Commit | Line | Data |
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a85d7ed0 | 1 | /* IBM S/390-specific support for 32-bit ELF |
7686d77d | 2 | Copyright 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, |
1d7e9d18 | 3 | 2011, 2012 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 | |
cd123cb7 | 10 | the Free Software Foundation; either version 3 of the License, or |
a85d7ed0 NC |
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 | ||
0ffa91dd NC |
677 | /* NOTE: Keep this structure in sync with |
678 | the one declared in elf64-s390.c. */ | |
69fc87f1 MS |
679 | struct elf_s390_obj_tdata |
680 | { | |
681 | struct elf_obj_tdata root; | |
682 | ||
0ffa91dd | 683 | /* TLS type for each local got entry. */ |
69fc87f1 MS |
684 | char *local_got_tls_type; |
685 | }; | |
686 | ||
687 | #define elf_s390_tdata(abfd) \ | |
688 | ((struct elf_s390_obj_tdata *) (abfd)->tdata.any) | |
689 | ||
690 | #define elf_s390_local_got_tls_type(abfd) \ | |
691 | (elf_s390_tdata (abfd)->local_got_tls_type) | |
692 | ||
0ffa91dd NC |
693 | #define is_s390_elf(bfd) \ |
694 | (bfd_get_flavour (bfd) == bfd_target_elf_flavour \ | |
695 | && elf_tdata (bfd) != NULL \ | |
4dfe6ac6 | 696 | && elf_object_id (bfd) == S390_ELF_DATA) |
0ffa91dd | 697 | |
69fc87f1 | 698 | static bfd_boolean |
62d7a5f6 | 699 | elf_s390_mkobject (bfd *abfd) |
69fc87f1 | 700 | { |
0ffa91dd | 701 | return bfd_elf_allocate_object (abfd, sizeof (struct elf_s390_obj_tdata), |
4dfe6ac6 | 702 | S390_ELF_DATA); |
69fc87f1 MS |
703 | } |
704 | ||
705 | static bfd_boolean | |
706 | elf_s390_object_p (abfd) | |
707 | bfd *abfd; | |
708 | { | |
69fc87f1 MS |
709 | /* Set the right machine number for an s390 elf32 file. */ |
710 | return bfd_default_set_arch_mach (abfd, bfd_arch_s390, bfd_mach_s390_31); | |
711 | } | |
712 | ||
a85d7ed0 NC |
713 | /* s390 ELF linker hash table. */ |
714 | ||
715 | struct elf_s390_link_hash_table | |
716 | { | |
0451c93c | 717 | struct elf_link_hash_table elf; |
a85d7ed0 | 718 | |
0451c93c MS |
719 | /* Short-cuts to get to dynamic linker sections. */ |
720 | asection *sgot; | |
721 | asection *sgotplt; | |
722 | asection *srelgot; | |
723 | asection *splt; | |
724 | asection *srelplt; | |
725 | asection *sdynbss; | |
726 | asection *srelbss; | |
ec338859 | 727 | |
69fc87f1 MS |
728 | union { |
729 | bfd_signed_vma refcount; | |
730 | bfd_vma offset; | |
731 | } tls_ldm_got; | |
732 | ||
87d72d41 AM |
733 | /* Small local sym cache. */ |
734 | struct sym_cache sym_cache; | |
0451c93c | 735 | }; |
a85d7ed0 NC |
736 | |
737 | /* Get the s390 ELF linker hash table from a link_info structure. */ | |
738 | ||
739 | #define elf_s390_hash_table(p) \ | |
4dfe6ac6 NC |
740 | (elf_hash_table_id ((struct elf_link_hash_table *) ((p)->hash)) \ |
741 | == S390_ELF_DATA ? ((struct elf_s390_link_hash_table *) ((p)->hash)) : NULL) | |
a85d7ed0 NC |
742 | |
743 | /* Create an entry in an s390 ELF linker hash table. */ | |
744 | ||
745 | static struct bfd_hash_entry * | |
0451c93c | 746 | link_hash_newfunc (entry, table, string) |
a85d7ed0 NC |
747 | struct bfd_hash_entry *entry; |
748 | struct bfd_hash_table *table; | |
749 | const char *string; | |
750 | { | |
a85d7ed0 NC |
751 | /* Allocate the structure if it has not already been allocated by a |
752 | subclass. */ | |
0451c93c MS |
753 | if (entry == NULL) |
754 | { | |
755 | entry = bfd_hash_allocate (table, | |
756 | sizeof (struct elf_s390_link_hash_entry)); | |
757 | if (entry == NULL) | |
758 | return entry; | |
759 | } | |
ec338859 | 760 | |
a85d7ed0 | 761 | /* Call the allocation method of the superclass. */ |
0451c93c MS |
762 | entry = _bfd_elf_link_hash_newfunc (entry, table, string); |
763 | if (entry != NULL) | |
a85d7ed0 | 764 | { |
0451c93c | 765 | struct elf_s390_link_hash_entry *eh; |
ec338859 | 766 | |
0451c93c MS |
767 | eh = (struct elf_s390_link_hash_entry *) entry; |
768 | eh->dyn_relocs = NULL; | |
5236c819 | 769 | eh->gotplt_refcount = 0; |
69fc87f1 | 770 | eh->tls_type = GOT_UNKNOWN; |
a85d7ed0 NC |
771 | } |
772 | ||
0451c93c | 773 | return entry; |
a85d7ed0 NC |
774 | } |
775 | ||
776 | /* Create an s390 ELF linker hash table. */ | |
777 | ||
778 | static struct bfd_link_hash_table * | |
779 | elf_s390_link_hash_table_create (abfd) | |
780 | bfd *abfd; | |
781 | { | |
782 | struct elf_s390_link_hash_table *ret; | |
dc810e39 | 783 | bfd_size_type amt = sizeof (struct elf_s390_link_hash_table); |
a85d7ed0 | 784 | |
e2d34d7d | 785 | ret = (struct elf_s390_link_hash_table *) bfd_malloc (amt); |
0451c93c | 786 | if (ret == NULL) |
a85d7ed0 NC |
787 | return NULL; |
788 | ||
66eb6687 | 789 | if (!_bfd_elf_link_hash_table_init (&ret->elf, abfd, link_hash_newfunc, |
4dfe6ac6 NC |
790 | sizeof (struct elf_s390_link_hash_entry), |
791 | S390_ELF_DATA)) | |
a85d7ed0 | 792 | { |
e2d34d7d | 793 | free (ret); |
a85d7ed0 NC |
794 | return NULL; |
795 | } | |
796 | ||
0451c93c MS |
797 | ret->sgot = NULL; |
798 | ret->sgotplt = NULL; | |
799 | ret->srelgot = NULL; | |
800 | ret->splt = NULL; | |
801 | ret->srelplt = NULL; | |
802 | ret->sdynbss = NULL; | |
803 | ret->srelbss = NULL; | |
69fc87f1 | 804 | ret->tls_ldm_got.refcount = 0; |
87d72d41 | 805 | ret->sym_cache.abfd = NULL; |
0451c93c MS |
806 | |
807 | return &ret->elf.root; | |
808 | } | |
809 | ||
810 | /* Create .got, .gotplt, and .rela.got sections in DYNOBJ, and set up | |
811 | shortcuts to them in our hash table. */ | |
812 | ||
b34976b6 | 813 | static bfd_boolean |
0451c93c MS |
814 | create_got_section (dynobj, info) |
815 | bfd *dynobj; | |
816 | struct bfd_link_info *info; | |
817 | { | |
818 | struct elf_s390_link_hash_table *htab; | |
819 | ||
820 | if (! _bfd_elf_create_got_section (dynobj, info)) | |
b34976b6 | 821 | return FALSE; |
0451c93c MS |
822 | |
823 | htab = elf_s390_hash_table (info); | |
824 | htab->sgot = bfd_get_section_by_name (dynobj, ".got"); | |
825 | htab->sgotplt = bfd_get_section_by_name (dynobj, ".got.plt"); | |
64e77c6d L |
826 | htab->srelgot = bfd_get_section_by_name (dynobj, ".rela.got"); |
827 | if (!htab->sgot || !htab->sgotplt || !htab->srelgot) | |
0451c93c MS |
828 | abort (); |
829 | ||
b34976b6 | 830 | return TRUE; |
0451c93c MS |
831 | } |
832 | ||
833 | /* Create .plt, .rela.plt, .got, .got.plt, .rela.got, .dynbss, and | |
834 | .rela.bss sections in DYNOBJ, and set up shortcuts to them in our | |
835 | hash table. */ | |
836 | ||
b34976b6 | 837 | static bfd_boolean |
0451c93c MS |
838 | elf_s390_create_dynamic_sections (dynobj, info) |
839 | bfd *dynobj; | |
840 | struct bfd_link_info *info; | |
841 | { | |
842 | struct elf_s390_link_hash_table *htab; | |
843 | ||
844 | htab = elf_s390_hash_table (info); | |
845 | if (!htab->sgot && !create_got_section (dynobj, info)) | |
b34976b6 | 846 | return FALSE; |
0451c93c MS |
847 | |
848 | if (!_bfd_elf_create_dynamic_sections (dynobj, info)) | |
b34976b6 | 849 | return FALSE; |
0451c93c MS |
850 | |
851 | htab->splt = bfd_get_section_by_name (dynobj, ".plt"); | |
852 | htab->srelplt = bfd_get_section_by_name (dynobj, ".rela.plt"); | |
853 | htab->sdynbss = bfd_get_section_by_name (dynobj, ".dynbss"); | |
854 | if (!info->shared) | |
855 | htab->srelbss = bfd_get_section_by_name (dynobj, ".rela.bss"); | |
856 | ||
857 | if (!htab->splt || !htab->srelplt || !htab->sdynbss | |
858 | || (!info->shared && !htab->srelbss)) | |
859 | abort (); | |
860 | ||
b34976b6 | 861 | return TRUE; |
a85d7ed0 NC |
862 | } |
863 | ||
0451c93c MS |
864 | /* Copy the extra info we tack onto an elf_link_hash_entry. */ |
865 | ||
866 | static void | |
fcfa13d2 AM |
867 | elf_s390_copy_indirect_symbol (info, dir, ind) |
868 | struct bfd_link_info *info; | |
0451c93c MS |
869 | struct elf_link_hash_entry *dir, *ind; |
870 | { | |
871 | struct elf_s390_link_hash_entry *edir, *eind; | |
872 | ||
873 | edir = (struct elf_s390_link_hash_entry *) dir; | |
874 | eind = (struct elf_s390_link_hash_entry *) ind; | |
875 | ||
876 | if (eind->dyn_relocs != NULL) | |
877 | { | |
878 | if (edir->dyn_relocs != NULL) | |
879 | { | |
880 | struct elf_s390_dyn_relocs **pp; | |
881 | struct elf_s390_dyn_relocs *p; | |
882 | ||
fcfa13d2 | 883 | /* Add reloc counts against the indirect sym to the direct sym |
0451c93c MS |
884 | list. Merge any entries against the same section. */ |
885 | for (pp = &eind->dyn_relocs; (p = *pp) != NULL; ) | |
886 | { | |
887 | struct elf_s390_dyn_relocs *q; | |
888 | ||
889 | for (q = edir->dyn_relocs; q != NULL; q = q->next) | |
890 | if (q->sec == p->sec) | |
891 | { | |
892 | q->pc_count += p->pc_count; | |
893 | q->count += p->count; | |
894 | *pp = p->next; | |
895 | break; | |
896 | } | |
897 | if (q == NULL) | |
898 | pp = &p->next; | |
899 | } | |
900 | *pp = edir->dyn_relocs; | |
901 | } | |
902 | ||
903 | edir->dyn_relocs = eind->dyn_relocs; | |
904 | eind->dyn_relocs = NULL; | |
905 | } | |
906 | ||
69fc87f1 MS |
907 | if (ind->root.type == bfd_link_hash_indirect |
908 | && dir->got.refcount <= 0) | |
909 | { | |
910 | edir->tls_type = eind->tls_type; | |
911 | eind->tls_type = GOT_UNKNOWN; | |
912 | } | |
913 | ||
64285810 MS |
914 | if (ELIMINATE_COPY_RELOCS |
915 | && ind->root.type != bfd_link_hash_indirect | |
f5385ebf AM |
916 | && dir->dynamic_adjusted) |
917 | { | |
918 | /* If called to transfer flags for a weakdef during processing | |
919 | of elf_adjust_dynamic_symbol, don't copy non_got_ref. | |
920 | We clear it ourselves for ELIMINATE_COPY_RELOCS. */ | |
921 | dir->ref_dynamic |= ind->ref_dynamic; | |
922 | dir->ref_regular |= ind->ref_regular; | |
923 | dir->ref_regular_nonweak |= ind->ref_regular_nonweak; | |
924 | dir->needs_plt |= ind->needs_plt; | |
925 | } | |
64285810 | 926 | else |
fcfa13d2 | 927 | _bfd_elf_link_hash_copy_indirect (info, dir, ind); |
0451c93c | 928 | } |
a85d7ed0 | 929 | |
69fc87f1 MS |
930 | static int |
931 | elf_s390_tls_transition (info, r_type, is_local) | |
932 | struct bfd_link_info *info; | |
933 | int r_type; | |
934 | int is_local; | |
935 | { | |
936 | if (info->shared) | |
937 | return r_type; | |
938 | ||
939 | switch (r_type) | |
940 | { | |
941 | case R_390_TLS_GD32: | |
942 | case R_390_TLS_IE32: | |
943 | if (is_local) | |
944 | return R_390_TLS_LE32; | |
945 | return R_390_TLS_IE32; | |
946 | case R_390_TLS_GOTIE32: | |
947 | if (is_local) | |
948 | return R_390_TLS_LE32; | |
949 | return R_390_TLS_GOTIE32; | |
950 | case R_390_TLS_LDM32: | |
951 | return R_390_TLS_LE32; | |
952 | } | |
953 | ||
954 | return r_type; | |
955 | } | |
956 | ||
a85d7ed0 NC |
957 | /* Look through the relocs for a section during the first phase, and |
958 | allocate space in the global offset table or procedure linkage | |
959 | table. */ | |
960 | ||
b34976b6 | 961 | static bfd_boolean |
a85d7ed0 NC |
962 | elf_s390_check_relocs (abfd, info, sec, relocs) |
963 | bfd *abfd; | |
964 | struct bfd_link_info *info; | |
965 | asection *sec; | |
966 | const Elf_Internal_Rela *relocs; | |
967 | { | |
0451c93c | 968 | struct elf_s390_link_hash_table *htab; |
a85d7ed0 NC |
969 | Elf_Internal_Shdr *symtab_hdr; |
970 | struct elf_link_hash_entry **sym_hashes; | |
a85d7ed0 NC |
971 | const Elf_Internal_Rela *rel; |
972 | const Elf_Internal_Rela *rel_end; | |
a85d7ed0 | 973 | asection *sreloc; |
5236c819 | 974 | bfd_signed_vma *local_got_refcounts; |
69fc87f1 | 975 | int tls_type, old_tls_type; |
a85d7ed0 | 976 | |
1049f94e | 977 | if (info->relocatable) |
b34976b6 | 978 | return TRUE; |
a85d7ed0 | 979 | |
0ffa91dd NC |
980 | BFD_ASSERT (is_s390_elf (abfd)); |
981 | ||
0451c93c | 982 | htab = elf_s390_hash_table (info); |
0ffa91dd | 983 | symtab_hdr = &elf_symtab_hdr (abfd); |
a85d7ed0 | 984 | sym_hashes = elf_sym_hashes (abfd); |
5236c819 | 985 | local_got_refcounts = elf_local_got_refcounts (abfd); |
a85d7ed0 | 986 | |
a85d7ed0 NC |
987 | sreloc = NULL; |
988 | ||
989 | rel_end = relocs + sec->reloc_count; | |
990 | for (rel = relocs; rel < rel_end; rel++) | |
991 | { | |
69fc87f1 | 992 | unsigned int r_type; |
a85d7ed0 NC |
993 | unsigned long r_symndx; |
994 | struct elf_link_hash_entry *h; | |
995 | ||
996 | r_symndx = ELF32_R_SYM (rel->r_info); | |
997 | ||
0451c93c MS |
998 | if (r_symndx >= NUM_SHDR_ENTRIES (symtab_hdr)) |
999 | { | |
d003868e AM |
1000 | (*_bfd_error_handler) (_("%B: bad symbol index: %d"), |
1001 | abfd, r_symndx); | |
b34976b6 | 1002 | return FALSE; |
0451c93c MS |
1003 | } |
1004 | ||
a85d7ed0 NC |
1005 | if (r_symndx < symtab_hdr->sh_info) |
1006 | h = NULL; | |
1007 | else | |
973a3492 L |
1008 | { |
1009 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
1010 | while (h->root.type == bfd_link_hash_indirect | |
1011 | || h->root.type == bfd_link_hash_warning) | |
1012 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
1013 | } | |
a85d7ed0 | 1014 | |
5236c819 MS |
1015 | /* Create got section and local_got_refcounts array if they |
1016 | are needed. */ | |
69fc87f1 MS |
1017 | r_type = elf_s390_tls_transition (info, |
1018 | ELF32_R_TYPE (rel->r_info), | |
1019 | h == NULL); | |
1020 | switch (r_type) | |
a85d7ed0 NC |
1021 | { |
1022 | case R_390_GOT12: | |
5236c819 | 1023 | case R_390_GOT16: |
bd1ea41b | 1024 | case R_390_GOT20: |
a85d7ed0 | 1025 | case R_390_GOT32: |
befc3abb | 1026 | case R_390_GOTENT: |
5236c819 MS |
1027 | case R_390_GOTPLT12: |
1028 | case R_390_GOTPLT16: | |
bd1ea41b | 1029 | case R_390_GOTPLT20: |
5236c819 MS |
1030 | case R_390_GOTPLT32: |
1031 | case R_390_GOTPLTENT: | |
69fc87f1 MS |
1032 | case R_390_TLS_GD32: |
1033 | case R_390_TLS_GOTIE12: | |
bd1ea41b | 1034 | case R_390_TLS_GOTIE20: |
69fc87f1 MS |
1035 | case R_390_TLS_GOTIE32: |
1036 | case R_390_TLS_IEENT: | |
1037 | case R_390_TLS_IE32: | |
1038 | case R_390_TLS_LDM32: | |
5236c819 MS |
1039 | if (h == NULL |
1040 | && local_got_refcounts == NULL) | |
a85d7ed0 | 1041 | { |
5236c819 | 1042 | bfd_size_type size; |
26e41594 | 1043 | |
5236c819 | 1044 | size = symtab_hdr->sh_info; |
69fc87f1 | 1045 | size *= (sizeof (bfd_signed_vma) + sizeof(char)); |
5236c819 MS |
1046 | local_got_refcounts = ((bfd_signed_vma *) |
1047 | bfd_zalloc (abfd, size)); | |
a85d7ed0 | 1048 | if (local_got_refcounts == NULL) |
5236c819 MS |
1049 | return FALSE; |
1050 | elf_local_got_refcounts (abfd) = local_got_refcounts; | |
69fc87f1 MS |
1051 | elf_s390_local_got_tls_type (abfd) |
1052 | = (char *) (local_got_refcounts + symtab_hdr->sh_info); | |
a85d7ed0 | 1053 | } |
5236c819 MS |
1054 | /* Fall through. */ |
1055 | case R_390_GOTOFF16: | |
1056 | case R_390_GOTOFF32: | |
0451c93c | 1057 | case R_390_GOTPC: |
befc3abb | 1058 | case R_390_GOTPCDBL: |
0451c93c MS |
1059 | if (htab->sgot == NULL) |
1060 | { | |
1061 | if (htab->elf.dynobj == NULL) | |
1062 | htab->elf.dynobj = abfd; | |
1063 | if (!create_got_section (htab->elf.dynobj, info)) | |
b34976b6 | 1064 | return FALSE; |
0451c93c | 1065 | } |
5236c819 MS |
1066 | } |
1067 | ||
69fc87f1 | 1068 | switch (r_type) |
5236c819 | 1069 | { |
5236c819 MS |
1070 | case R_390_GOTOFF16: |
1071 | case R_390_GOTOFF32: | |
1072 | case R_390_GOTPC: | |
1073 | case R_390_GOTPCDBL: | |
1074 | /* Got is created, nothing to be done. */ | |
a85d7ed0 NC |
1075 | break; |
1076 | ||
26e41594 AM |
1077 | case R_390_PLT16DBL: |
1078 | case R_390_PLT32DBL: | |
a85d7ed0 | 1079 | case R_390_PLT32: |
5236c819 MS |
1080 | case R_390_PLTOFF16: |
1081 | case R_390_PLTOFF32: | |
a85d7ed0 | 1082 | /* This symbol requires a procedure linkage table entry. We |
26e41594 AM |
1083 | actually build the entry in adjust_dynamic_symbol, |
1084 | because this might be a case of linking PIC code which is | |
1085 | never referenced by a dynamic object, in which case we | |
1086 | don't need to generate a procedure linkage table entry | |
1087 | after all. */ | |
a85d7ed0 NC |
1088 | |
1089 | /* If this is a local symbol, we resolve it directly without | |
26e41594 | 1090 | creating a procedure linkage table entry. */ |
5236c819 MS |
1091 | if (h != NULL) |
1092 | { | |
f5385ebf | 1093 | h->needs_plt = 1; |
5236c819 MS |
1094 | h->plt.refcount += 1; |
1095 | } | |
1096 | break; | |
a85d7ed0 | 1097 | |
5236c819 MS |
1098 | case R_390_GOTPLT12: |
1099 | case R_390_GOTPLT16: | |
bd1ea41b | 1100 | case R_390_GOTPLT20: |
5236c819 MS |
1101 | case R_390_GOTPLT32: |
1102 | case R_390_GOTPLTENT: | |
1103 | /* This symbol requires either a procedure linkage table entry | |
1104 | or an entry in the local got. We actually build the entry | |
1105 | in adjust_dynamic_symbol because whether this is really a | |
1106 | global reference can change and with it the fact if we have | |
1107 | to create a plt entry or a local got entry. To be able to | |
1108 | make a once global symbol a local one we have to keep track | |
1109 | of the number of gotplt references that exist for this | |
1110 | symbol. */ | |
1111 | if (h != NULL) | |
1112 | { | |
1113 | ((struct elf_s390_link_hash_entry *) h)->gotplt_refcount++; | |
f5385ebf | 1114 | h->needs_plt = 1; |
5236c819 MS |
1115 | h->plt.refcount += 1; |
1116 | } | |
1117 | else | |
1118 | local_got_refcounts[r_symndx] += 1; | |
a85d7ed0 NC |
1119 | break; |
1120 | ||
69fc87f1 MS |
1121 | case R_390_TLS_LDM32: |
1122 | htab->tls_ldm_got.refcount += 1; | |
1123 | break; | |
1124 | ||
1125 | case R_390_TLS_IE32: | |
1126 | case R_390_TLS_GOTIE12: | |
bd1ea41b | 1127 | case R_390_TLS_GOTIE20: |
69fc87f1 MS |
1128 | case R_390_TLS_GOTIE32: |
1129 | case R_390_TLS_IEENT: | |
1130 | if (info->shared) | |
1131 | info->flags |= DF_STATIC_TLS; | |
ae9a127f | 1132 | /* Fall through. */ |
69fc87f1 MS |
1133 | |
1134 | case R_390_GOT12: | |
26e41594 | 1135 | case R_390_GOT16: |
bd1ea41b | 1136 | case R_390_GOT20: |
69fc87f1 MS |
1137 | case R_390_GOT32: |
1138 | case R_390_GOTENT: | |
1139 | case R_390_TLS_GD32: | |
1140 | /* This symbol requires a global offset table entry. */ | |
1141 | switch (r_type) | |
1142 | { | |
1143 | default: | |
1144 | case R_390_GOT12: | |
1145 | case R_390_GOT16: | |
bd1ea41b | 1146 | case R_390_GOT20: |
69fc87f1 MS |
1147 | case R_390_GOT32: |
1148 | case R_390_GOTENT: | |
1149 | tls_type = GOT_NORMAL; | |
1150 | break; | |
1151 | case R_390_TLS_GD32: | |
1152 | tls_type = GOT_TLS_GD; | |
1153 | break; | |
1154 | case R_390_TLS_IE32: | |
1155 | case R_390_TLS_GOTIE32: | |
1156 | tls_type = GOT_TLS_IE; | |
1157 | break; | |
1158 | case R_390_TLS_GOTIE12: | |
bd1ea41b | 1159 | case R_390_TLS_GOTIE20: |
69fc87f1 MS |
1160 | case R_390_TLS_IEENT: |
1161 | tls_type = GOT_TLS_IE_NLT; | |
1162 | break; | |
1163 | } | |
1164 | ||
1165 | if (h != NULL) | |
1166 | { | |
1167 | h->got.refcount += 1; | |
1168 | old_tls_type = elf_s390_hash_entry(h)->tls_type; | |
1169 | } | |
1170 | else | |
1171 | { | |
1172 | local_got_refcounts[r_symndx] += 1; | |
1173 | old_tls_type = elf_s390_local_got_tls_type (abfd) [r_symndx]; | |
1174 | } | |
1175 | /* If a TLS symbol is accessed using IE at least once, | |
1176 | there is no point to use dynamic model for it. */ | |
1177 | if (old_tls_type != tls_type && old_tls_type != GOT_UNKNOWN) | |
1178 | { | |
1179 | if (old_tls_type == GOT_NORMAL || tls_type == GOT_NORMAL) | |
1180 | { | |
1181 | (*_bfd_error_handler) | |
d003868e AM |
1182 | (_("%B: `%s' accessed both as normal and thread local symbol"), |
1183 | abfd, h->root.root.string); | |
69fc87f1 MS |
1184 | return FALSE; |
1185 | } | |
1186 | if (old_tls_type > tls_type) | |
1187 | tls_type = old_tls_type; | |
1188 | } | |
1189 | ||
1190 | if (old_tls_type != tls_type) | |
1191 | { | |
1192 | if (h != NULL) | |
1193 | elf_s390_hash_entry (h)->tls_type = tls_type; | |
1194 | else | |
1195 | elf_s390_local_got_tls_type (abfd) [r_symndx] = tls_type; | |
1196 | } | |
1197 | ||
1198 | if (r_type != R_390_TLS_IE32) | |
1199 | break; | |
ae9a127f | 1200 | /* Fall through. */ |
69fc87f1 MS |
1201 | |
1202 | case R_390_TLS_LE32: | |
1203 | if (!info->shared) | |
1204 | break; | |
1205 | info->flags |= DF_STATIC_TLS; | |
ae9a127f | 1206 | /* Fall through. */ |
69fc87f1 | 1207 | |
26e41594 AM |
1208 | case R_390_8: |
1209 | case R_390_16: | |
a85d7ed0 | 1210 | case R_390_32: |
26e41594 AM |
1211 | case R_390_PC16: |
1212 | case R_390_PC16DBL: | |
befc3abb | 1213 | case R_390_PC32DBL: |
a85d7ed0 | 1214 | case R_390_PC32: |
0451c93c MS |
1215 | if (h != NULL && !info->shared) |
1216 | { | |
1217 | /* If this reloc is in a read-only section, we might | |
1218 | need a copy reloc. We can't check reliably at this | |
1219 | stage whether the section is read-only, as input | |
1220 | sections have not yet been mapped to output sections. | |
1221 | Tentatively set the flag for now, and correct in | |
1222 | adjust_dynamic_symbol. */ | |
f5385ebf | 1223 | h->non_got_ref = 1; |
ec338859 | 1224 | |
0451c93c MS |
1225 | /* We may need a .plt entry if the function this reloc |
1226 | refers to is in a shared lib. */ | |
1227 | h->plt.refcount += 1; | |
1228 | } | |
a85d7ed0 NC |
1229 | |
1230 | /* If we are creating a shared library, and this is a reloc | |
0451c93c MS |
1231 | against a global symbol, or a non PC relative reloc |
1232 | against a local symbol, then we need to copy the reloc | |
1233 | into the shared library. However, if we are linking with | |
1234 | -Bsymbolic, we do not need to copy a reloc against a | |
1235 | global symbol which is defined in an object we are | |
1236 | including in the link (i.e., DEF_REGULAR is set). At | |
1237 | this point we have not seen all the input files, so it is | |
1238 | possible that DEF_REGULAR is not set now but will be set | |
1239 | later (it is never cleared). In case of a weak definition, | |
1240 | DEF_REGULAR may be cleared later by a strong definition in | |
1241 | a shared library. We account for that possibility below by | |
1242 | storing information in the relocs_copied field of the hash | |
1243 | table entry. A similar situation occurs when creating | |
1244 | shared libraries and symbol visibility changes render the | |
1245 | symbol local. | |
1246 | ||
1247 | If on the other hand, we are creating an executable, we | |
1248 | may need to keep relocations for symbols satisfied by a | |
1249 | dynamic library if we manage to avoid copy relocs for the | |
1250 | symbol. */ | |
1251 | if ((info->shared | |
1252 | && (sec->flags & SEC_ALLOC) != 0 | |
ec338859 | 1253 | && ((ELF32_R_TYPE (rel->r_info) != R_390_PC16 |
0451c93c | 1254 | && ELF32_R_TYPE (rel->r_info) != R_390_PC16DBL |
befc3abb | 1255 | && ELF32_R_TYPE (rel->r_info) != R_390_PC32DBL |
0451c93c MS |
1256 | && ELF32_R_TYPE (rel->r_info) != R_390_PC32) |
1257 | || (h != NULL | |
8c21ca21 | 1258 | && (! SYMBOLIC_BIND (info, h) |
0451c93c | 1259 | || h->root.type == bfd_link_hash_defweak |
f5385ebf | 1260 | || !h->def_regular)))) |
64285810 MS |
1261 | || (ELIMINATE_COPY_RELOCS |
1262 | && !info->shared | |
0451c93c MS |
1263 | && (sec->flags & SEC_ALLOC) != 0 |
1264 | && h != NULL | |
1265 | && (h->root.type == bfd_link_hash_defweak | |
f5385ebf | 1266 | || !h->def_regular))) |
a85d7ed0 | 1267 | { |
ec338859 AM |
1268 | struct elf_s390_dyn_relocs *p; |
1269 | struct elf_s390_dyn_relocs **head; | |
1270 | ||
0451c93c MS |
1271 | /* We must copy these reloc types into the output file. |
1272 | Create a reloc section in dynobj and make room for | |
1273 | this reloc. */ | |
a85d7ed0 NC |
1274 | if (sreloc == NULL) |
1275 | { | |
0451c93c MS |
1276 | if (htab->elf.dynobj == NULL) |
1277 | htab->elf.dynobj = abfd; | |
a85d7ed0 | 1278 | |
83bac4b0 NC |
1279 | sreloc = _bfd_elf_make_dynamic_reloc_section |
1280 | (sec, htab->elf.dynobj, 2, abfd, /*rela?*/ TRUE); | |
1281 | ||
a85d7ed0 | 1282 | if (sreloc == NULL) |
83bac4b0 | 1283 | return FALSE; |
a85d7ed0 NC |
1284 | } |
1285 | ||
0451c93c MS |
1286 | /* If this is a global symbol, we count the number of |
1287 | relocations we need for this symbol. */ | |
1288 | if (h != NULL) | |
a85d7ed0 | 1289 | { |
ec338859 | 1290 | head = &((struct elf_s390_link_hash_entry *) h)->dyn_relocs; |
0451c93c MS |
1291 | } |
1292 | else | |
1293 | { | |
ec338859 AM |
1294 | /* Track dynamic relocs needed for local syms too. |
1295 | We really need local syms available to do this | |
1296 | easily. Oh well. */ | |
ec338859 | 1297 | asection *s; |
6edfbbad | 1298 | void *vpp; |
87d72d41 | 1299 | Elf_Internal_Sym *isym; |
ae9a127f | 1300 | |
87d72d41 AM |
1301 | isym = bfd_sym_from_r_symndx (&htab->sym_cache, |
1302 | abfd, r_symndx); | |
1303 | if (isym == NULL) | |
b34976b6 | 1304 | return FALSE; |
ec338859 | 1305 | |
87d72d41 AM |
1306 | s = bfd_section_from_elf_index (abfd, isym->st_shndx); |
1307 | if (s == NULL) | |
1308 | s = sec; | |
1309 | ||
6edfbbad DJ |
1310 | vpp = &elf_section_data (s)->local_dynrel; |
1311 | head = (struct elf_s390_dyn_relocs **) vpp; | |
ec338859 AM |
1312 | } |
1313 | ||
1314 | p = *head; | |
1315 | if (p == NULL || p->sec != sec) | |
1316 | { | |
1317 | bfd_size_type amt = sizeof *p; | |
ae9a127f | 1318 | |
ec338859 AM |
1319 | p = ((struct elf_s390_dyn_relocs *) |
1320 | bfd_alloc (htab->elf.dynobj, amt)); | |
1321 | if (p == NULL) | |
b34976b6 | 1322 | return FALSE; |
ec338859 AM |
1323 | p->next = *head; |
1324 | *head = p; | |
1325 | p->sec = sec; | |
1326 | p->count = 0; | |
1327 | p->pc_count = 0; | |
a85d7ed0 | 1328 | } |
ec338859 AM |
1329 | |
1330 | p->count += 1; | |
1331 | if (ELF32_R_TYPE (rel->r_info) == R_390_PC16 | |
1332 | || ELF32_R_TYPE (rel->r_info) == R_390_PC16DBL | |
befc3abb | 1333 | || ELF32_R_TYPE (rel->r_info) == R_390_PC32DBL |
ec338859 AM |
1334 | || ELF32_R_TYPE (rel->r_info) == R_390_PC32) |
1335 | p->pc_count += 1; | |
a85d7ed0 | 1336 | } |
a85d7ed0 | 1337 | break; |
ec338859 | 1338 | |
a85d7ed0 NC |
1339 | /* This relocation describes the C++ object vtable hierarchy. |
1340 | Reconstruct it for later use during GC. */ | |
26e41594 | 1341 | case R_390_GNU_VTINHERIT: |
c152c796 | 1342 | if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset)) |
26e41594 AM |
1343 | return FALSE; |
1344 | break; | |
ec338859 | 1345 | |
a85d7ed0 NC |
1346 | /* This relocation describes which C++ vtable entries are actually |
1347 | used. Record for later use during GC. */ | |
26e41594 | 1348 | case R_390_GNU_VTENTRY: |
d17e0c6e JB |
1349 | BFD_ASSERT (h != NULL); |
1350 | if (h != NULL | |
1351 | && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend)) | |
26e41594 AM |
1352 | return FALSE; |
1353 | break; | |
ec338859 | 1354 | |
a85d7ed0 NC |
1355 | default: |
1356 | break; | |
1357 | } | |
1358 | } | |
1359 | ||
b34976b6 | 1360 | return TRUE; |
a85d7ed0 NC |
1361 | } |
1362 | ||
1363 | /* Return the section that should be marked against GC for a given | |
1364 | relocation. */ | |
1365 | ||
1366 | static asection * | |
07adf181 AM |
1367 | elf_s390_gc_mark_hook (asection *sec, |
1368 | struct bfd_link_info *info, | |
1369 | Elf_Internal_Rela *rel, | |
1370 | struct elf_link_hash_entry *h, | |
1371 | Elf_Internal_Sym *sym) | |
a85d7ed0 NC |
1372 | { |
1373 | if (h != NULL) | |
07adf181 AM |
1374 | switch (ELF32_R_TYPE (rel->r_info)) |
1375 | { | |
1376 | case R_390_GNU_VTINHERIT: | |
1377 | case R_390_GNU_VTENTRY: | |
1378 | return NULL; | |
1379 | } | |
1380 | return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym); | |
a85d7ed0 | 1381 | |
a85d7ed0 NC |
1382 | } |
1383 | ||
1384 | /* Update the got entry reference counts for the section being removed. */ | |
1385 | ||
b34976b6 | 1386 | static bfd_boolean |
07adf181 AM |
1387 | elf_s390_gc_sweep_hook (bfd *abfd, |
1388 | struct bfd_link_info *info, | |
1389 | asection *sec, | |
1390 | const Elf_Internal_Rela *relocs) | |
a85d7ed0 NC |
1391 | { |
1392 | Elf_Internal_Shdr *symtab_hdr; | |
1393 | struct elf_link_hash_entry **sym_hashes; | |
1394 | bfd_signed_vma *local_got_refcounts; | |
1395 | const Elf_Internal_Rela *rel, *relend; | |
a85d7ed0 | 1396 | |
7dda2462 TG |
1397 | if (info->relocatable) |
1398 | return TRUE; | |
1399 | ||
ec338859 | 1400 | elf_section_data (sec)->local_dynrel = NULL; |
a85d7ed0 | 1401 | |
0ffa91dd | 1402 | symtab_hdr = &elf_symtab_hdr (abfd); |
0451c93c MS |
1403 | sym_hashes = elf_sym_hashes (abfd); |
1404 | local_got_refcounts = elf_local_got_refcounts (abfd); | |
a85d7ed0 NC |
1405 | |
1406 | relend = relocs + sec->reloc_count; | |
1407 | for (rel = relocs; rel < relend; rel++) | |
5236c819 | 1408 | { |
26e41594 AM |
1409 | unsigned long r_symndx; |
1410 | unsigned int r_type; | |
1411 | struct elf_link_hash_entry *h = NULL; | |
1412 | ||
5236c819 | 1413 | r_symndx = ELF32_R_SYM (rel->r_info); |
26e41594 AM |
1414 | if (r_symndx >= symtab_hdr->sh_info) |
1415 | { | |
1416 | struct elf_s390_link_hash_entry *eh; | |
1417 | struct elf_s390_dyn_relocs **pp; | |
1418 | struct elf_s390_dyn_relocs *p; | |
0451c93c | 1419 | |
26e41594 | 1420 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; |
3eb128b2 AM |
1421 | while (h->root.type == bfd_link_hash_indirect |
1422 | || h->root.type == bfd_link_hash_warning) | |
1423 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
26e41594 | 1424 | eh = (struct elf_s390_link_hash_entry *) h; |
5236c819 | 1425 | |
26e41594 AM |
1426 | for (pp = &eh->dyn_relocs; (p = *pp) != NULL; pp = &p->next) |
1427 | if (p->sec == sec) | |
1428 | { | |
1429 | /* Everything must go for SEC. */ | |
1430 | *pp = p->next; | |
1431 | break; | |
1432 | } | |
1433 | } | |
1434 | ||
1435 | r_type = ELF32_R_TYPE (rel->r_info); | |
1436 | r_type = elf_s390_tls_transition (info, r_type, h != NULL); | |
69fc87f1 | 1437 | switch (r_type) |
5236c819 | 1438 | { |
69fc87f1 MS |
1439 | case R_390_TLS_LDM32: |
1440 | if (elf_s390_hash_table (info)->tls_ldm_got.refcount > 0) | |
1441 | elf_s390_hash_table (info)->tls_ldm_got.refcount -= 1; | |
1442 | break; | |
1443 | ||
1444 | case R_390_TLS_GD32: | |
1445 | case R_390_TLS_IE32: | |
1446 | case R_390_TLS_GOTIE12: | |
bd1ea41b | 1447 | case R_390_TLS_GOTIE20: |
69fc87f1 MS |
1448 | case R_390_TLS_GOTIE32: |
1449 | case R_390_TLS_IEENT: | |
5236c819 MS |
1450 | case R_390_GOT12: |
1451 | case R_390_GOT16: | |
bd1ea41b | 1452 | case R_390_GOT20: |
5236c819 MS |
1453 | case R_390_GOT32: |
1454 | case R_390_GOTOFF16: | |
1455 | case R_390_GOTOFF32: | |
1456 | case R_390_GOTPC: | |
1457 | case R_390_GOTPCDBL: | |
1458 | case R_390_GOTENT: | |
1459 | if (h != NULL) | |
1460 | { | |
1461 | if (h->got.refcount > 0) | |
1462 | h->got.refcount -= 1; | |
1463 | } | |
1464 | else if (local_got_refcounts != NULL) | |
1465 | { | |
1466 | if (local_got_refcounts[r_symndx] > 0) | |
1467 | local_got_refcounts[r_symndx] -= 1; | |
1468 | } | |
26e41594 | 1469 | break; |
a85d7ed0 | 1470 | |
5236c819 MS |
1471 | case R_390_8: |
1472 | case R_390_12: | |
1473 | case R_390_16: | |
bd1ea41b | 1474 | case R_390_20: |
5236c819 MS |
1475 | case R_390_32: |
1476 | case R_390_PC16: | |
1477 | case R_390_PC16DBL: | |
1478 | case R_390_PC32DBL: | |
1479 | case R_390_PC32: | |
26e41594 AM |
1480 | if (info->shared) |
1481 | break; | |
1482 | /* Fall through. */ | |
1483 | ||
69fc87f1 MS |
1484 | case R_390_PLT16DBL: |
1485 | case R_390_PLT32DBL: | |
1486 | case R_390_PLT32: | |
1487 | case R_390_PLTOFF16: | |
1488 | case R_390_PLTOFF32: | |
1489 | if (h != NULL) | |
1490 | { | |
1491 | if (h->plt.refcount > 0) | |
1492 | h->plt.refcount -= 1; | |
1493 | } | |
1494 | break; | |
1495 | ||
1496 | case R_390_GOTPLT12: | |
1497 | case R_390_GOTPLT16: | |
bd1ea41b | 1498 | case R_390_GOTPLT20: |
69fc87f1 MS |
1499 | case R_390_GOTPLT32: |
1500 | case R_390_GOTPLTENT: | |
1501 | if (h != NULL) | |
1502 | { | |
1503 | if (h->plt.refcount > 0) | |
1504 | { | |
1505 | ((struct elf_s390_link_hash_entry *) h)->gotplt_refcount--; | |
1506 | h->plt.refcount -= 1; | |
1507 | } | |
1508 | } | |
1509 | else if (local_got_refcounts != NULL) | |
1510 | { | |
1511 | if (local_got_refcounts[r_symndx] > 0) | |
1512 | local_got_refcounts[r_symndx] -= 1; | |
1513 | } | |
1514 | break; | |
1515 | ||
5236c819 MS |
1516 | default: |
1517 | break; | |
1518 | } | |
1519 | } | |
a85d7ed0 | 1520 | |
b34976b6 | 1521 | return TRUE; |
a85d7ed0 NC |
1522 | } |
1523 | ||
5236c819 MS |
1524 | /* Make sure we emit a GOT entry if the symbol was supposed to have a PLT |
1525 | entry but we found we will not create any. Called when we find we will | |
1526 | not have any PLT for this symbol, by for example | |
1527 | elf_s390_adjust_dynamic_symbol when we're doing a proper dynamic link, | |
1528 | or elf_s390_size_dynamic_sections if no dynamic sections will be | |
1529 | created (we're only linking static objects). */ | |
1530 | ||
1531 | static void | |
1532 | elf_s390_adjust_gotplt (h) | |
1533 | struct elf_s390_link_hash_entry *h; | |
1534 | { | |
1535 | if (h->elf.root.type == bfd_link_hash_warning) | |
1536 | h = (struct elf_s390_link_hash_entry *) h->elf.root.u.i.link; | |
1537 | ||
1538 | if (h->gotplt_refcount <= 0) | |
1539 | return; | |
1540 | ||
1541 | /* We simply add the number of gotplt references to the number | |
1542 | * of got references for this symbol. */ | |
1543 | h->elf.got.refcount += h->gotplt_refcount; | |
1544 | h->gotplt_refcount = -1; | |
1545 | } | |
1546 | ||
a85d7ed0 NC |
1547 | /* Adjust a symbol defined by a dynamic object and referenced by a |
1548 | regular object. The current definition is in some section of the | |
1549 | dynamic object, but we're not including those sections. We have to | |
1550 | change the definition to something the rest of the link can | |
1551 | understand. */ | |
1552 | ||
b34976b6 | 1553 | static bfd_boolean |
a85d7ed0 NC |
1554 | elf_s390_adjust_dynamic_symbol (info, h) |
1555 | struct bfd_link_info *info; | |
1556 | struct elf_link_hash_entry *h; | |
1557 | { | |
0451c93c | 1558 | struct elf_s390_link_hash_table *htab; |
a85d7ed0 | 1559 | asection *s; |
a85d7ed0 | 1560 | |
a85d7ed0 NC |
1561 | /* If this is a function, put it in the procedure linkage table. We |
1562 | will fill in the contents of the procedure linkage table later | |
cedb70c5 | 1563 | (although we could actually do it here). */ |
a85d7ed0 | 1564 | if (h->type == STT_FUNC |
f5385ebf | 1565 | || h->needs_plt) |
a85d7ed0 | 1566 | { |
0451c93c | 1567 | if (h->plt.refcount <= 0 |
8c21ca21 AK |
1568 | || SYMBOL_CALLS_LOCAL (info, h) |
1569 | || (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT | |
1570 | && h->root.type != bfd_link_hash_undefweak)) | |
a85d7ed0 NC |
1571 | { |
1572 | /* This case can occur if we saw a PLT32 reloc in an input | |
26e41594 AM |
1573 | file, but the symbol was never referred to by a dynamic |
1574 | object, or if all references were garbage collected. In | |
a85d7ed0 NC |
1575 | such a case, we don't actually need to build a procedure |
1576 | linkage table, and we can just do a PC32 reloc instead. */ | |
1577 | h->plt.offset = (bfd_vma) -1; | |
f5385ebf | 1578 | h->needs_plt = 0; |
5236c819 | 1579 | elf_s390_adjust_gotplt((struct elf_s390_link_hash_entry *) h); |
a85d7ed0 NC |
1580 | } |
1581 | ||
b34976b6 | 1582 | return TRUE; |
a85d7ed0 | 1583 | } |
bbd7ec4a | 1584 | else |
0451c93c MS |
1585 | /* It's possible that we incorrectly decided a .plt reloc was |
1586 | needed for an R_390_PC32 reloc to a non-function sym in | |
1587 | check_relocs. We can't decide accurately between function and | |
1588 | non-function syms in check-relocs; Objects loaded later in | |
1589 | the link may change h->type. So fix it now. */ | |
bbd7ec4a | 1590 | h->plt.offset = (bfd_vma) -1; |
a85d7ed0 NC |
1591 | |
1592 | /* If this is a weak symbol, and there is a real definition, the | |
1593 | processor independent code will have arranged for us to see the | |
1594 | real definition first, and we can just use the same value. */ | |
f6e332e6 | 1595 | if (h->u.weakdef != NULL) |
a85d7ed0 | 1596 | { |
f6e332e6 AM |
1597 | BFD_ASSERT (h->u.weakdef->root.type == bfd_link_hash_defined |
1598 | || h->u.weakdef->root.type == bfd_link_hash_defweak); | |
1599 | h->root.u.def.section = h->u.weakdef->root.u.def.section; | |
1600 | h->root.u.def.value = h->u.weakdef->root.u.def.value; | |
64285810 | 1601 | if (ELIMINATE_COPY_RELOCS || info->nocopyreloc) |
f6e332e6 | 1602 | h->non_got_ref = h->u.weakdef->non_got_ref; |
b34976b6 | 1603 | return TRUE; |
a85d7ed0 NC |
1604 | } |
1605 | ||
1606 | /* This is a reference to a symbol defined by a dynamic object which | |
1607 | is not a function. */ | |
1608 | ||
1609 | /* If we are creating a shared library, we must presume that the | |
1610 | only references to the symbol are via the global offset table. | |
1611 | For such cases we need not do anything here; the relocations will | |
1612 | be handled correctly by relocate_section. */ | |
1613 | if (info->shared) | |
b34976b6 | 1614 | return TRUE; |
a85d7ed0 NC |
1615 | |
1616 | /* If there are no references to this symbol that do not use the | |
1617 | GOT, we don't need to generate a copy reloc. */ | |
f5385ebf | 1618 | if (!h->non_got_ref) |
b34976b6 | 1619 | return TRUE; |
a85d7ed0 | 1620 | |
0451c93c MS |
1621 | /* If -z nocopyreloc was given, we won't generate them either. */ |
1622 | if (info->nocopyreloc) | |
1623 | { | |
f5385ebf | 1624 | h->non_got_ref = 0; |
b34976b6 | 1625 | return TRUE; |
0451c93c MS |
1626 | } |
1627 | ||
64285810 | 1628 | if (ELIMINATE_COPY_RELOCS) |
0451c93c | 1629 | { |
64285810 MS |
1630 | struct elf_s390_link_hash_entry * eh; |
1631 | struct elf_s390_dyn_relocs *p; | |
0451c93c | 1632 | |
64285810 MS |
1633 | eh = (struct elf_s390_link_hash_entry *) h; |
1634 | for (p = eh->dyn_relocs; p != NULL; p = p->next) | |
1635 | { | |
1636 | s = p->sec->output_section; | |
1637 | if (s != NULL && (s->flags & SEC_READONLY) != 0) | |
1638 | break; | |
1639 | } | |
1640 | ||
1641 | /* If we didn't find any dynamic relocs in read-only sections, then | |
1642 | we'll be keeping the dynamic relocs and avoiding the copy reloc. */ | |
1643 | if (p == NULL) | |
1644 | { | |
f5385ebf | 1645 | h->non_got_ref = 0; |
64285810 MS |
1646 | return TRUE; |
1647 | } | |
0451c93c MS |
1648 | } |
1649 | ||
a85d7ed0 NC |
1650 | /* We must allocate the symbol in our .dynbss section, which will |
1651 | become part of the .bss section of the executable. There will be | |
1652 | an entry for this symbol in the .dynsym section. The dynamic | |
1653 | object will contain position independent code, so all references | |
1654 | from the dynamic object to this symbol will go through the global | |
1655 | offset table. The dynamic linker will use the .dynsym entry to | |
1656 | determine the address it must put in the global offset table, so | |
1657 | both the dynamic object and the regular object will refer to the | |
1658 | same memory location for the variable. */ | |
1659 | ||
0451c93c | 1660 | htab = elf_s390_hash_table (info); |
a85d7ed0 | 1661 | |
0451c93c MS |
1662 | /* We must generate a R_390_COPY reloc to tell the dynamic linker to |
1663 | copy the initial value out of the dynamic object and into the | |
1664 | runtime process image. */ | |
1d7e9d18 | 1665 | if ((h->root.u.def.section->flags & SEC_ALLOC) != 0 && h->size != 0) |
a85d7ed0 | 1666 | { |
eea6121a | 1667 | htab->srelbss->size += sizeof (Elf32_External_Rela); |
f5385ebf | 1668 | h->needs_copy = 1; |
a85d7ed0 NC |
1669 | } |
1670 | ||
0451c93c | 1671 | s = htab->sdynbss; |
a85d7ed0 | 1672 | |
027297b7 | 1673 | return _bfd_elf_adjust_dynamic_copy (h, s); |
a85d7ed0 NC |
1674 | } |
1675 | ||
0451c93c MS |
1676 | /* Allocate space in .plt, .got and associated reloc sections for |
1677 | dynamic relocs. */ | |
1678 | ||
b34976b6 | 1679 | static bfd_boolean |
0451c93c MS |
1680 | allocate_dynrelocs (h, inf) |
1681 | struct elf_link_hash_entry *h; | |
1682 | PTR inf; | |
1683 | { | |
1684 | struct bfd_link_info *info; | |
1685 | struct elf_s390_link_hash_table *htab; | |
1686 | struct elf_s390_link_hash_entry *eh; | |
1687 | struct elf_s390_dyn_relocs *p; | |
1688 | ||
e92d460e | 1689 | if (h->root.type == bfd_link_hash_indirect) |
b34976b6 | 1690 | return TRUE; |
0451c93c MS |
1691 | |
1692 | info = (struct bfd_link_info *) inf; | |
1693 | htab = elf_s390_hash_table (info); | |
1694 | ||
1695 | if (htab->elf.dynamic_sections_created | |
8c21ca21 | 1696 | && h->plt.refcount > 0) |
0451c93c MS |
1697 | { |
1698 | /* Make sure this symbol is output as a dynamic symbol. | |
1699 | Undefined weak syms won't yet be marked as dynamic. */ | |
1700 | if (h->dynindx == -1 | |
f5385ebf | 1701 | && !h->forced_local) |
0451c93c | 1702 | { |
c152c796 | 1703 | if (! bfd_elf_link_record_dynamic_symbol (info, h)) |
b34976b6 | 1704 | return FALSE; |
0451c93c MS |
1705 | } |
1706 | ||
82058a73 | 1707 | if (info->shared |
4ec72bde | 1708 | || WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, 0, h)) |
0451c93c MS |
1709 | { |
1710 | asection *s = htab->splt; | |
1711 | ||
1712 | /* If this is the first .plt entry, make room for the special | |
1713 | first entry. */ | |
eea6121a AM |
1714 | if (s->size == 0) |
1715 | s->size += PLT_FIRST_ENTRY_SIZE; | |
0451c93c | 1716 | |
eea6121a | 1717 | h->plt.offset = s->size; |
0451c93c MS |
1718 | |
1719 | /* If this symbol is not defined in a regular file, and we are | |
1720 | not generating a shared library, then set the symbol to this | |
1721 | location in the .plt. This is required to make function | |
1722 | pointers compare as equal between the normal executable and | |
1723 | the shared library. */ | |
1724 | if (! info->shared | |
f5385ebf | 1725 | && !h->def_regular) |
0451c93c MS |
1726 | { |
1727 | h->root.u.def.section = s; | |
1728 | h->root.u.def.value = h->plt.offset; | |
1729 | } | |
ec338859 | 1730 | |
0451c93c | 1731 | /* Make room for this entry. */ |
eea6121a | 1732 | s->size += PLT_ENTRY_SIZE; |
ec338859 | 1733 | |
0451c93c MS |
1734 | /* We also need to make an entry in the .got.plt section, which |
1735 | will be placed in the .got section by the linker script. */ | |
eea6121a | 1736 | htab->sgotplt->size += GOT_ENTRY_SIZE; |
0451c93c MS |
1737 | |
1738 | /* We also need to make an entry in the .rela.plt section. */ | |
eea6121a | 1739 | htab->srelplt->size += sizeof (Elf32_External_Rela); |
0451c93c MS |
1740 | } |
1741 | else | |
1742 | { | |
1743 | h->plt.offset = (bfd_vma) -1; | |
f5385ebf | 1744 | h->needs_plt = 0; |
5236c819 | 1745 | elf_s390_adjust_gotplt((struct elf_s390_link_hash_entry *) h); |
0451c93c | 1746 | } |
ec338859 | 1747 | } |
0451c93c MS |
1748 | else |
1749 | { | |
1750 | h->plt.offset = (bfd_vma) -1; | |
f5385ebf | 1751 | h->needs_plt = 0; |
5236c819 | 1752 | elf_s390_adjust_gotplt((struct elf_s390_link_hash_entry *) h); |
ec338859 AM |
1753 | } |
1754 | ||
69fc87f1 MS |
1755 | /* If R_390_TLS_{IE32,GOTIE32,GOTIE12,IEENT} symbol is now local to |
1756 | the binary, we can optimize a bit. IE32 and GOTIE32 get converted | |
1757 | to R_390_TLS_LE32 requiring no TLS entry. For GOTIE12 and IEENT | |
1758 | we can save the dynamic TLS relocation. */ | |
1759 | if (h->got.refcount > 0 | |
1760 | && !info->shared | |
1761 | && h->dynindx == -1 | |
1762 | && elf_s390_hash_entry(h)->tls_type >= GOT_TLS_IE) | |
0451c93c | 1763 | { |
69fc87f1 MS |
1764 | if (elf_s390_hash_entry(h)->tls_type == GOT_TLS_IE_NLT) |
1765 | /* For the GOTIE access without a literal pool entry the offset has | |
1766 | to be stored somewhere. The immediate value in the instruction | |
1767 | is not bit enough so the value is stored in the got. */ | |
1768 | { | |
eea6121a AM |
1769 | h->got.offset = htab->sgot->size; |
1770 | htab->sgot->size += GOT_ENTRY_SIZE; | |
69fc87f1 MS |
1771 | } |
1772 | else | |
1773 | h->got.offset = (bfd_vma) -1; | |
1774 | } | |
1775 | else if (h->got.refcount > 0) | |
1776 | { | |
0451c93c | 1777 | asection *s; |
b34976b6 | 1778 | bfd_boolean dyn; |
69fc87f1 | 1779 | int tls_type = elf_s390_hash_entry(h)->tls_type; |
0451c93c MS |
1780 | |
1781 | /* Make sure this symbol is output as a dynamic symbol. | |
1782 | Undefined weak syms won't yet be marked as dynamic. */ | |
1783 | if (h->dynindx == -1 | |
f5385ebf | 1784 | && !h->forced_local) |
0451c93c | 1785 | { |
c152c796 | 1786 | if (! bfd_elf_link_record_dynamic_symbol (info, h)) |
b34976b6 | 1787 | return FALSE; |
0451c93c MS |
1788 | } |
1789 | ||
1790 | s = htab->sgot; | |
eea6121a AM |
1791 | h->got.offset = s->size; |
1792 | s->size += GOT_ENTRY_SIZE; | |
69fc87f1 MS |
1793 | /* R_390_TLS_GD32 needs 2 consecutive GOT slots. */ |
1794 | if (tls_type == GOT_TLS_GD) | |
eea6121a | 1795 | s->size += GOT_ENTRY_SIZE; |
0451c93c | 1796 | dyn = htab->elf.dynamic_sections_created; |
69fc87f1 MS |
1797 | /* R_390_TLS_IE32 needs one dynamic relocation, |
1798 | R_390_TLS_GD32 needs one if local symbol and two if global. */ | |
1799 | if ((tls_type == GOT_TLS_GD && h->dynindx == -1) | |
1800 | || tls_type >= GOT_TLS_IE) | |
eea6121a | 1801 | htab->srelgot->size += sizeof (Elf32_External_Rela); |
69fc87f1 | 1802 | else if (tls_type == GOT_TLS_GD) |
eea6121a | 1803 | htab->srelgot->size += 2 * sizeof (Elf32_External_Rela); |
82058a73 MS |
1804 | else if ((ELF_ST_VISIBILITY (h->other) == STV_DEFAULT |
1805 | || h->root.type != bfd_link_hash_undefweak) | |
1806 | && (info->shared | |
1807 | || WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, 0, h))) | |
eea6121a | 1808 | htab->srelgot->size += sizeof (Elf32_External_Rela); |
0451c93c MS |
1809 | } |
1810 | else | |
1811 | h->got.offset = (bfd_vma) -1; | |
1812 | ||
1813 | eh = (struct elf_s390_link_hash_entry *) h; | |
1814 | if (eh->dyn_relocs == NULL) | |
b34976b6 | 1815 | return TRUE; |
0451c93c MS |
1816 | |
1817 | /* In the shared -Bsymbolic case, discard space allocated for | |
1818 | dynamic pc-relative relocs against symbols which turn out to be | |
1819 | defined in regular objects. For the normal shared case, discard | |
1820 | space for pc-relative relocs that have become local due to symbol | |
1821 | visibility changes. */ | |
1822 | ||
1823 | if (info->shared) | |
1824 | { | |
8c21ca21 | 1825 | if (SYMBOL_CALLS_LOCAL (info, h)) |
0451c93c MS |
1826 | { |
1827 | struct elf_s390_dyn_relocs **pp; | |
1828 | ||
1829 | for (pp = &eh->dyn_relocs; (p = *pp) != NULL; ) | |
1830 | { | |
1831 | p->count -= p->pc_count; | |
1832 | p->pc_count = 0; | |
1833 | if (p->count == 0) | |
1834 | *pp = p->next; | |
1835 | else | |
1836 | pp = &p->next; | |
1837 | } | |
1838 | } | |
82058a73 MS |
1839 | |
1840 | /* Also discard relocs on undefined weak syms with non-default | |
1841 | visibility. */ | |
22d606e9 | 1842 | if (eh->dyn_relocs != NULL |
82058a73 | 1843 | && h->root.type == bfd_link_hash_undefweak) |
22d606e9 AM |
1844 | { |
1845 | if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT) | |
1846 | eh->dyn_relocs = NULL; | |
1847 | ||
1848 | /* Make sure undefined weak symbols are output as a dynamic | |
1849 | symbol in PIEs. */ | |
1850 | else if (h->dynindx == -1 | |
1851 | && !h->forced_local) | |
1852 | { | |
1853 | if (! bfd_elf_link_record_dynamic_symbol (info, h)) | |
1854 | return FALSE; | |
1855 | } | |
1856 | } | |
0451c93c | 1857 | } |
64285810 | 1858 | else if (ELIMINATE_COPY_RELOCS) |
0451c93c MS |
1859 | { |
1860 | /* For the non-shared case, discard space for relocs against | |
1861 | symbols which turn out to need copy relocs or are not | |
1862 | dynamic. */ | |
1863 | ||
f5385ebf AM |
1864 | if (!h->non_got_ref |
1865 | && ((h->def_dynamic | |
1866 | && !h->def_regular) | |
0451c93c MS |
1867 | || (htab->elf.dynamic_sections_created |
1868 | && (h->root.type == bfd_link_hash_undefweak | |
1869 | || h->root.type == bfd_link_hash_undefined)))) | |
1870 | { | |
1871 | /* Make sure this symbol is output as a dynamic symbol. | |
1872 | Undefined weak syms won't yet be marked as dynamic. */ | |
1873 | if (h->dynindx == -1 | |
f5385ebf | 1874 | && !h->forced_local) |
0451c93c | 1875 | { |
c152c796 | 1876 | if (! bfd_elf_link_record_dynamic_symbol (info, h)) |
b34976b6 | 1877 | return FALSE; |
0451c93c MS |
1878 | } |
1879 | ||
1880 | /* If that succeeded, we know we'll be keeping all the | |
1881 | relocs. */ | |
1882 | if (h->dynindx != -1) | |
1883 | goto keep; | |
1884 | } | |
1885 | ||
1886 | eh->dyn_relocs = NULL; | |
1887 | ||
ec338859 | 1888 | keep: ; |
0451c93c MS |
1889 | } |
1890 | ||
1891 | /* Finally, allocate space. */ | |
1892 | for (p = eh->dyn_relocs; p != NULL; p = p->next) | |
1893 | { | |
1894 | asection *sreloc = elf_section_data (p->sec)->sreloc; | |
ae9a127f | 1895 | |
eea6121a | 1896 | sreloc->size += p->count * sizeof (Elf32_External_Rela); |
0451c93c MS |
1897 | } |
1898 | ||
b34976b6 | 1899 | return TRUE; |
0451c93c MS |
1900 | } |
1901 | ||
1902 | /* Find any dynamic relocs that apply to read-only sections. */ | |
1903 | ||
b34976b6 | 1904 | static bfd_boolean |
0451c93c MS |
1905 | readonly_dynrelocs (h, inf) |
1906 | struct elf_link_hash_entry *h; | |
1907 | PTR inf; | |
1908 | { | |
1909 | struct elf_s390_link_hash_entry *eh; | |
1910 | struct elf_s390_dyn_relocs *p; | |
1911 | ||
1912 | eh = (struct elf_s390_link_hash_entry *) h; | |
1913 | for (p = eh->dyn_relocs; p != NULL; p = p->next) | |
1914 | { | |
1915 | asection *s = p->sec->output_section; | |
1916 | ||
1917 | if (s != NULL && (s->flags & SEC_READONLY) != 0) | |
1918 | { | |
1919 | struct bfd_link_info *info = (struct bfd_link_info *) inf; | |
1920 | ||
1921 | info->flags |= DF_TEXTREL; | |
1922 | ||
1923 | /* Not an error, just cut short the traversal. */ | |
b34976b6 | 1924 | return FALSE; |
0451c93c MS |
1925 | } |
1926 | } | |
b34976b6 | 1927 | return TRUE; |
0451c93c MS |
1928 | } |
1929 | ||
a85d7ed0 NC |
1930 | /* Set the sizes of the dynamic sections. */ |
1931 | ||
b34976b6 | 1932 | static bfd_boolean |
a85d7ed0 | 1933 | elf_s390_size_dynamic_sections (output_bfd, info) |
29c2fb7c | 1934 | bfd *output_bfd ATTRIBUTE_UNUSED; |
a85d7ed0 NC |
1935 | struct bfd_link_info *info; |
1936 | { | |
0451c93c | 1937 | struct elf_s390_link_hash_table *htab; |
a85d7ed0 NC |
1938 | bfd *dynobj; |
1939 | asection *s; | |
b34976b6 | 1940 | bfd_boolean relocs; |
0451c93c | 1941 | bfd *ibfd; |
a85d7ed0 | 1942 | |
0451c93c MS |
1943 | htab = elf_s390_hash_table (info); |
1944 | dynobj = htab->elf.dynobj; | |
1945 | if (dynobj == NULL) | |
1946 | abort (); | |
a85d7ed0 | 1947 | |
0451c93c | 1948 | if (htab->elf.dynamic_sections_created) |
a85d7ed0 NC |
1949 | { |
1950 | /* Set the contents of the .interp section to the interpreter. */ | |
36af4a4e | 1951 | if (info->executable) |
a85d7ed0 NC |
1952 | { |
1953 | s = bfd_get_section_by_name (dynobj, ".interp"); | |
0451c93c MS |
1954 | if (s == NULL) |
1955 | abort (); | |
eea6121a | 1956 | s->size = sizeof ELF_DYNAMIC_INTERPRETER; |
a85d7ed0 NC |
1957 | s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER; |
1958 | } | |
1959 | } | |
a85d7ed0 | 1960 | |
0451c93c MS |
1961 | /* Set up .got offsets for local syms, and space for local dynamic |
1962 | relocs. */ | |
1963 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next) | |
a85d7ed0 | 1964 | { |
0451c93c MS |
1965 | bfd_signed_vma *local_got; |
1966 | bfd_signed_vma *end_local_got; | |
69fc87f1 | 1967 | char *local_tls_type; |
0451c93c MS |
1968 | bfd_size_type locsymcount; |
1969 | Elf_Internal_Shdr *symtab_hdr; | |
1970 | asection *srela; | |
a85d7ed0 | 1971 | |
0ffa91dd | 1972 | if (! is_s390_elf (ibfd)) |
a85d7ed0 NC |
1973 | continue; |
1974 | ||
0451c93c | 1975 | for (s = ibfd->sections; s != NULL; s = s->next) |
a85d7ed0 | 1976 | { |
ec338859 | 1977 | struct elf_s390_dyn_relocs *p; |
0451c93c | 1978 | |
6edfbbad | 1979 | for (p = elf_section_data (s)->local_dynrel; p != NULL; p = p->next) |
a85d7ed0 | 1980 | { |
ec338859 AM |
1981 | if (!bfd_is_abs_section (p->sec) |
1982 | && bfd_is_abs_section (p->sec->output_section)) | |
1983 | { | |
1984 | /* Input section has been discarded, either because | |
1985 | it is a copy of a linkonce section or due to | |
1986 | linker script /DISCARD/, so we'll be discarding | |
1987 | the relocs too. */ | |
1988 | } | |
248866a8 | 1989 | else if (p->count != 0) |
ec338859 AM |
1990 | { |
1991 | srela = elf_section_data (p->sec)->sreloc; | |
eea6121a | 1992 | srela->size += p->count * sizeof (Elf32_External_Rela); |
248866a8 AM |
1993 | if ((p->sec->output_section->flags & SEC_READONLY) != 0) |
1994 | info->flags |= DF_TEXTREL; | |
ec338859 | 1995 | } |
a85d7ed0 NC |
1996 | } |
1997 | } | |
0451c93c MS |
1998 | |
1999 | local_got = elf_local_got_refcounts (ibfd); | |
2000 | if (!local_got) | |
2001 | continue; | |
2002 | ||
0ffa91dd | 2003 | symtab_hdr = &elf_symtab_hdr (ibfd); |
0451c93c MS |
2004 | locsymcount = symtab_hdr->sh_info; |
2005 | end_local_got = local_got + locsymcount; | |
69fc87f1 | 2006 | local_tls_type = elf_s390_local_got_tls_type (ibfd); |
0451c93c MS |
2007 | s = htab->sgot; |
2008 | srela = htab->srelgot; | |
69fc87f1 | 2009 | for (; local_got < end_local_got; ++local_got, ++local_tls_type) |
a85d7ed0 | 2010 | { |
0451c93c | 2011 | if (*local_got > 0) |
a85d7ed0 | 2012 | { |
eea6121a AM |
2013 | *local_got = s->size; |
2014 | s->size += GOT_ENTRY_SIZE; | |
69fc87f1 | 2015 | if (*local_tls_type == GOT_TLS_GD) |
eea6121a | 2016 | s->size += GOT_ENTRY_SIZE; |
0451c93c | 2017 | if (info->shared) |
eea6121a | 2018 | srela->size += sizeof (Elf32_External_Rela); |
a85d7ed0 NC |
2019 | } |
2020 | else | |
0451c93c MS |
2021 | *local_got = (bfd_vma) -1; |
2022 | } | |
2023 | } | |
2024 | ||
69fc87f1 MS |
2025 | if (htab->tls_ldm_got.refcount > 0) |
2026 | { | |
2027 | /* Allocate 2 got entries and 1 dynamic reloc for R_390_TLS_LDM32 | |
2028 | relocs. */ | |
eea6121a AM |
2029 | htab->tls_ldm_got.offset = htab->sgot->size; |
2030 | htab->sgot->size += 2 * GOT_ENTRY_SIZE; | |
2031 | htab->srelgot->size += sizeof (Elf32_External_Rela); | |
69fc87f1 MS |
2032 | } |
2033 | else | |
2034 | htab->tls_ldm_got.offset = -1; | |
2035 | ||
0451c93c MS |
2036 | /* Allocate global sym .plt and .got entries, and space for global |
2037 | sym dynamic relocs. */ | |
2038 | elf_link_hash_traverse (&htab->elf, allocate_dynrelocs, (PTR) info); | |
2039 | ||
2040 | /* We now have determined the sizes of the various dynamic sections. | |
2041 | Allocate memory for them. */ | |
b34976b6 | 2042 | relocs = FALSE; |
0451c93c MS |
2043 | for (s = dynobj->sections; s != NULL; s = s->next) |
2044 | { | |
2045 | if ((s->flags & SEC_LINKER_CREATED) == 0) | |
2046 | continue; | |
2047 | ||
2048 | if (s == htab->splt | |
2049 | || s == htab->sgot | |
c456f082 AM |
2050 | || s == htab->sgotplt |
2051 | || s == htab->sdynbss) | |
0451c93c MS |
2052 | { |
2053 | /* Strip this section if we don't need it; see the | |
2054 | comment below. */ | |
a85d7ed0 | 2055 | } |
0112cd26 | 2056 | else if (CONST_STRNEQ (bfd_get_section_name (dynobj, s), ".rela")) |
0451c93c | 2057 | { |
eea6121a | 2058 | if (s->size != 0) |
b34976b6 | 2059 | relocs = TRUE; |
ec338859 | 2060 | |
0451c93c MS |
2061 | /* We use the reloc_count field as a counter if we need |
2062 | to copy relocs into the output file. */ | |
2063 | s->reloc_count = 0; | |
2064 | } | |
2065 | else | |
a85d7ed0 NC |
2066 | { |
2067 | /* It's not one of our sections, so don't allocate space. */ | |
2068 | continue; | |
2069 | } | |
2070 | ||
eea6121a | 2071 | if (s->size == 0) |
a85d7ed0 | 2072 | { |
0451c93c MS |
2073 | /* If we don't need this section, strip it from the |
2074 | output file. This is to handle .rela.bss and | |
2075 | .rela.plt. We must create it in | |
2076 | create_dynamic_sections, because it must be created | |
2077 | before the linker maps input sections to output | |
2078 | sections. The linker does that before | |
2079 | adjust_dynamic_symbol is called, and it is that | |
2080 | function which decides whether anything needs to go | |
2081 | into these sections. */ | |
2082 | ||
8423293d | 2083 | s->flags |= SEC_EXCLUDE; |
a85d7ed0 NC |
2084 | continue; |
2085 | } | |
2086 | ||
c456f082 AM |
2087 | if ((s->flags & SEC_HAS_CONTENTS) == 0) |
2088 | continue; | |
2089 | ||
0451c93c MS |
2090 | /* Allocate memory for the section contents. We use bfd_zalloc |
2091 | here in case unused entries are not reclaimed before the | |
2092 | section's contents are written out. This should not happen, | |
2093 | but this way if it does, we get a R_390_NONE reloc instead | |
2094 | of garbage. */ | |
eea6121a | 2095 | s->contents = (bfd_byte *) bfd_zalloc (dynobj, s->size); |
0451c93c | 2096 | if (s->contents == NULL) |
b34976b6 | 2097 | return FALSE; |
a85d7ed0 | 2098 | } |
ec338859 | 2099 | |
0451c93c | 2100 | if (htab->elf.dynamic_sections_created) |
a85d7ed0 NC |
2101 | { |
2102 | /* Add some entries to the .dynamic section. We fill in the | |
2103 | values later, in elf_s390_finish_dynamic_sections, but we | |
2104 | must add the entries now so that we get the correct size for | |
2105 | the .dynamic section. The DT_DEBUG entry is filled in by the | |
2106 | dynamic linker and used by the debugger. */ | |
dc810e39 | 2107 | #define add_dynamic_entry(TAG, VAL) \ |
5a580b3a | 2108 | _bfd_elf_add_dynamic_entry (info, TAG, VAL) |
ec338859 | 2109 | |
36af4a4e | 2110 | if (info->executable) |
a85d7ed0 | 2111 | { |
dc810e39 | 2112 | if (!add_dynamic_entry (DT_DEBUG, 0)) |
b34976b6 | 2113 | return FALSE; |
a85d7ed0 | 2114 | } |
ec338859 | 2115 | |
eea6121a | 2116 | if (htab->splt->size != 0) |
a85d7ed0 | 2117 | { |
dc810e39 AM |
2118 | if (!add_dynamic_entry (DT_PLTGOT, 0) |
2119 | || !add_dynamic_entry (DT_PLTRELSZ, 0) | |
2120 | || !add_dynamic_entry (DT_PLTREL, DT_RELA) | |
2121 | || !add_dynamic_entry (DT_JMPREL, 0)) | |
b34976b6 | 2122 | return FALSE; |
a85d7ed0 | 2123 | } |
ec338859 | 2124 | |
a85d7ed0 | 2125 | if (relocs) |
26e41594 AM |
2126 | { |
2127 | if (!add_dynamic_entry (DT_RELA, 0) | |
2128 | || !add_dynamic_entry (DT_RELASZ, 0) | |
2129 | || !add_dynamic_entry (DT_RELAENT, sizeof (Elf32_External_Rela))) | |
b34976b6 | 2130 | return FALSE; |
a85d7ed0 | 2131 | |
0451c93c MS |
2132 | /* If any dynamic relocs apply to a read-only section, |
2133 | then we need a DT_TEXTREL entry. */ | |
248866a8 AM |
2134 | if ((info->flags & DF_TEXTREL) == 0) |
2135 | elf_link_hash_traverse (&htab->elf, readonly_dynrelocs, | |
2136 | (PTR) info); | |
ec338859 | 2137 | |
0451c93c MS |
2138 | if ((info->flags & DF_TEXTREL) != 0) |
2139 | { | |
2140 | if (!add_dynamic_entry (DT_TEXTREL, 0)) | |
b34976b6 | 2141 | return FALSE; |
0451c93c | 2142 | } |
a85d7ed0 NC |
2143 | } |
2144 | } | |
dc810e39 | 2145 | #undef add_dynamic_entry |
ec338859 | 2146 | |
b34976b6 | 2147 | return TRUE; |
a85d7ed0 NC |
2148 | } |
2149 | ||
69fc87f1 MS |
2150 | /* Return the base VMA address which should be subtracted from real addresses |
2151 | when resolving @dtpoff relocation. | |
2152 | This is PT_TLS segment p_vaddr. */ | |
2153 | ||
2154 | static bfd_vma | |
2155 | dtpoff_base (info) | |
2156 | struct bfd_link_info *info; | |
2157 | { | |
e1918d23 AM |
2158 | /* If tls_sec is NULL, we should have signalled an error already. */ |
2159 | if (elf_hash_table (info)->tls_sec == NULL) | |
69fc87f1 | 2160 | return 0; |
e1918d23 | 2161 | return elf_hash_table (info)->tls_sec->vma; |
69fc87f1 MS |
2162 | } |
2163 | ||
2164 | /* Return the relocation value for @tpoff relocation | |
2165 | if STT_TLS virtual address is ADDRESS. */ | |
2166 | ||
2167 | static bfd_vma | |
2168 | tpoff (info, address) | |
2169 | struct bfd_link_info *info; | |
2170 | bfd_vma address; | |
2171 | { | |
e1918d23 | 2172 | struct elf_link_hash_table *htab = elf_hash_table (info); |
69fc87f1 | 2173 | |
e1918d23 AM |
2174 | /* If tls_sec is NULL, we should have signalled an error already. */ |
2175 | if (htab->tls_sec == NULL) | |
69fc87f1 | 2176 | return 0; |
e1918d23 | 2177 | return htab->tls_size + htab->tls_sec->vma - address; |
69fc87f1 MS |
2178 | } |
2179 | ||
2180 | /* Complain if TLS instruction relocation is against an invalid | |
2181 | instruction. */ | |
2182 | ||
2183 | static void | |
2184 | invalid_tls_insn (input_bfd, input_section, rel) | |
2185 | bfd *input_bfd; | |
2186 | asection *input_section; | |
2187 | Elf_Internal_Rela *rel; | |
2188 | { | |
2189 | reloc_howto_type *howto; | |
2190 | ||
2191 | howto = elf_howto_table + ELF32_R_TYPE (rel->r_info); | |
2192 | (*_bfd_error_handler) | |
d003868e AM |
2193 | (_("%B(%A+0x%lx): invalid instruction for TLS relocation %s"), |
2194 | input_bfd, | |
2195 | input_section, | |
69fc87f1 MS |
2196 | (long) rel->r_offset, |
2197 | howto->name); | |
77df2968 | 2198 | bfd_set_error (bfd_error_bad_value); |
69fc87f1 MS |
2199 | } |
2200 | ||
a85d7ed0 NC |
2201 | /* Relocate a 390 ELF section. */ |
2202 | ||
b34976b6 | 2203 | static bfd_boolean |
a85d7ed0 NC |
2204 | elf_s390_relocate_section (output_bfd, info, input_bfd, input_section, |
2205 | contents, relocs, local_syms, local_sections) | |
2206 | bfd *output_bfd; | |
2207 | struct bfd_link_info *info; | |
2208 | bfd *input_bfd; | |
2209 | asection *input_section; | |
2210 | bfd_byte *contents; | |
2211 | Elf_Internal_Rela *relocs; | |
2212 | Elf_Internal_Sym *local_syms; | |
2213 | asection **local_sections; | |
2214 | { | |
0451c93c | 2215 | struct elf_s390_link_hash_table *htab; |
a85d7ed0 NC |
2216 | Elf_Internal_Shdr *symtab_hdr; |
2217 | struct elf_link_hash_entry **sym_hashes; | |
2218 | bfd_vma *local_got_offsets; | |
a85d7ed0 NC |
2219 | Elf_Internal_Rela *rel; |
2220 | Elf_Internal_Rela *relend; | |
2221 | ||
0ffa91dd NC |
2222 | BFD_ASSERT (is_s390_elf (input_bfd)); |
2223 | ||
0451c93c | 2224 | htab = elf_s390_hash_table (info); |
0ffa91dd | 2225 | symtab_hdr = &elf_symtab_hdr (input_bfd); |
a85d7ed0 NC |
2226 | sym_hashes = elf_sym_hashes (input_bfd); |
2227 | local_got_offsets = elf_local_got_offsets (input_bfd); | |
2228 | ||
a85d7ed0 NC |
2229 | rel = relocs; |
2230 | relend = relocs + input_section->reloc_count; | |
2231 | for (; rel < relend; rel++) | |
2232 | { | |
5236c819 | 2233 | unsigned int r_type; |
a85d7ed0 NC |
2234 | reloc_howto_type *howto; |
2235 | unsigned long r_symndx; | |
2236 | struct elf_link_hash_entry *h; | |
2237 | Elf_Internal_Sym *sym; | |
2238 | asection *sec; | |
0451c93c | 2239 | bfd_vma off; |
a85d7ed0 | 2240 | bfd_vma relocation; |
b34976b6 | 2241 | bfd_boolean unresolved_reloc; |
a85d7ed0 | 2242 | bfd_reloc_status_type r; |
69fc87f1 | 2243 | int tls_type; |
ec338859 | 2244 | |
a85d7ed0 NC |
2245 | r_type = ELF32_R_TYPE (rel->r_info); |
2246 | if (r_type == (int) R_390_GNU_VTINHERIT | |
26e41594 AM |
2247 | || r_type == (int) R_390_GNU_VTENTRY) |
2248 | continue; | |
5236c819 | 2249 | if (r_type >= (int) R_390_max) |
a85d7ed0 NC |
2250 | { |
2251 | bfd_set_error (bfd_error_bad_value); | |
b34976b6 | 2252 | return FALSE; |
a85d7ed0 | 2253 | } |
ec338859 | 2254 | |
b491616a | 2255 | howto = elf_howto_table + r_type; |
a85d7ed0 | 2256 | r_symndx = ELF32_R_SYM (rel->r_info); |
5236c819 | 2257 | |
a85d7ed0 NC |
2258 | h = NULL; |
2259 | sym = NULL; | |
2260 | sec = NULL; | |
b34976b6 | 2261 | unresolved_reloc = FALSE; |
a85d7ed0 NC |
2262 | if (r_symndx < symtab_hdr->sh_info) |
2263 | { | |
2264 | sym = local_syms + r_symndx; | |
2265 | sec = local_sections[r_symndx]; | |
8517fae7 | 2266 | relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel); |
a85d7ed0 NC |
2267 | } |
2268 | else | |
2269 | { | |
560e09e9 | 2270 | bfd_boolean warned ATTRIBUTE_UNUSED; |
ec338859 | 2271 | |
b2a8e766 AM |
2272 | RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel, |
2273 | r_symndx, symtab_hdr, sym_hashes, | |
2274 | h, sec, relocation, | |
2275 | unresolved_reloc, warned); | |
a85d7ed0 | 2276 | } |
ec338859 | 2277 | |
ab96bf03 | 2278 | if (sec != NULL && elf_discarded_section (sec)) |
e4067dbb DJ |
2279 | RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section, |
2280 | rel, relend, howto, contents); | |
ab96bf03 AM |
2281 | |
2282 | if (info->relocatable) | |
2283 | continue; | |
2284 | ||
a85d7ed0 NC |
2285 | switch (r_type) |
2286 | { | |
5236c819 MS |
2287 | case R_390_GOTPLT12: |
2288 | case R_390_GOTPLT16: | |
bd1ea41b | 2289 | case R_390_GOTPLT20: |
5236c819 MS |
2290 | case R_390_GOTPLT32: |
2291 | case R_390_GOTPLTENT: | |
2292 | /* There are three cases for a GOTPLT relocation. 1) The | |
2293 | relocation is against the jump slot entry of a plt that | |
2294 | will get emitted to the output file. 2) The relocation | |
2295 | is against the jump slot of a plt entry that has been | |
2296 | removed. elf_s390_adjust_gotplt has created a GOT entry | |
2297 | as replacement. 3) The relocation is against a local symbol. | |
2298 | Cases 2) and 3) are the same as the GOT relocation code | |
2299 | so we just have to test for case 1 and fall through for | |
2300 | the other two. */ | |
2301 | if (h != NULL && h->plt.offset != (bfd_vma) -1) | |
2302 | { | |
2303 | bfd_vma plt_index; | |
2304 | ||
2305 | /* Calc. index no. | |
2306 | Current offset - size first entry / entry size. */ | |
2307 | plt_index = (h->plt.offset - PLT_FIRST_ENTRY_SIZE) / | |
2308 | PLT_ENTRY_SIZE; | |
26e41594 | 2309 | |
5236c819 MS |
2310 | /* Offset in GOT is PLT index plus GOT headers(3) times 4, |
2311 | addr & GOT addr. */ | |
2312 | relocation = (plt_index + 3) * GOT_ENTRY_SIZE; | |
2313 | unresolved_reloc = FALSE; | |
2314 | ||
2315 | if (r_type == R_390_GOTPLTENT) | |
2316 | relocation += htab->sgot->output_section->vma; | |
2317 | break; | |
2318 | } | |
2319 | /* Fall through. */ | |
2320 | ||
26e41594 AM |
2321 | case R_390_GOT12: |
2322 | case R_390_GOT16: | |
bd1ea41b | 2323 | case R_390_GOT20: |
26e41594 | 2324 | case R_390_GOT32: |
befc3abb | 2325 | case R_390_GOTENT: |
26e41594 AM |
2326 | /* Relocation is to the entry for this symbol in the global |
2327 | offset table. */ | |
0451c93c MS |
2328 | if (htab->sgot == NULL) |
2329 | abort (); | |
ec338859 | 2330 | |
26e41594 AM |
2331 | if (h != NULL) |
2332 | { | |
b34976b6 | 2333 | bfd_boolean dyn; |
ec338859 | 2334 | |
26e41594 | 2335 | off = h->got.offset; |
0451c93c | 2336 | dyn = htab->elf.dynamic_sections_created; |
4ec72bde | 2337 | if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared, h) |
26e41594 | 2338 | || (info->shared |
8c21ca21 | 2339 | && SYMBOL_REFERENCES_LOCAL (info, h)) |
82058a73 MS |
2340 | || (ELF_ST_VISIBILITY (h->other) |
2341 | && h->root.type == bfd_link_hash_undefweak)) | |
26e41594 AM |
2342 | { |
2343 | /* This is actually a static link, or it is a | |
2344 | -Bsymbolic link and the symbol is defined | |
2345 | locally, or the symbol was forced to be local | |
2346 | because of a version file. We must initialize | |
2347 | this entry in the global offset table. Since the | |
2348 | offset must always be a multiple of 2, we use the | |
2349 | least significant bit to record whether we have | |
2350 | initialized it already. | |
2351 | ||
2352 | When doing a dynamic link, we create a .rel.got | |
2353 | relocation entry to initialize the value. This | |
2354 | is done in the finish_dynamic_symbol routine. */ | |
2355 | if ((off & 1) != 0) | |
2356 | off &= ~1; | |
2357 | else | |
2358 | { | |
a85d7ed0 | 2359 | bfd_put_32 (output_bfd, relocation, |
0451c93c | 2360 | htab->sgot->contents + off); |
26e41594 AM |
2361 | h->got.offset |= 1; |
2362 | } | |
2363 | } | |
0451c93c | 2364 | else |
b34976b6 | 2365 | unresolved_reloc = FALSE; |
26e41594 AM |
2366 | } |
2367 | else | |
2368 | { | |
0451c93c MS |
2369 | if (local_got_offsets == NULL) |
2370 | abort (); | |
a85d7ed0 | 2371 | |
26e41594 | 2372 | off = local_got_offsets[r_symndx]; |
a85d7ed0 | 2373 | |
26e41594 AM |
2374 | /* The offset must always be a multiple of 4. We use |
2375 | the least significant bit to record whether we have | |
2376 | already generated the necessary reloc. */ | |
2377 | if ((off & 1) != 0) | |
2378 | off &= ~1; | |
2379 | else | |
2380 | { | |
2381 | bfd_put_32 (output_bfd, relocation, | |
0451c93c | 2382 | htab->sgot->contents + off); |
a85d7ed0 | 2383 | |
26e41594 AM |
2384 | if (info->shared) |
2385 | { | |
2386 | asection *srelgot; | |
2387 | Elf_Internal_Rela outrel; | |
947216bf | 2388 | bfd_byte *loc; |
a85d7ed0 | 2389 | |
26e41594 | 2390 | srelgot = htab->srelgot; |
0451c93c MS |
2391 | if (srelgot == NULL) |
2392 | abort (); | |
a85d7ed0 | 2393 | |
26e41594 AM |
2394 | outrel.r_offset = (htab->sgot->output_section->vma |
2395 | + htab->sgot->output_offset | |
2396 | + off); | |
2397 | outrel.r_info = ELF32_R_INFO (0, R_390_RELATIVE); | |
a85d7ed0 | 2398 | outrel.r_addend = relocation; |
947216bf AM |
2399 | loc = srelgot->contents; |
2400 | loc += srelgot->reloc_count++ * sizeof (Elf32_External_Rela); | |
26e41594 AM |
2401 | bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc); |
2402 | } | |
a85d7ed0 | 2403 | |
26e41594 AM |
2404 | local_got_offsets[r_symndx] |= 1; |
2405 | } | |
2406 | } | |
a85d7ed0 | 2407 | |
0451c93c MS |
2408 | if (off >= (bfd_vma) -2) |
2409 | abort (); | |
a85d7ed0 | 2410 | |
0451c93c | 2411 | relocation = htab->sgot->output_offset + off; |
befc3abb | 2412 | |
ae9a127f NC |
2413 | /* For @GOTENT the relocation is against the offset between |
2414 | the instruction and the symbols entry in the GOT and not | |
2415 | between the start of the GOT and the symbols entry. We | |
2416 | add the vma of the GOT to get the correct value. */ | |
5236c819 MS |
2417 | if ( r_type == R_390_GOTENT |
2418 | || r_type == R_390_GOTPLTENT) | |
befc3abb MS |
2419 | relocation += htab->sgot->output_section->vma; |
2420 | ||
26e41594 | 2421 | break; |
dc810e39 | 2422 | |
5236c819 | 2423 | case R_390_GOTOFF16: |
26e41594 AM |
2424 | case R_390_GOTOFF32: |
2425 | /* Relocation is relative to the start of the global offset | |
2426 | table. */ | |
2427 | ||
2428 | /* Note that sgot->output_offset is not involved in this | |
2429 | calculation. We always want the start of .got. If we | |
2430 | defined _GLOBAL_OFFSET_TABLE in a different way, as is | |
2431 | permitted by the ABI, we might have to change this | |
2432 | calculation. */ | |
2433 | relocation -= htab->sgot->output_section->vma; | |
2434 | break; | |
2435 | ||
2436 | case R_390_GOTPC: | |
befc3abb | 2437 | case R_390_GOTPCDBL: |
26e41594 AM |
2438 | /* Use global offset table as symbol value. */ |
2439 | relocation = htab->sgot->output_section->vma; | |
b34976b6 | 2440 | unresolved_reloc = FALSE; |
26e41594 | 2441 | break; |
a85d7ed0 | 2442 | |
26e41594 AM |
2443 | case R_390_PLT16DBL: |
2444 | case R_390_PLT32DBL: | |
2445 | case R_390_PLT32: | |
2446 | /* Relocation is to the entry for this symbol in the | |
2447 | procedure linkage table. */ | |
a85d7ed0 | 2448 | |
26e41594 AM |
2449 | /* Resolve a PLT32 reloc against a local symbol directly, |
2450 | without using the procedure linkage table. */ | |
2451 | if (h == NULL) | |
2452 | break; | |
a85d7ed0 | 2453 | |
26e41594 | 2454 | if (h->plt.offset == (bfd_vma) -1 |
0451c93c | 2455 | || htab->splt == NULL) |
26e41594 AM |
2456 | { |
2457 | /* We didn't make a PLT entry for this symbol. This | |
2458 | happens when statically linking PIC code, or when | |
2459 | using -Bsymbolic. */ | |
2460 | break; | |
2461 | } | |
2462 | ||
2463 | relocation = (htab->splt->output_section->vma | |
2464 | + htab->splt->output_offset | |
2465 | + h->plt.offset); | |
b34976b6 | 2466 | unresolved_reloc = FALSE; |
26e41594 | 2467 | break; |
a85d7ed0 | 2468 | |
5236c819 MS |
2469 | case R_390_PLTOFF16: |
2470 | case R_390_PLTOFF32: | |
26e41594 AM |
2471 | /* Relocation is to the entry for this symbol in the |
2472 | procedure linkage table relative to the start of the GOT. */ | |
5236c819 MS |
2473 | |
2474 | /* For local symbols or if we didn't make a PLT entry for | |
2475 | this symbol resolve the symbol directly. */ | |
26e41594 | 2476 | if ( h == NULL |
5236c819 MS |
2477 | || h->plt.offset == (bfd_vma) -1 |
2478 | || htab->splt == NULL) | |
2479 | { | |
2480 | relocation -= htab->sgot->output_section->vma; | |
2481 | break; | |
2482 | } | |
2483 | ||
26e41594 AM |
2484 | relocation = (htab->splt->output_section->vma |
2485 | + htab->splt->output_offset | |
2486 | + h->plt.offset | |
5236c819 MS |
2487 | - htab->sgot->output_section->vma); |
2488 | unresolved_reloc = FALSE; | |
26e41594 AM |
2489 | break; |
2490 | ||
2491 | case R_390_8: | |
2492 | case R_390_16: | |
2493 | case R_390_32: | |
2494 | case R_390_PC16: | |
2495 | case R_390_PC16DBL: | |
2496 | case R_390_PC32DBL: | |
2497 | case R_390_PC32: | |
b1e24c02 | 2498 | if ((input_section->flags & SEC_ALLOC) == 0) |
ec338859 AM |
2499 | break; |
2500 | ||
26e41594 | 2501 | if ((info->shared |
82058a73 MS |
2502 | && (h == NULL |
2503 | || ELF_ST_VISIBILITY (h->other) == STV_DEFAULT | |
2504 | || h->root.type != bfd_link_hash_undefweak) | |
0451c93c MS |
2505 | && ((r_type != R_390_PC16 |
2506 | && r_type != R_390_PC16DBL | |
befc3abb | 2507 | && r_type != R_390_PC32DBL |
0451c93c | 2508 | && r_type != R_390_PC32) |
8c21ca21 | 2509 | || !SYMBOL_CALLS_LOCAL (info, h))) |
64285810 MS |
2510 | || (ELIMINATE_COPY_RELOCS |
2511 | && !info->shared | |
0451c93c MS |
2512 | && h != NULL |
2513 | && h->dynindx != -1 | |
f5385ebf AM |
2514 | && !h->non_got_ref |
2515 | && ((h->def_dynamic | |
2516 | && !h->def_regular) | |
0451c93c MS |
2517 | || h->root.type == bfd_link_hash_undefweak |
2518 | || h->root.type == bfd_link_hash_undefined))) | |
26e41594 AM |
2519 | { |
2520 | Elf_Internal_Rela outrel; | |
2521 | bfd_boolean skip, relocate; | |
0451c93c | 2522 | asection *sreloc; |
947216bf | 2523 | bfd_byte *loc; |
ec338859 | 2524 | |
0451c93c MS |
2525 | /* When generating a shared object, these relocations |
2526 | are copied into the output file to be resolved at run | |
2527 | time. */ | |
ec338859 | 2528 | |
26e41594 AM |
2529 | skip = FALSE; |
2530 | relocate = FALSE; | |
ec338859 | 2531 | |
c629eae0 JJ |
2532 | outrel.r_offset = |
2533 | _bfd_elf_section_offset (output_bfd, info, input_section, | |
2534 | rel->r_offset); | |
2535 | if (outrel.r_offset == (bfd_vma) -1) | |
b34976b6 | 2536 | skip = TRUE; |
0bb2d96a | 2537 | else if (outrel.r_offset == (bfd_vma) -2) |
b34976b6 | 2538 | skip = TRUE, relocate = TRUE; |
26e41594 AM |
2539 | outrel.r_offset += (input_section->output_section->vma |
2540 | + input_section->output_offset); | |
ec338859 | 2541 | |
26e41594 | 2542 | if (skip) |
0bb2d96a | 2543 | memset (&outrel, 0, sizeof outrel); |
26e41594 | 2544 | else if (h != NULL |
0451c93c MS |
2545 | && h->dynindx != -1 |
2546 | && (r_type == R_390_PC16 | |
2547 | || r_type == R_390_PC16DBL | |
befc3abb | 2548 | || r_type == R_390_PC32DBL |
0451c93c MS |
2549 | || r_type == R_390_PC32 |
2550 | || !info->shared | |
8c21ca21 | 2551 | || !SYMBOLIC_BIND (info, h) |
f5385ebf | 2552 | || !h->def_regular)) |
26e41594 AM |
2553 | { |
2554 | outrel.r_info = ELF32_R_INFO (h->dynindx, r_type); | |
27018c3f | 2555 | outrel.r_addend = rel->r_addend; |
26e41594 AM |
2556 | } |
2557 | else | |
2558 | { | |
0451c93c | 2559 | /* This symbol is local, or marked to become local. */ |
90ced0dd | 2560 | outrel.r_addend = relocation + rel->r_addend; |
b5727d75 MS |
2561 | if (r_type == R_390_32) |
2562 | { | |
2563 | relocate = TRUE; | |
2564 | outrel.r_info = ELF32_R_INFO (0, R_390_RELATIVE); | |
b5727d75 MS |
2565 | } |
2566 | else | |
2567 | { | |
2568 | long sindx; | |
2569 | ||
90ced0dd | 2570 | if (bfd_is_abs_section (sec)) |
b5727d75 MS |
2571 | sindx = 0; |
2572 | else if (sec == NULL || sec->owner == NULL) | |
2573 | { | |
2574 | bfd_set_error(bfd_error_bad_value); | |
2575 | return FALSE; | |
2576 | } | |
2577 | else | |
2578 | { | |
2579 | asection *osec; | |
2580 | ||
2581 | osec = sec->output_section; | |
2582 | sindx = elf_section_data (osec)->dynindx; | |
74541ad4 AM |
2583 | if (sindx == 0) |
2584 | { | |
2585 | osec = htab->elf.text_index_section; | |
2586 | sindx = elf_section_data (osec)->dynindx; | |
2587 | } | |
2588 | BFD_ASSERT (sindx != 0); | |
90ced0dd MS |
2589 | |
2590 | /* We are turning this relocation into one | |
2591 | against a section symbol, so subtract out | |
2592 | the output section's address but not the | |
2593 | offset of the input section in the output | |
2594 | section. */ | |
90ced0dd | 2595 | outrel.r_addend -= osec->vma; |
b5727d75 MS |
2596 | } |
2597 | outrel.r_info = ELF32_R_INFO (sindx, r_type); | |
b5727d75 | 2598 | } |
26e41594 | 2599 | } |
ec338859 | 2600 | |
0451c93c MS |
2601 | sreloc = elf_section_data (input_section)->sreloc; |
2602 | if (sreloc == NULL) | |
2603 | abort (); | |
ec338859 | 2604 | |
947216bf AM |
2605 | loc = sreloc->contents; |
2606 | loc += sreloc->reloc_count++ * sizeof (Elf32_External_Rela); | |
0451c93c | 2607 | bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc); |
ec338859 | 2608 | |
26e41594 AM |
2609 | /* If this reloc is against an external symbol, we do |
2610 | not want to fiddle with the addend. Otherwise, we | |
2611 | need to include the symbol value so that it becomes | |
2612 | an addend for the dynamic reloc. */ | |
2613 | if (! relocate) | |
2614 | continue; | |
2615 | } | |
0451c93c | 2616 | break; |
ec338859 | 2617 | |
69fc87f1 MS |
2618 | /* Relocations for tls literal pool entries. */ |
2619 | case R_390_TLS_IE32: | |
2620 | if (info->shared) | |
2621 | { | |
2622 | Elf_Internal_Rela outrel; | |
2623 | asection *sreloc; | |
2624 | bfd_byte *loc; | |
2625 | ||
2626 | outrel.r_offset = rel->r_offset | |
2627 | + input_section->output_section->vma | |
2628 | + input_section->output_offset; | |
2629 | outrel.r_info = ELF32_R_INFO (0, R_390_RELATIVE); | |
2630 | sreloc = elf_section_data (input_section)->sreloc; | |
2631 | if (sreloc == NULL) | |
2632 | abort (); | |
2633 | loc = sreloc->contents; | |
2634 | loc += sreloc->reloc_count++ * sizeof (Elf32_External_Rela); | |
2635 | bfd_elf32_swap_reloc_out (output_bfd, &outrel, loc); | |
2636 | } | |
ae9a127f | 2637 | /* Fall through. */ |
69fc87f1 MS |
2638 | |
2639 | case R_390_TLS_GD32: | |
2640 | case R_390_TLS_GOTIE32: | |
2641 | r_type = elf_s390_tls_transition (info, r_type, h == NULL); | |
2642 | tls_type = GOT_UNKNOWN; | |
2643 | if (h == NULL && local_got_offsets) | |
2644 | tls_type = elf_s390_local_got_tls_type (input_bfd) [r_symndx]; | |
2645 | else if (h != NULL) | |
2646 | { | |
2647 | tls_type = elf_s390_hash_entry(h)->tls_type; | |
2648 | if (!info->shared && h->dynindx == -1 && tls_type >= GOT_TLS_IE) | |
2649 | r_type = R_390_TLS_LE32; | |
2650 | } | |
2651 | if (r_type == R_390_TLS_GD32 && tls_type >= GOT_TLS_IE) | |
2652 | r_type = R_390_TLS_IE32; | |
2653 | ||
2654 | if (r_type == R_390_TLS_LE32) | |
2655 | { | |
2656 | /* This relocation gets optimized away by the local exec | |
2657 | access optimization. */ | |
2658 | BFD_ASSERT (! unresolved_reloc); | |
2659 | bfd_put_32 (output_bfd, -tpoff (info, relocation), | |
2660 | contents + rel->r_offset); | |
2661 | continue; | |
2662 | } | |
2663 | ||
2664 | if (htab->sgot == NULL) | |
2665 | abort (); | |
2666 | ||
2667 | if (h != NULL) | |
2668 | off = h->got.offset; | |
2669 | else | |
2670 | { | |
2671 | if (local_got_offsets == NULL) | |
2672 | abort (); | |
2673 | ||
2674 | off = local_got_offsets[r_symndx]; | |
2675 | } | |
2676 | ||
2677 | emit_tls_relocs: | |
2678 | ||
2679 | if ((off & 1) != 0) | |
2680 | off &= ~1; | |
26e41594 | 2681 | else |
69fc87f1 MS |
2682 | { |
2683 | Elf_Internal_Rela outrel; | |
2684 | bfd_byte *loc; | |
2685 | int dr_type, indx; | |
2686 | ||
2687 | if (htab->srelgot == NULL) | |
2688 | abort (); | |
2689 | ||
2690 | outrel.r_offset = (htab->sgot->output_section->vma | |
2691 | + htab->sgot->output_offset + off); | |
2692 | ||
2693 | indx = h && h->dynindx != -1 ? h->dynindx : 0; | |
2694 | if (r_type == R_390_TLS_GD32) | |
2695 | dr_type = R_390_TLS_DTPMOD; | |
2696 | else | |
2697 | dr_type = R_390_TLS_TPOFF; | |
2698 | if (dr_type == R_390_TLS_TPOFF && indx == 0) | |
2699 | outrel.r_addend = relocation - dtpoff_base (info); | |
2700 | else | |
2701 | outrel.r_addend = 0; | |
2702 | outrel.r_info = ELF32_R_INFO (indx, dr_type); | |
2703 | loc = htab->srelgot->contents; | |
2704 | loc += htab->srelgot->reloc_count++ | |
2705 | * sizeof (Elf32_External_Rela); | |
2706 | bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc); | |
2707 | ||
2708 | if (r_type == R_390_TLS_GD32) | |
2709 | { | |
2710 | if (indx == 0) | |
2711 | { | |
26e41594 | 2712 | BFD_ASSERT (! unresolved_reloc); |
69fc87f1 MS |
2713 | bfd_put_32 (output_bfd, |
2714 | relocation - dtpoff_base (info), | |
2715 | htab->sgot->contents + off + GOT_ENTRY_SIZE); | |
2716 | } | |
2717 | else | |
2718 | { | |
2719 | outrel.r_info = ELF32_R_INFO (indx, R_390_TLS_DTPOFF); | |
2720 | outrel.r_offset += GOT_ENTRY_SIZE; | |
2721 | outrel.r_addend = 0; | |
2722 | htab->srelgot->reloc_count++; | |
2723 | loc += sizeof (Elf32_External_Rela); | |
2724 | bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc); | |
2725 | } | |
2726 | } | |
2727 | ||
2728 | if (h != NULL) | |
2729 | h->got.offset |= 1; | |
2730 | else | |
2731 | local_got_offsets[r_symndx] |= 1; | |
2732 | } | |
2733 | ||
2734 | if (off >= (bfd_vma) -2) | |
2735 | abort (); | |
2736 | if (r_type == ELF32_R_TYPE (rel->r_info)) | |
2737 | { | |
2738 | relocation = htab->sgot->output_offset + off; | |
2739 | if (r_type == R_390_TLS_IE32 || r_type == R_390_TLS_IEENT) | |
2740 | relocation += htab->sgot->output_section->vma; | |
2741 | unresolved_reloc = FALSE; | |
2742 | } | |
2743 | else | |
2744 | { | |
2745 | bfd_put_32 (output_bfd, htab->sgot->output_offset + off, | |
2746 | contents + rel->r_offset); | |
2747 | continue; | |
2748 | } | |
2749 | break; | |
2750 | ||
2751 | case R_390_TLS_GOTIE12: | |
bd1ea41b | 2752 | case R_390_TLS_GOTIE20: |
69fc87f1 MS |
2753 | case R_390_TLS_IEENT: |
2754 | if (h == NULL) | |
2755 | { | |
2756 | if (local_got_offsets == NULL) | |
2757 | abort(); | |
2758 | off = local_got_offsets[r_symndx]; | |
2759 | if (info->shared) | |
2760 | goto emit_tls_relocs; | |
2761 | } | |
2762 | else | |
2763 | { | |
2764 | off = h->got.offset; | |
2765 | tls_type = elf_s390_hash_entry(h)->tls_type; | |
2766 | if (info->shared || h->dynindx != -1 || tls_type < GOT_TLS_IE) | |
2767 | goto emit_tls_relocs; | |
2768 | } | |
2769 | ||
2770 | if (htab->sgot == NULL) | |
2771 | abort (); | |
2772 | ||
2773 | BFD_ASSERT (! unresolved_reloc); | |
2774 | bfd_put_32 (output_bfd, -tpoff (info, relocation), | |
2775 | htab->sgot->contents + off); | |
2776 | relocation = htab->sgot->output_offset + off; | |
2777 | if (r_type == R_390_TLS_IEENT) | |
2778 | relocation += htab->sgot->output_section->vma; | |
2779 | unresolved_reloc = FALSE; | |
2780 | break; | |
2781 | ||
2782 | case R_390_TLS_LDM32: | |
2783 | if (! info->shared) | |
2784 | /* The literal pool entry this relocation refers to gets ignored | |
2785 | by the optimized code of the local exec model. Do nothing | |
2786 | and the value will turn out zero. */ | |
2787 | continue; | |
2788 | ||
2789 | if (htab->sgot == NULL) | |
2790 | abort (); | |
2791 | ||
2792 | off = htab->tls_ldm_got.offset; | |
2793 | if (off & 1) | |
2794 | off &= ~1; | |
2795 | else | |
2796 | { | |
2797 | Elf_Internal_Rela outrel; | |
2798 | bfd_byte *loc; | |
2799 | ||
2800 | if (htab->srelgot == NULL) | |
2801 | abort (); | |
2802 | ||
2803 | outrel.r_offset = (htab->sgot->output_section->vma | |
2804 | + htab->sgot->output_offset + off); | |
2805 | ||
2806 | bfd_put_32 (output_bfd, 0, | |
2807 | htab->sgot->contents + off + GOT_ENTRY_SIZE); | |
2808 | outrel.r_info = ELF32_R_INFO (0, R_390_TLS_DTPMOD); | |
2809 | outrel.r_addend = 0; | |
2810 | loc = htab->srelgot->contents; | |
2811 | loc += htab->srelgot->reloc_count++ | |
2812 | * sizeof (Elf32_External_Rela); | |
2813 | bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc); | |
2814 | htab->tls_ldm_got.offset |= 1; | |
2815 | } | |
2816 | relocation = htab->sgot->output_offset + off; | |
26e41594 | 2817 | unresolved_reloc = FALSE; |
69fc87f1 MS |
2818 | break; |
2819 | ||
2820 | case R_390_TLS_LE32: | |
2821 | if (info->shared) | |
2822 | { | |
2823 | /* Linking a shared library with non-fpic code requires | |
2824 | a R_390_TLS_TPOFF relocation. */ | |
2825 | Elf_Internal_Rela outrel; | |
2826 | asection *sreloc; | |
2827 | bfd_byte *loc; | |
2828 | int indx; | |
2829 | ||
2830 | outrel.r_offset = rel->r_offset | |
2831 | + input_section->output_section->vma | |
2832 | + input_section->output_offset; | |
2833 | if (h != NULL && h->dynindx != -1) | |
2834 | indx = h->dynindx; | |
2835 | else | |
2836 | indx = 0; | |
2837 | outrel.r_info = ELF32_R_INFO (indx, R_390_TLS_TPOFF); | |
2838 | if (indx == 0) | |
2839 | outrel.r_addend = relocation - dtpoff_base (info); | |
2840 | else | |
2841 | outrel.r_addend = 0; | |
2842 | sreloc = elf_section_data (input_section)->sreloc; | |
2843 | if (sreloc == NULL) | |
2844 | abort (); | |
2845 | loc = sreloc->contents; | |
2846 | loc += sreloc->reloc_count++ * sizeof (Elf32_External_Rela); | |
2847 | bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc); | |
2848 | } | |
2849 | else | |
2850 | { | |
2851 | BFD_ASSERT (! unresolved_reloc); | |
2852 | bfd_put_32 (output_bfd, -tpoff (info, relocation), | |
2853 | contents + rel->r_offset); | |
2854 | } | |
2855 | continue; | |
2856 | ||
2857 | case R_390_TLS_LDO32: | |
de8bee76 | 2858 | if (info->shared || (input_section->flags & SEC_DEBUGGING)) |
69fc87f1 MS |
2859 | relocation -= dtpoff_base (info); |
2860 | else | |
2861 | /* When converting LDO to LE, we must negate. */ | |
2862 | relocation = -tpoff (info, relocation); | |
2863 | break; | |
2864 | ||
2865 | /* Relocations for tls instructions. */ | |
2866 | case R_390_TLS_LOAD: | |
2867 | case R_390_TLS_GDCALL: | |
2868 | case R_390_TLS_LDCALL: | |
2869 | tls_type = GOT_UNKNOWN; | |
2870 | if (h == NULL && local_got_offsets) | |
2871 | tls_type = elf_s390_local_got_tls_type (input_bfd) [r_symndx]; | |
2872 | else if (h != NULL) | |
2873 | tls_type = elf_s390_hash_entry(h)->tls_type; | |
2874 | ||
2875 | if (tls_type == GOT_TLS_GD) | |
2876 | continue; | |
2877 | ||
2878 | if (r_type == R_390_TLS_LOAD) | |
2879 | { | |
2880 | if (!info->shared && (h == NULL || h->dynindx == -1)) | |
2881 | { | |
2882 | /* IE->LE transition. Four valid cases: | |
2883 | l %rx,0(0,%ry) -> lr %rx,%ry + bcr 0,0 | |
2884 | l %rx,0(%ry,0) -> lr %rx,%ry + bcr 0,0 | |
2885 | l %rx,0(%ry,%r12) -> lr %rx,%ry + bcr 0,0 | |
2886 | l %rx,0(%r12,%ry) -> lr %rx,%ry + bcr 0,0 */ | |
2887 | unsigned int insn, ry; | |
2888 | ||
2889 | insn = bfd_get_32 (input_bfd, contents + rel->r_offset); | |
2890 | ry = 0; | |
2891 | if ((insn & 0xff00f000) == 0x58000000) | |
2892 | /* l %rx,0(%ry,0) -> lr %rx,%ry + bcr 0,0 */ | |
2893 | ry = (insn & 0x000f0000); | |
2894 | else if ((insn & 0xff0f0000) == 0x58000000) | |
2895 | /* l %rx,0(0,%ry) -> lr %rx,%ry + bcr 0,0 */ | |
2896 | ry = (insn & 0x0000f000) << 4; | |
2897 | else if ((insn & 0xff00f000) == 0x5800c000) | |
2898 | /* l %rx,0(%ry,%r12) -> lr %rx,%ry + bcr 0,0 */ | |
2899 | ry = (insn & 0x000f0000); | |
2900 | else if ((insn & 0xff0f0000) == 0x580c0000) | |
2901 | /* l %rx,0(%r12,%ry) -> lr %rx,%ry + bcr 0,0 */ | |
2902 | ry = (insn & 0x0000f000) << 4; | |
2903 | else | |
2904 | invalid_tls_insn (input_bfd, input_section, rel); | |
2905 | insn = 0x18000700 | (insn & 0x00f00000) | ry; | |
2906 | bfd_put_32 (output_bfd, insn, contents + rel->r_offset); | |
2907 | } | |
2908 | } | |
2909 | else if (r_type == R_390_TLS_GDCALL) | |
2910 | { | |
2911 | unsigned int insn; | |
2912 | ||
2913 | insn = bfd_get_32 (input_bfd, contents + rel->r_offset); | |
77df2968 | 2914 | if ((insn & 0xff000fff) != 0x4d000000 && |
d0ddfe27 AK |
2915 | (insn & 0xffff0000) != 0xc0e50000 && |
2916 | (insn & 0xff000000) != 0x0d000000) | |
69fc87f1 MS |
2917 | invalid_tls_insn (input_bfd, input_section, rel); |
2918 | if (!info->shared && (h == NULL || h->dynindx == -1)) | |
77df2968 | 2919 | { |
d0ddfe27 AK |
2920 | if ((insn & 0xff000000) == 0x0d000000) |
2921 | { | |
2922 | /* GD->LE transition. | |
2923 | basr rx, ry -> nopr r7 */ | |
2924 | insn = 0x07070000 | (insn & 0xffff); | |
2925 | } | |
2926 | else if ((insn & 0xff000000) == 0x4d000000) | |
77df2968 MS |
2927 | { |
2928 | /* GD->LE transition. | |
2929 | bas %r14,0(%rx,%r13) -> bc 0,0 */ | |
2930 | insn = 0x47000000; | |
2931 | } | |
2932 | else | |
2933 | { | |
2934 | /* GD->LE transition. | |
d0ddfe27 | 2935 | brasl %r14,_tls_get_offset@plt -> brcl 0,. */ |
77df2968 MS |
2936 | insn = 0xc0040000; |
2937 | bfd_put_16 (output_bfd, 0x0000, | |
2938 | contents + rel->r_offset + 4); | |
2939 | } | |
2940 | } | |
69fc87f1 | 2941 | else |
77df2968 | 2942 | { |
d0ddfe27 AK |
2943 | /* If basr is used in the pic case to invoke |
2944 | _tls_get_offset, something went wrong before. */ | |
2945 | if ((insn & 0xff000000) == 0x0d000000) | |
2946 | invalid_tls_insn (input_bfd, input_section, rel); | |
2947 | ||
77df2968 MS |
2948 | if ((insn & 0xff000000) == 0x4d000000) |
2949 | { | |
2950 | /* GD->IE transition. | |
2951 | bas %r14,0(%rx,%r13) -> l %r2,0(%r2,%r12) */ | |
2952 | insn = 0x5822c000; | |
2953 | } | |
2954 | else | |
2955 | { | |
2956 | /* GD->IE transition. | |
2957 | brasl %r14,__tls_get_addr@plt -> | |
2958 | l %r2,0(%r2,%r12) ; bcr 0,0 */ | |
2959 | insn = 0x5822c000; | |
2960 | bfd_put_16 (output_bfd, 0x0700, | |
2961 | contents + rel->r_offset + 4); | |
2962 | } | |
2963 | } | |
69fc87f1 MS |
2964 | bfd_put_32 (output_bfd, insn, contents + rel->r_offset); |
2965 | } | |
2966 | else if (r_type == R_390_TLS_LDCALL) | |
2967 | { | |
2968 | if (!info->shared) | |
2969 | { | |
2970 | unsigned int insn; | |
2971 | ||
2972 | insn = bfd_get_32 (input_bfd, contents + rel->r_offset); | |
77df2968 | 2973 | if ((insn & 0xff000fff) != 0x4d000000 && |
d0ddfe27 AK |
2974 | (insn & 0xffff0000) != 0xc0e50000 && |
2975 | (insn & 0xff000000) != 0x0d000000) | |
69fc87f1 | 2976 | invalid_tls_insn (input_bfd, input_section, rel); |
d0ddfe27 AK |
2977 | |
2978 | if ((insn & 0xff000000) == 0x0d000000) | |
2979 | { | |
2980 | /* LD->LE transition. | |
2981 | basr rx, ry -> nopr r7 */ | |
2982 | insn = 0x07070000 | (insn & 0xffff); | |
2983 | } | |
2984 | else if ((insn & 0xff000000) == 0x4d000000) | |
77df2968 MS |
2985 | { |
2986 | /* LD->LE transition. | |
2987 | bas %r14,0(%rx,%r13) -> bc 0,0 */ | |
2988 | insn = 0x47000000; | |
2989 | } | |
2990 | else | |
2991 | { | |
2992 | /* LD->LE transition. | |
d0ddfe27 | 2993 | brasl %r14,__tls_get_offset@plt -> brcl 0,. */ |
77df2968 MS |
2994 | insn = 0xc0040000; |
2995 | bfd_put_16 (output_bfd, 0x0000, | |
2996 | contents + rel->r_offset + 4); | |
2997 | } | |
69fc87f1 MS |
2998 | bfd_put_32 (output_bfd, insn, contents + rel->r_offset); |
2999 | } | |
3000 | } | |
3001 | continue; | |
3002 | ||
0451c93c MS |
3003 | default: |
3004 | break; | |
3005 | } | |
ec338859 | 3006 | |
239e1f3a AM |
3007 | /* Dynamic relocs are not propagated for SEC_DEBUGGING sections |
3008 | because such sections are not SEC_ALLOC and thus ld.so will | |
3009 | not process them. */ | |
0451c93c | 3010 | if (unresolved_reloc |
239e1f3a | 3011 | && !((input_section->flags & SEC_DEBUGGING) != 0 |
1d5316ab AM |
3012 | && h->def_dynamic) |
3013 | && _bfd_elf_section_offset (output_bfd, info, input_section, | |
3014 | rel->r_offset) != (bfd_vma) -1) | |
0451c93c | 3015 | (*_bfd_error_handler) |
843fe662 | 3016 | (_("%B(%A+0x%lx): unresolvable %s relocation against symbol `%s'"), |
d003868e AM |
3017 | input_bfd, |
3018 | input_section, | |
0451c93c | 3019 | (long) rel->r_offset, |
843fe662 | 3020 | howto->name, |
0451c93c | 3021 | h->root.root.string); |
ec338859 | 3022 | |
bd1ea41b MS |
3023 | if (r_type == R_390_20 |
3024 | || r_type == R_390_GOT20 | |
3025 | || r_type == R_390_GOTPLT20 | |
3026 | || r_type == R_390_TLS_GOTIE20) | |
3027 | { | |
3028 | relocation += rel->r_addend; | |
3029 | relocation = (relocation&0xfff) << 8 | (relocation&0xff000) >> 12; | |
3030 | r = _bfd_final_link_relocate (howto, input_bfd, input_section, | |
3031 | contents, rel->r_offset, | |
3032 | relocation, 0); | |
3033 | } | |
3034 | else | |
3035 | r = _bfd_final_link_relocate (howto, input_bfd, input_section, | |
3036 | contents, rel->r_offset, | |
3037 | relocation, rel->r_addend); | |
ec338859 | 3038 | |
a85d7ed0 NC |
3039 | if (r != bfd_reloc_ok) |
3040 | { | |
0451c93c | 3041 | const char *name; |
ec338859 | 3042 | |
0451c93c MS |
3043 | if (h != NULL) |
3044 | name = h->root.root.string; | |
3045 | else | |
a85d7ed0 | 3046 | { |
0451c93c MS |
3047 | name = bfd_elf_string_from_elf_section (input_bfd, |
3048 | symtab_hdr->sh_link, | |
3049 | sym->st_name); | |
3050 | if (name == NULL) | |
b34976b6 | 3051 | return FALSE; |
0451c93c MS |
3052 | if (*name == '\0') |
3053 | name = bfd_section_name (input_bfd, sec); | |
3054 | } | |
ec338859 | 3055 | |
0451c93c MS |
3056 | if (r == bfd_reloc_overflow) |
3057 | { | |
ec338859 | 3058 | |
0451c93c | 3059 | if (! ((*info->callbacks->reloc_overflow) |
dfeffb9f L |
3060 | (info, (h ? &h->root : NULL), name, howto->name, |
3061 | (bfd_vma) 0, input_bfd, input_section, | |
3062 | rel->r_offset))) | |
b34976b6 | 3063 | return FALSE; |
0451c93c MS |
3064 | } |
3065 | else | |
3066 | { | |
3067 | (*_bfd_error_handler) | |
d003868e AM |
3068 | (_("%B(%A+0x%lx): reloc against `%s': error %d"), |
3069 | input_bfd, input_section, | |
0451c93c | 3070 | (long) rel->r_offset, name, (int) r); |
b34976b6 | 3071 | return FALSE; |
a85d7ed0 NC |
3072 | } |
3073 | } | |
3074 | } | |
ec338859 | 3075 | |
b34976b6 | 3076 | return TRUE; |
a85d7ed0 NC |
3077 | } |
3078 | ||
3079 | /* Finish up dynamic symbol handling. We set the contents of various | |
3080 | dynamic sections here. */ | |
3081 | ||
b34976b6 | 3082 | static bfd_boolean |
a85d7ed0 NC |
3083 | elf_s390_finish_dynamic_symbol (output_bfd, info, h, sym) |
3084 | bfd *output_bfd; | |
3085 | struct bfd_link_info *info; | |
3086 | struct elf_link_hash_entry *h; | |
3087 | Elf_Internal_Sym *sym; | |
3088 | { | |
0451c93c | 3089 | struct elf_s390_link_hash_table *htab; |
ec338859 | 3090 | |
0451c93c | 3091 | htab = elf_s390_hash_table (info); |
ec338859 | 3092 | |
a85d7ed0 NC |
3093 | if (h->plt.offset != (bfd_vma) -1) |
3094 | { | |
0451c93c MS |
3095 | bfd_vma plt_index; |
3096 | bfd_vma got_offset; | |
a85d7ed0 | 3097 | Elf_Internal_Rela rela; |
947216bf | 3098 | bfd_byte *loc; |
a85d7ed0 | 3099 | bfd_vma relative_offset; |
ec338859 | 3100 | |
a85d7ed0 | 3101 | /* This symbol has an entry in the procedure linkage table. Set |
26e41594 | 3102 | it up. */ |
0451c93c MS |
3103 | if (h->dynindx == -1 |
3104 | || htab->splt == NULL | |
3105 | || htab->sgotplt == NULL | |
3106 | || htab->srelplt == NULL) | |
3107 | abort (); | |
a85d7ed0 | 3108 | |
dc810e39 | 3109 | /* Calc. index no. |
26e41594 | 3110 | Current offset - size first entry / entry size. */ |
a85d7ed0 NC |
3111 | plt_index = (h->plt.offset - PLT_FIRST_ENTRY_SIZE) / PLT_ENTRY_SIZE; |
3112 | ||
3113 | /* Offset in GOT is PLT index plus GOT headers(3) times 4, | |
26e41594 | 3114 | addr & GOT addr. */ |
a85d7ed0 NC |
3115 | got_offset = (plt_index + 3) * GOT_ENTRY_SIZE; |
3116 | ||
3117 | /* S390 uses halfwords for relative branch calc! */ | |
dc810e39 | 3118 | relative_offset = - ((PLT_FIRST_ENTRY_SIZE + |
26e41594 | 3119 | (PLT_ENTRY_SIZE * plt_index) + 18) / 2); |
a85d7ed0 | 3120 | /* If offset is > 32768, branch to a previous branch |
26e41594 | 3121 | 390 can only handle +-64 K jumps. */ |
dc810e39 | 3122 | if ( -32768 > (int) relative_offset ) |
26e41594 AM |
3123 | relative_offset |
3124 | = -(unsigned) (((65536 / PLT_ENTRY_SIZE - 1) * PLT_ENTRY_SIZE) / 2); | |
a85d7ed0 NC |
3125 | |
3126 | /* Fill in the entry in the procedure linkage table. */ | |
3127 | if (!info->shared) | |
0451c93c | 3128 | { |
26e41594 | 3129 | bfd_put_32 (output_bfd, (bfd_vma) PLT_ENTRY_WORD0, |
0451c93c MS |
3130 | htab->splt->contents + h->plt.offset); |
3131 | bfd_put_32 (output_bfd, (bfd_vma) PLT_ENTRY_WORD1, | |
3132 | htab->splt->contents + h->plt.offset + 4); | |
3133 | bfd_put_32 (output_bfd, (bfd_vma) PLT_ENTRY_WORD2, | |
3134 | htab->splt->contents + h->plt.offset + 8); | |
3135 | bfd_put_32 (output_bfd, (bfd_vma) PLT_ENTRY_WORD3, | |
3136 | htab->splt->contents + h->plt.offset + 12); | |
3137 | bfd_put_32 (output_bfd, (bfd_vma) PLT_ENTRY_WORD4, | |
3138 | htab->splt->contents + h->plt.offset + 16); | |
3139 | bfd_put_32 (output_bfd, (bfd_vma) 0+(relative_offset << 16), | |
3140 | htab->splt->contents + h->plt.offset + 20); | |
3141 | bfd_put_32 (output_bfd, | |
3142 | (htab->sgotplt->output_section->vma | |
3143 | + htab->sgotplt->output_offset | |
3144 | + got_offset), | |
3145 | htab->splt->contents + h->plt.offset + 24); | |
3146 | } | |
a85d7ed0 | 3147 | else if (got_offset < 4096) |
0451c93c MS |
3148 | { |
3149 | bfd_put_32 (output_bfd, (bfd_vma) PLT_PIC12_ENTRY_WORD0 + got_offset, | |
3150 | htab->splt->contents + h->plt.offset); | |
3151 | bfd_put_32 (output_bfd, (bfd_vma) PLT_PIC12_ENTRY_WORD1, | |
3152 | htab->splt->contents + h->plt.offset + 4); | |
3153 | bfd_put_32 (output_bfd, (bfd_vma) PLT_PIC12_ENTRY_WORD2, | |
3154 | htab->splt->contents + h->plt.offset + 8); | |
3155 | bfd_put_32 (output_bfd, (bfd_vma) PLT_PIC12_ENTRY_WORD3, | |
3156 | htab->splt->contents + h->plt.offset + 12); | |
3157 | bfd_put_32 (output_bfd, (bfd_vma) PLT_PIC12_ENTRY_WORD4, | |
3158 | htab->splt->contents + h->plt.offset + 16); | |
3159 | bfd_put_32 (output_bfd, (bfd_vma) 0+(relative_offset << 16), | |
3160 | htab->splt->contents + h->plt.offset + 20); | |
3161 | bfd_put_32 (output_bfd, (bfd_vma) 0, | |
3162 | htab->splt->contents + h->plt.offset + 24); | |
3163 | } | |
a85d7ed0 | 3164 | else if (got_offset < 32768) |
0451c93c MS |
3165 | { |
3166 | bfd_put_32 (output_bfd, (bfd_vma) PLT_PIC16_ENTRY_WORD0 + got_offset, | |
3167 | htab->splt->contents + h->plt.offset); | |
3168 | bfd_put_32 (output_bfd, (bfd_vma) PLT_PIC16_ENTRY_WORD1, | |
3169 | htab->splt->contents + h->plt.offset + 4); | |
3170 | bfd_put_32 (output_bfd, (bfd_vma) PLT_PIC16_ENTRY_WORD2, | |
3171 | htab->splt->contents + h->plt.offset + 8); | |
3172 | bfd_put_32 (output_bfd, (bfd_vma) PLT_PIC16_ENTRY_WORD3, | |
3173 | htab->splt->contents + h->plt.offset + 12); | |
3174 | bfd_put_32 (output_bfd, (bfd_vma) PLT_PIC16_ENTRY_WORD4, | |
3175 | htab->splt->contents + h->plt.offset + 16); | |
3176 | bfd_put_32 (output_bfd, (bfd_vma) 0+(relative_offset << 16), | |
3177 | htab->splt->contents + h->plt.offset + 20); | |
3178 | bfd_put_32 (output_bfd, (bfd_vma) 0, | |
3179 | htab->splt->contents + h->plt.offset + 24); | |
3180 | } | |
a85d7ed0 | 3181 | else |
0451c93c MS |
3182 | { |
3183 | bfd_put_32 (output_bfd, (bfd_vma) PLT_PIC_ENTRY_WORD0, | |
3184 | htab->splt->contents + h->plt.offset); | |
3185 | bfd_put_32 (output_bfd, (bfd_vma) PLT_PIC_ENTRY_WORD1, | |
3186 | htab->splt->contents + h->plt.offset + 4); | |
3187 | bfd_put_32 (output_bfd, (bfd_vma) PLT_PIC_ENTRY_WORD2, | |
3188 | htab->splt->contents + h->plt.offset + 8); | |
3189 | bfd_put_32 (output_bfd, (bfd_vma) PLT_PIC_ENTRY_WORD3, | |
3190 | htab->splt->contents + h->plt.offset + 12); | |
3191 | bfd_put_32 (output_bfd, (bfd_vma) PLT_PIC_ENTRY_WORD4, | |
3192 | htab->splt->contents + h->plt.offset + 16); | |
3193 | bfd_put_32 (output_bfd, (bfd_vma) 0+(relative_offset << 16), | |
3194 | htab->splt->contents + h->plt.offset + 20); | |
3195 | bfd_put_32 (output_bfd, got_offset, | |
3196 | htab->splt->contents + h->plt.offset + 24); | |
3197 | } | |
a85d7ed0 NC |
3198 | /* Insert offset into reloc. table here. */ |
3199 | bfd_put_32 (output_bfd, plt_index * sizeof (Elf32_External_Rela), | |
26e41594 | 3200 | htab->splt->contents + h->plt.offset + 28); |
a85d7ed0 NC |
3201 | |
3202 | /* Fill in the entry in the global offset table. | |
26e41594 | 3203 | Points to instruction after GOT offset. */ |
a85d7ed0 | 3204 | bfd_put_32 (output_bfd, |
0451c93c MS |
3205 | (htab->splt->output_section->vma |
3206 | + htab->splt->output_offset | |
a85d7ed0 NC |
3207 | + h->plt.offset |
3208 | + 12), | |
0451c93c | 3209 | htab->sgotplt->contents + got_offset); |
a85d7ed0 | 3210 | |
0451c93c MS |
3211 | /* Fill in the entry in the .rela.plt section. */ |
3212 | rela.r_offset = (htab->sgotplt->output_section->vma | |
3213 | + htab->sgotplt->output_offset | |
3214 | + got_offset); | |
3215 | rela.r_info = ELF32_R_INFO (h->dynindx, R_390_JMP_SLOT); | |
3216 | rela.r_addend = 0; | |
947216bf | 3217 | loc = htab->srelplt->contents + plt_index * sizeof (Elf32_External_Rela); |
0451c93c | 3218 | bfd_elf32_swap_reloca_out (output_bfd, &rela, loc); |
ec338859 | 3219 | |
f5385ebf | 3220 | if (!h->def_regular) |
a85d7ed0 NC |
3221 | { |
3222 | /* Mark the symbol as undefined, rather than as defined in | |
0451c93c MS |
3223 | the .plt section. Leave the value alone. This is a clue |
3224 | for the dynamic linker, to make function pointer | |
3225 | comparisons work between an application and shared | |
ec338859 | 3226 | library. */ |
a85d7ed0 NC |
3227 | sym->st_shndx = SHN_UNDEF; |
3228 | } | |
3229 | } | |
ec338859 | 3230 | |
69fc87f1 MS |
3231 | if (h->got.offset != (bfd_vma) -1 |
3232 | && elf_s390_hash_entry(h)->tls_type != GOT_TLS_GD | |
3233 | && elf_s390_hash_entry(h)->tls_type != GOT_TLS_IE | |
3234 | && elf_s390_hash_entry(h)->tls_type != GOT_TLS_IE_NLT) | |
a85d7ed0 | 3235 | { |
a85d7ed0 | 3236 | Elf_Internal_Rela rela; |
947216bf | 3237 | bfd_byte *loc; |
a85d7ed0 NC |
3238 | |
3239 | /* This symbol has an entry in the global offset table. Set it | |
26e41594 | 3240 | up. */ |
a85d7ed0 | 3241 | |
0451c93c MS |
3242 | if (htab->sgot == NULL || htab->srelgot == NULL) |
3243 | abort (); | |
a85d7ed0 | 3244 | |
0451c93c MS |
3245 | rela.r_offset = (htab->sgot->output_section->vma |
3246 | + htab->sgot->output_offset | |
dc810e39 | 3247 | + (h->got.offset &~ (bfd_vma) 1)); |
a85d7ed0 NC |
3248 | |
3249 | /* If this is a static link, or it is a -Bsymbolic link and the | |
3250 | symbol is defined locally or was forced to be local because | |
3251 | of a version file, we just want to emit a RELATIVE reloc. | |
3252 | The entry in the global offset table will already have been | |
3253 | initialized in the relocate_section function. */ | |
0451c93c | 3254 | if (info->shared |
8c21ca21 | 3255 | && SYMBOL_REFERENCES_LOCAL (info, h)) |
0451c93c | 3256 | { |
8c21ca21 AK |
3257 | if (!h->def_regular) |
3258 | return FALSE; | |
0451c93c MS |
3259 | BFD_ASSERT((h->got.offset & 1) != 0); |
3260 | rela.r_info = ELF32_R_INFO (0, R_390_RELATIVE); | |
3261 | rela.r_addend = (h->root.u.def.value | |
26e41594 AM |
3262 | + h->root.u.def.section->output_section->vma |
3263 | + h->root.u.def.section->output_offset); | |
3264 | } | |
a85d7ed0 NC |
3265 | else |
3266 | { | |
3267 | BFD_ASSERT((h->got.offset & 1) == 0); | |
0451c93c | 3268 | bfd_put_32 (output_bfd, (bfd_vma) 0, htab->sgot->contents + h->got.offset); |
a85d7ed0 | 3269 | rela.r_info = ELF32_R_INFO (h->dynindx, R_390_GLOB_DAT); |
26e41594 AM |
3270 | rela.r_addend = 0; |
3271 | } | |
a85d7ed0 | 3272 | |
947216bf AM |
3273 | loc = htab->srelgot->contents; |
3274 | loc += htab->srelgot->reloc_count++ * sizeof (Elf32_External_Rela); | |
0451c93c | 3275 | bfd_elf32_swap_reloca_out (output_bfd, &rela, loc); |
a85d7ed0 NC |
3276 | } |
3277 | ||
f5385ebf | 3278 | if (h->needs_copy) |
a85d7ed0 | 3279 | { |
a85d7ed0 | 3280 | Elf_Internal_Rela rela; |
947216bf | 3281 | bfd_byte *loc; |
a85d7ed0 NC |
3282 | |
3283 | /* This symbols needs a copy reloc. Set it up. */ | |
3284 | ||
0451c93c MS |
3285 | if (h->dynindx == -1 |
3286 | || (h->root.type != bfd_link_hash_defined | |
3287 | && h->root.type != bfd_link_hash_defweak) | |
3288 | || htab->srelbss == NULL) | |
3289 | abort (); | |
a85d7ed0 NC |
3290 | |
3291 | rela.r_offset = (h->root.u.def.value | |
3292 | + h->root.u.def.section->output_section->vma | |
3293 | + h->root.u.def.section->output_offset); | |
3294 | rela.r_info = ELF32_R_INFO (h->dynindx, R_390_COPY); | |
3295 | rela.r_addend = 0; | |
947216bf AM |
3296 | loc = htab->srelbss->contents; |
3297 | loc += htab->srelbss->reloc_count++ * sizeof (Elf32_External_Rela); | |
0451c93c | 3298 | bfd_elf32_swap_reloca_out (output_bfd, &rela, loc); |
a85d7ed0 NC |
3299 | } |
3300 | ||
3301 | /* Mark some specially defined symbols as absolute. */ | |
3302 | if (strcmp (h->root.root.string, "_DYNAMIC") == 0 | |
22edb2f1 RS |
3303 | || h == htab->elf.hgot |
3304 | || h == htab->elf.hplt) | |
a85d7ed0 NC |
3305 | sym->st_shndx = SHN_ABS; |
3306 | ||
b34976b6 | 3307 | return TRUE; |
a85d7ed0 NC |
3308 | } |
3309 | ||
0451c93c MS |
3310 | /* Used to decide how to sort relocs in an optimal manner for the |
3311 | dynamic linker, before writing them out. */ | |
3312 | ||
3313 | static enum elf_reloc_type_class | |
3314 | elf_s390_reloc_type_class (rela) | |
3315 | const Elf_Internal_Rela *rela; | |
3316 | { | |
3317 | switch ((int) ELF32_R_TYPE (rela->r_info)) | |
3318 | { | |
3319 | case R_390_RELATIVE: | |
3320 | return reloc_class_relative; | |
3321 | case R_390_JMP_SLOT: | |
3322 | return reloc_class_plt; | |
3323 | case R_390_COPY: | |
3324 | return reloc_class_copy; | |
3325 | default: | |
3326 | return reloc_class_normal; | |
3327 | } | |
3328 | } | |
3329 | ||
a85d7ed0 NC |
3330 | /* Finish up the dynamic sections. */ |
3331 | ||
b34976b6 | 3332 | static bfd_boolean |
a85d7ed0 NC |
3333 | elf_s390_finish_dynamic_sections (output_bfd, info) |
3334 | bfd *output_bfd; | |
3335 | struct bfd_link_info *info; | |
3336 | { | |
0451c93c | 3337 | struct elf_s390_link_hash_table *htab; |
a85d7ed0 NC |
3338 | bfd *dynobj; |
3339 | asection *sdyn; | |
a85d7ed0 | 3340 | |
0451c93c MS |
3341 | htab = elf_s390_hash_table (info); |
3342 | dynobj = htab->elf.dynobj; | |
a85d7ed0 NC |
3343 | sdyn = bfd_get_section_by_name (dynobj, ".dynamic"); |
3344 | ||
0451c93c | 3345 | if (htab->elf.dynamic_sections_created) |
a85d7ed0 | 3346 | { |
a85d7ed0 NC |
3347 | Elf32_External_Dyn *dyncon, *dynconend; |
3348 | ||
0451c93c MS |
3349 | if (sdyn == NULL || htab->sgot == NULL) |
3350 | abort (); | |
a85d7ed0 NC |
3351 | |
3352 | dyncon = (Elf32_External_Dyn *) sdyn->contents; | |
eea6121a | 3353 | dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size); |
a85d7ed0 NC |
3354 | for (; dyncon < dynconend; dyncon++) |
3355 | { | |
3356 | Elf_Internal_Dyn dyn; | |
a85d7ed0 | 3357 | asection *s; |
ec338859 | 3358 | |
a85d7ed0 | 3359 | bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn); |
ec338859 | 3360 | |
a85d7ed0 NC |
3361 | switch (dyn.d_tag) |
3362 | { | |
3363 | default: | |
0451c93c | 3364 | continue; |
ec338859 | 3365 | |
a85d7ed0 | 3366 | case DT_PLTGOT: |
0451c93c MS |
3367 | dyn.d_un.d_ptr = htab->sgot->output_section->vma; |
3368 | break; | |
ec338859 | 3369 | |
a85d7ed0 | 3370 | case DT_JMPREL: |
0451c93c | 3371 | dyn.d_un.d_ptr = htab->srelplt->output_section->vma; |
a85d7ed0 NC |
3372 | break; |
3373 | ||
3374 | case DT_PLTRELSZ: | |
0451c93c | 3375 | s = htab->srelplt->output_section; |
eea6121a | 3376 | dyn.d_un.d_val = s->size; |
a85d7ed0 NC |
3377 | break; |
3378 | } | |
0451c93c MS |
3379 | |
3380 | bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon); | |
a85d7ed0 NC |
3381 | } |
3382 | ||
3383 | /* Fill in the special first entry in the procedure linkage table. */ | |
eea6121a | 3384 | if (htab->splt && htab->splt->size > 0) |
a85d7ed0 | 3385 | { |
26e41594 AM |
3386 | memset (htab->splt->contents, 0, PLT_FIRST_ENTRY_SIZE); |
3387 | if (info->shared) | |
0451c93c | 3388 | { |
dc810e39 | 3389 | bfd_put_32 (output_bfd, (bfd_vma) PLT_PIC_FIRST_ENTRY_WORD0, |
26e41594 | 3390 | htab->splt->contents ); |
dc810e39 | 3391 | bfd_put_32 (output_bfd, (bfd_vma) PLT_PIC_FIRST_ENTRY_WORD1, |
26e41594 | 3392 | htab->splt->contents +4 ); |
dc810e39 | 3393 | bfd_put_32 (output_bfd, (bfd_vma) PLT_PIC_FIRST_ENTRY_WORD2, |
26e41594 | 3394 | htab->splt->contents +8 ); |
dc810e39 | 3395 | bfd_put_32 (output_bfd, (bfd_vma) PLT_PIC_FIRST_ENTRY_WORD3, |
26e41594 | 3396 | htab->splt->contents +12 ); |
dc810e39 | 3397 | bfd_put_32 (output_bfd, (bfd_vma) PLT_PIC_FIRST_ENTRY_WORD4, |
26e41594 AM |
3398 | htab->splt->contents +16 ); |
3399 | } | |
3400 | else | |
3401 | { | |
3402 | bfd_put_32 (output_bfd, (bfd_vma)PLT_FIRST_ENTRY_WORD0, | |
3403 | htab->splt->contents ); | |
3404 | bfd_put_32 (output_bfd, (bfd_vma) PLT_FIRST_ENTRY_WORD1, | |
3405 | htab->splt->contents +4 ); | |
3406 | bfd_put_32 (output_bfd, (bfd_vma) PLT_FIRST_ENTRY_WORD2, | |
3407 | htab->splt->contents +8 ); | |
3408 | bfd_put_32 (output_bfd, (bfd_vma) PLT_FIRST_ENTRY_WORD3, | |
3409 | htab->splt->contents +12 ); | |
3410 | bfd_put_32 (output_bfd, (bfd_vma) PLT_FIRST_ENTRY_WORD4, | |
3411 | htab->splt->contents +16 ); | |
3412 | bfd_put_32 (output_bfd, (bfd_vma) PLT_FIRST_ENTRY_WORD5, | |
3413 | htab->splt->contents +20 ); | |
3414 | bfd_put_32 (output_bfd, | |
3415 | htab->sgotplt->output_section->vma | |
0451c93c | 3416 | + htab->sgotplt->output_offset, |
26e41594 AM |
3417 | htab->splt->contents + 24); |
3418 | } | |
0451c93c MS |
3419 | elf_section_data (htab->splt->output_section) |
3420 | ->this_hdr.sh_entsize = 4; | |
a85d7ed0 NC |
3421 | } |
3422 | ||
3423 | } | |
3424 | ||
0451c93c | 3425 | if (htab->sgotplt) |
a85d7ed0 | 3426 | { |
0451c93c | 3427 | /* Fill in the first three entries in the global offset table. */ |
eea6121a | 3428 | if (htab->sgotplt->size > 0) |
0451c93c MS |
3429 | { |
3430 | bfd_put_32 (output_bfd, | |
3431 | (sdyn == NULL ? (bfd_vma) 0 | |
3432 | : sdyn->output_section->vma + sdyn->output_offset), | |
3433 | htab->sgotplt->contents); | |
3434 | /* One entry for shared object struct ptr. */ | |
3435 | bfd_put_32 (output_bfd, (bfd_vma) 0, htab->sgotplt->contents + 4); | |
3436 | /* One entry for _dl_runtime_resolve. */ | |
3437 | bfd_put_32 (output_bfd, (bfd_vma) 0, htab->sgotplt->contents + 8); | |
3438 | } | |
a85d7ed0 | 3439 | |
0451c93c MS |
3440 | elf_section_data (htab->sgotplt->output_section) |
3441 | ->this_hdr.sh_entsize = 4; | |
3442 | } | |
b34976b6 | 3443 | return TRUE; |
a85d7ed0 NC |
3444 | } |
3445 | ||
b34976b6 | 3446 | static bfd_boolean |
979f4a38 NC |
3447 | elf_s390_grok_prstatus (abfd, note) |
3448 | bfd * abfd; | |
3449 | Elf_Internal_Note * note; | |
3450 | { | |
3451 | int offset; | |
eea6121a | 3452 | unsigned int size; |
979f4a38 NC |
3453 | |
3454 | switch (note->descsz) | |
3455 | { | |
3456 | default: | |
b34976b6 | 3457 | return FALSE; |
979f4a38 NC |
3458 | |
3459 | case 224: /* S/390 Linux. */ | |
3460 | /* pr_cursig */ | |
3461 | elf_tdata (abfd)->core_signal = bfd_get_16 (abfd, note->descdata + 12); | |
3462 | ||
3463 | /* pr_pid */ | |
261b8d08 | 3464 | elf_tdata (abfd)->core_lwpid = bfd_get_32 (abfd, note->descdata + 24); |
979f4a38 NC |
3465 | |
3466 | /* pr_reg */ | |
3467 | offset = 72; | |
eea6121a | 3468 | size = 144; |
979f4a38 NC |
3469 | break; |
3470 | } | |
3471 | ||
3472 | /* Make a ".reg/999" section. */ | |
3473 | return _bfd_elfcore_make_pseudosection (abfd, ".reg", | |
eea6121a | 3474 | size, note->descpos + offset); |
979f4a38 NC |
3475 | } |
3476 | ||
4c45e5c9 JJ |
3477 | /* Return address for Ith PLT stub in section PLT, for relocation REL |
3478 | or (bfd_vma) -1 if it should not be included. */ | |
3479 | ||
3480 | static bfd_vma | |
3481 | elf_s390_plt_sym_val (bfd_vma i, const asection *plt, | |
3482 | const arelent *rel ATTRIBUTE_UNUSED) | |
3483 | { | |
3484 | return plt->vma + PLT_FIRST_ENTRY_SIZE + i * PLT_ENTRY_SIZE; | |
3485 | } | |
3486 | ||
55786da2 AK |
3487 | static bfd_boolean |
3488 | elf32_s390_merge_private_bfd_data (bfd *ibfd, bfd *obfd) | |
3489 | { | |
3490 | elf_elfheader (obfd)->e_flags |= elf_elfheader (ibfd)->e_flags; | |
3491 | return TRUE; | |
3492 | } | |
3493 | ||
4c45e5c9 | 3494 | |
a85d7ed0 NC |
3495 | #define TARGET_BIG_SYM bfd_elf32_s390_vec |
3496 | #define TARGET_BIG_NAME "elf32-s390" | |
3497 | #define ELF_ARCH bfd_arch_s390 | |
ae95ffa6 | 3498 | #define ELF_TARGET_ID S390_ELF_DATA |
a85d7ed0 NC |
3499 | #define ELF_MACHINE_CODE EM_S390 |
3500 | #define ELF_MACHINE_ALT1 EM_S390_OLD | |
3501 | #define ELF_MAXPAGESIZE 0x1000 | |
3502 | ||
3503 | #define elf_backend_can_gc_sections 1 | |
51b64d56 | 3504 | #define elf_backend_can_refcount 1 |
a85d7ed0 NC |
3505 | #define elf_backend_want_got_plt 1 |
3506 | #define elf_backend_plt_readonly 1 | |
3507 | #define elf_backend_want_plt_sym 0 | |
3508 | #define elf_backend_got_header_size 12 | |
b491616a | 3509 | #define elf_backend_rela_normal 1 |
a85d7ed0 | 3510 | |
26e41594 | 3511 | #define elf_info_to_howto elf_s390_info_to_howto |
a85d7ed0 | 3512 | |
a85d7ed0 NC |
3513 | #define bfd_elf32_bfd_is_local_label_name elf_s390_is_local_label_name |
3514 | #define bfd_elf32_bfd_link_hash_table_create elf_s390_link_hash_table_create | |
3515 | #define bfd_elf32_bfd_reloc_type_lookup elf_s390_reloc_type_lookup | |
157090f7 | 3516 | #define bfd_elf32_bfd_reloc_name_lookup elf_s390_reloc_name_lookup |
a85d7ed0 | 3517 | |
55786da2 AK |
3518 | #define bfd_elf32_bfd_merge_private_bfd_data elf32_s390_merge_private_bfd_data |
3519 | ||
a85d7ed0 | 3520 | #define elf_backend_adjust_dynamic_symbol elf_s390_adjust_dynamic_symbol |
26e41594 | 3521 | #define elf_backend_check_relocs elf_s390_check_relocs |
0451c93c MS |
3522 | #define elf_backend_copy_indirect_symbol elf_s390_copy_indirect_symbol |
3523 | #define elf_backend_create_dynamic_sections elf_s390_create_dynamic_sections | |
a85d7ed0 NC |
3524 | #define elf_backend_finish_dynamic_sections elf_s390_finish_dynamic_sections |
3525 | #define elf_backend_finish_dynamic_symbol elf_s390_finish_dynamic_symbol | |
26e41594 AM |
3526 | #define elf_backend_gc_mark_hook elf_s390_gc_mark_hook |
3527 | #define elf_backend_gc_sweep_hook elf_s390_gc_sweep_hook | |
0451c93c | 3528 | #define elf_backend_reloc_type_class elf_s390_reloc_type_class |
26e41594 | 3529 | #define elf_backend_relocate_section elf_s390_relocate_section |
a85d7ed0 | 3530 | #define elf_backend_size_dynamic_sections elf_s390_size_dynamic_sections |
74541ad4 | 3531 | #define elf_backend_init_index_section _bfd_elf_init_1_index_section |
29c2fb7c | 3532 | #define elf_backend_reloc_type_class elf_s390_reloc_type_class |
979f4a38 | 3533 | #define elf_backend_grok_prstatus elf_s390_grok_prstatus |
4c45e5c9 | 3534 | #define elf_backend_plt_sym_val elf_s390_plt_sym_val |
a85d7ed0 | 3535 | |
69fc87f1 | 3536 | #define bfd_elf32_mkobject elf_s390_mkobject |
26e41594 | 3537 | #define elf_backend_object_p elf_s390_object_p |
a85d7ed0 NC |
3538 | |
3539 | #include "elf32-target.h" |