Commit | Line | Data |
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32090b8e | 1 | /* SPARC-specific support for 32-bit ELF |
511068f6 | 2 | Copyright (C) 1993, 1994, 1995, 1996, 1997, 1998 Free Software Foundation, Inc. |
32090b8e KR |
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 | |
943fbd5b | 18 | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ |
32090b8e KR |
19 | |
20 | #include "bfd.h" | |
21 | #include "sysdep.h" | |
013dec1a | 22 | #include "bfdlink.h" |
32090b8e | 23 | #include "libbfd.h" |
3b3f7625 | 24 | #include "elf-bfd.h" |
5bc513b4 | 25 | #include "elf/sparc.h" |
32090b8e | 26 | |
19bfbcbe | 27 | static reloc_howto_type *elf32_sparc_reloc_type_lookup |
013dec1a | 28 | PARAMS ((bfd *, bfd_reloc_code_real_type)); |
ff12f303 | 29 | static void elf32_sparc_info_to_howto |
013dec1a | 30 | PARAMS ((bfd *, arelent *, Elf_Internal_Rela *)); |
4fbc96ad KR |
31 | static boolean elf32_sparc_check_relocs |
32 | PARAMS ((bfd *, struct bfd_link_info *, asection *, | |
33 | const Elf_Internal_Rela *)); | |
013dec1a ILT |
34 | static boolean elf32_sparc_adjust_dynamic_symbol |
35 | PARAMS ((struct bfd_link_info *, struct elf_link_hash_entry *)); | |
14cac507 ILT |
36 | static boolean elf32_sparc_adjust_dynindx |
37 | PARAMS ((struct elf_link_hash_entry *, PTR)); | |
013dec1a ILT |
38 | static boolean elf32_sparc_size_dynamic_sections |
39 | PARAMS ((bfd *, struct bfd_link_info *)); | |
40 | static boolean elf32_sparc_relocate_section | |
41 | PARAMS ((bfd *, struct bfd_link_info *, bfd *, asection *, bfd_byte *, | |
12662be4 | 42 | Elf_Internal_Rela *, Elf_Internal_Sym *, asection **)); |
013dec1a ILT |
43 | static boolean elf32_sparc_finish_dynamic_symbol |
44 | PARAMS ((bfd *, struct bfd_link_info *, struct elf_link_hash_entry *, | |
45 | Elf_Internal_Sym *)); | |
46 | static boolean elf32_sparc_finish_dynamic_sections | |
47 | PARAMS ((bfd *, struct bfd_link_info *)); | |
5bc513b4 DE |
48 | static boolean elf32_sparc_merge_private_bfd_data PARAMS ((bfd *, bfd *)); |
49 | static boolean elf32_sparc_object_p | |
50 | PARAMS ((bfd *)); | |
51 | static void elf32_sparc_final_write_processing | |
52 | PARAMS ((bfd *, boolean)); | |
19bfbcbe | 53 | \f |
511068f6 | 54 | /* The relocation "howto" table. */ |
19bfbcbe ILT |
55 | |
56 | static bfd_reloc_status_type sparc_elf_notsupported_reloc | |
57 | PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **)); | |
58 | static bfd_reloc_status_type sparc_elf_wdisp16_reloc | |
59 | PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **)); | |
60 | ||
ff12f303 | 61 | reloc_howto_type _bfd_sparc_elf_howto_table[] = |
32090b8e | 62 | { |
19bfbcbe ILT |
63 | HOWTO(R_SPARC_NONE, 0,0, 0,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_NONE", false,0,0x00000000,true), |
64 | HOWTO(R_SPARC_8, 0,0, 8,false,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_8", false,0,0x000000ff,true), | |
65 | HOWTO(R_SPARC_16, 0,1,16,false,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_16", false,0,0x0000ffff,true), | |
66 | HOWTO(R_SPARC_32, 0,2,32,false,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_32", false,0,0xffffffff,true), | |
67 | HOWTO(R_SPARC_DISP8, 0,0, 8,true, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_DISP8", false,0,0x000000ff,true), | |
68 | HOWTO(R_SPARC_DISP16, 0,1,16,true, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_DISP16", false,0,0x0000ffff,true), | |
69 | HOWTO(R_SPARC_DISP32, 0,2,32,true, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_DISP32", false,0,0x00ffffff,true), | |
70 | HOWTO(R_SPARC_WDISP30, 2,2,30,true, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_WDISP30", false,0,0x3fffffff,true), | |
71 | HOWTO(R_SPARC_WDISP22, 2,2,22,true, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_WDISP22", false,0,0x003fffff,true), | |
72 | HOWTO(R_SPARC_HI22, 10,2,22,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_HI22", false,0,0x003fffff,true), | |
73 | HOWTO(R_SPARC_22, 0,2,22,false,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_22", false,0,0x003fffff,true), | |
74 | HOWTO(R_SPARC_13, 0,2,13,false,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_13", false,0,0x00001fff,true), | |
75 | HOWTO(R_SPARC_LO10, 0,2,10,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_LO10", false,0,0x000003ff,true), | |
76 | HOWTO(R_SPARC_GOT10, 0,2,10,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_GOT10", false,0,0x000003ff,true), | |
77 | HOWTO(R_SPARC_GOT13, 0,2,13,false,0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_GOT13", false,0,0x00001fff,true), | |
78 | HOWTO(R_SPARC_GOT22, 10,2,22,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_GOT22", false,0,0x003fffff,true), | |
79 | HOWTO(R_SPARC_PC10, 0,2,10,true, 0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_PC10", false,0,0x000003ff,true), | |
80 | HOWTO(R_SPARC_PC22, 10,2,22,true, 0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_PC22", false,0,0x003fffff,true), | |
81 | HOWTO(R_SPARC_WPLT30, 2,2,30,true, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_WPLT30", false,0,0x3fffffff,true), | |
82 | HOWTO(R_SPARC_COPY, 0,0,00,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_COPY", false,0,0x00000000,true), | |
83 | 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), | |
84 | 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), | |
85 | HOWTO(R_SPARC_RELATIVE, 0,0,00,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_RELATIVE",false,0,0x00000000,true), | |
86 | HOWTO(R_SPARC_UA32, 0,0,00,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_UA32", false,0,0x00000000,true), | |
87 | HOWTO(R_SPARC_PLT32, 0,0,00,false,0,complain_overflow_dont, sparc_elf_notsupported_reloc, "R_SPARC_PLT32", false,0,0x00000000,true), | |
88 | HOWTO(R_SPARC_HIPLT22, 0,0,00,false,0,complain_overflow_dont, sparc_elf_notsupported_reloc, "R_SPARC_HIPLT22", false,0,0x00000000,true), | |
89 | HOWTO(R_SPARC_LOPLT10, 0,0,00,false,0,complain_overflow_dont, sparc_elf_notsupported_reloc, "R_SPARC_LOPLT10", false,0,0x00000000,true), | |
90 | HOWTO(R_SPARC_PCPLT32, 0,0,00,false,0,complain_overflow_dont, sparc_elf_notsupported_reloc, "R_SPARC_PCPLT32", false,0,0x00000000,true), | |
91 | HOWTO(R_SPARC_PCPLT22, 0,0,00,false,0,complain_overflow_dont, sparc_elf_notsupported_reloc, "R_SPARC_PCPLT22", false,0,0x00000000,true), | |
92 | HOWTO(R_SPARC_PCPLT10, 0,0,00,false,0,complain_overflow_dont, sparc_elf_notsupported_reloc, "R_SPARC_PCPLT10", false,0,0x00000000,true), | |
93 | HOWTO(R_SPARC_10, 0,2,10,false,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_10", false,0,0x000003ff,true), | |
94 | HOWTO(R_SPARC_11, 0,2,11,false,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_11", false,0,0x000007ff,true), | |
511068f6 ILT |
95 | /* These are for sparc64 in a 64 bit environment. |
96 | Values need to be here because the table is indexed by reloc number. */ | |
97 | HOWTO(R_SPARC_64, 0,0,00,false,0,complain_overflow_dont, sparc_elf_notsupported_reloc, "R_SPARC_64", false,0,0x00000000,true), | |
98 | HOWTO(R_SPARC_OLO10, 0,0,00,false,0,complain_overflow_dont, sparc_elf_notsupported_reloc, "R_SPARC_OLO10", false,0,0x00000000,true), | |
19bfbcbe ILT |
99 | HOWTO(R_SPARC_HH22, 0,0,00,false,0,complain_overflow_dont, sparc_elf_notsupported_reloc, "R_SPARC_HH22", false,0,0x00000000,true), |
100 | HOWTO(R_SPARC_HM10, 0,0,00,false,0,complain_overflow_dont, sparc_elf_notsupported_reloc, "R_SPARC_HM10", false,0,0x00000000,true), | |
101 | HOWTO(R_SPARC_LM22, 0,0,00,false,0,complain_overflow_dont, sparc_elf_notsupported_reloc, "R_SPARC_LM22", false,0,0x00000000,true), | |
511068f6 ILT |
102 | 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), |
103 | 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), | |
104 | 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), | |
105 | /* End sparc64 in 64 bit environment values. | |
106 | The following are for sparc64 in a 32 bit environment. */ | |
19bfbcbe | 107 | HOWTO(R_SPARC_WDISP16, 2,2,16,true, 0,complain_overflow_signed, sparc_elf_wdisp16_reloc,"R_SPARC_WDISP16", false,0,0x00000000,true), |
511068f6 | 108 | HOWTO(R_SPARC_WDISP19, 2,2,19,true, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_WDISP19", false,0,0x0007ffff,true), |
3869b11f | 109 | 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), |
19bfbcbe ILT |
110 | HOWTO(R_SPARC_7, 0,2, 7,false,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_7", false,0,0x0000007f,true), |
111 | HOWTO(R_SPARC_5, 0,2, 5,false,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_5", false,0,0x0000001f,true), | |
112 | HOWTO(R_SPARC_6, 0,2, 6,false,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_6", false,0,0x0000003f,true), | |
511068f6 ILT |
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_NONE, 0,0, 0,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_NONE", false,0,0x00000000,true), | |
122 | HOWTO(R_SPARC_NONE, 0,0, 0,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_NONE", false,0,0x00000000,true), | |
123 | HOWTO(R_SPARC_32LE, 0,2,32,false,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_32LE", false,0,0xffffffff,true) | |
32090b8e KR |
124 | }; |
125 | ||
126 | struct elf_reloc_map { | |
127 | unsigned char bfd_reloc_val; | |
128 | unsigned char elf_reloc_val; | |
129 | }; | |
130 | ||
131 | static CONST struct elf_reloc_map sparc_reloc_map[] = | |
132 | { | |
133 | { BFD_RELOC_NONE, R_SPARC_NONE, }, | |
134 | { BFD_RELOC_16, R_SPARC_16, }, | |
135 | { BFD_RELOC_8, R_SPARC_8 }, | |
136 | { BFD_RELOC_8_PCREL, R_SPARC_DISP8 }, | |
511068f6 | 137 | { BFD_RELOC_CTOR, R_SPARC_32 }, |
32090b8e KR |
138 | { BFD_RELOC_32, R_SPARC_32 }, |
139 | { BFD_RELOC_32_PCREL, R_SPARC_DISP32 }, | |
140 | { BFD_RELOC_HI22, R_SPARC_HI22 }, | |
141 | { BFD_RELOC_LO10, R_SPARC_LO10, }, | |
142 | { BFD_RELOC_32_PCREL_S2, R_SPARC_WDISP30 }, | |
143 | { BFD_RELOC_SPARC22, R_SPARC_22 }, | |
144 | { BFD_RELOC_SPARC13, R_SPARC_13 }, | |
145 | { BFD_RELOC_SPARC_GOT10, R_SPARC_GOT10 }, | |
146 | { BFD_RELOC_SPARC_GOT13, R_SPARC_GOT13 }, | |
147 | { BFD_RELOC_SPARC_GOT22, R_SPARC_GOT22 }, | |
148 | { BFD_RELOC_SPARC_PC10, R_SPARC_PC10 }, | |
149 | { BFD_RELOC_SPARC_PC22, R_SPARC_PC22 }, | |
150 | { BFD_RELOC_SPARC_WPLT30, R_SPARC_WPLT30 }, | |
151 | { BFD_RELOC_SPARC_COPY, R_SPARC_COPY }, | |
152 | { BFD_RELOC_SPARC_GLOB_DAT, R_SPARC_GLOB_DAT }, | |
153 | { BFD_RELOC_SPARC_JMP_SLOT, R_SPARC_JMP_SLOT }, | |
154 | { BFD_RELOC_SPARC_RELATIVE, R_SPARC_RELATIVE }, | |
155 | { BFD_RELOC_SPARC_WDISP22, R_SPARC_WDISP22 }, | |
19bfbcbe | 156 | /* ??? Doesn't dwarf use this? */ |
4fbc96ad | 157 | /*{ BFD_RELOC_SPARC_UA32, R_SPARC_UA32 }, not used?? */ |
19bfbcbe ILT |
158 | {BFD_RELOC_SPARC_10, R_SPARC_10}, |
159 | {BFD_RELOC_SPARC_11, R_SPARC_11}, | |
160 | {BFD_RELOC_SPARC_64, R_SPARC_64}, | |
161 | {BFD_RELOC_SPARC_OLO10, R_SPARC_OLO10}, | |
162 | {BFD_RELOC_SPARC_HH22, R_SPARC_HH22}, | |
163 | {BFD_RELOC_SPARC_HM10, R_SPARC_HM10}, | |
164 | {BFD_RELOC_SPARC_LM22, R_SPARC_LM22}, | |
165 | {BFD_RELOC_SPARC_PC_HH22, R_SPARC_PC_HH22}, | |
166 | {BFD_RELOC_SPARC_PC_HM10, R_SPARC_PC_HM10}, | |
167 | {BFD_RELOC_SPARC_PC_LM22, R_SPARC_PC_LM22}, | |
168 | {BFD_RELOC_SPARC_WDISP16, R_SPARC_WDISP16}, | |
169 | {BFD_RELOC_SPARC_WDISP19, R_SPARC_WDISP19}, | |
19bfbcbe ILT |
170 | {BFD_RELOC_SPARC_7, R_SPARC_7}, |
171 | {BFD_RELOC_SPARC_5, R_SPARC_5}, | |
172 | {BFD_RELOC_SPARC_6, R_SPARC_6}, | |
511068f6 | 173 | {BFD_RELOC_SPARC_32LE, R_SPARC_32LE }, |
32090b8e KR |
174 | }; |
175 | ||
f786a73f | 176 | static reloc_howto_type * |
19bfbcbe | 177 | elf32_sparc_reloc_type_lookup (abfd, code) |
013dec1a ILT |
178 | bfd *abfd; |
179 | bfd_reloc_code_real_type code; | |
32090b8e | 180 | { |
3b3f7625 | 181 | unsigned int i; |
32090b8e KR |
182 | for (i = 0; i < sizeof (sparc_reloc_map) / sizeof (struct elf_reloc_map); i++) |
183 | { | |
184 | if (sparc_reloc_map[i].bfd_reloc_val == code) | |
19bfbcbe | 185 | return &_bfd_sparc_elf_howto_table[(int) sparc_reloc_map[i].elf_reloc_val]; |
32090b8e KR |
186 | } |
187 | return 0; | |
188 | } | |
189 | ||
19bfbcbe ILT |
190 | /* We need to use ELF32_R_TYPE so we have our own copy of this function, |
191 | and elf64-sparc.c has its own copy. */ | |
192 | ||
32090b8e | 193 | static void |
ff12f303 | 194 | elf32_sparc_info_to_howto (abfd, cache_ptr, dst) |
013dec1a ILT |
195 | bfd *abfd; |
196 | arelent *cache_ptr; | |
197 | Elf_Internal_Rela *dst; | |
32090b8e KR |
198 | { |
199 | BFD_ASSERT (ELF32_R_TYPE(dst->r_info) < (unsigned int) R_SPARC_max); | |
19bfbcbe | 200 | cache_ptr->howto = &_bfd_sparc_elf_howto_table[ELF32_R_TYPE(dst->r_info)]; |
32090b8e | 201 | } |
19bfbcbe ILT |
202 | \f |
203 | /* For unsupported relocs. */ | |
204 | ||
205 | static bfd_reloc_status_type | |
206 | sparc_elf_notsupported_reloc (abfd, | |
207 | reloc_entry, | |
208 | symbol, | |
209 | data, | |
210 | input_section, | |
211 | output_bfd, | |
212 | error_message) | |
213 | bfd *abfd; | |
214 | arelent *reloc_entry; | |
215 | asymbol *symbol; | |
216 | PTR data; | |
217 | asection *input_section; | |
218 | bfd *output_bfd; | |
219 | char **error_message; | |
220 | { | |
221 | return bfd_reloc_notsupported; | |
222 | } | |
223 | ||
224 | /* Handle the WDISP16 reloc. */ | |
225 | ||
226 | static bfd_reloc_status_type | |
227 | sparc_elf_wdisp16_reloc (abfd, | |
228 | reloc_entry, | |
229 | symbol, | |
230 | data, | |
231 | input_section, | |
232 | output_bfd, | |
233 | error_message) | |
234 | bfd *abfd; | |
235 | arelent *reloc_entry; | |
236 | asymbol *symbol; | |
237 | PTR data; | |
238 | asection *input_section; | |
239 | bfd *output_bfd; | |
240 | char **error_message; | |
241 | { | |
242 | bfd_vma relocation; | |
243 | bfd_vma x; | |
32090b8e | 244 | |
19bfbcbe ILT |
245 | if (output_bfd != (bfd *) NULL |
246 | && (symbol->flags & BSF_SECTION_SYM) == 0 | |
247 | && (! reloc_entry->howto->partial_inplace | |
248 | || reloc_entry->addend == 0)) | |
249 | { | |
250 | reloc_entry->address += input_section->output_offset; | |
251 | return bfd_reloc_ok; | |
252 | } | |
253 | ||
254 | if (output_bfd != NULL) | |
255 | return bfd_reloc_continue; | |
256 | ||
257 | if (reloc_entry->address > input_section->_cooked_size) | |
258 | return bfd_reloc_outofrange; | |
259 | ||
260 | relocation = (symbol->value | |
261 | + symbol->section->output_section->vma | |
262 | + symbol->section->output_offset); | |
263 | relocation += reloc_entry->addend; | |
264 | relocation -= (input_section->output_section->vma | |
265 | + input_section->output_offset); | |
266 | relocation -= reloc_entry->address; | |
267 | ||
9b5ec8b1 | 268 | x = bfd_get_32 (abfd, (bfd_byte *) data + reloc_entry->address); |
19bfbcbe ILT |
269 | x |= ((((relocation >> 2) & 0xc000) << 6) |
270 | | ((relocation >> 2) & 0x3fff)); | |
9b5ec8b1 | 271 | bfd_put_32 (abfd, x, (bfd_byte *) data + reloc_entry->address); |
19bfbcbe ILT |
272 | |
273 | if ((bfd_signed_vma) relocation < - 0x40000 | |
274 | || (bfd_signed_vma) relocation > 0x3ffff) | |
275 | return bfd_reloc_overflow; | |
276 | else | |
277 | return bfd_reloc_ok; | |
278 | } | |
013dec1a ILT |
279 | \f |
280 | /* Functions for the SPARC ELF linker. */ | |
281 | ||
282 | /* The name of the dynamic interpreter. This is put in the .interp | |
283 | section. */ | |
284 | ||
285 | #define ELF_DYNAMIC_INTERPRETER "/usr/lib/ld.so.1" | |
286 | ||
287 | /* The nop opcode we use. */ | |
288 | ||
289 | #define SPARC_NOP 0x01000000 | |
290 | ||
291 | /* The size in bytes of an entry in the procedure linkage table. */ | |
292 | ||
293 | #define PLT_ENTRY_SIZE 12 | |
294 | ||
295 | /* The first four entries in a procedure linkage table are reserved, | |
296 | and the initial contents are unimportant (we zero them out). | |
297 | Subsequent entries look like this. See the SVR4 ABI SPARC | |
298 | supplement to see how this works. */ | |
299 | ||
300 | /* sethi %hi(.-.plt0),%g1. We fill in the address later. */ | |
301 | #define PLT_ENTRY_WORD0 0x03000000 | |
302 | /* b,a .plt0. We fill in the offset later. */ | |
303 | #define PLT_ENTRY_WORD1 0x30800000 | |
304 | /* nop. */ | |
305 | #define PLT_ENTRY_WORD2 SPARC_NOP | |
306 | ||
4fbc96ad KR |
307 | /* Look through the relocs for a section during the first phase, and |
308 | allocate space in the global offset table or procedure linkage | |
309 | table. */ | |
310 | ||
311 | static boolean | |
312 | elf32_sparc_check_relocs (abfd, info, sec, relocs) | |
313 | bfd *abfd; | |
314 | struct bfd_link_info *info; | |
315 | asection *sec; | |
316 | const Elf_Internal_Rela *relocs; | |
317 | { | |
318 | bfd *dynobj; | |
319 | Elf_Internal_Shdr *symtab_hdr; | |
320 | struct elf_link_hash_entry **sym_hashes; | |
321 | bfd_vma *local_got_offsets; | |
322 | const Elf_Internal_Rela *rel; | |
323 | const Elf_Internal_Rela *rel_end; | |
324 | asection *sgot; | |
325 | asection *srelgot; | |
4fbc96ad KR |
326 | asection *sreloc; |
327 | ||
328 | if (info->relocateable) | |
329 | return true; | |
330 | ||
331 | dynobj = elf_hash_table (info)->dynobj; | |
332 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; | |
333 | sym_hashes = elf_sym_hashes (abfd); | |
334 | local_got_offsets = elf_local_got_offsets (abfd); | |
335 | ||
336 | sgot = NULL; | |
337 | srelgot = NULL; | |
4fbc96ad KR |
338 | sreloc = NULL; |
339 | ||
340 | rel_end = relocs + sec->reloc_count; | |
341 | for (rel = relocs; rel < rel_end; rel++) | |
342 | { | |
3b3f7625 | 343 | unsigned long r_symndx; |
4fbc96ad KR |
344 | struct elf_link_hash_entry *h; |
345 | ||
346 | r_symndx = ELF32_R_SYM (rel->r_info); | |
347 | if (r_symndx < symtab_hdr->sh_info) | |
348 | h = NULL; | |
349 | else | |
350 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
351 | ||
4fbc96ad KR |
352 | switch (ELF32_R_TYPE (rel->r_info)) |
353 | { | |
354 | case R_SPARC_GOT10: | |
355 | case R_SPARC_GOT13: | |
356 | case R_SPARC_GOT22: | |
357 | /* This symbol requires a global offset table entry. */ | |
358 | ||
12662be4 ILT |
359 | if (dynobj == NULL) |
360 | { | |
361 | /* Create the .got section. */ | |
362 | elf_hash_table (info)->dynobj = dynobj = abfd; | |
ede4eed4 | 363 | if (! _bfd_elf_create_got_section (dynobj, info)) |
12662be4 ILT |
364 | return false; |
365 | } | |
366 | ||
4fbc96ad KR |
367 | if (sgot == NULL) |
368 | { | |
369 | sgot = bfd_get_section_by_name (dynobj, ".got"); | |
12662be4 ILT |
370 | BFD_ASSERT (sgot != NULL); |
371 | } | |
372 | ||
373 | if (srelgot == NULL | |
374 | && (h != NULL || info->shared)) | |
375 | { | |
4fbc96ad KR |
376 | srelgot = bfd_get_section_by_name (dynobj, ".rela.got"); |
377 | if (srelgot == NULL) | |
378 | { | |
379 | srelgot = bfd_make_section (dynobj, ".rela.got"); | |
380 | if (srelgot == NULL | |
381 | || ! bfd_set_section_flags (dynobj, srelgot, | |
382 | (SEC_ALLOC | |
383 | | SEC_LOAD | |
384 | | SEC_HAS_CONTENTS | |
385 | | SEC_IN_MEMORY | |
ff12f303 | 386 | | SEC_LINKER_CREATED |
12662be4 ILT |
387 | | SEC_READONLY)) |
388 | || ! bfd_set_section_alignment (dynobj, srelgot, 2)) | |
4fbc96ad KR |
389 | return false; |
390 | } | |
4fbc96ad KR |
391 | } |
392 | ||
393 | if (h != NULL) | |
394 | { | |
511068f6 | 395 | if (h->got.offset != (bfd_vma) -1) |
4fbc96ad KR |
396 | { |
397 | /* We have already allocated space in the .got. */ | |
398 | break; | |
399 | } | |
511068f6 | 400 | h->got.offset = sgot->_raw_size; |
12662be4 ILT |
401 | |
402 | /* Make sure this symbol is output as a dynamic symbol. */ | |
403 | if (h->dynindx == -1) | |
404 | { | |
405 | if (! bfd_elf32_link_record_dynamic_symbol (info, h)) | |
406 | return false; | |
407 | } | |
408 | ||
409 | srelgot->_raw_size += sizeof (Elf32_External_Rela); | |
4fbc96ad KR |
410 | } |
411 | else | |
412 | { | |
413 | /* This is a global offset table entry for a local | |
414 | symbol. */ | |
415 | if (local_got_offsets == NULL) | |
416 | { | |
417 | size_t size; | |
3b3f7625 | 418 | register unsigned int i; |
4fbc96ad KR |
419 | |
420 | size = symtab_hdr->sh_info * sizeof (bfd_vma); | |
421 | local_got_offsets = (bfd_vma *) bfd_alloc (abfd, size); | |
422 | if (local_got_offsets == NULL) | |
a9713b91 | 423 | return false; |
4fbc96ad KR |
424 | elf_local_got_offsets (abfd) = local_got_offsets; |
425 | for (i = 0; i < symtab_hdr->sh_info; i++) | |
426 | local_got_offsets[i] = (bfd_vma) -1; | |
427 | } | |
428 | if (local_got_offsets[r_symndx] != (bfd_vma) -1) | |
429 | { | |
430 | /* We have already allocated space in the .got. */ | |
431 | break; | |
432 | } | |
433 | local_got_offsets[r_symndx] = sgot->_raw_size; | |
12662be4 ILT |
434 | |
435 | if (info->shared) | |
436 | { | |
437 | /* If we are generating a shared object, we need to | |
438 | output a R_SPARC_RELATIVE reloc so that the | |
439 | dynamic linker can adjust this GOT entry. */ | |
440 | srelgot->_raw_size += sizeof (Elf32_External_Rela); | |
441 | } | |
4fbc96ad KR |
442 | } |
443 | ||
444 | sgot->_raw_size += 4; | |
4fbc96ad | 445 | |
19bfbcbe ILT |
446 | /* If the .got section is more than 0x1000 bytes, we add |
447 | 0x1000 to the value of _GLOBAL_OFFSET_TABLE_, so that 13 | |
448 | bit relocations have a greater chance of working. */ | |
449 | if (sgot->_raw_size >= 0x1000 | |
450 | && elf_hash_table (info)->hgot->root.u.def.value == 0) | |
451 | elf_hash_table (info)->hgot->root.u.def.value = 0x1000; | |
452 | ||
4fbc96ad KR |
453 | break; |
454 | ||
455 | case R_SPARC_WPLT30: | |
12662be4 ILT |
456 | /* This symbol requires a procedure linkage table entry. We |
457 | actually build the entry in adjust_dynamic_symbol, | |
458 | because this might be a case of linking PIC code without | |
459 | linking in any dynamic objects, in which case we don't | |
460 | need to generate a procedure linkage table after all. */ | |
4fbc96ad KR |
461 | |
462 | if (h == NULL) | |
463 | { | |
464 | /* It does not make sense to have a procedure linkage | |
465 | table entry for a local symbol. */ | |
466 | bfd_set_error (bfd_error_bad_value); | |
467 | return false; | |
468 | } | |
469 | ||
12662be4 ILT |
470 | /* Make sure this symbol is output as a dynamic symbol. */ |
471 | if (h->dynindx == -1) | |
4fbc96ad | 472 | { |
12662be4 ILT |
473 | if (! bfd_elf32_link_record_dynamic_symbol (info, h)) |
474 | return false; | |
4fbc96ad KR |
475 | } |
476 | ||
12662be4 | 477 | h->elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_PLT; |
4fbc96ad KR |
478 | |
479 | break; | |
480 | ||
481 | case R_SPARC_PC10: | |
482 | case R_SPARC_PC22: | |
483 | if (h != NULL | |
484 | && strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0) | |
485 | break; | |
486 | /* Fall through. */ | |
4fbc96ad KR |
487 | case R_SPARC_DISP8: |
488 | case R_SPARC_DISP16: | |
489 | case R_SPARC_DISP32: | |
490 | case R_SPARC_WDISP30: | |
491 | case R_SPARC_WDISP22: | |
19bfbcbe ILT |
492 | case R_SPARC_WDISP19: |
493 | case R_SPARC_WDISP16: | |
511068f6 ILT |
494 | /* If we are linking with -Bsymbolic, we do not need to copy |
495 | a PC relative reloc against a global symbol which is | |
496 | defined in an object we are including in the link (i.e., | |
497 | DEF_REGULAR is set). FIXME: At this point we have not | |
498 | seen all the input files, so it is possible that | |
499 | DEF_REGULAR is not set now but will be set later (it is | |
500 | never cleared). This needs to be handled as in | |
501 | elf32-i386.c. */ | |
502 | if (h == NULL | |
503 | || (info->symbolic | |
504 | && (h->elf_link_hash_flags | |
505 | & ELF_LINK_HASH_DEF_REGULAR) != 0)) | |
3b3f7625 ILT |
506 | break; |
507 | /* Fall through. */ | |
508 | case R_SPARC_8: | |
509 | case R_SPARC_16: | |
510 | case R_SPARC_32: | |
4fbc96ad KR |
511 | case R_SPARC_HI22: |
512 | case R_SPARC_22: | |
513 | case R_SPARC_13: | |
514 | case R_SPARC_LO10: | |
515 | case R_SPARC_UA32: | |
ff12f303 | 516 | if (info->shared) |
4fbc96ad KR |
517 | { |
518 | /* When creating a shared object, we must copy these | |
519 | relocs into the output file. We create a reloc | |
520 | section in dynobj and make room for the reloc. */ | |
521 | if (sreloc == NULL) | |
522 | { | |
523 | const char *name; | |
524 | ||
ede4eed4 | 525 | name = (bfd_elf_string_from_elf_section |
4fbc96ad KR |
526 | (abfd, |
527 | elf_elfheader (abfd)->e_shstrndx, | |
528 | elf_section_data (sec)->rel_hdr.sh_name)); | |
529 | if (name == NULL) | |
530 | return false; | |
531 | ||
532 | BFD_ASSERT (strncmp (name, ".rela", 5) == 0 | |
533 | && strcmp (bfd_get_section_name (abfd, sec), | |
534 | name + 5) == 0); | |
535 | ||
536 | sreloc = bfd_get_section_by_name (dynobj, name); | |
537 | if (sreloc == NULL) | |
538 | { | |
ff12f303 ILT |
539 | flagword flags; |
540 | ||
4fbc96ad | 541 | sreloc = bfd_make_section (dynobj, name); |
ff12f303 ILT |
542 | flags = (SEC_HAS_CONTENTS | SEC_READONLY |
543 | | SEC_IN_MEMORY | SEC_LINKER_CREATED); | |
544 | if ((sec->flags & SEC_ALLOC) != 0) | |
545 | flags |= SEC_ALLOC | SEC_LOAD; | |
4fbc96ad | 546 | if (sreloc == NULL |
ff12f303 | 547 | || ! bfd_set_section_flags (dynobj, sreloc, flags) |
4fbc96ad KR |
548 | || ! bfd_set_section_alignment (dynobj, sreloc, 2)) |
549 | return false; | |
550 | } | |
551 | } | |
552 | ||
553 | sreloc->_raw_size += sizeof (Elf32_External_Rela); | |
554 | } | |
555 | ||
556 | break; | |
557 | ||
558 | default: | |
559 | break; | |
560 | } | |
561 | } | |
013dec1a ILT |
562 | |
563 | return true; | |
564 | } | |
565 | ||
566 | /* Adjust a symbol defined by a dynamic object and referenced by a | |
567 | regular object. The current definition is in some section of the | |
568 | dynamic object, but we're not including those sections. We have to | |
569 | change the definition to something the rest of the link can | |
570 | understand. */ | |
571 | ||
572 | static boolean | |
573 | elf32_sparc_adjust_dynamic_symbol (info, h) | |
574 | struct bfd_link_info *info; | |
575 | struct elf_link_hash_entry *h; | |
576 | { | |
577 | bfd *dynobj; | |
578 | asection *s; | |
579 | unsigned int power_of_two; | |
013dec1a ILT |
580 | |
581 | dynobj = elf_hash_table (info)->dynobj; | |
582 | ||
583 | /* Make sure we know what is going on here. */ | |
3004a68c ILT |
584 | BFD_ASSERT (dynobj != NULL |
585 | && ((h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_PLT) | |
3b3f7625 | 586 | || h->weakdef != NULL |
3004a68c ILT |
587 | || ((h->elf_link_hash_flags |
588 | & ELF_LINK_HASH_DEF_DYNAMIC) != 0 | |
589 | && (h->elf_link_hash_flags | |
590 | & ELF_LINK_HASH_REF_REGULAR) != 0 | |
591 | && (h->elf_link_hash_flags | |
592 | & ELF_LINK_HASH_DEF_REGULAR) == 0))); | |
013dec1a ILT |
593 | |
594 | /* If this is a function, put it in the procedure linkage table. We | |
595 | will fill in the contents of the procedure linkage table later | |
0727fe10 ILT |
596 | (although we could actually do it here). The STT_NOTYPE |
597 | condition is a hack specifically for the Oracle libraries | |
598 | delivered for Solaris; for some inexplicable reason, they define | |
599 | some of their functions as STT_NOTYPE when they really should be | |
600 | STT_FUNC. */ | |
12662be4 | 601 | if (h->type == STT_FUNC |
0727fe10 ILT |
602 | || (h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_PLT) != 0 |
603 | || (h->type == STT_NOTYPE | |
604 | && (h->root.type == bfd_link_hash_defined | |
605 | || h->root.type == bfd_link_hash_defweak) | |
606 | && (h->root.u.def.section->flags & SEC_CODE) != 0)) | |
013dec1a | 607 | { |
511068f6 ILT |
608 | if (! elf_hash_table (info)->dynamic_sections_created |
609 | || ((!info->shared || info->symbolic || h->dynindx == -1) | |
610 | && (h->elf_link_hash_flags | |
611 | & ELF_LINK_HASH_DEF_REGULAR) != 0)) | |
013dec1a | 612 | { |
12662be4 | 613 | /* This case can occur if we saw a WPLT30 reloc in an input |
511068f6 ILT |
614 | file, but none of the input files were dynamic objects. |
615 | Or, when linking the main application or a -Bsymbolic | |
616 | shared library against PIC code. Or when a global symbol | |
617 | has been made private, e.g. via versioning. | |
618 | ||
619 | In these cases we know what value the symbol will resolve | |
620 | to, so we don't actually need to build a procedure linkage | |
621 | table, and we can just do a WDISP30 reloc instead. */ | |
622 | ||
623 | h->elf_link_hash_flags &= ~ELF_LINK_HASH_NEEDS_PLT; | |
12662be4 ILT |
624 | return true; |
625 | } | |
4fbc96ad | 626 | |
12662be4 ILT |
627 | s = bfd_get_section_by_name (dynobj, ".plt"); |
628 | BFD_ASSERT (s != NULL); | |
013dec1a | 629 | |
12662be4 ILT |
630 | /* The first four entries in .plt are reserved. */ |
631 | if (s->_raw_size == 0) | |
632 | s->_raw_size = 4 * PLT_ENTRY_SIZE; | |
013dec1a | 633 | |
12662be4 ILT |
634 | /* The procedure linkage table has a maximum size. */ |
635 | if (s->_raw_size >= 0x400000) | |
636 | { | |
637 | bfd_set_error (bfd_error_bad_value); | |
638 | return false; | |
639 | } | |
013dec1a | 640 | |
511068f6 ILT |
641 | /* If this symbol is not defined in a regular file, and we are |
642 | not generating a shared library, then set the symbol to this | |
643 | location in the .plt. This is required to make function | |
644 | pointers compare as equal between the normal executable and | |
645 | the shared library. */ | |
646 | if (! info->shared | |
647 | && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0) | |
648 | { | |
649 | h->root.u.def.section = s; | |
650 | h->root.u.def.value = s->_raw_size; | |
651 | } | |
013dec1a | 652 | |
511068f6 | 653 | h->plt.offset = s->_raw_size; |
4fbc96ad | 654 | |
12662be4 ILT |
655 | /* Make room for this entry. */ |
656 | s->_raw_size += PLT_ENTRY_SIZE; | |
657 | ||
658 | /* We also need to make an entry in the .rela.plt section. */ | |
659 | ||
660 | s = bfd_get_section_by_name (dynobj, ".rela.plt"); | |
661 | BFD_ASSERT (s != NULL); | |
662 | s->_raw_size += sizeof (Elf32_External_Rela); | |
013dec1a ILT |
663 | |
664 | return true; | |
665 | } | |
666 | ||
667 | /* If this is a weak symbol, and there is a real definition, the | |
668 | processor independent code will have arranged for us to see the | |
669 | real definition first, and we can just use the same value. */ | |
670 | if (h->weakdef != NULL) | |
671 | { | |
f786a73f ILT |
672 | BFD_ASSERT (h->weakdef->root.type == bfd_link_hash_defined |
673 | || h->weakdef->root.type == bfd_link_hash_defweak); | |
013dec1a ILT |
674 | h->root.u.def.section = h->weakdef->root.u.def.section; |
675 | h->root.u.def.value = h->weakdef->root.u.def.value; | |
013dec1a ILT |
676 | return true; |
677 | } | |
678 | ||
679 | /* This is a reference to a symbol defined by a dynamic object which | |
4fbc96ad KR |
680 | is not a function. */ |
681 | ||
682 | /* If we are creating a shared library, we must presume that the | |
683 | only references to the symbol are via the global offset table. | |
684 | For such cases we need not do anything here; the relocations will | |
685 | be handled correctly by relocate_section. */ | |
686 | if (info->shared) | |
687 | return true; | |
688 | ||
689 | /* We must allocate the symbol in our .dynbss section, which will | |
690 | become part of the .bss section of the executable. There will be | |
691 | an entry for this symbol in the .dynsym section. The dynamic | |
692 | object will contain position independent code, so all references | |
693 | from the dynamic object to this symbol will go through the global | |
694 | offset table. The dynamic linker will use the .dynsym entry to | |
695 | determine the address it must put in the global offset table, so | |
696 | both the dynamic object and the regular object will refer to the | |
697 | same memory location for the variable. */ | |
013dec1a ILT |
698 | |
699 | s = bfd_get_section_by_name (dynobj, ".dynbss"); | |
700 | BFD_ASSERT (s != NULL); | |
701 | ||
6a1878c9 ILT |
702 | /* We must generate a R_SPARC_COPY reloc to tell the dynamic linker |
703 | to copy the initial value out of the dynamic object and into the | |
704 | runtime process image. We need to remember the offset into the | |
705 | .rel.bss section we are going to use. */ | |
706 | if ((h->root.u.def.section->flags & SEC_ALLOC) != 0) | |
013dec1a ILT |
707 | { |
708 | asection *srel; | |
709 | ||
710 | srel = bfd_get_section_by_name (dynobj, ".rela.bss"); | |
711 | BFD_ASSERT (srel != NULL); | |
013dec1a | 712 | srel->_raw_size += sizeof (Elf32_External_Rela); |
4fbc96ad | 713 | h->elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_COPY; |
013dec1a ILT |
714 | } |
715 | ||
716 | /* We need to figure out the alignment required for this symbol. I | |
717 | have no idea how ELF linkers handle this. */ | |
7c6da9ca ILT |
718 | power_of_two = bfd_log2 (h->size); |
719 | if (power_of_two > 3) | |
720 | power_of_two = 3; | |
013dec1a ILT |
721 | |
722 | /* Apply the required alignment. */ | |
7c6da9ca ILT |
723 | s->_raw_size = BFD_ALIGN (s->_raw_size, |
724 | (bfd_size_type) (1 << power_of_two)); | |
013dec1a ILT |
725 | if (power_of_two > bfd_get_section_alignment (dynobj, s)) |
726 | { | |
727 | if (! bfd_set_section_alignment (dynobj, s, power_of_two)) | |
728 | return false; | |
729 | } | |
730 | ||
731 | /* Define the symbol as being at this point in the section. */ | |
732 | h->root.u.def.section = s; | |
733 | h->root.u.def.value = s->_raw_size; | |
734 | ||
735 | /* Increment the section size to make room for the symbol. */ | |
736 | s->_raw_size += h->size; | |
737 | ||
738 | return true; | |
739 | } | |
740 | ||
013dec1a ILT |
741 | /* Set the sizes of the dynamic sections. */ |
742 | ||
743 | static boolean | |
744 | elf32_sparc_size_dynamic_sections (output_bfd, info) | |
745 | bfd *output_bfd; | |
746 | struct bfd_link_info *info; | |
747 | { | |
748 | bfd *dynobj; | |
749 | asection *s; | |
4fbc96ad | 750 | boolean reltext; |
f786a73f | 751 | boolean relplt; |
013dec1a ILT |
752 | |
753 | dynobj = elf_hash_table (info)->dynobj; | |
754 | BFD_ASSERT (dynobj != NULL); | |
755 | ||
12662be4 | 756 | if (elf_hash_table (info)->dynamic_sections_created) |
8af74670 | 757 | { |
12662be4 ILT |
758 | /* Set the contents of the .interp section to the interpreter. */ |
759 | if (! info->shared) | |
760 | { | |
761 | s = bfd_get_section_by_name (dynobj, ".interp"); | |
762 | BFD_ASSERT (s != NULL); | |
763 | s->_raw_size = sizeof ELF_DYNAMIC_INTERPRETER; | |
764 | s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER; | |
765 | } | |
766 | ||
767 | /* Make space for the trailing nop in .plt. */ | |
768 | s = bfd_get_section_by_name (dynobj, ".plt"); | |
8af74670 | 769 | BFD_ASSERT (s != NULL); |
12662be4 ILT |
770 | if (s->_raw_size > 0) |
771 | s->_raw_size += 4; | |
772 | } | |
773 | else | |
774 | { | |
775 | /* We may have created entries in the .rela.got section. | |
776 | However, if we are not creating the dynamic sections, we will | |
777 | not actually use these entries. Reset the size of .rela.got, | |
778 | which will cause it to get stripped from the output file | |
779 | below. */ | |
780 | s = bfd_get_section_by_name (dynobj, ".rela.got"); | |
781 | if (s != NULL) | |
782 | s->_raw_size = 0; | |
8af74670 | 783 | } |
013dec1a | 784 | |
4fbc96ad KR |
785 | /* The check_relocs and adjust_dynamic_symbol entry points have |
786 | determined the sizes of the various dynamic sections. Allocate | |
787 | memory for them. */ | |
788 | reltext = false; | |
f786a73f | 789 | relplt = false; |
4fbc96ad KR |
790 | for (s = dynobj->sections; s != NULL; s = s->next) |
791 | { | |
792 | const char *name; | |
12662be4 | 793 | boolean strip; |
4fbc96ad | 794 | |
ff12f303 | 795 | if ((s->flags & SEC_LINKER_CREATED) == 0) |
4fbc96ad KR |
796 | continue; |
797 | ||
798 | /* It's OK to base decisions on the section name, because none | |
799 | of the dynobj section names depend upon the input files. */ | |
800 | name = bfd_get_section_name (dynobj, s); | |
801 | ||
12662be4 ILT |
802 | strip = false; |
803 | ||
804 | if (strncmp (name, ".rela", 5) == 0) | |
4fbc96ad | 805 | { |
12662be4 ILT |
806 | if (s->_raw_size == 0) |
807 | { | |
808 | /* If we don't need this section, strip it from the | |
809 | output file. This is to handle .rela.bss and | |
810 | .rel.plt. We must create it in | |
811 | create_dynamic_sections, because it must be created | |
812 | before the linker maps input sections to output | |
813 | sections. The linker does that before | |
814 | adjust_dynamic_symbol is called, and it is that | |
815 | function which decides whether anything needs to go | |
816 | into these sections. */ | |
817 | strip = true; | |
818 | } | |
819 | else | |
820 | { | |
0727fe10 | 821 | const char *outname; |
12662be4 ILT |
822 | asection *target; |
823 | ||
824 | /* If this relocation section applies to a read only | |
825 | section, then we probably need a DT_TEXTREL entry. */ | |
0727fe10 ILT |
826 | outname = bfd_get_section_name (output_bfd, |
827 | s->output_section); | |
828 | target = bfd_get_section_by_name (output_bfd, outname + 5); | |
12662be4 | 829 | if (target != NULL |
3869b11f DE |
830 | && (target->flags & SEC_READONLY) != 0 |
831 | && (target->flags & SEC_ALLOC) != 0) | |
12662be4 ILT |
832 | reltext = true; |
833 | ||
f786a73f ILT |
834 | if (strcmp (name, ".rela.plt") == 0) |
835 | relplt = true; | |
836 | ||
12662be4 ILT |
837 | /* We use the reloc_count field as a counter if we need |
838 | to copy relocs into the output file. */ | |
839 | s->reloc_count = 0; | |
840 | } | |
4fbc96ad KR |
841 | } |
842 | else if (strcmp (name, ".plt") != 0 | |
843 | && strcmp (name, ".got") != 0) | |
844 | { | |
845 | /* It's not one of our sections, so don't allocate space. */ | |
846 | continue; | |
847 | } | |
12662be4 ILT |
848 | |
849 | if (strip) | |
850 | { | |
851 | asection **spp; | |
852 | ||
853 | for (spp = &s->output_section->owner->sections; | |
854 | *spp != s->output_section; | |
855 | spp = &(*spp)->next) | |
856 | ; | |
857 | *spp = s->output_section->next; | |
858 | --s->output_section->owner->section_count; | |
859 | ||
860 | continue; | |
861 | } | |
862 | ||
4fbc96ad KR |
863 | /* Allocate memory for the section contents. */ |
864 | s->contents = (bfd_byte *) bfd_alloc (dynobj, s->_raw_size); | |
865 | if (s->contents == NULL && s->_raw_size != 0) | |
a9713b91 | 866 | return false; |
4fbc96ad | 867 | } |
013dec1a | 868 | |
12662be4 | 869 | if (elf_hash_table (info)->dynamic_sections_created) |
4fbc96ad | 870 | { |
12662be4 ILT |
871 | /* Add some entries to the .dynamic section. We fill in the |
872 | values later, in elf32_sparc_finish_dynamic_sections, but we | |
873 | must add the entries now so that we get the correct size for | |
874 | the .dynamic section. The DT_DEBUG entry is filled in by the | |
875 | dynamic linker and used by the debugger. */ | |
876 | if (! info->shared) | |
877 | { | |
878 | if (! bfd_elf32_add_dynamic_entry (info, DT_DEBUG, 0)) | |
879 | return false; | |
880 | } | |
013dec1a | 881 | |
f786a73f ILT |
882 | if (relplt) |
883 | { | |
0727fe10 ILT |
884 | if (! bfd_elf32_add_dynamic_entry (info, DT_PLTGOT, 0) |
885 | || ! bfd_elf32_add_dynamic_entry (info, DT_PLTRELSZ, 0) | |
f786a73f ILT |
886 | || ! bfd_elf32_add_dynamic_entry (info, DT_PLTREL, DT_RELA) |
887 | || ! bfd_elf32_add_dynamic_entry (info, DT_JMPREL, 0)) | |
888 | return false; | |
889 | } | |
890 | ||
891 | if (! bfd_elf32_add_dynamic_entry (info, DT_RELA, 0) | |
12662be4 ILT |
892 | || ! bfd_elf32_add_dynamic_entry (info, DT_RELASZ, 0) |
893 | || ! bfd_elf32_add_dynamic_entry (info, DT_RELAENT, | |
894 | sizeof (Elf32_External_Rela))) | |
4fbc96ad | 895 | return false; |
12662be4 ILT |
896 | |
897 | if (reltext) | |
898 | { | |
899 | if (! bfd_elf32_add_dynamic_entry (info, DT_TEXTREL, 0)) | |
900 | return false; | |
901 | } | |
4fbc96ad KR |
902 | } |
903 | ||
14cac507 | 904 | /* If we are generating a shared library, we generate a section |
e9148724 ILT |
905 | symbol for each output section for which we might need to copy |
906 | relocs. These are local symbols, which means that they must come | |
907 | first in the dynamic symbol table. That means we must increment | |
908 | the dynamic symbol index of every other dynamic symbol. */ | |
14cac507 ILT |
909 | if (info->shared) |
910 | { | |
e9148724 | 911 | int c; |
14cac507 | 912 | |
e9148724 ILT |
913 | c = 0; |
914 | for (s = output_bfd->sections; s != NULL; s = s->next) | |
14cac507 | 915 | { |
e9148724 | 916 | if ((s->flags & SEC_LINKER_CREATED) != 0 |
6a1878c9 | 917 | || (s->flags & SEC_ALLOC) == 0) |
e9148724 ILT |
918 | continue; |
919 | ||
920 | elf_section_data (s)->dynindx = c + 1; | |
921 | ||
14cac507 ILT |
922 | /* These symbols will have no names, so we don't need to |
923 | fiddle with dynstr_index. */ | |
e9148724 ILT |
924 | |
925 | ++c; | |
14cac507 | 926 | } |
e9148724 ILT |
927 | |
928 | elf_link_hash_traverse (elf_hash_table (info), | |
929 | elf32_sparc_adjust_dynindx, | |
930 | (PTR) &c); | |
931 | elf_hash_table (info)->dynsymcount += c; | |
14cac507 ILT |
932 | } |
933 | ||
934 | return true; | |
935 | } | |
936 | ||
937 | /* Increment the index of a dynamic symbol by a given amount. Called | |
938 | via elf_link_hash_traverse. */ | |
939 | ||
940 | static boolean | |
941 | elf32_sparc_adjust_dynindx (h, cparg) | |
942 | struct elf_link_hash_entry *h; | |
943 | PTR cparg; | |
944 | { | |
945 | int *cp = (int *) cparg; | |
946 | ||
947 | if (h->dynindx != -1) | |
948 | h->dynindx += *cp; | |
013dec1a ILT |
949 | return true; |
950 | } | |
951 | ||
952 | /* Relocate a SPARC ELF section. */ | |
953 | ||
954 | static boolean | |
955 | elf32_sparc_relocate_section (output_bfd, info, input_bfd, input_section, | |
12662be4 | 956 | contents, relocs, local_syms, local_sections) |
013dec1a ILT |
957 | bfd *output_bfd; |
958 | struct bfd_link_info *info; | |
959 | bfd *input_bfd; | |
960 | asection *input_section; | |
961 | bfd_byte *contents; | |
962 | Elf_Internal_Rela *relocs; | |
963 | Elf_Internal_Sym *local_syms; | |
964 | asection **local_sections; | |
965 | { | |
4fbc96ad | 966 | bfd *dynobj; |
013dec1a ILT |
967 | Elf_Internal_Shdr *symtab_hdr; |
968 | struct elf_link_hash_entry **sym_hashes; | |
4fbc96ad | 969 | bfd_vma *local_got_offsets; |
19bfbcbe | 970 | bfd_vma got_base; |
4fbc96ad KR |
971 | asection *sgot; |
972 | asection *splt; | |
973 | asection *sreloc; | |
013dec1a ILT |
974 | Elf_Internal_Rela *rel; |
975 | Elf_Internal_Rela *relend; | |
976 | ||
4fbc96ad | 977 | dynobj = elf_hash_table (info)->dynobj; |
013dec1a ILT |
978 | symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr; |
979 | sym_hashes = elf_sym_hashes (input_bfd); | |
4fbc96ad KR |
980 | local_got_offsets = elf_local_got_offsets (input_bfd); |
981 | ||
19bfbcbe ILT |
982 | if (elf_hash_table (info)->hgot == NULL) |
983 | got_base = 0; | |
984 | else | |
985 | got_base = elf_hash_table (info)->hgot->root.u.def.value; | |
986 | ||
4fbc96ad KR |
987 | sgot = NULL; |
988 | splt = NULL; | |
989 | sreloc = NULL; | |
013dec1a ILT |
990 | |
991 | rel = relocs; | |
992 | relend = relocs + input_section->reloc_count; | |
993 | for (; rel < relend; rel++) | |
994 | { | |
995 | int r_type; | |
82b1edf7 | 996 | reloc_howto_type *howto; |
3b3f7625 | 997 | unsigned long r_symndx; |
013dec1a ILT |
998 | struct elf_link_hash_entry *h; |
999 | Elf_Internal_Sym *sym; | |
1000 | asection *sec; | |
1001 | bfd_vma relocation; | |
1002 | bfd_reloc_status_type r; | |
1003 | ||
1004 | r_type = ELF32_R_TYPE (rel->r_info); | |
1005 | if (r_type < 0 || r_type >= (int) R_SPARC_max) | |
1006 | { | |
1007 | bfd_set_error (bfd_error_bad_value); | |
1008 | return false; | |
1009 | } | |
19bfbcbe | 1010 | howto = _bfd_sparc_elf_howto_table + r_type; |
013dec1a ILT |
1011 | |
1012 | r_symndx = ELF32_R_SYM (rel->r_info); | |
1013 | ||
1014 | if (info->relocateable) | |
1015 | { | |
1016 | /* This is a relocateable link. We don't have to change | |
1017 | anything, unless the reloc is against a section symbol, | |
1018 | in which case we have to adjust according to where the | |
1019 | section symbol winds up in the output section. */ | |
1020 | if (r_symndx < symtab_hdr->sh_info) | |
1021 | { | |
1022 | sym = local_syms + r_symndx; | |
1023 | if (ELF_ST_TYPE (sym->st_info) == STT_SECTION) | |
1024 | { | |
1025 | sec = local_sections[r_symndx]; | |
1026 | rel->r_addend += sec->output_offset + sym->st_value; | |
1027 | } | |
1028 | } | |
1029 | ||
1030 | continue; | |
1031 | } | |
1032 | ||
1033 | /* This is a final link. */ | |
1034 | h = NULL; | |
1035 | sym = NULL; | |
1036 | sec = NULL; | |
1037 | if (r_symndx < symtab_hdr->sh_info) | |
1038 | { | |
1039 | sym = local_syms + r_symndx; | |
1040 | sec = local_sections[r_symndx]; | |
1041 | relocation = (sec->output_section->vma | |
1042 | + sec->output_offset | |
1043 | + sym->st_value); | |
1044 | } | |
1045 | else | |
1046 | { | |
4fbc96ad | 1047 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; |
19bfbcbe ILT |
1048 | while (h->root.type == bfd_link_hash_indirect |
1049 | || h->root.type == bfd_link_hash_warning) | |
1050 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
f786a73f ILT |
1051 | if (h->root.type == bfd_link_hash_defined |
1052 | || h->root.type == bfd_link_hash_defweak) | |
013dec1a ILT |
1053 | { |
1054 | sec = h->root.u.def.section; | |
9b09a015 | 1055 | if ((r_type == R_SPARC_WPLT30 |
511068f6 | 1056 | && h->plt.offset != (bfd_vma) -1) |
9b09a015 ILT |
1057 | || ((r_type == R_SPARC_GOT10 |
1058 | || r_type == R_SPARC_GOT13 | |
1059 | || r_type == R_SPARC_GOT22) | |
3b3f7625 ILT |
1060 | && elf_hash_table (info)->dynamic_sections_created |
1061 | && (! info->shared | |
8519ea21 | 1062 | || (! info->symbolic && h->dynindx != -1) |
3b3f7625 ILT |
1063 | || (h->elf_link_hash_flags |
1064 | & ELF_LINK_HASH_DEF_REGULAR) == 0)) | |
9b09a015 | 1065 | || (info->shared |
6a1878c9 | 1066 | && ((! info->symbolic && h->dynindx != -1) |
53787b23 ILT |
1067 | || (h->elf_link_hash_flags |
1068 | & ELF_LINK_HASH_DEF_REGULAR) == 0) | |
9b09a015 ILT |
1069 | && (r_type == R_SPARC_8 |
1070 | || r_type == R_SPARC_16 | |
1071 | || r_type == R_SPARC_32 | |
1072 | || r_type == R_SPARC_DISP8 | |
1073 | || r_type == R_SPARC_DISP16 | |
1074 | || r_type == R_SPARC_DISP32 | |
1075 | || r_type == R_SPARC_WDISP30 | |
1076 | || r_type == R_SPARC_WDISP22 | |
19bfbcbe ILT |
1077 | || r_type == R_SPARC_WDISP19 |
1078 | || r_type == R_SPARC_WDISP16 | |
9b09a015 ILT |
1079 | || r_type == R_SPARC_HI22 |
1080 | || r_type == R_SPARC_22 | |
1081 | || r_type == R_SPARC_13 | |
1082 | || r_type == R_SPARC_LO10 | |
1083 | || r_type == R_SPARC_UA32 | |
1084 | || ((r_type == R_SPARC_PC10 | |
1085 | || r_type == R_SPARC_PC22) | |
1086 | && strcmp (h->root.root.string, | |
1087 | "_GLOBAL_OFFSET_TABLE_") != 0)))) | |
1088 | { | |
1089 | /* In these cases, we don't need the relocation | |
1090 | value. We check specially because in some | |
1091 | obscure cases sec->output_section will be NULL. */ | |
1092 | relocation = 0; | |
1093 | } | |
1094 | else | |
1095 | relocation = (h->root.u.def.value | |
1096 | + sec->output_section->vma | |
1097 | + sec->output_offset); | |
013dec1a | 1098 | } |
f786a73f | 1099 | else if (h->root.type == bfd_link_hash_undefweak) |
013dec1a | 1100 | relocation = 0; |
3b3f7625 | 1101 | else if (info->shared && !info->symbolic) |
4fbc96ad | 1102 | relocation = 0; |
013dec1a ILT |
1103 | else |
1104 | { | |
1105 | if (! ((*info->callbacks->undefined_symbol) | |
1106 | (info, h->root.root.string, input_bfd, | |
1107 | input_section, rel->r_offset))) | |
1108 | return false; | |
1109 | relocation = 0; | |
1110 | } | |
1111 | } | |
1112 | ||
4fbc96ad KR |
1113 | switch (r_type) |
1114 | { | |
1115 | case R_SPARC_GOT10: | |
1116 | case R_SPARC_GOT13: | |
1117 | case R_SPARC_GOT22: | |
1118 | /* Relocation is to the entry for this symbol in the global | |
1119 | offset table. */ | |
1120 | if (sgot == NULL) | |
1121 | { | |
1122 | sgot = bfd_get_section_by_name (dynobj, ".got"); | |
1123 | BFD_ASSERT (sgot != NULL); | |
1124 | } | |
1125 | ||
1126 | if (h != NULL) | |
1127 | { | |
12662be4 ILT |
1128 | bfd_vma off; |
1129 | ||
511068f6 | 1130 | off = h->got.offset; |
12662be4 ILT |
1131 | BFD_ASSERT (off != (bfd_vma) -1); |
1132 | ||
3b3f7625 ILT |
1133 | if (! elf_hash_table (info)->dynamic_sections_created |
1134 | || (info->shared | |
8519ea21 | 1135 | && (info->symbolic || h->dynindx == -1) |
3b3f7625 | 1136 | && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR))) |
12662be4 | 1137 | { |
3b3f7625 ILT |
1138 | /* This is actually a static link, or it is a |
1139 | -Bsymbolic link and the symbol is defined | |
8519ea21 ILT |
1140 | locally, or the symbol was forced to be local |
1141 | because of a version file. We must initialize | |
1142 | this entry in the global offset table. Since the | |
1143 | offset must always be a multiple of 4, we use the | |
1144 | least significant bit to record whether we have | |
3b3f7625 | 1145 | initialized it already. |
12662be4 ILT |
1146 | |
1147 | When doing a dynamic link, we create a .rela.got | |
1148 | relocation entry to initialize the value. This | |
1149 | is done in the finish_dynamic_symbol routine. */ | |
1150 | if ((off & 1) != 0) | |
1151 | off &= ~1; | |
1152 | else | |
1153 | { | |
1154 | bfd_put_32 (output_bfd, relocation, | |
1155 | sgot->contents + off); | |
511068f6 | 1156 | h->got.offset |= 1; |
12662be4 ILT |
1157 | } |
1158 | } | |
1159 | ||
19bfbcbe | 1160 | relocation = sgot->output_offset + off - got_base; |
4fbc96ad KR |
1161 | } |
1162 | else | |
1163 | { | |
1164 | bfd_vma off; | |
1165 | ||
1166 | BFD_ASSERT (local_got_offsets != NULL | |
1167 | && local_got_offsets[r_symndx] != (bfd_vma) -1); | |
1168 | ||
1169 | off = local_got_offsets[r_symndx]; | |
1170 | ||
1171 | /* The offset must always be a multiple of 4. We use | |
12662be4 ILT |
1172 | the least significant bit to record whether we have |
1173 | already processed this entry. */ | |
4fbc96ad KR |
1174 | if ((off & 1) != 0) |
1175 | off &= ~1; | |
1176 | else | |
1177 | { | |
4fbc96ad KR |
1178 | bfd_put_32 (output_bfd, relocation, sgot->contents + off); |
1179 | ||
12662be4 ILT |
1180 | if (info->shared) |
1181 | { | |
1182 | asection *srelgot; | |
1183 | Elf_Internal_Rela outrel; | |
1184 | ||
1185 | /* We need to generate a R_SPARC_RELATIVE reloc | |
1186 | for the dynamic linker. */ | |
1187 | srelgot = bfd_get_section_by_name (dynobj, ".rela.got"); | |
1188 | BFD_ASSERT (srelgot != NULL); | |
1189 | ||
1190 | outrel.r_offset = (sgot->output_section->vma | |
1191 | + sgot->output_offset | |
1192 | + off); | |
1193 | outrel.r_info = ELF32_R_INFO (0, R_SPARC_RELATIVE); | |
1194 | outrel.r_addend = 0; | |
1195 | bfd_elf32_swap_reloca_out (output_bfd, &outrel, | |
1196 | (((Elf32_External_Rela *) | |
1197 | srelgot->contents) | |
1198 | + srelgot->reloc_count)); | |
1199 | ++srelgot->reloc_count; | |
1200 | } | |
4fbc96ad KR |
1201 | |
1202 | local_got_offsets[r_symndx] |= 1; | |
1203 | } | |
1204 | ||
19bfbcbe | 1205 | relocation = sgot->output_offset + off - got_base; |
4fbc96ad KR |
1206 | } |
1207 | ||
1208 | break; | |
1209 | ||
1210 | case R_SPARC_WPLT30: | |
1211 | /* Relocation is to the entry for this symbol in the | |
1212 | procedure linkage table. */ | |
12662be4 ILT |
1213 | BFD_ASSERT (h != NULL); |
1214 | ||
511068f6 | 1215 | if (h->plt.offset == (bfd_vma) -1) |
12662be4 ILT |
1216 | { |
1217 | /* We didn't make a PLT entry for this symbol. This | |
3b3f7625 ILT |
1218 | happens when statically linking PIC code, or when |
1219 | using -Bsymbolic. */ | |
12662be4 ILT |
1220 | break; |
1221 | } | |
1222 | ||
4fbc96ad KR |
1223 | if (splt == NULL) |
1224 | { | |
1225 | splt = bfd_get_section_by_name (dynobj, ".plt"); | |
1226 | BFD_ASSERT (splt != NULL); | |
1227 | } | |
1228 | ||
4fbc96ad KR |
1229 | relocation = (splt->output_section->vma |
1230 | + splt->output_offset | |
511068f6 | 1231 | + h->plt.offset); |
4fbc96ad KR |
1232 | break; |
1233 | ||
1234 | case R_SPARC_PC10: | |
1235 | case R_SPARC_PC22: | |
1236 | if (h != NULL | |
1237 | && strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0) | |
1238 | break; | |
1239 | /* Fall through. */ | |
4fbc96ad KR |
1240 | case R_SPARC_DISP8: |
1241 | case R_SPARC_DISP16: | |
1242 | case R_SPARC_DISP32: | |
1243 | case R_SPARC_WDISP30: | |
1244 | case R_SPARC_WDISP22: | |
19bfbcbe ILT |
1245 | case R_SPARC_WDISP19: |
1246 | case R_SPARC_WDISP16: | |
511068f6 ILT |
1247 | if (h == NULL |
1248 | || (info->symbolic | |
1249 | && (h->elf_link_hash_flags | |
1250 | & ELF_LINK_HASH_DEF_REGULAR) != 0)) | |
3b3f7625 ILT |
1251 | break; |
1252 | /* Fall through. */ | |
1253 | case R_SPARC_8: | |
1254 | case R_SPARC_16: | |
1255 | case R_SPARC_32: | |
4fbc96ad KR |
1256 | case R_SPARC_HI22: |
1257 | case R_SPARC_22: | |
1258 | case R_SPARC_13: | |
1259 | case R_SPARC_LO10: | |
1260 | case R_SPARC_UA32: | |
ff12f303 | 1261 | if (info->shared) |
4fbc96ad KR |
1262 | { |
1263 | Elf_Internal_Rela outrel; | |
6a1878c9 | 1264 | boolean skip; |
4fbc96ad KR |
1265 | |
1266 | /* When generating a shared object, these relocations | |
1267 | are copied into the output file to be resolved at run | |
1268 | time. */ | |
1269 | ||
1270 | if (sreloc == NULL) | |
1271 | { | |
1272 | const char *name; | |
1273 | ||
ede4eed4 | 1274 | name = (bfd_elf_string_from_elf_section |
4fbc96ad KR |
1275 | (input_bfd, |
1276 | elf_elfheader (input_bfd)->e_shstrndx, | |
1277 | elf_section_data (input_section)->rel_hdr.sh_name)); | |
1278 | if (name == NULL) | |
1279 | return false; | |
1280 | ||
1281 | BFD_ASSERT (strncmp (name, ".rela", 5) == 0 | |
1282 | && strcmp (bfd_get_section_name (input_bfd, | |
1283 | input_section), | |
1284 | name + 5) == 0); | |
1285 | ||
1286 | sreloc = bfd_get_section_by_name (dynobj, name); | |
1287 | BFD_ASSERT (sreloc != NULL); | |
1288 | } | |
1289 | ||
6a1878c9 ILT |
1290 | skip = false; |
1291 | ||
1292 | if (elf_section_data (input_section)->stab_info == NULL) | |
1293 | outrel.r_offset = rel->r_offset; | |
1294 | else | |
1295 | { | |
1296 | bfd_vma off; | |
1297 | ||
1298 | off = (_bfd_stab_section_offset | |
1299 | (output_bfd, &elf_hash_table (info)->stab_info, | |
1300 | input_section, | |
1301 | &elf_section_data (input_section)->stab_info, | |
1302 | rel->r_offset)); | |
1303 | if (off == (bfd_vma) -1) | |
1304 | skip = true; | |
1305 | outrel.r_offset = off; | |
1306 | } | |
1307 | ||
1308 | outrel.r_offset += (input_section->output_section->vma | |
1309 | + input_section->output_offset); | |
1310 | ||
1311 | if (skip) | |
1312 | memset (&outrel, 0, sizeof outrel); | |
0727fe10 ILT |
1313 | /* h->dynindx may be -1 if the symbol was marked to |
1314 | become local. */ | |
6a1878c9 ILT |
1315 | else if (h != NULL |
1316 | && ((! info->symbolic && h->dynindx != -1) | |
1317 | || (h->elf_link_hash_flags | |
1318 | & ELF_LINK_HASH_DEF_REGULAR) == 0)) | |
4fbc96ad | 1319 | { |
12662be4 | 1320 | BFD_ASSERT (h->dynindx != -1); |
4fbc96ad | 1321 | outrel.r_info = ELF32_R_INFO (h->dynindx, r_type); |
14cac507 | 1322 | outrel.r_addend = rel->r_addend; |
4fbc96ad KR |
1323 | } |
1324 | else | |
1325 | { | |
14cac507 | 1326 | if (r_type == R_SPARC_32) |
4fbc96ad | 1327 | { |
14cac507 ILT |
1328 | outrel.r_info = ELF32_R_INFO (0, R_SPARC_RELATIVE); |
1329 | outrel.r_addend = relocation + rel->r_addend; | |
4fbc96ad KR |
1330 | } |
1331 | else | |
1332 | { | |
14cac507 ILT |
1333 | long indx; |
1334 | ||
53787b23 ILT |
1335 | if (h == NULL) |
1336 | sec = local_sections[r_symndx]; | |
1337 | else | |
1338 | { | |
1339 | BFD_ASSERT (h->root.type == bfd_link_hash_defined | |
1340 | || (h->root.type | |
1341 | == bfd_link_hash_defweak)); | |
1342 | sec = h->root.u.def.section; | |
1343 | } | |
14cac507 ILT |
1344 | if (sec != NULL && bfd_is_abs_section (sec)) |
1345 | indx = 0; | |
1346 | else if (sec == NULL || sec->owner == NULL) | |
1347 | { | |
1348 | bfd_set_error (bfd_error_bad_value); | |
1349 | return false; | |
1350 | } | |
1351 | else | |
1352 | { | |
1353 | asection *osec; | |
1354 | ||
1355 | osec = sec->output_section; | |
1356 | indx = elf_section_data (osec)->dynindx; | |
511068f6 ILT |
1357 | |
1358 | /* FIXME: we really should be able to link non-pic | |
1359 | shared libraries. */ | |
14cac507 | 1360 | if (indx == 0) |
511068f6 ILT |
1361 | { |
1362 | BFD_FAIL (); | |
1363 | (*_bfd_error_handler) | |
1364 | (_("%s: probably compiled without -fPIC?"), | |
1365 | bfd_get_filename (input_bfd)); | |
1366 | bfd_set_error (bfd_error_bad_value); | |
1367 | return false; | |
1368 | } | |
14cac507 ILT |
1369 | } |
1370 | ||
1371 | outrel.r_info = ELF32_R_INFO (indx, r_type); | |
1372 | outrel.r_addend = relocation + rel->r_addend; | |
4fbc96ad | 1373 | } |
4fbc96ad KR |
1374 | } |
1375 | ||
1376 | bfd_elf32_swap_reloca_out (output_bfd, &outrel, | |
1377 | (((Elf32_External_Rela *) | |
1378 | sreloc->contents) | |
1379 | + sreloc->reloc_count)); | |
1380 | ++sreloc->reloc_count; | |
1381 | ||
1382 | /* This reloc will be computed at runtime, so there's no | |
6a1878c9 ILT |
1383 | need to do anything now, unless this is a RELATIVE |
1384 | reloc in an unallocated section. */ | |
1385 | if (skip | |
1386 | || (input_section->flags & SEC_ALLOC) != 0 | |
1387 | || ELF32_R_TYPE (outrel.r_info) != R_SPARC_RELATIVE) | |
1388 | continue; | |
4fbc96ad | 1389 | } |
6a1878c9 | 1390 | break; |
4fbc96ad KR |
1391 | |
1392 | default: | |
1393 | break; | |
ff12f303 | 1394 | } |
4fbc96ad | 1395 | |
511068f6 | 1396 | if (r_type == R_SPARC_WDISP16) |
19bfbcbe ILT |
1397 | { |
1398 | bfd_vma x; | |
1399 | ||
1400 | relocation += rel->r_addend; | |
1401 | relocation -= (input_section->output_section->vma | |
1402 | + input_section->output_offset); | |
1403 | relocation -= rel->r_offset; | |
1404 | ||
1405 | x = bfd_get_32 (input_bfd, contents + rel->r_offset); | |
1406 | x |= ((((relocation >> 2) & 0xc000) << 6) | |
1407 | | ((relocation >> 2) & 0x3fff)); | |
1408 | bfd_put_32 (input_bfd, x, contents + rel->r_offset); | |
1409 | ||
1410 | if ((bfd_signed_vma) relocation < - 0x40000 | |
1411 | || (bfd_signed_vma) relocation > 0x3ffff) | |
1412 | r = bfd_reloc_overflow; | |
1413 | else | |
1414 | r = bfd_reloc_ok; | |
1415 | } | |
511068f6 ILT |
1416 | else if (r_type == R_SPARC_32LE) |
1417 | { | |
1418 | bfd_vma x; | |
1419 | ||
1420 | relocation = relocation + rel->r_addend; | |
1421 | ||
1422 | x = bfd_get_32 (input_bfd, contents + rel->r_offset); | |
1423 | x = x + relocation; | |
1424 | bfd_putl32 (/*input_bfd,*/ x, contents + rel->r_offset); | |
1425 | r = bfd_reloc_ok; | |
1426 | } | |
1427 | else | |
1428 | r = _bfd_final_link_relocate (howto, input_bfd, input_section, | |
1429 | contents, rel->r_offset, | |
1430 | relocation, rel->r_addend); | |
1431 | ||
013dec1a ILT |
1432 | |
1433 | if (r != bfd_reloc_ok) | |
1434 | { | |
1435 | switch (r) | |
1436 | { | |
1437 | default: | |
1438 | case bfd_reloc_outofrange: | |
1439 | abort (); | |
1440 | case bfd_reloc_overflow: | |
1441 | { | |
1442 | const char *name; | |
1443 | ||
1444 | if (h != NULL) | |
1445 | name = h->root.root.string; | |
1446 | else | |
1447 | { | |
ede4eed4 KR |
1448 | name = bfd_elf_string_from_elf_section (input_bfd, |
1449 | symtab_hdr->sh_link, | |
1450 | sym->st_name); | |
013dec1a ILT |
1451 | if (name == NULL) |
1452 | return false; | |
1453 | if (*name == '\0') | |
1454 | name = bfd_section_name (input_bfd, sec); | |
1455 | } | |
1456 | if (! ((*info->callbacks->reloc_overflow) | |
1457 | (info, name, howto->name, (bfd_vma) 0, | |
1458 | input_bfd, input_section, rel->r_offset))) | |
1459 | return false; | |
1460 | } | |
1461 | break; | |
1462 | } | |
1463 | } | |
1464 | } | |
1465 | ||
1466 | return true; | |
1467 | } | |
1468 | ||
1469 | /* Finish up dynamic symbol handling. We set the contents of various | |
1470 | dynamic sections here. */ | |
1471 | ||
1472 | static boolean | |
1473 | elf32_sparc_finish_dynamic_symbol (output_bfd, info, h, sym) | |
1474 | bfd *output_bfd; | |
1475 | struct bfd_link_info *info; | |
1476 | struct elf_link_hash_entry *h; | |
1477 | Elf_Internal_Sym *sym; | |
1478 | { | |
4fbc96ad | 1479 | bfd *dynobj; |
013dec1a | 1480 | |
4fbc96ad | 1481 | dynobj = elf_hash_table (info)->dynobj; |
013dec1a | 1482 | |
511068f6 | 1483 | if (h->plt.offset != (bfd_vma) -1) |
013dec1a ILT |
1484 | { |
1485 | asection *splt; | |
1486 | asection *srela; | |
1487 | Elf_Internal_Rela rela; | |
1488 | ||
4fbc96ad KR |
1489 | /* This symbol has an entry in the procedure linkage table. Set |
1490 | it up. */ | |
1491 | ||
1492 | BFD_ASSERT (h->dynindx != -1); | |
1493 | ||
1494 | splt = bfd_get_section_by_name (dynobj, ".plt"); | |
1495 | srela = bfd_get_section_by_name (dynobj, ".rela.plt"); | |
1496 | BFD_ASSERT (splt != NULL && srela != NULL); | |
013dec1a ILT |
1497 | |
1498 | /* Fill in the entry in the procedure linkage table. */ | |
1499 | bfd_put_32 (output_bfd, | |
511068f6 ILT |
1500 | PLT_ENTRY_WORD0 + h->plt.offset, |
1501 | splt->contents + h->plt.offset); | |
013dec1a ILT |
1502 | bfd_put_32 (output_bfd, |
1503 | (PLT_ENTRY_WORD1 | |
511068f6 ILT |
1504 | + (((- (h->plt.offset + 4)) >> 2) & 0x3fffff)), |
1505 | splt->contents + h->plt.offset + 4); | |
013dec1a | 1506 | bfd_put_32 (output_bfd, PLT_ENTRY_WORD2, |
511068f6 | 1507 | splt->contents + h->plt.offset + 8); |
013dec1a ILT |
1508 | |
1509 | /* Fill in the entry in the .rela.plt section. */ | |
1510 | rela.r_offset = (splt->output_section->vma | |
1511 | + splt->output_offset | |
511068f6 | 1512 | + h->plt.offset); |
013dec1a ILT |
1513 | rela.r_info = ELF32_R_INFO (h->dynindx, R_SPARC_JMP_SLOT); |
1514 | rela.r_addend = 0; | |
1515 | bfd_elf32_swap_reloca_out (output_bfd, &rela, | |
1516 | ((Elf32_External_Rela *) srela->contents | |
511068f6 | 1517 | + h->plt.offset / PLT_ENTRY_SIZE - 4)); |
4fbc96ad KR |
1518 | |
1519 | if ((h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0) | |
1520 | { | |
1521 | /* Mark the symbol as undefined, rather than as defined in | |
1522 | the .plt section. Leave the value alone. */ | |
1523 | sym->st_shndx = SHN_UNDEF; | |
1524 | } | |
1525 | } | |
1526 | ||
511068f6 | 1527 | if (h->got.offset != (bfd_vma) -1) |
4fbc96ad KR |
1528 | { |
1529 | asection *sgot; | |
1530 | asection *srela; | |
1531 | Elf_Internal_Rela rela; | |
1532 | ||
1533 | /* This symbol has an entry in the global offset table. Set it | |
1534 | up. */ | |
013dec1a | 1535 | |
4fbc96ad KR |
1536 | sgot = bfd_get_section_by_name (dynobj, ".got"); |
1537 | srela = bfd_get_section_by_name (dynobj, ".rela.got"); | |
1538 | BFD_ASSERT (sgot != NULL && srela != NULL); | |
1539 | ||
4fbc96ad KR |
1540 | rela.r_offset = (sgot->output_section->vma |
1541 | + sgot->output_offset | |
511068f6 | 1542 | + (h->got.offset &~ 1)); |
3b3f7625 ILT |
1543 | |
1544 | /* If this is a -Bsymbolic link, and the symbol is defined | |
8519ea21 ILT |
1545 | locally, we just want to emit a RELATIVE reloc. Likewise if |
1546 | the symbol was forced to be local because of a version file. | |
1547 | The entry in the global offset table will already have been | |
1548 | initialized in the relocate_section function. */ | |
3b3f7625 | 1549 | if (info->shared |
8519ea21 | 1550 | && (info->symbolic || h->dynindx == -1) |
3b3f7625 ILT |
1551 | && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR)) |
1552 | rela.r_info = ELF32_R_INFO (0, R_SPARC_RELATIVE); | |
1553 | else | |
1554 | { | |
511068f6 | 1555 | bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + h->got.offset); |
3b3f7625 ILT |
1556 | rela.r_info = ELF32_R_INFO (h->dynindx, R_SPARC_GLOB_DAT); |
1557 | } | |
1558 | ||
4fbc96ad KR |
1559 | rela.r_addend = 0; |
1560 | bfd_elf32_swap_reloca_out (output_bfd, &rela, | |
1561 | ((Elf32_External_Rela *) srela->contents | |
1562 | + srela->reloc_count)); | |
1563 | ++srela->reloc_count; | |
013dec1a | 1564 | } |
4fbc96ad KR |
1565 | |
1566 | if ((h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_COPY) != 0) | |
013dec1a | 1567 | { |
4fbc96ad KR |
1568 | asection *s; |
1569 | Elf_Internal_Rela rela; | |
013dec1a | 1570 | |
4fbc96ad | 1571 | /* This symbols needs a copy reloc. Set it up. */ |
013dec1a | 1572 | |
4fbc96ad KR |
1573 | BFD_ASSERT (h->dynindx != -1); |
1574 | ||
1575 | s = bfd_get_section_by_name (h->root.u.def.section->owner, | |
1576 | ".rela.bss"); | |
1577 | BFD_ASSERT (s != NULL); | |
1578 | ||
1579 | rela.r_offset = (h->root.u.def.value | |
1580 | + h->root.u.def.section->output_section->vma | |
1581 | + h->root.u.def.section->output_offset); | |
1582 | rela.r_info = ELF32_R_INFO (h->dynindx, R_SPARC_COPY); | |
1583 | rela.r_addend = 0; | |
1584 | bfd_elf32_swap_reloca_out (output_bfd, &rela, | |
1585 | ((Elf32_External_Rela *) s->contents | |
1586 | + s->reloc_count)); | |
1587 | ++s->reloc_count; | |
013dec1a ILT |
1588 | } |
1589 | ||
4fbc96ad KR |
1590 | /* Mark some specially defined symbols as absolute. */ |
1591 | if (strcmp (h->root.root.string, "_DYNAMIC") == 0 | |
1592 | || strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0 | |
1593 | || strcmp (h->root.root.string, "_PROCEDURE_LINKAGE_TABLE_") == 0) | |
1594 | sym->st_shndx = SHN_ABS; | |
1595 | ||
013dec1a ILT |
1596 | return true; |
1597 | } | |
1598 | ||
1599 | /* Finish up the dynamic sections. */ | |
1600 | ||
1601 | static boolean | |
1602 | elf32_sparc_finish_dynamic_sections (output_bfd, info) | |
1603 | bfd *output_bfd; | |
1604 | struct bfd_link_info *info; | |
1605 | { | |
4fbc96ad | 1606 | bfd *dynobj; |
013dec1a | 1607 | asection *sdyn; |
12662be4 | 1608 | asection *sgot; |
013dec1a | 1609 | |
4fbc96ad KR |
1610 | dynobj = elf_hash_table (info)->dynobj; |
1611 | ||
4fbc96ad | 1612 | sdyn = bfd_get_section_by_name (dynobj, ".dynamic"); |
013dec1a | 1613 | |
12662be4 | 1614 | if (elf_hash_table (info)->dynamic_sections_created) |
013dec1a | 1615 | { |
12662be4 ILT |
1616 | asection *splt; |
1617 | Elf32_External_Dyn *dyncon, *dynconend; | |
013dec1a | 1618 | |
12662be4 ILT |
1619 | splt = bfd_get_section_by_name (dynobj, ".plt"); |
1620 | BFD_ASSERT (splt != NULL && sdyn != NULL); | |
013dec1a | 1621 | |
12662be4 ILT |
1622 | dyncon = (Elf32_External_Dyn *) sdyn->contents; |
1623 | dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->_raw_size); | |
1624 | for (; dyncon < dynconend; dyncon++) | |
013dec1a | 1625 | { |
12662be4 ILT |
1626 | Elf_Internal_Dyn dyn; |
1627 | const char *name; | |
1628 | boolean size; | |
013dec1a | 1629 | |
12662be4 | 1630 | bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn); |
013dec1a | 1631 | |
12662be4 ILT |
1632 | switch (dyn.d_tag) |
1633 | { | |
1634 | case DT_PLTGOT: name = ".plt"; size = false; break; | |
1635 | case DT_PLTRELSZ: name = ".rela.plt"; size = true; break; | |
1636 | case DT_JMPREL: name = ".rela.plt"; size = false; break; | |
1637 | default: name = NULL; size = false; break; | |
1638 | } | |
1639 | ||
1640 | if (name != NULL) | |
013dec1a | 1641 | { |
12662be4 ILT |
1642 | asection *s; |
1643 | ||
1644 | s = bfd_get_section_by_name (output_bfd, name); | |
14cac507 ILT |
1645 | if (s == NULL) |
1646 | dyn.d_un.d_val = 0; | |
013dec1a | 1647 | else |
12662be4 | 1648 | { |
14cac507 ILT |
1649 | if (! size) |
1650 | dyn.d_un.d_ptr = s->vma; | |
12662be4 | 1651 | else |
14cac507 ILT |
1652 | { |
1653 | if (s->_cooked_size != 0) | |
1654 | dyn.d_un.d_val = s->_cooked_size; | |
1655 | else | |
1656 | dyn.d_un.d_val = s->_raw_size; | |
1657 | } | |
12662be4 ILT |
1658 | } |
1659 | bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon); | |
013dec1a | 1660 | } |
013dec1a | 1661 | } |
013dec1a | 1662 | |
12662be4 ILT |
1663 | /* Clear the first four entries in the procedure linkage table, |
1664 | and put a nop in the last four bytes. */ | |
1665 | if (splt->_raw_size > 0) | |
1666 | { | |
1667 | memset (splt->contents, 0, 4 * PLT_ENTRY_SIZE); | |
1668 | bfd_put_32 (output_bfd, SPARC_NOP, | |
1669 | splt->contents + splt->_raw_size - 4); | |
1670 | } | |
1671 | ||
1672 | elf_section_data (splt->output_section)->this_hdr.sh_entsize = | |
1673 | PLT_ENTRY_SIZE; | |
013dec1a ILT |
1674 | } |
1675 | ||
1676 | /* Set the first entry in the global offset table to the address of | |
1677 | the dynamic section. */ | |
12662be4 ILT |
1678 | sgot = bfd_get_section_by_name (dynobj, ".got"); |
1679 | BFD_ASSERT (sgot != NULL); | |
013dec1a | 1680 | if (sgot->_raw_size > 0) |
12662be4 ILT |
1681 | { |
1682 | if (sdyn == NULL) | |
1683 | bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents); | |
1684 | else | |
1685 | bfd_put_32 (output_bfd, | |
1686 | sdyn->output_section->vma + sdyn->output_offset, | |
1687 | sgot->contents); | |
1688 | } | |
013dec1a ILT |
1689 | |
1690 | elf_section_data (sgot->output_section)->this_hdr.sh_entsize = 4; | |
013dec1a | 1691 | |
14cac507 ILT |
1692 | if (info->shared) |
1693 | { | |
1694 | asection *sdynsym; | |
1695 | asection *s; | |
1696 | Elf_Internal_Sym sym; | |
e9148724 | 1697 | int c; |
14cac507 ILT |
1698 | |
1699 | /* Set up the section symbols for the output sections. */ | |
1700 | ||
1701 | sdynsym = bfd_get_section_by_name (dynobj, ".dynsym"); | |
1702 | BFD_ASSERT (sdynsym != NULL); | |
1703 | ||
1704 | sym.st_size = 0; | |
1705 | sym.st_name = 0; | |
1706 | sym.st_info = ELF_ST_INFO (STB_LOCAL, STT_SECTION); | |
1707 | sym.st_other = 0; | |
1708 | ||
e9148724 | 1709 | c = 0; |
14cac507 ILT |
1710 | for (s = output_bfd->sections; s != NULL; s = s->next) |
1711 | { | |
1712 | int indx; | |
1713 | ||
e9148724 ILT |
1714 | if (elf_section_data (s)->dynindx == 0) |
1715 | continue; | |
1716 | ||
14cac507 ILT |
1717 | sym.st_value = s->vma; |
1718 | ||
1719 | indx = elf_section_data (s)->this_idx; | |
1720 | BFD_ASSERT (indx > 0); | |
1721 | sym.st_shndx = indx; | |
1722 | ||
1723 | bfd_elf32_swap_symbol_out (output_bfd, &sym, | |
3b3f7625 ILT |
1724 | (PTR) (((Elf32_External_Sym *) |
1725 | sdynsym->contents) | |
1726 | + elf_section_data (s)->dynindx)); | |
e9148724 ILT |
1727 | |
1728 | ++c; | |
14cac507 ILT |
1729 | } |
1730 | ||
1731 | /* Set the sh_info field of the output .dynsym section to the | |
1732 | index of the first global symbol. */ | |
e9148724 | 1733 | elf_section_data (sdynsym->output_section)->this_hdr.sh_info = c + 1; |
14cac507 ILT |
1734 | } |
1735 | ||
013dec1a ILT |
1736 | return true; |
1737 | } | |
5bc513b4 | 1738 | \f |
53787b23 | 1739 | /* Functions for dealing with the e_flags field. |
5bc513b4 | 1740 | |
53787b23 ILT |
1741 | We don't define set_private_flags or copy_private_bfd_data because |
1742 | the only currently defined values are based on the bfd mach number, | |
1743 | so we use the latter instead and defer setting e_flags until the | |
1744 | file is written out. */ | |
5bc513b4 DE |
1745 | |
1746 | /* Merge backend specific data from an object file to the output | |
1747 | object file when linking. */ | |
1748 | ||
1749 | static boolean | |
1750 | elf32_sparc_merge_private_bfd_data (ibfd, obfd) | |
1751 | bfd *ibfd; | |
1752 | bfd *obfd; | |
1753 | { | |
5bc513b4 | 1754 | boolean error; |
511068f6 | 1755 | static int previous_ibfd_e_flags = -1; |
5bc513b4 | 1756 | |
ff12f303 ILT |
1757 | if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour |
1758 | || bfd_get_flavour (obfd) != bfd_target_elf_flavour) | |
5bc513b4 DE |
1759 | return true; |
1760 | ||
1761 | error = false; | |
1762 | ||
53787b23 ILT |
1763 | #if 0 |
1764 | /* ??? The native linker doesn't do this so we can't (otherwise gcc would | |
1765 | have to know which linker is being used). Instead, the native linker | |
1766 | bumps up the architecture level when it has to. However, I still think | |
1767 | warnings like these are good, so it would be nice to have them turned on | |
1768 | by some option. */ | |
1769 | ||
5bc513b4 DE |
1770 | /* If the output machine is normal sparc, we can't allow v9 input files. */ |
1771 | if (bfd_get_mach (obfd) == bfd_mach_sparc | |
1772 | && (bfd_get_mach (ibfd) == bfd_mach_sparc_v8plus | |
1773 | || bfd_get_mach (ibfd) == bfd_mach_sparc_v8plusa)) | |
1774 | { | |
1775 | error = true; | |
1776 | (*_bfd_error_handler) | |
511068f6 | 1777 | (_("%s: compiled for a v8plus system and target is v8"), |
5bc513b4 DE |
1778 | bfd_get_filename (ibfd)); |
1779 | } | |
1780 | /* If the output machine is v9, we can't allow v9+vis input files. */ | |
1781 | if (bfd_get_mach (obfd) == bfd_mach_sparc_v8plus | |
1782 | && bfd_get_mach (ibfd) == bfd_mach_sparc_v8plusa) | |
1783 | { | |
1784 | error = true; | |
1785 | (*_bfd_error_handler) | |
511068f6 | 1786 | (_("%s: compiled for a v8plusa system and target is v8plus"), |
5bc513b4 DE |
1787 | bfd_get_filename (ibfd)); |
1788 | } | |
53787b23 ILT |
1789 | #else |
1790 | if (bfd_get_mach (ibfd) >= bfd_mach_sparc_v9) | |
5bc513b4 | 1791 | { |
53787b23 ILT |
1792 | error = true; |
1793 | (*_bfd_error_handler) | |
511068f6 | 1794 | (_("%s: compiled for a 64 bit system and target is 32 bit"), |
53787b23 | 1795 | bfd_get_filename (ibfd)); |
5bc513b4 | 1796 | } |
53787b23 ILT |
1797 | else if (bfd_get_mach (obfd) < bfd_get_mach (ibfd)) |
1798 | bfd_set_arch_mach (obfd, bfd_arch_sparc, bfd_get_mach (ibfd)); | |
1799 | #endif | |
5bc513b4 | 1800 | |
511068f6 ILT |
1801 | if (((elf_elfheader (ibfd)->e_flags & EF_SPARC_LEDATA) |
1802 | != previous_ibfd_e_flags) | |
1803 | && previous_ibfd_e_flags >= 0) | |
1804 | { | |
1805 | (*_bfd_error_handler) | |
1806 | (_("%s: linking little endian files with big endian files"), | |
1807 | bfd_get_filename (ibfd)); | |
1808 | error = true; | |
1809 | } | |
1810 | previous_ibfd_e_flags = elf_elfheader (ibfd)->e_flags & EF_SPARC_LEDATA; | |
1811 | ||
5bc513b4 DE |
1812 | if (error) |
1813 | { | |
1814 | bfd_set_error (bfd_error_bad_value); | |
1815 | return false; | |
1816 | } | |
1817 | ||
1818 | return true; | |
1819 | } | |
1820 | \f | |
1821 | /* Set the right machine number. */ | |
013dec1a | 1822 | |
5bc513b4 DE |
1823 | static boolean |
1824 | elf32_sparc_object_p (abfd) | |
1825 | bfd *abfd; | |
1826 | { | |
1827 | if (elf_elfheader (abfd)->e_machine == EM_SPARC32PLUS) | |
53787b23 ILT |
1828 | { |
1829 | if (elf_elfheader (abfd)->e_flags & EF_SPARC_SUN_US1) | |
1830 | return bfd_default_set_arch_mach (abfd, bfd_arch_sparc, | |
1831 | bfd_mach_sparc_v8plusa); | |
1832 | else if (elf_elfheader (abfd)->e_flags & EF_SPARC_32PLUS) | |
1833 | return bfd_default_set_arch_mach (abfd, bfd_arch_sparc, | |
1834 | bfd_mach_sparc_v8plus); | |
1835 | else | |
1836 | return false; | |
1837 | } | |
511068f6 ILT |
1838 | else if (elf_elfheader (abfd)->e_flags & EF_SPARC_LEDATA) |
1839 | return bfd_default_set_arch_mach (abfd, bfd_arch_sparc, | |
1840 | bfd_mach_sparc_sparclite_le); | |
5bc513b4 DE |
1841 | else |
1842 | return bfd_default_set_arch_mach (abfd, bfd_arch_sparc, bfd_mach_sparc); | |
1843 | } | |
1844 | ||
1845 | /* The final processing done just before writing out the object file. | |
1846 | We need to set the e_machine field appropriately. */ | |
1847 | ||
1848 | static void | |
1849 | elf32_sparc_final_write_processing (abfd, linker) | |
1850 | bfd *abfd; | |
1851 | boolean linker; | |
1852 | { | |
53787b23 | 1853 | switch (bfd_get_mach (abfd)) |
5bc513b4 | 1854 | { |
53787b23 ILT |
1855 | case bfd_mach_sparc : |
1856 | break; /* nothing to do */ | |
1857 | case bfd_mach_sparc_v8plus : | |
5bc513b4 | 1858 | elf_elfheader (abfd)->e_machine = EM_SPARC32PLUS; |
5bc513b4 | 1859 | elf_elfheader (abfd)->e_flags &=~ EF_SPARC_32PLUS_MASK; |
5bc513b4 | 1860 | elf_elfheader (abfd)->e_flags |= EF_SPARC_32PLUS; |
53787b23 ILT |
1861 | break; |
1862 | case bfd_mach_sparc_v8plusa : | |
1863 | elf_elfheader (abfd)->e_machine = EM_SPARC32PLUS; | |
1864 | elf_elfheader (abfd)->e_flags &=~ EF_SPARC_32PLUS_MASK; | |
1865 | elf_elfheader (abfd)->e_flags |= EF_SPARC_32PLUS | EF_SPARC_SUN_US1; | |
1866 | break; | |
511068f6 ILT |
1867 | case bfd_mach_sparc_sparclite_le : |
1868 | elf_elfheader (abfd)->e_machine = EM_SPARC; | |
1869 | elf_elfheader (abfd)->e_flags |= EF_SPARC_LEDATA; | |
1870 | break; | |
53787b23 ILT |
1871 | default : |
1872 | abort (); | |
5bc513b4 DE |
1873 | } |
1874 | } | |
5bc513b4 | 1875 | \f |
32090b8e KR |
1876 | #define TARGET_BIG_SYM bfd_elf32_sparc_vec |
1877 | #define TARGET_BIG_NAME "elf32-sparc" | |
1878 | #define ELF_ARCH bfd_arch_sparc | |
013dec1a | 1879 | #define ELF_MACHINE_CODE EM_SPARC |
6b3eb07e | 1880 | #define ELF_MACHINE_ALT1 EM_SPARC32PLUS |
013dec1a | 1881 | #define ELF_MAXPAGESIZE 0x10000 |
19bfbcbe ILT |
1882 | |
1883 | #define bfd_elf32_bfd_reloc_type_lookup elf32_sparc_reloc_type_lookup | |
ff12f303 | 1884 | #define elf_info_to_howto elf32_sparc_info_to_howto |
013dec1a | 1885 | #define elf_backend_create_dynamic_sections \ |
ede4eed4 | 1886 | _bfd_elf_create_dynamic_sections |
4fbc96ad | 1887 | #define elf_backend_check_relocs elf32_sparc_check_relocs |
013dec1a ILT |
1888 | #define elf_backend_adjust_dynamic_symbol \ |
1889 | elf32_sparc_adjust_dynamic_symbol | |
1890 | #define elf_backend_size_dynamic_sections \ | |
1891 | elf32_sparc_size_dynamic_sections | |
1892 | #define elf_backend_relocate_section elf32_sparc_relocate_section | |
1893 | #define elf_backend_finish_dynamic_symbol \ | |
1894 | elf32_sparc_finish_dynamic_symbol | |
1895 | #define elf_backend_finish_dynamic_sections \ | |
1896 | elf32_sparc_finish_dynamic_sections | |
5bc513b4 DE |
1897 | #define bfd_elf32_bfd_merge_private_bfd_data \ |
1898 | elf32_sparc_merge_private_bfd_data | |
1899 | #define elf_backend_object_p elf32_sparc_object_p | |
1900 | #define elf_backend_final_write_processing \ | |
1901 | elf32_sparc_final_write_processing | |
ede4eed4 | 1902 | #define elf_backend_want_got_plt 0 |
3b3f7625 | 1903 | #define elf_backend_plt_readonly 0 |
ede4eed4 | 1904 | #define elf_backend_want_plt_sym 1 |
511068f6 ILT |
1905 | #define elf_backend_got_header_size 4 |
1906 | #define elf_backend_plt_header_size (4*PLT_ENTRY_SIZE) | |
32090b8e KR |
1907 | |
1908 | #include "elf32-target.h" |