Commit | Line | Data |
---|---|---|
252b5132 | 1 | /* SPARC-specific support for 64-bit ELF |
7898deda | 2 | Copyright 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001 |
37fb6db1 | 3 | Free Software Foundation, Inc. |
252b5132 RH |
4 | |
5 | This file is part of BFD, the Binary File Descriptor library. | |
6 | ||
7 | This program is free software; you can redistribute it and/or modify | |
8 | it under the terms of the GNU General Public License as published by | |
9 | the Free Software Foundation; either version 2 of the License, or | |
10 | (at your option) any later version. | |
11 | ||
12 | This program is distributed in the hope that it will be useful, | |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
16 | ||
17 | You should have received a copy of the GNU General Public License | |
18 | along with this program; if not, write to the Free Software | |
19 | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ | |
20 | ||
21 | #include "bfd.h" | |
22 | #include "sysdep.h" | |
23 | #include "libbfd.h" | |
24 | #include "elf-bfd.h" | |
f7775d95 | 25 | #include "opcode/sparc.h" |
252b5132 RH |
26 | |
27 | /* This is defined if one wants to build upward compatible binaries | |
28 | with the original sparc64-elf toolchain. The support is kept in for | |
29 | now but is turned off by default. dje 970930 */ | |
30 | /*#define SPARC64_OLD_RELOCS*/ | |
31 | ||
32 | #include "elf/sparc.h" | |
33 | ||
34 | /* In case we're on a 32-bit machine, construct a 64-bit "-1" value. */ | |
35 | #define MINUS_ONE (~ (bfd_vma) 0) | |
36 | ||
587ff49e | 37 | static struct bfd_link_hash_table * sparc64_elf_bfd_link_hash_table_create |
99c79b2e AJ |
38 | PARAMS ((bfd *)); |
39 | static bfd_reloc_status_type init_insn_reloc | |
40 | PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, | |
41 | bfd *, bfd_vma *, bfd_vma *)); | |
252b5132 RH |
42 | static reloc_howto_type *sparc64_elf_reloc_type_lookup |
43 | PARAMS ((bfd *, bfd_reloc_code_real_type)); | |
44 | static void sparc64_elf_info_to_howto | |
45 | PARAMS ((bfd *, arelent *, Elf_Internal_Rela *)); | |
46 | ||
47 | static void sparc64_elf_build_plt | |
99c79b2e | 48 | PARAMS ((bfd *, unsigned char *, int)); |
252b5132 | 49 | static bfd_vma sparc64_elf_plt_entry_offset |
dc810e39 | 50 | PARAMS ((bfd_vma)); |
252b5132 | 51 | static bfd_vma sparc64_elf_plt_ptr_offset |
dc810e39 | 52 | PARAMS ((bfd_vma, bfd_vma)); |
252b5132 RH |
53 | |
54 | static boolean sparc64_elf_check_relocs | |
99c79b2e AJ |
55 | PARAMS ((bfd *, struct bfd_link_info *, asection *sec, |
56 | const Elf_Internal_Rela *)); | |
252b5132 | 57 | static boolean sparc64_elf_adjust_dynamic_symbol |
99c79b2e | 58 | PARAMS ((struct bfd_link_info *, struct elf_link_hash_entry *)); |
252b5132 | 59 | static boolean sparc64_elf_size_dynamic_sections |
99c79b2e | 60 | PARAMS ((bfd *, struct bfd_link_info *)); |
587ff49e RH |
61 | static int sparc64_elf_get_symbol_type |
62 | PARAMS (( Elf_Internal_Sym *, int)); | |
63 | static boolean sparc64_elf_add_symbol_hook | |
64 | PARAMS ((bfd *, struct bfd_link_info *, const Elf_Internal_Sym *, | |
99c79b2e | 65 | const char **, flagword *, asection **, bfd_vma *)); |
5d964dfa AM |
66 | static boolean sparc64_elf_output_arch_syms |
67 | PARAMS ((bfd *, struct bfd_link_info *, PTR, | |
68 | boolean (*) (PTR, const char *, Elf_Internal_Sym *, asection *))); | |
587ff49e RH |
69 | static void sparc64_elf_symbol_processing |
70 | PARAMS ((bfd *, asymbol *)); | |
252b5132 | 71 | |
069f40e5 JJ |
72 | static boolean sparc64_elf_copy_private_bfd_data |
73 | PARAMS ((bfd *, bfd *)); | |
252b5132 RH |
74 | static boolean sparc64_elf_merge_private_bfd_data |
75 | PARAMS ((bfd *, bfd *)); | |
76 | ||
99c79b2e AJ |
77 | static const char *sparc64_elf_print_symbol_all |
78 | PARAMS ((bfd *, PTR, asymbol *)); | |
f7775d95 JJ |
79 | static boolean sparc64_elf_relax_section |
80 | PARAMS ((bfd *, asection *, struct bfd_link_info *, boolean *)); | |
252b5132 RH |
81 | static boolean sparc64_elf_relocate_section |
82 | PARAMS ((bfd *, struct bfd_link_info *, bfd *, asection *, bfd_byte *, | |
83 | Elf_Internal_Rela *, Elf_Internal_Sym *, asection **)); | |
99c79b2e AJ |
84 | static boolean sparc64_elf_finish_dynamic_symbol |
85 | PARAMS ((bfd *, struct bfd_link_info *, struct elf_link_hash_entry *, | |
86 | Elf_Internal_Sym *)); | |
87 | static boolean sparc64_elf_finish_dynamic_sections | |
88 | PARAMS ((bfd *, struct bfd_link_info *)); | |
252b5132 | 89 | static boolean sparc64_elf_object_p PARAMS ((bfd *)); |
f65054f7 RH |
90 | static long sparc64_elf_get_reloc_upper_bound PARAMS ((bfd *, asection *)); |
91 | static long sparc64_elf_get_dynamic_reloc_upper_bound PARAMS ((bfd *)); | |
92 | static boolean sparc64_elf_slurp_one_reloc_table | |
93 | PARAMS ((bfd *, asection *, Elf_Internal_Shdr *, asymbol **, boolean)); | |
94 | static boolean sparc64_elf_slurp_reloc_table | |
95 | PARAMS ((bfd *, asection *, asymbol **, boolean)); | |
96 | static long sparc64_elf_canonicalize_dynamic_reloc | |
97 | PARAMS ((bfd *, arelent **, asymbol **)); | |
98 | static void sparc64_elf_write_relocs PARAMS ((bfd *, asection *, PTR)); | |
db6751f2 | 99 | static enum elf_reloc_type_class sparc64_elf_reloc_type_class PARAMS ((int)); |
252b5132 RH |
100 | \f |
101 | /* The relocation "howto" table. */ | |
102 | ||
103 | static bfd_reloc_status_type sparc_elf_notsup_reloc | |
104 | PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **)); | |
105 | static bfd_reloc_status_type sparc_elf_wdisp16_reloc | |
106 | PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **)); | |
107 | static bfd_reloc_status_type sparc_elf_hix22_reloc | |
108 | PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **)); | |
109 | static bfd_reloc_status_type sparc_elf_lox10_reloc | |
110 | PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **)); | |
111 | ||
112 | static reloc_howto_type sparc64_elf_howto_table[] = | |
113 | { | |
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_8, 0,0, 8,false,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_8", false,0,0x000000ff,true), | |
116 | HOWTO(R_SPARC_16, 0,1,16,false,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_16", false,0,0x0000ffff,true), | |
117 | HOWTO(R_SPARC_32, 0,2,32,false,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_32", false,0,0xffffffff,true), | |
118 | HOWTO(R_SPARC_DISP8, 0,0, 8,true, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_DISP8", false,0,0x000000ff,true), | |
119 | HOWTO(R_SPARC_DISP16, 0,1,16,true, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_DISP16", false,0,0x0000ffff,true), | |
120 | HOWTO(R_SPARC_DISP32, 0,2,32,true, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_DISP32", false,0,0x00ffffff,true), | |
121 | HOWTO(R_SPARC_WDISP30, 2,2,30,true, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_WDISP30", false,0,0x3fffffff,true), | |
122 | HOWTO(R_SPARC_WDISP22, 2,2,22,true, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_WDISP22", false,0,0x003fffff,true), | |
123 | HOWTO(R_SPARC_HI22, 10,2,22,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_HI22", false,0,0x003fffff,true), | |
124 | HOWTO(R_SPARC_22, 0,2,22,false,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_22", false,0,0x003fffff,true), | |
125 | HOWTO(R_SPARC_13, 0,2,13,false,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_13", false,0,0x00001fff,true), | |
126 | HOWTO(R_SPARC_LO10, 0,2,10,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_LO10", false,0,0x000003ff,true), | |
127 | HOWTO(R_SPARC_GOT10, 0,2,10,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_GOT10", false,0,0x000003ff,true), | |
128 | HOWTO(R_SPARC_GOT13, 0,2,13,false,0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_GOT13", false,0,0x00001fff,true), | |
129 | HOWTO(R_SPARC_GOT22, 10,2,22,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_GOT22", false,0,0x003fffff,true), | |
130 | HOWTO(R_SPARC_PC10, 0,2,10,true, 0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_PC10", false,0,0x000003ff,true), | |
131 | HOWTO(R_SPARC_PC22, 10,2,22,true, 0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_PC22", false,0,0x003fffff,true), | |
132 | HOWTO(R_SPARC_WPLT30, 2,2,30,true, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_WPLT30", false,0,0x3fffffff,true), | |
133 | HOWTO(R_SPARC_COPY, 0,0,00,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_COPY", false,0,0x00000000,true), | |
134 | 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), | |
135 | 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), | |
136 | HOWTO(R_SPARC_RELATIVE, 0,0,00,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_RELATIVE",false,0,0x00000000,true), | |
9fc54e19 | 137 | HOWTO(R_SPARC_UA32, 0,2,32,false,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_UA32", false,0,0xffffffff,true), |
252b5132 RH |
138 | #ifndef SPARC64_OLD_RELOCS |
139 | /* These aren't implemented yet. */ | |
140 | HOWTO(R_SPARC_PLT32, 0,0,00,false,0,complain_overflow_dont, sparc_elf_notsup_reloc, "R_SPARC_PLT32", false,0,0x00000000,true), | |
141 | HOWTO(R_SPARC_HIPLT22, 0,0,00,false,0,complain_overflow_dont, sparc_elf_notsup_reloc, "R_SPARC_HIPLT22", false,0,0x00000000,true), | |
142 | HOWTO(R_SPARC_LOPLT10, 0,0,00,false,0,complain_overflow_dont, sparc_elf_notsup_reloc, "R_SPARC_LOPLT10", false,0,0x00000000,true), | |
143 | HOWTO(R_SPARC_PCPLT32, 0,0,00,false,0,complain_overflow_dont, sparc_elf_notsup_reloc, "R_SPARC_PCPLT32", false,0,0x00000000,true), | |
144 | HOWTO(R_SPARC_PCPLT22, 0,0,00,false,0,complain_overflow_dont, sparc_elf_notsup_reloc, "R_SPARC_PCPLT22", false,0,0x00000000,true), | |
145 | HOWTO(R_SPARC_PCPLT10, 0,0,00,false,0,complain_overflow_dont, sparc_elf_notsup_reloc, "R_SPARC_PCPLT10", false,0,0x00000000,true), | |
146 | #endif | |
147 | HOWTO(R_SPARC_10, 0,2,10,false,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_10", false,0,0x000003ff,true), | |
148 | HOWTO(R_SPARC_11, 0,2,11,false,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_11", false,0,0x000007ff,true), | |
149 | HOWTO(R_SPARC_64, 0,4,64,false,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_64", false,0,MINUS_ONE, true), | |
150 | HOWTO(R_SPARC_OLO10, 0,2,13,false,0,complain_overflow_signed, sparc_elf_notsup_reloc, "R_SPARC_OLO10", false,0,0x00001fff,true), | |
151 | HOWTO(R_SPARC_HH22, 42,2,22,false,0,complain_overflow_unsigned,bfd_elf_generic_reloc, "R_SPARC_HH22", false,0,0x003fffff,true), | |
152 | HOWTO(R_SPARC_HM10, 32,2,10,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_HM10", false,0,0x000003ff,true), | |
153 | HOWTO(R_SPARC_LM22, 10,2,22,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_LM22", false,0,0x003fffff,true), | |
154 | HOWTO(R_SPARC_PC_HH22, 42,2,22,true, 0,complain_overflow_unsigned,bfd_elf_generic_reloc, "R_SPARC_PC_HH22", false,0,0x003fffff,true), | |
155 | HOWTO(R_SPARC_PC_HM10, 32,2,10,true, 0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_PC_HM10", false,0,0x000003ff,true), | |
156 | HOWTO(R_SPARC_PC_LM22, 10,2,22,true, 0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_PC_LM22", false,0,0x003fffff,true), | |
157 | HOWTO(R_SPARC_WDISP16, 2,2,16,true, 0,complain_overflow_signed, sparc_elf_wdisp16_reloc,"R_SPARC_WDISP16", false,0,0x00000000,true), | |
158 | HOWTO(R_SPARC_WDISP19, 2,2,19,true, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_WDISP19", false,0,0x0007ffff,true), | |
159 | 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), | |
160 | HOWTO(R_SPARC_7, 0,2, 7,false,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_7", false,0,0x0000007f,true), | |
161 | HOWTO(R_SPARC_5, 0,2, 5,false,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_5", false,0,0x0000001f,true), | |
162 | HOWTO(R_SPARC_6, 0,2, 6,false,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_6", false,0,0x0000003f,true), | |
163 | HOWTO(R_SPARC_DISP64, 0,4,64,true, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_DISP64", false,0,MINUS_ONE, true), | |
164 | HOWTO(R_SPARC_PLT64, 0,4,64,false,0,complain_overflow_bitfield,sparc_elf_notsup_reloc, "R_SPARC_PLT64", false,0,MINUS_ONE, false), | |
165 | HOWTO(R_SPARC_HIX22, 0,4, 0,false,0,complain_overflow_bitfield,sparc_elf_hix22_reloc, "R_SPARC_HIX22", false,0,MINUS_ONE, false), | |
166 | HOWTO(R_SPARC_LOX10, 0,4, 0,false,0,complain_overflow_dont, sparc_elf_lox10_reloc, "R_SPARC_LOX10", false,0,MINUS_ONE, false), | |
167 | HOWTO(R_SPARC_H44, 22,2,22,false,0,complain_overflow_unsigned,bfd_elf_generic_reloc, "R_SPARC_H44", false,0,0x003fffff,false), | |
168 | HOWTO(R_SPARC_M44, 12,2,10,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_M44", false,0,0x000003ff,false), | |
169 | HOWTO(R_SPARC_L44, 0,2,13,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_L44", false,0,0x00000fff,false), | |
170 | HOWTO(R_SPARC_REGISTER, 0,4, 0,false,0,complain_overflow_bitfield,sparc_elf_notsup_reloc, "R_SPARC_REGISTER",false,0,MINUS_ONE, false), | |
171 | HOWTO(R_SPARC_UA64, 0,4,64,false,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_UA64", false,0,MINUS_ONE, true), | |
172 | HOWTO(R_SPARC_UA16, 0,1,16,false,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_UA16", false,0,0x0000ffff,true) | |
173 | }; | |
174 | ||
175 | struct elf_reloc_map { | |
176 | bfd_reloc_code_real_type bfd_reloc_val; | |
177 | unsigned char elf_reloc_val; | |
178 | }; | |
179 | ||
dc810e39 | 180 | static const struct elf_reloc_map sparc_reloc_map[] = |
252b5132 RH |
181 | { |
182 | { BFD_RELOC_NONE, R_SPARC_NONE, }, | |
183 | { BFD_RELOC_16, R_SPARC_16, }, | |
184 | { BFD_RELOC_8, R_SPARC_8 }, | |
185 | { BFD_RELOC_8_PCREL, R_SPARC_DISP8 }, | |
186 | { BFD_RELOC_CTOR, R_SPARC_64 }, | |
187 | { BFD_RELOC_32, R_SPARC_32 }, | |
188 | { BFD_RELOC_32_PCREL, R_SPARC_DISP32 }, | |
189 | { BFD_RELOC_HI22, R_SPARC_HI22 }, | |
190 | { BFD_RELOC_LO10, R_SPARC_LO10, }, | |
191 | { BFD_RELOC_32_PCREL_S2, R_SPARC_WDISP30 }, | |
192 | { BFD_RELOC_SPARC22, R_SPARC_22 }, | |
193 | { BFD_RELOC_SPARC13, R_SPARC_13 }, | |
194 | { BFD_RELOC_SPARC_GOT10, R_SPARC_GOT10 }, | |
195 | { BFD_RELOC_SPARC_GOT13, R_SPARC_GOT13 }, | |
196 | { BFD_RELOC_SPARC_GOT22, R_SPARC_GOT22 }, | |
197 | { BFD_RELOC_SPARC_PC10, R_SPARC_PC10 }, | |
198 | { BFD_RELOC_SPARC_PC22, R_SPARC_PC22 }, | |
199 | { BFD_RELOC_SPARC_WPLT30, R_SPARC_WPLT30 }, | |
200 | { BFD_RELOC_SPARC_COPY, R_SPARC_COPY }, | |
201 | { BFD_RELOC_SPARC_GLOB_DAT, R_SPARC_GLOB_DAT }, | |
202 | { BFD_RELOC_SPARC_JMP_SLOT, R_SPARC_JMP_SLOT }, | |
203 | { BFD_RELOC_SPARC_RELATIVE, R_SPARC_RELATIVE }, | |
204 | { BFD_RELOC_SPARC_WDISP22, R_SPARC_WDISP22 }, | |
0f2712ed NC |
205 | { BFD_RELOC_SPARC_UA16, R_SPARC_UA16 }, |
206 | { BFD_RELOC_SPARC_UA32, R_SPARC_UA32 }, | |
207 | { BFD_RELOC_SPARC_UA64, R_SPARC_UA64 }, | |
208 | { BFD_RELOC_SPARC_10, R_SPARC_10 }, | |
209 | { BFD_RELOC_SPARC_11, R_SPARC_11 }, | |
210 | { BFD_RELOC_SPARC_64, R_SPARC_64 }, | |
211 | { BFD_RELOC_SPARC_OLO10, R_SPARC_OLO10 }, | |
212 | { BFD_RELOC_SPARC_HH22, R_SPARC_HH22 }, | |
213 | { BFD_RELOC_SPARC_HM10, R_SPARC_HM10 }, | |
214 | { BFD_RELOC_SPARC_LM22, R_SPARC_LM22 }, | |
215 | { BFD_RELOC_SPARC_PC_HH22, R_SPARC_PC_HH22 }, | |
216 | { BFD_RELOC_SPARC_PC_HM10, R_SPARC_PC_HM10 }, | |
217 | { BFD_RELOC_SPARC_PC_LM22, R_SPARC_PC_LM22 }, | |
218 | { BFD_RELOC_SPARC_WDISP16, R_SPARC_WDISP16 }, | |
219 | { BFD_RELOC_SPARC_WDISP19, R_SPARC_WDISP19 }, | |
220 | { BFD_RELOC_SPARC_7, R_SPARC_7 }, | |
221 | { BFD_RELOC_SPARC_5, R_SPARC_5 }, | |
222 | { BFD_RELOC_SPARC_6, R_SPARC_6 }, | |
223 | { BFD_RELOC_SPARC_DISP64, R_SPARC_DISP64 }, | |
224 | { BFD_RELOC_SPARC_PLT64, R_SPARC_PLT64 }, | |
225 | { BFD_RELOC_SPARC_HIX22, R_SPARC_HIX22 }, | |
226 | { BFD_RELOC_SPARC_LOX10, R_SPARC_LOX10 }, | |
227 | { BFD_RELOC_SPARC_H44, R_SPARC_H44 }, | |
228 | { BFD_RELOC_SPARC_M44, R_SPARC_M44 }, | |
229 | { BFD_RELOC_SPARC_L44, R_SPARC_L44 }, | |
230 | { BFD_RELOC_SPARC_REGISTER, R_SPARC_REGISTER } | |
252b5132 RH |
231 | }; |
232 | ||
233 | static reloc_howto_type * | |
234 | sparc64_elf_reloc_type_lookup (abfd, code) | |
6c08d697 | 235 | bfd *abfd ATTRIBUTE_UNUSED; |
252b5132 RH |
236 | bfd_reloc_code_real_type code; |
237 | { | |
238 | unsigned int i; | |
239 | for (i = 0; i < sizeof (sparc_reloc_map) / sizeof (struct elf_reloc_map); i++) | |
240 | { | |
241 | if (sparc_reloc_map[i].bfd_reloc_val == code) | |
242 | return &sparc64_elf_howto_table[(int) sparc_reloc_map[i].elf_reloc_val]; | |
243 | } | |
244 | return 0; | |
245 | } | |
246 | ||
247 | static void | |
248 | sparc64_elf_info_to_howto (abfd, cache_ptr, dst) | |
6c08d697 | 249 | bfd *abfd ATTRIBUTE_UNUSED; |
252b5132 RH |
250 | arelent *cache_ptr; |
251 | Elf64_Internal_Rela *dst; | |
252 | { | |
f65054f7 RH |
253 | BFD_ASSERT (ELF64_R_TYPE_ID (dst->r_info) < (unsigned int) R_SPARC_max_std); |
254 | cache_ptr->howto = &sparc64_elf_howto_table[ELF64_R_TYPE_ID (dst->r_info)]; | |
255 | } | |
256 | \f | |
257 | /* Due to the way how we handle R_SPARC_OLO10, each entry in a SHT_RELA | |
258 | section can represent up to two relocs, we must tell the user to allocate | |
259 | more space. */ | |
435b1e90 | 260 | |
f65054f7 RH |
261 | static long |
262 | sparc64_elf_get_reloc_upper_bound (abfd, sec) | |
6c08d697 | 263 | bfd *abfd ATTRIBUTE_UNUSED; |
f65054f7 RH |
264 | asection *sec; |
265 | { | |
266 | return (sec->reloc_count * 2 + 1) * sizeof (arelent *); | |
267 | } | |
268 | ||
269 | static long | |
270 | sparc64_elf_get_dynamic_reloc_upper_bound (abfd) | |
271 | bfd *abfd; | |
272 | { | |
273 | return _bfd_elf_get_dynamic_reloc_upper_bound (abfd) * 2; | |
274 | } | |
275 | ||
435b1e90 | 276 | /* Read relocations for ASECT from REL_HDR. There are RELOC_COUNT of |
f65054f7 RH |
277 | them. We cannot use generic elf routines for this, because R_SPARC_OLO10 |
278 | has secondary addend in ELF64_R_TYPE_DATA. We handle it as two relocations | |
279 | for the same location, R_SPARC_LO10 and R_SPARC_13. */ | |
280 | ||
281 | static boolean | |
282 | sparc64_elf_slurp_one_reloc_table (abfd, asect, rel_hdr, symbols, dynamic) | |
283 | bfd *abfd; | |
284 | asection *asect; | |
285 | Elf_Internal_Shdr *rel_hdr; | |
286 | asymbol **symbols; | |
287 | boolean dynamic; | |
288 | { | |
f65054f7 RH |
289 | PTR allocated = NULL; |
290 | bfd_byte *native_relocs; | |
291 | arelent *relent; | |
292 | unsigned int i; | |
293 | int entsize; | |
294 | bfd_size_type count; | |
295 | arelent *relents; | |
296 | ||
dc810e39 | 297 | allocated = (PTR) bfd_malloc (rel_hdr->sh_size); |
f65054f7 RH |
298 | if (allocated == NULL) |
299 | goto error_return; | |
300 | ||
301 | if (bfd_seek (abfd, rel_hdr->sh_offset, SEEK_SET) != 0 | |
dc810e39 | 302 | || bfd_bread (allocated, rel_hdr->sh_size, abfd) != rel_hdr->sh_size) |
f65054f7 RH |
303 | goto error_return; |
304 | ||
305 | native_relocs = (bfd_byte *) allocated; | |
306 | ||
307 | relents = asect->relocation + asect->reloc_count; | |
308 | ||
309 | entsize = rel_hdr->sh_entsize; | |
310 | BFD_ASSERT (entsize == sizeof (Elf64_External_Rela)); | |
435b1e90 | 311 | |
f65054f7 RH |
312 | count = rel_hdr->sh_size / entsize; |
313 | ||
314 | for (i = 0, relent = relents; i < count; | |
315 | i++, relent++, native_relocs += entsize) | |
316 | { | |
317 | Elf_Internal_Rela rela; | |
318 | ||
319 | bfd_elf64_swap_reloca_in (abfd, (Elf64_External_Rela *) native_relocs, &rela); | |
320 | ||
321 | /* The address of an ELF reloc is section relative for an object | |
322 | file, and absolute for an executable file or shared library. | |
323 | The address of a normal BFD reloc is always section relative, | |
324 | and the address of a dynamic reloc is absolute.. */ | |
325 | if ((abfd->flags & (EXEC_P | DYNAMIC)) == 0 || dynamic) | |
326 | relent->address = rela.r_offset; | |
327 | else | |
328 | relent->address = rela.r_offset - asect->vma; | |
329 | ||
330 | if (ELF64_R_SYM (rela.r_info) == 0) | |
331 | relent->sym_ptr_ptr = bfd_abs_section_ptr->symbol_ptr_ptr; | |
332 | else | |
333 | { | |
334 | asymbol **ps, *s; | |
335 | ||
336 | ps = symbols + ELF64_R_SYM (rela.r_info) - 1; | |
337 | s = *ps; | |
338 | ||
339 | /* Canonicalize ELF section symbols. FIXME: Why? */ | |
340 | if ((s->flags & BSF_SECTION_SYM) == 0) | |
341 | relent->sym_ptr_ptr = ps; | |
342 | else | |
343 | relent->sym_ptr_ptr = s->section->symbol_ptr_ptr; | |
344 | } | |
345 | ||
346 | relent->addend = rela.r_addend; | |
347 | ||
348 | BFD_ASSERT (ELF64_R_TYPE_ID (rela.r_info) < (unsigned int) R_SPARC_max_std); | |
349 | if (ELF64_R_TYPE_ID (rela.r_info) == R_SPARC_OLO10) | |
350 | { | |
351 | relent->howto = &sparc64_elf_howto_table[R_SPARC_LO10]; | |
352 | relent[1].address = relent->address; | |
353 | relent++; | |
354 | relent->sym_ptr_ptr = bfd_abs_section_ptr->symbol_ptr_ptr; | |
355 | relent->addend = ELF64_R_TYPE_DATA (rela.r_info); | |
356 | relent->howto = &sparc64_elf_howto_table[R_SPARC_13]; | |
357 | } | |
358 | else | |
359 | relent->howto = &sparc64_elf_howto_table[ELF64_R_TYPE_ID (rela.r_info)]; | |
360 | } | |
361 | ||
362 | asect->reloc_count += relent - relents; | |
363 | ||
364 | if (allocated != NULL) | |
365 | free (allocated); | |
366 | ||
367 | return true; | |
368 | ||
369 | error_return: | |
370 | if (allocated != NULL) | |
371 | free (allocated); | |
372 | return false; | |
373 | } | |
374 | ||
375 | /* Read in and swap the external relocs. */ | |
376 | ||
377 | static boolean | |
378 | sparc64_elf_slurp_reloc_table (abfd, asect, symbols, dynamic) | |
379 | bfd *abfd; | |
380 | asection *asect; | |
381 | asymbol **symbols; | |
382 | boolean dynamic; | |
383 | { | |
384 | struct bfd_elf_section_data * const d = elf_section_data (asect); | |
385 | Elf_Internal_Shdr *rel_hdr; | |
386 | Elf_Internal_Shdr *rel_hdr2; | |
dc810e39 | 387 | bfd_size_type amt; |
f65054f7 RH |
388 | |
389 | if (asect->relocation != NULL) | |
390 | return true; | |
391 | ||
392 | if (! dynamic) | |
393 | { | |
394 | if ((asect->flags & SEC_RELOC) == 0 | |
395 | || asect->reloc_count == 0) | |
396 | return true; | |
397 | ||
398 | rel_hdr = &d->rel_hdr; | |
399 | rel_hdr2 = d->rel_hdr2; | |
400 | ||
401 | BFD_ASSERT (asect->rel_filepos == rel_hdr->sh_offset | |
402 | || (rel_hdr2 && asect->rel_filepos == rel_hdr2->sh_offset)); | |
403 | } | |
404 | else | |
405 | { | |
406 | /* Note that ASECT->RELOC_COUNT tends not to be accurate in this | |
407 | case because relocations against this section may use the | |
408 | dynamic symbol table, and in that case bfd_section_from_shdr | |
409 | in elf.c does not update the RELOC_COUNT. */ | |
410 | if (asect->_raw_size == 0) | |
411 | return true; | |
412 | ||
413 | rel_hdr = &d->this_hdr; | |
d9bc7a44 | 414 | asect->reloc_count = NUM_SHDR_ENTRIES (rel_hdr); |
f65054f7 RH |
415 | rel_hdr2 = NULL; |
416 | } | |
417 | ||
dc810e39 AM |
418 | amt = asect->reloc_count; |
419 | amt *= 2 * sizeof (arelent); | |
420 | asect->relocation = (arelent *) bfd_alloc (abfd, amt); | |
f65054f7 RH |
421 | if (asect->relocation == NULL) |
422 | return false; | |
423 | ||
424 | /* The sparc64_elf_slurp_one_reloc_table routine increments reloc_count. */ | |
425 | asect->reloc_count = 0; | |
435b1e90 | 426 | |
f65054f7 RH |
427 | if (!sparc64_elf_slurp_one_reloc_table (abfd, asect, rel_hdr, symbols, |
428 | dynamic)) | |
429 | return false; | |
435b1e90 KH |
430 | |
431 | if (rel_hdr2 | |
f65054f7 RH |
432 | && !sparc64_elf_slurp_one_reloc_table (abfd, asect, rel_hdr2, symbols, |
433 | dynamic)) | |
434 | return false; | |
435 | ||
436 | return true; | |
437 | } | |
438 | ||
439 | /* Canonicalize the dynamic relocation entries. Note that we return | |
440 | the dynamic relocations as a single block, although they are | |
441 | actually associated with particular sections; the interface, which | |
442 | was designed for SunOS style shared libraries, expects that there | |
443 | is only one set of dynamic relocs. Any section that was actually | |
444 | installed in the BFD, and has type SHT_REL or SHT_RELA, and uses | |
445 | the dynamic symbol table, is considered to be a dynamic reloc | |
446 | section. */ | |
447 | ||
448 | static long | |
449 | sparc64_elf_canonicalize_dynamic_reloc (abfd, storage, syms) | |
450 | bfd *abfd; | |
451 | arelent **storage; | |
452 | asymbol **syms; | |
453 | { | |
454 | asection *s; | |
455 | long ret; | |
456 | ||
457 | if (elf_dynsymtab (abfd) == 0) | |
458 | { | |
459 | bfd_set_error (bfd_error_invalid_operation); | |
460 | return -1; | |
461 | } | |
462 | ||
463 | ret = 0; | |
464 | for (s = abfd->sections; s != NULL; s = s->next) | |
465 | { | |
466 | if (elf_section_data (s)->this_hdr.sh_link == elf_dynsymtab (abfd) | |
467 | && (elf_section_data (s)->this_hdr.sh_type == SHT_RELA)) | |
468 | { | |
469 | arelent *p; | |
470 | long count, i; | |
471 | ||
472 | if (! sparc64_elf_slurp_reloc_table (abfd, s, syms, true)) | |
473 | return -1; | |
474 | count = s->reloc_count; | |
475 | p = s->relocation; | |
476 | for (i = 0; i < count; i++) | |
477 | *storage++ = p++; | |
478 | ret += count; | |
479 | } | |
480 | } | |
481 | ||
482 | *storage = NULL; | |
483 | ||
484 | return ret; | |
485 | } | |
486 | ||
487 | /* Write out the relocs. */ | |
488 | ||
489 | static void | |
490 | sparc64_elf_write_relocs (abfd, sec, data) | |
491 | bfd *abfd; | |
492 | asection *sec; | |
493 | PTR data; | |
494 | { | |
495 | boolean *failedp = (boolean *) data; | |
496 | Elf_Internal_Shdr *rela_hdr; | |
37fb6db1 | 497 | Elf64_External_Rela *outbound_relocas, *src_rela; |
f65054f7 RH |
498 | unsigned int idx, count; |
499 | asymbol *last_sym = 0; | |
500 | int last_sym_idx = 0; | |
501 | ||
502 | /* If we have already failed, don't do anything. */ | |
503 | if (*failedp) | |
504 | return; | |
505 | ||
506 | if ((sec->flags & SEC_RELOC) == 0) | |
507 | return; | |
508 | ||
509 | /* The linker backend writes the relocs out itself, and sets the | |
510 | reloc_count field to zero to inhibit writing them here. Also, | |
511 | sometimes the SEC_RELOC flag gets set even when there aren't any | |
512 | relocs. */ | |
513 | if (sec->reloc_count == 0) | |
514 | return; | |
515 | ||
516 | /* We can combine two relocs that refer to the same address | |
517 | into R_SPARC_OLO10 if first one is R_SPARC_LO10 and the | |
518 | latter is R_SPARC_13 with no associated symbol. */ | |
519 | count = 0; | |
520 | for (idx = 0; idx < sec->reloc_count; idx++) | |
521 | { | |
522 | bfd_vma addr; | |
f65054f7 RH |
523 | |
524 | ++count; | |
525 | ||
526 | addr = sec->orelocation[idx]->address; | |
527 | if (sec->orelocation[idx]->howto->type == R_SPARC_LO10 | |
528 | && idx < sec->reloc_count - 1) | |
529 | { | |
530 | arelent *r = sec->orelocation[idx + 1]; | |
531 | ||
532 | if (r->howto->type == R_SPARC_13 | |
533 | && r->address == addr | |
534 | && bfd_is_abs_section ((*r->sym_ptr_ptr)->section) | |
535 | && (*r->sym_ptr_ptr)->value == 0) | |
536 | ++idx; | |
537 | } | |
538 | } | |
539 | ||
540 | rela_hdr = &elf_section_data (sec)->rel_hdr; | |
541 | ||
542 | rela_hdr->sh_size = rela_hdr->sh_entsize * count; | |
543 | rela_hdr->contents = (PTR) bfd_alloc (abfd, rela_hdr->sh_size); | |
544 | if (rela_hdr->contents == NULL) | |
545 | { | |
546 | *failedp = true; | |
547 | return; | |
548 | } | |
549 | ||
550 | /* Figure out whether the relocations are RELA or REL relocations. */ | |
551 | if (rela_hdr->sh_type != SHT_RELA) | |
552 | abort (); | |
553 | ||
435b1e90 | 554 | /* orelocation has the data, reloc_count has the count... */ |
f65054f7 | 555 | outbound_relocas = (Elf64_External_Rela *) rela_hdr->contents; |
37fb6db1 | 556 | src_rela = outbound_relocas; |
f65054f7 RH |
557 | |
558 | for (idx = 0; idx < sec->reloc_count; idx++) | |
559 | { | |
560 | Elf_Internal_Rela dst_rela; | |
f65054f7 RH |
561 | arelent *ptr; |
562 | asymbol *sym; | |
563 | int n; | |
564 | ||
565 | ptr = sec->orelocation[idx]; | |
f65054f7 RH |
566 | |
567 | /* The address of an ELF reloc is section relative for an object | |
568 | file, and absolute for an executable file or shared library. | |
569 | The address of a BFD reloc is always section relative. */ | |
570 | if ((abfd->flags & (EXEC_P | DYNAMIC)) == 0) | |
571 | dst_rela.r_offset = ptr->address; | |
572 | else | |
573 | dst_rela.r_offset = ptr->address + sec->vma; | |
574 | ||
575 | sym = *ptr->sym_ptr_ptr; | |
576 | if (sym == last_sym) | |
577 | n = last_sym_idx; | |
578 | else if (bfd_is_abs_section (sym->section) && sym->value == 0) | |
579 | n = STN_UNDEF; | |
580 | else | |
581 | { | |
582 | last_sym = sym; | |
583 | n = _bfd_elf_symbol_from_bfd_symbol (abfd, &sym); | |
584 | if (n < 0) | |
585 | { | |
586 | *failedp = true; | |
587 | return; | |
588 | } | |
589 | last_sym_idx = n; | |
590 | } | |
591 | ||
592 | if ((*ptr->sym_ptr_ptr)->the_bfd != NULL | |
593 | && (*ptr->sym_ptr_ptr)->the_bfd->xvec != abfd->xvec | |
594 | && ! _bfd_elf_validate_reloc (abfd, ptr)) | |
595 | { | |
596 | *failedp = true; | |
597 | return; | |
598 | } | |
599 | ||
600 | if (ptr->howto->type == R_SPARC_LO10 | |
601 | && idx < sec->reloc_count - 1) | |
602 | { | |
603 | arelent *r = sec->orelocation[idx + 1]; | |
604 | ||
605 | if (r->howto->type == R_SPARC_13 | |
606 | && r->address == ptr->address | |
607 | && bfd_is_abs_section ((*r->sym_ptr_ptr)->section) | |
608 | && (*r->sym_ptr_ptr)->value == 0) | |
609 | { | |
610 | idx++; | |
611 | dst_rela.r_info | |
612 | = ELF64_R_INFO (n, ELF64_R_TYPE_INFO (r->addend, | |
613 | R_SPARC_OLO10)); | |
614 | } | |
615 | else | |
616 | dst_rela.r_info = ELF64_R_INFO (n, R_SPARC_LO10); | |
617 | } | |
618 | else | |
619 | dst_rela.r_info = ELF64_R_INFO (n, ptr->howto->type); | |
620 | ||
621 | dst_rela.r_addend = ptr->addend; | |
622 | bfd_elf64_swap_reloca_out (abfd, &dst_rela, src_rela); | |
37fb6db1 | 623 | ++src_rela; |
f65054f7 | 624 | } |
252b5132 | 625 | } |
587ff49e RH |
626 | \f |
627 | /* Sparc64 ELF linker hash table. */ | |
628 | ||
629 | struct sparc64_elf_app_reg | |
630 | { | |
631 | unsigned char bind; | |
632 | unsigned short shndx; | |
633 | bfd *abfd; | |
634 | char *name; | |
635 | }; | |
636 | ||
637 | struct sparc64_elf_link_hash_table | |
638 | { | |
639 | struct elf_link_hash_table root; | |
640 | ||
641 | struct sparc64_elf_app_reg app_regs [4]; | |
642 | }; | |
643 | ||
644 | /* Get the Sparc64 ELF linker hash table from a link_info structure. */ | |
645 | ||
646 | #define sparc64_elf_hash_table(p) \ | |
647 | ((struct sparc64_elf_link_hash_table *) ((p)->hash)) | |
435b1e90 | 648 | |
587ff49e RH |
649 | /* Create a Sparc64 ELF linker hash table. */ |
650 | ||
651 | static struct bfd_link_hash_table * | |
652 | sparc64_elf_bfd_link_hash_table_create (abfd) | |
653 | bfd *abfd; | |
654 | { | |
655 | struct sparc64_elf_link_hash_table *ret; | |
dc810e39 | 656 | bfd_size_type amt = sizeof (struct sparc64_elf_link_hash_table); |
587ff49e | 657 | |
dc810e39 | 658 | ret = (struct sparc64_elf_link_hash_table *) bfd_zalloc (abfd, amt); |
587ff49e RH |
659 | if (ret == (struct sparc64_elf_link_hash_table *) NULL) |
660 | return NULL; | |
661 | ||
662 | if (! _bfd_elf_link_hash_table_init (&ret->root, abfd, | |
663 | _bfd_elf_link_hash_newfunc)) | |
664 | { | |
665 | bfd_release (abfd, ret); | |
666 | return NULL; | |
667 | } | |
668 | ||
669 | return &ret->root.root; | |
670 | } | |
252b5132 RH |
671 | \f |
672 | /* Utility for performing the standard initial work of an instruction | |
673 | relocation. | |
674 | *PRELOCATION will contain the relocated item. | |
675 | *PINSN will contain the instruction from the input stream. | |
676 | If the result is `bfd_reloc_other' the caller can continue with | |
677 | performing the relocation. Otherwise it must stop and return the | |
678 | value to its caller. */ | |
679 | ||
680 | static bfd_reloc_status_type | |
681 | init_insn_reloc (abfd, | |
682 | reloc_entry, | |
683 | symbol, | |
684 | data, | |
685 | input_section, | |
686 | output_bfd, | |
687 | prelocation, | |
688 | pinsn) | |
689 | bfd *abfd; | |
690 | arelent *reloc_entry; | |
691 | asymbol *symbol; | |
692 | PTR data; | |
693 | asection *input_section; | |
694 | bfd *output_bfd; | |
695 | bfd_vma *prelocation; | |
696 | bfd_vma *pinsn; | |
697 | { | |
698 | bfd_vma relocation; | |
699 | reloc_howto_type *howto = reloc_entry->howto; | |
700 | ||
701 | if (output_bfd != (bfd *) NULL | |
702 | && (symbol->flags & BSF_SECTION_SYM) == 0 | |
703 | && (! howto->partial_inplace | |
704 | || reloc_entry->addend == 0)) | |
705 | { | |
706 | reloc_entry->address += input_section->output_offset; | |
707 | return bfd_reloc_ok; | |
708 | } | |
709 | ||
710 | /* This works because partial_inplace == false. */ | |
711 | if (output_bfd != NULL) | |
712 | return bfd_reloc_continue; | |
713 | ||
714 | if (reloc_entry->address > input_section->_cooked_size) | |
715 | return bfd_reloc_outofrange; | |
716 | ||
717 | relocation = (symbol->value | |
718 | + symbol->section->output_section->vma | |
719 | + symbol->section->output_offset); | |
720 | relocation += reloc_entry->addend; | |
721 | if (howto->pc_relative) | |
722 | { | |
723 | relocation -= (input_section->output_section->vma | |
724 | + input_section->output_offset); | |
725 | relocation -= reloc_entry->address; | |
726 | } | |
727 | ||
728 | *prelocation = relocation; | |
729 | *pinsn = bfd_get_32 (abfd, (bfd_byte *) data + reloc_entry->address); | |
730 | return bfd_reloc_other; | |
731 | } | |
732 | ||
733 | /* For unsupported relocs. */ | |
734 | ||
735 | static bfd_reloc_status_type | |
736 | sparc_elf_notsup_reloc (abfd, | |
737 | reloc_entry, | |
738 | symbol, | |
739 | data, | |
740 | input_section, | |
741 | output_bfd, | |
742 | error_message) | |
6c08d697 JJ |
743 | bfd *abfd ATTRIBUTE_UNUSED; |
744 | arelent *reloc_entry ATTRIBUTE_UNUSED; | |
745 | asymbol *symbol ATTRIBUTE_UNUSED; | |
746 | PTR data ATTRIBUTE_UNUSED; | |
747 | asection *input_section ATTRIBUTE_UNUSED; | |
748 | bfd *output_bfd ATTRIBUTE_UNUSED; | |
749 | char **error_message ATTRIBUTE_UNUSED; | |
252b5132 RH |
750 | { |
751 | return bfd_reloc_notsupported; | |
752 | } | |
753 | ||
754 | /* Handle the WDISP16 reloc. */ | |
755 | ||
756 | static bfd_reloc_status_type | |
757 | sparc_elf_wdisp16_reloc (abfd, reloc_entry, symbol, data, input_section, | |
758 | output_bfd, error_message) | |
759 | bfd *abfd; | |
760 | arelent *reloc_entry; | |
761 | asymbol *symbol; | |
762 | PTR data; | |
763 | asection *input_section; | |
764 | bfd *output_bfd; | |
6c08d697 | 765 | char **error_message ATTRIBUTE_UNUSED; |
252b5132 RH |
766 | { |
767 | bfd_vma relocation; | |
768 | bfd_vma insn; | |
769 | bfd_reloc_status_type status; | |
770 | ||
771 | status = init_insn_reloc (abfd, reloc_entry, symbol, data, | |
772 | input_section, output_bfd, &relocation, &insn); | |
773 | if (status != bfd_reloc_other) | |
774 | return status; | |
775 | ||
dc810e39 AM |
776 | insn &= ~ (bfd_vma) 0x303fff; |
777 | insn |= (((relocation >> 2) & 0xc000) << 6) | ((relocation >> 2) & 0x3fff); | |
252b5132 RH |
778 | bfd_put_32 (abfd, insn, (bfd_byte *) data + reloc_entry->address); |
779 | ||
780 | if ((bfd_signed_vma) relocation < - 0x40000 | |
781 | || (bfd_signed_vma) relocation > 0x3ffff) | |
782 | return bfd_reloc_overflow; | |
783 | else | |
784 | return bfd_reloc_ok; | |
785 | } | |
786 | ||
787 | /* Handle the HIX22 reloc. */ | |
788 | ||
789 | static bfd_reloc_status_type | |
790 | sparc_elf_hix22_reloc (abfd, | |
791 | reloc_entry, | |
792 | symbol, | |
793 | data, | |
794 | input_section, | |
795 | output_bfd, | |
796 | error_message) | |
797 | bfd *abfd; | |
798 | arelent *reloc_entry; | |
799 | asymbol *symbol; | |
800 | PTR data; | |
801 | asection *input_section; | |
802 | bfd *output_bfd; | |
6c08d697 | 803 | char **error_message ATTRIBUTE_UNUSED; |
252b5132 RH |
804 | { |
805 | bfd_vma relocation; | |
806 | bfd_vma insn; | |
807 | bfd_reloc_status_type status; | |
808 | ||
809 | status = init_insn_reloc (abfd, reloc_entry, symbol, data, | |
810 | input_section, output_bfd, &relocation, &insn); | |
811 | if (status != bfd_reloc_other) | |
812 | return status; | |
813 | ||
814 | relocation ^= MINUS_ONE; | |
dc810e39 | 815 | insn = (insn &~ (bfd_vma) 0x3fffff) | ((relocation >> 10) & 0x3fffff); |
252b5132 RH |
816 | bfd_put_32 (abfd, insn, (bfd_byte *) data + reloc_entry->address); |
817 | ||
818 | if ((relocation & ~ (bfd_vma) 0xffffffff) != 0) | |
819 | return bfd_reloc_overflow; | |
820 | else | |
821 | return bfd_reloc_ok; | |
822 | } | |
823 | ||
824 | /* Handle the LOX10 reloc. */ | |
825 | ||
826 | static bfd_reloc_status_type | |
827 | sparc_elf_lox10_reloc (abfd, | |
828 | reloc_entry, | |
829 | symbol, | |
830 | data, | |
831 | input_section, | |
832 | output_bfd, | |
833 | error_message) | |
834 | bfd *abfd; | |
835 | arelent *reloc_entry; | |
836 | asymbol *symbol; | |
837 | PTR data; | |
838 | asection *input_section; | |
839 | bfd *output_bfd; | |
6c08d697 | 840 | char **error_message ATTRIBUTE_UNUSED; |
252b5132 RH |
841 | { |
842 | bfd_vma relocation; | |
843 | bfd_vma insn; | |
844 | bfd_reloc_status_type status; | |
845 | ||
846 | status = init_insn_reloc (abfd, reloc_entry, symbol, data, | |
847 | input_section, output_bfd, &relocation, &insn); | |
848 | if (status != bfd_reloc_other) | |
849 | return status; | |
850 | ||
dc810e39 | 851 | insn = (insn &~ (bfd_vma) 0x1fff) | 0x1c00 | (relocation & 0x3ff); |
252b5132 RH |
852 | bfd_put_32 (abfd, insn, (bfd_byte *) data + reloc_entry->address); |
853 | ||
854 | return bfd_reloc_ok; | |
855 | } | |
856 | \f | |
857 | /* PLT/GOT stuff */ | |
858 | ||
859 | /* Both the headers and the entries are icache aligned. */ | |
860 | #define PLT_ENTRY_SIZE 32 | |
861 | #define PLT_HEADER_SIZE (4 * PLT_ENTRY_SIZE) | |
862 | #define LARGE_PLT_THRESHOLD 32768 | |
863 | #define GOT_RESERVED_ENTRIES 1 | |
864 | ||
865 | #define ELF_DYNAMIC_INTERPRETER "/usr/lib/sparcv9/ld.so.1" | |
866 | ||
252b5132 RH |
867 | /* Fill in the .plt section. */ |
868 | ||
869 | static void | |
870 | sparc64_elf_build_plt (output_bfd, contents, nentries) | |
871 | bfd *output_bfd; | |
872 | unsigned char *contents; | |
873 | int nentries; | |
874 | { | |
875 | const unsigned int nop = 0x01000000; | |
876 | int i, j; | |
435b1e90 | 877 | |
252b5132 RH |
878 | /* The first four entries are reserved, and are initially undefined. |
879 | We fill them with `illtrap 0' to force ld.so to do something. */ | |
880 | ||
881 | for (i = 0; i < PLT_HEADER_SIZE/4; ++i) | |
dc810e39 | 882 | bfd_put_32 (output_bfd, (bfd_vma) 0, contents+i*4); |
252b5132 RH |
883 | |
884 | /* The first 32768 entries are close enough to plt1 to get there via | |
885 | a straight branch. */ | |
886 | ||
887 | for (i = 4; i < LARGE_PLT_THRESHOLD && i < nentries; ++i) | |
888 | { | |
889 | unsigned char *entry = contents + i * PLT_ENTRY_SIZE; | |
890 | unsigned int sethi, ba; | |
891 | ||
892 | /* sethi (. - plt0), %g1 */ | |
893 | sethi = 0x03000000 | (i * PLT_ENTRY_SIZE); | |
894 | ||
a11c78e7 RH |
895 | /* ba,a,pt %xcc, plt1 */ |
896 | ba = 0x30680000 | (((contents+PLT_ENTRY_SIZE) - (entry+4)) / 4 & 0x7ffff); | |
252b5132 | 897 | |
dc810e39 AM |
898 | bfd_put_32 (output_bfd, (bfd_vma) sethi, entry); |
899 | bfd_put_32 (output_bfd, (bfd_vma) ba, entry + 4); | |
900 | bfd_put_32 (output_bfd, (bfd_vma) nop, entry + 8); | |
901 | bfd_put_32 (output_bfd, (bfd_vma) nop, entry + 12); | |
902 | bfd_put_32 (output_bfd, (bfd_vma) nop, entry + 16); | |
903 | bfd_put_32 (output_bfd, (bfd_vma) nop, entry + 20); | |
904 | bfd_put_32 (output_bfd, (bfd_vma) nop, entry + 24); | |
905 | bfd_put_32 (output_bfd, (bfd_vma) nop, entry + 28); | |
252b5132 RH |
906 | } |
907 | ||
908 | /* Now the tricky bit. Entries 32768 and higher are grouped in blocks of | |
909 | 160: 160 entries and 160 pointers. This is to separate code from data, | |
910 | which is much friendlier on the cache. */ | |
435b1e90 | 911 | |
252b5132 RH |
912 | for (; i < nentries; i += 160) |
913 | { | |
914 | int block = (i + 160 <= nentries ? 160 : nentries - i); | |
915 | for (j = 0; j < block; ++j) | |
916 | { | |
917 | unsigned char *entry, *ptr; | |
918 | unsigned int ldx; | |
919 | ||
920 | entry = contents + i*PLT_ENTRY_SIZE + j*4*6; | |
921 | ptr = contents + i*PLT_ENTRY_SIZE + block*4*6 + j*8; | |
922 | ||
923 | /* ldx [%o7 + ptr - entry+4], %g1 */ | |
924 | ldx = 0xc25be000 | ((ptr - entry+4) & 0x1fff); | |
925 | ||
dc810e39 AM |
926 | /* mov %o7,%g5 |
927 | call .+8 | |
928 | nop | |
929 | ldx [%o7+P],%g1 | |
930 | jmpl %o7+%g1,%g1 | |
931 | mov %g5,%o7 */ | |
932 | bfd_put_32 (output_bfd, (bfd_vma) 0x8a10000f, entry); | |
933 | bfd_put_32 (output_bfd, (bfd_vma) 0x40000002, entry + 4); | |
934 | bfd_put_32 (output_bfd, (bfd_vma) nop, entry + 8); | |
935 | bfd_put_32 (output_bfd, (bfd_vma) ldx, entry + 12); | |
936 | bfd_put_32 (output_bfd, (bfd_vma) 0x83c3c001, entry + 16); | |
937 | bfd_put_32 (output_bfd, (bfd_vma) 0x9e100005, entry + 20); | |
938 | ||
939 | bfd_put_64 (output_bfd, (bfd_vma) (contents - (entry + 4)), ptr); | |
252b5132 RH |
940 | } |
941 | } | |
942 | } | |
943 | ||
944 | /* Return the offset of a particular plt entry within the .plt section. */ | |
945 | ||
946 | static bfd_vma | |
947 | sparc64_elf_plt_entry_offset (index) | |
dc810e39 | 948 | bfd_vma index; |
252b5132 | 949 | { |
dc810e39 | 950 | bfd_vma block, ofs; |
252b5132 RH |
951 | |
952 | if (index < LARGE_PLT_THRESHOLD) | |
953 | return index * PLT_ENTRY_SIZE; | |
954 | ||
955 | /* See above for details. */ | |
956 | ||
957 | block = (index - LARGE_PLT_THRESHOLD) / 160; | |
958 | ofs = (index - LARGE_PLT_THRESHOLD) % 160; | |
959 | ||
dc810e39 | 960 | return (LARGE_PLT_THRESHOLD + block * 160) * PLT_ENTRY_SIZE + ofs * 6 * 4; |
252b5132 RH |
961 | } |
962 | ||
963 | static bfd_vma | |
964 | sparc64_elf_plt_ptr_offset (index, max) | |
dc810e39 AM |
965 | bfd_vma index; |
966 | bfd_vma max; | |
252b5132 | 967 | { |
dc810e39 | 968 | bfd_vma block, ofs, last; |
252b5132 RH |
969 | |
970 | BFD_ASSERT(index >= LARGE_PLT_THRESHOLD); | |
971 | ||
972 | /* See above for details. */ | |
973 | ||
dc810e39 | 974 | block = (((index - LARGE_PLT_THRESHOLD) / 160) * 160) + LARGE_PLT_THRESHOLD; |
a11c78e7 RH |
975 | ofs = index - block; |
976 | if (block + 160 > max) | |
977 | last = (max - LARGE_PLT_THRESHOLD) % 160; | |
978 | else | |
979 | last = 160; | |
252b5132 | 980 | |
a11c78e7 | 981 | return (block * PLT_ENTRY_SIZE |
252b5132 RH |
982 | + last * 6*4 |
983 | + ofs * 8); | |
984 | } | |
252b5132 RH |
985 | \f |
986 | /* Look through the relocs for a section during the first phase, and | |
987 | allocate space in the global offset table or procedure linkage | |
988 | table. */ | |
989 | ||
990 | static boolean | |
991 | sparc64_elf_check_relocs (abfd, info, sec, relocs) | |
992 | bfd *abfd; | |
993 | struct bfd_link_info *info; | |
994 | asection *sec; | |
995 | const Elf_Internal_Rela *relocs; | |
996 | { | |
997 | bfd *dynobj; | |
998 | Elf_Internal_Shdr *symtab_hdr; | |
999 | struct elf_link_hash_entry **sym_hashes; | |
1000 | bfd_vma *local_got_offsets; | |
1001 | const Elf_Internal_Rela *rel; | |
1002 | const Elf_Internal_Rela *rel_end; | |
1003 | asection *sgot; | |
1004 | asection *srelgot; | |
1005 | asection *sreloc; | |
1006 | ||
1007 | if (info->relocateable || !(sec->flags & SEC_ALLOC)) | |
1008 | return true; | |
1009 | ||
1010 | dynobj = elf_hash_table (info)->dynobj; | |
1011 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; | |
1012 | sym_hashes = elf_sym_hashes (abfd); | |
1013 | local_got_offsets = elf_local_got_offsets (abfd); | |
1014 | ||
1015 | sgot = NULL; | |
1016 | srelgot = NULL; | |
1017 | sreloc = NULL; | |
1018 | ||
d9bc7a44 | 1019 | rel_end = relocs + NUM_SHDR_ENTRIES (& elf_section_data (sec)->rel_hdr); |
252b5132 RH |
1020 | for (rel = relocs; rel < rel_end; rel++) |
1021 | { | |
1022 | unsigned long r_symndx; | |
1023 | struct elf_link_hash_entry *h; | |
1024 | ||
1025 | r_symndx = ELF64_R_SYM (rel->r_info); | |
1026 | if (r_symndx < symtab_hdr->sh_info) | |
1027 | h = NULL; | |
1028 | else | |
1029 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
1030 | ||
f65054f7 | 1031 | switch (ELF64_R_TYPE_ID (rel->r_info)) |
252b5132 RH |
1032 | { |
1033 | case R_SPARC_GOT10: | |
1034 | case R_SPARC_GOT13: | |
1035 | case R_SPARC_GOT22: | |
1036 | /* This symbol requires a global offset table entry. */ | |
1037 | ||
1038 | if (dynobj == NULL) | |
1039 | { | |
1040 | /* Create the .got section. */ | |
1041 | elf_hash_table (info)->dynobj = dynobj = abfd; | |
1042 | if (! _bfd_elf_create_got_section (dynobj, info)) | |
1043 | return false; | |
1044 | } | |
1045 | ||
1046 | if (sgot == NULL) | |
1047 | { | |
1048 | sgot = bfd_get_section_by_name (dynobj, ".got"); | |
1049 | BFD_ASSERT (sgot != NULL); | |
1050 | } | |
1051 | ||
1052 | if (srelgot == NULL && (h != NULL || info->shared)) | |
1053 | { | |
1054 | srelgot = bfd_get_section_by_name (dynobj, ".rela.got"); | |
1055 | if (srelgot == NULL) | |
1056 | { | |
1057 | srelgot = bfd_make_section (dynobj, ".rela.got"); | |
1058 | if (srelgot == NULL | |
1059 | || ! bfd_set_section_flags (dynobj, srelgot, | |
1060 | (SEC_ALLOC | |
1061 | | SEC_LOAD | |
1062 | | SEC_HAS_CONTENTS | |
1063 | | SEC_IN_MEMORY | |
1064 | | SEC_LINKER_CREATED | |
1065 | | SEC_READONLY)) | |
1066 | || ! bfd_set_section_alignment (dynobj, srelgot, 3)) | |
1067 | return false; | |
1068 | } | |
1069 | } | |
1070 | ||
1071 | if (h != NULL) | |
1072 | { | |
1073 | if (h->got.offset != (bfd_vma) -1) | |
1074 | { | |
1075 | /* We have already allocated space in the .got. */ | |
1076 | break; | |
1077 | } | |
1078 | h->got.offset = sgot->_raw_size; | |
1079 | ||
1080 | /* Make sure this symbol is output as a dynamic symbol. */ | |
1081 | if (h->dynindx == -1) | |
1082 | { | |
1083 | if (! bfd_elf64_link_record_dynamic_symbol (info, h)) | |
1084 | return false; | |
1085 | } | |
1086 | ||
1087 | srelgot->_raw_size += sizeof (Elf64_External_Rela); | |
1088 | } | |
1089 | else | |
1090 | { | |
1091 | /* This is a global offset table entry for a local | |
1092 | symbol. */ | |
1093 | if (local_got_offsets == NULL) | |
1094 | { | |
dc810e39 | 1095 | bfd_size_type size; |
252b5132 RH |
1096 | register unsigned int i; |
1097 | ||
dc810e39 AM |
1098 | size = symtab_hdr->sh_info; |
1099 | size *= sizeof (bfd_vma); | |
252b5132 RH |
1100 | local_got_offsets = (bfd_vma *) bfd_alloc (abfd, size); |
1101 | if (local_got_offsets == NULL) | |
1102 | return false; | |
1103 | elf_local_got_offsets (abfd) = local_got_offsets; | |
1104 | for (i = 0; i < symtab_hdr->sh_info; i++) | |
1105 | local_got_offsets[i] = (bfd_vma) -1; | |
1106 | } | |
1107 | if (local_got_offsets[r_symndx] != (bfd_vma) -1) | |
1108 | { | |
1109 | /* We have already allocated space in the .got. */ | |
1110 | break; | |
1111 | } | |
1112 | local_got_offsets[r_symndx] = sgot->_raw_size; | |
1113 | ||
1114 | if (info->shared) | |
1115 | { | |
1116 | /* If we are generating a shared object, we need to | |
1117 | output a R_SPARC_RELATIVE reloc so that the | |
1118 | dynamic linker can adjust this GOT entry. */ | |
1119 | srelgot->_raw_size += sizeof (Elf64_External_Rela); | |
1120 | } | |
1121 | } | |
1122 | ||
1123 | sgot->_raw_size += 8; | |
1124 | ||
1125 | #if 0 | |
1126 | /* Doesn't work for 64-bit -fPIC, since sethi/or builds | |
1127 | unsigned numbers. If we permit ourselves to modify | |
1128 | code so we get sethi/xor, this could work. | |
1129 | Question: do we consider conditionally re-enabling | |
1130 | this for -fpic, once we know about object code models? */ | |
1131 | /* If the .got section is more than 0x1000 bytes, we add | |
1132 | 0x1000 to the value of _GLOBAL_OFFSET_TABLE_, so that 13 | |
1133 | bit relocations have a greater chance of working. */ | |
1134 | if (sgot->_raw_size >= 0x1000 | |
1135 | && elf_hash_table (info)->hgot->root.u.def.value == 0) | |
1136 | elf_hash_table (info)->hgot->root.u.def.value = 0x1000; | |
1137 | #endif | |
1138 | ||
1139 | break; | |
1140 | ||
1141 | case R_SPARC_WPLT30: | |
1142 | case R_SPARC_PLT32: | |
1143 | case R_SPARC_HIPLT22: | |
1144 | case R_SPARC_LOPLT10: | |
1145 | case R_SPARC_PCPLT32: | |
1146 | case R_SPARC_PCPLT22: | |
1147 | case R_SPARC_PCPLT10: | |
1148 | case R_SPARC_PLT64: | |
1149 | /* This symbol requires a procedure linkage table entry. We | |
1150 | actually build the entry in adjust_dynamic_symbol, | |
1151 | because this might be a case of linking PIC code without | |
1152 | linking in any dynamic objects, in which case we don't | |
1153 | need to generate a procedure linkage table after all. */ | |
1154 | ||
1155 | if (h == NULL) | |
1156 | { | |
1157 | /* It does not make sense to have a procedure linkage | |
1158 | table entry for a local symbol. */ | |
1159 | bfd_set_error (bfd_error_bad_value); | |
1160 | return false; | |
1161 | } | |
1162 | ||
1163 | /* Make sure this symbol is output as a dynamic symbol. */ | |
1164 | if (h->dynindx == -1) | |
1165 | { | |
1166 | if (! bfd_elf64_link_record_dynamic_symbol (info, h)) | |
1167 | return false; | |
1168 | } | |
1169 | ||
1170 | h->elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_PLT; | |
1171 | break; | |
1172 | ||
1173 | case R_SPARC_PC10: | |
1174 | case R_SPARC_PC22: | |
1175 | case R_SPARC_PC_HH22: | |
1176 | case R_SPARC_PC_HM10: | |
1177 | case R_SPARC_PC_LM22: | |
1178 | if (h != NULL | |
1179 | && strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0) | |
1180 | break; | |
1181 | /* Fall through. */ | |
1182 | case R_SPARC_DISP8: | |
1183 | case R_SPARC_DISP16: | |
1184 | case R_SPARC_DISP32: | |
1185 | case R_SPARC_DISP64: | |
1186 | case R_SPARC_WDISP30: | |
1187 | case R_SPARC_WDISP22: | |
1188 | case R_SPARC_WDISP19: | |
1189 | case R_SPARC_WDISP16: | |
1190 | if (h == NULL) | |
1191 | break; | |
1192 | /* Fall through. */ | |
1193 | case R_SPARC_8: | |
1194 | case R_SPARC_16: | |
1195 | case R_SPARC_32: | |
1196 | case R_SPARC_HI22: | |
1197 | case R_SPARC_22: | |
1198 | case R_SPARC_13: | |
1199 | case R_SPARC_LO10: | |
1200 | case R_SPARC_UA32: | |
1201 | case R_SPARC_10: | |
1202 | case R_SPARC_11: | |
1203 | case R_SPARC_64: | |
1204 | case R_SPARC_OLO10: | |
1205 | case R_SPARC_HH22: | |
1206 | case R_SPARC_HM10: | |
1207 | case R_SPARC_LM22: | |
1208 | case R_SPARC_7: | |
1209 | case R_SPARC_5: | |
1210 | case R_SPARC_6: | |
1211 | case R_SPARC_HIX22: | |
1212 | case R_SPARC_LOX10: | |
1213 | case R_SPARC_H44: | |
1214 | case R_SPARC_M44: | |
1215 | case R_SPARC_L44: | |
1216 | case R_SPARC_UA64: | |
1217 | case R_SPARC_UA16: | |
1218 | /* When creating a shared object, we must copy these relocs | |
1219 | into the output file. We create a reloc section in | |
435b1e90 | 1220 | dynobj and make room for the reloc. |
252b5132 RH |
1221 | |
1222 | But don't do this for debugging sections -- this shows up | |
1223 | with DWARF2 -- first because they are not loaded, and | |
1224 | second because DWARF sez the debug info is not to be | |
1225 | biased by the load address. */ | |
1226 | if (info->shared && (sec->flags & SEC_ALLOC)) | |
1227 | { | |
1228 | if (sreloc == NULL) | |
1229 | { | |
1230 | const char *name; | |
1231 | ||
1232 | name = (bfd_elf_string_from_elf_section | |
1233 | (abfd, | |
1234 | elf_elfheader (abfd)->e_shstrndx, | |
1235 | elf_section_data (sec)->rel_hdr.sh_name)); | |
1236 | if (name == NULL) | |
1237 | return false; | |
1238 | ||
1239 | BFD_ASSERT (strncmp (name, ".rela", 5) == 0 | |
1240 | && strcmp (bfd_get_section_name (abfd, sec), | |
1241 | name + 5) == 0); | |
1242 | ||
1243 | sreloc = bfd_get_section_by_name (dynobj, name); | |
1244 | if (sreloc == NULL) | |
1245 | { | |
1246 | flagword flags; | |
1247 | ||
1248 | sreloc = bfd_make_section (dynobj, name); | |
1249 | flags = (SEC_HAS_CONTENTS | SEC_READONLY | |
1250 | | SEC_IN_MEMORY | SEC_LINKER_CREATED); | |
1251 | if ((sec->flags & SEC_ALLOC) != 0) | |
1252 | flags |= SEC_ALLOC | SEC_LOAD; | |
1253 | if (sreloc == NULL | |
1254 | || ! bfd_set_section_flags (dynobj, sreloc, flags) | |
1255 | || ! bfd_set_section_alignment (dynobj, sreloc, 3)) | |
1256 | return false; | |
1257 | } | |
db6751f2 JJ |
1258 | if (sec->flags & SEC_READONLY) |
1259 | info->flags |= DF_TEXTREL; | |
252b5132 RH |
1260 | } |
1261 | ||
1262 | sreloc->_raw_size += sizeof (Elf64_External_Rela); | |
1263 | } | |
1264 | break; | |
1265 | ||
1266 | case R_SPARC_REGISTER: | |
1267 | /* Nothing to do. */ | |
1268 | break; | |
1269 | ||
1270 | default: | |
435b1e90 | 1271 | (*_bfd_error_handler) (_("%s: check_relocs: unhandled reloc type %d"), |
252b5132 | 1272 | bfd_get_filename(abfd), |
f65054f7 | 1273 | ELF64_R_TYPE_ID (rel->r_info)); |
252b5132 RH |
1274 | return false; |
1275 | } | |
1276 | } | |
1277 | ||
1278 | return true; | |
1279 | } | |
1280 | ||
587ff49e RH |
1281 | /* Hook called by the linker routine which adds symbols from an object |
1282 | file. We use it for STT_REGISTER symbols. */ | |
1283 | ||
1284 | static boolean | |
1285 | sparc64_elf_add_symbol_hook (abfd, info, sym, namep, flagsp, secp, valp) | |
1286 | bfd *abfd; | |
1287 | struct bfd_link_info *info; | |
1288 | const Elf_Internal_Sym *sym; | |
1289 | const char **namep; | |
6c08d697 JJ |
1290 | flagword *flagsp ATTRIBUTE_UNUSED; |
1291 | asection **secp ATTRIBUTE_UNUSED; | |
1292 | bfd_vma *valp ATTRIBUTE_UNUSED; | |
587ff49e RH |
1293 | { |
1294 | static char *stt_types[] = { "NOTYPE", "OBJECT", "FUNCTION" }; | |
1295 | ||
1296 | if (ELF_ST_TYPE (sym->st_info) == STT_REGISTER) | |
1297 | { | |
1298 | int reg; | |
1299 | struct sparc64_elf_app_reg *p; | |
435b1e90 | 1300 | |
587ff49e RH |
1301 | reg = (int)sym->st_value; |
1302 | switch (reg & ~1) | |
1303 | { | |
1304 | case 2: reg -= 2; break; | |
1305 | case 6: reg -= 4; break; | |
1306 | default: | |
1307 | (*_bfd_error_handler) | |
1308 | (_("%s: Only registers %%g[2367] can be declared using STT_REGISTER"), | |
1309 | bfd_get_filename (abfd)); | |
1310 | return false; | |
1311 | } | |
1312 | ||
1313 | if (info->hash->creator != abfd->xvec | |
1314 | || (abfd->flags & DYNAMIC) != 0) | |
1315 | { | |
1316 | /* STT_REGISTER only works when linking an elf64_sparc object. | |
1317 | If STT_REGISTER comes from a dynamic object, don't put it into | |
1318 | the output bfd. The dynamic linker will recheck it. */ | |
1319 | *namep = NULL; | |
1320 | return true; | |
1321 | } | |
1322 | ||
1323 | p = sparc64_elf_hash_table(info)->app_regs + reg; | |
1324 | ||
1325 | if (p->name != NULL && strcmp (p->name, *namep)) | |
1326 | { | |
1327 | (*_bfd_error_handler) | |
1328 | (_("Register %%g%d used incompatibly: " | |
1329 | "previously declared in %s to %s, in %s redefined to %s"), | |
1330 | (int)sym->st_value, | |
1331 | bfd_get_filename (p->abfd), *p->name ? p->name : "#scratch", | |
1332 | bfd_get_filename (abfd), **namep ? *namep : "#scratch"); | |
1333 | return false; | |
1334 | } | |
1335 | ||
1336 | if (p->name == NULL) | |
1337 | { | |
1338 | if (**namep) | |
1339 | { | |
1340 | struct elf_link_hash_entry *h; | |
435b1e90 | 1341 | |
587ff49e RH |
1342 | h = (struct elf_link_hash_entry *) |
1343 | bfd_link_hash_lookup (info->hash, *namep, false, false, false); | |
1344 | ||
1345 | if (h != NULL) | |
1346 | { | |
1347 | unsigned char type = h->type; | |
1348 | ||
1349 | if (type > STT_FUNC) type = 0; | |
1350 | (*_bfd_error_handler) | |
1351 | (_("Symbol `%s' has differing types: " | |
1352 | "previously %s, REGISTER in %s"), | |
1353 | *namep, stt_types [type], bfd_get_filename (abfd)); | |
1354 | return false; | |
1355 | } | |
1356 | ||
1357 | p->name = bfd_hash_allocate (&info->hash->table, | |
1358 | strlen (*namep) + 1); | |
1359 | if (!p->name) | |
1360 | return false; | |
1361 | ||
1362 | strcpy (p->name, *namep); | |
1363 | } | |
1364 | else | |
1365 | p->name = ""; | |
1366 | p->bind = ELF_ST_BIND (sym->st_info); | |
1367 | p->abfd = abfd; | |
1368 | p->shndx = sym->st_shndx; | |
1369 | } | |
1370 | else | |
1371 | { | |
1372 | if (p->bind == STB_WEAK | |
1373 | && ELF_ST_BIND (sym->st_info) == STB_GLOBAL) | |
1374 | { | |
1375 | p->bind = STB_GLOBAL; | |
1376 | p->abfd = abfd; | |
1377 | } | |
1378 | } | |
1379 | *namep = NULL; | |
1380 | return true; | |
1381 | } | |
1382 | else if (! *namep || ! **namep) | |
1383 | return true; | |
1384 | else | |
1385 | { | |
1386 | int i; | |
1387 | struct sparc64_elf_app_reg *p; | |
1388 | ||
1389 | p = sparc64_elf_hash_table(info)->app_regs; | |
1390 | for (i = 0; i < 4; i++, p++) | |
1391 | if (p->name != NULL && ! strcmp (p->name, *namep)) | |
1392 | { | |
1393 | unsigned char type = ELF_ST_TYPE (sym->st_info); | |
1394 | ||
1395 | if (type > STT_FUNC) type = 0; | |
1396 | (*_bfd_error_handler) | |
1397 | (_("Symbol `%s' has differing types: " | |
1398 | "REGISTER in %s, %s in %s"), | |
1399 | *namep, bfd_get_filename (p->abfd), stt_types [type], | |
1400 | bfd_get_filename (abfd)); | |
1401 | return false; | |
1402 | } | |
1403 | } | |
1404 | return true; | |
1405 | } | |
1406 | ||
1407 | /* This function takes care of emiting STT_REGISTER symbols | |
1408 | which we cannot easily keep in the symbol hash table. */ | |
1409 | ||
1410 | static boolean | |
1411 | sparc64_elf_output_arch_syms (output_bfd, info, finfo, func) | |
6c08d697 | 1412 | bfd *output_bfd ATTRIBUTE_UNUSED; |
587ff49e RH |
1413 | struct bfd_link_info *info; |
1414 | PTR finfo; | |
1415 | boolean (*func) PARAMS ((PTR, const char *, | |
1416 | Elf_Internal_Sym *, asection *)); | |
1417 | { | |
1418 | int reg; | |
1419 | struct sparc64_elf_app_reg *app_regs = | |
1420 | sparc64_elf_hash_table(info)->app_regs; | |
1421 | Elf_Internal_Sym sym; | |
1422 | ||
1423 | /* We arranged in size_dynamic_sections to put the STT_REGISTER entries | |
1424 | at the end of the dynlocal list, so they came at the end of the local | |
1425 | symbols in the symtab. Except that they aren't STB_LOCAL, so we need | |
1426 | to back up symtab->sh_info. */ | |
1427 | if (elf_hash_table (info)->dynlocal) | |
1428 | { | |
1fa0ddb3 RH |
1429 | bfd * dynobj = elf_hash_table (info)->dynobj; |
1430 | asection *dynsymsec = bfd_get_section_by_name (dynobj, ".dynsym"); | |
587ff49e RH |
1431 | struct elf_link_local_dynamic_entry *e; |
1432 | ||
1433 | for (e = elf_hash_table (info)->dynlocal; e ; e = e->next) | |
1434 | if (e->input_indx == -1) | |
1435 | break; | |
1436 | if (e) | |
1437 | { | |
1438 | elf_section_data (dynsymsec->output_section)->this_hdr.sh_info | |
1439 | = e->dynindx; | |
1440 | } | |
1441 | } | |
1442 | ||
1443 | if (info->strip == strip_all) | |
1444 | return true; | |
1445 | ||
1446 | for (reg = 0; reg < 4; reg++) | |
1447 | if (app_regs [reg].name != NULL) | |
1448 | { | |
1449 | if (info->strip == strip_some | |
1450 | && bfd_hash_lookup (info->keep_hash, | |
1451 | app_regs [reg].name, | |
1452 | false, false) == NULL) | |
1453 | continue; | |
1454 | ||
1455 | sym.st_value = reg < 2 ? reg + 2 : reg + 4; | |
1456 | sym.st_size = 0; | |
1457 | sym.st_other = 0; | |
1458 | sym.st_info = ELF_ST_INFO (app_regs [reg].bind, STT_REGISTER); | |
1459 | sym.st_shndx = app_regs [reg].shndx; | |
1460 | if (! (*func) (finfo, app_regs [reg].name, &sym, | |
1461 | sym.st_shndx == SHN_ABS | |
1462 | ? bfd_abs_section_ptr : bfd_und_section_ptr)) | |
1463 | return false; | |
1464 | } | |
1465 | ||
1466 | return true; | |
1467 | } | |
1468 | ||
1469 | static int | |
1470 | sparc64_elf_get_symbol_type (elf_sym, type) | |
1471 | Elf_Internal_Sym * elf_sym; | |
1472 | int type; | |
1473 | { | |
1474 | if (ELF_ST_TYPE (elf_sym->st_info) == STT_REGISTER) | |
1475 | return STT_REGISTER; | |
1476 | else | |
1477 | return type; | |
1478 | } | |
1479 | ||
1480 | /* A STB_GLOBAL,STT_REGISTER symbol should be BSF_GLOBAL | |
1481 | even in SHN_UNDEF section. */ | |
1482 | ||
1483 | static void | |
1484 | sparc64_elf_symbol_processing (abfd, asym) | |
6c08d697 | 1485 | bfd *abfd ATTRIBUTE_UNUSED; |
587ff49e RH |
1486 | asymbol *asym; |
1487 | { | |
1488 | elf_symbol_type *elfsym; | |
1489 | ||
1490 | elfsym = (elf_symbol_type *) asym; | |
1491 | if (elfsym->internal_elf_sym.st_info | |
1492 | == ELF_ST_INFO (STB_GLOBAL, STT_REGISTER)) | |
1493 | { | |
1494 | asym->flags |= BSF_GLOBAL; | |
1495 | } | |
1496 | } | |
1497 | ||
252b5132 RH |
1498 | /* Adjust a symbol defined by a dynamic object and referenced by a |
1499 | regular object. The current definition is in some section of the | |
1500 | dynamic object, but we're not including those sections. We have to | |
1501 | change the definition to something the rest of the link can | |
1502 | understand. */ | |
1503 | ||
1504 | static boolean | |
1505 | sparc64_elf_adjust_dynamic_symbol (info, h) | |
1506 | struct bfd_link_info *info; | |
1507 | struct elf_link_hash_entry *h; | |
1508 | { | |
1509 | bfd *dynobj; | |
1510 | asection *s; | |
1511 | unsigned int power_of_two; | |
1512 | ||
1513 | dynobj = elf_hash_table (info)->dynobj; | |
1514 | ||
1515 | /* Make sure we know what is going on here. */ | |
1516 | BFD_ASSERT (dynobj != NULL | |
1517 | && ((h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_PLT) | |
1518 | || h->weakdef != NULL | |
1519 | || ((h->elf_link_hash_flags | |
1520 | & ELF_LINK_HASH_DEF_DYNAMIC) != 0 | |
1521 | && (h->elf_link_hash_flags | |
1522 | & ELF_LINK_HASH_REF_REGULAR) != 0 | |
1523 | && (h->elf_link_hash_flags | |
1524 | & ELF_LINK_HASH_DEF_REGULAR) == 0))); | |
1525 | ||
1526 | /* If this is a function, put it in the procedure linkage table. We | |
1527 | will fill in the contents of the procedure linkage table later | |
1528 | (although we could actually do it here). The STT_NOTYPE | |
1529 | condition is a hack specifically for the Oracle libraries | |
1530 | delivered for Solaris; for some inexplicable reason, they define | |
1531 | some of their functions as STT_NOTYPE when they really should be | |
1532 | STT_FUNC. */ | |
1533 | if (h->type == STT_FUNC | |
1534 | || (h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_PLT) != 0 | |
1535 | || (h->type == STT_NOTYPE | |
1536 | && (h->root.type == bfd_link_hash_defined | |
1537 | || h->root.type == bfd_link_hash_defweak) | |
1538 | && (h->root.u.def.section->flags & SEC_CODE) != 0)) | |
1539 | { | |
1540 | if (! elf_hash_table (info)->dynamic_sections_created) | |
1541 | { | |
1542 | /* This case can occur if we saw a WPLT30 reloc in an input | |
1543 | file, but none of the input files were dynamic objects. | |
1544 | In such a case, we don't actually need to build a | |
1545 | procedure linkage table, and we can just do a WDISP30 | |
1546 | reloc instead. */ | |
1547 | BFD_ASSERT ((h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_PLT) != 0); | |
1548 | return true; | |
1549 | } | |
1550 | ||
1551 | s = bfd_get_section_by_name (dynobj, ".plt"); | |
1552 | BFD_ASSERT (s != NULL); | |
1553 | ||
1554 | /* The first four bit in .plt is reserved. */ | |
1555 | if (s->_raw_size == 0) | |
1556 | s->_raw_size = PLT_HEADER_SIZE; | |
1557 | ||
1558 | /* If this symbol is not defined in a regular file, and we are | |
1559 | not generating a shared library, then set the symbol to this | |
1560 | location in the .plt. This is required to make function | |
1561 | pointers compare as equal between the normal executable and | |
1562 | the shared library. */ | |
1563 | if (! info->shared | |
1564 | && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0) | |
1565 | { | |
1566 | h->root.u.def.section = s; | |
1567 | h->root.u.def.value = s->_raw_size; | |
1568 | } | |
1569 | ||
1570 | /* To simplify matters later, just store the plt index here. */ | |
1571 | h->plt.offset = s->_raw_size / PLT_ENTRY_SIZE; | |
1572 | ||
1573 | /* Make room for this entry. */ | |
1574 | s->_raw_size += PLT_ENTRY_SIZE; | |
1575 | ||
1576 | /* We also need to make an entry in the .rela.plt section. */ | |
1577 | ||
1578 | s = bfd_get_section_by_name (dynobj, ".rela.plt"); | |
1579 | BFD_ASSERT (s != NULL); | |
1580 | ||
252b5132 RH |
1581 | s->_raw_size += sizeof (Elf64_External_Rela); |
1582 | ||
1583 | /* The procedure linkage table size is bounded by the magnitude | |
1584 | of the offset we can describe in the entry. */ | |
1585 | if (s->_raw_size >= (bfd_vma)1 << 32) | |
1586 | { | |
1587 | bfd_set_error (bfd_error_bad_value); | |
1588 | return false; | |
1589 | } | |
1590 | ||
1591 | return true; | |
1592 | } | |
1593 | ||
1594 | /* If this is a weak symbol, and there is a real definition, the | |
1595 | processor independent code will have arranged for us to see the | |
1596 | real definition first, and we can just use the same value. */ | |
1597 | if (h->weakdef != NULL) | |
1598 | { | |
1599 | BFD_ASSERT (h->weakdef->root.type == bfd_link_hash_defined | |
1600 | || h->weakdef->root.type == bfd_link_hash_defweak); | |
1601 | h->root.u.def.section = h->weakdef->root.u.def.section; | |
1602 | h->root.u.def.value = h->weakdef->root.u.def.value; | |
1603 | return true; | |
1604 | } | |
1605 | ||
1606 | /* This is a reference to a symbol defined by a dynamic object which | |
1607 | is not a function. */ | |
1608 | ||
1609 | /* If we are creating a shared library, we must presume that the | |
1610 | only references to the symbol are via the global offset table. | |
1611 | For such cases we need not do anything here; the relocations will | |
1612 | be handled correctly by relocate_section. */ | |
1613 | if (info->shared) | |
1614 | return true; | |
1615 | ||
1616 | /* We must allocate the symbol in our .dynbss section, which will | |
1617 | become part of the .bss section of the executable. There will be | |
1618 | an entry for this symbol in the .dynsym section. The dynamic | |
1619 | object will contain position independent code, so all references | |
1620 | from the dynamic object to this symbol will go through the global | |
1621 | offset table. The dynamic linker will use the .dynsym entry to | |
1622 | determine the address it must put in the global offset table, so | |
1623 | both the dynamic object and the regular object will refer to the | |
1624 | same memory location for the variable. */ | |
1625 | ||
1626 | s = bfd_get_section_by_name (dynobj, ".dynbss"); | |
1627 | BFD_ASSERT (s != NULL); | |
1628 | ||
1629 | /* We must generate a R_SPARC_COPY reloc to tell the dynamic linker | |
1630 | to copy the initial value out of the dynamic object and into the | |
1631 | runtime process image. We need to remember the offset into the | |
1632 | .rel.bss section we are going to use. */ | |
1633 | if ((h->root.u.def.section->flags & SEC_ALLOC) != 0) | |
1634 | { | |
1635 | asection *srel; | |
1636 | ||
1637 | srel = bfd_get_section_by_name (dynobj, ".rela.bss"); | |
1638 | BFD_ASSERT (srel != NULL); | |
1639 | srel->_raw_size += sizeof (Elf64_External_Rela); | |
1640 | h->elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_COPY; | |
1641 | } | |
1642 | ||
1643 | /* We need to figure out the alignment required for this symbol. I | |
1644 | have no idea how ELF linkers handle this. 16-bytes is the size | |
1645 | of the largest type that requires hard alignment -- long double. */ | |
1646 | power_of_two = bfd_log2 (h->size); | |
1647 | if (power_of_two > 4) | |
1648 | power_of_two = 4; | |
1649 | ||
1650 | /* Apply the required alignment. */ | |
1651 | s->_raw_size = BFD_ALIGN (s->_raw_size, | |
1652 | (bfd_size_type) (1 << power_of_two)); | |
1653 | if (power_of_two > bfd_get_section_alignment (dynobj, s)) | |
1654 | { | |
1655 | if (! bfd_set_section_alignment (dynobj, s, power_of_two)) | |
1656 | return false; | |
1657 | } | |
1658 | ||
1659 | /* Define the symbol as being at this point in the section. */ | |
1660 | h->root.u.def.section = s; | |
1661 | h->root.u.def.value = s->_raw_size; | |
1662 | ||
1663 | /* Increment the section size to make room for the symbol. */ | |
1664 | s->_raw_size += h->size; | |
1665 | ||
1666 | return true; | |
1667 | } | |
1668 | ||
1669 | /* Set the sizes of the dynamic sections. */ | |
1670 | ||
1671 | static boolean | |
1672 | sparc64_elf_size_dynamic_sections (output_bfd, info) | |
1673 | bfd *output_bfd; | |
1674 | struct bfd_link_info *info; | |
1675 | { | |
1676 | bfd *dynobj; | |
1677 | asection *s; | |
252b5132 RH |
1678 | boolean relplt; |
1679 | ||
1680 | dynobj = elf_hash_table (info)->dynobj; | |
1681 | BFD_ASSERT (dynobj != NULL); | |
1682 | ||
1683 | if (elf_hash_table (info)->dynamic_sections_created) | |
1684 | { | |
1685 | /* Set the contents of the .interp section to the interpreter. */ | |
1686 | if (! info->shared) | |
1687 | { | |
1688 | s = bfd_get_section_by_name (dynobj, ".interp"); | |
1689 | BFD_ASSERT (s != NULL); | |
1690 | s->_raw_size = sizeof ELF_DYNAMIC_INTERPRETER; | |
1691 | s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER; | |
1692 | } | |
1693 | } | |
1694 | else | |
1695 | { | |
1696 | /* We may have created entries in the .rela.got section. | |
1697 | However, if we are not creating the dynamic sections, we will | |
1698 | not actually use these entries. Reset the size of .rela.got, | |
1699 | which will cause it to get stripped from the output file | |
1700 | below. */ | |
1701 | s = bfd_get_section_by_name (dynobj, ".rela.got"); | |
1702 | if (s != NULL) | |
1703 | s->_raw_size = 0; | |
1704 | } | |
1705 | ||
1706 | /* The check_relocs and adjust_dynamic_symbol entry points have | |
1707 | determined the sizes of the various dynamic sections. Allocate | |
1708 | memory for them. */ | |
252b5132 RH |
1709 | relplt = false; |
1710 | for (s = dynobj->sections; s != NULL; s = s->next) | |
1711 | { | |
1712 | const char *name; | |
1713 | boolean strip; | |
1714 | ||
1715 | if ((s->flags & SEC_LINKER_CREATED) == 0) | |
1716 | continue; | |
1717 | ||
1718 | /* It's OK to base decisions on the section name, because none | |
1719 | of the dynobj section names depend upon the input files. */ | |
1720 | name = bfd_get_section_name (dynobj, s); | |
1721 | ||
1722 | strip = false; | |
1723 | ||
1724 | if (strncmp (name, ".rela", 5) == 0) | |
1725 | { | |
1726 | if (s->_raw_size == 0) | |
1727 | { | |
1728 | /* If we don't need this section, strip it from the | |
1729 | output file. This is to handle .rela.bss and | |
1730 | .rel.plt. We must create it in | |
1731 | create_dynamic_sections, because it must be created | |
1732 | before the linker maps input sections to output | |
1733 | sections. The linker does that before | |
1734 | adjust_dynamic_symbol is called, and it is that | |
1735 | function which decides whether anything needs to go | |
1736 | into these sections. */ | |
1737 | strip = true; | |
1738 | } | |
1739 | else | |
1740 | { | |
252b5132 RH |
1741 | if (strcmp (name, ".rela.plt") == 0) |
1742 | relplt = true; | |
1743 | ||
1744 | /* We use the reloc_count field as a counter if we need | |
1745 | to copy relocs into the output file. */ | |
1746 | s->reloc_count = 0; | |
1747 | } | |
1748 | } | |
1749 | else if (strcmp (name, ".plt") != 0 | |
1750 | && strncmp (name, ".got", 4) != 0) | |
1751 | { | |
1752 | /* It's not one of our sections, so don't allocate space. */ | |
1753 | continue; | |
1754 | } | |
1755 | ||
1756 | if (strip) | |
1757 | { | |
7f8d5fc9 | 1758 | _bfd_strip_section_from_output (info, s); |
252b5132 RH |
1759 | continue; |
1760 | } | |
1761 | ||
1762 | /* Allocate memory for the section contents. Zero the memory | |
1763 | for the benefit of .rela.plt, which has 4 unused entries | |
1764 | at the beginning, and we don't want garbage. */ | |
1765 | s->contents = (bfd_byte *) bfd_zalloc (dynobj, s->_raw_size); | |
1766 | if (s->contents == NULL && s->_raw_size != 0) | |
1767 | return false; | |
1768 | } | |
1769 | ||
1770 | if (elf_hash_table (info)->dynamic_sections_created) | |
1771 | { | |
1772 | /* Add some entries to the .dynamic section. We fill in the | |
1773 | values later, in sparc64_elf_finish_dynamic_sections, but we | |
1774 | must add the entries now so that we get the correct size for | |
1775 | the .dynamic section. The DT_DEBUG entry is filled in by the | |
1776 | dynamic linker and used by the debugger. */ | |
dc810e39 AM |
1777 | #define add_dynamic_entry(TAG, VAL) \ |
1778 | bfd_elf64_add_dynamic_entry (info, (bfd_vma) (TAG), (bfd_vma) (VAL)) | |
1779 | ||
587ff49e RH |
1780 | int reg; |
1781 | struct sparc64_elf_app_reg * app_regs; | |
1782 | struct bfd_strtab_hash *dynstr; | |
1783 | struct elf_link_hash_table *eht = elf_hash_table (info); | |
1784 | ||
dc810e39 | 1785 | if (!info->shared) |
252b5132 | 1786 | { |
dc810e39 | 1787 | if (!add_dynamic_entry (DT_DEBUG, 0)) |
252b5132 RH |
1788 | return false; |
1789 | } | |
1790 | ||
1791 | if (relplt) | |
1792 | { | |
dc810e39 AM |
1793 | if (!add_dynamic_entry (DT_PLTGOT, 0) |
1794 | || !add_dynamic_entry (DT_PLTRELSZ, 0) | |
1795 | || !add_dynamic_entry (DT_PLTREL, DT_RELA) | |
1796 | || !add_dynamic_entry (DT_JMPREL, 0)) | |
252b5132 RH |
1797 | return false; |
1798 | } | |
1799 | ||
dc810e39 AM |
1800 | if (!add_dynamic_entry (DT_RELA, 0) |
1801 | || !add_dynamic_entry (DT_RELASZ, 0) | |
1802 | || !add_dynamic_entry (DT_RELAENT, sizeof (Elf64_External_Rela))) | |
252b5132 RH |
1803 | return false; |
1804 | ||
db6751f2 | 1805 | if (info->flags & DF_TEXTREL) |
252b5132 | 1806 | { |
dc810e39 | 1807 | if (!add_dynamic_entry (DT_TEXTREL, 0)) |
252b5132 RH |
1808 | return false; |
1809 | } | |
587ff49e RH |
1810 | |
1811 | /* Add dynamic STT_REGISTER symbols and corresponding DT_SPARC_REGISTER | |
1812 | entries if needed. */ | |
1813 | app_regs = sparc64_elf_hash_table (info)->app_regs; | |
1814 | dynstr = eht->dynstr; | |
1815 | ||
1816 | for (reg = 0; reg < 4; reg++) | |
1817 | if (app_regs [reg].name != NULL) | |
1818 | { | |
1819 | struct elf_link_local_dynamic_entry *entry, *e; | |
435b1e90 | 1820 | |
dc810e39 | 1821 | if (!add_dynamic_entry (DT_SPARC_REGISTER, 0)) |
587ff49e RH |
1822 | return false; |
1823 | ||
1824 | entry = (struct elf_link_local_dynamic_entry *) | |
1825 | bfd_hash_allocate (&info->hash->table, sizeof (*entry)); | |
1826 | if (entry == NULL) | |
1827 | return false; | |
1828 | ||
1829 | /* We cheat here a little bit: the symbol will not be local, so we | |
1830 | put it at the end of the dynlocal linked list. We will fix it | |
1831 | later on, as we have to fix other fields anyway. */ | |
1832 | entry->isym.st_value = reg < 2 ? reg + 2 : reg + 4; | |
1833 | entry->isym.st_size = 0; | |
1834 | if (*app_regs [reg].name != '\0') | |
1835 | entry->isym.st_name | |
1836 | = _bfd_stringtab_add (dynstr, app_regs[reg].name, true, false); | |
1837 | else | |
1838 | entry->isym.st_name = 0; | |
1839 | entry->isym.st_other = 0; | |
1840 | entry->isym.st_info = ELF_ST_INFO (app_regs [reg].bind, | |
1841 | STT_REGISTER); | |
1842 | entry->isym.st_shndx = app_regs [reg].shndx; | |
1843 | entry->next = NULL; | |
1844 | entry->input_bfd = output_bfd; | |
1845 | entry->input_indx = -1; | |
1846 | ||
1847 | if (eht->dynlocal == NULL) | |
1848 | eht->dynlocal = entry; | |
1849 | else | |
1850 | { | |
1851 | for (e = eht->dynlocal; e->next; e = e->next) | |
1852 | ; | |
1853 | e->next = entry; | |
1854 | } | |
1855 | eht->dynsymcount++; | |
1856 | } | |
252b5132 | 1857 | } |
dc810e39 | 1858 | #undef add_dynamic_entry |
252b5132 | 1859 | |
252b5132 RH |
1860 | return true; |
1861 | } | |
252b5132 | 1862 | \f |
f7775d95 JJ |
1863 | #define SET_SEC_DO_RELAX(section) do { elf_section_data(section)->tdata = (void *)1; } while (0) |
1864 | #define SEC_DO_RELAX(section) (elf_section_data(section)->tdata == (void *)1) | |
1865 | ||
f7775d95 JJ |
1866 | static boolean |
1867 | sparc64_elf_relax_section (abfd, section, link_info, again) | |
1868 | bfd *abfd ATTRIBUTE_UNUSED; | |
1869 | asection *section ATTRIBUTE_UNUSED; | |
1870 | struct bfd_link_info *link_info ATTRIBUTE_UNUSED; | |
1871 | boolean *again; | |
1872 | { | |
1873 | *again = false; | |
1874 | SET_SEC_DO_RELAX (section); | |
1875 | return true; | |
1876 | } | |
1877 | \f | |
252b5132 RH |
1878 | /* Relocate a SPARC64 ELF section. */ |
1879 | ||
1880 | static boolean | |
1881 | sparc64_elf_relocate_section (output_bfd, info, input_bfd, input_section, | |
1882 | contents, relocs, local_syms, local_sections) | |
1883 | bfd *output_bfd; | |
1884 | struct bfd_link_info *info; | |
1885 | bfd *input_bfd; | |
1886 | asection *input_section; | |
1887 | bfd_byte *contents; | |
1888 | Elf_Internal_Rela *relocs; | |
1889 | Elf_Internal_Sym *local_syms; | |
1890 | asection **local_sections; | |
1891 | { | |
1892 | bfd *dynobj; | |
1893 | Elf_Internal_Shdr *symtab_hdr; | |
1894 | struct elf_link_hash_entry **sym_hashes; | |
1895 | bfd_vma *local_got_offsets; | |
1896 | bfd_vma got_base; | |
1897 | asection *sgot; | |
1898 | asection *splt; | |
1899 | asection *sreloc; | |
1900 | Elf_Internal_Rela *rel; | |
1901 | Elf_Internal_Rela *relend; | |
1902 | ||
1903 | dynobj = elf_hash_table (info)->dynobj; | |
1904 | symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr; | |
1905 | sym_hashes = elf_sym_hashes (input_bfd); | |
1906 | local_got_offsets = elf_local_got_offsets (input_bfd); | |
1907 | ||
1908 | if (elf_hash_table(info)->hgot == NULL) | |
1909 | got_base = 0; | |
1910 | else | |
1911 | got_base = elf_hash_table (info)->hgot->root.u.def.value; | |
1912 | ||
1913 | sgot = splt = sreloc = NULL; | |
1914 | ||
1915 | rel = relocs; | |
e90fdc1a | 1916 | relend = relocs + NUM_SHDR_ENTRIES (& elf_section_data (input_section)->rel_hdr); |
252b5132 RH |
1917 | for (; rel < relend; rel++) |
1918 | { | |
1919 | int r_type; | |
1920 | reloc_howto_type *howto; | |
6c08d697 | 1921 | unsigned long r_symndx; |
252b5132 RH |
1922 | struct elf_link_hash_entry *h; |
1923 | Elf_Internal_Sym *sym; | |
1924 | asection *sec; | |
1925 | bfd_vma relocation; | |
1926 | bfd_reloc_status_type r; | |
1927 | ||
f65054f7 | 1928 | r_type = ELF64_R_TYPE_ID (rel->r_info); |
60dac299 | 1929 | if (r_type < 0 || r_type >= (int) R_SPARC_max_std) |
252b5132 RH |
1930 | { |
1931 | bfd_set_error (bfd_error_bad_value); | |
1932 | return false; | |
1933 | } | |
1934 | howto = sparc64_elf_howto_table + r_type; | |
1935 | ||
1936 | r_symndx = ELF64_R_SYM (rel->r_info); | |
1937 | ||
1938 | if (info->relocateable) | |
1939 | { | |
1940 | /* This is a relocateable link. We don't have to change | |
1941 | anything, unless the reloc is against a section symbol, | |
1942 | in which case we have to adjust according to where the | |
1943 | section symbol winds up in the output section. */ | |
1944 | if (r_symndx < symtab_hdr->sh_info) | |
1945 | { | |
1946 | sym = local_syms + r_symndx; | |
1947 | if (ELF_ST_TYPE (sym->st_info) == STT_SECTION) | |
1948 | { | |
1949 | sec = local_sections[r_symndx]; | |
1950 | rel->r_addend += sec->output_offset + sym->st_value; | |
1951 | } | |
1952 | } | |
1953 | ||
1954 | continue; | |
1955 | } | |
1956 | ||
1957 | /* This is a final link. */ | |
1958 | h = NULL; | |
1959 | sym = NULL; | |
1960 | sec = NULL; | |
1961 | if (r_symndx < symtab_hdr->sh_info) | |
1962 | { | |
1963 | sym = local_syms + r_symndx; | |
1964 | sec = local_sections[r_symndx]; | |
1965 | relocation = (sec->output_section->vma | |
1966 | + sec->output_offset | |
1967 | + sym->st_value); | |
1968 | } | |
1969 | else | |
1970 | { | |
1971 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
1972 | while (h->root.type == bfd_link_hash_indirect | |
1973 | || h->root.type == bfd_link_hash_warning) | |
1974 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
1975 | if (h->root.type == bfd_link_hash_defined | |
1976 | || h->root.type == bfd_link_hash_defweak) | |
1977 | { | |
1978 | boolean skip_it = false; | |
1979 | sec = h->root.u.def.section; | |
1980 | ||
1981 | switch (r_type) | |
1982 | { | |
1983 | case R_SPARC_WPLT30: | |
1984 | case R_SPARC_PLT32: | |
1985 | case R_SPARC_HIPLT22: | |
1986 | case R_SPARC_LOPLT10: | |
1987 | case R_SPARC_PCPLT32: | |
1988 | case R_SPARC_PCPLT22: | |
1989 | case R_SPARC_PCPLT10: | |
1990 | case R_SPARC_PLT64: | |
1991 | if (h->plt.offset != (bfd_vma) -1) | |
1992 | skip_it = true; | |
1993 | break; | |
1994 | ||
1995 | case R_SPARC_GOT10: | |
1996 | case R_SPARC_GOT13: | |
1997 | case R_SPARC_GOT22: | |
1998 | if (elf_hash_table(info)->dynamic_sections_created | |
1999 | && (!info->shared | |
2000 | || (!info->symbolic && h->dynindx != -1) | |
2001 | || !(h->elf_link_hash_flags | |
2002 | & ELF_LINK_HASH_DEF_REGULAR))) | |
2003 | skip_it = true; | |
2004 | break; | |
2005 | ||
2006 | case R_SPARC_PC10: | |
2007 | case R_SPARC_PC22: | |
2008 | case R_SPARC_PC_HH22: | |
2009 | case R_SPARC_PC_HM10: | |
2010 | case R_SPARC_PC_LM22: | |
2011 | if (!strcmp(h->root.root.string, "_GLOBAL_OFFSET_TABLE_")) | |
2012 | break; | |
2013 | /* FALLTHRU */ | |
2014 | ||
2015 | case R_SPARC_8: | |
2016 | case R_SPARC_16: | |
2017 | case R_SPARC_32: | |
2018 | case R_SPARC_DISP8: | |
2019 | case R_SPARC_DISP16: | |
2020 | case R_SPARC_DISP32: | |
2021 | case R_SPARC_WDISP30: | |
2022 | case R_SPARC_WDISP22: | |
2023 | case R_SPARC_HI22: | |
2024 | case R_SPARC_22: | |
2025 | case R_SPARC_13: | |
2026 | case R_SPARC_LO10: | |
2027 | case R_SPARC_UA32: | |
2028 | case R_SPARC_10: | |
2029 | case R_SPARC_11: | |
2030 | case R_SPARC_64: | |
2031 | case R_SPARC_OLO10: | |
2032 | case R_SPARC_HH22: | |
2033 | case R_SPARC_HM10: | |
2034 | case R_SPARC_LM22: | |
2035 | case R_SPARC_WDISP19: | |
2036 | case R_SPARC_WDISP16: | |
2037 | case R_SPARC_7: | |
2038 | case R_SPARC_5: | |
2039 | case R_SPARC_6: | |
2040 | case R_SPARC_DISP64: | |
2041 | case R_SPARC_HIX22: | |
2042 | case R_SPARC_LOX10: | |
2043 | case R_SPARC_H44: | |
2044 | case R_SPARC_M44: | |
2045 | case R_SPARC_L44: | |
2046 | case R_SPARC_UA64: | |
2047 | case R_SPARC_UA16: | |
2048 | if (info->shared | |
2049 | && ((!info->symbolic && h->dynindx != -1) | |
2050 | || !(h->elf_link_hash_flags | |
2051 | & ELF_LINK_HASH_DEF_REGULAR))) | |
2052 | skip_it = true; | |
2053 | break; | |
2054 | } | |
2055 | ||
2056 | if (skip_it) | |
2057 | { | |
2058 | /* In these cases, we don't need the relocation | |
2059 | value. We check specially because in some | |
2060 | obscure cases sec->output_section will be NULL. */ | |
2061 | relocation = 0; | |
2062 | } | |
2063 | else | |
2064 | { | |
2065 | relocation = (h->root.u.def.value | |
2066 | + sec->output_section->vma | |
2067 | + sec->output_offset); | |
2068 | } | |
2069 | } | |
2070 | else if (h->root.type == bfd_link_hash_undefweak) | |
2071 | relocation = 0; | |
3a27a730 L |
2072 | else if (info->shared && !info->symbolic |
2073 | && !info->no_undefined | |
2074 | && ELF_ST_VISIBILITY (h->other) == STV_DEFAULT) | |
252b5132 RH |
2075 | relocation = 0; |
2076 | else | |
2077 | { | |
2078 | if (! ((*info->callbacks->undefined_symbol) | |
2079 | (info, h->root.root.string, input_bfd, | |
5cc7c785 | 2080 | input_section, rel->r_offset, |
3a27a730 L |
2081 | (!info->shared || info->no_undefined |
2082 | || ELF_ST_VISIBILITY (h->other))))) | |
252b5132 | 2083 | return false; |
be040dbb JJ |
2084 | |
2085 | /* To avoid generating warning messages about truncated | |
2086 | relocations, set the relocation's address to be the same as | |
2087 | the start of this section. */ | |
2088 | ||
2089 | if (input_section->output_section != NULL) | |
2090 | relocation = input_section->output_section->vma; | |
2091 | else | |
2092 | relocation = 0; | |
252b5132 RH |
2093 | } |
2094 | } | |
2095 | ||
2096 | /* When generating a shared object, these relocations are copied | |
2097 | into the output file to be resolved at run time. */ | |
2098 | if (info->shared && (input_section->flags & SEC_ALLOC)) | |
2099 | { | |
2100 | switch (r_type) | |
2101 | { | |
2102 | case R_SPARC_PC10: | |
2103 | case R_SPARC_PC22: | |
2104 | case R_SPARC_PC_HH22: | |
2105 | case R_SPARC_PC_HM10: | |
2106 | case R_SPARC_PC_LM22: | |
2107 | if (h != NULL | |
2108 | && !strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_")) | |
2109 | break; | |
2110 | /* Fall through. */ | |
2111 | case R_SPARC_DISP8: | |
2112 | case R_SPARC_DISP16: | |
2113 | case R_SPARC_DISP32: | |
2114 | case R_SPARC_WDISP30: | |
2115 | case R_SPARC_WDISP22: | |
2116 | case R_SPARC_WDISP19: | |
2117 | case R_SPARC_WDISP16: | |
2118 | case R_SPARC_DISP64: | |
2119 | if (h == NULL) | |
2120 | break; | |
2121 | /* Fall through. */ | |
2122 | case R_SPARC_8: | |
2123 | case R_SPARC_16: | |
2124 | case R_SPARC_32: | |
2125 | case R_SPARC_HI22: | |
2126 | case R_SPARC_22: | |
2127 | case R_SPARC_13: | |
2128 | case R_SPARC_LO10: | |
2129 | case R_SPARC_UA32: | |
2130 | case R_SPARC_10: | |
2131 | case R_SPARC_11: | |
2132 | case R_SPARC_64: | |
2133 | case R_SPARC_OLO10: | |
2134 | case R_SPARC_HH22: | |
2135 | case R_SPARC_HM10: | |
2136 | case R_SPARC_LM22: | |
2137 | case R_SPARC_7: | |
2138 | case R_SPARC_5: | |
2139 | case R_SPARC_6: | |
2140 | case R_SPARC_HIX22: | |
2141 | case R_SPARC_LOX10: | |
2142 | case R_SPARC_H44: | |
2143 | case R_SPARC_M44: | |
2144 | case R_SPARC_L44: | |
2145 | case R_SPARC_UA64: | |
2146 | case R_SPARC_UA16: | |
2147 | { | |
2148 | Elf_Internal_Rela outrel; | |
2149 | boolean skip; | |
2150 | ||
2151 | if (sreloc == NULL) | |
2152 | { | |
2153 | const char *name = | |
2154 | (bfd_elf_string_from_elf_section | |
2155 | (input_bfd, | |
2156 | elf_elfheader (input_bfd)->e_shstrndx, | |
2157 | elf_section_data (input_section)->rel_hdr.sh_name)); | |
2158 | ||
2159 | if (name == NULL) | |
2160 | return false; | |
2161 | ||
2162 | BFD_ASSERT (strncmp (name, ".rela", 5) == 0 | |
2163 | && strcmp (bfd_get_section_name(input_bfd, | |
2164 | input_section), | |
2165 | name + 5) == 0); | |
2166 | ||
2167 | sreloc = bfd_get_section_by_name (dynobj, name); | |
2168 | BFD_ASSERT (sreloc != NULL); | |
2169 | } | |
2170 | ||
2171 | skip = false; | |
2172 | ||
2173 | if (elf_section_data (input_section)->stab_info == NULL) | |
2174 | outrel.r_offset = rel->r_offset; | |
2175 | else | |
2176 | { | |
2177 | bfd_vma off; | |
2178 | ||
2179 | off = (_bfd_stab_section_offset | |
2180 | (output_bfd, &elf_hash_table (info)->stab_info, | |
2181 | input_section, | |
2182 | &elf_section_data (input_section)->stab_info, | |
2183 | rel->r_offset)); | |
2184 | if (off == MINUS_ONE) | |
2185 | skip = true; | |
2186 | outrel.r_offset = off; | |
2187 | } | |
2188 | ||
2189 | outrel.r_offset += (input_section->output_section->vma | |
2190 | + input_section->output_offset); | |
2191 | ||
2192 | /* Optimize unaligned reloc usage now that we know where | |
2193 | it finally resides. */ | |
2194 | switch (r_type) | |
2195 | { | |
2196 | case R_SPARC_16: | |
2197 | if (outrel.r_offset & 1) r_type = R_SPARC_UA16; | |
2198 | break; | |
2199 | case R_SPARC_UA16: | |
2200 | if (!(outrel.r_offset & 1)) r_type = R_SPARC_16; | |
2201 | break; | |
2202 | case R_SPARC_32: | |
2203 | if (outrel.r_offset & 3) r_type = R_SPARC_UA32; | |
2204 | break; | |
2205 | case R_SPARC_UA32: | |
2206 | if (!(outrel.r_offset & 3)) r_type = R_SPARC_32; | |
2207 | break; | |
2208 | case R_SPARC_64: | |
2209 | if (outrel.r_offset & 7) r_type = R_SPARC_UA64; | |
2210 | break; | |
2211 | case R_SPARC_UA64: | |
2212 | if (!(outrel.r_offset & 7)) r_type = R_SPARC_64; | |
2213 | break; | |
2214 | } | |
2215 | ||
2216 | if (skip) | |
2217 | memset (&outrel, 0, sizeof outrel); | |
2218 | /* h->dynindx may be -1 if the symbol was marked to | |
2219 | become local. */ | |
2220 | else if (h != NULL | |
2221 | && ((! info->symbolic && h->dynindx != -1) | |
2222 | || (h->elf_link_hash_flags | |
2223 | & ELF_LINK_HASH_DEF_REGULAR) == 0)) | |
2224 | { | |
2225 | BFD_ASSERT (h->dynindx != -1); | |
f65054f7 RH |
2226 | outrel.r_info |
2227 | = ELF64_R_INFO (h->dynindx, | |
2228 | ELF64_R_TYPE_INFO ( | |
2229 | ELF64_R_TYPE_DATA (rel->r_info), | |
2230 | r_type)); | |
252b5132 RH |
2231 | outrel.r_addend = rel->r_addend; |
2232 | } | |
2233 | else | |
2234 | { | |
2235 | if (r_type == R_SPARC_64) | |
2236 | { | |
2237 | outrel.r_info = ELF64_R_INFO (0, R_SPARC_RELATIVE); | |
2238 | outrel.r_addend = relocation + rel->r_addend; | |
2239 | } | |
2240 | else | |
2241 | { | |
2242 | long indx; | |
2243 | ||
2244 | if (h == NULL) | |
2245 | sec = local_sections[r_symndx]; | |
2246 | else | |
2247 | { | |
2248 | BFD_ASSERT (h->root.type == bfd_link_hash_defined | |
2249 | || (h->root.type | |
2250 | == bfd_link_hash_defweak)); | |
2251 | sec = h->root.u.def.section; | |
2252 | } | |
2253 | if (sec != NULL && bfd_is_abs_section (sec)) | |
2254 | indx = 0; | |
2255 | else if (sec == NULL || sec->owner == NULL) | |
2256 | { | |
2257 | bfd_set_error (bfd_error_bad_value); | |
2258 | return false; | |
2259 | } | |
2260 | else | |
2261 | { | |
2262 | asection *osec; | |
2263 | ||
2264 | osec = sec->output_section; | |
2265 | indx = elf_section_data (osec)->dynindx; | |
2266 | ||
2267 | /* FIXME: we really should be able to link non-pic | |
2268 | shared libraries. */ | |
2269 | if (indx == 0) | |
2270 | { | |
2271 | BFD_FAIL (); | |
2272 | (*_bfd_error_handler) | |
2273 | (_("%s: probably compiled without -fPIC?"), | |
2274 | bfd_get_filename (input_bfd)); | |
2275 | bfd_set_error (bfd_error_bad_value); | |
2276 | return false; | |
2277 | } | |
2278 | } | |
2279 | ||
f65054f7 RH |
2280 | outrel.r_info |
2281 | = ELF64_R_INFO (indx, | |
2282 | ELF64_R_TYPE_INFO ( | |
2283 | ELF64_R_TYPE_DATA (rel->r_info), | |
2284 | r_type)); | |
840a9995 | 2285 | outrel.r_addend = relocation + rel->r_addend; |
252b5132 RH |
2286 | } |
2287 | } | |
2288 | ||
2289 | bfd_elf64_swap_reloca_out (output_bfd, &outrel, | |
2290 | (((Elf64_External_Rela *) | |
2291 | sreloc->contents) | |
2292 | + sreloc->reloc_count)); | |
2293 | ++sreloc->reloc_count; | |
2294 | ||
2295 | /* This reloc will be computed at runtime, so there's no | |
20278fa3 JJ |
2296 | need to do anything now. */ |
2297 | continue; | |
252b5132 RH |
2298 | } |
2299 | break; | |
2300 | } | |
2301 | } | |
2302 | ||
2303 | switch (r_type) | |
2304 | { | |
2305 | case R_SPARC_GOT10: | |
2306 | case R_SPARC_GOT13: | |
2307 | case R_SPARC_GOT22: | |
2308 | /* Relocation is to the entry for this symbol in the global | |
2309 | offset table. */ | |
2310 | if (sgot == NULL) | |
2311 | { | |
2312 | sgot = bfd_get_section_by_name (dynobj, ".got"); | |
2313 | BFD_ASSERT (sgot != NULL); | |
2314 | } | |
2315 | ||
2316 | if (h != NULL) | |
2317 | { | |
2318 | bfd_vma off = h->got.offset; | |
2319 | BFD_ASSERT (off != (bfd_vma) -1); | |
2320 | ||
2321 | if (! elf_hash_table (info)->dynamic_sections_created | |
2322 | || (info->shared | |
2323 | && (info->symbolic || h->dynindx == -1) | |
2324 | && (h->elf_link_hash_flags | |
2325 | & ELF_LINK_HASH_DEF_REGULAR))) | |
2326 | { | |
2327 | /* This is actually a static link, or it is a -Bsymbolic | |
2328 | link and the symbol is defined locally, or the symbol | |
2329 | was forced to be local because of a version file. We | |
2330 | must initialize this entry in the global offset table. | |
2331 | Since the offset must always be a multiple of 8, we | |
2332 | use the least significant bit to record whether we | |
2333 | have initialized it already. | |
2334 | ||
2335 | When doing a dynamic link, we create a .rela.got | |
2336 | relocation entry to initialize the value. This is | |
2337 | done in the finish_dynamic_symbol routine. */ | |
2338 | ||
2339 | if ((off & 1) != 0) | |
2340 | off &= ~1; | |
2341 | else | |
2342 | { | |
2343 | bfd_put_64 (output_bfd, relocation, | |
2344 | sgot->contents + off); | |
2345 | h->got.offset |= 1; | |
2346 | } | |
2347 | } | |
2348 | relocation = sgot->output_offset + off - got_base; | |
2349 | } | |
2350 | else | |
2351 | { | |
2352 | bfd_vma off; | |
2353 | ||
2354 | BFD_ASSERT (local_got_offsets != NULL); | |
2355 | off = local_got_offsets[r_symndx]; | |
2356 | BFD_ASSERT (off != (bfd_vma) -1); | |
2357 | ||
2358 | /* The offset must always be a multiple of 8. We use | |
2359 | the least significant bit to record whether we have | |
2360 | already processed this entry. */ | |
2361 | if ((off & 1) != 0) | |
2362 | off &= ~1; | |
2363 | else | |
2364 | { | |
252b5132 RH |
2365 | local_got_offsets[r_symndx] |= 1; |
2366 | ||
2367 | if (info->shared) | |
2368 | { | |
2369 | asection *srelgot; | |
2370 | Elf_Internal_Rela outrel; | |
2371 | ||
ea5fbc67 GK |
2372 | /* The Solaris 2.7 64-bit linker adds the contents |
2373 | of the location to the value of the reloc. | |
2374 | Note this is different behaviour to the | |
2375 | 32-bit linker, which both adds the contents | |
2376 | and ignores the addend. So clear the location. */ | |
dc810e39 AM |
2377 | bfd_put_64 (output_bfd, (bfd_vma) 0, |
2378 | sgot->contents + off); | |
435b1e90 | 2379 | |
252b5132 RH |
2380 | /* We need to generate a R_SPARC_RELATIVE reloc |
2381 | for the dynamic linker. */ | |
2382 | srelgot = bfd_get_section_by_name(dynobj, ".rela.got"); | |
2383 | BFD_ASSERT (srelgot != NULL); | |
2384 | ||
2385 | outrel.r_offset = (sgot->output_section->vma | |
2386 | + sgot->output_offset | |
2387 | + off); | |
2388 | outrel.r_info = ELF64_R_INFO (0, R_SPARC_RELATIVE); | |
2389 | outrel.r_addend = relocation; | |
2390 | bfd_elf64_swap_reloca_out (output_bfd, &outrel, | |
2391 | (((Elf64_External_Rela *) | |
2392 | srelgot->contents) | |
2393 | + srelgot->reloc_count)); | |
2394 | ++srelgot->reloc_count; | |
2395 | } | |
ea5fbc67 GK |
2396 | else |
2397 | bfd_put_64 (output_bfd, relocation, sgot->contents + off); | |
252b5132 RH |
2398 | } |
2399 | relocation = sgot->output_offset + off - got_base; | |
2400 | } | |
2401 | goto do_default; | |
2402 | ||
2403 | case R_SPARC_WPLT30: | |
2404 | case R_SPARC_PLT32: | |
2405 | case R_SPARC_HIPLT22: | |
2406 | case R_SPARC_LOPLT10: | |
2407 | case R_SPARC_PCPLT32: | |
2408 | case R_SPARC_PCPLT22: | |
2409 | case R_SPARC_PCPLT10: | |
2410 | case R_SPARC_PLT64: | |
2411 | /* Relocation is to the entry for this symbol in the | |
2412 | procedure linkage table. */ | |
2413 | BFD_ASSERT (h != NULL); | |
2414 | ||
2415 | if (h->plt.offset == (bfd_vma) -1) | |
2416 | { | |
2417 | /* We didn't make a PLT entry for this symbol. This | |
2418 | happens when statically linking PIC code, or when | |
2419 | using -Bsymbolic. */ | |
2420 | goto do_default; | |
2421 | } | |
2422 | ||
2423 | if (splt == NULL) | |
2424 | { | |
2425 | splt = bfd_get_section_by_name (dynobj, ".plt"); | |
2426 | BFD_ASSERT (splt != NULL); | |
2427 | } | |
2428 | ||
2429 | relocation = (splt->output_section->vma | |
2430 | + splt->output_offset | |
2431 | + sparc64_elf_plt_entry_offset (h->plt.offset)); | |
f7775d95 JJ |
2432 | if (r_type == R_SPARC_WPLT30) |
2433 | goto do_wplt30; | |
252b5132 RH |
2434 | goto do_default; |
2435 | ||
2436 | case R_SPARC_OLO10: | |
2437 | { | |
2438 | bfd_vma x; | |
2439 | ||
2440 | relocation += rel->r_addend; | |
2441 | relocation = (relocation & 0x3ff) + ELF64_R_TYPE_DATA (rel->r_info); | |
2442 | ||
2443 | x = bfd_get_32 (input_bfd, contents + rel->r_offset); | |
dc810e39 | 2444 | x = (x & ~(bfd_vma) 0x1fff) | (relocation & 0x1fff); |
252b5132 RH |
2445 | bfd_put_32 (input_bfd, x, contents + rel->r_offset); |
2446 | ||
2447 | r = bfd_check_overflow (howto->complain_on_overflow, | |
2448 | howto->bitsize, howto->rightshift, | |
2449 | bfd_arch_bits_per_address (input_bfd), | |
2450 | relocation); | |
2451 | } | |
2452 | break; | |
2453 | ||
2454 | case R_SPARC_WDISP16: | |
2455 | { | |
2456 | bfd_vma x; | |
2457 | ||
2458 | relocation += rel->r_addend; | |
2459 | /* Adjust for pc-relative-ness. */ | |
2460 | relocation -= (input_section->output_section->vma | |
2461 | + input_section->output_offset); | |
2462 | relocation -= rel->r_offset; | |
2463 | ||
2464 | x = bfd_get_32 (input_bfd, contents + rel->r_offset); | |
dc810e39 AM |
2465 | x &= ~(bfd_vma) 0x303fff; |
2466 | x |= ((((relocation >> 2) & 0xc000) << 6) | |
2467 | | ((relocation >> 2) & 0x3fff)); | |
252b5132 RH |
2468 | bfd_put_32 (input_bfd, x, contents + rel->r_offset); |
2469 | ||
2470 | r = bfd_check_overflow (howto->complain_on_overflow, | |
2471 | howto->bitsize, howto->rightshift, | |
2472 | bfd_arch_bits_per_address (input_bfd), | |
2473 | relocation); | |
2474 | } | |
2475 | break; | |
2476 | ||
2477 | case R_SPARC_HIX22: | |
2478 | { | |
2479 | bfd_vma x; | |
2480 | ||
2481 | relocation += rel->r_addend; | |
2482 | relocation = relocation ^ MINUS_ONE; | |
2483 | ||
2484 | x = bfd_get_32 (input_bfd, contents + rel->r_offset); | |
dc810e39 | 2485 | x = (x & ~(bfd_vma) 0x3fffff) | ((relocation >> 10) & 0x3fffff); |
252b5132 RH |
2486 | bfd_put_32 (input_bfd, x, contents + rel->r_offset); |
2487 | ||
2488 | r = bfd_check_overflow (howto->complain_on_overflow, | |
2489 | howto->bitsize, howto->rightshift, | |
2490 | bfd_arch_bits_per_address (input_bfd), | |
2491 | relocation); | |
2492 | } | |
2493 | break; | |
2494 | ||
2495 | case R_SPARC_LOX10: | |
2496 | { | |
2497 | bfd_vma x; | |
2498 | ||
2499 | relocation += rel->r_addend; | |
2500 | relocation = (relocation & 0x3ff) | 0x1c00; | |
2501 | ||
2502 | x = bfd_get_32 (input_bfd, contents + rel->r_offset); | |
dc810e39 | 2503 | x = (x & ~(bfd_vma) 0x1fff) | relocation; |
252b5132 RH |
2504 | bfd_put_32 (input_bfd, x, contents + rel->r_offset); |
2505 | ||
2506 | r = bfd_reloc_ok; | |
2507 | } | |
2508 | break; | |
2509 | ||
f7775d95 JJ |
2510 | case R_SPARC_WDISP30: |
2511 | do_wplt30: | |
2512 | if (SEC_DO_RELAX (input_section) | |
2513 | && rel->r_offset + 4 < input_section->_raw_size) | |
2514 | { | |
2515 | #define G0 0 | |
2516 | #define O7 15 | |
2517 | #define XCC (2 << 20) | |
2518 | #define COND(x) (((x)&0xf)<<25) | |
2519 | #define CONDA COND(0x8) | |
2520 | #define INSN_BPA (F2(0,1) | CONDA | BPRED | XCC) | |
2521 | #define INSN_BA (F2(0,2) | CONDA) | |
2522 | #define INSN_OR F3(2, 0x2, 0) | |
2523 | #define INSN_NOP F2(0,4) | |
2524 | ||
2525 | bfd_vma x, y; | |
2526 | ||
2527 | /* If the instruction is a call with either: | |
2528 | restore | |
2529 | arithmetic instruction with rd == %o7 | |
2530 | where rs1 != %o7 and rs2 if it is register != %o7 | |
2531 | then we can optimize if the call destination is near | |
2532 | by changing the call into a branch always. */ | |
2533 | x = bfd_get_32 (input_bfd, contents + rel->r_offset); | |
2534 | y = bfd_get_32 (input_bfd, contents + rel->r_offset + 4); | |
2535 | if ((x & OP(~0)) == OP(1) && (y & OP(~0)) == OP(2)) | |
2536 | { | |
2537 | if (((y & OP3(~0)) == OP3(0x3d) /* restore */ | |
2538 | || ((y & OP3(0x28)) == 0 /* arithmetic */ | |
2539 | && (y & RD(~0)) == RD(O7))) | |
2540 | && (y & RS1(~0)) != RS1(O7) | |
2541 | && ((y & F3I(~0)) | |
2542 | || (y & RS2(~0)) != RS2(O7))) | |
2543 | { | |
2544 | bfd_vma reloc; | |
2545 | ||
2546 | reloc = relocation + rel->r_addend - rel->r_offset; | |
2547 | reloc -= (input_section->output_section->vma | |
2548 | + input_section->output_offset); | |
2549 | if (reloc & 3) | |
2550 | goto do_default; | |
2551 | ||
2552 | /* Ensure the branch fits into simm22. */ | |
2553 | if ((reloc & ~(bfd_vma)0x7fffff) | |
2554 | && ((reloc | 0x7fffff) != MINUS_ONE)) | |
2555 | goto do_default; | |
2556 | reloc >>= 2; | |
2557 | ||
2558 | /* Check whether it fits into simm19. */ | |
2559 | if ((reloc & 0x3c0000) == 0 | |
2560 | || (reloc & 0x3c0000) == 0x3c0000) | |
2561 | x = INSN_BPA | (reloc & 0x7ffff); /* ba,pt %xcc */ | |
2562 | else | |
2563 | x = INSN_BA | (reloc & 0x3fffff); /* ba */ | |
2564 | bfd_put_32 (input_bfd, x, contents + rel->r_offset); | |
2565 | r = bfd_reloc_ok; | |
2566 | if (rel->r_offset >= 4 | |
2567 | && (y & (0xffffffff ^ RS1(~0))) | |
2568 | == (INSN_OR | RD(O7) | RS2(G0))) | |
2569 | { | |
2570 | bfd_vma z; | |
2571 | unsigned int reg; | |
2572 | ||
2573 | z = bfd_get_32 (input_bfd, | |
2574 | contents + rel->r_offset - 4); | |
2575 | if ((z & (0xffffffff ^ RD(~0))) | |
2576 | != (INSN_OR | RS1(O7) | RS2(G0))) | |
2577 | break; | |
2578 | ||
2579 | /* The sequence was | |
2580 | or %o7, %g0, %rN | |
2581 | call foo | |
2582 | or %rN, %g0, %o7 | |
2583 | ||
2584 | If call foo was replaced with ba, replace | |
2585 | or %rN, %g0, %o7 with nop. */ | |
2586 | ||
2587 | reg = (y & RS1(~0)) >> 14; | |
2588 | if (reg != ((z & RD(~0)) >> 25) | |
2589 | || reg == G0 || reg == O7) | |
2590 | break; | |
2591 | ||
dc810e39 | 2592 | bfd_put_32 (input_bfd, (bfd_vma) INSN_NOP, |
f7775d95 JJ |
2593 | contents + rel->r_offset + 4); |
2594 | } | |
2595 | break; | |
2596 | } | |
2597 | } | |
2598 | } | |
2599 | /* FALLTHROUGH */ | |
2600 | ||
252b5132 RH |
2601 | default: |
2602 | do_default: | |
2603 | r = _bfd_final_link_relocate (howto, input_bfd, input_section, | |
2604 | contents, rel->r_offset, | |
2605 | relocation, rel->r_addend); | |
2606 | break; | |
2607 | } | |
2608 | ||
2609 | switch (r) | |
2610 | { | |
2611 | case bfd_reloc_ok: | |
2612 | break; | |
2613 | ||
2614 | default: | |
2615 | case bfd_reloc_outofrange: | |
2616 | abort (); | |
2617 | ||
2618 | case bfd_reloc_overflow: | |
2619 | { | |
2620 | const char *name; | |
2621 | ||
2622 | if (h != NULL) | |
2623 | { | |
2624 | if (h->root.type == bfd_link_hash_undefweak | |
2625 | && howto->pc_relative) | |
2626 | { | |
2627 | /* Assume this is a call protected by other code that | |
2628 | detect the symbol is undefined. If this is the case, | |
435b1e90 | 2629 | we can safely ignore the overflow. If not, the |
252b5132 RH |
2630 | program is hosed anyway, and a little warning isn't |
2631 | going to help. */ | |
2632 | break; | |
2633 | } | |
435b1e90 | 2634 | |
252b5132 RH |
2635 | name = h->root.root.string; |
2636 | } | |
2637 | else | |
2638 | { | |
2639 | name = (bfd_elf_string_from_elf_section | |
2640 | (input_bfd, | |
2641 | symtab_hdr->sh_link, | |
2642 | sym->st_name)); | |
2643 | if (name == NULL) | |
2644 | return false; | |
2645 | if (*name == '\0') | |
2646 | name = bfd_section_name (input_bfd, sec); | |
2647 | } | |
2648 | if (! ((*info->callbacks->reloc_overflow) | |
2649 | (info, name, howto->name, (bfd_vma) 0, | |
2650 | input_bfd, input_section, rel->r_offset))) | |
2651 | return false; | |
2652 | } | |
2653 | break; | |
2654 | } | |
2655 | } | |
2656 | ||
2657 | return true; | |
2658 | } | |
2659 | ||
2660 | /* Finish up dynamic symbol handling. We set the contents of various | |
2661 | dynamic sections here. */ | |
2662 | ||
2663 | static boolean | |
2664 | sparc64_elf_finish_dynamic_symbol (output_bfd, info, h, sym) | |
2665 | bfd *output_bfd; | |
2666 | struct bfd_link_info *info; | |
2667 | struct elf_link_hash_entry *h; | |
2668 | Elf_Internal_Sym *sym; | |
2669 | { | |
2670 | bfd *dynobj; | |
2671 | ||
2672 | dynobj = elf_hash_table (info)->dynobj; | |
2673 | ||
2674 | if (h->plt.offset != (bfd_vma) -1) | |
2675 | { | |
2676 | asection *splt; | |
2677 | asection *srela; | |
2678 | Elf_Internal_Rela rela; | |
2679 | ||
435b1e90 | 2680 | /* This symbol has an entry in the PLT. Set it up. */ |
252b5132 RH |
2681 | |
2682 | BFD_ASSERT (h->dynindx != -1); | |
2683 | ||
2684 | splt = bfd_get_section_by_name (dynobj, ".plt"); | |
2685 | srela = bfd_get_section_by_name (dynobj, ".rela.plt"); | |
2686 | BFD_ASSERT (splt != NULL && srela != NULL); | |
2687 | ||
2688 | /* Fill in the entry in the .rela.plt section. */ | |
2689 | ||
2690 | if (h->plt.offset < LARGE_PLT_THRESHOLD) | |
2691 | { | |
2692 | rela.r_offset = sparc64_elf_plt_entry_offset (h->plt.offset); | |
2693 | rela.r_addend = 0; | |
2694 | } | |
2695 | else | |
2696 | { | |
dc810e39 | 2697 | bfd_vma max = splt->_raw_size / PLT_ENTRY_SIZE; |
252b5132 | 2698 | rela.r_offset = sparc64_elf_plt_ptr_offset (h->plt.offset, max); |
a11c78e7 RH |
2699 | rela.r_addend = -(sparc64_elf_plt_entry_offset (h->plt.offset) + 4) |
2700 | -(splt->output_section->vma + splt->output_offset); | |
252b5132 RH |
2701 | } |
2702 | rela.r_offset += (splt->output_section->vma + splt->output_offset); | |
2703 | rela.r_info = ELF64_R_INFO (h->dynindx, R_SPARC_JMP_SLOT); | |
2704 | ||
be040dbb JJ |
2705 | /* Adjust for the first 4 reserved elements in the .plt section |
2706 | when setting the offset in the .rela.plt section. | |
2707 | Sun forgot to read their own ABI and copied elf32-sparc behaviour, | |
2708 | thus .plt[4] has corresponding .rela.plt[0] and so on. */ | |
2709 | ||
252b5132 RH |
2710 | bfd_elf64_swap_reloca_out (output_bfd, &rela, |
2711 | ((Elf64_External_Rela *) srela->contents | |
be040dbb | 2712 | + (h->plt.offset - 4))); |
252b5132 RH |
2713 | |
2714 | if ((h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0) | |
2715 | { | |
2716 | /* Mark the symbol as undefined, rather than as defined in | |
2717 | the .plt section. Leave the value alone. */ | |
2718 | sym->st_shndx = SHN_UNDEF; | |
8701c1bc JJ |
2719 | /* If the symbol is weak, we do need to clear the value. |
2720 | Otherwise, the PLT entry would provide a definition for | |
2721 | the symbol even if the symbol wasn't defined anywhere, | |
2722 | and so the symbol would never be NULL. */ | |
2723 | if ((h->elf_link_hash_flags & ELF_LINK_HASH_REF_REGULAR_NONWEAK) | |
2724 | == 0) | |
2725 | sym->st_value = 0; | |
252b5132 RH |
2726 | } |
2727 | } | |
2728 | ||
2729 | if (h->got.offset != (bfd_vma) -1) | |
2730 | { | |
2731 | asection *sgot; | |
2732 | asection *srela; | |
2733 | Elf_Internal_Rela rela; | |
2734 | ||
2735 | /* This symbol has an entry in the GOT. Set it up. */ | |
2736 | ||
2737 | sgot = bfd_get_section_by_name (dynobj, ".got"); | |
2738 | srela = bfd_get_section_by_name (dynobj, ".rela.got"); | |
2739 | BFD_ASSERT (sgot != NULL && srela != NULL); | |
2740 | ||
2741 | rela.r_offset = (sgot->output_section->vma | |
2742 | + sgot->output_offset | |
dc810e39 | 2743 | + (h->got.offset &~ (bfd_vma) 1)); |
252b5132 RH |
2744 | |
2745 | /* If this is a -Bsymbolic link, and the symbol is defined | |
2746 | locally, we just want to emit a RELATIVE reloc. Likewise if | |
2747 | the symbol was forced to be local because of a version file. | |
2748 | The entry in the global offset table will already have been | |
2749 | initialized in the relocate_section function. */ | |
2750 | if (info->shared | |
2751 | && (info->symbolic || h->dynindx == -1) | |
2752 | && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR)) | |
2753 | { | |
2754 | asection *sec = h->root.u.def.section; | |
2755 | rela.r_info = ELF64_R_INFO (0, R_SPARC_RELATIVE); | |
2756 | rela.r_addend = (h->root.u.def.value | |
2757 | + sec->output_section->vma | |
2758 | + sec->output_offset); | |
2759 | } | |
2760 | else | |
2761 | { | |
2762 | bfd_put_64 (output_bfd, (bfd_vma) 0, sgot->contents + h->got.offset); | |
2763 | rela.r_info = ELF64_R_INFO (h->dynindx, R_SPARC_GLOB_DAT); | |
2764 | rela.r_addend = 0; | |
2765 | } | |
2766 | ||
2767 | bfd_elf64_swap_reloca_out (output_bfd, &rela, | |
2768 | ((Elf64_External_Rela *) srela->contents | |
2769 | + srela->reloc_count)); | |
2770 | ++srela->reloc_count; | |
2771 | } | |
2772 | ||
2773 | if ((h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_COPY) != 0) | |
2774 | { | |
2775 | asection *s; | |
2776 | Elf_Internal_Rela rela; | |
2777 | ||
2778 | /* This symbols needs a copy reloc. Set it up. */ | |
2779 | ||
2780 | BFD_ASSERT (h->dynindx != -1); | |
2781 | ||
2782 | s = bfd_get_section_by_name (h->root.u.def.section->owner, | |
2783 | ".rela.bss"); | |
2784 | BFD_ASSERT (s != NULL); | |
2785 | ||
2786 | rela.r_offset = (h->root.u.def.value | |
2787 | + h->root.u.def.section->output_section->vma | |
2788 | + h->root.u.def.section->output_offset); | |
2789 | rela.r_info = ELF64_R_INFO (h->dynindx, R_SPARC_COPY); | |
2790 | rela.r_addend = 0; | |
2791 | bfd_elf64_swap_reloca_out (output_bfd, &rela, | |
2792 | ((Elf64_External_Rela *) s->contents | |
2793 | + s->reloc_count)); | |
2794 | ++s->reloc_count; | |
2795 | } | |
2796 | ||
2797 | /* Mark some specially defined symbols as absolute. */ | |
2798 | if (strcmp (h->root.root.string, "_DYNAMIC") == 0 | |
2799 | || strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0 | |
2800 | || strcmp (h->root.root.string, "_PROCEDURE_LINKAGE_TABLE_") == 0) | |
2801 | sym->st_shndx = SHN_ABS; | |
2802 | ||
2803 | return true; | |
2804 | } | |
2805 | ||
2806 | /* Finish up the dynamic sections. */ | |
2807 | ||
2808 | static boolean | |
2809 | sparc64_elf_finish_dynamic_sections (output_bfd, info) | |
2810 | bfd *output_bfd; | |
2811 | struct bfd_link_info *info; | |
2812 | { | |
2813 | bfd *dynobj; | |
587ff49e | 2814 | int stt_regidx = -1; |
252b5132 RH |
2815 | asection *sdyn; |
2816 | asection *sgot; | |
2817 | ||
2818 | dynobj = elf_hash_table (info)->dynobj; | |
2819 | ||
2820 | sdyn = bfd_get_section_by_name (dynobj, ".dynamic"); | |
2821 | ||
2822 | if (elf_hash_table (info)->dynamic_sections_created) | |
2823 | { | |
2824 | asection *splt; | |
2825 | Elf64_External_Dyn *dyncon, *dynconend; | |
2826 | ||
2827 | splt = bfd_get_section_by_name (dynobj, ".plt"); | |
2828 | BFD_ASSERT (splt != NULL && sdyn != NULL); | |
2829 | ||
2830 | dyncon = (Elf64_External_Dyn *) sdyn->contents; | |
2831 | dynconend = (Elf64_External_Dyn *) (sdyn->contents + sdyn->_raw_size); | |
2832 | for (; dyncon < dynconend; dyncon++) | |
2833 | { | |
2834 | Elf_Internal_Dyn dyn; | |
2835 | const char *name; | |
2836 | boolean size; | |
2837 | ||
2838 | bfd_elf64_swap_dyn_in (dynobj, dyncon, &dyn); | |
2839 | ||
2840 | switch (dyn.d_tag) | |
2841 | { | |
2842 | case DT_PLTGOT: name = ".plt"; size = false; break; | |
2843 | case DT_PLTRELSZ: name = ".rela.plt"; size = true; break; | |
2844 | case DT_JMPREL: name = ".rela.plt"; size = false; break; | |
587ff49e RH |
2845 | case DT_SPARC_REGISTER: |
2846 | if (stt_regidx == -1) | |
2847 | { | |
2848 | stt_regidx = | |
2849 | _bfd_elf_link_lookup_local_dynindx (info, output_bfd, -1); | |
2850 | if (stt_regidx == -1) | |
2851 | return false; | |
2852 | } | |
2853 | dyn.d_un.d_val = stt_regidx++; | |
2854 | bfd_elf64_swap_dyn_out (output_bfd, &dyn, dyncon); | |
2855 | /* fallthrough */ | |
252b5132 RH |
2856 | default: name = NULL; size = false; break; |
2857 | } | |
2858 | ||
2859 | if (name != NULL) | |
2860 | { | |
2861 | asection *s; | |
2862 | ||
2863 | s = bfd_get_section_by_name (output_bfd, name); | |
2864 | if (s == NULL) | |
2865 | dyn.d_un.d_val = 0; | |
2866 | else | |
2867 | { | |
2868 | if (! size) | |
2869 | dyn.d_un.d_ptr = s->vma; | |
2870 | else | |
2871 | { | |
2872 | if (s->_cooked_size != 0) | |
2873 | dyn.d_un.d_val = s->_cooked_size; | |
2874 | else | |
2875 | dyn.d_un.d_val = s->_raw_size; | |
2876 | } | |
2877 | } | |
2878 | bfd_elf64_swap_dyn_out (output_bfd, &dyn, dyncon); | |
2879 | } | |
2880 | } | |
2881 | ||
2882 | /* Initialize the contents of the .plt section. */ | |
2883 | if (splt->_raw_size > 0) | |
2884 | { | |
dc810e39 AM |
2885 | sparc64_elf_build_plt (output_bfd, splt->contents, |
2886 | (int) (splt->_raw_size / PLT_ENTRY_SIZE)); | |
252b5132 RH |
2887 | } |
2888 | ||
2889 | elf_section_data (splt->output_section)->this_hdr.sh_entsize = | |
2890 | PLT_ENTRY_SIZE; | |
2891 | } | |
2892 | ||
2893 | /* Set the first entry in the global offset table to the address of | |
2894 | the dynamic section. */ | |
2895 | sgot = bfd_get_section_by_name (dynobj, ".got"); | |
2896 | BFD_ASSERT (sgot != NULL); | |
2897 | if (sgot->_raw_size > 0) | |
2898 | { | |
2899 | if (sdyn == NULL) | |
2900 | bfd_put_64 (output_bfd, (bfd_vma) 0, sgot->contents); | |
2901 | else | |
2902 | bfd_put_64 (output_bfd, | |
2903 | sdyn->output_section->vma + sdyn->output_offset, | |
2904 | sgot->contents); | |
2905 | } | |
2906 | ||
2907 | elf_section_data (sgot->output_section)->this_hdr.sh_entsize = 8; | |
2908 | ||
252b5132 RH |
2909 | return true; |
2910 | } | |
db6751f2 JJ |
2911 | |
2912 | static enum elf_reloc_type_class | |
2913 | sparc64_elf_reloc_type_class (type) | |
2914 | int type; | |
2915 | { | |
2916 | switch (type) | |
2917 | { | |
2918 | case R_SPARC_RELATIVE: | |
2919 | return reloc_class_relative; | |
2920 | case R_SPARC_JMP_SLOT: | |
2921 | return reloc_class_plt; | |
2922 | case R_SPARC_COPY: | |
2923 | return reloc_class_copy; | |
2924 | default: | |
2925 | return reloc_class_normal; | |
2926 | } | |
2927 | } | |
252b5132 | 2928 | \f |
435b1e90 | 2929 | /* Functions for dealing with the e_flags field. */ |
252b5132 | 2930 | |
069f40e5 JJ |
2931 | /* Copy backend specific data from one object module to another */ |
2932 | static boolean | |
2933 | sparc64_elf_copy_private_bfd_data (ibfd, obfd) | |
2934 | bfd *ibfd, *obfd; | |
2935 | { | |
2936 | if ( bfd_get_flavour (ibfd) != bfd_target_elf_flavour | |
2937 | || bfd_get_flavour (obfd) != bfd_target_elf_flavour) | |
2938 | return true; | |
2939 | ||
2940 | BFD_ASSERT (!elf_flags_init (obfd) | |
2941 | || (elf_elfheader (obfd)->e_flags | |
2942 | == elf_elfheader (ibfd)->e_flags)); | |
2943 | ||
2944 | elf_elfheader (obfd)->e_flags = elf_elfheader (ibfd)->e_flags; | |
2945 | elf_flags_init (obfd) = true; | |
2946 | return true; | |
2947 | } | |
2948 | ||
252b5132 RH |
2949 | /* Merge backend specific data from an object file to the output |
2950 | object file when linking. */ | |
2951 | ||
2952 | static boolean | |
2953 | sparc64_elf_merge_private_bfd_data (ibfd, obfd) | |
2954 | bfd *ibfd; | |
2955 | bfd *obfd; | |
2956 | { | |
2957 | boolean error; | |
2958 | flagword new_flags, old_flags; | |
2959 | int new_mm, old_mm; | |
2960 | ||
2961 | if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour | |
2962 | || bfd_get_flavour (obfd) != bfd_target_elf_flavour) | |
2963 | return true; | |
2964 | ||
2965 | new_flags = elf_elfheader (ibfd)->e_flags; | |
2966 | old_flags = elf_elfheader (obfd)->e_flags; | |
2967 | ||
2968 | if (!elf_flags_init (obfd)) /* First call, no flags set */ | |
2969 | { | |
2970 | elf_flags_init (obfd) = true; | |
2971 | elf_elfheader (obfd)->e_flags = new_flags; | |
2972 | } | |
435b1e90 | 2973 | |
252b5132 RH |
2974 | else if (new_flags == old_flags) /* Compatible flags are ok */ |
2975 | ; | |
435b1e90 | 2976 | |
252b5132 RH |
2977 | else /* Incompatible flags */ |
2978 | { | |
2979 | error = false; | |
19f7b010 JJ |
2980 | |
2981 | #define EF_SPARC_ISA_EXTENSIONS \ | |
2982 | (EF_SPARC_SUN_US1 | EF_SPARC_SUN_US3 | EF_SPARC_HAL_R1) | |
2983 | ||
37fb6db1 ILT |
2984 | if ((ibfd->flags & DYNAMIC) != 0) |
2985 | { | |
2986 | /* We don't want dynamic objects memory ordering and | |
2987 | architecture to have any role. That's what dynamic linker | |
2988 | should do. */ | |
19f7b010 | 2989 | new_flags &= ~(EF_SPARCV9_MM | EF_SPARC_ISA_EXTENSIONS); |
6c08d697 | 2990 | new_flags |= (old_flags |
19f7b010 | 2991 | & (EF_SPARCV9_MM | EF_SPARC_ISA_EXTENSIONS)); |
37fb6db1 ILT |
2992 | } |
2993 | else | |
2994 | { | |
2995 | /* Choose the highest architecture requirements. */ | |
19f7b010 JJ |
2996 | old_flags |= (new_flags & EF_SPARC_ISA_EXTENSIONS); |
2997 | new_flags |= (old_flags & EF_SPARC_ISA_EXTENSIONS); | |
2998 | if ((old_flags & (EF_SPARC_SUN_US1 | EF_SPARC_SUN_US3)) | |
2999 | && (old_flags & EF_SPARC_HAL_R1)) | |
37fb6db1 ILT |
3000 | { |
3001 | error = true; | |
3002 | (*_bfd_error_handler) | |
3003 | (_("%s: linking UltraSPARC specific with HAL specific code"), | |
3004 | bfd_get_filename (ibfd)); | |
3005 | } | |
3006 | /* Choose the most restrictive memory ordering. */ | |
3007 | old_mm = (old_flags & EF_SPARCV9_MM); | |
3008 | new_mm = (new_flags & EF_SPARCV9_MM); | |
3009 | old_flags &= ~EF_SPARCV9_MM; | |
3010 | new_flags &= ~EF_SPARCV9_MM; | |
3011 | if (new_mm < old_mm) | |
3012 | old_mm = new_mm; | |
3013 | old_flags |= old_mm; | |
3014 | new_flags |= old_mm; | |
3015 | } | |
252b5132 RH |
3016 | |
3017 | /* Warn about any other mismatches */ | |
3018 | if (new_flags != old_flags) | |
3019 | { | |
3020 | error = true; | |
3021 | (*_bfd_error_handler) | |
3022 | (_("%s: uses different e_flags (0x%lx) fields than previous modules (0x%lx)"), | |
3023 | bfd_get_filename (ibfd), (long)new_flags, (long)old_flags); | |
3024 | } | |
3025 | ||
3026 | elf_elfheader (obfd)->e_flags = old_flags; | |
3027 | ||
3028 | if (error) | |
3029 | { | |
3030 | bfd_set_error (bfd_error_bad_value); | |
3031 | return false; | |
3032 | } | |
3033 | } | |
3034 | return true; | |
3035 | } | |
587ff49e RH |
3036 | \f |
3037 | /* Print a STT_REGISTER symbol to file FILE. */ | |
252b5132 | 3038 | |
587ff49e RH |
3039 | static const char * |
3040 | sparc64_elf_print_symbol_all (abfd, filep, symbol) | |
6c08d697 | 3041 | bfd *abfd ATTRIBUTE_UNUSED; |
587ff49e RH |
3042 | PTR filep; |
3043 | asymbol *symbol; | |
3044 | { | |
3045 | FILE *file = (FILE *) filep; | |
3046 | int reg, type; | |
435b1e90 | 3047 | |
587ff49e RH |
3048 | if (ELF_ST_TYPE (((elf_symbol_type *) symbol)->internal_elf_sym.st_info) |
3049 | != STT_REGISTER) | |
3050 | return NULL; | |
3051 | ||
3052 | reg = ((elf_symbol_type *) symbol)->internal_elf_sym.st_value; | |
3053 | type = symbol->flags; | |
3054 | fprintf (file, "REG_%c%c%11s%c%c R", "GOLI" [reg / 8], '0' + (reg & 7), "", | |
3055 | ((type & BSF_LOCAL) | |
3056 | ? (type & BSF_GLOBAL) ? '!' : 'l' | |
99c79b2e AJ |
3057 | : (type & BSF_GLOBAL) ? 'g' : ' '), |
3058 | (type & BSF_WEAK) ? 'w' : ' '); | |
587ff49e RH |
3059 | if (symbol->name == NULL || symbol->name [0] == '\0') |
3060 | return "#scratch"; | |
3061 | else | |
3062 | return symbol->name; | |
3063 | } | |
252b5132 RH |
3064 | \f |
3065 | /* Set the right machine number for a SPARC64 ELF file. */ | |
3066 | ||
3067 | static boolean | |
3068 | sparc64_elf_object_p (abfd) | |
3069 | bfd *abfd; | |
3070 | { | |
3071 | unsigned long mach = bfd_mach_sparc_v9; | |
19f7b010 JJ |
3072 | |
3073 | if (elf_elfheader (abfd)->e_flags & EF_SPARC_SUN_US3) | |
3074 | mach = bfd_mach_sparc_v9b; | |
3075 | else if (elf_elfheader (abfd)->e_flags & EF_SPARC_SUN_US1) | |
252b5132 RH |
3076 | mach = bfd_mach_sparc_v9a; |
3077 | return bfd_default_set_arch_mach (abfd, bfd_arch_sparc, mach); | |
3078 | } | |
3079 | ||
f65054f7 RH |
3080 | /* Relocations in the 64 bit SPARC ELF ABI are more complex than in |
3081 | standard ELF, because R_SPARC_OLO10 has secondary addend in | |
3082 | ELF64_R_TYPE_DATA field. This structure is used to redirect the | |
3083 | relocation handling routines. */ | |
3084 | ||
3085 | const struct elf_size_info sparc64_elf_size_info = | |
3086 | { | |
3087 | sizeof (Elf64_External_Ehdr), | |
3088 | sizeof (Elf64_External_Phdr), | |
3089 | sizeof (Elf64_External_Shdr), | |
3090 | sizeof (Elf64_External_Rel), | |
3091 | sizeof (Elf64_External_Rela), | |
3092 | sizeof (Elf64_External_Sym), | |
3093 | sizeof (Elf64_External_Dyn), | |
3094 | sizeof (Elf_External_Note), | |
a11c78e7 | 3095 | 4, /* hash-table entry size */ |
f65054f7 RH |
3096 | /* internal relocations per external relocations. |
3097 | For link purposes we use just 1 internal per | |
3098 | 1 external, for assembly and slurp symbol table | |
435b1e90 | 3099 | we use 2. */ |
f65054f7 RH |
3100 | 1, |
3101 | 64, /* arch_size */ | |
3102 | 8, /* file_align */ | |
3103 | ELFCLASS64, | |
3104 | EV_CURRENT, | |
3105 | bfd_elf64_write_out_phdrs, | |
3106 | bfd_elf64_write_shdrs_and_ehdr, | |
3107 | sparc64_elf_write_relocs, | |
3108 | bfd_elf64_swap_symbol_out, | |
3109 | sparc64_elf_slurp_reloc_table, | |
3110 | bfd_elf64_slurp_symbol_table, | |
3111 | bfd_elf64_swap_dyn_in, | |
3112 | bfd_elf64_swap_dyn_out, | |
3113 | NULL, | |
3114 | NULL, | |
3115 | NULL, | |
3116 | NULL | |
3117 | }; | |
3118 | ||
252b5132 RH |
3119 | #define TARGET_BIG_SYM bfd_elf64_sparc_vec |
3120 | #define TARGET_BIG_NAME "elf64-sparc" | |
3121 | #define ELF_ARCH bfd_arch_sparc | |
3122 | #define ELF_MAXPAGESIZE 0x100000 | |
3123 | ||
3124 | /* This is the official ABI value. */ | |
3125 | #define ELF_MACHINE_CODE EM_SPARCV9 | |
3126 | ||
3127 | /* This is the value that we used before the ABI was released. */ | |
3128 | #define ELF_MACHINE_ALT1 EM_OLD_SPARCV9 | |
3129 | ||
587ff49e RH |
3130 | #define bfd_elf64_bfd_link_hash_table_create \ |
3131 | sparc64_elf_bfd_link_hash_table_create | |
435b1e90 | 3132 | |
252b5132 RH |
3133 | #define elf_info_to_howto \ |
3134 | sparc64_elf_info_to_howto | |
f65054f7 RH |
3135 | #define bfd_elf64_get_reloc_upper_bound \ |
3136 | sparc64_elf_get_reloc_upper_bound | |
3137 | #define bfd_elf64_get_dynamic_reloc_upper_bound \ | |
3138 | sparc64_elf_get_dynamic_reloc_upper_bound | |
3139 | #define bfd_elf64_canonicalize_dynamic_reloc \ | |
3140 | sparc64_elf_canonicalize_dynamic_reloc | |
252b5132 RH |
3141 | #define bfd_elf64_bfd_reloc_type_lookup \ |
3142 | sparc64_elf_reloc_type_lookup | |
f7775d95 JJ |
3143 | #define bfd_elf64_bfd_relax_section \ |
3144 | sparc64_elf_relax_section | |
252b5132 RH |
3145 | |
3146 | #define elf_backend_create_dynamic_sections \ | |
3147 | _bfd_elf_create_dynamic_sections | |
587ff49e RH |
3148 | #define elf_backend_add_symbol_hook \ |
3149 | sparc64_elf_add_symbol_hook | |
3150 | #define elf_backend_get_symbol_type \ | |
3151 | sparc64_elf_get_symbol_type | |
3152 | #define elf_backend_symbol_processing \ | |
3153 | sparc64_elf_symbol_processing | |
252b5132 RH |
3154 | #define elf_backend_check_relocs \ |
3155 | sparc64_elf_check_relocs | |
3156 | #define elf_backend_adjust_dynamic_symbol \ | |
3157 | sparc64_elf_adjust_dynamic_symbol | |
3158 | #define elf_backend_size_dynamic_sections \ | |
3159 | sparc64_elf_size_dynamic_sections | |
3160 | #define elf_backend_relocate_section \ | |
3161 | sparc64_elf_relocate_section | |
3162 | #define elf_backend_finish_dynamic_symbol \ | |
3163 | sparc64_elf_finish_dynamic_symbol | |
3164 | #define elf_backend_finish_dynamic_sections \ | |
3165 | sparc64_elf_finish_dynamic_sections | |
587ff49e RH |
3166 | #define elf_backend_print_symbol_all \ |
3167 | sparc64_elf_print_symbol_all | |
3168 | #define elf_backend_output_arch_syms \ | |
3169 | sparc64_elf_output_arch_syms | |
069f40e5 JJ |
3170 | #define bfd_elf64_bfd_copy_private_bfd_data \ |
3171 | sparc64_elf_copy_private_bfd_data | |
252b5132 RH |
3172 | #define bfd_elf64_bfd_merge_private_bfd_data \ |
3173 | sparc64_elf_merge_private_bfd_data | |
3174 | ||
f65054f7 RH |
3175 | #define elf_backend_size_info \ |
3176 | sparc64_elf_size_info | |
252b5132 RH |
3177 | #define elf_backend_object_p \ |
3178 | sparc64_elf_object_p | |
db6751f2 JJ |
3179 | #define elf_backend_reloc_type_class \ |
3180 | sparc64_elf_reloc_type_class | |
252b5132 RH |
3181 | |
3182 | #define elf_backend_want_got_plt 0 | |
3183 | #define elf_backend_plt_readonly 0 | |
3184 | #define elf_backend_want_plt_sym 1 | |
3185 | ||
3186 | /* Section 5.2.4 of the ABI specifies a 256-byte boundary for the table. */ | |
3187 | #define elf_backend_plt_alignment 8 | |
3188 | ||
3189 | #define elf_backend_got_header_size 8 | |
3190 | #define elf_backend_plt_header_size PLT_HEADER_SIZE | |
3191 | ||
3192 | #include "elf64-target.h" |