash table entry size definition changed from |
3959 | ARCH_SIZE/8 to 4? This breaks the 64 bit dynamic linker and | |
3960 | this is the only reason for the s390_elf64_size_info structure. */ | |
a85d7ed0 NC |
3961 | |
3962 | const struct elf_size_info s390_elf64_size_info = | |
3963 | { | |
3964 | sizeof (Elf64_External_Ehdr), | |
3965 | sizeof (Elf64_External_Phdr), | |
3966 | sizeof (Elf64_External_Shdr), | |
3967 | sizeof (Elf64_External_Rel), | |
3968 | sizeof (Elf64_External_Rela), | |
3969 | sizeof (Elf64_External_Sym), | |
3970 | sizeof (Elf64_External_Dyn), | |
3971 | sizeof (Elf_External_Note), | |
ae9a127f NC |
3972 | 8, /* hash-table entry size. */ |
3973 | 1, /* internal relocations per external relocations. */ | |
3974 | 64, /* arch_size. */ | |
45d6a902 | 3975 | 3, /* log_file_align. */ |
a85d7ed0 NC |
3976 | ELFCLASS64, EV_CURRENT, |
3977 | bfd_elf64_write_out_phdrs, | |
3978 | bfd_elf64_write_shdrs_and_ehdr, | |
1489a3a0 | 3979 | bfd_elf64_checksum_contents, |
a85d7ed0 | 3980 | bfd_elf64_write_relocs, |
73ff0d56 | 3981 | bfd_elf64_swap_symbol_in, |
a85d7ed0 NC |
3982 | bfd_elf64_swap_symbol_out, |
3983 | bfd_elf64_slurp_reloc_table, | |
3984 | bfd_elf64_slurp_symbol_table, | |
3985 | bfd_elf64_swap_dyn_in, | |
3986 | bfd_elf64_swap_dyn_out, | |
947216bf AM |
3987 | bfd_elf64_swap_reloc_in, |
3988 | bfd_elf64_swap_reloc_out, | |
3989 | bfd_elf64_swap_reloca_in, | |
3990 | bfd_elf64_swap_reloca_out | |
a85d7ed0 NC |
3991 | }; |
3992 | ||
6d00b590 | 3993 | #define TARGET_BIG_SYM s390_elf64_vec |
a85d7ed0 NC |
3994 | #define TARGET_BIG_NAME "elf64-s390" |
3995 | #define ELF_ARCH bfd_arch_s390 | |
ae95ffa6 | 3996 | #define ELF_TARGET_ID S390_ELF_DATA |
a85d7ed0 NC |
3997 | #define ELF_MACHINE_CODE EM_S390 |
3998 | #define ELF_MACHINE_ALT1 EM_S390_OLD | |
3999 | #define ELF_MAXPAGESIZE 0x1000 | |
4000 | ||
4001 | #define elf_backend_size_info s390_elf64_size_info | |
4002 | ||
4003 | #define elf_backend_can_gc_sections 1 | |
51b64d56 | 4004 | #define elf_backend_can_refcount 1 |
a85d7ed0 NC |
4005 | #define elf_backend_want_got_plt 1 |
4006 | #define elf_backend_plt_readonly 1 | |
4007 | #define elf_backend_want_plt_sym 0 | |
4008 | #define elf_backend_got_header_size 24 | |
5474d94f | 4009 | #define elf_backend_want_dynrelro 1 |
b491616a | 4010 | #define elf_backend_rela_normal 1 |
a85d7ed0 NC |
4011 | |
4012 | #define elf_info_to_howto elf_s390_info_to_howto | |
4013 | ||
a85d7ed0 NC |
4014 | #define bfd_elf64_bfd_is_local_label_name elf_s390_is_local_label_name |
4015 | #define bfd_elf64_bfd_link_hash_table_create elf_s390_link_hash_table_create | |
4016 | #define bfd_elf64_bfd_reloc_type_lookup elf_s390_reloc_type_lookup | |
643f7afb AK |
4017 | #define bfd_elf64_bfd_reloc_name_lookup elf_s390_reloc_name_lookup |
4018 | #define bfd_elf64_bfd_merge_private_bfd_data elf64_s390_merge_private_bfd_data | |
a85d7ed0 NC |
4019 | |
4020 | #define elf_backend_adjust_dynamic_symbol elf_s390_adjust_dynamic_symbol | |
4021 | #define elf_backend_check_relocs elf_s390_check_relocs | |
0451c93c | 4022 | #define elf_backend_copy_indirect_symbol elf_s390_copy_indirect_symbol |
9d19e4fd | 4023 | #define elf_backend_create_dynamic_sections _bfd_elf_create_dynamic_sections |
a85d7ed0 NC |
4024 | #define elf_backend_finish_dynamic_sections elf_s390_finish_dynamic_sections |
4025 | #define elf_backend_finish_dynamic_symbol elf_s390_finish_dynamic_symbol | |
4026 | #define elf_backend_gc_mark_hook elf_s390_gc_mark_hook | |
4027 | #define elf_backend_gc_sweep_hook elf_s390_gc_sweep_hook | |
0451c93c | 4028 | #define elf_backend_reloc_type_class elf_s390_reloc_type_class |
a85d7ed0 NC |
4029 | #define elf_backend_relocate_section elf_s390_relocate_section |
4030 | #define elf_backend_size_dynamic_sections elf_s390_size_dynamic_sections | |
74541ad4 | 4031 | #define elf_backend_init_index_section _bfd_elf_init_1_index_section |
e3e9290d AA |
4032 | #define elf_backend_grok_prstatus elf_s390_grok_prstatus |
4033 | #define elf_backend_grok_psinfo elf_s390_grok_psinfo | |
4034 | #define elf_backend_write_core_note elf_s390_write_core_note | |
4c45e5c9 | 4035 | #define elf_backend_plt_sym_val elf_s390_plt_sym_val |
470b557a | 4036 | #define elf_backend_add_symbol_hook elf_s390_add_symbol_hook |
b9005ba7 | 4037 | #define elf_backend_sort_relocs_p elf_s390_elf_sort_relocs_p |
a85d7ed0 | 4038 | |
69fc87f1 MS |
4039 | #define bfd_elf64_mkobject elf_s390_mkobject |
4040 | #define elf_backend_object_p elf_s390_object_p | |
a85d7ed0 NC |
4041 | |
4042 | #include "elf64-target.h" |