Commit | Line | Data |
---|---|---|
a85d7ed0 | 1 | /* IBM S/390-specific support for 32-bit ELF |
ab96bf03 | 2 | Copyright 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007 |
3eb128b2 | 3 | Free Software Foundation, Inc. |
a85d7ed0 NC |
4 | Contributed by Carl B. Pedersen and Martin Schwidefsky. |
5 | ||
6 | This file is part of BFD, the Binary File Descriptor library. | |
7 | ||
8 | This program is free software; you can redistribute it and/or modify | |
9 | it under the terms of the GNU General Public License as published by | |
10 | the Free Software Foundation; either version 2 of the License, or | |
11 | (at your option) any later version. | |
12 | ||
13 | This program is distributed in the hope that it will be useful, | |
14 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | GNU General Public License for more details. | |
17 | ||
18 | You should have received a copy of the GNU General Public License | |
19 | along with this program; if not, write to the Free Software | |
3e110533 | 20 | Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA |
53e09e0a | 21 | 02110-1301, USA. */ |
a85d7ed0 | 22 | |
a85d7ed0 | 23 | #include "sysdep.h" |
3db64b00 | 24 | #include "bfd.h" |
a85d7ed0 NC |
25 | #include "bfdlink.h" |
26 | #include "libbfd.h" | |
27 | #include "elf-bfd.h" | |
28 | ||
29 | static reloc_howto_type *elf_s390_reloc_type_lookup | |
30 | PARAMS ((bfd *, bfd_reloc_code_real_type)); | |
31 | static void elf_s390_info_to_howto | |
32 | PARAMS ((bfd *, arelent *, Elf_Internal_Rela *)); | |
b34976b6 | 33 | static bfd_boolean elf_s390_is_local_label_name |
0451c93c MS |
34 | PARAMS ((bfd *, const char *)); |
35 | static struct bfd_hash_entry *link_hash_newfunc | |
a85d7ed0 NC |
36 | PARAMS ((struct bfd_hash_entry *, struct bfd_hash_table *, const char *)); |
37 | static struct bfd_link_hash_table *elf_s390_link_hash_table_create | |
38 | PARAMS ((bfd *)); | |
b34976b6 | 39 | static bfd_boolean create_got_section |
0451c93c | 40 | PARAMS((bfd *, struct bfd_link_info *)); |
b34976b6 | 41 | static bfd_boolean elf_s390_create_dynamic_sections |
0451c93c MS |
42 | PARAMS((bfd *, struct bfd_link_info *)); |
43 | static void elf_s390_copy_indirect_symbol | |
fcfa13d2 | 44 | PARAMS ((struct bfd_link_info *, struct elf_link_hash_entry *, |
b48fa14c | 45 | struct elf_link_hash_entry *)); |
b34976b6 | 46 | static bfd_boolean elf_s390_check_relocs |
a85d7ed0 NC |
47 | PARAMS ((bfd *, struct bfd_link_info *, asection *, |
48 | const Elf_Internal_Rela *)); | |
5236c819 MS |
49 | struct elf_s390_link_hash_entry; |
50 | static void elf_s390_adjust_gotplt | |
51 | PARAMS ((struct elf_s390_link_hash_entry *)); | |
b34976b6 | 52 | static bfd_boolean elf_s390_adjust_dynamic_symbol |
a85d7ed0 | 53 | PARAMS ((struct bfd_link_info *, struct elf_link_hash_entry *)); |
b34976b6 | 54 | static bfd_boolean allocate_dynrelocs |
0451c93c | 55 | PARAMS ((struct elf_link_hash_entry *, PTR)); |
b34976b6 | 56 | static bfd_boolean readonly_dynrelocs |
0451c93c | 57 | PARAMS ((struct elf_link_hash_entry *, PTR)); |
b34976b6 | 58 | static bfd_boolean elf_s390_size_dynamic_sections |
a85d7ed0 | 59 | PARAMS ((bfd *, struct bfd_link_info *)); |
b34976b6 | 60 | static bfd_boolean elf_s390_relocate_section |
a85d7ed0 NC |
61 | PARAMS ((bfd *, struct bfd_link_info *, bfd *, asection *, bfd_byte *, |
62 | Elf_Internal_Rela *, Elf_Internal_Sym *, asection **)); | |
b34976b6 | 63 | static bfd_boolean elf_s390_finish_dynamic_symbol |
a85d7ed0 NC |
64 | PARAMS ((bfd *, struct bfd_link_info *, struct elf_link_hash_entry *, |
65 | Elf_Internal_Sym *)); | |
0451c93c MS |
66 | static enum elf_reloc_type_class elf_s390_reloc_type_class |
67 | PARAMS ((const Elf_Internal_Rela *)); | |
b34976b6 | 68 | static bfd_boolean elf_s390_finish_dynamic_sections |
a85d7ed0 | 69 | PARAMS ((bfd *, struct bfd_link_info *)); |
b34976b6 AM |
70 | static bfd_boolean elf_s390_object_p |
71 | PARAMS ((bfd *)); | |
72 | static bfd_boolean elf_s390_grok_prstatus | |
73 | PARAMS ((bfd *, Elf_Internal_Note *)); | |
69fc87f1 MS |
74 | static int elf_s390_tls_transition |
75 | PARAMS ((struct bfd_link_info *, int, int)); | |
76 | static bfd_reloc_status_type s390_tls_reloc | |
77 | PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **)); | |
78 | static bfd_vma dtpoff_base | |
79 | PARAMS ((struct bfd_link_info *)); | |
80 | static bfd_vma tpoff | |
81 | PARAMS ((struct bfd_link_info *, bfd_vma)); | |
82 | static void invalid_tls_insn | |
83 | PARAMS ((bfd *, asection *, Elf_Internal_Rela *)); | |
bd1ea41b MS |
84 | static bfd_reloc_status_type s390_elf_ldisp_reloc |
85 | PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **)); | |
a85d7ed0 | 86 | |
a85d7ed0 NC |
87 | #include "elf/s390.h" |
88 | ||
89 | /* The relocation "howto" table. */ | |
90 | ||
91 | static reloc_howto_type elf_howto_table[] = | |
92 | { | |
93 | HOWTO (R_390_NONE, /* type */ | |
94 | 0, /* rightshift */ | |
95 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
96 | 0, /* bitsize */ | |
b34976b6 | 97 | FALSE, /* pc_relative */ |
a85d7ed0 NC |
98 | 0, /* bitpos */ |
99 | complain_overflow_dont, /* complain_on_overflow */ | |
100 | bfd_elf_generic_reloc, /* special_function */ | |
101 | "R_390_NONE", /* name */ | |
b34976b6 | 102 | FALSE, /* partial_inplace */ |
a85d7ed0 NC |
103 | 0, /* src_mask */ |
104 | 0, /* dst_mask */ | |
b34976b6 AM |
105 | FALSE), /* pcrel_offset */ |
106 | ||
5236c819 MS |
107 | HOWTO(R_390_8, 0, 0, 8, FALSE, 0, complain_overflow_bitfield, |
108 | bfd_elf_generic_reloc, "R_390_8", FALSE, 0,0x000000ff, FALSE), | |
109 | HOWTO(R_390_12, 0, 1, 12, FALSE, 0, complain_overflow_dont, | |
110 | bfd_elf_generic_reloc, "R_390_12", FALSE, 0,0x00000fff, FALSE), | |
111 | HOWTO(R_390_16, 0, 1, 16, FALSE, 0, complain_overflow_bitfield, | |
112 | bfd_elf_generic_reloc, "R_390_16", FALSE, 0,0x0000ffff, FALSE), | |
113 | HOWTO(R_390_32, 0, 2, 32, FALSE, 0, complain_overflow_bitfield, | |
114 | bfd_elf_generic_reloc, "R_390_32", FALSE, 0,0xffffffff, FALSE), | |
115 | HOWTO(R_390_PC32, 0, 2, 32, TRUE, 0, complain_overflow_bitfield, | |
116 | bfd_elf_generic_reloc, "R_390_PC32", FALSE, 0,0xffffffff, TRUE), | |
15f8604d | 117 | HOWTO(R_390_GOT12, 0, 1, 12, FALSE, 0, complain_overflow_bitfield, |
5236c819 MS |
118 | bfd_elf_generic_reloc, "R_390_GOT12", FALSE, 0,0x00000fff, FALSE), |
119 | HOWTO(R_390_GOT32, 0, 2, 32, FALSE, 0, complain_overflow_bitfield, | |
120 | bfd_elf_generic_reloc, "R_390_GOT32", FALSE, 0,0xffffffff, FALSE), | |
121 | HOWTO(R_390_PLT32, 0, 2, 32, TRUE, 0, complain_overflow_bitfield, | |
122 | bfd_elf_generic_reloc, "R_390_PLT32", FALSE, 0,0xffffffff, TRUE), | |
123 | HOWTO(R_390_COPY, 0, 2, 32, FALSE, 0, complain_overflow_bitfield, | |
124 | bfd_elf_generic_reloc, "R_390_COPY", FALSE, 0,0xffffffff, FALSE), | |
125 | HOWTO(R_390_GLOB_DAT, 0, 2, 32, FALSE, 0, complain_overflow_bitfield, | |
126 | bfd_elf_generic_reloc, "R_390_GLOB_DAT", FALSE, 0,0xffffffff, FALSE), | |
127 | HOWTO(R_390_JMP_SLOT, 0, 2, 32, FALSE, 0, complain_overflow_bitfield, | |
128 | bfd_elf_generic_reloc, "R_390_JMP_SLOT", FALSE, 0,0xffffffff, FALSE), | |
129 | HOWTO(R_390_RELATIVE, 0, 2, 32, TRUE, 0, complain_overflow_bitfield, | |
130 | bfd_elf_generic_reloc, "R_390_RELATIVE", FALSE, 0,0xffffffff, FALSE), | |
131 | HOWTO(R_390_GOTOFF32, 0, 2, 32, FALSE, 0, complain_overflow_bitfield, | |
132 | bfd_elf_generic_reloc, "R_390_GOTOFF32", FALSE, 0,0xffffffff, FALSE), | |
133 | HOWTO(R_390_GOTPC, 0, 2, 32, TRUE, 0, complain_overflow_bitfield, | |
134 | bfd_elf_generic_reloc, "R_390_GOTPC", FALSE, 0,0xffffffff, TRUE), | |
135 | HOWTO(R_390_GOT16, 0, 1, 16, FALSE, 0, complain_overflow_bitfield, | |
136 | bfd_elf_generic_reloc, "R_390_GOT16", FALSE, 0,0x0000ffff, FALSE), | |
137 | HOWTO(R_390_PC16, 0, 1, 16, TRUE, 0, complain_overflow_bitfield, | |
138 | bfd_elf_generic_reloc, "R_390_PC16", FALSE, 0,0x0000ffff, TRUE), | |
139 | HOWTO(R_390_PC16DBL, 1, 1, 16, TRUE, 0, complain_overflow_bitfield, | |
140 | bfd_elf_generic_reloc, "R_390_PC16DBL", FALSE, 0,0x0000ffff, TRUE), | |
141 | HOWTO(R_390_PLT16DBL, 1, 1, 16, TRUE, 0, complain_overflow_bitfield, | |
142 | bfd_elf_generic_reloc, "R_390_PLT16DBL", FALSE, 0,0x0000ffff, TRUE), | |
143 | HOWTO(R_390_PC32DBL, 1, 2, 32, TRUE, 0, complain_overflow_bitfield, | |
144 | bfd_elf_generic_reloc, "R_390_PC32DBL", FALSE, 0,0xffffffff, TRUE), | |
145 | HOWTO(R_390_PLT32DBL, 1, 2, 32, TRUE, 0, complain_overflow_bitfield, | |
146 | bfd_elf_generic_reloc, "R_390_PLT32DBL", FALSE, 0,0xffffffff, TRUE), | |
147 | HOWTO(R_390_GOTPCDBL, 1, 2, 32, TRUE, 0, complain_overflow_bitfield, | |
148 | bfd_elf_generic_reloc, "R_390_GOTPCDBL", FALSE, 0,0xffffffff, TRUE), | |
149 | EMPTY_HOWTO (R_390_64), /* Empty entry for R_390_64. */ | |
150 | EMPTY_HOWTO (R_390_PC64), /* Empty entry for R_390_PC64. */ | |
151 | EMPTY_HOWTO (R_390_GOT64), /* Empty entry for R_390_GOT64. */ | |
152 | EMPTY_HOWTO (R_390_PLT64), /* Empty entry for R_390_PLT64. */ | |
153 | HOWTO(R_390_GOTENT, 1, 2, 32, TRUE, 0, complain_overflow_bitfield, | |
154 | bfd_elf_generic_reloc, "R_390_GOTENT", FALSE, 0,0xffffffff, TRUE), | |
155 | HOWTO(R_390_GOTOFF16, 0, 1, 16, FALSE, 0, complain_overflow_bitfield, | |
156 | bfd_elf_generic_reloc, "R_390_GOTOFF16", FALSE, 0,0x0000ffff, FALSE), | |
157 | EMPTY_HOWTO (R_390_GOTOFF64), /* Empty entry for R_390_GOTOFF64. */ | |
158 | HOWTO(R_390_GOTPLT12, 0, 1, 12, FALSE, 0, complain_overflow_dont, | |
159 | bfd_elf_generic_reloc, "R_390_GOTPLT12", FALSE, 0,0x00000fff, FALSE), | |
160 | HOWTO(R_390_GOTPLT16, 0, 1, 16, FALSE, 0, complain_overflow_bitfield, | |
161 | bfd_elf_generic_reloc, "R_390_GOTPLT16", FALSE, 0,0x0000ffff, FALSE), | |
162 | HOWTO(R_390_GOTPLT32, 0, 2, 32, FALSE, 0, complain_overflow_bitfield, | |
163 | bfd_elf_generic_reloc, "R_390_GOTPLT32", FALSE, 0,0xffffffff, FALSE), | |
164 | EMPTY_HOWTO (R_390_GOTPLT64), /* Empty entry for R_390_GOTPLT64. */ | |
165 | HOWTO(R_390_GOTPLTENT, 1, 2, 32, TRUE, 0, complain_overflow_bitfield, | |
166 | bfd_elf_generic_reloc, "R_390_GOTPLTENT",FALSE, 0,0xffffffff, TRUE), | |
167 | HOWTO(R_390_PLTOFF16, 0, 1, 16, FALSE, 0, complain_overflow_bitfield, | |
168 | bfd_elf_generic_reloc, "R_390_PLTOFF16", FALSE, 0,0x0000ffff, FALSE), | |
169 | HOWTO(R_390_PLTOFF32, 0, 2, 32, FALSE, 0, complain_overflow_bitfield, | |
170 | bfd_elf_generic_reloc, "R_390_PLTOFF32", FALSE, 0,0xffffffff, FALSE), | |
171 | EMPTY_HOWTO (R_390_PLTOFF64), /* Empty entry for R_390_PLTOFF64. */ | |
69fc87f1 MS |
172 | HOWTO(R_390_TLS_LOAD, 0, 0, 0, FALSE, 0, complain_overflow_dont, |
173 | s390_tls_reloc, "R_390_TLS_LOAD", FALSE, 0, 0, FALSE), | |
174 | HOWTO(R_390_TLS_GDCALL, 0, 0, 0, FALSE, 0, complain_overflow_dont, | |
175 | s390_tls_reloc, "R_390_TLS_GDCALL", FALSE, 0, 0, FALSE), | |
176 | HOWTO(R_390_TLS_LDCALL, 0, 0, 0, FALSE, 0, complain_overflow_dont, | |
177 | s390_tls_reloc, "R_390_TLS_LDCALL", FALSE, 0, 0, FALSE), | |
178 | HOWTO(R_390_TLS_GD32, 0, 2, 32, FALSE, 0, complain_overflow_bitfield, | |
179 | bfd_elf_generic_reloc, "R_390_TLS_GD32", FALSE, 0, 0xffffffff, FALSE), | |
180 | EMPTY_HOWTO (R_390_TLS_GD64), /* Empty entry for R_390_TLS_GD64. */ | |
181 | HOWTO(R_390_TLS_GOTIE12, 0, 1, 12, FALSE, 0, complain_overflow_dont, | |
182 | bfd_elf_generic_reloc, "R_390_TLS_GOTIE12", FALSE, 0, 0x00000fff, FALSE), | |
183 | HOWTO(R_390_TLS_GOTIE32, 0, 2, 32, FALSE, 0, complain_overflow_bitfield, | |
184 | bfd_elf_generic_reloc, "R_390_TLS_GOTIE32", FALSE, 0, 0xffffffff, FALSE), | |
185 | EMPTY_HOWTO (R_390_TLS_GOTIE64), /* Empty entry for R_390_TLS_GOTIE64. */ | |
186 | HOWTO(R_390_TLS_LDM32, 0, 2, 32, FALSE, 0, complain_overflow_bitfield, | |
187 | bfd_elf_generic_reloc, "R_390_TLS_LDM32", FALSE, 0, 0xffffffff, FALSE), | |
188 | EMPTY_HOWTO (R_390_TLS_LDM64), /* Empty entry for R_390_TLS_LDM64. */ | |
189 | HOWTO(R_390_TLS_IE32, 0, 2, 32, FALSE, 0, complain_overflow_bitfield, | |
190 | bfd_elf_generic_reloc, "R_390_TLS_IE32", FALSE, 0, 0xffffffff, FALSE), | |
191 | EMPTY_HOWTO (R_390_TLS_IE64), /* Empty entry for R_390_TLS_IE64. */ | |
192 | HOWTO(R_390_TLS_IEENT, 1, 2, 32, TRUE, 0, complain_overflow_bitfield, | |
193 | bfd_elf_generic_reloc, "R_390_TLS_IEENT", FALSE, 0, 0xffffffff, TRUE), | |
194 | HOWTO(R_390_TLS_LE32, 0, 2, 32, FALSE, 0, complain_overflow_bitfield, | |
195 | bfd_elf_generic_reloc, "R_390_TLS_LE32", FALSE, 0, 0xffffffff, FALSE), | |
196 | EMPTY_HOWTO (R_390_TLS_LE64), /* Empty entry for R_390_TLS_LE64. */ | |
197 | HOWTO(R_390_TLS_LDO32, 0, 2, 32, FALSE, 0, complain_overflow_bitfield, | |
198 | bfd_elf_generic_reloc, "R_390_TLS_LDO32", FALSE, 0, 0xffffffff, FALSE), | |
199 | EMPTY_HOWTO (R_390_TLS_LDO64), /* Empty entry for R_390_TLS_LDO64. */ | |
200 | HOWTO(R_390_TLS_DTPMOD, 0, 2, 32, FALSE, 0, complain_overflow_bitfield, | |
201 | bfd_elf_generic_reloc, "R_390_TLS_DTPMOD", FALSE, 0, 0xffffffff, FALSE), | |
202 | HOWTO(R_390_TLS_DTPOFF, 0, 2, 32, FALSE, 0, complain_overflow_bitfield, | |
203 | bfd_elf_generic_reloc, "R_390_TLS_DTPOFF", FALSE, 0, 0xffffffff, FALSE), | |
204 | HOWTO(R_390_TLS_TPOFF, 0, 2, 32, FALSE, 0, complain_overflow_bitfield, | |
205 | bfd_elf_generic_reloc, "R_390_TLS_TPOFF", FALSE, 0, 0xffffffff, FALSE), | |
bd1ea41b MS |
206 | HOWTO(R_390_20, 0, 2, 20, FALSE, 8, complain_overflow_dont, |
207 | s390_elf_ldisp_reloc, "R_390_20", FALSE, 0,0x0fffff00, FALSE), | |
208 | HOWTO(R_390_GOT20, 0, 2, 20, FALSE, 8, complain_overflow_dont, | |
209 | s390_elf_ldisp_reloc, "R_390_GOT20", FALSE, 0,0x0fffff00, FALSE), | |
210 | HOWTO(R_390_GOTPLT20, 0, 2, 20, FALSE, 8, complain_overflow_dont, | |
211 | s390_elf_ldisp_reloc, "R_390_GOTPLT20", FALSE, 0,0x0fffff00, FALSE), | |
212 | HOWTO(R_390_TLS_GOTIE20, 0, 2, 20, FALSE, 8, complain_overflow_dont, | |
213 | s390_elf_ldisp_reloc, "R_390_TLS_GOTIE20", FALSE, 0,0x0fffff00, FALSE), | |
a85d7ed0 NC |
214 | }; |
215 | ||
216 | /* GNU extension to record C++ vtable hierarchy. */ | |
217 | static reloc_howto_type elf32_s390_vtinherit_howto = | |
b34976b6 | 218 | HOWTO (R_390_GNU_VTINHERIT, 0,2,0,FALSE,0,complain_overflow_dont, NULL, "R_390_GNU_VTINHERIT", FALSE,0, 0, FALSE); |
a85d7ed0 | 219 | static reloc_howto_type elf32_s390_vtentry_howto = |
b34976b6 | 220 | HOWTO (R_390_GNU_VTENTRY, 0,2,0,FALSE,0,complain_overflow_dont, _bfd_elf_rel_vtable_reloc_fn,"R_390_GNU_VTENTRY", FALSE,0,0, FALSE); |
a85d7ed0 NC |
221 | |
222 | static reloc_howto_type * | |
223 | elf_s390_reloc_type_lookup (abfd, code) | |
224 | bfd *abfd ATTRIBUTE_UNUSED; | |
225 | bfd_reloc_code_real_type code; | |
226 | { | |
ec338859 | 227 | switch (code) |
0451c93c MS |
228 | { |
229 | case BFD_RELOC_NONE: | |
230 | return &elf_howto_table[(int) R_390_NONE]; | |
231 | case BFD_RELOC_8: | |
232 | return &elf_howto_table[(int) R_390_8]; | |
233 | case BFD_RELOC_390_12: | |
234 | return &elf_howto_table[(int) R_390_12]; | |
235 | case BFD_RELOC_16: | |
236 | return &elf_howto_table[(int) R_390_16]; | |
237 | case BFD_RELOC_32: | |
238 | return &elf_howto_table[(int) R_390_32]; | |
239 | case BFD_RELOC_CTOR: | |
240 | return &elf_howto_table[(int) R_390_32]; | |
241 | case BFD_RELOC_32_PCREL: | |
242 | return &elf_howto_table[(int) R_390_PC32]; | |
243 | case BFD_RELOC_390_GOT12: | |
244 | return &elf_howto_table[(int) R_390_GOT12]; | |
245 | case BFD_RELOC_32_GOT_PCREL: | |
246 | return &elf_howto_table[(int) R_390_GOT32]; | |
247 | case BFD_RELOC_390_PLT32: | |
248 | return &elf_howto_table[(int) R_390_PLT32]; | |
249 | case BFD_RELOC_390_COPY: | |
250 | return &elf_howto_table[(int) R_390_COPY]; | |
251 | case BFD_RELOC_390_GLOB_DAT: | |
252 | return &elf_howto_table[(int) R_390_GLOB_DAT]; | |
253 | case BFD_RELOC_390_JMP_SLOT: | |
254 | return &elf_howto_table[(int) R_390_JMP_SLOT]; | |
255 | case BFD_RELOC_390_RELATIVE: | |
256 | return &elf_howto_table[(int) R_390_RELATIVE]; | |
257 | case BFD_RELOC_32_GOTOFF: | |
5236c819 | 258 | return &elf_howto_table[(int) R_390_GOTOFF32]; |
0451c93c MS |
259 | case BFD_RELOC_390_GOTPC: |
260 | return &elf_howto_table[(int) R_390_GOTPC]; | |
261 | case BFD_RELOC_390_GOT16: | |
262 | return &elf_howto_table[(int) R_390_GOT16]; | |
263 | case BFD_RELOC_16_PCREL: | |
264 | return &elf_howto_table[(int) R_390_PC16]; | |
265 | case BFD_RELOC_390_PC16DBL: | |
266 | return &elf_howto_table[(int) R_390_PC16DBL]; | |
267 | case BFD_RELOC_390_PLT16DBL: | |
268 | return &elf_howto_table[(int) R_390_PLT16DBL]; | |
befc3abb MS |
269 | case BFD_RELOC_390_PC32DBL: |
270 | return &elf_howto_table[(int) R_390_PC32DBL]; | |
271 | case BFD_RELOC_390_PLT32DBL: | |
272 | return &elf_howto_table[(int) R_390_PLT32DBL]; | |
273 | case BFD_RELOC_390_GOTPCDBL: | |
274 | return &elf_howto_table[(int) R_390_GOTPCDBL]; | |
275 | case BFD_RELOC_390_GOTENT: | |
276 | return &elf_howto_table[(int) R_390_GOTENT]; | |
5236c819 MS |
277 | case BFD_RELOC_16_GOTOFF: |
278 | return &elf_howto_table[(int) R_390_GOTOFF16]; | |
279 | case BFD_RELOC_390_GOTPLT12: | |
280 | return &elf_howto_table[(int) R_390_GOTPLT12]; | |
281 | case BFD_RELOC_390_GOTPLT16: | |
282 | return &elf_howto_table[(int) R_390_GOTPLT16]; | |
283 | case BFD_RELOC_390_GOTPLT32: | |
284 | return &elf_howto_table[(int) R_390_GOTPLT32]; | |
285 | case BFD_RELOC_390_GOTPLTENT: | |
286 | return &elf_howto_table[(int) R_390_GOTPLTENT]; | |
287 | case BFD_RELOC_390_PLTOFF16: | |
288 | return &elf_howto_table[(int) R_390_PLTOFF16]; | |
289 | case BFD_RELOC_390_PLTOFF32: | |
290 | return &elf_howto_table[(int) R_390_PLTOFF32]; | |
69fc87f1 MS |
291 | case BFD_RELOC_390_TLS_LOAD: |
292 | return &elf_howto_table[(int) R_390_TLS_LOAD]; | |
293 | case BFD_RELOC_390_TLS_GDCALL: | |
294 | return &elf_howto_table[(int) R_390_TLS_GDCALL]; | |
295 | case BFD_RELOC_390_TLS_LDCALL: | |
296 | return &elf_howto_table[(int) R_390_TLS_LDCALL]; | |
297 | case BFD_RELOC_390_TLS_GD32: | |
298 | return &elf_howto_table[(int) R_390_TLS_GD32]; | |
299 | case BFD_RELOC_390_TLS_GOTIE12: | |
300 | return &elf_howto_table[(int) R_390_TLS_GOTIE12]; | |
301 | case BFD_RELOC_390_TLS_GOTIE32: | |
302 | return &elf_howto_table[(int) R_390_TLS_GOTIE32]; | |
303 | case BFD_RELOC_390_TLS_LDM32: | |
304 | return &elf_howto_table[(int) R_390_TLS_LDM32]; | |
305 | case BFD_RELOC_390_TLS_IE32: | |
306 | return &elf_howto_table[(int) R_390_TLS_IE32]; | |
307 | case BFD_RELOC_390_TLS_IEENT: | |
308 | return &elf_howto_table[(int) R_390_TLS_IEENT]; | |
309 | case BFD_RELOC_390_TLS_LE32: | |
310 | return &elf_howto_table[(int) R_390_TLS_LE32]; | |
311 | case BFD_RELOC_390_TLS_LDO32: | |
312 | return &elf_howto_table[(int) R_390_TLS_LDO32]; | |
313 | case BFD_RELOC_390_TLS_DTPMOD: | |
314 | return &elf_howto_table[(int) R_390_TLS_DTPMOD]; | |
315 | case BFD_RELOC_390_TLS_DTPOFF: | |
316 | return &elf_howto_table[(int) R_390_TLS_DTPOFF]; | |
317 | case BFD_RELOC_390_TLS_TPOFF: | |
318 | return &elf_howto_table[(int) R_390_TLS_TPOFF]; | |
bd1ea41b MS |
319 | case BFD_RELOC_390_20: |
320 | return &elf_howto_table[(int) R_390_20]; | |
321 | case BFD_RELOC_390_GOT20: | |
322 | return &elf_howto_table[(int) R_390_GOT20]; | |
323 | case BFD_RELOC_390_GOTPLT20: | |
324 | return &elf_howto_table[(int) R_390_GOTPLT20]; | |
325 | case BFD_RELOC_390_TLS_GOTIE20: | |
326 | return &elf_howto_table[(int) R_390_TLS_GOTIE20]; | |
0451c93c MS |
327 | case BFD_RELOC_VTABLE_INHERIT: |
328 | return &elf32_s390_vtinherit_howto; | |
329 | case BFD_RELOC_VTABLE_ENTRY: | |
330 | return &elf32_s390_vtentry_howto; | |
331 | default: | |
332 | break; | |
333 | } | |
a85d7ed0 NC |
334 | return 0; |
335 | } | |
336 | ||
157090f7 AM |
337 | static reloc_howto_type * |
338 | elf_s390_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED, | |
339 | const char *r_name) | |
340 | { | |
341 | unsigned int i; | |
342 | ||
343 | for (i = 0; i < sizeof (elf_howto_table) / sizeof (elf_howto_table[0]); i++) | |
344 | if (elf_howto_table[i].name != NULL | |
345 | && strcasecmp (elf_howto_table[i].name, r_name) == 0) | |
346 | return &elf_howto_table[i]; | |
347 | ||
348 | if (strcasecmp (elf32_s390_vtinherit_howto.name, r_name) == 0) | |
349 | return &elf32_s390_vtinherit_howto; | |
350 | if (strcasecmp (elf32_s390_vtentry_howto.name, r_name) == 0) | |
351 | return &elf32_s390_vtentry_howto; | |
352 | ||
353 | return NULL; | |
354 | } | |
355 | ||
a85d7ed0 NC |
356 | /* We need to use ELF32_R_TYPE so we have our own copy of this function, |
357 | and elf32-s390.c has its own copy. */ | |
358 | ||
359 | static void | |
360 | elf_s390_info_to_howto (abfd, cache_ptr, dst) | |
361 | bfd *abfd ATTRIBUTE_UNUSED; | |
362 | arelent *cache_ptr; | |
363 | Elf_Internal_Rela *dst; | |
364 | { | |
d0fb9a8d JJ |
365 | unsigned int r_type = ELF32_R_TYPE(dst->r_info); |
366 | switch (r_type) | |
a85d7ed0 NC |
367 | { |
368 | case R_390_GNU_VTINHERIT: | |
369 | cache_ptr->howto = &elf32_s390_vtinherit_howto; | |
370 | break; | |
371 | ||
372 | case R_390_GNU_VTENTRY: | |
373 | cache_ptr->howto = &elf32_s390_vtentry_howto; | |
374 | break; | |
375 | ||
376 | default: | |
d0fb9a8d JJ |
377 | if (r_type >= sizeof (elf_howto_table) / sizeof (elf_howto_table[0])) |
378 | { | |
379 | (*_bfd_error_handler) (_("%B: invalid relocation type %d"), | |
380 | abfd, (int) r_type); | |
381 | r_type = R_390_NONE; | |
382 | } | |
383 | cache_ptr->howto = &elf_howto_table[r_type]; | |
dc810e39 | 384 | } |
a85d7ed0 NC |
385 | } |
386 | ||
69fc87f1 MS |
387 | /* A relocation function which doesn't do anything. */ |
388 | static bfd_reloc_status_type | |
389 | s390_tls_reloc (abfd, reloc_entry, symbol, data, input_section, | |
26e41594 | 390 | output_bfd, error_message) |
69fc87f1 MS |
391 | bfd *abfd ATTRIBUTE_UNUSED; |
392 | arelent *reloc_entry; | |
393 | asymbol *symbol ATTRIBUTE_UNUSED; | |
394 | PTR data ATTRIBUTE_UNUSED; | |
395 | asection *input_section; | |
396 | bfd *output_bfd; | |
397 | char **error_message ATTRIBUTE_UNUSED; | |
398 | { | |
399 | if (output_bfd) | |
400 | reloc_entry->address += input_section->output_offset; | |
401 | return bfd_reloc_ok; | |
402 | } | |
403 | ||
bd1ea41b MS |
404 | /* Handle the large displacement relocs. */ |
405 | static bfd_reloc_status_type | |
406 | s390_elf_ldisp_reloc (abfd, reloc_entry, symbol, data, input_section, | |
407 | output_bfd, error_message) | |
408 | bfd *abfd ATTRIBUTE_UNUSED; | |
409 | arelent *reloc_entry; | |
410 | asymbol *symbol; | |
411 | PTR data ATTRIBUTE_UNUSED; | |
412 | asection *input_section; | |
413 | bfd *output_bfd; | |
414 | char **error_message ATTRIBUTE_UNUSED; | |
415 | { | |
416 | reloc_howto_type *howto = reloc_entry->howto; | |
417 | bfd_vma relocation; | |
418 | bfd_vma insn; | |
419 | ||
420 | if (output_bfd != (bfd *) NULL | |
421 | && (symbol->flags & BSF_SECTION_SYM) == 0 | |
422 | && (! howto->partial_inplace | |
423 | || reloc_entry->addend == 0)) | |
424 | { | |
425 | reloc_entry->address += input_section->output_offset; | |
426 | return bfd_reloc_ok; | |
427 | } | |
428 | ||
429 | if (output_bfd != NULL) | |
430 | return bfd_reloc_continue; | |
431 | ||
07515404 | 432 | if (reloc_entry->address > bfd_get_section_limit (abfd, input_section)) |
bd1ea41b MS |
433 | return bfd_reloc_outofrange; |
434 | ||
435 | relocation = (symbol->value | |
436 | + symbol->section->output_section->vma | |
437 | + symbol->section->output_offset); | |
438 | relocation += reloc_entry->addend; | |
439 | if (howto->pc_relative) | |
440 | { | |
441 | relocation -= (input_section->output_section->vma | |
442 | + input_section->output_offset); | |
443 | relocation -= reloc_entry->address; | |
444 | } | |
445 | ||
446 | insn = bfd_get_32 (abfd, (bfd_byte *) data + reloc_entry->address); | |
447 | insn |= (relocation & 0xfff) << 16 | (relocation & 0xff000) >> 4; | |
448 | bfd_put_32 (abfd, insn, (bfd_byte *) data + reloc_entry->address); | |
449 | ||
450 | if ((bfd_signed_vma) relocation < - 0x80000 | |
451 | || (bfd_signed_vma) relocation > 0x7ffff) | |
452 | return bfd_reloc_overflow; | |
453 | else | |
454 | return bfd_reloc_ok; | |
455 | } | |
456 | ||
b34976b6 | 457 | static bfd_boolean |
a85d7ed0 NC |
458 | elf_s390_is_local_label_name (abfd, name) |
459 | bfd *abfd; | |
460 | const char *name; | |
461 | { | |
462 | if (name[0] == '.' && (name[1] == 'X' || name[1] == 'L')) | |
b34976b6 | 463 | return TRUE; |
a85d7ed0 NC |
464 | |
465 | return _bfd_elf_is_local_label_name (abfd, name); | |
466 | } | |
467 | ||
468 | /* Functions for the 390 ELF linker. */ | |
469 | ||
470 | /* The name of the dynamic interpreter. This is put in the .interp | |
471 | section. */ | |
472 | ||
473 | #define ELF_DYNAMIC_INTERPRETER "/usr/lib/ld.so.1" | |
474 | ||
64285810 MS |
475 | /* If ELIMINATE_COPY_RELOCS is non-zero, the linker will try to avoid |
476 | copying dynamic variables from a shared lib into an app's dynbss | |
477 | section, and instead use a dynamic relocation to point into the | |
478 | shared lib. */ | |
479 | #define ELIMINATE_COPY_RELOCS 1 | |
480 | ||
a85d7ed0 NC |
481 | /* The size in bytes of the first entry in the procedure linkage table. */ |
482 | #define PLT_FIRST_ENTRY_SIZE 32 | |
483 | /* The size in bytes of an entry in the procedure linkage table. */ | |
dc810e39 | 484 | #define PLT_ENTRY_SIZE 32 |
a85d7ed0 NC |
485 | |
486 | #define GOT_ENTRY_SIZE 4 | |
487 | ||
488 | /* The first three entries in a procedure linkage table are reserved, | |
489 | and the initial contents are unimportant (we zero them out). | |
490 | Subsequent entries look like this. See the SVR4 ABI 386 | |
491 | supplement to see how this works. */ | |
492 | ||
493 | /* For the s390, simple addr offset can only be 0 - 4096. | |
494 | To use the full 2 GB address space, several instructions | |
495 | are needed to load an address in a register and execute | |
496 | a branch( or just saving the address) | |
497 | ||
dc810e39 | 498 | Furthermore, only r 0 and 1 are free to use!!! */ |
a85d7ed0 NC |
499 | |
500 | /* The first 3 words in the GOT are then reserved. | |
501 | Word 0 is the address of the dynamic table. | |
502 | Word 1 is a pointer to a structure describing the object | |
503 | Word 2 is used to point to the loader entry address. | |
504 | ||
4cc11e76 | 505 | The code for position independent PLT entries looks like this: |
a85d7ed0 NC |
506 | |
507 | r12 holds addr of the current GOT at entry to the PLT | |
508 | ||
509 | The GOT holds the address in the PLT to be executed. | |
510 | The loader then gets: | |
511 | 24(15) = Pointer to the structure describing the object. | |
dc810e39 | 512 | 28(15) = Offset in symbol table |
a85d7ed0 NC |
513 | |
514 | The loader must then find the module where the function is | |
515 | and insert the address in the GOT. | |
516 | ||
517 | Note: 390 can only address +- 64 K relative. | |
518 | We check if offset > 65536, then make a relative branch -64xxx | |
519 | back to a previous defined branch | |
520 | ||
521 | PLT1: BASR 1,0 # 2 bytes | |
522 | L 1,22(1) # 4 bytes Load offset in GOT in r 1 | |
523 | L 1,(1,12) # 4 bytes Load address from GOT in r1 | |
524 | BCR 15,1 # 2 bytes Jump to address | |
525 | RET1: BASR 1,0 # 2 bytes Return from GOT 1st time | |
526 | L 1,14(1) # 4 bytes Load offset in symol table in r1 | |
527 | BRC 15,-x # 4 bytes Jump to start of PLT | |
528 | .word 0 # 2 bytes filler | |
529 | .long ? # 4 bytes offset in GOT | |
530 | .long ? # 4 bytes offset into symbol table | |
531 | ||
532 | This was the general case. There are two additional, optimizes PLT | |
533 | definitions. One for GOT offsets < 4096 and one for GOT offsets < 32768. | |
534 | First the one for GOT offsets < 4096: | |
535 | ||
536 | PLT1: L 1,<offset>(12) # 4 bytes Load address from GOT in R1 | |
537 | BCR 15,1 # 2 bytes Jump to address | |
538 | .word 0,0,0 # 6 bytes filler | |
539 | RET1: BASR 1,0 # 2 bytes Return from GOT 1st time | |
540 | L 1,14(1) # 4 bytes Load offset in symbol table in r1 | |
541 | BRC 15,-x # 4 bytes Jump to start of PLT | |
542 | .word 0,0,0 # 6 bytes filler | |
543 | .long ? # 4 bytes offset into symbol table | |
544 | ||
545 | Second the one for GOT offsets < 32768: | |
546 | ||
547 | PLT1: LHI 1,<offset> # 4 bytes Load offset in GOT to r1 | |
548 | L 1,(1,12) # 4 bytes Load address from GOT to r1 | |
549 | BCR 15,1 # 2 bytes Jump to address | |
550 | .word 0 # 2 bytes filler | |
551 | RET1: BASR 1,0 # 2 bytes Return from GOT 1st time | |
552 | L 1,14(1) # 4 bytes Load offset in symbol table in r1 | |
553 | BRC 15,-x # 4 bytes Jump to start of PLT | |
554 | .word 0,0,0 # 6 bytes filler | |
555 | .long ? # 4 bytes offset into symbol table | |
556 | ||
557 | Total = 32 bytes per PLT entry | |
558 | ||
559 | The code for static build PLT entries looks like this: | |
560 | ||
561 | PLT1: BASR 1,0 # 2 bytes | |
562 | L 1,22(1) # 4 bytes Load address of GOT entry | |
563 | L 1,0(0,1) # 4 bytes Load address from GOT in r1 | |
564 | BCR 15,1 # 2 bytes Jump to address | |
565 | RET1: BASR 1,0 # 2 bytes Return from GOT 1st time | |
566 | L 1,14(1) # 4 bytes Load offset in symbol table in r1 | |
567 | BRC 15,-x # 4 bytes Jump to start of PLT | |
568 | .word 0 # 2 bytes filler | |
569 | .long ? # 4 bytes address of GOT entry | |
570 | .long ? # 4 bytes offset into symbol table */ | |
571 | ||
572 | #define PLT_PIC_ENTRY_WORD0 0x0d105810 | |
573 | #define PLT_PIC_ENTRY_WORD1 0x10165811 | |
574 | #define PLT_PIC_ENTRY_WORD2 0xc00007f1 | |
575 | #define PLT_PIC_ENTRY_WORD3 0x0d105810 | |
576 | #define PLT_PIC_ENTRY_WORD4 0x100ea7f4 | |
577 | ||
578 | #define PLT_PIC12_ENTRY_WORD0 0x5810c000 | |
579 | #define PLT_PIC12_ENTRY_WORD1 0x07f10000 | |
580 | #define PLT_PIC12_ENTRY_WORD2 0x00000000 | |
581 | #define PLT_PIC12_ENTRY_WORD3 0x0d105810 | |
582 | #define PLT_PIC12_ENTRY_WORD4 0x100ea7f4 | |
583 | ||
584 | #define PLT_PIC16_ENTRY_WORD0 0xa7180000 | |
585 | #define PLT_PIC16_ENTRY_WORD1 0x5811c000 | |
586 | #define PLT_PIC16_ENTRY_WORD2 0x07f10000 | |
587 | #define PLT_PIC16_ENTRY_WORD3 0x0d105810 | |
588 | #define PLT_PIC16_ENTRY_WORD4 0x100ea7f4 | |
589 | ||
590 | #define PLT_ENTRY_WORD0 0x0d105810 | |
591 | #define PLT_ENTRY_WORD1 0x10165810 | |
592 | #define PLT_ENTRY_WORD2 0x100007f1 | |
593 | #define PLT_ENTRY_WORD3 0x0d105810 | |
594 | #define PLT_ENTRY_WORD4 0x100ea7f4 | |
595 | ||
596 | /* The first PLT entry pushes the offset into the symbol table | |
597 | from R1 onto the stack at 8(15) and the loader object info | |
598 | at 12(15), loads the loader address in R1 and jumps to it. */ | |
599 | ||
600 | /* The first entry in the PLT for PIC code: | |
601 | ||
602 | PLT0: | |
603 | ST 1,28(15) # R1 has offset into symbol table | |
604 | L 1,4(12) # Get loader ino(object struct address) | |
dc810e39 | 605 | ST 1,24(15) # Store address |
a85d7ed0 NC |
606 | L 1,8(12) # Entry address of loader in R1 |
607 | BR 1 # Jump to loader | |
608 | ||
609 | The first entry in the PLT for static code: | |
610 | ||
611 | PLT0: | |
612 | ST 1,28(15) # R1 has offset into symbol table | |
613 | BASR 1,0 | |
614 | L 1,18(0,1) # Get address of GOT | |
615 | MVC 24(4,15),4(1) # Move loader ino to stack | |
616 | L 1,8(1) # Get address of loader | |
617 | BR 1 # Jump to loader | |
618 | .word 0 # filler | |
619 | .long got # address of GOT */ | |
620 | ||
621 | #define PLT_PIC_FIRST_ENTRY_WORD0 0x5010f01c | |
622 | #define PLT_PIC_FIRST_ENTRY_WORD1 0x5810c004 | |
623 | #define PLT_PIC_FIRST_ENTRY_WORD2 0x5010f018 | |
624 | #define PLT_PIC_FIRST_ENTRY_WORD3 0x5810c008 | |
625 | #define PLT_PIC_FIRST_ENTRY_WORD4 0x07f10000 | |
626 | ||
627 | #define PLT_FIRST_ENTRY_WORD0 0x5010f01c | |
628 | #define PLT_FIRST_ENTRY_WORD1 0x0d105810 | |
629 | #define PLT_FIRST_ENTRY_WORD2 0x1012D203 | |
630 | #define PLT_FIRST_ENTRY_WORD3 0xf0181004 | |
631 | #define PLT_FIRST_ENTRY_WORD4 0x58101008 | |
632 | #define PLT_FIRST_ENTRY_WORD5 0x07f10000 | |
633 | ||
634 | /* The s390 linker needs to keep track of the number of relocs that it | |
0451c93c MS |
635 | decides to copy as dynamic relocs in check_relocs for each symbol. |
636 | This is so that it can later discard them if they are found to be | |
637 | unnecessary. We store the information in a field extending the | |
638 | regular ELF linker hash table. */ | |
a85d7ed0 | 639 | |
0451c93c | 640 | struct elf_s390_dyn_relocs |
a85d7ed0 | 641 | { |
0451c93c MS |
642 | struct elf_s390_dyn_relocs *next; |
643 | ||
644 | /* The input section of the reloc. */ | |
645 | asection *sec; | |
646 | ||
647 | /* Total number of relocs copied for the input section. */ | |
a85d7ed0 | 648 | bfd_size_type count; |
0451c93c MS |
649 | |
650 | /* Number of pc-relative relocs copied for the input section. */ | |
651 | bfd_size_type pc_count; | |
a85d7ed0 NC |
652 | }; |
653 | ||
654 | /* s390 ELF linker hash entry. */ | |
655 | ||
656 | struct elf_s390_link_hash_entry | |
657 | { | |
0451c93c | 658 | struct elf_link_hash_entry elf; |
a85d7ed0 | 659 | |
0451c93c MS |
660 | /* Track dynamic relocs copied for this symbol. */ |
661 | struct elf_s390_dyn_relocs *dyn_relocs; | |
5236c819 MS |
662 | |
663 | /* Number of GOTPLT references for a function. */ | |
664 | bfd_signed_vma gotplt_refcount; | |
69fc87f1 MS |
665 | |
666 | #define GOT_UNKNOWN 0 | |
667 | #define GOT_NORMAL 1 | |
668 | #define GOT_TLS_GD 2 | |
669 | #define GOT_TLS_IE 3 | |
670 | #define GOT_TLS_IE_NLT 4 | |
671 | unsigned char tls_type; | |
a85d7ed0 NC |
672 | }; |
673 | ||
69fc87f1 MS |
674 | #define elf_s390_hash_entry(ent) \ |
675 | ((struct elf_s390_link_hash_entry *)(ent)) | |
676 | ||
677 | struct elf_s390_obj_tdata | |
678 | { | |
679 | struct elf_obj_tdata root; | |
680 | ||
681 | /* tls_type for each local got entry. */ | |
682 | char *local_got_tls_type; | |
683 | }; | |
684 | ||
685 | #define elf_s390_tdata(abfd) \ | |
686 | ((struct elf_s390_obj_tdata *) (abfd)->tdata.any) | |
687 | ||
688 | #define elf_s390_local_got_tls_type(abfd) \ | |
689 | (elf_s390_tdata (abfd)->local_got_tls_type) | |
690 | ||
691 | static bfd_boolean | |
62d7a5f6 | 692 | elf_s390_mkobject (bfd *abfd) |
69fc87f1 | 693 | { |
69fc87f1 | 694 | if (abfd->tdata.any == NULL) |
62d7a5f6 AM |
695 | { |
696 | bfd_size_type amt = sizeof (struct elf_s390_obj_tdata); | |
697 | abfd->tdata.any = bfd_zalloc (abfd, amt); | |
698 | if (abfd->tdata.any == NULL) | |
699 | return FALSE; | |
700 | } | |
701 | return bfd_elf_mkobject (abfd); | |
69fc87f1 MS |
702 | } |
703 | ||
704 | static bfd_boolean | |
705 | elf_s390_object_p (abfd) | |
706 | bfd *abfd; | |
707 | { | |
69fc87f1 MS |
708 | /* Set the right machine number for an s390 elf32 file. */ |
709 | return bfd_default_set_arch_mach (abfd, bfd_arch_s390, bfd_mach_s390_31); | |
710 | } | |
711 | ||
a85d7ed0 NC |
712 | /* s390 ELF linker hash table. */ |
713 | ||
714 | struct elf_s390_link_hash_table | |
715 | { | |
0451c93c | 716 | struct elf_link_hash_table elf; |
a85d7ed0 | 717 | |
0451c93c MS |
718 | /* Short-cuts to get to dynamic linker sections. */ |
719 | asection *sgot; | |
720 | asection *sgotplt; | |
721 | asection *srelgot; | |
722 | asection *splt; | |
723 | asection *srelplt; | |
724 | asection *sdynbss; | |
725 | asection *srelbss; | |
ec338859 | 726 | |
69fc87f1 MS |
727 | union { |
728 | bfd_signed_vma refcount; | |
729 | bfd_vma offset; | |
730 | } tls_ldm_got; | |
731 | ||
ec338859 AM |
732 | /* Small local sym to section mapping cache. */ |
733 | struct sym_sec_cache sym_sec; | |
0451c93c | 734 | }; |
a85d7ed0 NC |
735 | |
736 | /* Get the s390 ELF linker hash table from a link_info structure. */ | |
737 | ||
738 | #define elf_s390_hash_table(p) \ | |
739 | ((struct elf_s390_link_hash_table *) ((p)->hash)) | |
740 | ||
741 | /* Create an entry in an s390 ELF linker hash table. */ | |
742 | ||
743 | static struct bfd_hash_entry * | |
0451c93c | 744 | link_hash_newfunc (entry, table, string) |
a85d7ed0 NC |
745 | struct bfd_hash_entry *entry; |
746 | struct bfd_hash_table *table; | |
747 | const char *string; | |
748 | { | |
a85d7ed0 NC |
749 | /* Allocate the structure if it has not already been allocated by a |
750 | subclass. */ | |
0451c93c MS |
751 | if (entry == NULL) |
752 | { | |
753 | entry = bfd_hash_allocate (table, | |
754 | sizeof (struct elf_s390_link_hash_entry)); | |
755 | if (entry == NULL) | |
756 | return entry; | |
757 | } | |
ec338859 | 758 | |
a85d7ed0 | 759 | /* Call the allocation method of the superclass. */ |
0451c93c MS |
760 | entry = _bfd_elf_link_hash_newfunc (entry, table, string); |
761 | if (entry != NULL) | |
a85d7ed0 | 762 | { |
0451c93c | 763 | struct elf_s390_link_hash_entry *eh; |
ec338859 | 764 | |
0451c93c MS |
765 | eh = (struct elf_s390_link_hash_entry *) entry; |
766 | eh->dyn_relocs = NULL; | |
5236c819 | 767 | eh->gotplt_refcount = 0; |
69fc87f1 | 768 | eh->tls_type = GOT_UNKNOWN; |
a85d7ed0 NC |
769 | } |
770 | ||
0451c93c | 771 | return entry; |
a85d7ed0 NC |
772 | } |
773 | ||
774 | /* Create an s390 ELF linker hash table. */ | |
775 | ||
776 | static struct bfd_link_hash_table * | |
777 | elf_s390_link_hash_table_create (abfd) | |
778 | bfd *abfd; | |
779 | { | |
780 | struct elf_s390_link_hash_table *ret; | |
dc810e39 | 781 | bfd_size_type amt = sizeof (struct elf_s390_link_hash_table); |
a85d7ed0 | 782 | |
e2d34d7d | 783 | ret = (struct elf_s390_link_hash_table *) bfd_malloc (amt); |
0451c93c | 784 | if (ret == NULL) |
a85d7ed0 NC |
785 | return NULL; |
786 | ||
66eb6687 AM |
787 | if (!_bfd_elf_link_hash_table_init (&ret->elf, abfd, link_hash_newfunc, |
788 | sizeof (struct elf_s390_link_hash_entry))) | |
a85d7ed0 | 789 | { |
e2d34d7d | 790 | free (ret); |
a85d7ed0 NC |
791 | return NULL; |
792 | } | |
793 | ||
0451c93c MS |
794 | ret->sgot = NULL; |
795 | ret->sgotplt = NULL; | |
796 | ret->srelgot = NULL; | |
797 | ret->splt = NULL; | |
798 | ret->srelplt = NULL; | |
799 | ret->sdynbss = NULL; | |
800 | ret->srelbss = NULL; | |
69fc87f1 | 801 | ret->tls_ldm_got.refcount = 0; |
ec338859 | 802 | ret->sym_sec.abfd = NULL; |
0451c93c MS |
803 | |
804 | return &ret->elf.root; | |
805 | } | |
806 | ||
807 | /* Create .got, .gotplt, and .rela.got sections in DYNOBJ, and set up | |
808 | shortcuts to them in our hash table. */ | |
809 | ||
b34976b6 | 810 | static bfd_boolean |
0451c93c MS |
811 | create_got_section (dynobj, info) |
812 | bfd *dynobj; | |
813 | struct bfd_link_info *info; | |
814 | { | |
815 | struct elf_s390_link_hash_table *htab; | |
816 | ||
817 | if (! _bfd_elf_create_got_section (dynobj, info)) | |
b34976b6 | 818 | return FALSE; |
0451c93c MS |
819 | |
820 | htab = elf_s390_hash_table (info); | |
821 | htab->sgot = bfd_get_section_by_name (dynobj, ".got"); | |
822 | htab->sgotplt = bfd_get_section_by_name (dynobj, ".got.plt"); | |
823 | if (!htab->sgot || !htab->sgotplt) | |
824 | abort (); | |
825 | ||
3496cb2a L |
826 | htab->srelgot = bfd_make_section_with_flags (dynobj, ".rela.got", |
827 | (SEC_ALLOC | SEC_LOAD | |
828 | | SEC_HAS_CONTENTS | |
829 | | SEC_IN_MEMORY | |
830 | | SEC_LINKER_CREATED | |
831 | | SEC_READONLY)); | |
0451c93c | 832 | if (htab->srelgot == NULL |
0451c93c | 833 | || ! bfd_set_section_alignment (dynobj, htab->srelgot, 2)) |
b34976b6 AM |
834 | return FALSE; |
835 | return TRUE; | |
0451c93c MS |
836 | } |
837 | ||
838 | /* Create .plt, .rela.plt, .got, .got.plt, .rela.got, .dynbss, and | |
839 | .rela.bss sections in DYNOBJ, and set up shortcuts to them in our | |
840 | hash table. */ | |
841 | ||
b34976b6 | 842 | static bfd_boolean |
0451c93c MS |
843 | elf_s390_create_dynamic_sections (dynobj, info) |
844 | bfd *dynobj; | |
845 | struct bfd_link_info *info; | |
846 | { | |
847 | struct elf_s390_link_hash_table *htab; | |
848 | ||
849 | htab = elf_s390_hash_table (info); | |
850 | if (!htab->sgot && !create_got_section (dynobj, info)) | |
b34976b6 | 851 | return FALSE; |
0451c93c MS |
852 | |
853 | if (!_bfd_elf_create_dynamic_sections (dynobj, info)) | |
b34976b6 | 854 | return FALSE; |
0451c93c MS |
855 | |
856 | htab->splt = bfd_get_section_by_name (dynobj, ".plt"); | |
857 | htab->srelplt = bfd_get_section_by_name (dynobj, ".rela.plt"); | |
858 | htab->sdynbss = bfd_get_section_by_name (dynobj, ".dynbss"); | |
859 | if (!info->shared) | |
860 | htab->srelbss = bfd_get_section_by_name (dynobj, ".rela.bss"); | |
861 | ||
862 | if (!htab->splt || !htab->srelplt || !htab->sdynbss | |
863 | || (!info->shared && !htab->srelbss)) | |
864 | abort (); | |
865 | ||
b34976b6 | 866 | return TRUE; |
a85d7ed0 NC |
867 | } |
868 | ||
0451c93c MS |
869 | /* Copy the extra info we tack onto an elf_link_hash_entry. */ |
870 | ||
871 | static void | |
fcfa13d2 AM |
872 | elf_s390_copy_indirect_symbol (info, dir, ind) |
873 | struct bfd_link_info *info; | |
0451c93c MS |
874 | struct elf_link_hash_entry *dir, *ind; |
875 | { | |
876 | struct elf_s390_link_hash_entry *edir, *eind; | |
877 | ||
878 | edir = (struct elf_s390_link_hash_entry *) dir; | |
879 | eind = (struct elf_s390_link_hash_entry *) ind; | |
880 | ||
881 | if (eind->dyn_relocs != NULL) | |
882 | { | |
883 | if (edir->dyn_relocs != NULL) | |
884 | { | |
885 | struct elf_s390_dyn_relocs **pp; | |
886 | struct elf_s390_dyn_relocs *p; | |
887 | ||
fcfa13d2 | 888 | /* Add reloc counts against the indirect sym to the direct sym |
0451c93c MS |
889 | list. Merge any entries against the same section. */ |
890 | for (pp = &eind->dyn_relocs; (p = *pp) != NULL; ) | |
891 | { | |
892 | struct elf_s390_dyn_relocs *q; | |
893 | ||
894 | for (q = edir->dyn_relocs; q != NULL; q = q->next) | |
895 | if (q->sec == p->sec) | |
896 | { | |
897 | q->pc_count += p->pc_count; | |
898 | q->count += p->count; | |
899 | *pp = p->next; | |
900 | break; | |
901 | } | |
902 | if (q == NULL) | |
903 | pp = &p->next; | |
904 | } | |
905 | *pp = edir->dyn_relocs; | |
906 | } | |
907 | ||
908 | edir->dyn_relocs = eind->dyn_relocs; | |
909 | eind->dyn_relocs = NULL; | |
910 | } | |
911 | ||
69fc87f1 MS |
912 | if (ind->root.type == bfd_link_hash_indirect |
913 | && dir->got.refcount <= 0) | |
914 | { | |
915 | edir->tls_type = eind->tls_type; | |
916 | eind->tls_type = GOT_UNKNOWN; | |
917 | } | |
918 | ||
64285810 MS |
919 | if (ELIMINATE_COPY_RELOCS |
920 | && ind->root.type != bfd_link_hash_indirect | |
f5385ebf AM |
921 | && dir->dynamic_adjusted) |
922 | { | |
923 | /* If called to transfer flags for a weakdef during processing | |
924 | of elf_adjust_dynamic_symbol, don't copy non_got_ref. | |
925 | We clear it ourselves for ELIMINATE_COPY_RELOCS. */ | |
926 | dir->ref_dynamic |= ind->ref_dynamic; | |
927 | dir->ref_regular |= ind->ref_regular; | |
928 | dir->ref_regular_nonweak |= ind->ref_regular_nonweak; | |
929 | dir->needs_plt |= ind->needs_plt; | |
930 | } | |
64285810 | 931 | else |
fcfa13d2 | 932 | _bfd_elf_link_hash_copy_indirect (info, dir, ind); |
0451c93c | 933 | } |
a85d7ed0 | 934 | |
69fc87f1 MS |
935 | static int |
936 | elf_s390_tls_transition (info, r_type, is_local) | |
937 | struct bfd_link_info *info; | |
938 | int r_type; | |
939 | int is_local; | |
940 | { | |
941 | if (info->shared) | |
942 | return r_type; | |
943 | ||
944 | switch (r_type) | |
945 | { | |
946 | case R_390_TLS_GD32: | |
947 | case R_390_TLS_IE32: | |
948 | if (is_local) | |
949 | return R_390_TLS_LE32; | |
950 | return R_390_TLS_IE32; | |
951 | case R_390_TLS_GOTIE32: | |
952 | if (is_local) | |
953 | return R_390_TLS_LE32; | |
954 | return R_390_TLS_GOTIE32; | |
955 | case R_390_TLS_LDM32: | |
956 | return R_390_TLS_LE32; | |
957 | } | |
958 | ||
959 | return r_type; | |
960 | } | |
961 | ||
a85d7ed0 NC |
962 | /* Look through the relocs for a section during the first phase, and |
963 | allocate space in the global offset table or procedure linkage | |
964 | table. */ | |
965 | ||
b34976b6 | 966 | static bfd_boolean |
a85d7ed0 NC |
967 | elf_s390_check_relocs (abfd, info, sec, relocs) |
968 | bfd *abfd; | |
969 | struct bfd_link_info *info; | |
970 | asection *sec; | |
971 | const Elf_Internal_Rela *relocs; | |
972 | { | |
0451c93c | 973 | struct elf_s390_link_hash_table *htab; |
a85d7ed0 NC |
974 | Elf_Internal_Shdr *symtab_hdr; |
975 | struct elf_link_hash_entry **sym_hashes; | |
a85d7ed0 NC |
976 | const Elf_Internal_Rela *rel; |
977 | const Elf_Internal_Rela *rel_end; | |
a85d7ed0 | 978 | asection *sreloc; |
5236c819 | 979 | bfd_signed_vma *local_got_refcounts; |
69fc87f1 | 980 | int tls_type, old_tls_type; |
a85d7ed0 | 981 | |
1049f94e | 982 | if (info->relocatable) |
b34976b6 | 983 | return TRUE; |
a85d7ed0 | 984 | |
0451c93c | 985 | htab = elf_s390_hash_table (info); |
a85d7ed0 NC |
986 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; |
987 | sym_hashes = elf_sym_hashes (abfd); | |
5236c819 | 988 | local_got_refcounts = elf_local_got_refcounts (abfd); |
a85d7ed0 | 989 | |
a85d7ed0 NC |
990 | sreloc = NULL; |
991 | ||
992 | rel_end = relocs + sec->reloc_count; | |
993 | for (rel = relocs; rel < rel_end; rel++) | |
994 | { | |
69fc87f1 | 995 | unsigned int r_type; |
a85d7ed0 NC |
996 | unsigned long r_symndx; |
997 | struct elf_link_hash_entry *h; | |
998 | ||
999 | r_symndx = ELF32_R_SYM (rel->r_info); | |
1000 | ||
0451c93c MS |
1001 | if (r_symndx >= NUM_SHDR_ENTRIES (symtab_hdr)) |
1002 | { | |
d003868e AM |
1003 | (*_bfd_error_handler) (_("%B: bad symbol index: %d"), |
1004 | abfd, r_symndx); | |
b34976b6 | 1005 | return FALSE; |
0451c93c MS |
1006 | } |
1007 | ||
a85d7ed0 NC |
1008 | if (r_symndx < symtab_hdr->sh_info) |
1009 | h = NULL; | |
1010 | else | |
973a3492 L |
1011 | { |
1012 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
1013 | while (h->root.type == bfd_link_hash_indirect | |
1014 | || h->root.type == bfd_link_hash_warning) | |
1015 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
1016 | } | |
a85d7ed0 | 1017 | |
5236c819 MS |
1018 | /* Create got section and local_got_refcounts array if they |
1019 | are needed. */ | |
69fc87f1 MS |
1020 | r_type = elf_s390_tls_transition (info, |
1021 | ELF32_R_TYPE (rel->r_info), | |
1022 | h == NULL); | |
1023 | switch (r_type) | |
a85d7ed0 NC |
1024 | { |
1025 | case R_390_GOT12: | |
5236c819 | 1026 | case R_390_GOT16: |
bd1ea41b | 1027 | case R_390_GOT20: |
a85d7ed0 | 1028 | case R_390_GOT32: |
befc3abb | 1029 | case R_390_GOTENT: |
5236c819 MS |
1030 | case R_390_GOTPLT12: |
1031 | case R_390_GOTPLT16: | |
bd1ea41b | 1032 | case R_390_GOTPLT20: |
5236c819 MS |
1033 | case R_390_GOTPLT32: |
1034 | case R_390_GOTPLTENT: | |
69fc87f1 MS |
1035 | case R_390_TLS_GD32: |
1036 | case R_390_TLS_GOTIE12: | |
bd1ea41b | 1037 | case R_390_TLS_GOTIE20: |
69fc87f1 MS |
1038 | case R_390_TLS_GOTIE32: |
1039 | case R_390_TLS_IEENT: | |
1040 | case R_390_TLS_IE32: | |
1041 | case R_390_TLS_LDM32: | |
5236c819 MS |
1042 | if (h == NULL |
1043 | && local_got_refcounts == NULL) | |
a85d7ed0 | 1044 | { |
5236c819 | 1045 | bfd_size_type size; |
26e41594 | 1046 | |
5236c819 | 1047 | size = symtab_hdr->sh_info; |
69fc87f1 | 1048 | size *= (sizeof (bfd_signed_vma) + sizeof(char)); |
5236c819 MS |
1049 | local_got_refcounts = ((bfd_signed_vma *) |
1050 | bfd_zalloc (abfd, size)); | |
a85d7ed0 | 1051 | if (local_got_refcounts == NULL) |
5236c819 MS |
1052 | return FALSE; |
1053 | elf_local_got_refcounts (abfd) = local_got_refcounts; | |
69fc87f1 MS |
1054 | elf_s390_local_got_tls_type (abfd) |
1055 | = (char *) (local_got_refcounts + symtab_hdr->sh_info); | |
a85d7ed0 | 1056 | } |
5236c819 MS |
1057 | /* Fall through. */ |
1058 | case R_390_GOTOFF16: | |
1059 | case R_390_GOTOFF32: | |
0451c93c | 1060 | case R_390_GOTPC: |
befc3abb | 1061 | case R_390_GOTPCDBL: |
0451c93c MS |
1062 | if (htab->sgot == NULL) |
1063 | { | |
1064 | if (htab->elf.dynobj == NULL) | |
1065 | htab->elf.dynobj = abfd; | |
1066 | if (!create_got_section (htab->elf.dynobj, info)) | |
b34976b6 | 1067 | return FALSE; |
0451c93c | 1068 | } |
5236c819 MS |
1069 | } |
1070 | ||
69fc87f1 | 1071 | switch (r_type) |
5236c819 | 1072 | { |
5236c819 MS |
1073 | case R_390_GOTOFF16: |
1074 | case R_390_GOTOFF32: | |
1075 | case R_390_GOTPC: | |
1076 | case R_390_GOTPCDBL: | |
1077 | /* Got is created, nothing to be done. */ | |
a85d7ed0 NC |
1078 | break; |
1079 | ||
26e41594 AM |
1080 | case R_390_PLT16DBL: |
1081 | case R_390_PLT32DBL: | |
a85d7ed0 | 1082 | case R_390_PLT32: |
5236c819 MS |
1083 | case R_390_PLTOFF16: |
1084 | case R_390_PLTOFF32: | |
a85d7ed0 | 1085 | /* This symbol requires a procedure linkage table entry. We |
26e41594 AM |
1086 | actually build the entry in adjust_dynamic_symbol, |
1087 | because this might be a case of linking PIC code which is | |
1088 | never referenced by a dynamic object, in which case we | |
1089 | don't need to generate a procedure linkage table entry | |
1090 | after all. */ | |
a85d7ed0 NC |
1091 | |
1092 | /* If this is a local symbol, we resolve it directly without | |
26e41594 | 1093 | creating a procedure linkage table entry. */ |
5236c819 MS |
1094 | if (h != NULL) |
1095 | { | |
f5385ebf | 1096 | h->needs_plt = 1; |
5236c819 MS |
1097 | h->plt.refcount += 1; |
1098 | } | |
1099 | break; | |
a85d7ed0 | 1100 | |
5236c819 MS |
1101 | case R_390_GOTPLT12: |
1102 | case R_390_GOTPLT16: | |
bd1ea41b | 1103 | case R_390_GOTPLT20: |
5236c819 MS |
1104 | case R_390_GOTPLT32: |
1105 | case R_390_GOTPLTENT: | |
1106 | /* This symbol requires either a procedure linkage table entry | |
1107 | or an entry in the local got. We actually build the entry | |
1108 | in adjust_dynamic_symbol because whether this is really a | |
1109 | global reference can change and with it the fact if we have | |
1110 | to create a plt entry or a local got entry. To be able to | |
1111 | make a once global symbol a local one we have to keep track | |
1112 | of the number of gotplt references that exist for this | |
1113 | symbol. */ | |
1114 | if (h != NULL) | |
1115 | { | |
1116 | ((struct elf_s390_link_hash_entry *) h)->gotplt_refcount++; | |
f5385ebf | 1117 | h->needs_plt = 1; |
5236c819 MS |
1118 | h->plt.refcount += 1; |
1119 | } | |
1120 | else | |
1121 | local_got_refcounts[r_symndx] += 1; | |
a85d7ed0 NC |
1122 | break; |
1123 | ||
69fc87f1 MS |
1124 | case R_390_TLS_LDM32: |
1125 | htab->tls_ldm_got.refcount += 1; | |
1126 | break; | |
1127 | ||
1128 | case R_390_TLS_IE32: | |
1129 | case R_390_TLS_GOTIE12: | |
bd1ea41b | 1130 | case R_390_TLS_GOTIE20: |
69fc87f1 MS |
1131 | case R_390_TLS_GOTIE32: |
1132 | case R_390_TLS_IEENT: | |
1133 | if (info->shared) | |
1134 | info->flags |= DF_STATIC_TLS; | |
ae9a127f | 1135 | /* Fall through. */ |
69fc87f1 MS |
1136 | |
1137 | case R_390_GOT12: | |
26e41594 | 1138 | case R_390_GOT16: |
bd1ea41b | 1139 | case R_390_GOT20: |
69fc87f1 MS |
1140 | case R_390_GOT32: |
1141 | case R_390_GOTENT: | |
1142 | case R_390_TLS_GD32: | |
1143 | /* This symbol requires a global offset table entry. */ | |
1144 | switch (r_type) | |
1145 | { | |
1146 | default: | |
1147 | case R_390_GOT12: | |
1148 | case R_390_GOT16: | |
bd1ea41b | 1149 | case R_390_GOT20: |
69fc87f1 MS |
1150 | case R_390_GOT32: |
1151 | case R_390_GOTENT: | |
1152 | tls_type = GOT_NORMAL; | |
1153 | break; | |
1154 | case R_390_TLS_GD32: | |
1155 | tls_type = GOT_TLS_GD; | |
1156 | break; | |
1157 | case R_390_TLS_IE32: | |
1158 | case R_390_TLS_GOTIE32: | |
1159 | tls_type = GOT_TLS_IE; | |
1160 | break; | |
1161 | case R_390_TLS_GOTIE12: | |
bd1ea41b | 1162 | case R_390_TLS_GOTIE20: |
69fc87f1 MS |
1163 | case R_390_TLS_IEENT: |
1164 | tls_type = GOT_TLS_IE_NLT; | |
1165 | break; | |
1166 | } | |
1167 | ||
1168 | if (h != NULL) | |
1169 | { | |
1170 | h->got.refcount += 1; | |
1171 | old_tls_type = elf_s390_hash_entry(h)->tls_type; | |
1172 | } | |
1173 | else | |
1174 | { | |
1175 | local_got_refcounts[r_symndx] += 1; | |
1176 | old_tls_type = elf_s390_local_got_tls_type (abfd) [r_symndx]; | |
1177 | } | |
1178 | /* If a TLS symbol is accessed using IE at least once, | |
1179 | there is no point to use dynamic model for it. */ | |
1180 | if (old_tls_type != tls_type && old_tls_type != GOT_UNKNOWN) | |
1181 | { | |
1182 | if (old_tls_type == GOT_NORMAL || tls_type == GOT_NORMAL) | |
1183 | { | |
1184 | (*_bfd_error_handler) | |
d003868e AM |
1185 | (_("%B: `%s' accessed both as normal and thread local symbol"), |
1186 | abfd, h->root.root.string); | |
69fc87f1 MS |
1187 | return FALSE; |
1188 | } | |
1189 | if (old_tls_type > tls_type) | |
1190 | tls_type = old_tls_type; | |
1191 | } | |
1192 | ||
1193 | if (old_tls_type != tls_type) | |
1194 | { | |
1195 | if (h != NULL) | |
1196 | elf_s390_hash_entry (h)->tls_type = tls_type; | |
1197 | else | |
1198 | elf_s390_local_got_tls_type (abfd) [r_symndx] = tls_type; | |
1199 | } | |
1200 | ||
1201 | if (r_type != R_390_TLS_IE32) | |
1202 | break; | |
ae9a127f | 1203 | /* Fall through. */ |
69fc87f1 MS |
1204 | |
1205 | case R_390_TLS_LE32: | |
1206 | if (!info->shared) | |
1207 | break; | |
1208 | info->flags |= DF_STATIC_TLS; | |
ae9a127f | 1209 | /* Fall through. */ |
69fc87f1 | 1210 | |
26e41594 AM |
1211 | case R_390_8: |
1212 | case R_390_16: | |
a85d7ed0 | 1213 | case R_390_32: |
26e41594 AM |
1214 | case R_390_PC16: |
1215 | case R_390_PC16DBL: | |
befc3abb | 1216 | case R_390_PC32DBL: |
a85d7ed0 | 1217 | case R_390_PC32: |
0451c93c MS |
1218 | if (h != NULL && !info->shared) |
1219 | { | |
1220 | /* If this reloc is in a read-only section, we might | |
1221 | need a copy reloc. We can't check reliably at this | |
1222 | stage whether the section is read-only, as input | |
1223 | sections have not yet been mapped to output sections. | |
1224 | Tentatively set the flag for now, and correct in | |
1225 | adjust_dynamic_symbol. */ | |
f5385ebf | 1226 | h->non_got_ref = 1; |
ec338859 | 1227 | |
0451c93c MS |
1228 | /* We may need a .plt entry if the function this reloc |
1229 | refers to is in a shared lib. */ | |
1230 | h->plt.refcount += 1; | |
1231 | } | |
a85d7ed0 NC |
1232 | |
1233 | /* If we are creating a shared library, and this is a reloc | |
0451c93c MS |
1234 | against a global symbol, or a non PC relative reloc |
1235 | against a local symbol, then we need to copy the reloc | |
1236 | into the shared library. However, if we are linking with | |
1237 | -Bsymbolic, we do not need to copy a reloc against a | |
1238 | global symbol which is defined in an object we are | |
1239 | including in the link (i.e., DEF_REGULAR is set). At | |
1240 | this point we have not seen all the input files, so it is | |
1241 | possible that DEF_REGULAR is not set now but will be set | |
1242 | later (it is never cleared). In case of a weak definition, | |
1243 | DEF_REGULAR may be cleared later by a strong definition in | |
1244 | a shared library. We account for that possibility below by | |
1245 | storing information in the relocs_copied field of the hash | |
1246 | table entry. A similar situation occurs when creating | |
1247 | shared libraries and symbol visibility changes render the | |
1248 | symbol local. | |
1249 | ||
1250 | If on the other hand, we are creating an executable, we | |
1251 | may need to keep relocations for symbols satisfied by a | |
1252 | dynamic library if we manage to avoid copy relocs for the | |
1253 | symbol. */ | |
1254 | if ((info->shared | |
1255 | && (sec->flags & SEC_ALLOC) != 0 | |
ec338859 | 1256 | && ((ELF32_R_TYPE (rel->r_info) != R_390_PC16 |
0451c93c | 1257 | && ELF32_R_TYPE (rel->r_info) != R_390_PC16DBL |
befc3abb | 1258 | && ELF32_R_TYPE (rel->r_info) != R_390_PC32DBL |
0451c93c MS |
1259 | && ELF32_R_TYPE (rel->r_info) != R_390_PC32) |
1260 | || (h != NULL | |
1261 | && (! info->symbolic | |
1262 | || h->root.type == bfd_link_hash_defweak | |
f5385ebf | 1263 | || !h->def_regular)))) |
64285810 MS |
1264 | || (ELIMINATE_COPY_RELOCS |
1265 | && !info->shared | |
0451c93c MS |
1266 | && (sec->flags & SEC_ALLOC) != 0 |
1267 | && h != NULL | |
1268 | && (h->root.type == bfd_link_hash_defweak | |
f5385ebf | 1269 | || !h->def_regular))) |
a85d7ed0 | 1270 | { |
ec338859 AM |
1271 | struct elf_s390_dyn_relocs *p; |
1272 | struct elf_s390_dyn_relocs **head; | |
1273 | ||
0451c93c MS |
1274 | /* We must copy these reloc types into the output file. |
1275 | Create a reloc section in dynobj and make room for | |
1276 | this reloc. */ | |
a85d7ed0 NC |
1277 | if (sreloc == NULL) |
1278 | { | |
1279 | const char *name; | |
0451c93c | 1280 | bfd *dynobj; |
ec338859 | 1281 | |
a85d7ed0 NC |
1282 | name = (bfd_elf_string_from_elf_section |
1283 | (abfd, | |
1284 | elf_elfheader (abfd)->e_shstrndx, | |
1285 | elf_section_data (sec)->rel_hdr.sh_name)); | |
1286 | if (name == NULL) | |
b34976b6 | 1287 | return FALSE; |
a85d7ed0 | 1288 | |
0112cd26 | 1289 | if (! CONST_STRNEQ (name, ".rela") |
0451c93c MS |
1290 | || strcmp (bfd_get_section_name (abfd, sec), |
1291 | name + 5) != 0) | |
1292 | { | |
1293 | (*_bfd_error_handler) | |
d003868e AM |
1294 | (_("%B: bad relocation section name `%s\'"), |
1295 | abfd, name); | |
0451c93c MS |
1296 | } |
1297 | ||
1298 | if (htab->elf.dynobj == NULL) | |
1299 | htab->elf.dynobj = abfd; | |
a85d7ed0 | 1300 | |
0451c93c | 1301 | dynobj = htab->elf.dynobj; |
a85d7ed0 NC |
1302 | sreloc = bfd_get_section_by_name (dynobj, name); |
1303 | if (sreloc == NULL) | |
1304 | { | |
1305 | flagword flags; | |
1306 | ||
a85d7ed0 NC |
1307 | flags = (SEC_HAS_CONTENTS | SEC_READONLY |
1308 | | SEC_IN_MEMORY | SEC_LINKER_CREATED); | |
1309 | if ((sec->flags & SEC_ALLOC) != 0) | |
1310 | flags |= SEC_ALLOC | SEC_LOAD; | |
3496cb2a L |
1311 | sreloc = bfd_make_section_with_flags (dynobj, |
1312 | name, | |
1313 | flags); | |
a85d7ed0 | 1314 | if (sreloc == NULL |
a85d7ed0 | 1315 | || ! bfd_set_section_alignment (dynobj, sreloc, 2)) |
b34976b6 | 1316 | return FALSE; |
a85d7ed0 | 1317 | } |
0451c93c | 1318 | elf_section_data (sec)->sreloc = sreloc; |
a85d7ed0 NC |
1319 | } |
1320 | ||
0451c93c MS |
1321 | /* If this is a global symbol, we count the number of |
1322 | relocations we need for this symbol. */ | |
1323 | if (h != NULL) | |
a85d7ed0 | 1324 | { |
ec338859 | 1325 | head = &((struct elf_s390_link_hash_entry *) h)->dyn_relocs; |
0451c93c MS |
1326 | } |
1327 | else | |
1328 | { | |
ec338859 AM |
1329 | /* Track dynamic relocs needed for local syms too. |
1330 | We really need local syms available to do this | |
1331 | easily. Oh well. */ | |
ec338859 | 1332 | asection *s; |
6edfbbad | 1333 | void *vpp; |
ae9a127f | 1334 | |
ec338859 AM |
1335 | s = bfd_section_from_r_symndx (abfd, &htab->sym_sec, |
1336 | sec, r_symndx); | |
1337 | if (s == NULL) | |
b34976b6 | 1338 | return FALSE; |
ec338859 | 1339 | |
6edfbbad DJ |
1340 | vpp = &elf_section_data (s)->local_dynrel; |
1341 | head = (struct elf_s390_dyn_relocs **) vpp; | |
ec338859 AM |
1342 | } |
1343 | ||
1344 | p = *head; | |
1345 | if (p == NULL || p->sec != sec) | |
1346 | { | |
1347 | bfd_size_type amt = sizeof *p; | |
ae9a127f | 1348 | |
ec338859 AM |
1349 | p = ((struct elf_s390_dyn_relocs *) |
1350 | bfd_alloc (htab->elf.dynobj, amt)); | |
1351 | if (p == NULL) | |
b34976b6 | 1352 | return FALSE; |
ec338859 AM |
1353 | p->next = *head; |
1354 | *head = p; | |
1355 | p->sec = sec; | |
1356 | p->count = 0; | |
1357 | p->pc_count = 0; | |
a85d7ed0 | 1358 | } |
ec338859 AM |
1359 | |
1360 | p->count += 1; | |
1361 | if (ELF32_R_TYPE (rel->r_info) == R_390_PC16 | |
1362 | || ELF32_R_TYPE (rel->r_info) == R_390_PC16DBL | |
befc3abb | 1363 | || ELF32_R_TYPE (rel->r_info) == R_390_PC32DBL |
ec338859 AM |
1364 | || ELF32_R_TYPE (rel->r_info) == R_390_PC32) |
1365 | p->pc_count += 1; | |
a85d7ed0 | 1366 | } |
a85d7ed0 | 1367 | break; |
ec338859 | 1368 | |
a85d7ed0 NC |
1369 | /* This relocation describes the C++ object vtable hierarchy. |
1370 | Reconstruct it for later use during GC. */ | |
26e41594 | 1371 | case R_390_GNU_VTINHERIT: |
c152c796 | 1372 | if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset)) |
26e41594 AM |
1373 | return FALSE; |
1374 | break; | |
ec338859 | 1375 | |
a85d7ed0 NC |
1376 | /* This relocation describes which C++ vtable entries are actually |
1377 | used. Record for later use during GC. */ | |
26e41594 | 1378 | case R_390_GNU_VTENTRY: |
c152c796 | 1379 | if (!bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend)) |
26e41594 AM |
1380 | return FALSE; |
1381 | break; | |
ec338859 | 1382 | |
a85d7ed0 NC |
1383 | default: |
1384 | break; | |
1385 | } | |
1386 | } | |
1387 | ||
b34976b6 | 1388 | return TRUE; |
a85d7ed0 NC |
1389 | } |
1390 | ||
1391 | /* Return the section that should be marked against GC for a given | |
1392 | relocation. */ | |
1393 | ||
1394 | static asection * | |
07adf181 AM |
1395 | elf_s390_gc_mark_hook (asection *sec, |
1396 | struct bfd_link_info *info, | |
1397 | Elf_Internal_Rela *rel, | |
1398 | struct elf_link_hash_entry *h, | |
1399 | Elf_Internal_Sym *sym) | |
a85d7ed0 NC |
1400 | { |
1401 | if (h != NULL) | |
07adf181 AM |
1402 | switch (ELF32_R_TYPE (rel->r_info)) |
1403 | { | |
1404 | case R_390_GNU_VTINHERIT: | |
1405 | case R_390_GNU_VTENTRY: | |
1406 | return NULL; | |
1407 | } | |
1408 | return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym); | |
a85d7ed0 | 1409 | |
a85d7ed0 NC |
1410 | } |
1411 | ||
1412 | /* Update the got entry reference counts for the section being removed. */ | |
1413 | ||
b34976b6 | 1414 | static bfd_boolean |
07adf181 AM |
1415 | elf_s390_gc_sweep_hook (bfd *abfd, |
1416 | struct bfd_link_info *info, | |
1417 | asection *sec, | |
1418 | const Elf_Internal_Rela *relocs) | |
a85d7ed0 NC |
1419 | { |
1420 | Elf_Internal_Shdr *symtab_hdr; | |
1421 | struct elf_link_hash_entry **sym_hashes; | |
1422 | bfd_signed_vma *local_got_refcounts; | |
1423 | const Elf_Internal_Rela *rel, *relend; | |
a85d7ed0 | 1424 | |
ec338859 | 1425 | elf_section_data (sec)->local_dynrel = NULL; |
a85d7ed0 | 1426 | |
0451c93c MS |
1427 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; |
1428 | sym_hashes = elf_sym_hashes (abfd); | |
1429 | local_got_refcounts = elf_local_got_refcounts (abfd); | |
a85d7ed0 NC |
1430 | |
1431 | relend = relocs + sec->reloc_count; | |
1432 | for (rel = relocs; rel < relend; rel++) | |
5236c819 | 1433 | { |
26e41594 AM |
1434 | unsigned long r_symndx; |
1435 | unsigned int r_type; | |
1436 | struct elf_link_hash_entry *h = NULL; | |
1437 | ||
5236c819 | 1438 | r_symndx = ELF32_R_SYM (rel->r_info); |
26e41594 AM |
1439 | if (r_symndx >= symtab_hdr->sh_info) |
1440 | { | |
1441 | struct elf_s390_link_hash_entry *eh; | |
1442 | struct elf_s390_dyn_relocs **pp; | |
1443 | struct elf_s390_dyn_relocs *p; | |
0451c93c | 1444 | |
26e41594 | 1445 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; |
3eb128b2 AM |
1446 | while (h->root.type == bfd_link_hash_indirect |
1447 | || h->root.type == bfd_link_hash_warning) | |
1448 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
26e41594 | 1449 | eh = (struct elf_s390_link_hash_entry *) h; |
5236c819 | 1450 | |
26e41594 AM |
1451 | for (pp = &eh->dyn_relocs; (p = *pp) != NULL; pp = &p->next) |
1452 | if (p->sec == sec) | |
1453 | { | |
1454 | /* Everything must go for SEC. */ | |
1455 | *pp = p->next; | |
1456 | break; | |
1457 | } | |
1458 | } | |
1459 | ||
1460 | r_type = ELF32_R_TYPE (rel->r_info); | |
1461 | r_type = elf_s390_tls_transition (info, r_type, h != NULL); | |
69fc87f1 | 1462 | switch (r_type) |
5236c819 | 1463 | { |
69fc87f1 MS |
1464 | case R_390_TLS_LDM32: |
1465 | if (elf_s390_hash_table (info)->tls_ldm_got.refcount > 0) | |
1466 | elf_s390_hash_table (info)->tls_ldm_got.refcount -= 1; | |
1467 | break; | |
1468 | ||
1469 | case R_390_TLS_GD32: | |
1470 | case R_390_TLS_IE32: | |
1471 | case R_390_TLS_GOTIE12: | |
bd1ea41b | 1472 | case R_390_TLS_GOTIE20: |
69fc87f1 MS |
1473 | case R_390_TLS_GOTIE32: |
1474 | case R_390_TLS_IEENT: | |
5236c819 MS |
1475 | case R_390_GOT12: |
1476 | case R_390_GOT16: | |
bd1ea41b | 1477 | case R_390_GOT20: |
5236c819 MS |
1478 | case R_390_GOT32: |
1479 | case R_390_GOTOFF16: | |
1480 | case R_390_GOTOFF32: | |
1481 | case R_390_GOTPC: | |
1482 | case R_390_GOTPCDBL: | |
1483 | case R_390_GOTENT: | |
1484 | if (h != NULL) | |
1485 | { | |
1486 | if (h->got.refcount > 0) | |
1487 | h->got.refcount -= 1; | |
1488 | } | |
1489 | else if (local_got_refcounts != NULL) | |
1490 | { | |
1491 | if (local_got_refcounts[r_symndx] > 0) | |
1492 | local_got_refcounts[r_symndx] -= 1; | |
1493 | } | |
26e41594 | 1494 | break; |
a85d7ed0 | 1495 | |
5236c819 MS |
1496 | case R_390_8: |
1497 | case R_390_12: | |
1498 | case R_390_16: | |
bd1ea41b | 1499 | case R_390_20: |
5236c819 MS |
1500 | case R_390_32: |
1501 | case R_390_PC16: | |
1502 | case R_390_PC16DBL: | |
1503 | case R_390_PC32DBL: | |
1504 | case R_390_PC32: | |
26e41594 AM |
1505 | if (info->shared) |
1506 | break; | |
1507 | /* Fall through. */ | |
1508 | ||
69fc87f1 MS |
1509 | case R_390_PLT16DBL: |
1510 | case R_390_PLT32DBL: | |
1511 | case R_390_PLT32: | |
1512 | case R_390_PLTOFF16: | |
1513 | case R_390_PLTOFF32: | |
1514 | if (h != NULL) | |
1515 | { | |
1516 | if (h->plt.refcount > 0) | |
1517 | h->plt.refcount -= 1; | |
1518 | } | |
1519 | break; | |
1520 | ||
1521 | case R_390_GOTPLT12: | |
1522 | case R_390_GOTPLT16: | |
bd1ea41b | 1523 | case R_390_GOTPLT20: |
69fc87f1 MS |
1524 | case R_390_GOTPLT32: |
1525 | case R_390_GOTPLTENT: | |
1526 | if (h != NULL) | |
1527 | { | |
1528 | if (h->plt.refcount > 0) | |
1529 | { | |
1530 | ((struct elf_s390_link_hash_entry *) h)->gotplt_refcount--; | |
1531 | h->plt.refcount -= 1; | |
1532 | } | |
1533 | } | |
1534 | else if (local_got_refcounts != NULL) | |
1535 | { | |
1536 | if (local_got_refcounts[r_symndx] > 0) | |
1537 | local_got_refcounts[r_symndx] -= 1; | |
1538 | } | |
1539 | break; | |
1540 | ||
5236c819 MS |
1541 | default: |
1542 | break; | |
1543 | } | |
1544 | } | |
a85d7ed0 | 1545 | |
b34976b6 | 1546 | return TRUE; |
a85d7ed0 NC |
1547 | } |
1548 | ||
5236c819 MS |
1549 | /* Make sure we emit a GOT entry if the symbol was supposed to have a PLT |
1550 | entry but we found we will not create any. Called when we find we will | |
1551 | not have any PLT for this symbol, by for example | |
1552 | elf_s390_adjust_dynamic_symbol when we're doing a proper dynamic link, | |
1553 | or elf_s390_size_dynamic_sections if no dynamic sections will be | |
1554 | created (we're only linking static objects). */ | |
1555 | ||
1556 | static void | |
1557 | elf_s390_adjust_gotplt (h) | |
1558 | struct elf_s390_link_hash_entry *h; | |
1559 | { | |
1560 | if (h->elf.root.type == bfd_link_hash_warning) | |
1561 | h = (struct elf_s390_link_hash_entry *) h->elf.root.u.i.link; | |
1562 | ||
1563 | if (h->gotplt_refcount <= 0) | |
1564 | return; | |
1565 | ||
1566 | /* We simply add the number of gotplt references to the number | |
1567 | * of got references for this symbol. */ | |
1568 | h->elf.got.refcount += h->gotplt_refcount; | |
1569 | h->gotplt_refcount = -1; | |
1570 | } | |
1571 | ||
a85d7ed0 NC |
1572 | /* Adjust a symbol defined by a dynamic object and referenced by a |
1573 | regular object. The current definition is in some section of the | |
1574 | dynamic object, but we're not including those sections. We have to | |
1575 | change the definition to something the rest of the link can | |
1576 | understand. */ | |
1577 | ||
b34976b6 | 1578 | static bfd_boolean |
a85d7ed0 NC |
1579 | elf_s390_adjust_dynamic_symbol (info, h) |
1580 | struct bfd_link_info *info; | |
1581 | struct elf_link_hash_entry *h; | |
1582 | { | |
0451c93c | 1583 | struct elf_s390_link_hash_table *htab; |
a85d7ed0 NC |
1584 | asection *s; |
1585 | unsigned int power_of_two; | |
1586 | ||
a85d7ed0 NC |
1587 | /* If this is a function, put it in the procedure linkage table. We |
1588 | will fill in the contents of the procedure linkage table later | |
cedb70c5 | 1589 | (although we could actually do it here). */ |
a85d7ed0 | 1590 | if (h->type == STT_FUNC |
f5385ebf | 1591 | || h->needs_plt) |
a85d7ed0 | 1592 | { |
0451c93c MS |
1593 | if (h->plt.refcount <= 0 |
1594 | || (! info->shared | |
f5385ebf AM |
1595 | && !h->def_dynamic |
1596 | && !h->ref_dynamic | |
f9cd9119 MS |
1597 | && h->root.type != bfd_link_hash_undefweak |
1598 | && h->root.type != bfd_link_hash_undefined)) | |
a85d7ed0 NC |
1599 | { |
1600 | /* This case can occur if we saw a PLT32 reloc in an input | |
26e41594 AM |
1601 | file, but the symbol was never referred to by a dynamic |
1602 | object, or if all references were garbage collected. In | |
a85d7ed0 NC |
1603 | such a case, we don't actually need to build a procedure |
1604 | linkage table, and we can just do a PC32 reloc instead. */ | |
1605 | h->plt.offset = (bfd_vma) -1; | |
f5385ebf | 1606 | h->needs_plt = 0; |
5236c819 | 1607 | elf_s390_adjust_gotplt((struct elf_s390_link_hash_entry *) h); |
a85d7ed0 NC |
1608 | } |
1609 | ||
b34976b6 | 1610 | return TRUE; |
a85d7ed0 | 1611 | } |
bbd7ec4a | 1612 | else |
0451c93c MS |
1613 | /* It's possible that we incorrectly decided a .plt reloc was |
1614 | needed for an R_390_PC32 reloc to a non-function sym in | |
1615 | check_relocs. We can't decide accurately between function and | |
1616 | non-function syms in check-relocs; Objects loaded later in | |
1617 | the link may change h->type. So fix it now. */ | |
bbd7ec4a | 1618 | h->plt.offset = (bfd_vma) -1; |
a85d7ed0 NC |
1619 | |
1620 | /* If this is a weak symbol, and there is a real definition, the | |
1621 | processor independent code will have arranged for us to see the | |
1622 | real definition first, and we can just use the same value. */ | |
f6e332e6 | 1623 | if (h->u.weakdef != NULL) |
a85d7ed0 | 1624 | { |
f6e332e6 AM |
1625 | BFD_ASSERT (h->u.weakdef->root.type == bfd_link_hash_defined |
1626 | || h->u.weakdef->root.type == bfd_link_hash_defweak); | |
1627 | h->root.u.def.section = h->u.weakdef->root.u.def.section; | |
1628 | h->root.u.def.value = h->u.weakdef->root.u.def.value; | |
64285810 | 1629 | if (ELIMINATE_COPY_RELOCS || info->nocopyreloc) |
f6e332e6 | 1630 | h->non_got_ref = h->u.weakdef->non_got_ref; |
b34976b6 | 1631 | return TRUE; |
a85d7ed0 NC |
1632 | } |
1633 | ||
1634 | /* This is a reference to a symbol defined by a dynamic object which | |
1635 | is not a function. */ | |
1636 | ||
1637 | /* If we are creating a shared library, we must presume that the | |
1638 | only references to the symbol are via the global offset table. | |
1639 | For such cases we need not do anything here; the relocations will | |
1640 | be handled correctly by relocate_section. */ | |
1641 | if (info->shared) | |
b34976b6 | 1642 | return TRUE; |
a85d7ed0 NC |
1643 | |
1644 | /* If there are no references to this symbol that do not use the | |
1645 | GOT, we don't need to generate a copy reloc. */ | |
f5385ebf | 1646 | if (!h->non_got_ref) |
b34976b6 | 1647 | return TRUE; |
a85d7ed0 | 1648 | |
0451c93c MS |
1649 | /* If -z nocopyreloc was given, we won't generate them either. */ |
1650 | if (info->nocopyreloc) | |
1651 | { | |
f5385ebf | 1652 | h->non_got_ref = 0; |
b34976b6 | 1653 | return TRUE; |
0451c93c MS |
1654 | } |
1655 | ||
64285810 | 1656 | if (ELIMINATE_COPY_RELOCS) |
0451c93c | 1657 | { |
64285810 MS |
1658 | struct elf_s390_link_hash_entry * eh; |
1659 | struct elf_s390_dyn_relocs *p; | |
0451c93c | 1660 | |
64285810 MS |
1661 | eh = (struct elf_s390_link_hash_entry *) h; |
1662 | for (p = eh->dyn_relocs; p != NULL; p = p->next) | |
1663 | { | |
1664 | s = p->sec->output_section; | |
1665 | if (s != NULL && (s->flags & SEC_READONLY) != 0) | |
1666 | break; | |
1667 | } | |
1668 | ||
1669 | /* If we didn't find any dynamic relocs in read-only sections, then | |
1670 | we'll be keeping the dynamic relocs and avoiding the copy reloc. */ | |
1671 | if (p == NULL) | |
1672 | { | |
f5385ebf | 1673 | h->non_got_ref = 0; |
64285810 MS |
1674 | return TRUE; |
1675 | } | |
0451c93c MS |
1676 | } |
1677 | ||
909272ee AM |
1678 | if (h->size == 0) |
1679 | { | |
1680 | (*_bfd_error_handler) (_("dynamic variable `%s' is zero size"), | |
1681 | h->root.root.string); | |
1682 | return TRUE; | |
1683 | } | |
1684 | ||
a85d7ed0 NC |
1685 | /* We must allocate the symbol in our .dynbss section, which will |
1686 | become part of the .bss section of the executable. There will be | |
1687 | an entry for this symbol in the .dynsym section. The dynamic | |
1688 | object will contain position independent code, so all references | |
1689 | from the dynamic object to this symbol will go through the global | |
1690 | offset table. The dynamic linker will use the .dynsym entry to | |
1691 | determine the address it must put in the global offset table, so | |
1692 | both the dynamic object and the regular object will refer to the | |
1693 | same memory location for the variable. */ | |
1694 | ||
0451c93c | 1695 | htab = elf_s390_hash_table (info); |
a85d7ed0 | 1696 | |
0451c93c MS |
1697 | /* We must generate a R_390_COPY reloc to tell the dynamic linker to |
1698 | copy the initial value out of the dynamic object and into the | |
1699 | runtime process image. */ | |
a85d7ed0 NC |
1700 | if ((h->root.u.def.section->flags & SEC_ALLOC) != 0) |
1701 | { | |
eea6121a | 1702 | htab->srelbss->size += sizeof (Elf32_External_Rela); |
f5385ebf | 1703 | h->needs_copy = 1; |
a85d7ed0 NC |
1704 | } |
1705 | ||
1706 | /* We need to figure out the alignment required for this symbol. I | |
1707 | have no idea how ELF linkers handle this. */ | |
1708 | power_of_two = bfd_log2 (h->size); | |
1709 | if (power_of_two > 3) | |
1710 | power_of_two = 3; | |
1711 | ||
1712 | /* Apply the required alignment. */ | |
0451c93c | 1713 | s = htab->sdynbss; |
eea6121a | 1714 | s->size = BFD_ALIGN (s->size, (bfd_size_type) (1 << power_of_two)); |
0451c93c | 1715 | if (power_of_two > bfd_get_section_alignment (htab->elf.dynobj, s)) |
a85d7ed0 | 1716 | { |
0451c93c | 1717 | if (! bfd_set_section_alignment (htab->elf.dynobj, s, power_of_two)) |
b34976b6 | 1718 | return FALSE; |
a85d7ed0 NC |
1719 | } |
1720 | ||
1721 | /* Define the symbol as being at this point in the section. */ | |
1722 | h->root.u.def.section = s; | |
eea6121a | 1723 | h->root.u.def.value = s->size; |
a85d7ed0 NC |
1724 | |
1725 | /* Increment the section size to make room for the symbol. */ | |
eea6121a | 1726 | s->size += h->size; |
a85d7ed0 | 1727 | |
b34976b6 | 1728 | return TRUE; |
a85d7ed0 NC |
1729 | } |
1730 | ||
0451c93c MS |
1731 | /* Allocate space in .plt, .got and associated reloc sections for |
1732 | dynamic relocs. */ | |
1733 | ||
b34976b6 | 1734 | static bfd_boolean |
0451c93c MS |
1735 | allocate_dynrelocs (h, inf) |
1736 | struct elf_link_hash_entry *h; | |
1737 | PTR inf; | |
1738 | { | |
1739 | struct bfd_link_info *info; | |
1740 | struct elf_s390_link_hash_table *htab; | |
1741 | struct elf_s390_link_hash_entry *eh; | |
1742 | struct elf_s390_dyn_relocs *p; | |
1743 | ||
e92d460e | 1744 | if (h->root.type == bfd_link_hash_indirect) |
b34976b6 | 1745 | return TRUE; |
0451c93c | 1746 | |
e92d460e | 1747 | if (h->root.type == bfd_link_hash_warning) |
5236c819 MS |
1748 | /* When warning symbols are created, they **replace** the "real" |
1749 | entry in the hash table, thus we never get to see the real | |
1750 | symbol in a hash traversal. So look at it now. */ | |
e92d460e AM |
1751 | h = (struct elf_link_hash_entry *) h->root.u.i.link; |
1752 | ||
0451c93c MS |
1753 | info = (struct bfd_link_info *) inf; |
1754 | htab = elf_s390_hash_table (info); | |
1755 | ||
1756 | if (htab->elf.dynamic_sections_created | |
82058a73 MS |
1757 | && h->plt.refcount > 0 |
1758 | && (ELF_ST_VISIBILITY (h->other) == STV_DEFAULT | |
1759 | || h->root.type != bfd_link_hash_undefweak)) | |
0451c93c MS |
1760 | { |
1761 | /* Make sure this symbol is output as a dynamic symbol. | |
1762 | Undefined weak syms won't yet be marked as dynamic. */ | |
1763 | if (h->dynindx == -1 | |
f5385ebf | 1764 | && !h->forced_local) |
0451c93c | 1765 | { |
c152c796 | 1766 | if (! bfd_elf_link_record_dynamic_symbol (info, h)) |
b34976b6 | 1767 | return FALSE; |
0451c93c MS |
1768 | } |
1769 | ||
82058a73 | 1770 | if (info->shared |
4ec72bde | 1771 | || WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, 0, h)) |
0451c93c MS |
1772 | { |
1773 | asection *s = htab->splt; | |
1774 | ||
1775 | /* If this is the first .plt entry, make room for the special | |
1776 | first entry. */ | |
eea6121a AM |
1777 | if (s->size == 0) |
1778 | s->size += PLT_FIRST_ENTRY_SIZE; | |
0451c93c | 1779 | |
eea6121a | 1780 | h->plt.offset = s->size; |
0451c93c MS |
1781 | |
1782 | /* If this symbol is not defined in a regular file, and we are | |
1783 | not generating a shared library, then set the symbol to this | |
1784 | location in the .plt. This is required to make function | |
1785 | pointers compare as equal between the normal executable and | |
1786 | the shared library. */ | |
1787 | if (! info->shared | |
f5385ebf | 1788 | && !h->def_regular) |
0451c93c MS |
1789 | { |
1790 | h->root.u.def.section = s; | |
1791 | h->root.u.def.value = h->plt.offset; | |
1792 | } | |
ec338859 | 1793 | |
0451c93c | 1794 | /* Make room for this entry. */ |
eea6121a | 1795 | s->size += PLT_ENTRY_SIZE; |
ec338859 | 1796 | |
0451c93c MS |
1797 | /* We also need to make an entry in the .got.plt section, which |
1798 | will be placed in the .got section by the linker script. */ | |
eea6121a | 1799 | htab->sgotplt->size += GOT_ENTRY_SIZE; |
0451c93c MS |
1800 | |
1801 | /* We also need to make an entry in the .rela.plt section. */ | |
eea6121a | 1802 | htab->srelplt->size += sizeof (Elf32_External_Rela); |
0451c93c MS |
1803 | } |
1804 | else | |
1805 | { | |
1806 | h->plt.offset = (bfd_vma) -1; | |
f5385ebf | 1807 | h->needs_plt = 0; |
5236c819 | 1808 | elf_s390_adjust_gotplt((struct elf_s390_link_hash_entry *) h); |
0451c93c | 1809 | } |
ec338859 | 1810 | } |
0451c93c MS |
1811 | else |
1812 | { | |
1813 | h->plt.offset = (bfd_vma) -1; | |
f5385ebf | 1814 | h->needs_plt = 0; |
5236c819 | 1815 | elf_s390_adjust_gotplt((struct elf_s390_link_hash_entry *) h); |
ec338859 AM |
1816 | } |
1817 | ||
69fc87f1 MS |
1818 | /* If R_390_TLS_{IE32,GOTIE32,GOTIE12,IEENT} symbol is now local to |
1819 | the binary, we can optimize a bit. IE32 and GOTIE32 get converted | |
1820 | to R_390_TLS_LE32 requiring no TLS entry. For GOTIE12 and IEENT | |
1821 | we can save the dynamic TLS relocation. */ | |
1822 | if (h->got.refcount > 0 | |
1823 | && !info->shared | |
1824 | && h->dynindx == -1 | |
1825 | && elf_s390_hash_entry(h)->tls_type >= GOT_TLS_IE) | |
0451c93c | 1826 | { |
69fc87f1 MS |
1827 | if (elf_s390_hash_entry(h)->tls_type == GOT_TLS_IE_NLT) |
1828 | /* For the GOTIE access without a literal pool entry the offset has | |
1829 | to be stored somewhere. The immediate value in the instruction | |
1830 | is not bit enough so the value is stored in the got. */ | |
1831 | { | |
eea6121a AM |
1832 | h->got.offset = htab->sgot->size; |
1833 | htab->sgot->size += GOT_ENTRY_SIZE; | |
69fc87f1 MS |
1834 | } |
1835 | else | |
1836 | h->got.offset = (bfd_vma) -1; | |
1837 | } | |
1838 | else if (h->got.refcount > 0) | |
1839 | { | |
0451c93c | 1840 | asection *s; |
b34976b6 | 1841 | bfd_boolean dyn; |
69fc87f1 | 1842 | int tls_type = elf_s390_hash_entry(h)->tls_type; |
0451c93c MS |
1843 | |
1844 | /* Make sure this symbol is output as a dynamic symbol. | |
1845 | Undefined weak syms won't yet be marked as dynamic. */ | |
1846 | if (h->dynindx == -1 | |
f5385ebf | 1847 | && !h->forced_local) |
0451c93c | 1848 | { |
c152c796 | 1849 | if (! bfd_elf_link_record_dynamic_symbol (info, h)) |
b34976b6 | 1850 | return FALSE; |
0451c93c MS |
1851 | } |
1852 | ||
1853 | s = htab->sgot; | |
eea6121a AM |
1854 | h->got.offset = s->size; |
1855 | s->size += GOT_ENTRY_SIZE; | |
69fc87f1 MS |
1856 | /* R_390_TLS_GD32 needs 2 consecutive GOT slots. */ |
1857 | if (tls_type == GOT_TLS_GD) | |
eea6121a | 1858 | s->size += GOT_ENTRY_SIZE; |
0451c93c | 1859 | dyn = htab->elf.dynamic_sections_created; |
69fc87f1 MS |
1860 | /* R_390_TLS_IE32 needs one dynamic relocation, |
1861 | R_390_TLS_GD32 needs one if local symbol and two if global. */ | |
1862 | if ((tls_type == GOT_TLS_GD && h->dynindx == -1) | |
1863 | || tls_type >= GOT_TLS_IE) | |
eea6121a | 1864 | htab->srelgot->size += sizeof (Elf32_External_Rela); |
69fc87f1 | 1865 | else if (tls_type == GOT_TLS_GD) |
eea6121a | 1866 | htab->srelgot->size += 2 * sizeof (Elf32_External_Rela); |
82058a73 MS |
1867 | else if ((ELF_ST_VISIBILITY (h->other) == STV_DEFAULT |
1868 | || h->root.type != bfd_link_hash_undefweak) | |
1869 | && (info->shared | |
1870 | || WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, 0, h))) | |
eea6121a | 1871 | htab->srelgot->size += sizeof (Elf32_External_Rela); |
0451c93c MS |
1872 | } |
1873 | else | |
1874 | h->got.offset = (bfd_vma) -1; | |
1875 | ||
1876 | eh = (struct elf_s390_link_hash_entry *) h; | |
1877 | if (eh->dyn_relocs == NULL) | |
b34976b6 | 1878 | return TRUE; |
0451c93c MS |
1879 | |
1880 | /* In the shared -Bsymbolic case, discard space allocated for | |
1881 | dynamic pc-relative relocs against symbols which turn out to be | |
1882 | defined in regular objects. For the normal shared case, discard | |
1883 | space for pc-relative relocs that have become local due to symbol | |
1884 | visibility changes. */ | |
1885 | ||
1886 | if (info->shared) | |
1887 | { | |
1c3ff0f2 | 1888 | if (SYMBOL_REFERENCES_LOCAL (info, h)) |
0451c93c MS |
1889 | { |
1890 | struct elf_s390_dyn_relocs **pp; | |
1891 | ||
1892 | for (pp = &eh->dyn_relocs; (p = *pp) != NULL; ) | |
1893 | { | |
1894 | p->count -= p->pc_count; | |
1895 | p->pc_count = 0; | |
1896 | if (p->count == 0) | |
1897 | *pp = p->next; | |
1898 | else | |
1899 | pp = &p->next; | |
1900 | } | |
1901 | } | |
82058a73 MS |
1902 | |
1903 | /* Also discard relocs on undefined weak syms with non-default | |
1904 | visibility. */ | |
22d606e9 | 1905 | if (eh->dyn_relocs != NULL |
82058a73 | 1906 | && h->root.type == bfd_link_hash_undefweak) |
22d606e9 AM |
1907 | { |
1908 | if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT) | |
1909 | eh->dyn_relocs = NULL; | |
1910 | ||
1911 | /* Make sure undefined weak symbols are output as a dynamic | |
1912 | symbol in PIEs. */ | |
1913 | else if (h->dynindx == -1 | |
1914 | && !h->forced_local) | |
1915 | { | |
1916 | if (! bfd_elf_link_record_dynamic_symbol (info, h)) | |
1917 | return FALSE; | |
1918 | } | |
1919 | } | |
0451c93c | 1920 | } |
64285810 | 1921 | else if (ELIMINATE_COPY_RELOCS) |
0451c93c MS |
1922 | { |
1923 | /* For the non-shared case, discard space for relocs against | |
1924 | symbols which turn out to need copy relocs or are not | |
1925 | dynamic. */ | |
1926 | ||
f5385ebf AM |
1927 | if (!h->non_got_ref |
1928 | && ((h->def_dynamic | |
1929 | && !h->def_regular) | |
0451c93c MS |
1930 | || (htab->elf.dynamic_sections_created |
1931 | && (h->root.type == bfd_link_hash_undefweak | |
1932 | || h->root.type == bfd_link_hash_undefined)))) | |
1933 | { | |
1934 | /* Make sure this symbol is output as a dynamic symbol. | |
1935 | Undefined weak syms won't yet be marked as dynamic. */ | |
1936 | if (h->dynindx == -1 | |
f5385ebf | 1937 | && !h->forced_local) |
0451c93c | 1938 | { |
c152c796 | 1939 | if (! bfd_elf_link_record_dynamic_symbol (info, h)) |
b34976b6 | 1940 | return FALSE; |
0451c93c MS |
1941 | } |
1942 | ||
1943 | /* If that succeeded, we know we'll be keeping all the | |
1944 | relocs. */ | |
1945 | if (h->dynindx != -1) | |
1946 | goto keep; | |
1947 | } | |
1948 | ||
1949 | eh->dyn_relocs = NULL; | |
1950 | ||
ec338859 | 1951 | keep: ; |
0451c93c MS |
1952 | } |
1953 | ||
1954 | /* Finally, allocate space. */ | |
1955 | for (p = eh->dyn_relocs; p != NULL; p = p->next) | |
1956 | { | |
1957 | asection *sreloc = elf_section_data (p->sec)->sreloc; | |
ae9a127f | 1958 | |
eea6121a | 1959 | sreloc->size += p->count * sizeof (Elf32_External_Rela); |
0451c93c MS |
1960 | } |
1961 | ||
b34976b6 | 1962 | return TRUE; |
0451c93c MS |
1963 | } |
1964 | ||
1965 | /* Find any dynamic relocs that apply to read-only sections. */ | |
1966 | ||
b34976b6 | 1967 | static bfd_boolean |
0451c93c MS |
1968 | readonly_dynrelocs (h, inf) |
1969 | struct elf_link_hash_entry *h; | |
1970 | PTR inf; | |
1971 | { | |
1972 | struct elf_s390_link_hash_entry *eh; | |
1973 | struct elf_s390_dyn_relocs *p; | |
1974 | ||
e92d460e AM |
1975 | if (h->root.type == bfd_link_hash_warning) |
1976 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
1977 | ||
0451c93c MS |
1978 | eh = (struct elf_s390_link_hash_entry *) h; |
1979 | for (p = eh->dyn_relocs; p != NULL; p = p->next) | |
1980 | { | |
1981 | asection *s = p->sec->output_section; | |
1982 | ||
1983 | if (s != NULL && (s->flags & SEC_READONLY) != 0) | |
1984 | { | |
1985 | struct bfd_link_info *info = (struct bfd_link_info *) inf; | |
1986 | ||
1987 | info->flags |= DF_TEXTREL; | |
1988 | ||
1989 | /* Not an error, just cut short the traversal. */ | |
b34976b6 | 1990 | return FALSE; |
0451c93c MS |
1991 | } |
1992 | } | |
b34976b6 | 1993 | return TRUE; |
0451c93c MS |
1994 | } |
1995 | ||
a85d7ed0 NC |
1996 | /* Set the sizes of the dynamic sections. */ |
1997 | ||
b34976b6 | 1998 | static bfd_boolean |
a85d7ed0 | 1999 | elf_s390_size_dynamic_sections (output_bfd, info) |
29c2fb7c | 2000 | bfd *output_bfd ATTRIBUTE_UNUSED; |
a85d7ed0 NC |
2001 | struct bfd_link_info *info; |
2002 | { | |
0451c93c | 2003 | struct elf_s390_link_hash_table *htab; |
a85d7ed0 NC |
2004 | bfd *dynobj; |
2005 | asection *s; | |
b34976b6 | 2006 | bfd_boolean relocs; |
0451c93c | 2007 | bfd *ibfd; |
a85d7ed0 | 2008 | |
0451c93c MS |
2009 | htab = elf_s390_hash_table (info); |
2010 | dynobj = htab->elf.dynobj; | |
2011 | if (dynobj == NULL) | |
2012 | abort (); | |
a85d7ed0 | 2013 | |
0451c93c | 2014 | if (htab->elf.dynamic_sections_created) |
a85d7ed0 NC |
2015 | { |
2016 | /* Set the contents of the .interp section to the interpreter. */ | |
36af4a4e | 2017 | if (info->executable) |
a85d7ed0 NC |
2018 | { |
2019 | s = bfd_get_section_by_name (dynobj, ".interp"); | |
0451c93c MS |
2020 | if (s == NULL) |
2021 | abort (); | |
eea6121a | 2022 | s->size = sizeof ELF_DYNAMIC_INTERPRETER; |
a85d7ed0 NC |
2023 | s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER; |
2024 | } | |
2025 | } | |
a85d7ed0 | 2026 | |
0451c93c MS |
2027 | /* Set up .got offsets for local syms, and space for local dynamic |
2028 | relocs. */ | |
2029 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next) | |
a85d7ed0 | 2030 | { |
0451c93c MS |
2031 | bfd_signed_vma *local_got; |
2032 | bfd_signed_vma *end_local_got; | |
69fc87f1 | 2033 | char *local_tls_type; |
0451c93c MS |
2034 | bfd_size_type locsymcount; |
2035 | Elf_Internal_Shdr *symtab_hdr; | |
2036 | asection *srela; | |
a85d7ed0 | 2037 | |
0451c93c | 2038 | if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour) |
a85d7ed0 NC |
2039 | continue; |
2040 | ||
0451c93c | 2041 | for (s = ibfd->sections; s != NULL; s = s->next) |
a85d7ed0 | 2042 | { |
ec338859 | 2043 | struct elf_s390_dyn_relocs *p; |
0451c93c | 2044 | |
6edfbbad | 2045 | for (p = elf_section_data (s)->local_dynrel; p != NULL; p = p->next) |
a85d7ed0 | 2046 | { |
ec338859 AM |
2047 | if (!bfd_is_abs_section (p->sec) |
2048 | && bfd_is_abs_section (p->sec->output_section)) | |
2049 | { | |
2050 | /* Input section has been discarded, either because | |
2051 | it is a copy of a linkonce section or due to | |
2052 | linker script /DISCARD/, so we'll be discarding | |
2053 | the relocs too. */ | |
2054 | } | |
248866a8 | 2055 | else if (p->count != 0) |
ec338859 AM |
2056 | { |
2057 | srela = elf_section_data (p->sec)->sreloc; | |
eea6121a | 2058 | srela->size += p->count * sizeof (Elf32_External_Rela); |
248866a8 AM |
2059 | if ((p->sec->output_section->flags & SEC_READONLY) != 0) |
2060 | info->flags |= DF_TEXTREL; | |
ec338859 | 2061 | } |
a85d7ed0 NC |
2062 | } |
2063 | } | |
0451c93c MS |
2064 | |
2065 | local_got = elf_local_got_refcounts (ibfd); | |
2066 | if (!local_got) | |
2067 | continue; | |
2068 | ||
2069 | symtab_hdr = &elf_tdata (ibfd)->symtab_hdr; | |
2070 | locsymcount = symtab_hdr->sh_info; | |
2071 | end_local_got = local_got + locsymcount; | |
69fc87f1 | 2072 | local_tls_type = elf_s390_local_got_tls_type (ibfd); |
0451c93c MS |
2073 | s = htab->sgot; |
2074 | srela = htab->srelgot; | |
69fc87f1 | 2075 | for (; local_got < end_local_got; ++local_got, ++local_tls_type) |
a85d7ed0 | 2076 | { |
0451c93c | 2077 | if (*local_got > 0) |
a85d7ed0 | 2078 | { |
eea6121a AM |
2079 | *local_got = s->size; |
2080 | s->size += GOT_ENTRY_SIZE; | |
69fc87f1 | 2081 | if (*local_tls_type == GOT_TLS_GD) |
eea6121a | 2082 | s->size += GOT_ENTRY_SIZE; |
0451c93c | 2083 | if (info->shared) |
eea6121a | 2084 | srela->size += sizeof (Elf32_External_Rela); |
a85d7ed0 NC |
2085 | } |
2086 | else | |
0451c93c MS |
2087 | *local_got = (bfd_vma) -1; |
2088 | } | |
2089 | } | |
2090 | ||
69fc87f1 MS |
2091 | if (htab->tls_ldm_got.refcount > 0) |
2092 | { | |
2093 | /* Allocate 2 got entries and 1 dynamic reloc for R_390_TLS_LDM32 | |
2094 | relocs. */ | |
eea6121a AM |
2095 | htab->tls_ldm_got.offset = htab->sgot->size; |
2096 | htab->sgot->size += 2 * GOT_ENTRY_SIZE; | |
2097 | htab->srelgot->size += sizeof (Elf32_External_Rela); | |
69fc87f1 MS |
2098 | } |
2099 | else | |
2100 | htab->tls_ldm_got.offset = -1; | |
2101 | ||
0451c93c MS |
2102 | /* Allocate global sym .plt and .got entries, and space for global |
2103 | sym dynamic relocs. */ | |
2104 | elf_link_hash_traverse (&htab->elf, allocate_dynrelocs, (PTR) info); | |
2105 | ||
2106 | /* We now have determined the sizes of the various dynamic sections. | |
2107 | Allocate memory for them. */ | |
b34976b6 | 2108 | relocs = FALSE; |
0451c93c MS |
2109 | for (s = dynobj->sections; s != NULL; s = s->next) |
2110 | { | |
2111 | if ((s->flags & SEC_LINKER_CREATED) == 0) | |
2112 | continue; | |
2113 | ||
2114 | if (s == htab->splt | |
2115 | || s == htab->sgot | |
c456f082 AM |
2116 | || s == htab->sgotplt |
2117 | || s == htab->sdynbss) | |
0451c93c MS |
2118 | { |
2119 | /* Strip this section if we don't need it; see the | |
2120 | comment below. */ | |
a85d7ed0 | 2121 | } |
0112cd26 | 2122 | else if (CONST_STRNEQ (bfd_get_section_name (dynobj, s), ".rela")) |
0451c93c | 2123 | { |
eea6121a | 2124 | if (s->size != 0) |
b34976b6 | 2125 | relocs = TRUE; |
ec338859 | 2126 | |
0451c93c MS |
2127 | /* We use the reloc_count field as a counter if we need |
2128 | to copy relocs into the output file. */ | |
2129 | s->reloc_count = 0; | |
2130 | } | |
2131 | else | |
a85d7ed0 NC |
2132 | { |
2133 | /* It's not one of our sections, so don't allocate space. */ | |
2134 | continue; | |
2135 | } | |
2136 | ||
eea6121a | 2137 | if (s->size == 0) |
a85d7ed0 | 2138 | { |
0451c93c MS |
2139 | /* If we don't need this section, strip it from the |
2140 | output file. This is to handle .rela.bss and | |
2141 | .rela.plt. We must create it in | |
2142 | create_dynamic_sections, because it must be created | |
2143 | before the linker maps input sections to output | |
2144 | sections. The linker does that before | |
2145 | adjust_dynamic_symbol is called, and it is that | |
2146 | function which decides whether anything needs to go | |
2147 | into these sections. */ | |
2148 | ||
8423293d | 2149 | s->flags |= SEC_EXCLUDE; |
a85d7ed0 NC |
2150 | continue; |
2151 | } | |
2152 | ||
c456f082 AM |
2153 | if ((s->flags & SEC_HAS_CONTENTS) == 0) |
2154 | continue; | |
2155 | ||
0451c93c MS |
2156 | /* Allocate memory for the section contents. We use bfd_zalloc |
2157 | here in case unused entries are not reclaimed before the | |
2158 | section's contents are written out. This should not happen, | |
2159 | but this way if it does, we get a R_390_NONE reloc instead | |
2160 | of garbage. */ | |
eea6121a | 2161 | s->contents = (bfd_byte *) bfd_zalloc (dynobj, s->size); |
0451c93c | 2162 | if (s->contents == NULL) |
b34976b6 | 2163 | return FALSE; |
a85d7ed0 | 2164 | } |
ec338859 | 2165 | |
0451c93c | 2166 | if (htab->elf.dynamic_sections_created) |
a85d7ed0 NC |
2167 | { |
2168 | /* Add some entries to the .dynamic section. We fill in the | |
2169 | values later, in elf_s390_finish_dynamic_sections, but we | |
2170 | must add the entries now so that we get the correct size for | |
2171 | the .dynamic section. The DT_DEBUG entry is filled in by the | |
2172 | dynamic linker and used by the debugger. */ | |
dc810e39 | 2173 | #define add_dynamic_entry(TAG, VAL) \ |
5a580b3a | 2174 | _bfd_elf_add_dynamic_entry (info, TAG, VAL) |
ec338859 | 2175 | |
36af4a4e | 2176 | if (info->executable) |
a85d7ed0 | 2177 | { |
dc810e39 | 2178 | if (!add_dynamic_entry (DT_DEBUG, 0)) |
b34976b6 | 2179 | return FALSE; |
a85d7ed0 | 2180 | } |
ec338859 | 2181 | |
eea6121a | 2182 | if (htab->splt->size != 0) |
a85d7ed0 | 2183 | { |
dc810e39 AM |
2184 | if (!add_dynamic_entry (DT_PLTGOT, 0) |
2185 | || !add_dynamic_entry (DT_PLTRELSZ, 0) | |
2186 | || !add_dynamic_entry (DT_PLTREL, DT_RELA) | |
2187 | || !add_dynamic_entry (DT_JMPREL, 0)) | |
b34976b6 | 2188 | return FALSE; |
a85d7ed0 | 2189 | } |
ec338859 | 2190 | |
a85d7ed0 | 2191 | if (relocs) |
26e41594 AM |
2192 | { |
2193 | if (!add_dynamic_entry (DT_RELA, 0) | |
2194 | || !add_dynamic_entry (DT_RELASZ, 0) | |
2195 | || !add_dynamic_entry (DT_RELAENT, sizeof (Elf32_External_Rela))) | |
b34976b6 | 2196 | return FALSE; |
a85d7ed0 | 2197 | |
0451c93c MS |
2198 | /* If any dynamic relocs apply to a read-only section, |
2199 | then we need a DT_TEXTREL entry. */ | |
248866a8 AM |
2200 | if ((info->flags & DF_TEXTREL) == 0) |
2201 | elf_link_hash_traverse (&htab->elf, readonly_dynrelocs, | |
2202 | (PTR) info); | |
ec338859 | 2203 | |
0451c93c MS |
2204 | if ((info->flags & DF_TEXTREL) != 0) |
2205 | { | |
2206 | if (!add_dynamic_entry (DT_TEXTREL, 0)) | |
b34976b6 | 2207 | return FALSE; |
0451c93c | 2208 | } |
a85d7ed0 NC |
2209 | } |
2210 | } | |
dc810e39 | 2211 | #undef add_dynamic_entry |
ec338859 | 2212 | |
b34976b6 | 2213 | return TRUE; |
a85d7ed0 NC |
2214 | } |
2215 | ||
69fc87f1 MS |
2216 | /* Return the base VMA address which should be subtracted from real addresses |
2217 | when resolving @dtpoff relocation. | |
2218 | This is PT_TLS segment p_vaddr. */ | |
2219 | ||
2220 | static bfd_vma | |
2221 | dtpoff_base (info) | |
2222 | struct bfd_link_info *info; | |
2223 | { | |
e1918d23 AM |
2224 | /* If tls_sec is NULL, we should have signalled an error already. */ |
2225 | if (elf_hash_table (info)->tls_sec == NULL) | |
69fc87f1 | 2226 | return 0; |
e1918d23 | 2227 | return elf_hash_table (info)->tls_sec->vma; |
69fc87f1 MS |
2228 | } |
2229 | ||
2230 | /* Return the relocation value for @tpoff relocation | |
2231 | if STT_TLS virtual address is ADDRESS. */ | |
2232 | ||
2233 | static bfd_vma | |
2234 | tpoff (info, address) | |
2235 | struct bfd_link_info *info; | |
2236 | bfd_vma address; | |
2237 | { | |
e1918d23 | 2238 | struct elf_link_hash_table *htab = elf_hash_table (info); |
69fc87f1 | 2239 | |
e1918d23 AM |
2240 | /* If tls_sec is NULL, we should have signalled an error already. */ |
2241 | if (htab->tls_sec == NULL) | |
69fc87f1 | 2242 | return 0; |
e1918d23 | 2243 | return htab->tls_size + htab->tls_sec->vma - address; |
69fc87f1 MS |
2244 | } |
2245 | ||
2246 | /* Complain if TLS instruction relocation is against an invalid | |
2247 | instruction. */ | |
2248 | ||
2249 | static void | |
2250 | invalid_tls_insn (input_bfd, input_section, rel) | |
2251 | bfd *input_bfd; | |
2252 | asection *input_section; | |
2253 | Elf_Internal_Rela *rel; | |
2254 | { | |
2255 | reloc_howto_type *howto; | |
2256 | ||
2257 | howto = elf_howto_table + ELF32_R_TYPE (rel->r_info); | |
2258 | (*_bfd_error_handler) | |
d003868e AM |
2259 | (_("%B(%A+0x%lx): invalid instruction for TLS relocation %s"), |
2260 | input_bfd, | |
2261 | input_section, | |
69fc87f1 MS |
2262 | (long) rel->r_offset, |
2263 | howto->name); | |
77df2968 | 2264 | bfd_set_error (bfd_error_bad_value); |
69fc87f1 MS |
2265 | } |
2266 | ||
a85d7ed0 NC |
2267 | /* Relocate a 390 ELF section. */ |
2268 | ||
b34976b6 | 2269 | static bfd_boolean |
a85d7ed0 NC |
2270 | elf_s390_relocate_section (output_bfd, info, input_bfd, input_section, |
2271 | contents, relocs, local_syms, local_sections) | |
2272 | bfd *output_bfd; | |
2273 | struct bfd_link_info *info; | |
2274 | bfd *input_bfd; | |
2275 | asection *input_section; | |
2276 | bfd_byte *contents; | |
2277 | Elf_Internal_Rela *relocs; | |
2278 | Elf_Internal_Sym *local_syms; | |
2279 | asection **local_sections; | |
2280 | { | |
0451c93c | 2281 | struct elf_s390_link_hash_table *htab; |
a85d7ed0 NC |
2282 | Elf_Internal_Shdr *symtab_hdr; |
2283 | struct elf_link_hash_entry **sym_hashes; | |
2284 | bfd_vma *local_got_offsets; | |
a85d7ed0 NC |
2285 | Elf_Internal_Rela *rel; |
2286 | Elf_Internal_Rela *relend; | |
2287 | ||
0451c93c | 2288 | htab = elf_s390_hash_table (info); |
a85d7ed0 NC |
2289 | symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr; |
2290 | sym_hashes = elf_sym_hashes (input_bfd); | |
2291 | local_got_offsets = elf_local_got_offsets (input_bfd); | |
2292 | ||
a85d7ed0 NC |
2293 | rel = relocs; |
2294 | relend = relocs + input_section->reloc_count; | |
2295 | for (; rel < relend; rel++) | |
2296 | { | |
5236c819 | 2297 | unsigned int r_type; |
a85d7ed0 NC |
2298 | reloc_howto_type *howto; |
2299 | unsigned long r_symndx; | |
2300 | struct elf_link_hash_entry *h; | |
2301 | Elf_Internal_Sym *sym; | |
2302 | asection *sec; | |
0451c93c | 2303 | bfd_vma off; |
a85d7ed0 | 2304 | bfd_vma relocation; |
b34976b6 | 2305 | bfd_boolean unresolved_reloc; |
a85d7ed0 | 2306 | bfd_reloc_status_type r; |
69fc87f1 | 2307 | int tls_type; |
ec338859 | 2308 | |
a85d7ed0 NC |
2309 | r_type = ELF32_R_TYPE (rel->r_info); |
2310 | if (r_type == (int) R_390_GNU_VTINHERIT | |
26e41594 AM |
2311 | || r_type == (int) R_390_GNU_VTENTRY) |
2312 | continue; | |
5236c819 | 2313 | if (r_type >= (int) R_390_max) |
a85d7ed0 NC |
2314 | { |
2315 | bfd_set_error (bfd_error_bad_value); | |
b34976b6 | 2316 | return FALSE; |
a85d7ed0 | 2317 | } |
ec338859 | 2318 | |
b491616a | 2319 | howto = elf_howto_table + r_type; |
a85d7ed0 | 2320 | r_symndx = ELF32_R_SYM (rel->r_info); |
5236c819 | 2321 | |
a85d7ed0 NC |
2322 | h = NULL; |
2323 | sym = NULL; | |
2324 | sec = NULL; | |
b34976b6 | 2325 | unresolved_reloc = FALSE; |
a85d7ed0 NC |
2326 | if (r_symndx < symtab_hdr->sh_info) |
2327 | { | |
2328 | sym = local_syms + r_symndx; | |
2329 | sec = local_sections[r_symndx]; | |
8517fae7 | 2330 | relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel); |
a85d7ed0 NC |
2331 | } |
2332 | else | |
2333 | { | |
560e09e9 | 2334 | bfd_boolean warned ATTRIBUTE_UNUSED; |
ec338859 | 2335 | |
b2a8e766 AM |
2336 | RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel, |
2337 | r_symndx, symtab_hdr, sym_hashes, | |
2338 | h, sec, relocation, | |
2339 | unresolved_reloc, warned); | |
a85d7ed0 | 2340 | } |
ec338859 | 2341 | |
ab96bf03 AM |
2342 | if (sec != NULL && elf_discarded_section (sec)) |
2343 | { | |
2344 | /* For relocs against symbols from removed linkonce sections, | |
2345 | or sections discarded by a linker script, we just want the | |
2346 | section contents zeroed. Avoid any special processing. */ | |
2347 | _bfd_clear_contents (howto, input_bfd, contents + rel->r_offset); | |
2348 | rel->r_info = 0; | |
2349 | rel->r_addend = 0; | |
2350 | continue; | |
2351 | } | |
2352 | ||
2353 | if (info->relocatable) | |
2354 | continue; | |
2355 | ||
a85d7ed0 NC |
2356 | switch (r_type) |
2357 | { | |
5236c819 MS |
2358 | case R_390_GOTPLT12: |
2359 | case R_390_GOTPLT16: | |
bd1ea41b | 2360 | case R_390_GOTPLT20: |
5236c819 MS |
2361 | case R_390_GOTPLT32: |
2362 | case R_390_GOTPLTENT: | |
2363 | /* There are three cases for a GOTPLT relocation. 1) The | |
2364 | relocation is against the jump slot entry of a plt that | |
2365 | will get emitted to the output file. 2) The relocation | |
2366 | is against the jump slot of a plt entry that has been | |
2367 | removed. elf_s390_adjust_gotplt has created a GOT entry | |
2368 | as replacement. 3) The relocation is against a local symbol. | |
2369 | Cases 2) and 3) are the same as the GOT relocation code | |
2370 | so we just have to test for case 1 and fall through for | |
2371 | the other two. */ | |
2372 | if (h != NULL && h->plt.offset != (bfd_vma) -1) | |
2373 | { | |
2374 | bfd_vma plt_index; | |
2375 | ||
2376 | /* Calc. index no. | |
2377 | Current offset - size first entry / entry size. */ | |
2378 | plt_index = (h->plt.offset - PLT_FIRST_ENTRY_SIZE) / | |
2379 | PLT_ENTRY_SIZE; | |
26e41594 | 2380 | |
5236c819 MS |
2381 | /* Offset in GOT is PLT index plus GOT headers(3) times 4, |
2382 | addr & GOT addr. */ | |
2383 | relocation = (plt_index + 3) * GOT_ENTRY_SIZE; | |
2384 | unresolved_reloc = FALSE; | |
2385 | ||
2386 | if (r_type == R_390_GOTPLTENT) | |
2387 | relocation += htab->sgot->output_section->vma; | |
2388 | break; | |
2389 | } | |
2390 | /* Fall through. */ | |
2391 | ||
26e41594 AM |
2392 | case R_390_GOT12: |
2393 | case R_390_GOT16: | |
bd1ea41b | 2394 | case R_390_GOT20: |
26e41594 | 2395 | case R_390_GOT32: |
befc3abb | 2396 | case R_390_GOTENT: |
26e41594 AM |
2397 | /* Relocation is to the entry for this symbol in the global |
2398 | offset table. */ | |
0451c93c MS |
2399 | if (htab->sgot == NULL) |
2400 | abort (); | |
ec338859 | 2401 | |
26e41594 AM |
2402 | if (h != NULL) |
2403 | { | |
b34976b6 | 2404 | bfd_boolean dyn; |
ec338859 | 2405 | |
26e41594 | 2406 | off = h->got.offset; |
0451c93c | 2407 | dyn = htab->elf.dynamic_sections_created; |
4ec72bde | 2408 | if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared, h) |
26e41594 AM |
2409 | || (info->shared |
2410 | && (info->symbolic | |
0451c93c | 2411 | || h->dynindx == -1 |
f5385ebf AM |
2412 | || h->forced_local) |
2413 | && h->def_regular) | |
82058a73 MS |
2414 | || (ELF_ST_VISIBILITY (h->other) |
2415 | && h->root.type == bfd_link_hash_undefweak)) | |
26e41594 AM |
2416 | { |
2417 | /* This is actually a static link, or it is a | |
2418 | -Bsymbolic link and the symbol is defined | |
2419 | locally, or the symbol was forced to be local | |
2420 | because of a version file. We must initialize | |
2421 | this entry in the global offset table. Since the | |
2422 | offset must always be a multiple of 2, we use the | |
2423 | least significant bit to record whether we have | |
2424 | initialized it already. | |
2425 | ||
2426 | When doing a dynamic link, we create a .rel.got | |
2427 | relocation entry to initialize the value. This | |
2428 | is done in the finish_dynamic_symbol routine. */ | |
2429 | if ((off & 1) != 0) | |
2430 | off &= ~1; | |
2431 | else | |
2432 | { | |
a85d7ed0 | 2433 | bfd_put_32 (output_bfd, relocation, |
0451c93c | 2434 | htab->sgot->contents + off); |
26e41594 AM |
2435 | h->got.offset |= 1; |
2436 | } | |
2437 | } | |
0451c93c | 2438 | else |
b34976b6 | 2439 | unresolved_reloc = FALSE; |
26e41594 AM |
2440 | } |
2441 | else | |
2442 | { | |
0451c93c MS |
2443 | if (local_got_offsets == NULL) |
2444 | abort (); | |
a85d7ed0 | 2445 | |
26e41594 | 2446 | off = local_got_offsets[r_symndx]; |
a85d7ed0 | 2447 | |
26e41594 AM |
2448 | /* The offset must always be a multiple of 4. We use |
2449 | the least significant bit to record whether we have | |
2450 | already generated the necessary reloc. */ | |
2451 | if ((off & 1) != 0) | |
2452 | off &= ~1; | |
2453 | else | |
2454 | { | |
2455 | bfd_put_32 (output_bfd, relocation, | |
0451c93c | 2456 | htab->sgot->contents + off); |
a85d7ed0 | 2457 | |
26e41594 AM |
2458 | if (info->shared) |
2459 | { | |
2460 | asection *srelgot; | |
2461 | Elf_Internal_Rela outrel; | |
947216bf | 2462 | bfd_byte *loc; |
a85d7ed0 | 2463 | |
26e41594 | 2464 | srelgot = htab->srelgot; |
0451c93c MS |
2465 | if (srelgot == NULL) |
2466 | abort (); | |
a85d7ed0 | 2467 | |
26e41594 AM |
2468 | outrel.r_offset = (htab->sgot->output_section->vma |
2469 | + htab->sgot->output_offset | |
2470 | + off); | |
2471 | outrel.r_info = ELF32_R_INFO (0, R_390_RELATIVE); | |
a85d7ed0 | 2472 | outrel.r_addend = relocation; |
947216bf AM |
2473 | loc = srelgot->contents; |
2474 | loc += srelgot->reloc_count++ * sizeof (Elf32_External_Rela); | |
26e41594 AM |
2475 | bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc); |
2476 | } | |
a85d7ed0 | 2477 | |
26e41594 AM |
2478 | local_got_offsets[r_symndx] |= 1; |
2479 | } | |
2480 | } | |
a85d7ed0 | 2481 | |
0451c93c MS |
2482 | if (off >= (bfd_vma) -2) |
2483 | abort (); | |
a85d7ed0 | 2484 | |
0451c93c | 2485 | relocation = htab->sgot->output_offset + off; |
befc3abb | 2486 | |
ae9a127f NC |
2487 | /* For @GOTENT the relocation is against the offset between |
2488 | the instruction and the symbols entry in the GOT and not | |
2489 | between the start of the GOT and the symbols entry. We | |
2490 | add the vma of the GOT to get the correct value. */ | |
5236c819 MS |
2491 | if ( r_type == R_390_GOTENT |
2492 | || r_type == R_390_GOTPLTENT) | |
befc3abb MS |
2493 | relocation += htab->sgot->output_section->vma; |
2494 | ||
26e41594 | 2495 | break; |
dc810e39 | 2496 | |
5236c819 | 2497 | case R_390_GOTOFF16: |
26e41594 AM |
2498 | case R_390_GOTOFF32: |
2499 | /* Relocation is relative to the start of the global offset | |
2500 | table. */ | |
2501 | ||
2502 | /* Note that sgot->output_offset is not involved in this | |
2503 | calculation. We always want the start of .got. If we | |
2504 | defined _GLOBAL_OFFSET_TABLE in a different way, as is | |
2505 | permitted by the ABI, we might have to change this | |
2506 | calculation. */ | |
2507 | relocation -= htab->sgot->output_section->vma; | |
2508 | break; | |
2509 | ||
2510 | case R_390_GOTPC: | |
befc3abb | 2511 | case R_390_GOTPCDBL: |
26e41594 AM |
2512 | /* Use global offset table as symbol value. */ |
2513 | relocation = htab->sgot->output_section->vma; | |
b34976b6 | 2514 | unresolved_reloc = FALSE; |
26e41594 | 2515 | break; |
a85d7ed0 | 2516 | |
26e41594 AM |
2517 | case R_390_PLT16DBL: |
2518 | case R_390_PLT32DBL: | |
2519 | case R_390_PLT32: | |
2520 | /* Relocation is to the entry for this symbol in the | |
2521 | procedure linkage table. */ | |
a85d7ed0 | 2522 | |
26e41594 AM |
2523 | /* Resolve a PLT32 reloc against a local symbol directly, |
2524 | without using the procedure linkage table. */ | |
2525 | if (h == NULL) | |
2526 | break; | |
a85d7ed0 | 2527 | |
26e41594 | 2528 | if (h->plt.offset == (bfd_vma) -1 |
0451c93c | 2529 | || htab->splt == NULL) |
26e41594 AM |
2530 | { |
2531 | /* We didn't make a PLT entry for this symbol. This | |
2532 | happens when statically linking PIC code, or when | |
2533 | using -Bsymbolic. */ | |
2534 | break; | |
2535 | } | |
2536 | ||
2537 | relocation = (htab->splt->output_section->vma | |
2538 | + htab->splt->output_offset | |
2539 | + h->plt.offset); | |
b34976b6 | 2540 | unresolved_reloc = FALSE; |
26e41594 | 2541 | break; |
a85d7ed0 | 2542 | |
5236c819 MS |
2543 | case R_390_PLTOFF16: |
2544 | case R_390_PLTOFF32: | |
26e41594 AM |
2545 | /* Relocation is to the entry for this symbol in the |
2546 | procedure linkage table relative to the start of the GOT. */ | |
5236c819 MS |
2547 | |
2548 | /* For local symbols or if we didn't make a PLT entry for | |
2549 | this symbol resolve the symbol directly. */ | |
26e41594 | 2550 | if ( h == NULL |
5236c819 MS |
2551 | || h->plt.offset == (bfd_vma) -1 |
2552 | || htab->splt == NULL) | |
2553 | { | |
2554 | relocation -= htab->sgot->output_section->vma; | |
2555 | break; | |
2556 | } | |
2557 | ||
26e41594 AM |
2558 | relocation = (htab->splt->output_section->vma |
2559 | + htab->splt->output_offset | |
2560 | + h->plt.offset | |
5236c819 MS |
2561 | - htab->sgot->output_section->vma); |
2562 | unresolved_reloc = FALSE; | |
26e41594 AM |
2563 | break; |
2564 | ||
2565 | case R_390_8: | |
2566 | case R_390_16: | |
2567 | case R_390_32: | |
2568 | case R_390_PC16: | |
2569 | case R_390_PC16DBL: | |
2570 | case R_390_PC32DBL: | |
2571 | case R_390_PC32: | |
b1e24c02 | 2572 | if ((input_section->flags & SEC_ALLOC) == 0) |
ec338859 AM |
2573 | break; |
2574 | ||
26e41594 | 2575 | if ((info->shared |
82058a73 MS |
2576 | && (h == NULL |
2577 | || ELF_ST_VISIBILITY (h->other) == STV_DEFAULT | |
2578 | || h->root.type != bfd_link_hash_undefweak) | |
0451c93c MS |
2579 | && ((r_type != R_390_PC16 |
2580 | && r_type != R_390_PC16DBL | |
befc3abb | 2581 | && r_type != R_390_PC32DBL |
0451c93c MS |
2582 | && r_type != R_390_PC32) |
2583 | || (h != NULL | |
1c3ff0f2 | 2584 | && !SYMBOL_REFERENCES_LOCAL (info, h)))) |
64285810 MS |
2585 | || (ELIMINATE_COPY_RELOCS |
2586 | && !info->shared | |
0451c93c MS |
2587 | && h != NULL |
2588 | && h->dynindx != -1 | |
f5385ebf AM |
2589 | && !h->non_got_ref |
2590 | && ((h->def_dynamic | |
2591 | && !h->def_regular) | |
0451c93c MS |
2592 | || h->root.type == bfd_link_hash_undefweak |
2593 | || h->root.type == bfd_link_hash_undefined))) | |
26e41594 AM |
2594 | { |
2595 | Elf_Internal_Rela outrel; | |
2596 | bfd_boolean skip, relocate; | |
0451c93c | 2597 | asection *sreloc; |
947216bf | 2598 | bfd_byte *loc; |
ec338859 | 2599 | |
0451c93c MS |
2600 | /* When generating a shared object, these relocations |
2601 | are copied into the output file to be resolved at run | |
2602 | time. */ | |
ec338859 | 2603 | |
26e41594 AM |
2604 | skip = FALSE; |
2605 | relocate = FALSE; | |
ec338859 | 2606 | |
c629eae0 JJ |
2607 | outrel.r_offset = |
2608 | _bfd_elf_section_offset (output_bfd, info, input_section, | |
2609 | rel->r_offset); | |
2610 | if (outrel.r_offset == (bfd_vma) -1) | |
b34976b6 | 2611 | skip = TRUE; |
0bb2d96a | 2612 | else if (outrel.r_offset == (bfd_vma) -2) |
b34976b6 | 2613 | skip = TRUE, relocate = TRUE; |
26e41594 AM |
2614 | outrel.r_offset += (input_section->output_section->vma |
2615 | + input_section->output_offset); | |
ec338859 | 2616 | |
26e41594 | 2617 | if (skip) |
0bb2d96a | 2618 | memset (&outrel, 0, sizeof outrel); |
26e41594 | 2619 | else if (h != NULL |
0451c93c MS |
2620 | && h->dynindx != -1 |
2621 | && (r_type == R_390_PC16 | |
2622 | || r_type == R_390_PC16DBL | |
befc3abb | 2623 | || r_type == R_390_PC32DBL |
0451c93c MS |
2624 | || r_type == R_390_PC32 |
2625 | || !info->shared | |
2626 | || !info->symbolic | |
f5385ebf | 2627 | || !h->def_regular)) |
26e41594 AM |
2628 | { |
2629 | outrel.r_info = ELF32_R_INFO (h->dynindx, r_type); | |
27018c3f | 2630 | outrel.r_addend = rel->r_addend; |
26e41594 AM |
2631 | } |
2632 | else | |
2633 | { | |
0451c93c | 2634 | /* This symbol is local, or marked to become local. */ |
90ced0dd | 2635 | outrel.r_addend = relocation + rel->r_addend; |
b5727d75 MS |
2636 | if (r_type == R_390_32) |
2637 | { | |
2638 | relocate = TRUE; | |
2639 | outrel.r_info = ELF32_R_INFO (0, R_390_RELATIVE); | |
b5727d75 MS |
2640 | } |
2641 | else | |
2642 | { | |
2643 | long sindx; | |
2644 | ||
90ced0dd | 2645 | if (bfd_is_abs_section (sec)) |
b5727d75 MS |
2646 | sindx = 0; |
2647 | else if (sec == NULL || sec->owner == NULL) | |
2648 | { | |
2649 | bfd_set_error(bfd_error_bad_value); | |
2650 | return FALSE; | |
2651 | } | |
2652 | else | |
2653 | { | |
2654 | asection *osec; | |
2655 | ||
2656 | osec = sec->output_section; | |
2657 | sindx = elf_section_data (osec)->dynindx; | |
74541ad4 AM |
2658 | if (sindx == 0) |
2659 | { | |
2660 | osec = htab->elf.text_index_section; | |
2661 | sindx = elf_section_data (osec)->dynindx; | |
2662 | } | |
2663 | BFD_ASSERT (sindx != 0); | |
90ced0dd MS |
2664 | |
2665 | /* We are turning this relocation into one | |
2666 | against a section symbol, so subtract out | |
2667 | the output section's address but not the | |
2668 | offset of the input section in the output | |
2669 | section. */ | |
90ced0dd | 2670 | outrel.r_addend -= osec->vma; |
b5727d75 MS |
2671 | } |
2672 | outrel.r_info = ELF32_R_INFO (sindx, r_type); | |
b5727d75 | 2673 | } |
26e41594 | 2674 | } |
ec338859 | 2675 | |
0451c93c MS |
2676 | sreloc = elf_section_data (input_section)->sreloc; |
2677 | if (sreloc == NULL) | |
2678 | abort (); | |
ec338859 | 2679 | |
947216bf AM |
2680 | loc = sreloc->contents; |
2681 | loc += sreloc->reloc_count++ * sizeof (Elf32_External_Rela); | |
0451c93c | 2682 | bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc); |
ec338859 | 2683 | |
26e41594 AM |
2684 | /* If this reloc is against an external symbol, we do |
2685 | not want to fiddle with the addend. Otherwise, we | |
2686 | need to include the symbol value so that it becomes | |
2687 | an addend for the dynamic reloc. */ | |
2688 | if (! relocate) | |
2689 | continue; | |
2690 | } | |
0451c93c | 2691 | break; |
ec338859 | 2692 | |
69fc87f1 MS |
2693 | /* Relocations for tls literal pool entries. */ |
2694 | case R_390_TLS_IE32: | |
2695 | if (info->shared) | |
2696 | { | |
2697 | Elf_Internal_Rela outrel; | |
2698 | asection *sreloc; | |
2699 | bfd_byte *loc; | |
2700 | ||
2701 | outrel.r_offset = rel->r_offset | |
2702 | + input_section->output_section->vma | |
2703 | + input_section->output_offset; | |
2704 | outrel.r_info = ELF32_R_INFO (0, R_390_RELATIVE); | |
2705 | sreloc = elf_section_data (input_section)->sreloc; | |
2706 | if (sreloc == NULL) | |
2707 | abort (); | |
2708 | loc = sreloc->contents; | |
2709 | loc += sreloc->reloc_count++ * sizeof (Elf32_External_Rela); | |
2710 | bfd_elf32_swap_reloc_out (output_bfd, &outrel, loc); | |
2711 | } | |
ae9a127f | 2712 | /* Fall through. */ |
69fc87f1 MS |
2713 | |
2714 | case R_390_TLS_GD32: | |
2715 | case R_390_TLS_GOTIE32: | |
2716 | r_type = elf_s390_tls_transition (info, r_type, h == NULL); | |
2717 | tls_type = GOT_UNKNOWN; | |
2718 | if (h == NULL && local_got_offsets) | |
2719 | tls_type = elf_s390_local_got_tls_type (input_bfd) [r_symndx]; | |
2720 | else if (h != NULL) | |
2721 | { | |
2722 | tls_type = elf_s390_hash_entry(h)->tls_type; | |
2723 | if (!info->shared && h->dynindx == -1 && tls_type >= GOT_TLS_IE) | |
2724 | r_type = R_390_TLS_LE32; | |
2725 | } | |
2726 | if (r_type == R_390_TLS_GD32 && tls_type >= GOT_TLS_IE) | |
2727 | r_type = R_390_TLS_IE32; | |
2728 | ||
2729 | if (r_type == R_390_TLS_LE32) | |
2730 | { | |
2731 | /* This relocation gets optimized away by the local exec | |
2732 | access optimization. */ | |
2733 | BFD_ASSERT (! unresolved_reloc); | |
2734 | bfd_put_32 (output_bfd, -tpoff (info, relocation), | |
2735 | contents + rel->r_offset); | |
2736 | continue; | |
2737 | } | |
2738 | ||
2739 | if (htab->sgot == NULL) | |
2740 | abort (); | |
2741 | ||
2742 | if (h != NULL) | |
2743 | off = h->got.offset; | |
2744 | else | |
2745 | { | |
2746 | if (local_got_offsets == NULL) | |
2747 | abort (); | |
2748 | ||
2749 | off = local_got_offsets[r_symndx]; | |
2750 | } | |
2751 | ||
2752 | emit_tls_relocs: | |
2753 | ||
2754 | if ((off & 1) != 0) | |
2755 | off &= ~1; | |
26e41594 | 2756 | else |
69fc87f1 MS |
2757 | { |
2758 | Elf_Internal_Rela outrel; | |
2759 | bfd_byte *loc; | |
2760 | int dr_type, indx; | |
2761 | ||
2762 | if (htab->srelgot == NULL) | |
2763 | abort (); | |
2764 | ||
2765 | outrel.r_offset = (htab->sgot->output_section->vma | |
2766 | + htab->sgot->output_offset + off); | |
2767 | ||
2768 | indx = h && h->dynindx != -1 ? h->dynindx : 0; | |
2769 | if (r_type == R_390_TLS_GD32) | |
2770 | dr_type = R_390_TLS_DTPMOD; | |
2771 | else | |
2772 | dr_type = R_390_TLS_TPOFF; | |
2773 | if (dr_type == R_390_TLS_TPOFF && indx == 0) | |
2774 | outrel.r_addend = relocation - dtpoff_base (info); | |
2775 | else | |
2776 | outrel.r_addend = 0; | |
2777 | outrel.r_info = ELF32_R_INFO (indx, dr_type); | |
2778 | loc = htab->srelgot->contents; | |
2779 | loc += htab->srelgot->reloc_count++ | |
2780 | * sizeof (Elf32_External_Rela); | |
2781 | bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc); | |
2782 | ||
2783 | if (r_type == R_390_TLS_GD32) | |
2784 | { | |
2785 | if (indx == 0) | |
2786 | { | |
26e41594 | 2787 | BFD_ASSERT (! unresolved_reloc); |
69fc87f1 MS |
2788 | bfd_put_32 (output_bfd, |
2789 | relocation - dtpoff_base (info), | |
2790 | htab->sgot->contents + off + GOT_ENTRY_SIZE); | |
2791 | } | |
2792 | else | |
2793 | { | |
2794 | outrel.r_info = ELF32_R_INFO (indx, R_390_TLS_DTPOFF); | |
2795 | outrel.r_offset += GOT_ENTRY_SIZE; | |
2796 | outrel.r_addend = 0; | |
2797 | htab->srelgot->reloc_count++; | |
2798 | loc += sizeof (Elf32_External_Rela); | |
2799 | bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc); | |
2800 | } | |
2801 | } | |
2802 | ||
2803 | if (h != NULL) | |
2804 | h->got.offset |= 1; | |
2805 | else | |
2806 | local_got_offsets[r_symndx] |= 1; | |
2807 | } | |
2808 | ||
2809 | if (off >= (bfd_vma) -2) | |
2810 | abort (); | |
2811 | if (r_type == ELF32_R_TYPE (rel->r_info)) | |
2812 | { | |
2813 | relocation = htab->sgot->output_offset + off; | |
2814 | if (r_type == R_390_TLS_IE32 || r_type == R_390_TLS_IEENT) | |
2815 | relocation += htab->sgot->output_section->vma; | |
2816 | unresolved_reloc = FALSE; | |
2817 | } | |
2818 | else | |
2819 | { | |
2820 | bfd_put_32 (output_bfd, htab->sgot->output_offset + off, | |
2821 | contents + rel->r_offset); | |
2822 | continue; | |
2823 | } | |
2824 | break; | |
2825 | ||
2826 | case R_390_TLS_GOTIE12: | |
bd1ea41b | 2827 | case R_390_TLS_GOTIE20: |
69fc87f1 MS |
2828 | case R_390_TLS_IEENT: |
2829 | if (h == NULL) | |
2830 | { | |
2831 | if (local_got_offsets == NULL) | |
2832 | abort(); | |
2833 | off = local_got_offsets[r_symndx]; | |
2834 | if (info->shared) | |
2835 | goto emit_tls_relocs; | |
2836 | } | |
2837 | else | |
2838 | { | |
2839 | off = h->got.offset; | |
2840 | tls_type = elf_s390_hash_entry(h)->tls_type; | |
2841 | if (info->shared || h->dynindx != -1 || tls_type < GOT_TLS_IE) | |
2842 | goto emit_tls_relocs; | |
2843 | } | |
2844 | ||
2845 | if (htab->sgot == NULL) | |
2846 | abort (); | |
2847 | ||
2848 | BFD_ASSERT (! unresolved_reloc); | |
2849 | bfd_put_32 (output_bfd, -tpoff (info, relocation), | |
2850 | htab->sgot->contents + off); | |
2851 | relocation = htab->sgot->output_offset + off; | |
2852 | if (r_type == R_390_TLS_IEENT) | |
2853 | relocation += htab->sgot->output_section->vma; | |
2854 | unresolved_reloc = FALSE; | |
2855 | break; | |
2856 | ||
2857 | case R_390_TLS_LDM32: | |
2858 | if (! info->shared) | |
2859 | /* The literal pool entry this relocation refers to gets ignored | |
2860 | by the optimized code of the local exec model. Do nothing | |
2861 | and the value will turn out zero. */ | |
2862 | continue; | |
2863 | ||
2864 | if (htab->sgot == NULL) | |
2865 | abort (); | |
2866 | ||
2867 | off = htab->tls_ldm_got.offset; | |
2868 | if (off & 1) | |
2869 | off &= ~1; | |
2870 | else | |
2871 | { | |
2872 | Elf_Internal_Rela outrel; | |
2873 | bfd_byte *loc; | |
2874 | ||
2875 | if (htab->srelgot == NULL) | |
2876 | abort (); | |
2877 | ||
2878 | outrel.r_offset = (htab->sgot->output_section->vma | |
2879 | + htab->sgot->output_offset + off); | |
2880 | ||
2881 | bfd_put_32 (output_bfd, 0, | |
2882 | htab->sgot->contents + off + GOT_ENTRY_SIZE); | |
2883 | outrel.r_info = ELF32_R_INFO (0, R_390_TLS_DTPMOD); | |
2884 | outrel.r_addend = 0; | |
2885 | loc = htab->srelgot->contents; | |
2886 | loc += htab->srelgot->reloc_count++ | |
2887 | * sizeof (Elf32_External_Rela); | |
2888 | bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc); | |
2889 | htab->tls_ldm_got.offset |= 1; | |
2890 | } | |
2891 | relocation = htab->sgot->output_offset + off; | |
26e41594 | 2892 | unresolved_reloc = FALSE; |
69fc87f1 MS |
2893 | break; |
2894 | ||
2895 | case R_390_TLS_LE32: | |
2896 | if (info->shared) | |
2897 | { | |
2898 | /* Linking a shared library with non-fpic code requires | |
2899 | a R_390_TLS_TPOFF relocation. */ | |
2900 | Elf_Internal_Rela outrel; | |
2901 | asection *sreloc; | |
2902 | bfd_byte *loc; | |
2903 | int indx; | |
2904 | ||
2905 | outrel.r_offset = rel->r_offset | |
2906 | + input_section->output_section->vma | |
2907 | + input_section->output_offset; | |
2908 | if (h != NULL && h->dynindx != -1) | |
2909 | indx = h->dynindx; | |
2910 | else | |
2911 | indx = 0; | |
2912 | outrel.r_info = ELF32_R_INFO (indx, R_390_TLS_TPOFF); | |
2913 | if (indx == 0) | |
2914 | outrel.r_addend = relocation - dtpoff_base (info); | |
2915 | else | |
2916 | outrel.r_addend = 0; | |
2917 | sreloc = elf_section_data (input_section)->sreloc; | |
2918 | if (sreloc == NULL) | |
2919 | abort (); | |
2920 | loc = sreloc->contents; | |
2921 | loc += sreloc->reloc_count++ * sizeof (Elf32_External_Rela); | |
2922 | bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc); | |
2923 | } | |
2924 | else | |
2925 | { | |
2926 | BFD_ASSERT (! unresolved_reloc); | |
2927 | bfd_put_32 (output_bfd, -tpoff (info, relocation), | |
2928 | contents + rel->r_offset); | |
2929 | } | |
2930 | continue; | |
2931 | ||
2932 | case R_390_TLS_LDO32: | |
36c10a8f | 2933 | if (info->shared) |
69fc87f1 MS |
2934 | relocation -= dtpoff_base (info); |
2935 | else | |
2936 | /* When converting LDO to LE, we must negate. */ | |
2937 | relocation = -tpoff (info, relocation); | |
2938 | break; | |
2939 | ||
2940 | /* Relocations for tls instructions. */ | |
2941 | case R_390_TLS_LOAD: | |
2942 | case R_390_TLS_GDCALL: | |
2943 | case R_390_TLS_LDCALL: | |
2944 | tls_type = GOT_UNKNOWN; | |
2945 | if (h == NULL && local_got_offsets) | |
2946 | tls_type = elf_s390_local_got_tls_type (input_bfd) [r_symndx]; | |
2947 | else if (h != NULL) | |
2948 | tls_type = elf_s390_hash_entry(h)->tls_type; | |
2949 | ||
2950 | if (tls_type == GOT_TLS_GD) | |
2951 | continue; | |
2952 | ||
2953 | if (r_type == R_390_TLS_LOAD) | |
2954 | { | |
2955 | if (!info->shared && (h == NULL || h->dynindx == -1)) | |
2956 | { | |
2957 | /* IE->LE transition. Four valid cases: | |
2958 | l %rx,0(0,%ry) -> lr %rx,%ry + bcr 0,0 | |
2959 | l %rx,0(%ry,0) -> lr %rx,%ry + bcr 0,0 | |
2960 | l %rx,0(%ry,%r12) -> lr %rx,%ry + bcr 0,0 | |
2961 | l %rx,0(%r12,%ry) -> lr %rx,%ry + bcr 0,0 */ | |
2962 | unsigned int insn, ry; | |
2963 | ||
2964 | insn = bfd_get_32 (input_bfd, contents + rel->r_offset); | |
2965 | ry = 0; | |
2966 | if ((insn & 0xff00f000) == 0x58000000) | |
2967 | /* l %rx,0(%ry,0) -> lr %rx,%ry + bcr 0,0 */ | |
2968 | ry = (insn & 0x000f0000); | |
2969 | else if ((insn & 0xff0f0000) == 0x58000000) | |
2970 | /* l %rx,0(0,%ry) -> lr %rx,%ry + bcr 0,0 */ | |
2971 | ry = (insn & 0x0000f000) << 4; | |
2972 | else if ((insn & 0xff00f000) == 0x5800c000) | |
2973 | /* l %rx,0(%ry,%r12) -> lr %rx,%ry + bcr 0,0 */ | |
2974 | ry = (insn & 0x000f0000); | |
2975 | else if ((insn & 0xff0f0000) == 0x580c0000) | |
2976 | /* l %rx,0(%r12,%ry) -> lr %rx,%ry + bcr 0,0 */ | |
2977 | ry = (insn & 0x0000f000) << 4; | |
2978 | else | |
2979 | invalid_tls_insn (input_bfd, input_section, rel); | |
2980 | insn = 0x18000700 | (insn & 0x00f00000) | ry; | |
2981 | bfd_put_32 (output_bfd, insn, contents + rel->r_offset); | |
2982 | } | |
2983 | } | |
2984 | else if (r_type == R_390_TLS_GDCALL) | |
2985 | { | |
2986 | unsigned int insn; | |
2987 | ||
2988 | insn = bfd_get_32 (input_bfd, contents + rel->r_offset); | |
77df2968 MS |
2989 | if ((insn & 0xff000fff) != 0x4d000000 && |
2990 | (insn & 0xffff0000) != 0xc0e50000) | |
69fc87f1 MS |
2991 | invalid_tls_insn (input_bfd, input_section, rel); |
2992 | if (!info->shared && (h == NULL || h->dynindx == -1)) | |
77df2968 MS |
2993 | { |
2994 | if ((insn & 0xff000000) == 0x4d000000) | |
2995 | { | |
2996 | /* GD->LE transition. | |
2997 | bas %r14,0(%rx,%r13) -> bc 0,0 */ | |
2998 | insn = 0x47000000; | |
2999 | } | |
3000 | else | |
3001 | { | |
3002 | /* GD->LE transition. | |
3003 | brasl %r14,_tls_get_addr@plt -> brcl 0,. */ | |
3004 | insn = 0xc0040000; | |
3005 | bfd_put_16 (output_bfd, 0x0000, | |
3006 | contents + rel->r_offset + 4); | |
3007 | } | |
3008 | } | |
69fc87f1 | 3009 | else |
77df2968 MS |
3010 | { |
3011 | if ((insn & 0xff000000) == 0x4d000000) | |
3012 | { | |
3013 | /* GD->IE transition. | |
3014 | bas %r14,0(%rx,%r13) -> l %r2,0(%r2,%r12) */ | |
3015 | insn = 0x5822c000; | |
3016 | } | |
3017 | else | |
3018 | { | |
3019 | /* GD->IE transition. | |
3020 | brasl %r14,__tls_get_addr@plt -> | |
3021 | l %r2,0(%r2,%r12) ; bcr 0,0 */ | |
3022 | insn = 0x5822c000; | |
3023 | bfd_put_16 (output_bfd, 0x0700, | |
3024 | contents + rel->r_offset + 4); | |
3025 | } | |
3026 | } | |
69fc87f1 MS |
3027 | bfd_put_32 (output_bfd, insn, contents + rel->r_offset); |
3028 | } | |
3029 | else if (r_type == R_390_TLS_LDCALL) | |
3030 | { | |
3031 | if (!info->shared) | |
3032 | { | |
3033 | unsigned int insn; | |
3034 | ||
3035 | insn = bfd_get_32 (input_bfd, contents + rel->r_offset); | |
77df2968 MS |
3036 | if ((insn & 0xff000fff) != 0x4d000000 && |
3037 | (insn & 0xffff0000) != 0xc0e50000) | |
69fc87f1 | 3038 | invalid_tls_insn (input_bfd, input_section, rel); |
77df2968 MS |
3039 | if ((insn & 0xff000000) == 0x4d000000) |
3040 | { | |
3041 | /* LD->LE transition. | |
3042 | bas %r14,0(%rx,%r13) -> bc 0,0 */ | |
3043 | insn = 0x47000000; | |
3044 | } | |
3045 | else | |
3046 | { | |
3047 | /* LD->LE transition. | |
3048 | brasl %r14,__tls_get_addr@plt -> brcl 0,. */ | |
3049 | insn = 0xc0040000; | |
3050 | bfd_put_16 (output_bfd, 0x0000, | |
3051 | contents + rel->r_offset + 4); | |
3052 | } | |
69fc87f1 MS |
3053 | bfd_put_32 (output_bfd, insn, contents + rel->r_offset); |
3054 | } | |
3055 | } | |
3056 | continue; | |
3057 | ||
0451c93c MS |
3058 | default: |
3059 | break; | |
3060 | } | |
ec338859 | 3061 | |
239e1f3a AM |
3062 | /* Dynamic relocs are not propagated for SEC_DEBUGGING sections |
3063 | because such sections are not SEC_ALLOC and thus ld.so will | |
3064 | not process them. */ | |
0451c93c | 3065 | if (unresolved_reloc |
239e1f3a | 3066 | && !((input_section->flags & SEC_DEBUGGING) != 0 |
f5385ebf | 3067 | && h->def_dynamic)) |
0451c93c | 3068 | (*_bfd_error_handler) |
843fe662 | 3069 | (_("%B(%A+0x%lx): unresolvable %s relocation against symbol `%s'"), |
d003868e AM |
3070 | input_bfd, |
3071 | input_section, | |
0451c93c | 3072 | (long) rel->r_offset, |
843fe662 | 3073 | howto->name, |
0451c93c | 3074 | h->root.root.string); |
ec338859 | 3075 | |
bd1ea41b MS |
3076 | if (r_type == R_390_20 |
3077 | || r_type == R_390_GOT20 | |
3078 | || r_type == R_390_GOTPLT20 | |
3079 | || r_type == R_390_TLS_GOTIE20) | |
3080 | { | |
3081 | relocation += rel->r_addend; | |
3082 | relocation = (relocation&0xfff) << 8 | (relocation&0xff000) >> 12; | |
3083 | r = _bfd_final_link_relocate (howto, input_bfd, input_section, | |
3084 | contents, rel->r_offset, | |
3085 | relocation, 0); | |
3086 | } | |
3087 | else | |
3088 | r = _bfd_final_link_relocate (howto, input_bfd, input_section, | |
3089 | contents, rel->r_offset, | |
3090 | relocation, rel->r_addend); | |
ec338859 | 3091 | |
a85d7ed0 NC |
3092 | if (r != bfd_reloc_ok) |
3093 | { | |
0451c93c | 3094 | const char *name; |
ec338859 | 3095 | |
0451c93c MS |
3096 | if (h != NULL) |
3097 | name = h->root.root.string; | |
3098 | else | |
a85d7ed0 | 3099 | { |
0451c93c MS |
3100 | name = bfd_elf_string_from_elf_section (input_bfd, |
3101 | symtab_hdr->sh_link, | |
3102 | sym->st_name); | |
3103 | if (name == NULL) | |
b34976b6 | 3104 | return FALSE; |
0451c93c MS |
3105 | if (*name == '\0') |
3106 | name = bfd_section_name (input_bfd, sec); | |
3107 | } | |
ec338859 | 3108 | |
0451c93c MS |
3109 | if (r == bfd_reloc_overflow) |
3110 | { | |
ec338859 | 3111 | |
0451c93c | 3112 | if (! ((*info->callbacks->reloc_overflow) |
dfeffb9f L |
3113 | (info, (h ? &h->root : NULL), name, howto->name, |
3114 | (bfd_vma) 0, input_bfd, input_section, | |
3115 | rel->r_offset))) | |
b34976b6 | 3116 | return FALSE; |
0451c93c MS |
3117 | } |
3118 | else | |
3119 | { | |
3120 | (*_bfd_error_handler) | |
d003868e AM |
3121 | (_("%B(%A+0x%lx): reloc against `%s': error %d"), |
3122 | input_bfd, input_section, | |
0451c93c | 3123 | (long) rel->r_offset, name, (int) r); |
b34976b6 | 3124 | return FALSE; |
a85d7ed0 NC |
3125 | } |
3126 | } | |
3127 | } | |
ec338859 | 3128 | |
b34976b6 | 3129 | return TRUE; |
a85d7ed0 NC |
3130 | } |
3131 | ||
3132 | /* Finish up dynamic symbol handling. We set the contents of various | |
3133 | dynamic sections here. */ | |
3134 | ||
b34976b6 | 3135 | static bfd_boolean |
a85d7ed0 NC |
3136 | elf_s390_finish_dynamic_symbol (output_bfd, info, h, sym) |
3137 | bfd *output_bfd; | |
3138 | struct bfd_link_info *info; | |
3139 | struct elf_link_hash_entry *h; | |
3140 | Elf_Internal_Sym *sym; | |
3141 | { | |
0451c93c | 3142 | struct elf_s390_link_hash_table *htab; |
ec338859 | 3143 | |
0451c93c | 3144 | htab = elf_s390_hash_table (info); |
ec338859 | 3145 | |
a85d7ed0 NC |
3146 | if (h->plt.offset != (bfd_vma) -1) |
3147 | { | |
0451c93c MS |
3148 | bfd_vma plt_index; |
3149 | bfd_vma got_offset; | |
a85d7ed0 | 3150 | Elf_Internal_Rela rela; |
947216bf | 3151 | bfd_byte *loc; |
a85d7ed0 | 3152 | bfd_vma relative_offset; |
ec338859 | 3153 | |
a85d7ed0 | 3154 | /* This symbol has an entry in the procedure linkage table. Set |
26e41594 | 3155 | it up. */ |
0451c93c MS |
3156 | if (h->dynindx == -1 |
3157 | || htab->splt == NULL | |
3158 | || htab->sgotplt == NULL | |
3159 | || htab->srelplt == NULL) | |
3160 | abort (); | |
a85d7ed0 | 3161 | |
dc810e39 | 3162 | /* Calc. index no. |
26e41594 | 3163 | Current offset - size first entry / entry size. */ |
a85d7ed0 NC |
3164 | plt_index = (h->plt.offset - PLT_FIRST_ENTRY_SIZE) / PLT_ENTRY_SIZE; |
3165 | ||
3166 | /* Offset in GOT is PLT index plus GOT headers(3) times 4, | |
26e41594 | 3167 | addr & GOT addr. */ |
a85d7ed0 NC |
3168 | got_offset = (plt_index + 3) * GOT_ENTRY_SIZE; |
3169 | ||
3170 | /* S390 uses halfwords for relative branch calc! */ | |
dc810e39 | 3171 | relative_offset = - ((PLT_FIRST_ENTRY_SIZE + |
26e41594 | 3172 | (PLT_ENTRY_SIZE * plt_index) + 18) / 2); |
a85d7ed0 | 3173 | /* If offset is > 32768, branch to a previous branch |
26e41594 | 3174 | 390 can only handle +-64 K jumps. */ |
dc810e39 | 3175 | if ( -32768 > (int) relative_offset ) |
26e41594 AM |
3176 | relative_offset |
3177 | = -(unsigned) (((65536 / PLT_ENTRY_SIZE - 1) * PLT_ENTRY_SIZE) / 2); | |
a85d7ed0 NC |
3178 | |
3179 | /* Fill in the entry in the procedure linkage table. */ | |
3180 | if (!info->shared) | |
0451c93c | 3181 | { |
26e41594 | 3182 | bfd_put_32 (output_bfd, (bfd_vma) PLT_ENTRY_WORD0, |
0451c93c MS |
3183 | htab->splt->contents + h->plt.offset); |
3184 | bfd_put_32 (output_bfd, (bfd_vma) PLT_ENTRY_WORD1, | |
3185 | htab->splt->contents + h->plt.offset + 4); | |
3186 | bfd_put_32 (output_bfd, (bfd_vma) PLT_ENTRY_WORD2, | |
3187 | htab->splt->contents + h->plt.offset + 8); | |
3188 | bfd_put_32 (output_bfd, (bfd_vma) PLT_ENTRY_WORD3, | |
3189 | htab->splt->contents + h->plt.offset + 12); | |
3190 | bfd_put_32 (output_bfd, (bfd_vma) PLT_ENTRY_WORD4, | |
3191 | htab->splt->contents + h->plt.offset + 16); | |
3192 | bfd_put_32 (output_bfd, (bfd_vma) 0+(relative_offset << 16), | |
3193 | htab->splt->contents + h->plt.offset + 20); | |
3194 | bfd_put_32 (output_bfd, | |
3195 | (htab->sgotplt->output_section->vma | |
3196 | + htab->sgotplt->output_offset | |
3197 | + got_offset), | |
3198 | htab->splt->contents + h->plt.offset + 24); | |
3199 | } | |
a85d7ed0 | 3200 | else if (got_offset < 4096) |
0451c93c MS |
3201 | { |
3202 | bfd_put_32 (output_bfd, (bfd_vma) PLT_PIC12_ENTRY_WORD0 + got_offset, | |
3203 | htab->splt->contents + h->plt.offset); | |
3204 | bfd_put_32 (output_bfd, (bfd_vma) PLT_PIC12_ENTRY_WORD1, | |
3205 | htab->splt->contents + h->plt.offset + 4); | |
3206 | bfd_put_32 (output_bfd, (bfd_vma) PLT_PIC12_ENTRY_WORD2, | |
3207 | htab->splt->contents + h->plt.offset + 8); | |
3208 | bfd_put_32 (output_bfd, (bfd_vma) PLT_PIC12_ENTRY_WORD3, | |
3209 | htab->splt->contents + h->plt.offset + 12); | |
3210 | bfd_put_32 (output_bfd, (bfd_vma) PLT_PIC12_ENTRY_WORD4, | |
3211 | htab->splt->contents + h->plt.offset + 16); | |
3212 | bfd_put_32 (output_bfd, (bfd_vma) 0+(relative_offset << 16), | |
3213 | htab->splt->contents + h->plt.offset + 20); | |
3214 | bfd_put_32 (output_bfd, (bfd_vma) 0, | |
3215 | htab->splt->contents + h->plt.offset + 24); | |
3216 | } | |
a85d7ed0 | 3217 | else if (got_offset < 32768) |
0451c93c MS |
3218 | { |
3219 | bfd_put_32 (output_bfd, (bfd_vma) PLT_PIC16_ENTRY_WORD0 + got_offset, | |
3220 | htab->splt->contents + h->plt.offset); | |
3221 | bfd_put_32 (output_bfd, (bfd_vma) PLT_PIC16_ENTRY_WORD1, | |
3222 | htab->splt->contents + h->plt.offset + 4); | |
3223 | bfd_put_32 (output_bfd, (bfd_vma) PLT_PIC16_ENTRY_WORD2, | |
3224 | htab->splt->contents + h->plt.offset + 8); | |
3225 | bfd_put_32 (output_bfd, (bfd_vma) PLT_PIC16_ENTRY_WORD3, | |
3226 | htab->splt->contents + h->plt.offset + 12); | |
3227 | bfd_put_32 (output_bfd, (bfd_vma) PLT_PIC16_ENTRY_WORD4, | |
3228 | htab->splt->contents + h->plt.offset + 16); | |
3229 | bfd_put_32 (output_bfd, (bfd_vma) 0+(relative_offset << 16), | |
3230 | htab->splt->contents + h->plt.offset + 20); | |
3231 | bfd_put_32 (output_bfd, (bfd_vma) 0, | |
3232 | htab->splt->contents + h->plt.offset + 24); | |
3233 | } | |
a85d7ed0 | 3234 | else |
0451c93c MS |
3235 | { |
3236 | bfd_put_32 (output_bfd, (bfd_vma) PLT_PIC_ENTRY_WORD0, | |
3237 | htab->splt->contents + h->plt.offset); | |
3238 | bfd_put_32 (output_bfd, (bfd_vma) PLT_PIC_ENTRY_WORD1, | |
3239 | htab->splt->contents + h->plt.offset + 4); | |
3240 | bfd_put_32 (output_bfd, (bfd_vma) PLT_PIC_ENTRY_WORD2, | |
3241 | htab->splt->contents + h->plt.offset + 8); | |
3242 | bfd_put_32 (output_bfd, (bfd_vma) PLT_PIC_ENTRY_WORD3, | |
3243 | htab->splt->contents + h->plt.offset + 12); | |
3244 | bfd_put_32 (output_bfd, (bfd_vma) PLT_PIC_ENTRY_WORD4, | |
3245 | htab->splt->contents + h->plt.offset + 16); | |
3246 | bfd_put_32 (output_bfd, (bfd_vma) 0+(relative_offset << 16), | |
3247 | htab->splt->contents + h->plt.offset + 20); | |
3248 | bfd_put_32 (output_bfd, got_offset, | |
3249 | htab->splt->contents + h->plt.offset + 24); | |
3250 | } | |
a85d7ed0 NC |
3251 | /* Insert offset into reloc. table here. */ |
3252 | bfd_put_32 (output_bfd, plt_index * sizeof (Elf32_External_Rela), | |
26e41594 | 3253 | htab->splt->contents + h->plt.offset + 28); |
a85d7ed0 NC |
3254 | |
3255 | /* Fill in the entry in the global offset table. | |
26e41594 | 3256 | Points to instruction after GOT offset. */ |
a85d7ed0 | 3257 | bfd_put_32 (output_bfd, |
0451c93c MS |
3258 | (htab->splt->output_section->vma |
3259 | + htab->splt->output_offset | |
a85d7ed0 NC |
3260 | + h->plt.offset |
3261 | + 12), | |
0451c93c | 3262 | htab->sgotplt->contents + got_offset); |
a85d7ed0 | 3263 | |
0451c93c MS |
3264 | /* Fill in the entry in the .rela.plt section. */ |
3265 | rela.r_offset = (htab->sgotplt->output_section->vma | |
3266 | + htab->sgotplt->output_offset | |
3267 | + got_offset); | |
3268 | rela.r_info = ELF32_R_INFO (h->dynindx, R_390_JMP_SLOT); | |
3269 | rela.r_addend = 0; | |
947216bf | 3270 | loc = htab->srelplt->contents + plt_index * sizeof (Elf32_External_Rela); |
0451c93c | 3271 | bfd_elf32_swap_reloca_out (output_bfd, &rela, loc); |
ec338859 | 3272 | |
f5385ebf | 3273 | if (!h->def_regular) |
a85d7ed0 NC |
3274 | { |
3275 | /* Mark the symbol as undefined, rather than as defined in | |
0451c93c MS |
3276 | the .plt section. Leave the value alone. This is a clue |
3277 | for the dynamic linker, to make function pointer | |
3278 | comparisons work between an application and shared | |
ec338859 | 3279 | library. */ |
a85d7ed0 NC |
3280 | sym->st_shndx = SHN_UNDEF; |
3281 | } | |
3282 | } | |
ec338859 | 3283 | |
69fc87f1 MS |
3284 | if (h->got.offset != (bfd_vma) -1 |
3285 | && elf_s390_hash_entry(h)->tls_type != GOT_TLS_GD | |
3286 | && elf_s390_hash_entry(h)->tls_type != GOT_TLS_IE | |
3287 | && elf_s390_hash_entry(h)->tls_type != GOT_TLS_IE_NLT) | |
a85d7ed0 | 3288 | { |
a85d7ed0 | 3289 | Elf_Internal_Rela rela; |
947216bf | 3290 | bfd_byte *loc; |
a85d7ed0 NC |
3291 | |
3292 | /* This symbol has an entry in the global offset table. Set it | |
26e41594 | 3293 | up. */ |
a85d7ed0 | 3294 | |
0451c93c MS |
3295 | if (htab->sgot == NULL || htab->srelgot == NULL) |
3296 | abort (); | |
a85d7ed0 | 3297 | |
0451c93c MS |
3298 | rela.r_offset = (htab->sgot->output_section->vma |
3299 | + htab->sgot->output_offset | |
dc810e39 | 3300 | + (h->got.offset &~ (bfd_vma) 1)); |
a85d7ed0 NC |
3301 | |
3302 | /* If this is a static link, or it is a -Bsymbolic link and the | |
3303 | symbol is defined locally or was forced to be local because | |
3304 | of a version file, we just want to emit a RELATIVE reloc. | |
3305 | The entry in the global offset table will already have been | |
3306 | initialized in the relocate_section function. */ | |
0451c93c MS |
3307 | if (info->shared |
3308 | && (info->symbolic | |
3309 | || h->dynindx == -1 | |
f5385ebf AM |
3310 | || h->forced_local) |
3311 | && h->def_regular) | |
0451c93c MS |
3312 | { |
3313 | BFD_ASSERT((h->got.offset & 1) != 0); | |
3314 | rela.r_info = ELF32_R_INFO (0, R_390_RELATIVE); | |
3315 | rela.r_addend = (h->root.u.def.value | |
26e41594 AM |
3316 | + h->root.u.def.section->output_section->vma |
3317 | + h->root.u.def.section->output_offset); | |
3318 | } | |
a85d7ed0 NC |
3319 | else |
3320 | { | |
3321 | BFD_ASSERT((h->got.offset & 1) == 0); | |
0451c93c | 3322 | bfd_put_32 (output_bfd, (bfd_vma) 0, htab->sgot->contents + h->got.offset); |
a85d7ed0 | 3323 | rela.r_info = ELF32_R_INFO (h->dynindx, R_390_GLOB_DAT); |
26e41594 AM |
3324 | rela.r_addend = 0; |
3325 | } | |
a85d7ed0 | 3326 | |
947216bf AM |
3327 | loc = htab->srelgot->contents; |
3328 | loc += htab->srelgot->reloc_count++ * sizeof (Elf32_External_Rela); | |
0451c93c | 3329 | bfd_elf32_swap_reloca_out (output_bfd, &rela, loc); |
a85d7ed0 NC |
3330 | } |
3331 | ||
f5385ebf | 3332 | if (h->needs_copy) |
a85d7ed0 | 3333 | { |
a85d7ed0 | 3334 | Elf_Internal_Rela rela; |
947216bf | 3335 | bfd_byte *loc; |
a85d7ed0 NC |
3336 | |
3337 | /* This symbols needs a copy reloc. Set it up. */ | |
3338 | ||
0451c93c MS |
3339 | if (h->dynindx == -1 |
3340 | || (h->root.type != bfd_link_hash_defined | |
3341 | && h->root.type != bfd_link_hash_defweak) | |
3342 | || htab->srelbss == NULL) | |
3343 | abort (); | |
a85d7ed0 NC |
3344 | |
3345 | rela.r_offset = (h->root.u.def.value | |
3346 | + h->root.u.def.section->output_section->vma | |
3347 | + h->root.u.def.section->output_offset); | |
3348 | rela.r_info = ELF32_R_INFO (h->dynindx, R_390_COPY); | |
3349 | rela.r_addend = 0; | |
947216bf AM |
3350 | loc = htab->srelbss->contents; |
3351 | loc += htab->srelbss->reloc_count++ * sizeof (Elf32_External_Rela); | |
0451c93c | 3352 | bfd_elf32_swap_reloca_out (output_bfd, &rela, loc); |
a85d7ed0 NC |
3353 | } |
3354 | ||
3355 | /* Mark some specially defined symbols as absolute. */ | |
3356 | if (strcmp (h->root.root.string, "_DYNAMIC") == 0 | |
22edb2f1 RS |
3357 | || h == htab->elf.hgot |
3358 | || h == htab->elf.hplt) | |
a85d7ed0 NC |
3359 | sym->st_shndx = SHN_ABS; |
3360 | ||
b34976b6 | 3361 | return TRUE; |
a85d7ed0 NC |
3362 | } |
3363 | ||
0451c93c MS |
3364 | /* Used to decide how to sort relocs in an optimal manner for the |
3365 | dynamic linker, before writing them out. */ | |
3366 | ||
3367 | static enum elf_reloc_type_class | |
3368 | elf_s390_reloc_type_class (rela) | |
3369 | const Elf_Internal_Rela *rela; | |
3370 | { | |
3371 | switch ((int) ELF32_R_TYPE (rela->r_info)) | |
3372 | { | |
3373 | case R_390_RELATIVE: | |
3374 | return reloc_class_relative; | |
3375 | case R_390_JMP_SLOT: | |
3376 | return reloc_class_plt; | |
3377 | case R_390_COPY: | |
3378 | return reloc_class_copy; | |
3379 | default: | |
3380 | return reloc_class_normal; | |
3381 | } | |
3382 | } | |
3383 | ||
a85d7ed0 NC |
3384 | /* Finish up the dynamic sections. */ |
3385 | ||
b34976b6 | 3386 | static bfd_boolean |
a85d7ed0 NC |
3387 | elf_s390_finish_dynamic_sections (output_bfd, info) |
3388 | bfd *output_bfd; | |
3389 | struct bfd_link_info *info; | |
3390 | { | |
0451c93c | 3391 | struct elf_s390_link_hash_table *htab; |
a85d7ed0 NC |
3392 | bfd *dynobj; |
3393 | asection *sdyn; | |
a85d7ed0 | 3394 | |
0451c93c MS |
3395 | htab = elf_s390_hash_table (info); |
3396 | dynobj = htab->elf.dynobj; | |
a85d7ed0 NC |
3397 | sdyn = bfd_get_section_by_name (dynobj, ".dynamic"); |
3398 | ||
0451c93c | 3399 | if (htab->elf.dynamic_sections_created) |
a85d7ed0 | 3400 | { |
a85d7ed0 NC |
3401 | Elf32_External_Dyn *dyncon, *dynconend; |
3402 | ||
0451c93c MS |
3403 | if (sdyn == NULL || htab->sgot == NULL) |
3404 | abort (); | |
a85d7ed0 NC |
3405 | |
3406 | dyncon = (Elf32_External_Dyn *) sdyn->contents; | |
eea6121a | 3407 | dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size); |
a85d7ed0 NC |
3408 | for (; dyncon < dynconend; dyncon++) |
3409 | { | |
3410 | Elf_Internal_Dyn dyn; | |
a85d7ed0 | 3411 | asection *s; |
ec338859 | 3412 | |
a85d7ed0 | 3413 | bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn); |
ec338859 | 3414 | |
a85d7ed0 NC |
3415 | switch (dyn.d_tag) |
3416 | { | |
3417 | default: | |
0451c93c | 3418 | continue; |
ec338859 | 3419 | |
a85d7ed0 | 3420 | case DT_PLTGOT: |
0451c93c MS |
3421 | dyn.d_un.d_ptr = htab->sgot->output_section->vma; |
3422 | break; | |
ec338859 | 3423 | |
a85d7ed0 | 3424 | case DT_JMPREL: |
0451c93c | 3425 | dyn.d_un.d_ptr = htab->srelplt->output_section->vma; |
a85d7ed0 NC |
3426 | break; |
3427 | ||
3428 | case DT_PLTRELSZ: | |
0451c93c | 3429 | s = htab->srelplt->output_section; |
eea6121a | 3430 | dyn.d_un.d_val = s->size; |
a85d7ed0 NC |
3431 | break; |
3432 | } | |
0451c93c MS |
3433 | |
3434 | bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon); | |
a85d7ed0 NC |
3435 | } |
3436 | ||
3437 | /* Fill in the special first entry in the procedure linkage table. */ | |
eea6121a | 3438 | if (htab->splt && htab->splt->size > 0) |
a85d7ed0 | 3439 | { |
26e41594 AM |
3440 | memset (htab->splt->contents, 0, PLT_FIRST_ENTRY_SIZE); |
3441 | if (info->shared) | |
0451c93c | 3442 | { |
dc810e39 | 3443 | bfd_put_32 (output_bfd, (bfd_vma) PLT_PIC_FIRST_ENTRY_WORD0, |
26e41594 | 3444 | htab->splt->contents ); |
dc810e39 | 3445 | bfd_put_32 (output_bfd, (bfd_vma) PLT_PIC_FIRST_ENTRY_WORD1, |
26e41594 | 3446 | htab->splt->contents +4 ); |
dc810e39 | 3447 | bfd_put_32 (output_bfd, (bfd_vma) PLT_PIC_FIRST_ENTRY_WORD2, |
26e41594 | 3448 | htab->splt->contents +8 ); |
dc810e39 | 3449 | bfd_put_32 (output_bfd, (bfd_vma) PLT_PIC_FIRST_ENTRY_WORD3, |
26e41594 | 3450 | htab->splt->contents +12 ); |
dc810e39 | 3451 | bfd_put_32 (output_bfd, (bfd_vma) PLT_PIC_FIRST_ENTRY_WORD4, |
26e41594 AM |
3452 | htab->splt->contents +16 ); |
3453 | } | |
3454 | else | |
3455 | { | |
3456 | bfd_put_32 (output_bfd, (bfd_vma)PLT_FIRST_ENTRY_WORD0, | |
3457 | htab->splt->contents ); | |
3458 | bfd_put_32 (output_bfd, (bfd_vma) PLT_FIRST_ENTRY_WORD1, | |
3459 | htab->splt->contents +4 ); | |
3460 | bfd_put_32 (output_bfd, (bfd_vma) PLT_FIRST_ENTRY_WORD2, | |
3461 | htab->splt->contents +8 ); | |
3462 | bfd_put_32 (output_bfd, (bfd_vma) PLT_FIRST_ENTRY_WORD3, | |
3463 | htab->splt->contents +12 ); | |
3464 | bfd_put_32 (output_bfd, (bfd_vma) PLT_FIRST_ENTRY_WORD4, | |
3465 | htab->splt->contents +16 ); | |
3466 | bfd_put_32 (output_bfd, (bfd_vma) PLT_FIRST_ENTRY_WORD5, | |
3467 | htab->splt->contents +20 ); | |
3468 | bfd_put_32 (output_bfd, | |
3469 | htab->sgotplt->output_section->vma | |
0451c93c | 3470 | + htab->sgotplt->output_offset, |
26e41594 AM |
3471 | htab->splt->contents + 24); |
3472 | } | |
0451c93c MS |
3473 | elf_section_data (htab->splt->output_section) |
3474 | ->this_hdr.sh_entsize = 4; | |
a85d7ed0 NC |
3475 | } |
3476 | ||
3477 | } | |
3478 | ||
0451c93c | 3479 | if (htab->sgotplt) |
a85d7ed0 | 3480 | { |
0451c93c | 3481 | /* Fill in the first three entries in the global offset table. */ |
eea6121a | 3482 | if (htab->sgotplt->size > 0) |
0451c93c MS |
3483 | { |
3484 | bfd_put_32 (output_bfd, | |
3485 | (sdyn == NULL ? (bfd_vma) 0 | |
3486 | : sdyn->output_section->vma + sdyn->output_offset), | |
3487 | htab->sgotplt->contents); | |
3488 | /* One entry for shared object struct ptr. */ | |
3489 | bfd_put_32 (output_bfd, (bfd_vma) 0, htab->sgotplt->contents + 4); | |
3490 | /* One entry for _dl_runtime_resolve. */ | |
3491 | bfd_put_32 (output_bfd, (bfd_vma) 0, htab->sgotplt->contents + 8); | |
3492 | } | |
a85d7ed0 | 3493 | |
0451c93c MS |
3494 | elf_section_data (htab->sgotplt->output_section) |
3495 | ->this_hdr.sh_entsize = 4; | |
3496 | } | |
b34976b6 | 3497 | return TRUE; |
a85d7ed0 NC |
3498 | } |
3499 | ||
b34976b6 | 3500 | static bfd_boolean |
979f4a38 NC |
3501 | elf_s390_grok_prstatus (abfd, note) |
3502 | bfd * abfd; | |
3503 | Elf_Internal_Note * note; | |
3504 | { | |
3505 | int offset; | |
eea6121a | 3506 | unsigned int size; |
979f4a38 NC |
3507 | |
3508 | switch (note->descsz) | |
3509 | { | |
3510 | default: | |
b34976b6 | 3511 | return FALSE; |
979f4a38 NC |
3512 | |
3513 | case 224: /* S/390 Linux. */ | |
3514 | /* pr_cursig */ | |
3515 | elf_tdata (abfd)->core_signal = bfd_get_16 (abfd, note->descdata + 12); | |
3516 | ||
3517 | /* pr_pid */ | |
3518 | elf_tdata (abfd)->core_pid = bfd_get_32 (abfd, note->descdata + 24); | |
3519 | ||
3520 | /* pr_reg */ | |
3521 | offset = 72; | |
eea6121a | 3522 | size = 144; |
979f4a38 NC |
3523 | break; |
3524 | } | |
3525 | ||
3526 | /* Make a ".reg/999" section. */ | |
3527 | return _bfd_elfcore_make_pseudosection (abfd, ".reg", | |
eea6121a | 3528 | size, note->descpos + offset); |
979f4a38 NC |
3529 | } |
3530 | ||
4c45e5c9 JJ |
3531 | /* Return address for Ith PLT stub in section PLT, for relocation REL |
3532 | or (bfd_vma) -1 if it should not be included. */ | |
3533 | ||
3534 | static bfd_vma | |
3535 | elf_s390_plt_sym_val (bfd_vma i, const asection *plt, | |
3536 | const arelent *rel ATTRIBUTE_UNUSED) | |
3537 | { | |
3538 | return plt->vma + PLT_FIRST_ENTRY_SIZE + i * PLT_ENTRY_SIZE; | |
3539 | } | |
3540 | ||
3541 | ||
a85d7ed0 NC |
3542 | #define TARGET_BIG_SYM bfd_elf32_s390_vec |
3543 | #define TARGET_BIG_NAME "elf32-s390" | |
3544 | #define ELF_ARCH bfd_arch_s390 | |
3545 | #define ELF_MACHINE_CODE EM_S390 | |
3546 | #define ELF_MACHINE_ALT1 EM_S390_OLD | |
3547 | #define ELF_MAXPAGESIZE 0x1000 | |
3548 | ||
3549 | #define elf_backend_can_gc_sections 1 | |
51b64d56 | 3550 | #define elf_backend_can_refcount 1 |
a85d7ed0 NC |
3551 | #define elf_backend_want_got_plt 1 |
3552 | #define elf_backend_plt_readonly 1 | |
3553 | #define elf_backend_want_plt_sym 0 | |
3554 | #define elf_backend_got_header_size 12 | |
b491616a | 3555 | #define elf_backend_rela_normal 1 |
a85d7ed0 | 3556 | |
26e41594 | 3557 | #define elf_info_to_howto elf_s390_info_to_howto |
a85d7ed0 | 3558 | |
a85d7ed0 NC |
3559 | #define bfd_elf32_bfd_is_local_label_name elf_s390_is_local_label_name |
3560 | #define bfd_elf32_bfd_link_hash_table_create elf_s390_link_hash_table_create | |
3561 | #define bfd_elf32_bfd_reloc_type_lookup elf_s390_reloc_type_lookup | |
157090f7 | 3562 | #define bfd_elf32_bfd_reloc_name_lookup elf_s390_reloc_name_lookup |
a85d7ed0 NC |
3563 | |
3564 | #define elf_backend_adjust_dynamic_symbol elf_s390_adjust_dynamic_symbol | |
26e41594 | 3565 | #define elf_backend_check_relocs elf_s390_check_relocs |
0451c93c MS |
3566 | #define elf_backend_copy_indirect_symbol elf_s390_copy_indirect_symbol |
3567 | #define elf_backend_create_dynamic_sections elf_s390_create_dynamic_sections | |
a85d7ed0 NC |
3568 | #define elf_backend_finish_dynamic_sections elf_s390_finish_dynamic_sections |
3569 | #define elf_backend_finish_dynamic_symbol elf_s390_finish_dynamic_symbol | |
26e41594 AM |
3570 | #define elf_backend_gc_mark_hook elf_s390_gc_mark_hook |
3571 | #define elf_backend_gc_sweep_hook elf_s390_gc_sweep_hook | |
0451c93c | 3572 | #define elf_backend_reloc_type_class elf_s390_reloc_type_class |
26e41594 | 3573 | #define elf_backend_relocate_section elf_s390_relocate_section |
a85d7ed0 | 3574 | #define elf_backend_size_dynamic_sections elf_s390_size_dynamic_sections |
74541ad4 | 3575 | #define elf_backend_init_index_section _bfd_elf_init_1_index_section |
29c2fb7c | 3576 | #define elf_backend_reloc_type_class elf_s390_reloc_type_class |
979f4a38 | 3577 | #define elf_backend_grok_prstatus elf_s390_grok_prstatus |
4c45e5c9 | 3578 | #define elf_backend_plt_sym_val elf_s390_plt_sym_val |
a85d7ed0 | 3579 | |
69fc87f1 | 3580 | #define bfd_elf32_mkobject elf_s390_mkobject |
26e41594 | 3581 | #define elf_backend_object_p elf_s390_object_p |
a85d7ed0 NC |
3582 | |
3583 | #include "elf32-target.h" |