Commit | Line | Data |
---|---|---|
252b5132 RH |
1 | /* SPARC-specific support for 32-bit ELF |
2 | Copyright (C) 1993, 94, 95, 96, 97, 98, 1999 Free Software Foundation, Inc. | |
3 | ||
4 | This file is part of BFD, the Binary File Descriptor library. | |
5 | ||
6 | This program is free software; you can redistribute it and/or modify | |
7 | it under the terms of the GNU General Public License as published by | |
8 | the Free Software Foundation; either version 2 of the License, or | |
9 | (at your option) any later version. | |
10 | ||
11 | This program is distributed in the hope that it will be useful, | |
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | GNU General Public License for more details. | |
15 | ||
16 | You should have received a copy of the GNU General Public License | |
17 | along with this program; if not, write to the Free Software | |
18 | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ | |
19 | ||
20 | #include "bfd.h" | |
21 | #include "sysdep.h" | |
22 | #include "bfdlink.h" | |
23 | #include "libbfd.h" | |
24 | #include "elf-bfd.h" | |
25 | #include "elf/sparc.h" | |
26 | ||
27 | static reloc_howto_type *elf32_sparc_reloc_type_lookup | |
28 | PARAMS ((bfd *, bfd_reloc_code_real_type)); | |
29 | static void elf32_sparc_info_to_howto | |
30 | PARAMS ((bfd *, arelent *, Elf_Internal_Rela *)); | |
31 | static boolean elf32_sparc_check_relocs | |
32 | PARAMS ((bfd *, struct bfd_link_info *, asection *, | |
33 | const Elf_Internal_Rela *)); | |
34 | static boolean elf32_sparc_adjust_dynamic_symbol | |
35 | PARAMS ((struct bfd_link_info *, struct elf_link_hash_entry *)); | |
252b5132 RH |
36 | static boolean elf32_sparc_size_dynamic_sections |
37 | PARAMS ((bfd *, struct bfd_link_info *)); | |
38 | static boolean elf32_sparc_relocate_section | |
39 | PARAMS ((bfd *, struct bfd_link_info *, bfd *, asection *, bfd_byte *, | |
40 | Elf_Internal_Rela *, Elf_Internal_Sym *, asection **)); | |
41 | static boolean elf32_sparc_finish_dynamic_symbol | |
42 | PARAMS ((bfd *, struct bfd_link_info *, struct elf_link_hash_entry *, | |
43 | Elf_Internal_Sym *)); | |
44 | static boolean elf32_sparc_finish_dynamic_sections | |
45 | PARAMS ((bfd *, struct bfd_link_info *)); | |
46 | static boolean elf32_sparc_merge_private_bfd_data PARAMS ((bfd *, bfd *)); | |
47 | static boolean elf32_sparc_object_p | |
48 | PARAMS ((bfd *)); | |
49 | static void elf32_sparc_final_write_processing | |
50 | PARAMS ((bfd *, boolean)); | |
51 | \f | |
52 | /* The relocation "howto" table. */ | |
53 | ||
54 | static bfd_reloc_status_type sparc_elf_notsupported_reloc | |
55 | PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **)); | |
56 | static bfd_reloc_status_type sparc_elf_wdisp16_reloc | |
57 | PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **)); | |
58 | ||
59 | reloc_howto_type _bfd_sparc_elf_howto_table[] = | |
60 | { | |
61 | HOWTO(R_SPARC_NONE, 0,0, 0,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_NONE", false,0,0x00000000,true), | |
62 | HOWTO(R_SPARC_8, 0,0, 8,false,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_8", false,0,0x000000ff,true), | |
63 | HOWTO(R_SPARC_16, 0,1,16,false,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_16", false,0,0x0000ffff,true), | |
64 | HOWTO(R_SPARC_32, 0,2,32,false,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_32", false,0,0xffffffff,true), | |
65 | HOWTO(R_SPARC_DISP8, 0,0, 8,true, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_DISP8", false,0,0x000000ff,true), | |
66 | HOWTO(R_SPARC_DISP16, 0,1,16,true, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_DISP16", false,0,0x0000ffff,true), | |
67 | HOWTO(R_SPARC_DISP32, 0,2,32,true, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_DISP32", false,0,0x00ffffff,true), | |
68 | HOWTO(R_SPARC_WDISP30, 2,2,30,true, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_WDISP30", false,0,0x3fffffff,true), | |
69 | HOWTO(R_SPARC_WDISP22, 2,2,22,true, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_WDISP22", false,0,0x003fffff,true), | |
70 | HOWTO(R_SPARC_HI22, 10,2,22,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_HI22", false,0,0x003fffff,true), | |
71 | HOWTO(R_SPARC_22, 0,2,22,false,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_22", false,0,0x003fffff,true), | |
72 | HOWTO(R_SPARC_13, 0,2,13,false,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_13", false,0,0x00001fff,true), | |
73 | HOWTO(R_SPARC_LO10, 0,2,10,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_LO10", false,0,0x000003ff,true), | |
74 | HOWTO(R_SPARC_GOT10, 0,2,10,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_GOT10", false,0,0x000003ff,true), | |
75 | HOWTO(R_SPARC_GOT13, 0,2,13,false,0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_GOT13", false,0,0x00001fff,true), | |
76 | HOWTO(R_SPARC_GOT22, 10,2,22,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_GOT22", false,0,0x003fffff,true), | |
77 | HOWTO(R_SPARC_PC10, 0,2,10,true, 0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_PC10", false,0,0x000003ff,true), | |
78 | HOWTO(R_SPARC_PC22, 10,2,22,true, 0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_PC22", false,0,0x003fffff,true), | |
79 | HOWTO(R_SPARC_WPLT30, 2,2,30,true, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_WPLT30", false,0,0x3fffffff,true), | |
80 | HOWTO(R_SPARC_COPY, 0,0,00,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_COPY", false,0,0x00000000,true), | |
81 | HOWTO(R_SPARC_GLOB_DAT, 0,0,00,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_GLOB_DAT",false,0,0x00000000,true), | |
82 | HOWTO(R_SPARC_JMP_SLOT, 0,0,00,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_JMP_SLOT",false,0,0x00000000,true), | |
83 | HOWTO(R_SPARC_RELATIVE, 0,0,00,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_RELATIVE",false,0,0x00000000,true), | |
84 | HOWTO(R_SPARC_UA32, 0,0,00,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_UA32", false,0,0x00000000,true), | |
85 | HOWTO(R_SPARC_PLT32, 0,0,00,false,0,complain_overflow_dont, sparc_elf_notsupported_reloc, "R_SPARC_PLT32", false,0,0x00000000,true), | |
86 | HOWTO(R_SPARC_HIPLT22, 0,0,00,false,0,complain_overflow_dont, sparc_elf_notsupported_reloc, "R_SPARC_HIPLT22", false,0,0x00000000,true), | |
87 | HOWTO(R_SPARC_LOPLT10, 0,0,00,false,0,complain_overflow_dont, sparc_elf_notsupported_reloc, "R_SPARC_LOPLT10", false,0,0x00000000,true), | |
88 | HOWTO(R_SPARC_PCPLT32, 0,0,00,false,0,complain_overflow_dont, sparc_elf_notsupported_reloc, "R_SPARC_PCPLT32", false,0,0x00000000,true), | |
89 | HOWTO(R_SPARC_PCPLT22, 0,0,00,false,0,complain_overflow_dont, sparc_elf_notsupported_reloc, "R_SPARC_PCPLT22", false,0,0x00000000,true), | |
90 | HOWTO(R_SPARC_PCPLT10, 0,0,00,false,0,complain_overflow_dont, sparc_elf_notsupported_reloc, "R_SPARC_PCPLT10", false,0,0x00000000,true), | |
91 | HOWTO(R_SPARC_10, 0,2,10,false,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_10", false,0,0x000003ff,true), | |
92 | HOWTO(R_SPARC_11, 0,2,11,false,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_11", false,0,0x000007ff,true), | |
93 | /* These are for sparc64 in a 64 bit environment. | |
94 | Values need to be here because the table is indexed by reloc number. */ | |
95 | HOWTO(R_SPARC_64, 0,0,00,false,0,complain_overflow_dont, sparc_elf_notsupported_reloc, "R_SPARC_64", false,0,0x00000000,true), | |
96 | HOWTO(R_SPARC_OLO10, 0,0,00,false,0,complain_overflow_dont, sparc_elf_notsupported_reloc, "R_SPARC_OLO10", false,0,0x00000000,true), | |
97 | HOWTO(R_SPARC_HH22, 0,0,00,false,0,complain_overflow_dont, sparc_elf_notsupported_reloc, "R_SPARC_HH22", false,0,0x00000000,true), | |
98 | HOWTO(R_SPARC_HM10, 0,0,00,false,0,complain_overflow_dont, sparc_elf_notsupported_reloc, "R_SPARC_HM10", false,0,0x00000000,true), | |
99 | HOWTO(R_SPARC_LM22, 0,0,00,false,0,complain_overflow_dont, sparc_elf_notsupported_reloc, "R_SPARC_LM22", false,0,0x00000000,true), | |
100 | HOWTO(R_SPARC_PC_HH22, 0,0,00,false,0,complain_overflow_dont, sparc_elf_notsupported_reloc, "R_SPARC_PC_HH22", false,0,0x00000000,true), | |
101 | HOWTO(R_SPARC_PC_HM10, 0,0,00,false,0,complain_overflow_dont, sparc_elf_notsupported_reloc, "R_SPARC_PC_HM10", false,0,0x00000000,true), | |
102 | HOWTO(R_SPARC_PC_LM22, 0,0,00,false,0,complain_overflow_dont, sparc_elf_notsupported_reloc, "R_SPARC_PC_LM22", false,0,0x00000000,true), | |
103 | /* End sparc64 in 64 bit environment values. | |
104 | The following are for sparc64 in a 32 bit environment. */ | |
105 | HOWTO(R_SPARC_WDISP16, 2,2,16,true, 0,complain_overflow_signed, sparc_elf_wdisp16_reloc,"R_SPARC_WDISP16", false,0,0x00000000,true), | |
106 | HOWTO(R_SPARC_WDISP19, 2,2,19,true, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_WDISP19", false,0,0x0007ffff,true), | |
107 | HOWTO(R_SPARC_UNUSED_42, 0,0, 0,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_UNUSED_42",false,0,0x00000000,true), | |
108 | HOWTO(R_SPARC_7, 0,2, 7,false,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_7", false,0,0x0000007f,true), | |
109 | HOWTO(R_SPARC_5, 0,2, 5,false,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_5", false,0,0x0000001f,true), | |
110 | HOWTO(R_SPARC_6, 0,2, 6,false,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_6", false,0,0x0000003f,true), | |
111 | HOWTO(R_SPARC_NONE, 0,0, 0,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_NONE", false,0,0x00000000,true), | |
112 | HOWTO(R_SPARC_NONE, 0,0, 0,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_NONE", false,0,0x00000000,true), | |
113 | HOWTO(R_SPARC_NONE, 0,0, 0,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_NONE", false,0,0x00000000,true), | |
114 | HOWTO(R_SPARC_NONE, 0,0, 0,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_NONE", false,0,0x00000000,true), | |
115 | HOWTO(R_SPARC_NONE, 0,0, 0,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_NONE", false,0,0x00000000,true), | |
116 | HOWTO(R_SPARC_NONE, 0,0, 0,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_NONE", false,0,0x00000000,true), | |
117 | HOWTO(R_SPARC_NONE, 0,0, 0,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_NONE", false,0,0x00000000,true), | |
118 | HOWTO(R_SPARC_NONE, 0,0, 0,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_NONE", false,0,0x00000000,true), | |
119 | HOWTO(R_SPARC_NONE, 0,0, 0,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_NONE", false,0,0x00000000,true), | |
120 | HOWTO(R_SPARC_NONE, 0,0, 0,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_NONE", false,0,0x00000000,true), | |
121 | HOWTO(R_SPARC_REV32, 0,2,32,false,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_REV32", false,0,0xffffffff,true), | |
122 | }; | |
123 | static reloc_howto_type elf32_sparc_vtinherit_howto = | |
124 | HOWTO (R_SPARC_GNU_VTINHERIT, 0,2,0,false,0,complain_overflow_dont, NULL, "R_SPARC_GNU_VTINHERIT", false,0, 0, false); | |
125 | static reloc_howto_type elf32_sparc_vtentry_howto = | |
126 | HOWTO (R_SPARC_GNU_VTENTRY, 0,2,0,false,0,complain_overflow_dont, _bfd_elf_rel_vtable_reloc_fn,"R_SPARC_GNU_VTENTRY", false,0,0, false); | |
127 | ||
128 | ||
129 | struct elf_reloc_map { | |
130 | bfd_reloc_code_real_type bfd_reloc_val; | |
131 | unsigned char elf_reloc_val; | |
132 | }; | |
133 | ||
134 | static CONST struct elf_reloc_map sparc_reloc_map[] = | |
135 | { | |
136 | { BFD_RELOC_NONE, R_SPARC_NONE, }, | |
137 | { BFD_RELOC_16, R_SPARC_16, }, | |
138 | { BFD_RELOC_8, R_SPARC_8 }, | |
139 | { BFD_RELOC_8_PCREL, R_SPARC_DISP8 }, | |
140 | { BFD_RELOC_CTOR, R_SPARC_32 }, | |
141 | { BFD_RELOC_32, R_SPARC_32 }, | |
142 | { BFD_RELOC_32_PCREL, R_SPARC_DISP32 }, | |
143 | { BFD_RELOC_HI22, R_SPARC_HI22 }, | |
144 | { BFD_RELOC_LO10, R_SPARC_LO10, }, | |
145 | { BFD_RELOC_32_PCREL_S2, R_SPARC_WDISP30 }, | |
146 | { BFD_RELOC_SPARC22, R_SPARC_22 }, | |
147 | { BFD_RELOC_SPARC13, R_SPARC_13 }, | |
148 | { BFD_RELOC_SPARC_GOT10, R_SPARC_GOT10 }, | |
149 | { BFD_RELOC_SPARC_GOT13, R_SPARC_GOT13 }, | |
150 | { BFD_RELOC_SPARC_GOT22, R_SPARC_GOT22 }, | |
151 | { BFD_RELOC_SPARC_PC10, R_SPARC_PC10 }, | |
152 | { BFD_RELOC_SPARC_PC22, R_SPARC_PC22 }, | |
153 | { BFD_RELOC_SPARC_WPLT30, R_SPARC_WPLT30 }, | |
154 | { BFD_RELOC_SPARC_COPY, R_SPARC_COPY }, | |
155 | { BFD_RELOC_SPARC_GLOB_DAT, R_SPARC_GLOB_DAT }, | |
156 | { BFD_RELOC_SPARC_JMP_SLOT, R_SPARC_JMP_SLOT }, | |
157 | { BFD_RELOC_SPARC_RELATIVE, R_SPARC_RELATIVE }, | |
158 | { BFD_RELOC_SPARC_WDISP22, R_SPARC_WDISP22 }, | |
159 | /* ??? Doesn't dwarf use this? */ | |
160 | /*{ BFD_RELOC_SPARC_UA32, R_SPARC_UA32 }, not used?? */ | |
161 | {BFD_RELOC_SPARC_10, R_SPARC_10}, | |
162 | {BFD_RELOC_SPARC_11, R_SPARC_11}, | |
163 | {BFD_RELOC_SPARC_64, R_SPARC_64}, | |
164 | {BFD_RELOC_SPARC_OLO10, R_SPARC_OLO10}, | |
165 | {BFD_RELOC_SPARC_HH22, R_SPARC_HH22}, | |
166 | {BFD_RELOC_SPARC_HM10, R_SPARC_HM10}, | |
167 | {BFD_RELOC_SPARC_LM22, R_SPARC_LM22}, | |
168 | {BFD_RELOC_SPARC_PC_HH22, R_SPARC_PC_HH22}, | |
169 | {BFD_RELOC_SPARC_PC_HM10, R_SPARC_PC_HM10}, | |
170 | {BFD_RELOC_SPARC_PC_LM22, R_SPARC_PC_LM22}, | |
171 | {BFD_RELOC_SPARC_WDISP16, R_SPARC_WDISP16}, | |
172 | {BFD_RELOC_SPARC_WDISP19, R_SPARC_WDISP19}, | |
173 | {BFD_RELOC_SPARC_7, R_SPARC_7}, | |
174 | {BFD_RELOC_SPARC_5, R_SPARC_5}, | |
175 | {BFD_RELOC_SPARC_6, R_SPARC_6}, | |
176 | {BFD_RELOC_SPARC_REV32, R_SPARC_REV32 }, | |
177 | {BFD_RELOC_VTABLE_INHERIT, R_SPARC_GNU_VTINHERIT}, | |
178 | {BFD_RELOC_VTABLE_ENTRY, R_SPARC_GNU_VTENTRY}, | |
179 | }; | |
180 | ||
181 | static reloc_howto_type * | |
182 | elf32_sparc_reloc_type_lookup (abfd, code) | |
5f771d47 | 183 | bfd *abfd ATTRIBUTE_UNUSED; |
252b5132 RH |
184 | bfd_reloc_code_real_type code; |
185 | { | |
186 | unsigned int i; | |
187 | ||
188 | switch (code) | |
189 | { | |
190 | case BFD_RELOC_VTABLE_INHERIT: | |
191 | return &elf32_sparc_vtinherit_howto; | |
192 | ||
193 | case BFD_RELOC_VTABLE_ENTRY: | |
194 | return &elf32_sparc_vtentry_howto; | |
195 | ||
196 | default: | |
197 | for (i = 0; i < sizeof (sparc_reloc_map) / sizeof (struct elf_reloc_map); i++) | |
198 | { | |
199 | if (sparc_reloc_map[i].bfd_reloc_val == code) | |
200 | return &_bfd_sparc_elf_howto_table[(int) sparc_reloc_map[i].elf_reloc_val]; | |
201 | } | |
202 | } | |
203 | bfd_set_error (bfd_error_bad_value); | |
204 | return NULL; | |
205 | } | |
206 | ||
207 | /* We need to use ELF32_R_TYPE so we have our own copy of this function, | |
208 | and elf64-sparc.c has its own copy. */ | |
209 | ||
210 | static void | |
211 | elf32_sparc_info_to_howto (abfd, cache_ptr, dst) | |
5f771d47 | 212 | bfd *abfd ATTRIBUTE_UNUSED; |
252b5132 RH |
213 | arelent *cache_ptr; |
214 | Elf_Internal_Rela *dst; | |
215 | { | |
60dac299 RH |
216 | switch (ELF32_R_TYPE(dst->r_info)) |
217 | { | |
218 | case R_SPARC_GNU_VTINHERIT: | |
219 | cache_ptr->howto = &elf32_sparc_vtinherit_howto; | |
220 | break; | |
221 | ||
222 | case R_SPARC_GNU_VTENTRY: | |
223 | cache_ptr->howto = &elf32_sparc_vtentry_howto; | |
224 | break; | |
225 | ||
226 | default: | |
227 | BFD_ASSERT (ELF32_R_TYPE(dst->r_info) < (unsigned int) R_SPARC_max_std); | |
228 | cache_ptr->howto = &_bfd_sparc_elf_howto_table[ELF32_R_TYPE(dst->r_info)]; | |
229 | } | |
252b5132 RH |
230 | } |
231 | \f | |
232 | /* For unsupported relocs. */ | |
233 | ||
234 | static bfd_reloc_status_type | |
235 | sparc_elf_notsupported_reloc (abfd, | |
236 | reloc_entry, | |
237 | symbol, | |
238 | data, | |
239 | input_section, | |
240 | output_bfd, | |
241 | error_message) | |
5f771d47 ILT |
242 | bfd *abfd ATTRIBUTE_UNUSED; |
243 | arelent *reloc_entry ATTRIBUTE_UNUSED; | |
244 | asymbol *symbol ATTRIBUTE_UNUSED; | |
245 | PTR data ATTRIBUTE_UNUSED; | |
246 | asection *input_section ATTRIBUTE_UNUSED; | |
247 | bfd *output_bfd ATTRIBUTE_UNUSED; | |
248 | char **error_message ATTRIBUTE_UNUSED; | |
252b5132 RH |
249 | { |
250 | return bfd_reloc_notsupported; | |
251 | } | |
252 | ||
253 | /* Handle the WDISP16 reloc. */ | |
254 | ||
255 | static bfd_reloc_status_type | |
256 | sparc_elf_wdisp16_reloc (abfd, | |
257 | reloc_entry, | |
258 | symbol, | |
259 | data, | |
260 | input_section, | |
261 | output_bfd, | |
262 | error_message) | |
263 | bfd *abfd; | |
264 | arelent *reloc_entry; | |
265 | asymbol *symbol; | |
266 | PTR data; | |
267 | asection *input_section; | |
268 | bfd *output_bfd; | |
5f771d47 | 269 | char **error_message ATTRIBUTE_UNUSED; |
252b5132 RH |
270 | { |
271 | bfd_vma relocation; | |
272 | bfd_vma x; | |
273 | ||
274 | if (output_bfd != (bfd *) NULL | |
275 | && (symbol->flags & BSF_SECTION_SYM) == 0 | |
276 | && (! reloc_entry->howto->partial_inplace | |
277 | || reloc_entry->addend == 0)) | |
278 | { | |
279 | reloc_entry->address += input_section->output_offset; | |
280 | return bfd_reloc_ok; | |
281 | } | |
282 | ||
283 | if (output_bfd != NULL) | |
284 | return bfd_reloc_continue; | |
285 | ||
286 | if (reloc_entry->address > input_section->_cooked_size) | |
287 | return bfd_reloc_outofrange; | |
288 | ||
289 | relocation = (symbol->value | |
290 | + symbol->section->output_section->vma | |
291 | + symbol->section->output_offset); | |
292 | relocation += reloc_entry->addend; | |
293 | relocation -= (input_section->output_section->vma | |
294 | + input_section->output_offset); | |
295 | relocation -= reloc_entry->address; | |
296 | ||
297 | x = bfd_get_32 (abfd, (bfd_byte *) data + reloc_entry->address); | |
298 | x |= ((((relocation >> 2) & 0xc000) << 6) | |
299 | | ((relocation >> 2) & 0x3fff)); | |
300 | bfd_put_32 (abfd, x, (bfd_byte *) data + reloc_entry->address); | |
301 | ||
302 | if ((bfd_signed_vma) relocation < - 0x40000 | |
303 | || (bfd_signed_vma) relocation > 0x3ffff) | |
304 | return bfd_reloc_overflow; | |
305 | else | |
306 | return bfd_reloc_ok; | |
307 | } | |
308 | \f | |
309 | /* Functions for the SPARC ELF linker. */ | |
310 | ||
311 | /* The name of the dynamic interpreter. This is put in the .interp | |
312 | section. */ | |
313 | ||
314 | #define ELF_DYNAMIC_INTERPRETER "/usr/lib/ld.so.1" | |
315 | ||
316 | /* The nop opcode we use. */ | |
317 | ||
318 | #define SPARC_NOP 0x01000000 | |
319 | ||
320 | /* The size in bytes of an entry in the procedure linkage table. */ | |
321 | ||
322 | #define PLT_ENTRY_SIZE 12 | |
323 | ||
324 | /* The first four entries in a procedure linkage table are reserved, | |
325 | and the initial contents are unimportant (we zero them out). | |
326 | Subsequent entries look like this. See the SVR4 ABI SPARC | |
327 | supplement to see how this works. */ | |
328 | ||
329 | /* sethi %hi(.-.plt0),%g1. We fill in the address later. */ | |
330 | #define PLT_ENTRY_WORD0 0x03000000 | |
331 | /* b,a .plt0. We fill in the offset later. */ | |
332 | #define PLT_ENTRY_WORD1 0x30800000 | |
333 | /* nop. */ | |
334 | #define PLT_ENTRY_WORD2 SPARC_NOP | |
335 | ||
336 | /* Look through the relocs for a section during the first phase, and | |
337 | allocate space in the global offset table or procedure linkage | |
338 | table. */ | |
339 | ||
340 | static boolean | |
341 | elf32_sparc_check_relocs (abfd, info, sec, relocs) | |
342 | bfd *abfd; | |
343 | struct bfd_link_info *info; | |
344 | asection *sec; | |
345 | const Elf_Internal_Rela *relocs; | |
346 | { | |
347 | bfd *dynobj; | |
348 | Elf_Internal_Shdr *symtab_hdr; | |
349 | struct elf_link_hash_entry **sym_hashes; | |
350 | bfd_vma *local_got_offsets; | |
351 | const Elf_Internal_Rela *rel; | |
352 | const Elf_Internal_Rela *rel_end; | |
353 | asection *sgot; | |
354 | asection *srelgot; | |
355 | asection *sreloc; | |
356 | ||
357 | if (info->relocateable) | |
358 | return true; | |
359 | ||
360 | dynobj = elf_hash_table (info)->dynobj; | |
361 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; | |
362 | sym_hashes = elf_sym_hashes (abfd); | |
363 | local_got_offsets = elf_local_got_offsets (abfd); | |
364 | ||
365 | sgot = NULL; | |
366 | srelgot = NULL; | |
367 | sreloc = NULL; | |
368 | ||
369 | rel_end = relocs + sec->reloc_count; | |
370 | for (rel = relocs; rel < rel_end; rel++) | |
371 | { | |
372 | unsigned long r_symndx; | |
373 | struct elf_link_hash_entry *h; | |
374 | ||
375 | r_symndx = ELF32_R_SYM (rel->r_info); | |
376 | if (r_symndx < symtab_hdr->sh_info) | |
377 | h = NULL; | |
378 | else | |
379 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
380 | ||
381 | switch (ELF32_R_TYPE (rel->r_info)) | |
382 | { | |
383 | case R_SPARC_GOT10: | |
384 | case R_SPARC_GOT13: | |
385 | case R_SPARC_GOT22: | |
386 | /* This symbol requires a global offset table entry. */ | |
387 | ||
388 | if (dynobj == NULL) | |
389 | { | |
390 | /* Create the .got section. */ | |
391 | elf_hash_table (info)->dynobj = dynobj = abfd; | |
392 | if (! _bfd_elf_create_got_section (dynobj, info)) | |
393 | return false; | |
394 | } | |
395 | ||
396 | if (sgot == NULL) | |
397 | { | |
398 | sgot = bfd_get_section_by_name (dynobj, ".got"); | |
399 | BFD_ASSERT (sgot != NULL); | |
400 | } | |
401 | ||
402 | if (srelgot == NULL | |
403 | && (h != NULL || info->shared)) | |
404 | { | |
405 | srelgot = bfd_get_section_by_name (dynobj, ".rela.got"); | |
406 | if (srelgot == NULL) | |
407 | { | |
408 | srelgot = bfd_make_section (dynobj, ".rela.got"); | |
409 | if (srelgot == NULL | |
410 | || ! bfd_set_section_flags (dynobj, srelgot, | |
411 | (SEC_ALLOC | |
412 | | SEC_LOAD | |
413 | | SEC_HAS_CONTENTS | |
414 | | SEC_IN_MEMORY | |
415 | | SEC_LINKER_CREATED | |
416 | | SEC_READONLY)) | |
417 | || ! bfd_set_section_alignment (dynobj, srelgot, 2)) | |
418 | return false; | |
419 | } | |
420 | } | |
421 | ||
422 | if (h != NULL) | |
423 | { | |
424 | if (h->got.offset != (bfd_vma) -1) | |
425 | { | |
426 | /* We have already allocated space in the .got. */ | |
427 | break; | |
428 | } | |
429 | h->got.offset = sgot->_raw_size; | |
430 | ||
431 | /* Make sure this symbol is output as a dynamic symbol. */ | |
432 | if (h->dynindx == -1) | |
433 | { | |
434 | if (! bfd_elf32_link_record_dynamic_symbol (info, h)) | |
435 | return false; | |
436 | } | |
437 | ||
438 | srelgot->_raw_size += sizeof (Elf32_External_Rela); | |
439 | } | |
440 | else | |
441 | { | |
442 | /* This is a global offset table entry for a local | |
443 | symbol. */ | |
444 | if (local_got_offsets == NULL) | |
445 | { | |
446 | size_t size; | |
447 | register unsigned int i; | |
448 | ||
449 | size = symtab_hdr->sh_info * sizeof (bfd_vma); | |
450 | local_got_offsets = (bfd_vma *) bfd_alloc (abfd, size); | |
451 | if (local_got_offsets == NULL) | |
452 | return false; | |
453 | elf_local_got_offsets (abfd) = local_got_offsets; | |
454 | for (i = 0; i < symtab_hdr->sh_info; i++) | |
455 | local_got_offsets[i] = (bfd_vma) -1; | |
456 | } | |
457 | if (local_got_offsets[r_symndx] != (bfd_vma) -1) | |
458 | { | |
459 | /* We have already allocated space in the .got. */ | |
460 | break; | |
461 | } | |
462 | local_got_offsets[r_symndx] = sgot->_raw_size; | |
463 | ||
464 | if (info->shared) | |
465 | { | |
466 | /* If we are generating a shared object, we need to | |
467 | output a R_SPARC_RELATIVE reloc so that the | |
468 | dynamic linker can adjust this GOT entry. */ | |
469 | srelgot->_raw_size += sizeof (Elf32_External_Rela); | |
470 | } | |
471 | } | |
472 | ||
473 | sgot->_raw_size += 4; | |
474 | ||
475 | /* If the .got section is more than 0x1000 bytes, we add | |
476 | 0x1000 to the value of _GLOBAL_OFFSET_TABLE_, so that 13 | |
477 | bit relocations have a greater chance of working. */ | |
478 | if (sgot->_raw_size >= 0x1000 | |
479 | && elf_hash_table (info)->hgot->root.u.def.value == 0) | |
480 | elf_hash_table (info)->hgot->root.u.def.value = 0x1000; | |
481 | ||
482 | break; | |
483 | ||
484 | case R_SPARC_WPLT30: | |
485 | /* This symbol requires a procedure linkage table entry. We | |
486 | actually build the entry in adjust_dynamic_symbol, | |
487 | because this might be a case of linking PIC code without | |
488 | linking in any dynamic objects, in which case we don't | |
489 | need to generate a procedure linkage table after all. */ | |
490 | ||
491 | if (h == NULL) | |
492 | { | |
493 | /* The Solaris native assembler will generate a WPLT30 | |
494 | reloc for a local symbol if you assemble a call from | |
495 | one section to another when using -K pic. We treat | |
496 | it as WDISP30. */ | |
497 | break; | |
498 | } | |
499 | ||
500 | /* Make sure this symbol is output as a dynamic symbol. */ | |
501 | if (h->dynindx == -1) | |
502 | { | |
503 | if (! bfd_elf32_link_record_dynamic_symbol (info, h)) | |
504 | return false; | |
505 | } | |
506 | ||
507 | h->elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_PLT; | |
508 | ||
509 | break; | |
510 | ||
511 | case R_SPARC_PC10: | |
512 | case R_SPARC_PC22: | |
513 | if (h != NULL | |
514 | && strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0) | |
515 | break; | |
516 | /* Fall through. */ | |
517 | case R_SPARC_DISP8: | |
518 | case R_SPARC_DISP16: | |
519 | case R_SPARC_DISP32: | |
520 | case R_SPARC_WDISP30: | |
521 | case R_SPARC_WDISP22: | |
522 | case R_SPARC_WDISP19: | |
523 | case R_SPARC_WDISP16: | |
524 | /* If we are linking with -Bsymbolic, we do not need to copy | |
525 | a PC relative reloc against a global symbol which is | |
526 | defined in an object we are including in the link (i.e., | |
527 | DEF_REGULAR is set). FIXME: At this point we have not | |
528 | seen all the input files, so it is possible that | |
529 | DEF_REGULAR is not set now but will be set later (it is | |
530 | never cleared). This needs to be handled as in | |
531 | elf32-i386.c. */ | |
532 | if (h == NULL | |
533 | || (info->symbolic | |
534 | && (h->elf_link_hash_flags | |
535 | & ELF_LINK_HASH_DEF_REGULAR) != 0)) | |
536 | break; | |
537 | /* Fall through. */ | |
538 | case R_SPARC_8: | |
539 | case R_SPARC_16: | |
540 | case R_SPARC_32: | |
541 | case R_SPARC_HI22: | |
542 | case R_SPARC_22: | |
543 | case R_SPARC_13: | |
544 | case R_SPARC_LO10: | |
545 | case R_SPARC_UA32: | |
546 | if (info->shared) | |
547 | { | |
548 | /* When creating a shared object, we must copy these | |
549 | relocs into the output file. We create a reloc | |
550 | section in dynobj and make room for the reloc. */ | |
551 | if (sreloc == NULL) | |
552 | { | |
553 | const char *name; | |
554 | ||
555 | name = (bfd_elf_string_from_elf_section | |
556 | (abfd, | |
557 | elf_elfheader (abfd)->e_shstrndx, | |
558 | elf_section_data (sec)->rel_hdr.sh_name)); | |
559 | if (name == NULL) | |
560 | return false; | |
561 | ||
562 | BFD_ASSERT (strncmp (name, ".rela", 5) == 0 | |
563 | && strcmp (bfd_get_section_name (abfd, sec), | |
564 | name + 5) == 0); | |
565 | ||
566 | sreloc = bfd_get_section_by_name (dynobj, name); | |
567 | if (sreloc == NULL) | |
568 | { | |
569 | flagword flags; | |
570 | ||
571 | sreloc = bfd_make_section (dynobj, name); | |
572 | flags = (SEC_HAS_CONTENTS | SEC_READONLY | |
573 | | SEC_IN_MEMORY | SEC_LINKER_CREATED); | |
574 | if ((sec->flags & SEC_ALLOC) != 0) | |
575 | flags |= SEC_ALLOC | SEC_LOAD; | |
576 | if (sreloc == NULL | |
577 | || ! bfd_set_section_flags (dynobj, sreloc, flags) | |
578 | || ! bfd_set_section_alignment (dynobj, sreloc, 2)) | |
579 | return false; | |
580 | } | |
581 | } | |
582 | ||
583 | sreloc->_raw_size += sizeof (Elf32_External_Rela); | |
584 | } | |
585 | ||
586 | break; | |
587 | ||
588 | case R_SPARC_GNU_VTINHERIT: | |
589 | if (!_bfd_elf32_gc_record_vtinherit (abfd, sec, h, rel->r_offset)) | |
590 | return false; | |
591 | break; | |
592 | ||
593 | case R_SPARC_GNU_VTENTRY: | |
594 | if (!_bfd_elf32_gc_record_vtentry (abfd, sec, h, rel->r_addend)) | |
595 | return false; | |
596 | break; | |
597 | ||
598 | default: | |
599 | break; | |
600 | } | |
601 | } | |
602 | ||
603 | return true; | |
604 | } | |
605 | ||
606 | static asection * | |
607 | elf32_sparc_gc_mark_hook (abfd, info, rel, h, sym) | |
608 | bfd *abfd; | |
5f771d47 | 609 | struct bfd_link_info *info ATTRIBUTE_UNUSED; |
252b5132 RH |
610 | Elf_Internal_Rela *rel; |
611 | struct elf_link_hash_entry *h; | |
612 | Elf_Internal_Sym *sym; | |
613 | { | |
614 | ||
615 | if (h != NULL) | |
616 | { | |
617 | switch (ELF32_R_TYPE (rel->r_info)) | |
618 | { | |
619 | case R_SPARC_GNU_VTINHERIT: | |
620 | case R_SPARC_GNU_VTENTRY: | |
621 | break; | |
622 | ||
623 | default: | |
624 | switch (h->root.type) | |
625 | { | |
626 | case bfd_link_hash_defined: | |
627 | case bfd_link_hash_defweak: | |
628 | return h->root.u.def.section; | |
629 | ||
630 | case bfd_link_hash_common: | |
631 | return h->root.u.c.p->section; | |
e049a0de ILT |
632 | |
633 | default: | |
634 | break; | |
252b5132 RH |
635 | } |
636 | } | |
637 | } | |
638 | else | |
639 | { | |
640 | if (!(elf_bad_symtab (abfd) | |
641 | && ELF_ST_BIND (sym->st_info) != STB_LOCAL) | |
642 | && ! ((sym->st_shndx <= 0 || sym->st_shndx >= SHN_LORESERVE) | |
643 | && sym->st_shndx != SHN_COMMON)) | |
644 | { | |
645 | return bfd_section_from_elf_index (abfd, sym->st_shndx); | |
646 | } | |
647 | } | |
648 | ||
649 | return NULL; | |
650 | } | |
651 | ||
652 | /* Update the got entry reference counts for the section being removed. */ | |
653 | static boolean | |
654 | elf32_sparc_gc_sweep_hook (abfd, info, sec, relocs) | |
655 | bfd *abfd; | |
5f771d47 | 656 | struct bfd_link_info *info ATTRIBUTE_UNUSED; |
252b5132 RH |
657 | asection *sec; |
658 | const Elf_Internal_Rela *relocs; | |
659 | { | |
660 | ||
661 | Elf_Internal_Shdr *symtab_hdr; | |
662 | struct elf_link_hash_entry **sym_hashes; | |
663 | bfd_signed_vma *local_got_refcounts; | |
664 | const Elf_Internal_Rela *rel, *relend; | |
665 | unsigned long r_symndx; | |
666 | struct elf_link_hash_entry *h; | |
667 | ||
668 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; | |
669 | sym_hashes = elf_sym_hashes (abfd); | |
670 | local_got_refcounts = elf_local_got_refcounts (abfd); | |
671 | ||
672 | relend = relocs + sec->reloc_count; | |
673 | for (rel = relocs; rel < relend; rel++) | |
674 | switch (ELF32_R_TYPE (rel->r_info)) | |
675 | { | |
676 | case R_SPARC_GOT10: | |
677 | case R_SPARC_GOT13: | |
678 | case R_SPARC_GOT22: | |
679 | r_symndx = ELF32_R_SYM (rel->r_info); | |
680 | if (r_symndx >= symtab_hdr->sh_info) | |
681 | { | |
682 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
683 | if (h->got.refcount > 0) | |
684 | h->got.refcount--; | |
685 | } | |
686 | else | |
687 | { | |
688 | if (local_got_refcounts[r_symndx] > 0) | |
689 | local_got_refcounts[r_symndx]--; | |
690 | } | |
691 | break; | |
692 | ||
693 | case R_SPARC_PLT32: | |
694 | case R_SPARC_HIPLT22: | |
695 | case R_SPARC_LOPLT10: | |
696 | case R_SPARC_PCPLT32: | |
697 | case R_SPARC_PCPLT10: | |
698 | r_symndx = ELF32_R_SYM (rel->r_info); | |
699 | if (r_symndx >= symtab_hdr->sh_info) | |
700 | { | |
701 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
702 | if (h->plt.refcount > 0) | |
703 | h->plt.refcount--; | |
704 | } | |
705 | break; | |
706 | ||
707 | default: | |
708 | break; | |
709 | } | |
710 | ||
711 | return true; | |
712 | } | |
713 | ||
714 | /* Adjust a symbol defined by a dynamic object and referenced by a | |
715 | regular object. The current definition is in some section of the | |
716 | dynamic object, but we're not including those sections. We have to | |
717 | change the definition to something the rest of the link can | |
718 | understand. */ | |
719 | ||
720 | static boolean | |
721 | elf32_sparc_adjust_dynamic_symbol (info, h) | |
722 | struct bfd_link_info *info; | |
723 | struct elf_link_hash_entry *h; | |
724 | { | |
725 | bfd *dynobj; | |
726 | asection *s; | |
727 | unsigned int power_of_two; | |
728 | ||
729 | dynobj = elf_hash_table (info)->dynobj; | |
730 | ||
731 | /* Make sure we know what is going on here. */ | |
732 | BFD_ASSERT (dynobj != NULL | |
733 | && ((h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_PLT) | |
734 | || h->weakdef != NULL | |
735 | || ((h->elf_link_hash_flags | |
736 | & ELF_LINK_HASH_DEF_DYNAMIC) != 0 | |
737 | && (h->elf_link_hash_flags | |
738 | & ELF_LINK_HASH_REF_REGULAR) != 0 | |
739 | && (h->elf_link_hash_flags | |
740 | & ELF_LINK_HASH_DEF_REGULAR) == 0))); | |
741 | ||
742 | /* If this is a function, put it in the procedure linkage table. We | |
743 | will fill in the contents of the procedure linkage table later | |
744 | (although we could actually do it here). The STT_NOTYPE | |
745 | condition is a hack specifically for the Oracle libraries | |
746 | delivered for Solaris; for some inexplicable reason, they define | |
747 | some of their functions as STT_NOTYPE when they really should be | |
748 | STT_FUNC. */ | |
749 | if (h->type == STT_FUNC | |
750 | || (h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_PLT) != 0 | |
751 | || (h->type == STT_NOTYPE | |
752 | && (h->root.type == bfd_link_hash_defined | |
753 | || h->root.type == bfd_link_hash_defweak) | |
754 | && (h->root.u.def.section->flags & SEC_CODE) != 0)) | |
755 | { | |
756 | if (! elf_hash_table (info)->dynamic_sections_created | |
757 | || ((!info->shared || info->symbolic || h->dynindx == -1) | |
758 | && (h->elf_link_hash_flags | |
759 | & ELF_LINK_HASH_DEF_REGULAR) != 0)) | |
760 | { | |
761 | /* This case can occur if we saw a WPLT30 reloc in an input | |
762 | file, but none of the input files were dynamic objects. | |
763 | Or, when linking the main application or a -Bsymbolic | |
764 | shared library against PIC code. Or when a global symbol | |
765 | has been made private, e.g. via versioning. | |
766 | ||
767 | In these cases we know what value the symbol will resolve | |
768 | to, so we don't actually need to build a procedure linkage | |
769 | table, and we can just do a WDISP30 reloc instead. */ | |
770 | ||
771 | h->elf_link_hash_flags &= ~ELF_LINK_HASH_NEEDS_PLT; | |
772 | return true; | |
773 | } | |
774 | ||
775 | s = bfd_get_section_by_name (dynobj, ".plt"); | |
776 | BFD_ASSERT (s != NULL); | |
777 | ||
778 | /* The first four entries in .plt are reserved. */ | |
779 | if (s->_raw_size == 0) | |
780 | s->_raw_size = 4 * PLT_ENTRY_SIZE; | |
781 | ||
782 | /* The procedure linkage table has a maximum size. */ | |
783 | if (s->_raw_size >= 0x400000) | |
784 | { | |
785 | bfd_set_error (bfd_error_bad_value); | |
786 | return false; | |
787 | } | |
788 | ||
789 | /* If this symbol is not defined in a regular file, and we are | |
790 | not generating a shared library, then set the symbol to this | |
791 | location in the .plt. This is required to make function | |
792 | pointers compare as equal between the normal executable and | |
793 | the shared library. */ | |
794 | if (! info->shared | |
795 | && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0) | |
796 | { | |
797 | h->root.u.def.section = s; | |
798 | h->root.u.def.value = s->_raw_size; | |
799 | } | |
800 | ||
801 | h->plt.offset = s->_raw_size; | |
802 | ||
803 | /* Make room for this entry. */ | |
804 | s->_raw_size += PLT_ENTRY_SIZE; | |
805 | ||
806 | /* We also need to make an entry in the .rela.plt section. */ | |
807 | ||
808 | s = bfd_get_section_by_name (dynobj, ".rela.plt"); | |
809 | BFD_ASSERT (s != NULL); | |
810 | s->_raw_size += sizeof (Elf32_External_Rela); | |
811 | ||
812 | return true; | |
813 | } | |
814 | ||
815 | /* If this is a weak symbol, and there is a real definition, the | |
816 | processor independent code will have arranged for us to see the | |
817 | real definition first, and we can just use the same value. */ | |
818 | if (h->weakdef != NULL) | |
819 | { | |
820 | BFD_ASSERT (h->weakdef->root.type == bfd_link_hash_defined | |
821 | || h->weakdef->root.type == bfd_link_hash_defweak); | |
822 | h->root.u.def.section = h->weakdef->root.u.def.section; | |
823 | h->root.u.def.value = h->weakdef->root.u.def.value; | |
824 | return true; | |
825 | } | |
826 | ||
827 | /* This is a reference to a symbol defined by a dynamic object which | |
828 | is not a function. */ | |
829 | ||
830 | /* If we are creating a shared library, we must presume that the | |
831 | only references to the symbol are via the global offset table. | |
832 | For such cases we need not do anything here; the relocations will | |
833 | be handled correctly by relocate_section. */ | |
834 | if (info->shared) | |
835 | return true; | |
836 | ||
837 | /* We must allocate the symbol in our .dynbss section, which will | |
838 | become part of the .bss section of the executable. There will be | |
839 | an entry for this symbol in the .dynsym section. The dynamic | |
840 | object will contain position independent code, so all references | |
841 | from the dynamic object to this symbol will go through the global | |
842 | offset table. The dynamic linker will use the .dynsym entry to | |
843 | determine the address it must put in the global offset table, so | |
844 | both the dynamic object and the regular object will refer to the | |
845 | same memory location for the variable. */ | |
846 | ||
847 | s = bfd_get_section_by_name (dynobj, ".dynbss"); | |
848 | BFD_ASSERT (s != NULL); | |
849 | ||
850 | /* We must generate a R_SPARC_COPY reloc to tell the dynamic linker | |
851 | to copy the initial value out of the dynamic object and into the | |
852 | runtime process image. We need to remember the offset into the | |
853 | .rel.bss section we are going to use. */ | |
854 | if ((h->root.u.def.section->flags & SEC_ALLOC) != 0) | |
855 | { | |
856 | asection *srel; | |
857 | ||
858 | srel = bfd_get_section_by_name (dynobj, ".rela.bss"); | |
859 | BFD_ASSERT (srel != NULL); | |
860 | srel->_raw_size += sizeof (Elf32_External_Rela); | |
861 | h->elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_COPY; | |
862 | } | |
863 | ||
864 | /* We need to figure out the alignment required for this symbol. I | |
865 | have no idea how ELF linkers handle this. */ | |
866 | power_of_two = bfd_log2 (h->size); | |
867 | if (power_of_two > 3) | |
868 | power_of_two = 3; | |
869 | ||
870 | /* Apply the required alignment. */ | |
871 | s->_raw_size = BFD_ALIGN (s->_raw_size, | |
872 | (bfd_size_type) (1 << power_of_two)); | |
873 | if (power_of_two > bfd_get_section_alignment (dynobj, s)) | |
874 | { | |
875 | if (! bfd_set_section_alignment (dynobj, s, power_of_two)) | |
876 | return false; | |
877 | } | |
878 | ||
879 | /* Define the symbol as being at this point in the section. */ | |
880 | h->root.u.def.section = s; | |
881 | h->root.u.def.value = s->_raw_size; | |
882 | ||
883 | /* Increment the section size to make room for the symbol. */ | |
884 | s->_raw_size += h->size; | |
885 | ||
886 | return true; | |
887 | } | |
888 | ||
889 | /* Set the sizes of the dynamic sections. */ | |
890 | ||
891 | static boolean | |
892 | elf32_sparc_size_dynamic_sections (output_bfd, info) | |
893 | bfd *output_bfd; | |
894 | struct bfd_link_info *info; | |
895 | { | |
896 | bfd *dynobj; | |
897 | asection *s; | |
898 | boolean reltext; | |
899 | boolean relplt; | |
900 | ||
901 | dynobj = elf_hash_table (info)->dynobj; | |
902 | BFD_ASSERT (dynobj != NULL); | |
903 | ||
904 | if (elf_hash_table (info)->dynamic_sections_created) | |
905 | { | |
906 | /* Set the contents of the .interp section to the interpreter. */ | |
907 | if (! info->shared) | |
908 | { | |
909 | s = bfd_get_section_by_name (dynobj, ".interp"); | |
910 | BFD_ASSERT (s != NULL); | |
911 | s->_raw_size = sizeof ELF_DYNAMIC_INTERPRETER; | |
912 | s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER; | |
913 | } | |
914 | ||
915 | /* Make space for the trailing nop in .plt. */ | |
916 | s = bfd_get_section_by_name (dynobj, ".plt"); | |
917 | BFD_ASSERT (s != NULL); | |
918 | if (s->_raw_size > 0) | |
919 | s->_raw_size += 4; | |
920 | } | |
921 | else | |
922 | { | |
923 | /* We may have created entries in the .rela.got section. | |
924 | However, if we are not creating the dynamic sections, we will | |
925 | not actually use these entries. Reset the size of .rela.got, | |
926 | which will cause it to get stripped from the output file | |
927 | below. */ | |
928 | s = bfd_get_section_by_name (dynobj, ".rela.got"); | |
929 | if (s != NULL) | |
930 | s->_raw_size = 0; | |
931 | } | |
932 | ||
933 | /* The check_relocs and adjust_dynamic_symbol entry points have | |
934 | determined the sizes of the various dynamic sections. Allocate | |
935 | memory for them. */ | |
936 | reltext = false; | |
937 | relplt = false; | |
938 | for (s = dynobj->sections; s != NULL; s = s->next) | |
939 | { | |
940 | const char *name; | |
941 | boolean strip; | |
942 | ||
943 | if ((s->flags & SEC_LINKER_CREATED) == 0) | |
944 | continue; | |
945 | ||
946 | /* It's OK to base decisions on the section name, because none | |
947 | of the dynobj section names depend upon the input files. */ | |
948 | name = bfd_get_section_name (dynobj, s); | |
949 | ||
950 | strip = false; | |
951 | ||
952 | if (strncmp (name, ".rela", 5) == 0) | |
953 | { | |
954 | if (s->_raw_size == 0) | |
955 | { | |
956 | /* If we don't need this section, strip it from the | |
957 | output file. This is to handle .rela.bss and | |
958 | .rel.plt. We must create it in | |
959 | create_dynamic_sections, because it must be created | |
960 | before the linker maps input sections to output | |
961 | sections. The linker does that before | |
962 | adjust_dynamic_symbol is called, and it is that | |
963 | function which decides whether anything needs to go | |
964 | into these sections. */ | |
965 | strip = true; | |
966 | } | |
967 | else | |
968 | { | |
969 | const char *outname; | |
970 | asection *target; | |
971 | ||
972 | /* If this relocation section applies to a read only | |
973 | section, then we probably need a DT_TEXTREL entry. */ | |
974 | outname = bfd_get_section_name (output_bfd, | |
975 | s->output_section); | |
976 | target = bfd_get_section_by_name (output_bfd, outname + 5); | |
977 | if (target != NULL | |
978 | && (target->flags & SEC_READONLY) != 0 | |
979 | && (target->flags & SEC_ALLOC) != 0) | |
980 | reltext = true; | |
981 | ||
982 | if (strcmp (name, ".rela.plt") == 0) | |
983 | relplt = true; | |
984 | ||
985 | /* We use the reloc_count field as a counter if we need | |
986 | to copy relocs into the output file. */ | |
987 | s->reloc_count = 0; | |
988 | } | |
989 | } | |
990 | else if (strcmp (name, ".plt") != 0 | |
991 | && strcmp (name, ".got") != 0) | |
992 | { | |
993 | /* It's not one of our sections, so don't allocate space. */ | |
994 | continue; | |
995 | } | |
996 | ||
997 | if (strip) | |
998 | { | |
999 | _bfd_strip_section_from_output (s); | |
1000 | continue; | |
1001 | } | |
1002 | ||
1003 | /* Allocate memory for the section contents. */ | |
1004 | s->contents = (bfd_byte *) bfd_alloc (dynobj, s->_raw_size); | |
1005 | if (s->contents == NULL && s->_raw_size != 0) | |
1006 | return false; | |
1007 | } | |
1008 | ||
1009 | if (elf_hash_table (info)->dynamic_sections_created) | |
1010 | { | |
1011 | /* Add some entries to the .dynamic section. We fill in the | |
1012 | values later, in elf32_sparc_finish_dynamic_sections, but we | |
1013 | must add the entries now so that we get the correct size for | |
1014 | the .dynamic section. The DT_DEBUG entry is filled in by the | |
1015 | dynamic linker and used by the debugger. */ | |
1016 | if (! info->shared) | |
1017 | { | |
1018 | if (! bfd_elf32_add_dynamic_entry (info, DT_DEBUG, 0)) | |
1019 | return false; | |
1020 | } | |
1021 | ||
1022 | if (relplt) | |
1023 | { | |
1024 | if (! bfd_elf32_add_dynamic_entry (info, DT_PLTGOT, 0) | |
1025 | || ! bfd_elf32_add_dynamic_entry (info, DT_PLTRELSZ, 0) | |
1026 | || ! bfd_elf32_add_dynamic_entry (info, DT_PLTREL, DT_RELA) | |
1027 | || ! bfd_elf32_add_dynamic_entry (info, DT_JMPREL, 0)) | |
1028 | return false; | |
1029 | } | |
1030 | ||
1031 | if (! bfd_elf32_add_dynamic_entry (info, DT_RELA, 0) | |
1032 | || ! bfd_elf32_add_dynamic_entry (info, DT_RELASZ, 0) | |
1033 | || ! bfd_elf32_add_dynamic_entry (info, DT_RELAENT, | |
1034 | sizeof (Elf32_External_Rela))) | |
1035 | return false; | |
1036 | ||
1037 | if (reltext) | |
1038 | { | |
1039 | if (! bfd_elf32_add_dynamic_entry (info, DT_TEXTREL, 0)) | |
1040 | return false; | |
1041 | } | |
1042 | } | |
1043 | ||
252b5132 RH |
1044 | return true; |
1045 | } | |
1046 | ||
1047 | /* Relocate a SPARC ELF section. */ | |
1048 | ||
1049 | static boolean | |
1050 | elf32_sparc_relocate_section (output_bfd, info, input_bfd, input_section, | |
1051 | contents, relocs, local_syms, local_sections) | |
1052 | bfd *output_bfd; | |
1053 | struct bfd_link_info *info; | |
1054 | bfd *input_bfd; | |
1055 | asection *input_section; | |
1056 | bfd_byte *contents; | |
1057 | Elf_Internal_Rela *relocs; | |
1058 | Elf_Internal_Sym *local_syms; | |
1059 | asection **local_sections; | |
1060 | { | |
1061 | bfd *dynobj; | |
1062 | Elf_Internal_Shdr *symtab_hdr; | |
1063 | struct elf_link_hash_entry **sym_hashes; | |
1064 | bfd_vma *local_got_offsets; | |
1065 | bfd_vma got_base; | |
1066 | asection *sgot; | |
1067 | asection *splt; | |
1068 | asection *sreloc; | |
1069 | Elf_Internal_Rela *rel; | |
1070 | Elf_Internal_Rela *relend; | |
1071 | ||
1072 | dynobj = elf_hash_table (info)->dynobj; | |
1073 | symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr; | |
1074 | sym_hashes = elf_sym_hashes (input_bfd); | |
1075 | local_got_offsets = elf_local_got_offsets (input_bfd); | |
1076 | ||
1077 | if (elf_hash_table (info)->hgot == NULL) | |
1078 | got_base = 0; | |
1079 | else | |
1080 | got_base = elf_hash_table (info)->hgot->root.u.def.value; | |
1081 | ||
1082 | sgot = NULL; | |
1083 | splt = NULL; | |
1084 | sreloc = NULL; | |
1085 | ||
1086 | rel = relocs; | |
1087 | relend = relocs + input_section->reloc_count; | |
1088 | for (; rel < relend; rel++) | |
1089 | { | |
1090 | int r_type; | |
1091 | reloc_howto_type *howto; | |
1092 | unsigned long r_symndx; | |
1093 | struct elf_link_hash_entry *h; | |
1094 | Elf_Internal_Sym *sym; | |
1095 | asection *sec; | |
1096 | bfd_vma relocation; | |
1097 | bfd_reloc_status_type r; | |
1098 | ||
1099 | r_type = ELF32_R_TYPE (rel->r_info); | |
1100 | ||
1101 | if (r_type == R_SPARC_GNU_VTINHERIT | |
1102 | || r_type == R_SPARC_GNU_VTENTRY) | |
1103 | continue; | |
1104 | ||
60dac299 | 1105 | if (r_type < 0 || r_type >= (int) R_SPARC_max_std) |
252b5132 RH |
1106 | { |
1107 | bfd_set_error (bfd_error_bad_value); | |
1108 | return false; | |
1109 | } | |
1110 | howto = _bfd_sparc_elf_howto_table + r_type; | |
1111 | ||
1112 | r_symndx = ELF32_R_SYM (rel->r_info); | |
1113 | ||
1114 | if (info->relocateable) | |
1115 | { | |
1116 | /* This is a relocateable link. We don't have to change | |
1117 | anything, unless the reloc is against a section symbol, | |
1118 | in which case we have to adjust according to where the | |
1119 | section symbol winds up in the output section. */ | |
1120 | if (r_symndx < symtab_hdr->sh_info) | |
1121 | { | |
1122 | sym = local_syms + r_symndx; | |
1123 | if (ELF_ST_TYPE (sym->st_info) == STT_SECTION) | |
1124 | { | |
1125 | sec = local_sections[r_symndx]; | |
1126 | rel->r_addend += sec->output_offset + sym->st_value; | |
1127 | } | |
1128 | } | |
1129 | ||
1130 | continue; | |
1131 | } | |
1132 | ||
1133 | /* This is a final link. */ | |
1134 | h = NULL; | |
1135 | sym = NULL; | |
1136 | sec = NULL; | |
1137 | if (r_symndx < symtab_hdr->sh_info) | |
1138 | { | |
1139 | sym = local_syms + r_symndx; | |
1140 | sec = local_sections[r_symndx]; | |
1141 | relocation = (sec->output_section->vma | |
1142 | + sec->output_offset | |
1143 | + sym->st_value); | |
1144 | } | |
1145 | else | |
1146 | { | |
1147 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
1148 | while (h->root.type == bfd_link_hash_indirect | |
1149 | || h->root.type == bfd_link_hash_warning) | |
1150 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
1151 | if (h->root.type == bfd_link_hash_defined | |
1152 | || h->root.type == bfd_link_hash_defweak) | |
1153 | { | |
1154 | sec = h->root.u.def.section; | |
1155 | if ((r_type == R_SPARC_WPLT30 | |
1156 | && h->plt.offset != (bfd_vma) -1) | |
1157 | || ((r_type == R_SPARC_GOT10 | |
1158 | || r_type == R_SPARC_GOT13 | |
1159 | || r_type == R_SPARC_GOT22) | |
1160 | && elf_hash_table (info)->dynamic_sections_created | |
1161 | && (! info->shared | |
1162 | || (! info->symbolic && h->dynindx != -1) | |
1163 | || (h->elf_link_hash_flags | |
1164 | & ELF_LINK_HASH_DEF_REGULAR) == 0)) | |
1165 | || (info->shared | |
1166 | && ((! info->symbolic && h->dynindx != -1) | |
1167 | || (h->elf_link_hash_flags | |
1168 | & ELF_LINK_HASH_DEF_REGULAR) == 0) | |
1169 | && (r_type == R_SPARC_8 | |
1170 | || r_type == R_SPARC_16 | |
1171 | || r_type == R_SPARC_32 | |
1172 | || r_type == R_SPARC_DISP8 | |
1173 | || r_type == R_SPARC_DISP16 | |
1174 | || r_type == R_SPARC_DISP32 | |
1175 | || r_type == R_SPARC_WDISP30 | |
1176 | || r_type == R_SPARC_WDISP22 | |
1177 | || r_type == R_SPARC_WDISP19 | |
1178 | || r_type == R_SPARC_WDISP16 | |
1179 | || r_type == R_SPARC_HI22 | |
1180 | || r_type == R_SPARC_22 | |
1181 | || r_type == R_SPARC_13 | |
1182 | || r_type == R_SPARC_LO10 | |
1183 | || r_type == R_SPARC_UA32 | |
1184 | || ((r_type == R_SPARC_PC10 | |
1185 | || r_type == R_SPARC_PC22) | |
1186 | && strcmp (h->root.root.string, | |
1187 | "_GLOBAL_OFFSET_TABLE_") != 0)))) | |
1188 | { | |
1189 | /* In these cases, we don't need the relocation | |
1190 | value. We check specially because in some | |
1191 | obscure cases sec->output_section will be NULL. */ | |
1192 | relocation = 0; | |
1193 | } | |
1194 | else | |
1195 | relocation = (h->root.u.def.value | |
1196 | + sec->output_section->vma | |
1197 | + sec->output_offset); | |
1198 | } | |
1199 | else if (h->root.type == bfd_link_hash_undefweak) | |
1200 | relocation = 0; | |
1201 | else if (info->shared && !info->symbolic && !info->no_undefined) | |
1202 | relocation = 0; | |
1203 | else | |
1204 | { | |
1205 | if (! ((*info->callbacks->undefined_symbol) | |
1206 | (info, h->root.root.string, input_bfd, | |
1207 | input_section, rel->r_offset))) | |
1208 | return false; | |
1209 | relocation = 0; | |
1210 | } | |
1211 | } | |
1212 | ||
1213 | switch (r_type) | |
1214 | { | |
1215 | case R_SPARC_GOT10: | |
1216 | case R_SPARC_GOT13: | |
1217 | case R_SPARC_GOT22: | |
1218 | /* Relocation is to the entry for this symbol in the global | |
1219 | offset table. */ | |
1220 | if (sgot == NULL) | |
1221 | { | |
1222 | sgot = bfd_get_section_by_name (dynobj, ".got"); | |
1223 | BFD_ASSERT (sgot != NULL); | |
1224 | } | |
1225 | ||
1226 | if (h != NULL) | |
1227 | { | |
1228 | bfd_vma off; | |
1229 | ||
1230 | off = h->got.offset; | |
1231 | BFD_ASSERT (off != (bfd_vma) -1); | |
1232 | ||
1233 | if (! elf_hash_table (info)->dynamic_sections_created | |
1234 | || (info->shared | |
1235 | && (info->symbolic || h->dynindx == -1) | |
1236 | && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR))) | |
1237 | { | |
1238 | /* This is actually a static link, or it is a | |
1239 | -Bsymbolic link and the symbol is defined | |
1240 | locally, or the symbol was forced to be local | |
1241 | because of a version file. We must initialize | |
1242 | this entry in the global offset table. Since the | |
1243 | offset must always be a multiple of 4, we use the | |
1244 | least significant bit to record whether we have | |
1245 | initialized it already. | |
1246 | ||
1247 | When doing a dynamic link, we create a .rela.got | |
1248 | relocation entry to initialize the value. This | |
1249 | is done in the finish_dynamic_symbol routine. */ | |
1250 | if ((off & 1) != 0) | |
1251 | off &= ~1; | |
1252 | else | |
1253 | { | |
1254 | bfd_put_32 (output_bfd, relocation, | |
1255 | sgot->contents + off); | |
1256 | h->got.offset |= 1; | |
1257 | } | |
1258 | } | |
1259 | ||
1260 | relocation = sgot->output_offset + off - got_base; | |
1261 | } | |
1262 | else | |
1263 | { | |
1264 | bfd_vma off; | |
1265 | ||
1266 | BFD_ASSERT (local_got_offsets != NULL | |
1267 | && local_got_offsets[r_symndx] != (bfd_vma) -1); | |
1268 | ||
1269 | off = local_got_offsets[r_symndx]; | |
1270 | ||
1271 | /* The offset must always be a multiple of 4. We use | |
1272 | the least significant bit to record whether we have | |
1273 | already processed this entry. */ | |
1274 | if ((off & 1) != 0) | |
1275 | off &= ~1; | |
1276 | else | |
1277 | { | |
1278 | bfd_put_32 (output_bfd, relocation, sgot->contents + off); | |
1279 | ||
1280 | if (info->shared) | |
1281 | { | |
1282 | asection *srelgot; | |
1283 | Elf_Internal_Rela outrel; | |
1284 | ||
1285 | /* We need to generate a R_SPARC_RELATIVE reloc | |
1286 | for the dynamic linker. */ | |
1287 | srelgot = bfd_get_section_by_name (dynobj, ".rela.got"); | |
1288 | BFD_ASSERT (srelgot != NULL); | |
1289 | ||
1290 | outrel.r_offset = (sgot->output_section->vma | |
1291 | + sgot->output_offset | |
1292 | + off); | |
1293 | outrel.r_info = ELF32_R_INFO (0, R_SPARC_RELATIVE); | |
1294 | outrel.r_addend = 0; | |
1295 | bfd_elf32_swap_reloca_out (output_bfd, &outrel, | |
1296 | (((Elf32_External_Rela *) | |
1297 | srelgot->contents) | |
1298 | + srelgot->reloc_count)); | |
1299 | ++srelgot->reloc_count; | |
1300 | } | |
1301 | ||
1302 | local_got_offsets[r_symndx] |= 1; | |
1303 | } | |
1304 | ||
1305 | relocation = sgot->output_offset + off - got_base; | |
1306 | } | |
1307 | ||
1308 | break; | |
1309 | ||
1310 | case R_SPARC_WPLT30: | |
1311 | /* Relocation is to the entry for this symbol in the | |
1312 | procedure linkage table. */ | |
1313 | ||
1314 | /* The Solaris native assembler will generate a WPLT30 reloc | |
1315 | for a local symbol if you assemble a call from one | |
1316 | section to another when using -K pic. We treat it as | |
1317 | WDISP30. */ | |
1318 | if (h == NULL) | |
1319 | break; | |
1320 | ||
1321 | if (h->plt.offset == (bfd_vma) -1) | |
1322 | { | |
1323 | /* We didn't make a PLT entry for this symbol. This | |
1324 | happens when statically linking PIC code, or when | |
1325 | using -Bsymbolic. */ | |
1326 | break; | |
1327 | } | |
1328 | ||
1329 | if (splt == NULL) | |
1330 | { | |
1331 | splt = bfd_get_section_by_name (dynobj, ".plt"); | |
1332 | BFD_ASSERT (splt != NULL); | |
1333 | } | |
1334 | ||
1335 | relocation = (splt->output_section->vma | |
1336 | + splt->output_offset | |
1337 | + h->plt.offset); | |
1338 | break; | |
1339 | ||
1340 | case R_SPARC_PC10: | |
1341 | case R_SPARC_PC22: | |
1342 | if (h != NULL | |
1343 | && strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0) | |
1344 | break; | |
1345 | /* Fall through. */ | |
1346 | case R_SPARC_DISP8: | |
1347 | case R_SPARC_DISP16: | |
1348 | case R_SPARC_DISP32: | |
1349 | case R_SPARC_WDISP30: | |
1350 | case R_SPARC_WDISP22: | |
1351 | case R_SPARC_WDISP19: | |
1352 | case R_SPARC_WDISP16: | |
1353 | if (h == NULL | |
1354 | || (info->symbolic | |
1355 | && (h->elf_link_hash_flags | |
1356 | & ELF_LINK_HASH_DEF_REGULAR) != 0)) | |
1357 | break; | |
1358 | /* Fall through. */ | |
1359 | case R_SPARC_8: | |
1360 | case R_SPARC_16: | |
1361 | case R_SPARC_32: | |
1362 | case R_SPARC_HI22: | |
1363 | case R_SPARC_22: | |
1364 | case R_SPARC_13: | |
1365 | case R_SPARC_LO10: | |
1366 | case R_SPARC_UA32: | |
1367 | if (info->shared) | |
1368 | { | |
1369 | Elf_Internal_Rela outrel; | |
1370 | boolean skip; | |
1371 | ||
1372 | /* When generating a shared object, these relocations | |
1373 | are copied into the output file to be resolved at run | |
1374 | time. */ | |
1375 | ||
1376 | if (sreloc == NULL) | |
1377 | { | |
1378 | const char *name; | |
1379 | ||
1380 | name = (bfd_elf_string_from_elf_section | |
1381 | (input_bfd, | |
1382 | elf_elfheader (input_bfd)->e_shstrndx, | |
1383 | elf_section_data (input_section)->rel_hdr.sh_name)); | |
1384 | if (name == NULL) | |
1385 | return false; | |
1386 | ||
1387 | BFD_ASSERT (strncmp (name, ".rela", 5) == 0 | |
1388 | && strcmp (bfd_get_section_name (input_bfd, | |
1389 | input_section), | |
1390 | name + 5) == 0); | |
1391 | ||
1392 | sreloc = bfd_get_section_by_name (dynobj, name); | |
1393 | BFD_ASSERT (sreloc != NULL); | |
1394 | } | |
1395 | ||
1396 | skip = false; | |
1397 | ||
1398 | if (elf_section_data (input_section)->stab_info == NULL) | |
1399 | outrel.r_offset = rel->r_offset; | |
1400 | else | |
1401 | { | |
1402 | bfd_vma off; | |
1403 | ||
1404 | off = (_bfd_stab_section_offset | |
1405 | (output_bfd, &elf_hash_table (info)->stab_info, | |
1406 | input_section, | |
1407 | &elf_section_data (input_section)->stab_info, | |
1408 | rel->r_offset)); | |
1409 | if (off == (bfd_vma) -1) | |
1410 | skip = true; | |
1411 | outrel.r_offset = off; | |
1412 | } | |
1413 | ||
1414 | outrel.r_offset += (input_section->output_section->vma | |
1415 | + input_section->output_offset); | |
1416 | ||
1417 | if (skip) | |
1418 | memset (&outrel, 0, sizeof outrel); | |
1419 | /* h->dynindx may be -1 if the symbol was marked to | |
1420 | become local. */ | |
1421 | else if (h != NULL | |
1422 | && ((! info->symbolic && h->dynindx != -1) | |
1423 | || (h->elf_link_hash_flags | |
1424 | & ELF_LINK_HASH_DEF_REGULAR) == 0)) | |
1425 | { | |
1426 | BFD_ASSERT (h->dynindx != -1); | |
1427 | outrel.r_info = ELF32_R_INFO (h->dynindx, r_type); | |
1428 | outrel.r_addend = rel->r_addend; | |
1429 | } | |
1430 | else | |
1431 | { | |
1432 | if (r_type == R_SPARC_32) | |
1433 | { | |
1434 | outrel.r_info = ELF32_R_INFO (0, R_SPARC_RELATIVE); | |
1435 | outrel.r_addend = relocation + rel->r_addend; | |
1436 | } | |
1437 | else | |
1438 | { | |
1439 | long indx; | |
1440 | ||
1441 | if (h == NULL) | |
1442 | sec = local_sections[r_symndx]; | |
1443 | else | |
1444 | { | |
1445 | BFD_ASSERT (h->root.type == bfd_link_hash_defined | |
1446 | || (h->root.type | |
1447 | == bfd_link_hash_defweak)); | |
1448 | sec = h->root.u.def.section; | |
1449 | } | |
1450 | if (sec != NULL && bfd_is_abs_section (sec)) | |
1451 | indx = 0; | |
1452 | else if (sec == NULL || sec->owner == NULL) | |
1453 | { | |
1454 | bfd_set_error (bfd_error_bad_value); | |
1455 | return false; | |
1456 | } | |
1457 | else | |
1458 | { | |
1459 | asection *osec; | |
1460 | ||
1461 | osec = sec->output_section; | |
1462 | indx = elf_section_data (osec)->dynindx; | |
1463 | ||
1464 | /* FIXME: we really should be able to link non-pic | |
1465 | shared libraries. */ | |
1466 | if (indx == 0) | |
1467 | { | |
1468 | BFD_FAIL (); | |
1469 | (*_bfd_error_handler) | |
1470 | (_("%s: probably compiled without -fPIC?"), | |
1471 | bfd_get_filename (input_bfd)); | |
1472 | bfd_set_error (bfd_error_bad_value); | |
1473 | return false; | |
1474 | } | |
1475 | } | |
1476 | ||
1477 | outrel.r_info = ELF32_R_INFO (indx, r_type); | |
1478 | ||
1479 | /* For non-RELATIVE dynamic relocations, we keep the | |
1480 | same symbol, and so generally the same addend. But | |
1481 | we do need to adjust those relocations referencing | |
1482 | sections. */ | |
1483 | outrel.r_addend = rel->r_addend; | |
1484 | if (r_symndx < symtab_hdr->sh_info | |
1485 | && ELF_ST_TYPE (sym->st_info) == STT_SECTION) | |
1486 | outrel.r_addend += sec->output_offset+sym->st_value; | |
1487 | } | |
1488 | } | |
1489 | ||
1490 | bfd_elf32_swap_reloca_out (output_bfd, &outrel, | |
1491 | (((Elf32_External_Rela *) | |
1492 | sreloc->contents) | |
1493 | + sreloc->reloc_count)); | |
1494 | ++sreloc->reloc_count; | |
1495 | ||
1496 | /* This reloc will be computed at runtime, so there's no | |
1497 | need to do anything now, unless this is a RELATIVE | |
1498 | reloc in an unallocated section. */ | |
1499 | if (skip | |
1500 | || (input_section->flags & SEC_ALLOC) != 0 | |
1501 | || ELF32_R_TYPE (outrel.r_info) != R_SPARC_RELATIVE) | |
1502 | continue; | |
1503 | } | |
1504 | break; | |
1505 | ||
1506 | default: | |
1507 | break; | |
1508 | } | |
1509 | ||
1510 | if (r_type == R_SPARC_WDISP16) | |
1511 | { | |
1512 | bfd_vma x; | |
1513 | ||
1514 | relocation += rel->r_addend; | |
1515 | relocation -= (input_section->output_section->vma | |
1516 | + input_section->output_offset); | |
1517 | relocation -= rel->r_offset; | |
1518 | ||
1519 | x = bfd_get_32 (input_bfd, contents + rel->r_offset); | |
1520 | x |= ((((relocation >> 2) & 0xc000) << 6) | |
1521 | | ((relocation >> 2) & 0x3fff)); | |
1522 | bfd_put_32 (input_bfd, x, contents + rel->r_offset); | |
1523 | ||
1524 | if ((bfd_signed_vma) relocation < - 0x40000 | |
1525 | || (bfd_signed_vma) relocation > 0x3ffff) | |
1526 | r = bfd_reloc_overflow; | |
1527 | else | |
1528 | r = bfd_reloc_ok; | |
1529 | } | |
1530 | else if (r_type == R_SPARC_REV32) | |
1531 | { | |
1532 | bfd_vma x; | |
1533 | ||
1534 | relocation = relocation + rel->r_addend; | |
1535 | ||
1536 | x = bfd_get_32 (input_bfd, contents + rel->r_offset); | |
1537 | x = x + relocation; | |
1538 | bfd_putl32 (/*input_bfd,*/ x, contents + rel->r_offset); | |
1539 | r = bfd_reloc_ok; | |
1540 | } | |
1541 | else | |
1542 | r = _bfd_final_link_relocate (howto, input_bfd, input_section, | |
1543 | contents, rel->r_offset, | |
1544 | relocation, rel->r_addend); | |
1545 | ||
1546 | ||
1547 | if (r != bfd_reloc_ok) | |
1548 | { | |
1549 | switch (r) | |
1550 | { | |
1551 | default: | |
1552 | case bfd_reloc_outofrange: | |
1553 | abort (); | |
1554 | case bfd_reloc_overflow: | |
1555 | { | |
1556 | const char *name; | |
1557 | ||
1558 | if (h != NULL) | |
1559 | name = h->root.root.string; | |
1560 | else | |
1561 | { | |
1562 | name = bfd_elf_string_from_elf_section (input_bfd, | |
1563 | symtab_hdr->sh_link, | |
1564 | sym->st_name); | |
1565 | if (name == NULL) | |
1566 | return false; | |
1567 | if (*name == '\0') | |
1568 | name = bfd_section_name (input_bfd, sec); | |
1569 | } | |
1570 | if (! ((*info->callbacks->reloc_overflow) | |
1571 | (info, name, howto->name, (bfd_vma) 0, | |
1572 | input_bfd, input_section, rel->r_offset))) | |
1573 | return false; | |
1574 | } | |
1575 | break; | |
1576 | } | |
1577 | } | |
1578 | } | |
1579 | ||
1580 | return true; | |
1581 | } | |
1582 | ||
1583 | /* Finish up dynamic symbol handling. We set the contents of various | |
1584 | dynamic sections here. */ | |
1585 | ||
1586 | static boolean | |
1587 | elf32_sparc_finish_dynamic_symbol (output_bfd, info, h, sym) | |
1588 | bfd *output_bfd; | |
1589 | struct bfd_link_info *info; | |
1590 | struct elf_link_hash_entry *h; | |
1591 | Elf_Internal_Sym *sym; | |
1592 | { | |
1593 | bfd *dynobj; | |
1594 | ||
1595 | dynobj = elf_hash_table (info)->dynobj; | |
1596 | ||
1597 | if (h->plt.offset != (bfd_vma) -1) | |
1598 | { | |
1599 | asection *splt; | |
1600 | asection *srela; | |
1601 | Elf_Internal_Rela rela; | |
1602 | ||
1603 | /* This symbol has an entry in the procedure linkage table. Set | |
1604 | it up. */ | |
1605 | ||
1606 | BFD_ASSERT (h->dynindx != -1); | |
1607 | ||
1608 | splt = bfd_get_section_by_name (dynobj, ".plt"); | |
1609 | srela = bfd_get_section_by_name (dynobj, ".rela.plt"); | |
1610 | BFD_ASSERT (splt != NULL && srela != NULL); | |
1611 | ||
1612 | /* Fill in the entry in the procedure linkage table. */ | |
1613 | bfd_put_32 (output_bfd, | |
1614 | PLT_ENTRY_WORD0 + h->plt.offset, | |
1615 | splt->contents + h->plt.offset); | |
1616 | bfd_put_32 (output_bfd, | |
1617 | (PLT_ENTRY_WORD1 | |
1618 | + (((- (h->plt.offset + 4)) >> 2) & 0x3fffff)), | |
1619 | splt->contents + h->plt.offset + 4); | |
1620 | bfd_put_32 (output_bfd, PLT_ENTRY_WORD2, | |
1621 | splt->contents + h->plt.offset + 8); | |
1622 | ||
1623 | /* Fill in the entry in the .rela.plt section. */ | |
1624 | rela.r_offset = (splt->output_section->vma | |
1625 | + splt->output_offset | |
1626 | + h->plt.offset); | |
1627 | rela.r_info = ELF32_R_INFO (h->dynindx, R_SPARC_JMP_SLOT); | |
1628 | rela.r_addend = 0; | |
1629 | bfd_elf32_swap_reloca_out (output_bfd, &rela, | |
1630 | ((Elf32_External_Rela *) srela->contents | |
1631 | + h->plt.offset / PLT_ENTRY_SIZE - 4)); | |
1632 | ||
1633 | if ((h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0) | |
1634 | { | |
1635 | /* Mark the symbol as undefined, rather than as defined in | |
1636 | the .plt section. Leave the value alone. */ | |
1637 | sym->st_shndx = SHN_UNDEF; | |
1638 | } | |
1639 | } | |
1640 | ||
1641 | if (h->got.offset != (bfd_vma) -1) | |
1642 | { | |
1643 | asection *sgot; | |
1644 | asection *srela; | |
1645 | Elf_Internal_Rela rela; | |
1646 | ||
1647 | /* This symbol has an entry in the global offset table. Set it | |
1648 | up. */ | |
1649 | ||
1650 | sgot = bfd_get_section_by_name (dynobj, ".got"); | |
1651 | srela = bfd_get_section_by_name (dynobj, ".rela.got"); | |
1652 | BFD_ASSERT (sgot != NULL && srela != NULL); | |
1653 | ||
1654 | rela.r_offset = (sgot->output_section->vma | |
1655 | + sgot->output_offset | |
1656 | + (h->got.offset &~ 1)); | |
1657 | ||
1658 | /* If this is a -Bsymbolic link, and the symbol is defined | |
1659 | locally, we just want to emit a RELATIVE reloc. Likewise if | |
1660 | the symbol was forced to be local because of a version file. | |
1661 | The entry in the global offset table will already have been | |
1662 | initialized in the relocate_section function. */ | |
1663 | if (info->shared | |
1664 | && (info->symbolic || h->dynindx == -1) | |
1665 | && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR)) | |
1666 | rela.r_info = ELF32_R_INFO (0, R_SPARC_RELATIVE); | |
1667 | else | |
1668 | { | |
1669 | bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + h->got.offset); | |
1670 | rela.r_info = ELF32_R_INFO (h->dynindx, R_SPARC_GLOB_DAT); | |
1671 | } | |
1672 | ||
1673 | rela.r_addend = 0; | |
1674 | bfd_elf32_swap_reloca_out (output_bfd, &rela, | |
1675 | ((Elf32_External_Rela *) srela->contents | |
1676 | + srela->reloc_count)); | |
1677 | ++srela->reloc_count; | |
1678 | } | |
1679 | ||
1680 | if ((h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_COPY) != 0) | |
1681 | { | |
1682 | asection *s; | |
1683 | Elf_Internal_Rela rela; | |
1684 | ||
1685 | /* This symbols needs a copy reloc. Set it up. */ | |
1686 | ||
1687 | BFD_ASSERT (h->dynindx != -1); | |
1688 | ||
1689 | s = bfd_get_section_by_name (h->root.u.def.section->owner, | |
1690 | ".rela.bss"); | |
1691 | BFD_ASSERT (s != NULL); | |
1692 | ||
1693 | rela.r_offset = (h->root.u.def.value | |
1694 | + h->root.u.def.section->output_section->vma | |
1695 | + h->root.u.def.section->output_offset); | |
1696 | rela.r_info = ELF32_R_INFO (h->dynindx, R_SPARC_COPY); | |
1697 | rela.r_addend = 0; | |
1698 | bfd_elf32_swap_reloca_out (output_bfd, &rela, | |
1699 | ((Elf32_External_Rela *) s->contents | |
1700 | + s->reloc_count)); | |
1701 | ++s->reloc_count; | |
1702 | } | |
1703 | ||
1704 | /* Mark some specially defined symbols as absolute. */ | |
1705 | if (strcmp (h->root.root.string, "_DYNAMIC") == 0 | |
1706 | || strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0 | |
1707 | || strcmp (h->root.root.string, "_PROCEDURE_LINKAGE_TABLE_") == 0) | |
1708 | sym->st_shndx = SHN_ABS; | |
1709 | ||
1710 | return true; | |
1711 | } | |
1712 | ||
1713 | /* Finish up the dynamic sections. */ | |
1714 | ||
1715 | static boolean | |
1716 | elf32_sparc_finish_dynamic_sections (output_bfd, info) | |
1717 | bfd *output_bfd; | |
1718 | struct bfd_link_info *info; | |
1719 | { | |
1720 | bfd *dynobj; | |
1721 | asection *sdyn; | |
1722 | asection *sgot; | |
1723 | ||
1724 | dynobj = elf_hash_table (info)->dynobj; | |
1725 | ||
1726 | sdyn = bfd_get_section_by_name (dynobj, ".dynamic"); | |
1727 | ||
1728 | if (elf_hash_table (info)->dynamic_sections_created) | |
1729 | { | |
1730 | asection *splt; | |
1731 | Elf32_External_Dyn *dyncon, *dynconend; | |
1732 | ||
1733 | splt = bfd_get_section_by_name (dynobj, ".plt"); | |
1734 | BFD_ASSERT (splt != NULL && sdyn != NULL); | |
1735 | ||
1736 | dyncon = (Elf32_External_Dyn *) sdyn->contents; | |
1737 | dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->_raw_size); | |
1738 | for (; dyncon < dynconend; dyncon++) | |
1739 | { | |
1740 | Elf_Internal_Dyn dyn; | |
1741 | const char *name; | |
1742 | boolean size; | |
1743 | ||
1744 | bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn); | |
1745 | ||
1746 | switch (dyn.d_tag) | |
1747 | { | |
1748 | case DT_PLTGOT: name = ".plt"; size = false; break; | |
1749 | case DT_PLTRELSZ: name = ".rela.plt"; size = true; break; | |
1750 | case DT_JMPREL: name = ".rela.plt"; size = false; break; | |
1751 | default: name = NULL; size = false; break; | |
1752 | } | |
1753 | ||
1754 | if (name != NULL) | |
1755 | { | |
1756 | asection *s; | |
1757 | ||
1758 | s = bfd_get_section_by_name (output_bfd, name); | |
1759 | if (s == NULL) | |
1760 | dyn.d_un.d_val = 0; | |
1761 | else | |
1762 | { | |
1763 | if (! size) | |
1764 | dyn.d_un.d_ptr = s->vma; | |
1765 | else | |
1766 | { | |
1767 | if (s->_cooked_size != 0) | |
1768 | dyn.d_un.d_val = s->_cooked_size; | |
1769 | else | |
1770 | dyn.d_un.d_val = s->_raw_size; | |
1771 | } | |
1772 | } | |
1773 | bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon); | |
1774 | } | |
1775 | } | |
1776 | ||
1777 | /* Clear the first four entries in the procedure linkage table, | |
1778 | and put a nop in the last four bytes. */ | |
1779 | if (splt->_raw_size > 0) | |
1780 | { | |
1781 | memset (splt->contents, 0, 4 * PLT_ENTRY_SIZE); | |
1782 | bfd_put_32 (output_bfd, SPARC_NOP, | |
1783 | splt->contents + splt->_raw_size - 4); | |
1784 | } | |
1785 | ||
1786 | elf_section_data (splt->output_section)->this_hdr.sh_entsize = | |
1787 | PLT_ENTRY_SIZE; | |
1788 | } | |
1789 | ||
1790 | /* Set the first entry in the global offset table to the address of | |
1791 | the dynamic section. */ | |
1792 | sgot = bfd_get_section_by_name (dynobj, ".got"); | |
1793 | BFD_ASSERT (sgot != NULL); | |
1794 | if (sgot->_raw_size > 0) | |
1795 | { | |
1796 | if (sdyn == NULL) | |
1797 | bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents); | |
1798 | else | |
1799 | bfd_put_32 (output_bfd, | |
1800 | sdyn->output_section->vma + sdyn->output_offset, | |
1801 | sgot->contents); | |
1802 | } | |
1803 | ||
1804 | elf_section_data (sgot->output_section)->this_hdr.sh_entsize = 4; | |
1805 | ||
252b5132 RH |
1806 | return true; |
1807 | } | |
1808 | \f | |
1809 | /* Functions for dealing with the e_flags field. | |
1810 | ||
1811 | We don't define set_private_flags or copy_private_bfd_data because | |
1812 | the only currently defined values are based on the bfd mach number, | |
1813 | so we use the latter instead and defer setting e_flags until the | |
1814 | file is written out. */ | |
1815 | ||
1816 | /* Merge backend specific data from an object file to the output | |
1817 | object file when linking. */ | |
1818 | ||
1819 | static boolean | |
1820 | elf32_sparc_merge_private_bfd_data (ibfd, obfd) | |
1821 | bfd *ibfd; | |
1822 | bfd *obfd; | |
1823 | { | |
1824 | boolean error; | |
5f771d47 ILT |
1825 | /* FIXME: This should not be static. */ |
1826 | static unsigned long previous_ibfd_e_flags = (unsigned long) -1; | |
252b5132 RH |
1827 | |
1828 | if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour | |
1829 | || bfd_get_flavour (obfd) != bfd_target_elf_flavour) | |
1830 | return true; | |
1831 | ||
1832 | error = false; | |
1833 | ||
1834 | #if 0 | |
1835 | /* ??? The native linker doesn't do this so we can't (otherwise gcc would | |
1836 | have to know which linker is being used). Instead, the native linker | |
1837 | bumps up the architecture level when it has to. However, I still think | |
1838 | warnings like these are good, so it would be nice to have them turned on | |
1839 | by some option. */ | |
1840 | ||
1841 | /* If the output machine is normal sparc, we can't allow v9 input files. */ | |
1842 | if (bfd_get_mach (obfd) == bfd_mach_sparc | |
1843 | && (bfd_get_mach (ibfd) == bfd_mach_sparc_v8plus | |
1844 | || bfd_get_mach (ibfd) == bfd_mach_sparc_v8plusa)) | |
1845 | { | |
1846 | error = true; | |
1847 | (*_bfd_error_handler) | |
1848 | (_("%s: compiled for a v8plus system and target is v8"), | |
1849 | bfd_get_filename (ibfd)); | |
1850 | } | |
1851 | /* If the output machine is v9, we can't allow v9+vis input files. */ | |
1852 | if (bfd_get_mach (obfd) == bfd_mach_sparc_v8plus | |
1853 | && bfd_get_mach (ibfd) == bfd_mach_sparc_v8plusa) | |
1854 | { | |
1855 | error = true; | |
1856 | (*_bfd_error_handler) | |
1857 | (_("%s: compiled for a v8plusa system and target is v8plus"), | |
1858 | bfd_get_filename (ibfd)); | |
1859 | } | |
1860 | #else | |
1861 | if (bfd_get_mach (ibfd) >= bfd_mach_sparc_v9) | |
1862 | { | |
1863 | error = true; | |
1864 | (*_bfd_error_handler) | |
1865 | (_("%s: compiled for a 64 bit system and target is 32 bit"), | |
1866 | bfd_get_filename (ibfd)); | |
1867 | } | |
1868 | else if (bfd_get_mach (obfd) < bfd_get_mach (ibfd)) | |
1869 | bfd_set_arch_mach (obfd, bfd_arch_sparc, bfd_get_mach (ibfd)); | |
1870 | #endif | |
1871 | ||
1872 | if (((elf_elfheader (ibfd)->e_flags & EF_SPARC_LEDATA) | |
1873 | != previous_ibfd_e_flags) | |
5f771d47 | 1874 | && previous_ibfd_e_flags != (unsigned long) -1) |
252b5132 RH |
1875 | { |
1876 | (*_bfd_error_handler) | |
1877 | (_("%s: linking little endian files with big endian files"), | |
1878 | bfd_get_filename (ibfd)); | |
1879 | error = true; | |
1880 | } | |
1881 | previous_ibfd_e_flags = elf_elfheader (ibfd)->e_flags & EF_SPARC_LEDATA; | |
1882 | ||
1883 | if (error) | |
1884 | { | |
1885 | bfd_set_error (bfd_error_bad_value); | |
1886 | return false; | |
1887 | } | |
1888 | ||
1889 | return true; | |
1890 | } | |
1891 | \f | |
1892 | /* Set the right machine number. */ | |
1893 | ||
1894 | static boolean | |
1895 | elf32_sparc_object_p (abfd) | |
1896 | bfd *abfd; | |
1897 | { | |
1898 | if (elf_elfheader (abfd)->e_machine == EM_SPARC32PLUS) | |
1899 | { | |
1900 | if (elf_elfheader (abfd)->e_flags & EF_SPARC_SUN_US1) | |
1901 | return bfd_default_set_arch_mach (abfd, bfd_arch_sparc, | |
1902 | bfd_mach_sparc_v8plusa); | |
1903 | else if (elf_elfheader (abfd)->e_flags & EF_SPARC_32PLUS) | |
1904 | return bfd_default_set_arch_mach (abfd, bfd_arch_sparc, | |
1905 | bfd_mach_sparc_v8plus); | |
1906 | else | |
1907 | return false; | |
1908 | } | |
1909 | else if (elf_elfheader (abfd)->e_flags & EF_SPARC_LEDATA) | |
1910 | return bfd_default_set_arch_mach (abfd, bfd_arch_sparc, | |
1911 | bfd_mach_sparc_sparclite_le); | |
1912 | else | |
1913 | return bfd_default_set_arch_mach (abfd, bfd_arch_sparc, bfd_mach_sparc); | |
1914 | } | |
1915 | ||
1916 | /* The final processing done just before writing out the object file. | |
1917 | We need to set the e_machine field appropriately. */ | |
1918 | ||
1919 | static void | |
1920 | elf32_sparc_final_write_processing (abfd, linker) | |
1921 | bfd *abfd; | |
5f771d47 | 1922 | boolean linker ATTRIBUTE_UNUSED; |
252b5132 RH |
1923 | { |
1924 | switch (bfd_get_mach (abfd)) | |
1925 | { | |
1926 | case bfd_mach_sparc : | |
1927 | break; /* nothing to do */ | |
1928 | case bfd_mach_sparc_v8plus : | |
1929 | elf_elfheader (abfd)->e_machine = EM_SPARC32PLUS; | |
1930 | elf_elfheader (abfd)->e_flags &=~ EF_SPARC_32PLUS_MASK; | |
1931 | elf_elfheader (abfd)->e_flags |= EF_SPARC_32PLUS; | |
1932 | break; | |
1933 | case bfd_mach_sparc_v8plusa : | |
1934 | elf_elfheader (abfd)->e_machine = EM_SPARC32PLUS; | |
1935 | elf_elfheader (abfd)->e_flags &=~ EF_SPARC_32PLUS_MASK; | |
1936 | elf_elfheader (abfd)->e_flags |= EF_SPARC_32PLUS | EF_SPARC_SUN_US1; | |
1937 | break; | |
1938 | case bfd_mach_sparc_sparclite_le : | |
1939 | elf_elfheader (abfd)->e_machine = EM_SPARC; | |
1940 | elf_elfheader (abfd)->e_flags |= EF_SPARC_LEDATA; | |
1941 | break; | |
1942 | default : | |
1943 | abort (); | |
1944 | break; | |
1945 | } | |
1946 | } | |
1947 | \f | |
1948 | #define TARGET_BIG_SYM bfd_elf32_sparc_vec | |
1949 | #define TARGET_BIG_NAME "elf32-sparc" | |
1950 | #define ELF_ARCH bfd_arch_sparc | |
1951 | #define ELF_MACHINE_CODE EM_SPARC | |
1952 | #define ELF_MACHINE_ALT1 EM_SPARC32PLUS | |
1953 | #define ELF_MAXPAGESIZE 0x10000 | |
1954 | ||
1955 | #define bfd_elf32_bfd_reloc_type_lookup elf32_sparc_reloc_type_lookup | |
1956 | #define elf_info_to_howto elf32_sparc_info_to_howto | |
1957 | #define elf_backend_create_dynamic_sections \ | |
1958 | _bfd_elf_create_dynamic_sections | |
1959 | #define elf_backend_check_relocs elf32_sparc_check_relocs | |
1960 | #define elf_backend_adjust_dynamic_symbol \ | |
1961 | elf32_sparc_adjust_dynamic_symbol | |
1962 | #define elf_backend_size_dynamic_sections \ | |
1963 | elf32_sparc_size_dynamic_sections | |
1964 | #define elf_backend_relocate_section elf32_sparc_relocate_section | |
1965 | #define elf_backend_finish_dynamic_symbol \ | |
1966 | elf32_sparc_finish_dynamic_symbol | |
1967 | #define elf_backend_finish_dynamic_sections \ | |
1968 | elf32_sparc_finish_dynamic_sections | |
1969 | #define bfd_elf32_bfd_merge_private_bfd_data \ | |
1970 | elf32_sparc_merge_private_bfd_data | |
1971 | #define elf_backend_object_p elf32_sparc_object_p | |
1972 | #define elf_backend_final_write_processing \ | |
1973 | elf32_sparc_final_write_processing | |
1974 | #define elf_backend_gc_mark_hook elf32_sparc_gc_mark_hook | |
1975 | #define elf_backend_gc_sweep_hook elf32_sparc_gc_sweep_hook | |
1976 | ||
1977 | #define elf_backend_can_gc_sections 1 | |
1978 | #define elf_backend_want_got_plt 0 | |
1979 | #define elf_backend_plt_readonly 0 | |
1980 | #define elf_backend_want_plt_sym 1 | |
1981 | #define elf_backend_got_header_size 4 | |
1982 | #define elf_backend_plt_header_size (4*PLT_ENTRY_SIZE) | |
1983 | ||
1984 | #include "elf32-target.h" |