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252b5132 | 1 | /* SPARC-specific support for 64-bit ELF |
f0abc2a1 | 2 | Copyright 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, |
5a580b3a | 3 | 2003, 2004 Free Software Foundation, Inc. |
252b5132 | 4 | |
ae9a127f | 5 | This file is part of BFD, the Binary File Descriptor library. |
252b5132 | 6 | |
ae9a127f NC |
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. | |
252b5132 | 11 | |
ae9a127f NC |
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. | |
252b5132 | 16 | |
ae9a127f NC |
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. */ | |
252b5132 RH |
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 | 38 | PARAMS ((bfd *)); |
a51a7930 EB |
39 | static bfd_boolean create_got_section |
40 | PARAMS ((bfd *, struct bfd_link_info *)); | |
41 | static bfd_boolean sparc64_elf_create_dynamic_sections | |
42 | PARAMS ((bfd *, struct bfd_link_info *)); | |
99c79b2e AJ |
43 | static bfd_reloc_status_type init_insn_reloc |
44 | PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, | |
45 | bfd *, bfd_vma *, bfd_vma *)); | |
252b5132 RH |
46 | static reloc_howto_type *sparc64_elf_reloc_type_lookup |
47 | PARAMS ((bfd *, bfd_reloc_code_real_type)); | |
48 | static void sparc64_elf_info_to_howto | |
49 | PARAMS ((bfd *, arelent *, Elf_Internal_Rela *)); | |
50 | ||
51 | static void sparc64_elf_build_plt | |
99c79b2e | 52 | PARAMS ((bfd *, unsigned char *, int)); |
252b5132 | 53 | static bfd_vma sparc64_elf_plt_entry_offset |
dc810e39 | 54 | PARAMS ((bfd_vma)); |
252b5132 | 55 | static bfd_vma sparc64_elf_plt_ptr_offset |
dc810e39 | 56 | PARAMS ((bfd_vma, bfd_vma)); |
252b5132 | 57 | |
b34976b6 | 58 | static bfd_boolean sparc64_elf_check_relocs |
99c79b2e AJ |
59 | PARAMS ((bfd *, struct bfd_link_info *, asection *sec, |
60 | const Elf_Internal_Rela *)); | |
b34976b6 | 61 | static bfd_boolean sparc64_elf_adjust_dynamic_symbol |
99c79b2e | 62 | PARAMS ((struct bfd_link_info *, struct elf_link_hash_entry *)); |
151e5294 EB |
63 | static bfd_boolean sparc64_elf_omit_section_dynsym |
64 | PARAMS ((bfd *, struct bfd_link_info *, asection *)); | |
b34976b6 | 65 | static bfd_boolean sparc64_elf_size_dynamic_sections |
99c79b2e | 66 | PARAMS ((bfd *, struct bfd_link_info *)); |
587ff49e RH |
67 | static int sparc64_elf_get_symbol_type |
68 | PARAMS (( Elf_Internal_Sym *, int)); | |
b34976b6 | 69 | static bfd_boolean sparc64_elf_add_symbol_hook |
555cd476 | 70 | PARAMS ((bfd *, struct bfd_link_info *, Elf_Internal_Sym *, |
99c79b2e | 71 | const char **, flagword *, asection **, bfd_vma *)); |
b34976b6 | 72 | static bfd_boolean sparc64_elf_output_arch_syms |
5d964dfa | 73 | PARAMS ((bfd *, struct bfd_link_info *, PTR, |
754021d0 AM |
74 | bfd_boolean (*) (PTR, const char *, Elf_Internal_Sym *, |
75 | asection *, struct elf_link_hash_entry *))); | |
587ff49e RH |
76 | static void sparc64_elf_symbol_processing |
77 | PARAMS ((bfd *, asymbol *)); | |
252b5132 | 78 | |
b34976b6 | 79 | static bfd_boolean sparc64_elf_merge_private_bfd_data |
252b5132 RH |
80 | PARAMS ((bfd *, bfd *)); |
81 | ||
b34976b6 | 82 | static bfd_boolean sparc64_elf_fake_sections |
947216bf | 83 | PARAMS ((bfd *, Elf_Internal_Shdr *, asection *)); |
0594c12d | 84 | |
99c79b2e AJ |
85 | static const char *sparc64_elf_print_symbol_all |
86 | PARAMS ((bfd *, PTR, asymbol *)); | |
f0abc2a1 AM |
87 | static bfd_boolean sparc64_elf_new_section_hook |
88 | PARAMS ((bfd *, asection *)); | |
b34976b6 AM |
89 | static bfd_boolean sparc64_elf_relax_section |
90 | PARAMS ((bfd *, asection *, struct bfd_link_info *, bfd_boolean *)); | |
91 | static bfd_boolean sparc64_elf_relocate_section | |
252b5132 RH |
92 | PARAMS ((bfd *, struct bfd_link_info *, bfd *, asection *, bfd_byte *, |
93 | Elf_Internal_Rela *, Elf_Internal_Sym *, asection **)); | |
b34976b6 | 94 | static bfd_boolean sparc64_elf_finish_dynamic_symbol |
99c79b2e AJ |
95 | PARAMS ((bfd *, struct bfd_link_info *, struct elf_link_hash_entry *, |
96 | Elf_Internal_Sym *)); | |
b34976b6 | 97 | static bfd_boolean sparc64_elf_finish_dynamic_sections |
99c79b2e | 98 | PARAMS ((bfd *, struct bfd_link_info *)); |
b34976b6 | 99 | static bfd_boolean sparc64_elf_object_p PARAMS ((bfd *)); |
f65054f7 RH |
100 | static long sparc64_elf_get_reloc_upper_bound PARAMS ((bfd *, asection *)); |
101 | static long sparc64_elf_get_dynamic_reloc_upper_bound PARAMS ((bfd *)); | |
b34976b6 AM |
102 | static bfd_boolean sparc64_elf_slurp_one_reloc_table |
103 | PARAMS ((bfd *, asection *, Elf_Internal_Shdr *, asymbol **, bfd_boolean)); | |
104 | static bfd_boolean sparc64_elf_slurp_reloc_table | |
105 | PARAMS ((bfd *, asection *, asymbol **, bfd_boolean)); | |
3e1d7f19 JJ |
106 | static long sparc64_elf_canonicalize_reloc |
107 | PARAMS ((bfd *, asection *, arelent **, asymbol **)); | |
f65054f7 RH |
108 | static long sparc64_elf_canonicalize_dynamic_reloc |
109 | PARAMS ((bfd *, arelent **, asymbol **)); | |
110 | static void sparc64_elf_write_relocs PARAMS ((bfd *, asection *, PTR)); | |
f51e552e AM |
111 | static enum elf_reloc_type_class sparc64_elf_reloc_type_class |
112 | PARAMS ((const Elf_Internal_Rela *)); | |
252b5132 RH |
113 | \f |
114 | /* The relocation "howto" table. */ | |
115 | ||
116 | static bfd_reloc_status_type sparc_elf_notsup_reloc | |
117 | PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **)); | |
118 | static bfd_reloc_status_type sparc_elf_wdisp16_reloc | |
119 | PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **)); | |
120 | static bfd_reloc_status_type sparc_elf_hix22_reloc | |
121 | PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **)); | |
122 | static bfd_reloc_status_type sparc_elf_lox10_reloc | |
123 | PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **)); | |
124 | ||
125 | static reloc_howto_type sparc64_elf_howto_table[] = | |
126 | { | |
b34976b6 AM |
127 | HOWTO(R_SPARC_NONE, 0,0, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_NONE", FALSE,0,0x00000000,TRUE), |
128 | HOWTO(R_SPARC_8, 0,0, 8,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_8", FALSE,0,0x000000ff,TRUE), | |
129 | HOWTO(R_SPARC_16, 0,1,16,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_16", FALSE,0,0x0000ffff,TRUE), | |
130 | HOWTO(R_SPARC_32, 0,2,32,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_32", FALSE,0,0xffffffff,TRUE), | |
131 | HOWTO(R_SPARC_DISP8, 0,0, 8,TRUE, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_DISP8", FALSE,0,0x000000ff,TRUE), | |
132 | HOWTO(R_SPARC_DISP16, 0,1,16,TRUE, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_DISP16", FALSE,0,0x0000ffff,TRUE), | |
133 | HOWTO(R_SPARC_DISP32, 0,2,32,TRUE, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_DISP32", FALSE,0,0xffffffff,TRUE), | |
134 | HOWTO(R_SPARC_WDISP30, 2,2,30,TRUE, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_WDISP30", FALSE,0,0x3fffffff,TRUE), | |
135 | HOWTO(R_SPARC_WDISP22, 2,2,22,TRUE, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_WDISP22", FALSE,0,0x003fffff,TRUE), | |
136 | HOWTO(R_SPARC_HI22, 10,2,22,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_HI22", FALSE,0,0x003fffff,TRUE), | |
137 | HOWTO(R_SPARC_22, 0,2,22,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_22", FALSE,0,0x003fffff,TRUE), | |
138 | HOWTO(R_SPARC_13, 0,2,13,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_13", FALSE,0,0x00001fff,TRUE), | |
139 | HOWTO(R_SPARC_LO10, 0,2,10,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_LO10", FALSE,0,0x000003ff,TRUE), | |
140 | HOWTO(R_SPARC_GOT10, 0,2,10,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_GOT10", FALSE,0,0x000003ff,TRUE), | |
141 | HOWTO(R_SPARC_GOT13, 0,2,13,FALSE,0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_GOT13", FALSE,0,0x00001fff,TRUE), | |
142 | HOWTO(R_SPARC_GOT22, 10,2,22,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_GOT22", FALSE,0,0x003fffff,TRUE), | |
143 | HOWTO(R_SPARC_PC10, 0,2,10,TRUE, 0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_PC10", FALSE,0,0x000003ff,TRUE), | |
144 | HOWTO(R_SPARC_PC22, 10,2,22,TRUE, 0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_PC22", FALSE,0,0x003fffff,TRUE), | |
145 | HOWTO(R_SPARC_WPLT30, 2,2,30,TRUE, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_WPLT30", FALSE,0,0x3fffffff,TRUE), | |
146 | HOWTO(R_SPARC_COPY, 0,0,00,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_COPY", FALSE,0,0x00000000,TRUE), | |
147 | 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), | |
148 | 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), | |
149 | HOWTO(R_SPARC_RELATIVE, 0,0,00,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_RELATIVE",FALSE,0,0x00000000,TRUE), | |
150 | HOWTO(R_SPARC_UA32, 0,2,32,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_UA32", FALSE,0,0xffffffff,TRUE), | |
252b5132 | 151 | #ifndef SPARC64_OLD_RELOCS |
b34976b6 | 152 | HOWTO(R_SPARC_PLT32, 0,2,32,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_PLT32", FALSE,0,0xffffffff,TRUE), |
252b5132 | 153 | /* These aren't implemented yet. */ |
b34976b6 AM |
154 | HOWTO(R_SPARC_HIPLT22, 0,0,00,FALSE,0,complain_overflow_dont, sparc_elf_notsup_reloc, "R_SPARC_HIPLT22", FALSE,0,0x00000000,TRUE), |
155 | HOWTO(R_SPARC_LOPLT10, 0,0,00,FALSE,0,complain_overflow_dont, sparc_elf_notsup_reloc, "R_SPARC_LOPLT10", FALSE,0,0x00000000,TRUE), | |
156 | HOWTO(R_SPARC_PCPLT32, 0,0,00,FALSE,0,complain_overflow_dont, sparc_elf_notsup_reloc, "R_SPARC_PCPLT32", FALSE,0,0x00000000,TRUE), | |
157 | HOWTO(R_SPARC_PCPLT22, 0,0,00,FALSE,0,complain_overflow_dont, sparc_elf_notsup_reloc, "R_SPARC_PCPLT22", FALSE,0,0x00000000,TRUE), | |
158 | HOWTO(R_SPARC_PCPLT10, 0,0,00,FALSE,0,complain_overflow_dont, sparc_elf_notsup_reloc, "R_SPARC_PCPLT10", FALSE,0,0x00000000,TRUE), | |
252b5132 | 159 | #endif |
b34976b6 AM |
160 | HOWTO(R_SPARC_10, 0,2,10,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_10", FALSE,0,0x000003ff,TRUE), |
161 | HOWTO(R_SPARC_11, 0,2,11,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_11", FALSE,0,0x000007ff,TRUE), | |
162 | HOWTO(R_SPARC_64, 0,4,64,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_64", FALSE,0,MINUS_ONE, TRUE), | |
163 | HOWTO(R_SPARC_OLO10, 0,2,13,FALSE,0,complain_overflow_signed, sparc_elf_notsup_reloc, "R_SPARC_OLO10", FALSE,0,0x00001fff,TRUE), | |
164 | HOWTO(R_SPARC_HH22, 42,2,22,FALSE,0,complain_overflow_unsigned,bfd_elf_generic_reloc, "R_SPARC_HH22", FALSE,0,0x003fffff,TRUE), | |
165 | HOWTO(R_SPARC_HM10, 32,2,10,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_HM10", FALSE,0,0x000003ff,TRUE), | |
166 | HOWTO(R_SPARC_LM22, 10,2,22,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_LM22", FALSE,0,0x003fffff,TRUE), | |
167 | 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), | |
168 | 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), | |
169 | 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), | |
170 | HOWTO(R_SPARC_WDISP16, 2,2,16,TRUE, 0,complain_overflow_signed, sparc_elf_wdisp16_reloc,"R_SPARC_WDISP16", FALSE,0,0x00000000,TRUE), | |
171 | HOWTO(R_SPARC_WDISP19, 2,2,19,TRUE, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_WDISP19", FALSE,0,0x0007ffff,TRUE), | |
172 | 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), | |
173 | HOWTO(R_SPARC_7, 0,2, 7,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_7", FALSE,0,0x0000007f,TRUE), | |
174 | HOWTO(R_SPARC_5, 0,2, 5,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_5", FALSE,0,0x0000001f,TRUE), | |
175 | HOWTO(R_SPARC_6, 0,2, 6,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_6", FALSE,0,0x0000003f,TRUE), | |
176 | HOWTO(R_SPARC_DISP64, 0,4,64,TRUE, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_DISP64", FALSE,0,MINUS_ONE, TRUE), | |
177 | HOWTO(R_SPARC_PLT64, 0,4,64,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_PLT64", FALSE,0,MINUS_ONE, TRUE), | |
178 | HOWTO(R_SPARC_HIX22, 0,4, 0,FALSE,0,complain_overflow_bitfield,sparc_elf_hix22_reloc, "R_SPARC_HIX22", FALSE,0,MINUS_ONE, FALSE), | |
179 | HOWTO(R_SPARC_LOX10, 0,4, 0,FALSE,0,complain_overflow_dont, sparc_elf_lox10_reloc, "R_SPARC_LOX10", FALSE,0,MINUS_ONE, FALSE), | |
180 | HOWTO(R_SPARC_H44, 22,2,22,FALSE,0,complain_overflow_unsigned,bfd_elf_generic_reloc, "R_SPARC_H44", FALSE,0,0x003fffff,FALSE), | |
181 | HOWTO(R_SPARC_M44, 12,2,10,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_M44", FALSE,0,0x000003ff,FALSE), | |
182 | HOWTO(R_SPARC_L44, 0,2,13,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_L44", FALSE,0,0x00000fff,FALSE), | |
183 | HOWTO(R_SPARC_REGISTER, 0,4, 0,FALSE,0,complain_overflow_bitfield,sparc_elf_notsup_reloc, "R_SPARC_REGISTER",FALSE,0,MINUS_ONE, FALSE), | |
184 | HOWTO(R_SPARC_UA64, 0,4,64,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_UA64", FALSE,0,MINUS_ONE, TRUE), | |
b9734f35 JJ |
185 | HOWTO(R_SPARC_UA16, 0,1,16,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_UA16", FALSE,0,0x0000ffff,TRUE), |
186 | HOWTO(R_SPARC_TLS_GD_HI22,10,2,22,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_GD_HI22",FALSE,0,0x003fffff,TRUE), | |
187 | HOWTO(R_SPARC_TLS_GD_LO10,0,2,10,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_GD_LO10",FALSE,0,0x000003ff,TRUE), | |
188 | HOWTO(R_SPARC_TLS_GD_ADD,0,0, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_GD_ADD",FALSE,0,0x00000000,TRUE), | |
189 | HOWTO(R_SPARC_TLS_GD_CALL,2,2,30,TRUE,0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_TLS_GD_CALL",FALSE,0,0x3fffffff,TRUE), | |
190 | HOWTO(R_SPARC_TLS_LDM_HI22,10,2,22,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_LDM_HI22",FALSE,0,0x003fffff,TRUE), | |
191 | HOWTO(R_SPARC_TLS_LDM_LO10,0,2,10,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_LDM_LO10",FALSE,0,0x000003ff,TRUE), | |
192 | HOWTO(R_SPARC_TLS_LDM_ADD,0,0, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_LDM_ADD",FALSE,0,0x00000000,TRUE), | |
193 | HOWTO(R_SPARC_TLS_LDM_CALL,2,2,30,TRUE,0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_TLS_LDM_CALL",FALSE,0,0x3fffffff,TRUE), | |
194 | HOWTO(R_SPARC_TLS_LDO_HIX22,0,2,0,FALSE,0,complain_overflow_bitfield,sparc_elf_hix22_reloc,"R_SPARC_TLS_LDO_HIX22",FALSE,0,0x003fffff, FALSE), | |
195 | HOWTO(R_SPARC_TLS_LDO_LOX10,0,2,0,FALSE,0,complain_overflow_dont, sparc_elf_lox10_reloc, "R_SPARC_TLS_LDO_LOX10",FALSE,0,0x000003ff, FALSE), | |
196 | HOWTO(R_SPARC_TLS_LDO_ADD,0,0, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_LDO_ADD",FALSE,0,0x00000000,TRUE), | |
197 | HOWTO(R_SPARC_TLS_IE_HI22,10,2,22,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_IE_HI22",FALSE,0,0x003fffff,TRUE), | |
198 | HOWTO(R_SPARC_TLS_IE_LO10,0,2,10,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_IE_LO10",FALSE,0,0x000003ff,TRUE), | |
199 | HOWTO(R_SPARC_TLS_IE_LD,0,0, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_IE_LD",FALSE,0,0x00000000,TRUE), | |
200 | HOWTO(R_SPARC_TLS_IE_LDX,0,0, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_IE_LDX",FALSE,0,0x00000000,TRUE), | |
201 | HOWTO(R_SPARC_TLS_IE_ADD,0,0, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_IE_ADD",FALSE,0,0x00000000,TRUE), | |
202 | HOWTO(R_SPARC_TLS_LE_HIX22,0,2,0,FALSE,0,complain_overflow_bitfield,sparc_elf_hix22_reloc, "R_SPARC_TLS_LE_HIX22",FALSE,0,0x003fffff, FALSE), | |
203 | HOWTO(R_SPARC_TLS_LE_LOX10,0,2,0,FALSE,0,complain_overflow_dont, sparc_elf_lox10_reloc, "R_SPARC_TLS_LE_LOX10",FALSE,0,0x000003ff, FALSE), | |
204 | HOWTO(R_SPARC_TLS_DTPMOD32,0,0, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_DTPMOD32",FALSE,0,0x00000000,TRUE), | |
205 | HOWTO(R_SPARC_TLS_DTPMOD64,0,0, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_DTPMOD64",FALSE,0,0x00000000,TRUE), | |
206 | HOWTO(R_SPARC_TLS_DTPOFF32,0,2,32,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc,"R_SPARC_TLS_DTPOFF32",FALSE,0,0xffffffff,TRUE), | |
207 | HOWTO(R_SPARC_TLS_DTPOFF64,0,4,64,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc,"R_SPARC_TLS_DTPOFF64",FALSE,0,MINUS_ONE,TRUE), | |
208 | HOWTO(R_SPARC_TLS_TPOFF32,0,0, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_TPOFF32",FALSE,0,0x00000000,TRUE), | |
209 | HOWTO(R_SPARC_TLS_TPOFF64,0,0, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_TPOFF64",FALSE,0,0x00000000,TRUE) | |
252b5132 RH |
210 | }; |
211 | ||
212 | struct elf_reloc_map { | |
213 | bfd_reloc_code_real_type bfd_reloc_val; | |
214 | unsigned char elf_reloc_val; | |
215 | }; | |
216 | ||
dc810e39 | 217 | static const struct elf_reloc_map sparc_reloc_map[] = |
252b5132 RH |
218 | { |
219 | { BFD_RELOC_NONE, R_SPARC_NONE, }, | |
220 | { BFD_RELOC_16, R_SPARC_16, }, | |
bd5e6e7e | 221 | { BFD_RELOC_16_PCREL, R_SPARC_DISP16 }, |
252b5132 RH |
222 | { BFD_RELOC_8, R_SPARC_8 }, |
223 | { BFD_RELOC_8_PCREL, R_SPARC_DISP8 }, | |
224 | { BFD_RELOC_CTOR, R_SPARC_64 }, | |
225 | { BFD_RELOC_32, R_SPARC_32 }, | |
226 | { BFD_RELOC_32_PCREL, R_SPARC_DISP32 }, | |
227 | { BFD_RELOC_HI22, R_SPARC_HI22 }, | |
228 | { BFD_RELOC_LO10, R_SPARC_LO10, }, | |
229 | { BFD_RELOC_32_PCREL_S2, R_SPARC_WDISP30 }, | |
bd5e6e7e | 230 | { BFD_RELOC_64_PCREL, R_SPARC_DISP64 }, |
252b5132 RH |
231 | { BFD_RELOC_SPARC22, R_SPARC_22 }, |
232 | { BFD_RELOC_SPARC13, R_SPARC_13 }, | |
233 | { BFD_RELOC_SPARC_GOT10, R_SPARC_GOT10 }, | |
234 | { BFD_RELOC_SPARC_GOT13, R_SPARC_GOT13 }, | |
235 | { BFD_RELOC_SPARC_GOT22, R_SPARC_GOT22 }, | |
236 | { BFD_RELOC_SPARC_PC10, R_SPARC_PC10 }, | |
237 | { BFD_RELOC_SPARC_PC22, R_SPARC_PC22 }, | |
238 | { BFD_RELOC_SPARC_WPLT30, R_SPARC_WPLT30 }, | |
239 | { BFD_RELOC_SPARC_COPY, R_SPARC_COPY }, | |
240 | { BFD_RELOC_SPARC_GLOB_DAT, R_SPARC_GLOB_DAT }, | |
241 | { BFD_RELOC_SPARC_JMP_SLOT, R_SPARC_JMP_SLOT }, | |
242 | { BFD_RELOC_SPARC_RELATIVE, R_SPARC_RELATIVE }, | |
243 | { BFD_RELOC_SPARC_WDISP22, R_SPARC_WDISP22 }, | |
0f2712ed NC |
244 | { BFD_RELOC_SPARC_UA16, R_SPARC_UA16 }, |
245 | { BFD_RELOC_SPARC_UA32, R_SPARC_UA32 }, | |
246 | { BFD_RELOC_SPARC_UA64, R_SPARC_UA64 }, | |
247 | { BFD_RELOC_SPARC_10, R_SPARC_10 }, | |
248 | { BFD_RELOC_SPARC_11, R_SPARC_11 }, | |
249 | { BFD_RELOC_SPARC_64, R_SPARC_64 }, | |
250 | { BFD_RELOC_SPARC_OLO10, R_SPARC_OLO10 }, | |
251 | { BFD_RELOC_SPARC_HH22, R_SPARC_HH22 }, | |
252 | { BFD_RELOC_SPARC_HM10, R_SPARC_HM10 }, | |
253 | { BFD_RELOC_SPARC_LM22, R_SPARC_LM22 }, | |
254 | { BFD_RELOC_SPARC_PC_HH22, R_SPARC_PC_HH22 }, | |
255 | { BFD_RELOC_SPARC_PC_HM10, R_SPARC_PC_HM10 }, | |
256 | { BFD_RELOC_SPARC_PC_LM22, R_SPARC_PC_LM22 }, | |
257 | { BFD_RELOC_SPARC_WDISP16, R_SPARC_WDISP16 }, | |
258 | { BFD_RELOC_SPARC_WDISP19, R_SPARC_WDISP19 }, | |
259 | { BFD_RELOC_SPARC_7, R_SPARC_7 }, | |
260 | { BFD_RELOC_SPARC_5, R_SPARC_5 }, | |
261 | { BFD_RELOC_SPARC_6, R_SPARC_6 }, | |
262 | { BFD_RELOC_SPARC_DISP64, R_SPARC_DISP64 }, | |
b9734f35 JJ |
263 | { BFD_RELOC_SPARC_TLS_GD_HI22, R_SPARC_TLS_GD_HI22 }, |
264 | { BFD_RELOC_SPARC_TLS_GD_LO10, R_SPARC_TLS_GD_LO10 }, | |
265 | { BFD_RELOC_SPARC_TLS_GD_ADD, R_SPARC_TLS_GD_ADD }, | |
266 | { BFD_RELOC_SPARC_TLS_GD_CALL, R_SPARC_TLS_GD_CALL }, | |
267 | { BFD_RELOC_SPARC_TLS_LDM_HI22, R_SPARC_TLS_LDM_HI22 }, | |
268 | { BFD_RELOC_SPARC_TLS_LDM_LO10, R_SPARC_TLS_LDM_LO10 }, | |
269 | { BFD_RELOC_SPARC_TLS_LDM_ADD, R_SPARC_TLS_LDM_ADD }, | |
270 | { BFD_RELOC_SPARC_TLS_LDM_CALL, R_SPARC_TLS_LDM_CALL }, | |
271 | { BFD_RELOC_SPARC_TLS_LDO_HIX22, R_SPARC_TLS_LDO_HIX22 }, | |
272 | { BFD_RELOC_SPARC_TLS_LDO_LOX10, R_SPARC_TLS_LDO_LOX10 }, | |
273 | { BFD_RELOC_SPARC_TLS_LDO_ADD, R_SPARC_TLS_LDO_ADD }, | |
274 | { BFD_RELOC_SPARC_TLS_IE_HI22, R_SPARC_TLS_IE_HI22 }, | |
275 | { BFD_RELOC_SPARC_TLS_IE_LO10, R_SPARC_TLS_IE_LO10 }, | |
276 | { BFD_RELOC_SPARC_TLS_IE_LD, R_SPARC_TLS_IE_LD }, | |
277 | { BFD_RELOC_SPARC_TLS_IE_LDX, R_SPARC_TLS_IE_LDX }, | |
278 | { BFD_RELOC_SPARC_TLS_IE_ADD, R_SPARC_TLS_IE_ADD }, | |
279 | { BFD_RELOC_SPARC_TLS_LE_HIX22, R_SPARC_TLS_LE_HIX22 }, | |
280 | { BFD_RELOC_SPARC_TLS_LE_LOX10, R_SPARC_TLS_LE_LOX10 }, | |
281 | { BFD_RELOC_SPARC_TLS_DTPMOD32, R_SPARC_TLS_DTPMOD32 }, | |
282 | { BFD_RELOC_SPARC_TLS_DTPMOD64, R_SPARC_TLS_DTPMOD64 }, | |
283 | { BFD_RELOC_SPARC_TLS_DTPOFF32, R_SPARC_TLS_DTPOFF32 }, | |
284 | { BFD_RELOC_SPARC_TLS_DTPOFF64, R_SPARC_TLS_DTPOFF64 }, | |
285 | { BFD_RELOC_SPARC_TLS_TPOFF32, R_SPARC_TLS_TPOFF32 }, | |
286 | { BFD_RELOC_SPARC_TLS_TPOFF64, R_SPARC_TLS_TPOFF64 }, | |
bd5e6e7e JJ |
287 | #ifndef SPARC64_OLD_RELOCS |
288 | { BFD_RELOC_SPARC_PLT32, R_SPARC_PLT32 }, | |
289 | #endif | |
0f2712ed NC |
290 | { BFD_RELOC_SPARC_PLT64, R_SPARC_PLT64 }, |
291 | { BFD_RELOC_SPARC_HIX22, R_SPARC_HIX22 }, | |
292 | { BFD_RELOC_SPARC_LOX10, R_SPARC_LOX10 }, | |
293 | { BFD_RELOC_SPARC_H44, R_SPARC_H44 }, | |
294 | { BFD_RELOC_SPARC_M44, R_SPARC_M44 }, | |
295 | { BFD_RELOC_SPARC_L44, R_SPARC_L44 }, | |
296 | { BFD_RELOC_SPARC_REGISTER, R_SPARC_REGISTER } | |
252b5132 RH |
297 | }; |
298 | ||
299 | static reloc_howto_type * | |
300 | sparc64_elf_reloc_type_lookup (abfd, code) | |
6c08d697 | 301 | bfd *abfd ATTRIBUTE_UNUSED; |
252b5132 RH |
302 | bfd_reloc_code_real_type code; |
303 | { | |
304 | unsigned int i; | |
305 | for (i = 0; i < sizeof (sparc_reloc_map) / sizeof (struct elf_reloc_map); i++) | |
306 | { | |
307 | if (sparc_reloc_map[i].bfd_reloc_val == code) | |
308 | return &sparc64_elf_howto_table[(int) sparc_reloc_map[i].elf_reloc_val]; | |
309 | } | |
310 | return 0; | |
311 | } | |
312 | ||
313 | static void | |
314 | sparc64_elf_info_to_howto (abfd, cache_ptr, dst) | |
6c08d697 | 315 | bfd *abfd ATTRIBUTE_UNUSED; |
252b5132 | 316 | arelent *cache_ptr; |
947216bf | 317 | Elf_Internal_Rela *dst; |
252b5132 | 318 | { |
f65054f7 RH |
319 | BFD_ASSERT (ELF64_R_TYPE_ID (dst->r_info) < (unsigned int) R_SPARC_max_std); |
320 | cache_ptr->howto = &sparc64_elf_howto_table[ELF64_R_TYPE_ID (dst->r_info)]; | |
321 | } | |
322 | \f | |
3e1d7f19 JJ |
323 | struct sparc64_elf_section_data |
324 | { | |
325 | struct bfd_elf_section_data elf; | |
326 | unsigned int do_relax, reloc_count; | |
327 | }; | |
328 | ||
329 | #define sec_do_relax(sec) \ | |
330 | ((struct sparc64_elf_section_data *) elf_section_data (sec))->do_relax | |
331 | #define canon_reloc_count(sec) \ | |
332 | ((struct sparc64_elf_section_data *) elf_section_data (sec))->reloc_count | |
333 | ||
f65054f7 RH |
334 | /* Due to the way how we handle R_SPARC_OLO10, each entry in a SHT_RELA |
335 | section can represent up to two relocs, we must tell the user to allocate | |
336 | more space. */ | |
435b1e90 | 337 | |
f65054f7 RH |
338 | static long |
339 | sparc64_elf_get_reloc_upper_bound (abfd, sec) | |
6c08d697 | 340 | bfd *abfd ATTRIBUTE_UNUSED; |
f65054f7 RH |
341 | asection *sec; |
342 | { | |
343 | return (sec->reloc_count * 2 + 1) * sizeof (arelent *); | |
344 | } | |
345 | ||
346 | static long | |
347 | sparc64_elf_get_dynamic_reloc_upper_bound (abfd) | |
348 | bfd *abfd; | |
349 | { | |
350 | return _bfd_elf_get_dynamic_reloc_upper_bound (abfd) * 2; | |
351 | } | |
352 | ||
435b1e90 | 353 | /* Read relocations for ASECT from REL_HDR. There are RELOC_COUNT of |
f65054f7 RH |
354 | them. We cannot use generic elf routines for this, because R_SPARC_OLO10 |
355 | has secondary addend in ELF64_R_TYPE_DATA. We handle it as two relocations | |
356 | for the same location, R_SPARC_LO10 and R_SPARC_13. */ | |
357 | ||
b34976b6 | 358 | static bfd_boolean |
f65054f7 RH |
359 | sparc64_elf_slurp_one_reloc_table (abfd, asect, rel_hdr, symbols, dynamic) |
360 | bfd *abfd; | |
361 | asection *asect; | |
362 | Elf_Internal_Shdr *rel_hdr; | |
363 | asymbol **symbols; | |
b34976b6 | 364 | bfd_boolean dynamic; |
f65054f7 | 365 | { |
f65054f7 RH |
366 | PTR allocated = NULL; |
367 | bfd_byte *native_relocs; | |
368 | arelent *relent; | |
369 | unsigned int i; | |
370 | int entsize; | |
371 | bfd_size_type count; | |
372 | arelent *relents; | |
373 | ||
dc810e39 | 374 | allocated = (PTR) bfd_malloc (rel_hdr->sh_size); |
f65054f7 RH |
375 | if (allocated == NULL) |
376 | goto error_return; | |
377 | ||
378 | if (bfd_seek (abfd, rel_hdr->sh_offset, SEEK_SET) != 0 | |
dc810e39 | 379 | || bfd_bread (allocated, rel_hdr->sh_size, abfd) != rel_hdr->sh_size) |
f65054f7 RH |
380 | goto error_return; |
381 | ||
382 | native_relocs = (bfd_byte *) allocated; | |
383 | ||
3e1d7f19 | 384 | relents = asect->relocation + canon_reloc_count (asect); |
f65054f7 RH |
385 | |
386 | entsize = rel_hdr->sh_entsize; | |
387 | BFD_ASSERT (entsize == sizeof (Elf64_External_Rela)); | |
435b1e90 | 388 | |
f65054f7 RH |
389 | count = rel_hdr->sh_size / entsize; |
390 | ||
391 | for (i = 0, relent = relents; i < count; | |
392 | i++, relent++, native_relocs += entsize) | |
393 | { | |
394 | Elf_Internal_Rela rela; | |
395 | ||
947216bf | 396 | bfd_elf64_swap_reloca_in (abfd, native_relocs, &rela); |
f65054f7 RH |
397 | |
398 | /* The address of an ELF reloc is section relative for an object | |
399 | file, and absolute for an executable file or shared library. | |
400 | The address of a normal BFD reloc is always section relative, | |
401 | and the address of a dynamic reloc is absolute.. */ | |
402 | if ((abfd->flags & (EXEC_P | DYNAMIC)) == 0 || dynamic) | |
403 | relent->address = rela.r_offset; | |
404 | else | |
405 | relent->address = rela.r_offset - asect->vma; | |
406 | ||
407 | if (ELF64_R_SYM (rela.r_info) == 0) | |
408 | relent->sym_ptr_ptr = bfd_abs_section_ptr->symbol_ptr_ptr; | |
409 | else | |
410 | { | |
411 | asymbol **ps, *s; | |
412 | ||
413 | ps = symbols + ELF64_R_SYM (rela.r_info) - 1; | |
414 | s = *ps; | |
415 | ||
416 | /* Canonicalize ELF section symbols. FIXME: Why? */ | |
417 | if ((s->flags & BSF_SECTION_SYM) == 0) | |
418 | relent->sym_ptr_ptr = ps; | |
419 | else | |
420 | relent->sym_ptr_ptr = s->section->symbol_ptr_ptr; | |
421 | } | |
422 | ||
423 | relent->addend = rela.r_addend; | |
424 | ||
425 | BFD_ASSERT (ELF64_R_TYPE_ID (rela.r_info) < (unsigned int) R_SPARC_max_std); | |
426 | if (ELF64_R_TYPE_ID (rela.r_info) == R_SPARC_OLO10) | |
427 | { | |
428 | relent->howto = &sparc64_elf_howto_table[R_SPARC_LO10]; | |
429 | relent[1].address = relent->address; | |
430 | relent++; | |
431 | relent->sym_ptr_ptr = bfd_abs_section_ptr->symbol_ptr_ptr; | |
432 | relent->addend = ELF64_R_TYPE_DATA (rela.r_info); | |
433 | relent->howto = &sparc64_elf_howto_table[R_SPARC_13]; | |
434 | } | |
435 | else | |
436 | relent->howto = &sparc64_elf_howto_table[ELF64_R_TYPE_ID (rela.r_info)]; | |
437 | } | |
438 | ||
3e1d7f19 | 439 | canon_reloc_count (asect) += relent - relents; |
f65054f7 RH |
440 | |
441 | if (allocated != NULL) | |
442 | free (allocated); | |
443 | ||
b34976b6 | 444 | return TRUE; |
f65054f7 RH |
445 | |
446 | error_return: | |
447 | if (allocated != NULL) | |
448 | free (allocated); | |
b34976b6 | 449 | return FALSE; |
f65054f7 RH |
450 | } |
451 | ||
452 | /* Read in and swap the external relocs. */ | |
453 | ||
b34976b6 | 454 | static bfd_boolean |
f65054f7 RH |
455 | sparc64_elf_slurp_reloc_table (abfd, asect, symbols, dynamic) |
456 | bfd *abfd; | |
457 | asection *asect; | |
458 | asymbol **symbols; | |
b34976b6 | 459 | bfd_boolean dynamic; |
f65054f7 RH |
460 | { |
461 | struct bfd_elf_section_data * const d = elf_section_data (asect); | |
462 | Elf_Internal_Shdr *rel_hdr; | |
463 | Elf_Internal_Shdr *rel_hdr2; | |
dc810e39 | 464 | bfd_size_type amt; |
f65054f7 RH |
465 | |
466 | if (asect->relocation != NULL) | |
b34976b6 | 467 | return TRUE; |
f65054f7 RH |
468 | |
469 | if (! dynamic) | |
470 | { | |
471 | if ((asect->flags & SEC_RELOC) == 0 | |
472 | || asect->reloc_count == 0) | |
b34976b6 | 473 | return TRUE; |
f65054f7 RH |
474 | |
475 | rel_hdr = &d->rel_hdr; | |
476 | rel_hdr2 = d->rel_hdr2; | |
477 | ||
478 | BFD_ASSERT (asect->rel_filepos == rel_hdr->sh_offset | |
479 | || (rel_hdr2 && asect->rel_filepos == rel_hdr2->sh_offset)); | |
480 | } | |
481 | else | |
482 | { | |
483 | /* Note that ASECT->RELOC_COUNT tends not to be accurate in this | |
484 | case because relocations against this section may use the | |
485 | dynamic symbol table, and in that case bfd_section_from_shdr | |
486 | in elf.c does not update the RELOC_COUNT. */ | |
eea6121a | 487 | if (asect->size == 0) |
b34976b6 | 488 | return TRUE; |
f65054f7 RH |
489 | |
490 | rel_hdr = &d->this_hdr; | |
d9bc7a44 | 491 | asect->reloc_count = NUM_SHDR_ENTRIES (rel_hdr); |
f65054f7 RH |
492 | rel_hdr2 = NULL; |
493 | } | |
494 | ||
dc810e39 AM |
495 | amt = asect->reloc_count; |
496 | amt *= 2 * sizeof (arelent); | |
497 | asect->relocation = (arelent *) bfd_alloc (abfd, amt); | |
f65054f7 | 498 | if (asect->relocation == NULL) |
b34976b6 | 499 | return FALSE; |
f65054f7 | 500 | |
3e1d7f19 JJ |
501 | /* The sparc64_elf_slurp_one_reloc_table routine increments |
502 | canon_reloc_count. */ | |
503 | canon_reloc_count (asect) = 0; | |
435b1e90 | 504 | |
f65054f7 RH |
505 | if (!sparc64_elf_slurp_one_reloc_table (abfd, asect, rel_hdr, symbols, |
506 | dynamic)) | |
b34976b6 | 507 | return FALSE; |
435b1e90 KH |
508 | |
509 | if (rel_hdr2 | |
f65054f7 RH |
510 | && !sparc64_elf_slurp_one_reloc_table (abfd, asect, rel_hdr2, symbols, |
511 | dynamic)) | |
b34976b6 | 512 | return FALSE; |
f65054f7 | 513 | |
b34976b6 | 514 | return TRUE; |
f65054f7 RH |
515 | } |
516 | ||
3e1d7f19 JJ |
517 | /* Canonicalize the relocs. */ |
518 | ||
519 | static long | |
520 | sparc64_elf_canonicalize_reloc (abfd, section, relptr, symbols) | |
521 | bfd *abfd; | |
522 | sec_ptr section; | |
523 | arelent **relptr; | |
524 | asymbol **symbols; | |
525 | { | |
526 | arelent *tblptr; | |
527 | unsigned int i; | |
9c5bfbb7 | 528 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
3e1d7f19 JJ |
529 | |
530 | if (! bed->s->slurp_reloc_table (abfd, section, symbols, FALSE)) | |
531 | return -1; | |
532 | ||
533 | tblptr = section->relocation; | |
534 | for (i = 0; i < canon_reloc_count (section); i++) | |
535 | *relptr++ = tblptr++; | |
536 | ||
537 | *relptr = NULL; | |
538 | ||
539 | return canon_reloc_count (section); | |
540 | } | |
541 | ||
542 | ||
f65054f7 RH |
543 | /* Canonicalize the dynamic relocation entries. Note that we return |
544 | the dynamic relocations as a single block, although they are | |
545 | actually associated with particular sections; the interface, which | |
546 | was designed for SunOS style shared libraries, expects that there | |
547 | is only one set of dynamic relocs. Any section that was actually | |
548 | installed in the BFD, and has type SHT_REL or SHT_RELA, and uses | |
549 | the dynamic symbol table, is considered to be a dynamic reloc | |
550 | section. */ | |
551 | ||
552 | static long | |
553 | sparc64_elf_canonicalize_dynamic_reloc (abfd, storage, syms) | |
554 | bfd *abfd; | |
555 | arelent **storage; | |
556 | asymbol **syms; | |
557 | { | |
558 | asection *s; | |
559 | long ret; | |
560 | ||
561 | if (elf_dynsymtab (abfd) == 0) | |
562 | { | |
563 | bfd_set_error (bfd_error_invalid_operation); | |
564 | return -1; | |
565 | } | |
566 | ||
567 | ret = 0; | |
568 | for (s = abfd->sections; s != NULL; s = s->next) | |
569 | { | |
570 | if (elf_section_data (s)->this_hdr.sh_link == elf_dynsymtab (abfd) | |
571 | && (elf_section_data (s)->this_hdr.sh_type == SHT_RELA)) | |
572 | { | |
573 | arelent *p; | |
574 | long count, i; | |
575 | ||
b34976b6 | 576 | if (! sparc64_elf_slurp_reloc_table (abfd, s, syms, TRUE)) |
f65054f7 | 577 | return -1; |
3e1d7f19 | 578 | count = canon_reloc_count (s); |
f65054f7 RH |
579 | p = s->relocation; |
580 | for (i = 0; i < count; i++) | |
581 | *storage++ = p++; | |
582 | ret += count; | |
583 | } | |
584 | } | |
585 | ||
586 | *storage = NULL; | |
587 | ||
588 | return ret; | |
589 | } | |
590 | ||
591 | /* Write out the relocs. */ | |
592 | ||
593 | static void | |
594 | sparc64_elf_write_relocs (abfd, sec, data) | |
595 | bfd *abfd; | |
596 | asection *sec; | |
597 | PTR data; | |
598 | { | |
b34976b6 | 599 | bfd_boolean *failedp = (bfd_boolean *) data; |
f65054f7 | 600 | Elf_Internal_Shdr *rela_hdr; |
37fb6db1 | 601 | Elf64_External_Rela *outbound_relocas, *src_rela; |
f65054f7 RH |
602 | unsigned int idx, count; |
603 | asymbol *last_sym = 0; | |
604 | int last_sym_idx = 0; | |
605 | ||
606 | /* If we have already failed, don't do anything. */ | |
607 | if (*failedp) | |
608 | return; | |
609 | ||
610 | if ((sec->flags & SEC_RELOC) == 0) | |
611 | return; | |
612 | ||
613 | /* The linker backend writes the relocs out itself, and sets the | |
614 | reloc_count field to zero to inhibit writing them here. Also, | |
615 | sometimes the SEC_RELOC flag gets set even when there aren't any | |
616 | relocs. */ | |
617 | if (sec->reloc_count == 0) | |
618 | return; | |
619 | ||
620 | /* We can combine two relocs that refer to the same address | |
621 | into R_SPARC_OLO10 if first one is R_SPARC_LO10 and the | |
622 | latter is R_SPARC_13 with no associated symbol. */ | |
623 | count = 0; | |
624 | for (idx = 0; idx < sec->reloc_count; idx++) | |
625 | { | |
626 | bfd_vma addr; | |
f65054f7 RH |
627 | |
628 | ++count; | |
629 | ||
630 | addr = sec->orelocation[idx]->address; | |
631 | if (sec->orelocation[idx]->howto->type == R_SPARC_LO10 | |
632 | && idx < sec->reloc_count - 1) | |
633 | { | |
634 | arelent *r = sec->orelocation[idx + 1]; | |
635 | ||
636 | if (r->howto->type == R_SPARC_13 | |
637 | && r->address == addr | |
638 | && bfd_is_abs_section ((*r->sym_ptr_ptr)->section) | |
639 | && (*r->sym_ptr_ptr)->value == 0) | |
640 | ++idx; | |
641 | } | |
642 | } | |
643 | ||
644 | rela_hdr = &elf_section_data (sec)->rel_hdr; | |
645 | ||
646 | rela_hdr->sh_size = rela_hdr->sh_entsize * count; | |
647 | rela_hdr->contents = (PTR) bfd_alloc (abfd, rela_hdr->sh_size); | |
648 | if (rela_hdr->contents == NULL) | |
649 | { | |
b34976b6 | 650 | *failedp = TRUE; |
f65054f7 RH |
651 | return; |
652 | } | |
653 | ||
654 | /* Figure out whether the relocations are RELA or REL relocations. */ | |
655 | if (rela_hdr->sh_type != SHT_RELA) | |
656 | abort (); | |
657 | ||
435b1e90 | 658 | /* orelocation has the data, reloc_count has the count... */ |
f65054f7 | 659 | outbound_relocas = (Elf64_External_Rela *) rela_hdr->contents; |
37fb6db1 | 660 | src_rela = outbound_relocas; |
f65054f7 RH |
661 | |
662 | for (idx = 0; idx < sec->reloc_count; idx++) | |
663 | { | |
664 | Elf_Internal_Rela dst_rela; | |
f65054f7 RH |
665 | arelent *ptr; |
666 | asymbol *sym; | |
667 | int n; | |
668 | ||
669 | ptr = sec->orelocation[idx]; | |
f65054f7 RH |
670 | |
671 | /* The address of an ELF reloc is section relative for an object | |
672 | file, and absolute for an executable file or shared library. | |
673 | The address of a BFD reloc is always section relative. */ | |
674 | if ((abfd->flags & (EXEC_P | DYNAMIC)) == 0) | |
675 | dst_rela.r_offset = ptr->address; | |
676 | else | |
677 | dst_rela.r_offset = ptr->address + sec->vma; | |
678 | ||
679 | sym = *ptr->sym_ptr_ptr; | |
680 | if (sym == last_sym) | |
681 | n = last_sym_idx; | |
682 | else if (bfd_is_abs_section (sym->section) && sym->value == 0) | |
683 | n = STN_UNDEF; | |
684 | else | |
685 | { | |
686 | last_sym = sym; | |
687 | n = _bfd_elf_symbol_from_bfd_symbol (abfd, &sym); | |
688 | if (n < 0) | |
689 | { | |
b34976b6 | 690 | *failedp = TRUE; |
f65054f7 RH |
691 | return; |
692 | } | |
693 | last_sym_idx = n; | |
694 | } | |
695 | ||
696 | if ((*ptr->sym_ptr_ptr)->the_bfd != NULL | |
697 | && (*ptr->sym_ptr_ptr)->the_bfd->xvec != abfd->xvec | |
698 | && ! _bfd_elf_validate_reloc (abfd, ptr)) | |
699 | { | |
b34976b6 | 700 | *failedp = TRUE; |
f65054f7 RH |
701 | return; |
702 | } | |
703 | ||
704 | if (ptr->howto->type == R_SPARC_LO10 | |
705 | && idx < sec->reloc_count - 1) | |
706 | { | |
707 | arelent *r = sec->orelocation[idx + 1]; | |
708 | ||
709 | if (r->howto->type == R_SPARC_13 | |
710 | && r->address == ptr->address | |
711 | && bfd_is_abs_section ((*r->sym_ptr_ptr)->section) | |
712 | && (*r->sym_ptr_ptr)->value == 0) | |
713 | { | |
714 | idx++; | |
715 | dst_rela.r_info | |
716 | = ELF64_R_INFO (n, ELF64_R_TYPE_INFO (r->addend, | |
717 | R_SPARC_OLO10)); | |
718 | } | |
719 | else | |
720 | dst_rela.r_info = ELF64_R_INFO (n, R_SPARC_LO10); | |
721 | } | |
722 | else | |
723 | dst_rela.r_info = ELF64_R_INFO (n, ptr->howto->type); | |
724 | ||
725 | dst_rela.r_addend = ptr->addend; | |
947216bf | 726 | bfd_elf64_swap_reloca_out (abfd, &dst_rela, (bfd_byte *) src_rela); |
37fb6db1 | 727 | ++src_rela; |
f65054f7 | 728 | } |
252b5132 | 729 | } |
587ff49e RH |
730 | \f |
731 | /* Sparc64 ELF linker hash table. */ | |
732 | ||
733 | struct sparc64_elf_app_reg | |
734 | { | |
735 | unsigned char bind; | |
736 | unsigned short shndx; | |
737 | bfd *abfd; | |
738 | char *name; | |
739 | }; | |
740 | ||
741 | struct sparc64_elf_link_hash_table | |
742 | { | |
743 | struct elf_link_hash_table root; | |
744 | ||
a51a7930 EB |
745 | /* Short-cuts to get to dynamic linker sections. */ |
746 | asection *sgot; | |
747 | asection *srelgot; | |
748 | ||
587ff49e RH |
749 | struct sparc64_elf_app_reg app_regs [4]; |
750 | }; | |
751 | ||
752 | /* Get the Sparc64 ELF linker hash table from a link_info structure. */ | |
753 | ||
754 | #define sparc64_elf_hash_table(p) \ | |
755 | ((struct sparc64_elf_link_hash_table *) ((p)->hash)) | |
435b1e90 | 756 | |
587ff49e RH |
757 | /* Create a Sparc64 ELF linker hash table. */ |
758 | ||
759 | static struct bfd_link_hash_table * | |
760 | sparc64_elf_bfd_link_hash_table_create (abfd) | |
761 | bfd *abfd; | |
762 | { | |
763 | struct sparc64_elf_link_hash_table *ret; | |
dc810e39 | 764 | bfd_size_type amt = sizeof (struct sparc64_elf_link_hash_table); |
587ff49e | 765 | |
e2d34d7d | 766 | ret = (struct sparc64_elf_link_hash_table *) bfd_zmalloc (amt); |
587ff49e RH |
767 | if (ret == (struct sparc64_elf_link_hash_table *) NULL) |
768 | return NULL; | |
769 | ||
770 | if (! _bfd_elf_link_hash_table_init (&ret->root, abfd, | |
771 | _bfd_elf_link_hash_newfunc)) | |
772 | { | |
e2d34d7d | 773 | free (ret); |
587ff49e RH |
774 | return NULL; |
775 | } | |
776 | ||
777 | return &ret->root.root; | |
778 | } | |
a51a7930 EB |
779 | |
780 | /* Create .got and .rela.got sections in DYNOBJ and set up | |
781 | shortcuts to them in our hash table. */ | |
782 | ||
783 | static bfd_boolean | |
784 | create_got_section (dynobj, info) | |
785 | bfd *dynobj; | |
786 | struct bfd_link_info *info; | |
787 | { | |
788 | struct sparc64_elf_link_hash_table *htab; | |
789 | ||
790 | if (! _bfd_elf_create_got_section (dynobj, info)) | |
791 | return FALSE; | |
792 | ||
793 | htab = sparc64_elf_hash_table (info); | |
794 | htab->sgot = bfd_get_section_by_name (dynobj, ".got"); | |
795 | BFD_ASSERT (htab->sgot != NULL); | |
796 | ||
797 | htab->srelgot = bfd_make_section (dynobj, ".rela.got"); | |
798 | if (htab->srelgot == NULL | |
799 | || ! bfd_set_section_flags (dynobj, htab->srelgot, SEC_ALLOC | |
800 | | SEC_LOAD | |
801 | | SEC_HAS_CONTENTS | |
802 | | SEC_IN_MEMORY | |
803 | | SEC_LINKER_CREATED | |
804 | | SEC_READONLY) | |
805 | || ! bfd_set_section_alignment (dynobj, htab->srelgot, 3)) | |
806 | return FALSE; | |
807 | return TRUE; | |
808 | } | |
809 | ||
810 | /* Create .plt, .rela.plt, .got, .rela.got, .dynbss, and | |
811 | .rela.bss sections in DYNOBJ, and set up shortcuts to them in our | |
812 | hash table. */ | |
813 | ||
814 | static bfd_boolean | |
815 | sparc64_elf_create_dynamic_sections (dynobj, info) | |
816 | bfd *dynobj; | |
817 | struct bfd_link_info *info; | |
818 | { | |
819 | struct sparc64_elf_link_hash_table *htab; | |
820 | ||
821 | htab = sparc64_elf_hash_table (info); | |
822 | if (!htab->sgot && !create_got_section (dynobj, info)) | |
823 | return FALSE; | |
824 | ||
825 | if (!_bfd_elf_create_dynamic_sections (dynobj, info)) | |
826 | return FALSE; | |
827 | ||
828 | return TRUE; | |
829 | } | |
252b5132 RH |
830 | \f |
831 | /* Utility for performing the standard initial work of an instruction | |
832 | relocation. | |
833 | *PRELOCATION will contain the relocated item. | |
834 | *PINSN will contain the instruction from the input stream. | |
835 | If the result is `bfd_reloc_other' the caller can continue with | |
836 | performing the relocation. Otherwise it must stop and return the | |
837 | value to its caller. */ | |
838 | ||
839 | static bfd_reloc_status_type | |
840 | init_insn_reloc (abfd, | |
841 | reloc_entry, | |
842 | symbol, | |
843 | data, | |
844 | input_section, | |
845 | output_bfd, | |
846 | prelocation, | |
847 | pinsn) | |
848 | bfd *abfd; | |
849 | arelent *reloc_entry; | |
850 | asymbol *symbol; | |
851 | PTR data; | |
852 | asection *input_section; | |
853 | bfd *output_bfd; | |
854 | bfd_vma *prelocation; | |
855 | bfd_vma *pinsn; | |
856 | { | |
857 | bfd_vma relocation; | |
858 | reloc_howto_type *howto = reloc_entry->howto; | |
859 | ||
860 | if (output_bfd != (bfd *) NULL | |
861 | && (symbol->flags & BSF_SECTION_SYM) == 0 | |
862 | && (! howto->partial_inplace | |
863 | || reloc_entry->addend == 0)) | |
864 | { | |
865 | reloc_entry->address += input_section->output_offset; | |
866 | return bfd_reloc_ok; | |
867 | } | |
868 | ||
b34976b6 | 869 | /* This works because partial_inplace is FALSE. */ |
252b5132 RH |
870 | if (output_bfd != NULL) |
871 | return bfd_reloc_continue; | |
872 | ||
07515404 | 873 | if (reloc_entry->address > bfd_get_section_limit (abfd, input_section)) |
252b5132 RH |
874 | return bfd_reloc_outofrange; |
875 | ||
876 | relocation = (symbol->value | |
877 | + symbol->section->output_section->vma | |
878 | + symbol->section->output_offset); | |
879 | relocation += reloc_entry->addend; | |
880 | if (howto->pc_relative) | |
881 | { | |
882 | relocation -= (input_section->output_section->vma | |
883 | + input_section->output_offset); | |
884 | relocation -= reloc_entry->address; | |
885 | } | |
886 | ||
887 | *prelocation = relocation; | |
888 | *pinsn = bfd_get_32 (abfd, (bfd_byte *) data + reloc_entry->address); | |
889 | return bfd_reloc_other; | |
890 | } | |
891 | ||
892 | /* For unsupported relocs. */ | |
893 | ||
894 | static bfd_reloc_status_type | |
895 | sparc_elf_notsup_reloc (abfd, | |
896 | reloc_entry, | |
897 | symbol, | |
898 | data, | |
899 | input_section, | |
900 | output_bfd, | |
901 | error_message) | |
6c08d697 JJ |
902 | bfd *abfd ATTRIBUTE_UNUSED; |
903 | arelent *reloc_entry ATTRIBUTE_UNUSED; | |
904 | asymbol *symbol ATTRIBUTE_UNUSED; | |
905 | PTR data ATTRIBUTE_UNUSED; | |
906 | asection *input_section ATTRIBUTE_UNUSED; | |
907 | bfd *output_bfd ATTRIBUTE_UNUSED; | |
908 | char **error_message ATTRIBUTE_UNUSED; | |
252b5132 RH |
909 | { |
910 | return bfd_reloc_notsupported; | |
911 | } | |
912 | ||
913 | /* Handle the WDISP16 reloc. */ | |
914 | ||
915 | static bfd_reloc_status_type | |
916 | sparc_elf_wdisp16_reloc (abfd, reloc_entry, symbol, data, input_section, | |
917 | output_bfd, error_message) | |
918 | bfd *abfd; | |
919 | arelent *reloc_entry; | |
920 | asymbol *symbol; | |
921 | PTR data; | |
922 | asection *input_section; | |
923 | bfd *output_bfd; | |
6c08d697 | 924 | char **error_message ATTRIBUTE_UNUSED; |
252b5132 RH |
925 | { |
926 | bfd_vma relocation; | |
927 | bfd_vma insn; | |
928 | bfd_reloc_status_type status; | |
929 | ||
930 | status = init_insn_reloc (abfd, reloc_entry, symbol, data, | |
931 | input_section, output_bfd, &relocation, &insn); | |
932 | if (status != bfd_reloc_other) | |
933 | return status; | |
934 | ||
dc810e39 AM |
935 | insn &= ~ (bfd_vma) 0x303fff; |
936 | insn |= (((relocation >> 2) & 0xc000) << 6) | ((relocation >> 2) & 0x3fff); | |
252b5132 RH |
937 | bfd_put_32 (abfd, insn, (bfd_byte *) data + reloc_entry->address); |
938 | ||
939 | if ((bfd_signed_vma) relocation < - 0x40000 | |
940 | || (bfd_signed_vma) relocation > 0x3ffff) | |
941 | return bfd_reloc_overflow; | |
942 | else | |
943 | return bfd_reloc_ok; | |
944 | } | |
945 | ||
946 | /* Handle the HIX22 reloc. */ | |
947 | ||
948 | static bfd_reloc_status_type | |
949 | sparc_elf_hix22_reloc (abfd, | |
950 | reloc_entry, | |
951 | symbol, | |
952 | data, | |
953 | input_section, | |
954 | output_bfd, | |
955 | error_message) | |
956 | bfd *abfd; | |
957 | arelent *reloc_entry; | |
958 | asymbol *symbol; | |
959 | PTR data; | |
960 | asection *input_section; | |
961 | bfd *output_bfd; | |
6c08d697 | 962 | char **error_message ATTRIBUTE_UNUSED; |
252b5132 RH |
963 | { |
964 | bfd_vma relocation; | |
965 | bfd_vma insn; | |
966 | bfd_reloc_status_type status; | |
967 | ||
968 | status = init_insn_reloc (abfd, reloc_entry, symbol, data, | |
969 | input_section, output_bfd, &relocation, &insn); | |
970 | if (status != bfd_reloc_other) | |
971 | return status; | |
972 | ||
973 | relocation ^= MINUS_ONE; | |
dc810e39 | 974 | insn = (insn &~ (bfd_vma) 0x3fffff) | ((relocation >> 10) & 0x3fffff); |
252b5132 RH |
975 | bfd_put_32 (abfd, insn, (bfd_byte *) data + reloc_entry->address); |
976 | ||
977 | if ((relocation & ~ (bfd_vma) 0xffffffff) != 0) | |
978 | return bfd_reloc_overflow; | |
979 | else | |
980 | return bfd_reloc_ok; | |
981 | } | |
982 | ||
983 | /* Handle the LOX10 reloc. */ | |
984 | ||
985 | static bfd_reloc_status_type | |
986 | sparc_elf_lox10_reloc (abfd, | |
987 | reloc_entry, | |
988 | symbol, | |
989 | data, | |
990 | input_section, | |
991 | output_bfd, | |
992 | error_message) | |
993 | bfd *abfd; | |
994 | arelent *reloc_entry; | |
995 | asymbol *symbol; | |
996 | PTR data; | |
997 | asection *input_section; | |
998 | bfd *output_bfd; | |
6c08d697 | 999 | char **error_message ATTRIBUTE_UNUSED; |
252b5132 RH |
1000 | { |
1001 | bfd_vma relocation; | |
1002 | bfd_vma insn; | |
1003 | bfd_reloc_status_type status; | |
1004 | ||
1005 | status = init_insn_reloc (abfd, reloc_entry, symbol, data, | |
1006 | input_section, output_bfd, &relocation, &insn); | |
1007 | if (status != bfd_reloc_other) | |
1008 | return status; | |
1009 | ||
dc810e39 | 1010 | insn = (insn &~ (bfd_vma) 0x1fff) | 0x1c00 | (relocation & 0x3ff); |
252b5132 RH |
1011 | bfd_put_32 (abfd, insn, (bfd_byte *) data + reloc_entry->address); |
1012 | ||
1013 | return bfd_reloc_ok; | |
1014 | } | |
1015 | \f | |
1016 | /* PLT/GOT stuff */ | |
1017 | ||
1018 | /* Both the headers and the entries are icache aligned. */ | |
1019 | #define PLT_ENTRY_SIZE 32 | |
1020 | #define PLT_HEADER_SIZE (4 * PLT_ENTRY_SIZE) | |
1021 | #define LARGE_PLT_THRESHOLD 32768 | |
1022 | #define GOT_RESERVED_ENTRIES 1 | |
1023 | ||
1024 | #define ELF_DYNAMIC_INTERPRETER "/usr/lib/sparcv9/ld.so.1" | |
1025 | ||
252b5132 RH |
1026 | /* Fill in the .plt section. */ |
1027 | ||
1028 | static void | |
1029 | sparc64_elf_build_plt (output_bfd, contents, nentries) | |
1030 | bfd *output_bfd; | |
1031 | unsigned char *contents; | |
1032 | int nentries; | |
1033 | { | |
1034 | const unsigned int nop = 0x01000000; | |
1035 | int i, j; | |
435b1e90 | 1036 | |
252b5132 RH |
1037 | /* The first four entries are reserved, and are initially undefined. |
1038 | We fill them with `illtrap 0' to force ld.so to do something. */ | |
1039 | ||
1040 | for (i = 0; i < PLT_HEADER_SIZE/4; ++i) | |
dc810e39 | 1041 | bfd_put_32 (output_bfd, (bfd_vma) 0, contents+i*4); |
252b5132 RH |
1042 | |
1043 | /* The first 32768 entries are close enough to plt1 to get there via | |
1044 | a straight branch. */ | |
1045 | ||
1046 | for (i = 4; i < LARGE_PLT_THRESHOLD && i < nentries; ++i) | |
1047 | { | |
1048 | unsigned char *entry = contents + i * PLT_ENTRY_SIZE; | |
1049 | unsigned int sethi, ba; | |
1050 | ||
1051 | /* sethi (. - plt0), %g1 */ | |
1052 | sethi = 0x03000000 | (i * PLT_ENTRY_SIZE); | |
1053 | ||
a11c78e7 RH |
1054 | /* ba,a,pt %xcc, plt1 */ |
1055 | ba = 0x30680000 | (((contents+PLT_ENTRY_SIZE) - (entry+4)) / 4 & 0x7ffff); | |
252b5132 | 1056 | |
dc810e39 AM |
1057 | bfd_put_32 (output_bfd, (bfd_vma) sethi, entry); |
1058 | bfd_put_32 (output_bfd, (bfd_vma) ba, entry + 4); | |
1059 | bfd_put_32 (output_bfd, (bfd_vma) nop, entry + 8); | |
1060 | bfd_put_32 (output_bfd, (bfd_vma) nop, entry + 12); | |
1061 | bfd_put_32 (output_bfd, (bfd_vma) nop, entry + 16); | |
1062 | bfd_put_32 (output_bfd, (bfd_vma) nop, entry + 20); | |
1063 | bfd_put_32 (output_bfd, (bfd_vma) nop, entry + 24); | |
1064 | bfd_put_32 (output_bfd, (bfd_vma) nop, entry + 28); | |
252b5132 RH |
1065 | } |
1066 | ||
1067 | /* Now the tricky bit. Entries 32768 and higher are grouped in blocks of | |
1068 | 160: 160 entries and 160 pointers. This is to separate code from data, | |
1069 | which is much friendlier on the cache. */ | |
435b1e90 | 1070 | |
252b5132 RH |
1071 | for (; i < nentries; i += 160) |
1072 | { | |
1073 | int block = (i + 160 <= nentries ? 160 : nentries - i); | |
1074 | for (j = 0; j < block; ++j) | |
1075 | { | |
1076 | unsigned char *entry, *ptr; | |
1077 | unsigned int ldx; | |
1078 | ||
1079 | entry = contents + i*PLT_ENTRY_SIZE + j*4*6; | |
1080 | ptr = contents + i*PLT_ENTRY_SIZE + block*4*6 + j*8; | |
1081 | ||
e62de969 JJ |
1082 | /* ldx [%o7 + ptr - (entry+4)], %g1 */ |
1083 | ldx = 0xc25be000 | ((ptr - (entry+4)) & 0x1fff); | |
252b5132 | 1084 | |
dc810e39 AM |
1085 | /* mov %o7,%g5 |
1086 | call .+8 | |
1087 | nop | |
1088 | ldx [%o7+P],%g1 | |
1089 | jmpl %o7+%g1,%g1 | |
1090 | mov %g5,%o7 */ | |
1091 | bfd_put_32 (output_bfd, (bfd_vma) 0x8a10000f, entry); | |
1092 | bfd_put_32 (output_bfd, (bfd_vma) 0x40000002, entry + 4); | |
1093 | bfd_put_32 (output_bfd, (bfd_vma) nop, entry + 8); | |
1094 | bfd_put_32 (output_bfd, (bfd_vma) ldx, entry + 12); | |
1095 | bfd_put_32 (output_bfd, (bfd_vma) 0x83c3c001, entry + 16); | |
1096 | bfd_put_32 (output_bfd, (bfd_vma) 0x9e100005, entry + 20); | |
1097 | ||
1098 | bfd_put_64 (output_bfd, (bfd_vma) (contents - (entry + 4)), ptr); | |
252b5132 RH |
1099 | } |
1100 | } | |
1101 | } | |
1102 | ||
1103 | /* Return the offset of a particular plt entry within the .plt section. */ | |
1104 | ||
1105 | static bfd_vma | |
1106 | sparc64_elf_plt_entry_offset (index) | |
dc810e39 | 1107 | bfd_vma index; |
252b5132 | 1108 | { |
dc810e39 | 1109 | bfd_vma block, ofs; |
252b5132 RH |
1110 | |
1111 | if (index < LARGE_PLT_THRESHOLD) | |
1112 | return index * PLT_ENTRY_SIZE; | |
1113 | ||
1114 | /* See above for details. */ | |
1115 | ||
1116 | block = (index - LARGE_PLT_THRESHOLD) / 160; | |
1117 | ofs = (index - LARGE_PLT_THRESHOLD) % 160; | |
1118 | ||
dc810e39 | 1119 | return (LARGE_PLT_THRESHOLD + block * 160) * PLT_ENTRY_SIZE + ofs * 6 * 4; |
252b5132 RH |
1120 | } |
1121 | ||
1122 | static bfd_vma | |
1123 | sparc64_elf_plt_ptr_offset (index, max) | |
dc810e39 AM |
1124 | bfd_vma index; |
1125 | bfd_vma max; | |
252b5132 | 1126 | { |
dc810e39 | 1127 | bfd_vma block, ofs, last; |
252b5132 RH |
1128 | |
1129 | BFD_ASSERT(index >= LARGE_PLT_THRESHOLD); | |
1130 | ||
1131 | /* See above for details. */ | |
1132 | ||
dc810e39 | 1133 | block = (((index - LARGE_PLT_THRESHOLD) / 160) * 160) + LARGE_PLT_THRESHOLD; |
a11c78e7 RH |
1134 | ofs = index - block; |
1135 | if (block + 160 > max) | |
1136 | last = (max - LARGE_PLT_THRESHOLD) % 160; | |
1137 | else | |
1138 | last = 160; | |
252b5132 | 1139 | |
a11c78e7 | 1140 | return (block * PLT_ENTRY_SIZE |
252b5132 RH |
1141 | + last * 6*4 |
1142 | + ofs * 8); | |
1143 | } | |
252b5132 RH |
1144 | \f |
1145 | /* Look through the relocs for a section during the first phase, and | |
1146 | allocate space in the global offset table or procedure linkage | |
1147 | table. */ | |
1148 | ||
b34976b6 | 1149 | static bfd_boolean |
252b5132 RH |
1150 | sparc64_elf_check_relocs (abfd, info, sec, relocs) |
1151 | bfd *abfd; | |
1152 | struct bfd_link_info *info; | |
1153 | asection *sec; | |
1154 | const Elf_Internal_Rela *relocs; | |
1155 | { | |
1156 | bfd *dynobj; | |
1157 | Elf_Internal_Shdr *symtab_hdr; | |
1158 | struct elf_link_hash_entry **sym_hashes; | |
1159 | bfd_vma *local_got_offsets; | |
1160 | const Elf_Internal_Rela *rel; | |
1161 | const Elf_Internal_Rela *rel_end; | |
1162 | asection *sgot; | |
1163 | asection *srelgot; | |
1164 | asection *sreloc; | |
1165 | ||
1049f94e | 1166 | if (info->relocatable || !(sec->flags & SEC_ALLOC)) |
b34976b6 | 1167 | return TRUE; |
252b5132 RH |
1168 | |
1169 | dynobj = elf_hash_table (info)->dynobj; | |
1170 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; | |
1171 | sym_hashes = elf_sym_hashes (abfd); | |
1172 | local_got_offsets = elf_local_got_offsets (abfd); | |
1173 | ||
1174 | sgot = NULL; | |
1175 | srelgot = NULL; | |
1176 | sreloc = NULL; | |
1177 | ||
d9bc7a44 | 1178 | rel_end = relocs + NUM_SHDR_ENTRIES (& elf_section_data (sec)->rel_hdr); |
252b5132 RH |
1179 | for (rel = relocs; rel < rel_end; rel++) |
1180 | { | |
1181 | unsigned long r_symndx; | |
1182 | struct elf_link_hash_entry *h; | |
1183 | ||
1184 | r_symndx = ELF64_R_SYM (rel->r_info); | |
1185 | if (r_symndx < symtab_hdr->sh_info) | |
1186 | h = NULL; | |
1187 | else | |
1188 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
1189 | ||
f65054f7 | 1190 | switch (ELF64_R_TYPE_ID (rel->r_info)) |
252b5132 RH |
1191 | { |
1192 | case R_SPARC_GOT10: | |
1193 | case R_SPARC_GOT13: | |
1194 | case R_SPARC_GOT22: | |
1195 | /* This symbol requires a global offset table entry. */ | |
1196 | ||
1197 | if (dynobj == NULL) | |
1198 | { | |
a51a7930 | 1199 | /* Create the .got and .rela.got sections. */ |
252b5132 | 1200 | elf_hash_table (info)->dynobj = dynobj = abfd; |
a51a7930 | 1201 | if (! create_got_section (dynobj, info)) |
b34976b6 | 1202 | return FALSE; |
252b5132 RH |
1203 | } |
1204 | ||
1205 | if (sgot == NULL) | |
1206 | { | |
a51a7930 | 1207 | sgot = sparc64_elf_hash_table (info)->sgot; |
252b5132 RH |
1208 | BFD_ASSERT (sgot != NULL); |
1209 | } | |
1210 | ||
1211 | if (srelgot == NULL && (h != NULL || info->shared)) | |
1212 | { | |
a51a7930 EB |
1213 | srelgot = sparc64_elf_hash_table (info)->srelgot; |
1214 | BFD_ASSERT (srelgot != NULL); | |
252b5132 RH |
1215 | } |
1216 | ||
1217 | if (h != NULL) | |
1218 | { | |
1219 | if (h->got.offset != (bfd_vma) -1) | |
1220 | { | |
1221 | /* We have already allocated space in the .got. */ | |
1222 | break; | |
1223 | } | |
eea6121a | 1224 | h->got.offset = sgot->size; |
252b5132 RH |
1225 | |
1226 | /* Make sure this symbol is output as a dynamic symbol. */ | |
1227 | if (h->dynindx == -1) | |
1228 | { | |
c152c796 | 1229 | if (! bfd_elf_link_record_dynamic_symbol (info, h)) |
b34976b6 | 1230 | return FALSE; |
252b5132 RH |
1231 | } |
1232 | ||
eea6121a | 1233 | srelgot->size += sizeof (Elf64_External_Rela); |
252b5132 RH |
1234 | } |
1235 | else | |
1236 | { | |
1237 | /* This is a global offset table entry for a local | |
1238 | symbol. */ | |
1239 | if (local_got_offsets == NULL) | |
1240 | { | |
dc810e39 | 1241 | bfd_size_type size; |
252b5132 RH |
1242 | register unsigned int i; |
1243 | ||
dc810e39 AM |
1244 | size = symtab_hdr->sh_info; |
1245 | size *= sizeof (bfd_vma); | |
252b5132 RH |
1246 | local_got_offsets = (bfd_vma *) bfd_alloc (abfd, size); |
1247 | if (local_got_offsets == NULL) | |
b34976b6 | 1248 | return FALSE; |
252b5132 RH |
1249 | elf_local_got_offsets (abfd) = local_got_offsets; |
1250 | for (i = 0; i < symtab_hdr->sh_info; i++) | |
1251 | local_got_offsets[i] = (bfd_vma) -1; | |
1252 | } | |
1253 | if (local_got_offsets[r_symndx] != (bfd_vma) -1) | |
1254 | { | |
1255 | /* We have already allocated space in the .got. */ | |
1256 | break; | |
1257 | } | |
eea6121a | 1258 | local_got_offsets[r_symndx] = sgot->size; |
252b5132 RH |
1259 | |
1260 | if (info->shared) | |
1261 | { | |
1262 | /* If we are generating a shared object, we need to | |
1263 | output a R_SPARC_RELATIVE reloc so that the | |
1264 | dynamic linker can adjust this GOT entry. */ | |
eea6121a | 1265 | srelgot->size += sizeof (Elf64_External_Rela); |
252b5132 RH |
1266 | } |
1267 | } | |
1268 | ||
eea6121a | 1269 | sgot->size += 8; |
252b5132 | 1270 | |
252b5132 RH |
1271 | /* Doesn't work for 64-bit -fPIC, since sethi/or builds |
1272 | unsigned numbers. If we permit ourselves to modify | |
1273 | code so we get sethi/xor, this could work. | |
1274 | Question: do we consider conditionally re-enabling | |
1275 | this for -fpic, once we know about object code models? */ | |
1276 | /* If the .got section is more than 0x1000 bytes, we add | |
1277 | 0x1000 to the value of _GLOBAL_OFFSET_TABLE_, so that 13 | |
1278 | bit relocations have a greater chance of working. */ | |
0e71e495 | 1279 | /* |
eea6121a | 1280 | if (sgot->size >= 0x1000 |
252b5132 RH |
1281 | && elf_hash_table (info)->hgot->root.u.def.value == 0) |
1282 | elf_hash_table (info)->hgot->root.u.def.value = 0x1000; | |
0e71e495 | 1283 | */ |
252b5132 RH |
1284 | |
1285 | break; | |
1286 | ||
1287 | case R_SPARC_WPLT30: | |
1288 | case R_SPARC_PLT32: | |
1289 | case R_SPARC_HIPLT22: | |
1290 | case R_SPARC_LOPLT10: | |
1291 | case R_SPARC_PCPLT32: | |
1292 | case R_SPARC_PCPLT22: | |
1293 | case R_SPARC_PCPLT10: | |
1294 | case R_SPARC_PLT64: | |
1295 | /* This symbol requires a procedure linkage table entry. We | |
1296 | actually build the entry in adjust_dynamic_symbol, | |
1297 | because this might be a case of linking PIC code without | |
1298 | linking in any dynamic objects, in which case we don't | |
1299 | need to generate a procedure linkage table after all. */ | |
1300 | ||
1301 | if (h == NULL) | |
1302 | { | |
1303 | /* It does not make sense to have a procedure linkage | |
1304 | table entry for a local symbol. */ | |
1305 | bfd_set_error (bfd_error_bad_value); | |
b34976b6 | 1306 | return FALSE; |
252b5132 RH |
1307 | } |
1308 | ||
1309 | /* Make sure this symbol is output as a dynamic symbol. */ | |
1310 | if (h->dynindx == -1) | |
1311 | { | |
c152c796 | 1312 | if (! bfd_elf_link_record_dynamic_symbol (info, h)) |
b34976b6 | 1313 | return FALSE; |
252b5132 RH |
1314 | } |
1315 | ||
f5385ebf | 1316 | h->needs_plt = 1; |
bd5e6e7e JJ |
1317 | if (ELF64_R_TYPE_ID (rel->r_info) != R_SPARC_PLT32 |
1318 | && ELF64_R_TYPE_ID (rel->r_info) != R_SPARC_PLT64) | |
1319 | break; | |
1320 | /* Fall through. */ | |
252b5132 RH |
1321 | case R_SPARC_PC10: |
1322 | case R_SPARC_PC22: | |
1323 | case R_SPARC_PC_HH22: | |
1324 | case R_SPARC_PC_HM10: | |
1325 | case R_SPARC_PC_LM22: | |
1326 | if (h != NULL | |
1327 | && strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0) | |
1328 | break; | |
1329 | /* Fall through. */ | |
1330 | case R_SPARC_DISP8: | |
1331 | case R_SPARC_DISP16: | |
1332 | case R_SPARC_DISP32: | |
1333 | case R_SPARC_DISP64: | |
1334 | case R_SPARC_WDISP30: | |
1335 | case R_SPARC_WDISP22: | |
1336 | case R_SPARC_WDISP19: | |
1337 | case R_SPARC_WDISP16: | |
1338 | if (h == NULL) | |
1339 | break; | |
1340 | /* Fall through. */ | |
1341 | case R_SPARC_8: | |
1342 | case R_SPARC_16: | |
1343 | case R_SPARC_32: | |
1344 | case R_SPARC_HI22: | |
1345 | case R_SPARC_22: | |
1346 | case R_SPARC_13: | |
1347 | case R_SPARC_LO10: | |
1348 | case R_SPARC_UA32: | |
1349 | case R_SPARC_10: | |
1350 | case R_SPARC_11: | |
1351 | case R_SPARC_64: | |
1352 | case R_SPARC_OLO10: | |
1353 | case R_SPARC_HH22: | |
1354 | case R_SPARC_HM10: | |
1355 | case R_SPARC_LM22: | |
1356 | case R_SPARC_7: | |
1357 | case R_SPARC_5: | |
1358 | case R_SPARC_6: | |
1359 | case R_SPARC_HIX22: | |
1360 | case R_SPARC_LOX10: | |
1361 | case R_SPARC_H44: | |
1362 | case R_SPARC_M44: | |
1363 | case R_SPARC_L44: | |
1364 | case R_SPARC_UA64: | |
1365 | case R_SPARC_UA16: | |
1366 | /* When creating a shared object, we must copy these relocs | |
1367 | into the output file. We create a reloc section in | |
435b1e90 | 1368 | dynobj and make room for the reloc. |
252b5132 RH |
1369 | |
1370 | But don't do this for debugging sections -- this shows up | |
1371 | with DWARF2 -- first because they are not loaded, and | |
1372 | second because DWARF sez the debug info is not to be | |
1373 | biased by the load address. */ | |
1374 | if (info->shared && (sec->flags & SEC_ALLOC)) | |
1375 | { | |
1376 | if (sreloc == NULL) | |
1377 | { | |
1378 | const char *name; | |
1379 | ||
1380 | name = (bfd_elf_string_from_elf_section | |
1381 | (abfd, | |
1382 | elf_elfheader (abfd)->e_shstrndx, | |
1383 | elf_section_data (sec)->rel_hdr.sh_name)); | |
1384 | if (name == NULL) | |
b34976b6 | 1385 | return FALSE; |
252b5132 RH |
1386 | |
1387 | BFD_ASSERT (strncmp (name, ".rela", 5) == 0 | |
1388 | && strcmp (bfd_get_section_name (abfd, sec), | |
1389 | name + 5) == 0); | |
1390 | ||
1391 | sreloc = bfd_get_section_by_name (dynobj, name); | |
1392 | if (sreloc == NULL) | |
1393 | { | |
1394 | flagword flags; | |
1395 | ||
1396 | sreloc = bfd_make_section (dynobj, name); | |
1397 | flags = (SEC_HAS_CONTENTS | SEC_READONLY | |
1398 | | SEC_IN_MEMORY | SEC_LINKER_CREATED); | |
1399 | if ((sec->flags & SEC_ALLOC) != 0) | |
1400 | flags |= SEC_ALLOC | SEC_LOAD; | |
1401 | if (sreloc == NULL | |
1402 | || ! bfd_set_section_flags (dynobj, sreloc, flags) | |
1403 | || ! bfd_set_section_alignment (dynobj, sreloc, 3)) | |
b34976b6 | 1404 | return FALSE; |
252b5132 | 1405 | } |
db6751f2 JJ |
1406 | if (sec->flags & SEC_READONLY) |
1407 | info->flags |= DF_TEXTREL; | |
252b5132 RH |
1408 | } |
1409 | ||
eea6121a | 1410 | sreloc->size += sizeof (Elf64_External_Rela); |
252b5132 RH |
1411 | } |
1412 | break; | |
1413 | ||
1414 | case R_SPARC_REGISTER: | |
1415 | /* Nothing to do. */ | |
1416 | break; | |
1417 | ||
1418 | default: | |
d003868e AM |
1419 | (*_bfd_error_handler) (_("%B: check_relocs: unhandled reloc type %d"), |
1420 | abfd, ELF64_R_TYPE_ID (rel->r_info)); | |
b34976b6 | 1421 | return FALSE; |
252b5132 RH |
1422 | } |
1423 | } | |
1424 | ||
b34976b6 | 1425 | return TRUE; |
252b5132 RH |
1426 | } |
1427 | ||
587ff49e RH |
1428 | /* Hook called by the linker routine which adds symbols from an object |
1429 | file. We use it for STT_REGISTER symbols. */ | |
1430 | ||
b34976b6 | 1431 | static bfd_boolean |
587ff49e RH |
1432 | sparc64_elf_add_symbol_hook (abfd, info, sym, namep, flagsp, secp, valp) |
1433 | bfd *abfd; | |
1434 | struct bfd_link_info *info; | |
555cd476 | 1435 | Elf_Internal_Sym *sym; |
587ff49e | 1436 | const char **namep; |
6c08d697 JJ |
1437 | flagword *flagsp ATTRIBUTE_UNUSED; |
1438 | asection **secp ATTRIBUTE_UNUSED; | |
1439 | bfd_vma *valp ATTRIBUTE_UNUSED; | |
587ff49e | 1440 | { |
8f615d07 | 1441 | static const char *const stt_types[] = { "NOTYPE", "OBJECT", "FUNCTION" }; |
587ff49e RH |
1442 | |
1443 | if (ELF_ST_TYPE (sym->st_info) == STT_REGISTER) | |
1444 | { | |
1445 | int reg; | |
1446 | struct sparc64_elf_app_reg *p; | |
435b1e90 | 1447 | |
587ff49e RH |
1448 | reg = (int)sym->st_value; |
1449 | switch (reg & ~1) | |
1450 | { | |
1451 | case 2: reg -= 2; break; | |
1452 | case 6: reg -= 4; break; | |
1453 | default: | |
1454 | (*_bfd_error_handler) | |
d003868e AM |
1455 | (_("%B: Only registers %%g[2367] can be declared using STT_REGISTER"), |
1456 | abfd); | |
b34976b6 | 1457 | return FALSE; |
587ff49e RH |
1458 | } |
1459 | ||
1460 | if (info->hash->creator != abfd->xvec | |
1461 | || (abfd->flags & DYNAMIC) != 0) | |
1462 | { | |
1463 | /* STT_REGISTER only works when linking an elf64_sparc object. | |
1464 | If STT_REGISTER comes from a dynamic object, don't put it into | |
1465 | the output bfd. The dynamic linker will recheck it. */ | |
1466 | *namep = NULL; | |
b34976b6 | 1467 | return TRUE; |
587ff49e RH |
1468 | } |
1469 | ||
1470 | p = sparc64_elf_hash_table(info)->app_regs + reg; | |
1471 | ||
1472 | if (p->name != NULL && strcmp (p->name, *namep)) | |
1473 | { | |
1474 | (*_bfd_error_handler) | |
d003868e AM |
1475 | (_("Register %%g%d used incompatibly: %s in %B, previously %s in %B"), |
1476 | abfd, p->abfd, (int) sym->st_value, | |
1477 | **namep ? *namep : "#scratch", | |
1478 | *p->name ? p->name : "#scratch"); | |
b34976b6 | 1479 | return FALSE; |
587ff49e RH |
1480 | } |
1481 | ||
1482 | if (p->name == NULL) | |
1483 | { | |
1484 | if (**namep) | |
1485 | { | |
1486 | struct elf_link_hash_entry *h; | |
435b1e90 | 1487 | |
587ff49e | 1488 | h = (struct elf_link_hash_entry *) |
b34976b6 | 1489 | bfd_link_hash_lookup (info->hash, *namep, FALSE, FALSE, FALSE); |
587ff49e RH |
1490 | |
1491 | if (h != NULL) | |
1492 | { | |
1493 | unsigned char type = h->type; | |
1494 | ||
8f615d07 AM |
1495 | if (type > STT_FUNC) |
1496 | type = 0; | |
1497 | (*_bfd_error_handler) | |
d003868e AM |
1498 | (_("Symbol `%s' has differing types: REGISTER in %B, previously %s in %B"), |
1499 | abfd, p->abfd, *namep, stt_types[type]); | |
b34976b6 | 1500 | return FALSE; |
587ff49e RH |
1501 | } |
1502 | ||
1503 | p->name = bfd_hash_allocate (&info->hash->table, | |
1504 | strlen (*namep) + 1); | |
1505 | if (!p->name) | |
b34976b6 | 1506 | return FALSE; |
587ff49e RH |
1507 | |
1508 | strcpy (p->name, *namep); | |
1509 | } | |
1510 | else | |
1511 | p->name = ""; | |
1512 | p->bind = ELF_ST_BIND (sym->st_info); | |
1513 | p->abfd = abfd; | |
1514 | p->shndx = sym->st_shndx; | |
1515 | } | |
1516 | else | |
1517 | { | |
1518 | if (p->bind == STB_WEAK | |
1519 | && ELF_ST_BIND (sym->st_info) == STB_GLOBAL) | |
1520 | { | |
1521 | p->bind = STB_GLOBAL; | |
1522 | p->abfd = abfd; | |
1523 | } | |
1524 | } | |
1525 | *namep = NULL; | |
b34976b6 | 1526 | return TRUE; |
587ff49e | 1527 | } |
4ab82700 | 1528 | else if (*namep && **namep |
986b7daa | 1529 | && info->hash->creator == abfd->xvec) |
587ff49e RH |
1530 | { |
1531 | int i; | |
1532 | struct sparc64_elf_app_reg *p; | |
1533 | ||
1534 | p = sparc64_elf_hash_table(info)->app_regs; | |
1535 | for (i = 0; i < 4; i++, p++) | |
1536 | if (p->name != NULL && ! strcmp (p->name, *namep)) | |
1537 | { | |
1538 | unsigned char type = ELF_ST_TYPE (sym->st_info); | |
1539 | ||
8f615d07 AM |
1540 | if (type > STT_FUNC) |
1541 | type = 0; | |
1542 | (*_bfd_error_handler) | |
d003868e AM |
1543 | (_("Symbol `%s' has differing types: %s in %B, previously REGISTER in %B"), |
1544 | abfd, p->abfd, *namep, stt_types[type]); | |
b34976b6 | 1545 | return FALSE; |
587ff49e RH |
1546 | } |
1547 | } | |
b34976b6 | 1548 | return TRUE; |
587ff49e RH |
1549 | } |
1550 | ||
4cc11e76 | 1551 | /* This function takes care of emitting STT_REGISTER symbols |
587ff49e RH |
1552 | which we cannot easily keep in the symbol hash table. */ |
1553 | ||
b34976b6 | 1554 | static bfd_boolean |
587ff49e | 1555 | sparc64_elf_output_arch_syms (output_bfd, info, finfo, func) |
6c08d697 | 1556 | bfd *output_bfd ATTRIBUTE_UNUSED; |
587ff49e RH |
1557 | struct bfd_link_info *info; |
1558 | PTR finfo; | |
b34976b6 | 1559 | bfd_boolean (*func) |
754021d0 AM |
1560 | PARAMS ((PTR, const char *, Elf_Internal_Sym *, asection *, |
1561 | struct elf_link_hash_entry *)); | |
587ff49e RH |
1562 | { |
1563 | int reg; | |
1564 | struct sparc64_elf_app_reg *app_regs = | |
1565 | sparc64_elf_hash_table(info)->app_regs; | |
1566 | Elf_Internal_Sym sym; | |
1567 | ||
1568 | /* We arranged in size_dynamic_sections to put the STT_REGISTER entries | |
1569 | at the end of the dynlocal list, so they came at the end of the local | |
1570 | symbols in the symtab. Except that they aren't STB_LOCAL, so we need | |
1571 | to back up symtab->sh_info. */ | |
1572 | if (elf_hash_table (info)->dynlocal) | |
1573 | { | |
1fa0ddb3 RH |
1574 | bfd * dynobj = elf_hash_table (info)->dynobj; |
1575 | asection *dynsymsec = bfd_get_section_by_name (dynobj, ".dynsym"); | |
587ff49e RH |
1576 | struct elf_link_local_dynamic_entry *e; |
1577 | ||
1578 | for (e = elf_hash_table (info)->dynlocal; e ; e = e->next) | |
1579 | if (e->input_indx == -1) | |
1580 | break; | |
1581 | if (e) | |
1582 | { | |
1583 | elf_section_data (dynsymsec->output_section)->this_hdr.sh_info | |
1584 | = e->dynindx; | |
1585 | } | |
1586 | } | |
1587 | ||
1588 | if (info->strip == strip_all) | |
b34976b6 | 1589 | return TRUE; |
587ff49e RH |
1590 | |
1591 | for (reg = 0; reg < 4; reg++) | |
1592 | if (app_regs [reg].name != NULL) | |
1593 | { | |
1594 | if (info->strip == strip_some | |
1595 | && bfd_hash_lookup (info->keep_hash, | |
1596 | app_regs [reg].name, | |
b34976b6 | 1597 | FALSE, FALSE) == NULL) |
587ff49e RH |
1598 | continue; |
1599 | ||
1600 | sym.st_value = reg < 2 ? reg + 2 : reg + 4; | |
1601 | sym.st_size = 0; | |
1602 | sym.st_other = 0; | |
1603 | sym.st_info = ELF_ST_INFO (app_regs [reg].bind, STT_REGISTER); | |
1604 | sym.st_shndx = app_regs [reg].shndx; | |
1605 | if (! (*func) (finfo, app_regs [reg].name, &sym, | |
1606 | sym.st_shndx == SHN_ABS | |
754021d0 AM |
1607 | ? bfd_abs_section_ptr : bfd_und_section_ptr, |
1608 | NULL)) | |
b34976b6 | 1609 | return FALSE; |
587ff49e RH |
1610 | } |
1611 | ||
b34976b6 | 1612 | return TRUE; |
587ff49e RH |
1613 | } |
1614 | ||
1615 | static int | |
1616 | sparc64_elf_get_symbol_type (elf_sym, type) | |
1617 | Elf_Internal_Sym * elf_sym; | |
1618 | int type; | |
1619 | { | |
1620 | if (ELF_ST_TYPE (elf_sym->st_info) == STT_REGISTER) | |
1621 | return STT_REGISTER; | |
1622 | else | |
1623 | return type; | |
1624 | } | |
1625 | ||
1626 | /* A STB_GLOBAL,STT_REGISTER symbol should be BSF_GLOBAL | |
1627 | even in SHN_UNDEF section. */ | |
1628 | ||
1629 | static void | |
1630 | sparc64_elf_symbol_processing (abfd, asym) | |
6c08d697 | 1631 | bfd *abfd ATTRIBUTE_UNUSED; |
587ff49e RH |
1632 | asymbol *asym; |
1633 | { | |
1634 | elf_symbol_type *elfsym; | |
1635 | ||
1636 | elfsym = (elf_symbol_type *) asym; | |
1637 | if (elfsym->internal_elf_sym.st_info | |
1638 | == ELF_ST_INFO (STB_GLOBAL, STT_REGISTER)) | |
1639 | { | |
1640 | asym->flags |= BSF_GLOBAL; | |
1641 | } | |
1642 | } | |
1643 | ||
252b5132 RH |
1644 | /* Adjust a symbol defined by a dynamic object and referenced by a |
1645 | regular object. The current definition is in some section of the | |
1646 | dynamic object, but we're not including those sections. We have to | |
1647 | change the definition to something the rest of the link can | |
1648 | understand. */ | |
1649 | ||
b34976b6 | 1650 | static bfd_boolean |
252b5132 RH |
1651 | sparc64_elf_adjust_dynamic_symbol (info, h) |
1652 | struct bfd_link_info *info; | |
1653 | struct elf_link_hash_entry *h; | |
1654 | { | |
1655 | bfd *dynobj; | |
1656 | asection *s; | |
1657 | unsigned int power_of_two; | |
1658 | ||
1659 | dynobj = elf_hash_table (info)->dynobj; | |
1660 | ||
1661 | /* Make sure we know what is going on here. */ | |
1662 | BFD_ASSERT (dynobj != NULL | |
f5385ebf | 1663 | && (h->needs_plt |
f6e332e6 | 1664 | || h->u.weakdef != NULL |
f5385ebf AM |
1665 | || (h->def_dynamic |
1666 | && h->ref_regular | |
1667 | && !h->def_regular))); | |
252b5132 RH |
1668 | |
1669 | /* If this is a function, put it in the procedure linkage table. We | |
1670 | will fill in the contents of the procedure linkage table later | |
1671 | (although we could actually do it here). The STT_NOTYPE | |
1672 | condition is a hack specifically for the Oracle libraries | |
1673 | delivered for Solaris; for some inexplicable reason, they define | |
1674 | some of their functions as STT_NOTYPE when they really should be | |
1675 | STT_FUNC. */ | |
1676 | if (h->type == STT_FUNC | |
f5385ebf | 1677 | || h->needs_plt |
252b5132 RH |
1678 | || (h->type == STT_NOTYPE |
1679 | && (h->root.type == bfd_link_hash_defined | |
1680 | || h->root.type == bfd_link_hash_defweak) | |
1681 | && (h->root.u.def.section->flags & SEC_CODE) != 0)) | |
1682 | { | |
669460c7 EB |
1683 | if (! info->shared |
1684 | && !h->def_dynamic | |
1685 | && !h->ref_dynamic | |
1686 | && h->root.type != bfd_link_hash_undefweak | |
1687 | && h->root.type != bfd_link_hash_undefined) | |
252b5132 RH |
1688 | { |
1689 | /* This case can occur if we saw a WPLT30 reloc in an input | |
1690 | file, but none of the input files were dynamic objects. | |
1691 | In such a case, we don't actually need to build a | |
1692 | procedure linkage table, and we can just do a WDISP30 | |
1693 | reloc instead. */ | |
f5385ebf | 1694 | BFD_ASSERT (h->needs_plt); |
b34976b6 | 1695 | return TRUE; |
252b5132 RH |
1696 | } |
1697 | ||
1698 | s = bfd_get_section_by_name (dynobj, ".plt"); | |
1699 | BFD_ASSERT (s != NULL); | |
1700 | ||
1701 | /* The first four bit in .plt is reserved. */ | |
eea6121a AM |
1702 | if (s->size == 0) |
1703 | s->size = PLT_HEADER_SIZE; | |
252b5132 | 1704 | |
7c319a27 | 1705 | /* To simplify matters later, just store the plt index here. */ |
eea6121a | 1706 | h->plt.offset = s->size / PLT_ENTRY_SIZE; |
7c319a27 | 1707 | |
252b5132 RH |
1708 | /* If this symbol is not defined in a regular file, and we are |
1709 | not generating a shared library, then set the symbol to this | |
1710 | location in the .plt. This is required to make function | |
1711 | pointers compare as equal between the normal executable and | |
1712 | the shared library. */ | |
1713 | if (! info->shared | |
f5385ebf | 1714 | && !h->def_regular) |
252b5132 RH |
1715 | { |
1716 | h->root.u.def.section = s; | |
7c319a27 | 1717 | h->root.u.def.value = sparc64_elf_plt_entry_offset (h->plt.offset); |
252b5132 RH |
1718 | } |
1719 | ||
252b5132 | 1720 | /* Make room for this entry. */ |
eea6121a | 1721 | s->size += PLT_ENTRY_SIZE; |
252b5132 RH |
1722 | |
1723 | /* We also need to make an entry in the .rela.plt section. */ | |
1724 | ||
1725 | s = bfd_get_section_by_name (dynobj, ".rela.plt"); | |
1726 | BFD_ASSERT (s != NULL); | |
1727 | ||
eea6121a | 1728 | s->size += sizeof (Elf64_External_Rela); |
252b5132 RH |
1729 | |
1730 | /* The procedure linkage table size is bounded by the magnitude | |
1731 | of the offset we can describe in the entry. */ | |
eea6121a | 1732 | if (s->size >= (bfd_vma)1 << 32) |
252b5132 RH |
1733 | { |
1734 | bfd_set_error (bfd_error_bad_value); | |
b34976b6 | 1735 | return FALSE; |
252b5132 RH |
1736 | } |
1737 | ||
b34976b6 | 1738 | return TRUE; |
252b5132 RH |
1739 | } |
1740 | ||
1741 | /* If this is a weak symbol, and there is a real definition, the | |
1742 | processor independent code will have arranged for us to see the | |
1743 | real definition first, and we can just use the same value. */ | |
f6e332e6 | 1744 | if (h->u.weakdef != NULL) |
252b5132 | 1745 | { |
f6e332e6 AM |
1746 | BFD_ASSERT (h->u.weakdef->root.type == bfd_link_hash_defined |
1747 | || h->u.weakdef->root.type == bfd_link_hash_defweak); | |
1748 | h->root.u.def.section = h->u.weakdef->root.u.def.section; | |
1749 | h->root.u.def.value = h->u.weakdef->root.u.def.value; | |
b34976b6 | 1750 | return TRUE; |
252b5132 RH |
1751 | } |
1752 | ||
1753 | /* This is a reference to a symbol defined by a dynamic object which | |
1754 | is not a function. */ | |
1755 | ||
1756 | /* If we are creating a shared library, we must presume that the | |
1757 | only references to the symbol are via the global offset table. | |
1758 | For such cases we need not do anything here; the relocations will | |
1759 | be handled correctly by relocate_section. */ | |
1760 | if (info->shared) | |
b34976b6 | 1761 | return TRUE; |
252b5132 RH |
1762 | |
1763 | /* We must allocate the symbol in our .dynbss section, which will | |
1764 | become part of the .bss section of the executable. There will be | |
1765 | an entry for this symbol in the .dynsym section. The dynamic | |
1766 | object will contain position independent code, so all references | |
1767 | from the dynamic object to this symbol will go through the global | |
1768 | offset table. The dynamic linker will use the .dynsym entry to | |
1769 | determine the address it must put in the global offset table, so | |
1770 | both the dynamic object and the regular object will refer to the | |
1771 | same memory location for the variable. */ | |
1772 | ||
1773 | s = bfd_get_section_by_name (dynobj, ".dynbss"); | |
1774 | BFD_ASSERT (s != NULL); | |
1775 | ||
1776 | /* We must generate a R_SPARC_COPY reloc to tell the dynamic linker | |
1777 | to copy the initial value out of the dynamic object and into the | |
1778 | runtime process image. We need to remember the offset into the | |
1779 | .rel.bss section we are going to use. */ | |
1780 | if ((h->root.u.def.section->flags & SEC_ALLOC) != 0) | |
1781 | { | |
1782 | asection *srel; | |
1783 | ||
1784 | srel = bfd_get_section_by_name (dynobj, ".rela.bss"); | |
1785 | BFD_ASSERT (srel != NULL); | |
eea6121a | 1786 | srel->size += sizeof (Elf64_External_Rela); |
f5385ebf | 1787 | h->needs_copy = 1; |
252b5132 RH |
1788 | } |
1789 | ||
1790 | /* We need to figure out the alignment required for this symbol. I | |
1791 | have no idea how ELF linkers handle this. 16-bytes is the size | |
1792 | of the largest type that requires hard alignment -- long double. */ | |
1793 | power_of_two = bfd_log2 (h->size); | |
1794 | if (power_of_two > 4) | |
1795 | power_of_two = 4; | |
1796 | ||
1797 | /* Apply the required alignment. */ | |
eea6121a | 1798 | s->size = BFD_ALIGN (s->size, (bfd_size_type) (1 << power_of_two)); |
252b5132 RH |
1799 | if (power_of_two > bfd_get_section_alignment (dynobj, s)) |
1800 | { | |
1801 | if (! bfd_set_section_alignment (dynobj, s, power_of_two)) | |
b34976b6 | 1802 | return FALSE; |
252b5132 RH |
1803 | } |
1804 | ||
1805 | /* Define the symbol as being at this point in the section. */ | |
1806 | h->root.u.def.section = s; | |
eea6121a | 1807 | h->root.u.def.value = s->size; |
252b5132 RH |
1808 | |
1809 | /* Increment the section size to make room for the symbol. */ | |
eea6121a | 1810 | s->size += h->size; |
252b5132 | 1811 | |
b34976b6 | 1812 | return TRUE; |
252b5132 RH |
1813 | } |
1814 | ||
151e5294 EB |
1815 | /* Return true if the dynamic symbol for a given section should be |
1816 | omitted when creating a shared library. */ | |
1817 | ||
1818 | static bfd_boolean | |
1819 | sparc64_elf_omit_section_dynsym (bfd *output_bfd, | |
1820 | struct bfd_link_info *info, | |
1821 | asection *p) | |
1822 | { | |
1823 | /* We keep the .got section symbol so that explicit relocations | |
1824 | against the _GLOBAL_OFFSET_TABLE_ symbol emitted in PIC mode | |
1825 | can be turned into relocations against the .got symbol. */ | |
1826 | if (strcmp (p->name, ".got") == 0) | |
1827 | return FALSE; | |
1828 | ||
1829 | return _bfd_elf_link_omit_section_dynsym (output_bfd, info, p); | |
1830 | } | |
1831 | ||
252b5132 RH |
1832 | /* Set the sizes of the dynamic sections. */ |
1833 | ||
b34976b6 | 1834 | static bfd_boolean |
252b5132 RH |
1835 | sparc64_elf_size_dynamic_sections (output_bfd, info) |
1836 | bfd *output_bfd; | |
1837 | struct bfd_link_info *info; | |
1838 | { | |
1839 | bfd *dynobj; | |
1840 | asection *s; | |
b34976b6 | 1841 | bfd_boolean relplt; |
252b5132 RH |
1842 | |
1843 | dynobj = elf_hash_table (info)->dynobj; | |
1844 | BFD_ASSERT (dynobj != NULL); | |
1845 | ||
1846 | if (elf_hash_table (info)->dynamic_sections_created) | |
1847 | { | |
1848 | /* Set the contents of the .interp section to the interpreter. */ | |
36af4a4e | 1849 | if (info->executable) |
252b5132 RH |
1850 | { |
1851 | s = bfd_get_section_by_name (dynobj, ".interp"); | |
1852 | BFD_ASSERT (s != NULL); | |
eea6121a | 1853 | s->size = sizeof ELF_DYNAMIC_INTERPRETER; |
252b5132 RH |
1854 | s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER; |
1855 | } | |
1856 | } | |
1857 | else | |
1858 | { | |
1859 | /* We may have created entries in the .rela.got section. | |
1860 | However, if we are not creating the dynamic sections, we will | |
1861 | not actually use these entries. Reset the size of .rela.got, | |
1862 | which will cause it to get stripped from the output file | |
1863 | below. */ | |
a51a7930 | 1864 | s = sparc64_elf_hash_table (info)->srelgot; |
252b5132 | 1865 | if (s != NULL) |
eea6121a | 1866 | s->size = 0; |
252b5132 RH |
1867 | } |
1868 | ||
1869 | /* The check_relocs and adjust_dynamic_symbol entry points have | |
1870 | determined the sizes of the various dynamic sections. Allocate | |
1871 | memory for them. */ | |
b34976b6 | 1872 | relplt = FALSE; |
252b5132 RH |
1873 | for (s = dynobj->sections; s != NULL; s = s->next) |
1874 | { | |
1875 | const char *name; | |
b34976b6 | 1876 | bfd_boolean strip; |
252b5132 RH |
1877 | |
1878 | if ((s->flags & SEC_LINKER_CREATED) == 0) | |
1879 | continue; | |
1880 | ||
1881 | /* It's OK to base decisions on the section name, because none | |
1882 | of the dynobj section names depend upon the input files. */ | |
1883 | name = bfd_get_section_name (dynobj, s); | |
1884 | ||
b34976b6 | 1885 | strip = FALSE; |
252b5132 RH |
1886 | |
1887 | if (strncmp (name, ".rela", 5) == 0) | |
1888 | { | |
eea6121a | 1889 | if (s->size == 0) |
252b5132 RH |
1890 | { |
1891 | /* If we don't need this section, strip it from the | |
1892 | output file. This is to handle .rela.bss and | |
1893 | .rel.plt. We must create it in | |
1894 | create_dynamic_sections, because it must be created | |
1895 | before the linker maps input sections to output | |
1896 | sections. The linker does that before | |
1897 | adjust_dynamic_symbol is called, and it is that | |
1898 | function which decides whether anything needs to go | |
1899 | into these sections. */ | |
b34976b6 | 1900 | strip = TRUE; |
252b5132 RH |
1901 | } |
1902 | else | |
1903 | { | |
252b5132 | 1904 | if (strcmp (name, ".rela.plt") == 0) |
b34976b6 | 1905 | relplt = TRUE; |
252b5132 RH |
1906 | |
1907 | /* We use the reloc_count field as a counter if we need | |
1908 | to copy relocs into the output file. */ | |
1909 | s->reloc_count = 0; | |
1910 | } | |
1911 | } | |
1912 | else if (strcmp (name, ".plt") != 0 | |
1913 | && strncmp (name, ".got", 4) != 0) | |
1914 | { | |
1915 | /* It's not one of our sections, so don't allocate space. */ | |
1916 | continue; | |
1917 | } | |
1918 | ||
1919 | if (strip) | |
1920 | { | |
7f8d5fc9 | 1921 | _bfd_strip_section_from_output (info, s); |
252b5132 RH |
1922 | continue; |
1923 | } | |
1924 | ||
1925 | /* Allocate memory for the section contents. Zero the memory | |
1926 | for the benefit of .rela.plt, which has 4 unused entries | |
1927 | at the beginning, and we don't want garbage. */ | |
eea6121a AM |
1928 | s->contents = (bfd_byte *) bfd_zalloc (dynobj, s->size); |
1929 | if (s->contents == NULL && s->size != 0) | |
b34976b6 | 1930 | return FALSE; |
252b5132 RH |
1931 | } |
1932 | ||
1933 | if (elf_hash_table (info)->dynamic_sections_created) | |
1934 | { | |
1935 | /* Add some entries to the .dynamic section. We fill in the | |
1936 | values later, in sparc64_elf_finish_dynamic_sections, but we | |
1937 | must add the entries now so that we get the correct size for | |
1938 | the .dynamic section. The DT_DEBUG entry is filled in by the | |
1939 | dynamic linker and used by the debugger. */ | |
dc810e39 | 1940 | #define add_dynamic_entry(TAG, VAL) \ |
5a580b3a | 1941 | _bfd_elf_add_dynamic_entry (info, TAG, VAL) |
dc810e39 | 1942 | |
587ff49e RH |
1943 | int reg; |
1944 | struct sparc64_elf_app_reg * app_regs; | |
350836e3 | 1945 | struct elf_strtab_hash *dynstr; |
587ff49e RH |
1946 | struct elf_link_hash_table *eht = elf_hash_table (info); |
1947 | ||
36af4a4e | 1948 | if (info->executable) |
252b5132 | 1949 | { |
dc810e39 | 1950 | if (!add_dynamic_entry (DT_DEBUG, 0)) |
b34976b6 | 1951 | return FALSE; |
252b5132 RH |
1952 | } |
1953 | ||
1954 | if (relplt) | |
1955 | { | |
dc810e39 AM |
1956 | if (!add_dynamic_entry (DT_PLTGOT, 0) |
1957 | || !add_dynamic_entry (DT_PLTRELSZ, 0) | |
1958 | || !add_dynamic_entry (DT_PLTREL, DT_RELA) | |
1959 | || !add_dynamic_entry (DT_JMPREL, 0)) | |
b34976b6 | 1960 | return FALSE; |
252b5132 RH |
1961 | } |
1962 | ||
dc810e39 AM |
1963 | if (!add_dynamic_entry (DT_RELA, 0) |
1964 | || !add_dynamic_entry (DT_RELASZ, 0) | |
1965 | || !add_dynamic_entry (DT_RELAENT, sizeof (Elf64_External_Rela))) | |
b34976b6 | 1966 | return FALSE; |
252b5132 | 1967 | |
db6751f2 | 1968 | if (info->flags & DF_TEXTREL) |
252b5132 | 1969 | { |
dc810e39 | 1970 | if (!add_dynamic_entry (DT_TEXTREL, 0)) |
b34976b6 | 1971 | return FALSE; |
252b5132 | 1972 | } |
587ff49e RH |
1973 | |
1974 | /* Add dynamic STT_REGISTER symbols and corresponding DT_SPARC_REGISTER | |
1975 | entries if needed. */ | |
1976 | app_regs = sparc64_elf_hash_table (info)->app_regs; | |
1977 | dynstr = eht->dynstr; | |
1978 | ||
1979 | for (reg = 0; reg < 4; reg++) | |
1980 | if (app_regs [reg].name != NULL) | |
1981 | { | |
1982 | struct elf_link_local_dynamic_entry *entry, *e; | |
435b1e90 | 1983 | |
dc810e39 | 1984 | if (!add_dynamic_entry (DT_SPARC_REGISTER, 0)) |
b34976b6 | 1985 | return FALSE; |
587ff49e RH |
1986 | |
1987 | entry = (struct elf_link_local_dynamic_entry *) | |
1988 | bfd_hash_allocate (&info->hash->table, sizeof (*entry)); | |
1989 | if (entry == NULL) | |
b34976b6 | 1990 | return FALSE; |
587ff49e RH |
1991 | |
1992 | /* We cheat here a little bit: the symbol will not be local, so we | |
1993 | put it at the end of the dynlocal linked list. We will fix it | |
1994 | later on, as we have to fix other fields anyway. */ | |
1995 | entry->isym.st_value = reg < 2 ? reg + 2 : reg + 4; | |
1996 | entry->isym.st_size = 0; | |
1997 | if (*app_regs [reg].name != '\0') | |
1998 | entry->isym.st_name | |
b34976b6 | 1999 | = _bfd_elf_strtab_add (dynstr, app_regs[reg].name, FALSE); |
587ff49e RH |
2000 | else |
2001 | entry->isym.st_name = 0; | |
2002 | entry->isym.st_other = 0; | |
2003 | entry->isym.st_info = ELF_ST_INFO (app_regs [reg].bind, | |
2004 | STT_REGISTER); | |
2005 | entry->isym.st_shndx = app_regs [reg].shndx; | |
2006 | entry->next = NULL; | |
2007 | entry->input_bfd = output_bfd; | |
2008 | entry->input_indx = -1; | |
2009 | ||
2010 | if (eht->dynlocal == NULL) | |
2011 | eht->dynlocal = entry; | |
2012 | else | |
2013 | { | |
2014 | for (e = eht->dynlocal; e->next; e = e->next) | |
2015 | ; | |
2016 | e->next = entry; | |
2017 | } | |
2018 | eht->dynsymcount++; | |
2019 | } | |
252b5132 | 2020 | } |
dc810e39 | 2021 | #undef add_dynamic_entry |
252b5132 | 2022 | |
b34976b6 | 2023 | return TRUE; |
252b5132 | 2024 | } |
252b5132 | 2025 | \f |
f0abc2a1 AM |
2026 | static bfd_boolean |
2027 | sparc64_elf_new_section_hook (abfd, sec) | |
2028 | bfd *abfd; | |
2029 | asection *sec; | |
2030 | { | |
2031 | struct sparc64_elf_section_data *sdata; | |
2032 | bfd_size_type amt = sizeof (*sdata); | |
2033 | ||
2034 | sdata = (struct sparc64_elf_section_data *) bfd_zalloc (abfd, amt); | |
2035 | if (sdata == NULL) | |
2036 | return FALSE; | |
2037 | sec->used_by_bfd = (PTR) sdata; | |
2038 | ||
2039 | return _bfd_elf_new_section_hook (abfd, sec); | |
2040 | } | |
f7775d95 | 2041 | |
b34976b6 | 2042 | static bfd_boolean |
f7775d95 JJ |
2043 | sparc64_elf_relax_section (abfd, section, link_info, again) |
2044 | bfd *abfd ATTRIBUTE_UNUSED; | |
2045 | asection *section ATTRIBUTE_UNUSED; | |
2046 | struct bfd_link_info *link_info ATTRIBUTE_UNUSED; | |
b34976b6 | 2047 | bfd_boolean *again; |
f7775d95 | 2048 | { |
b34976b6 | 2049 | *again = FALSE; |
f0abc2a1 | 2050 | sec_do_relax (section) = 1; |
b34976b6 | 2051 | return TRUE; |
f7775d95 JJ |
2052 | } |
2053 | \f | |
252b5132 RH |
2054 | /* Relocate a SPARC64 ELF section. */ |
2055 | ||
b34976b6 | 2056 | static bfd_boolean |
252b5132 RH |
2057 | sparc64_elf_relocate_section (output_bfd, info, input_bfd, input_section, |
2058 | contents, relocs, local_syms, local_sections) | |
2059 | bfd *output_bfd; | |
2060 | struct bfd_link_info *info; | |
2061 | bfd *input_bfd; | |
2062 | asection *input_section; | |
2063 | bfd_byte *contents; | |
2064 | Elf_Internal_Rela *relocs; | |
2065 | Elf_Internal_Sym *local_syms; | |
2066 | asection **local_sections; | |
2067 | { | |
2068 | bfd *dynobj; | |
2069 | Elf_Internal_Shdr *symtab_hdr; | |
2070 | struct elf_link_hash_entry **sym_hashes; | |
2071 | bfd_vma *local_got_offsets; | |
2072 | bfd_vma got_base; | |
2073 | asection *sgot; | |
2074 | asection *splt; | |
2075 | asection *sreloc; | |
2076 | Elf_Internal_Rela *rel; | |
2077 | Elf_Internal_Rela *relend; | |
2078 | ||
1049f94e | 2079 | if (info->relocatable) |
b34976b6 | 2080 | return TRUE; |
f0fe0e16 | 2081 | |
252b5132 RH |
2082 | dynobj = elf_hash_table (info)->dynobj; |
2083 | symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr; | |
2084 | sym_hashes = elf_sym_hashes (input_bfd); | |
2085 | local_got_offsets = elf_local_got_offsets (input_bfd); | |
2086 | ||
2087 | if (elf_hash_table(info)->hgot == NULL) | |
2088 | got_base = 0; | |
2089 | else | |
2090 | got_base = elf_hash_table (info)->hgot->root.u.def.value; | |
2091 | ||
019b892f AM |
2092 | sgot = splt = sreloc = NULL; |
2093 | if (dynobj != NULL) | |
2094 | splt = bfd_get_section_by_name (dynobj, ".plt"); | |
252b5132 RH |
2095 | |
2096 | rel = relocs; | |
e90fdc1a | 2097 | relend = relocs + NUM_SHDR_ENTRIES (& elf_section_data (input_section)->rel_hdr); |
252b5132 RH |
2098 | for (; rel < relend; rel++) |
2099 | { | |
2100 | int r_type; | |
2101 | reloc_howto_type *howto; | |
6c08d697 | 2102 | unsigned long r_symndx; |
252b5132 RH |
2103 | struct elf_link_hash_entry *h; |
2104 | Elf_Internal_Sym *sym; | |
2105 | asection *sec; | |
e36f7d53 | 2106 | bfd_vma relocation, off; |
252b5132 | 2107 | bfd_reloc_status_type r; |
b34976b6 AM |
2108 | bfd_boolean is_plt = FALSE; |
2109 | bfd_boolean unresolved_reloc; | |
252b5132 | 2110 | |
f65054f7 | 2111 | r_type = ELF64_R_TYPE_ID (rel->r_info); |
60dac299 | 2112 | if (r_type < 0 || r_type >= (int) R_SPARC_max_std) |
252b5132 RH |
2113 | { |
2114 | bfd_set_error (bfd_error_bad_value); | |
b34976b6 | 2115 | return FALSE; |
252b5132 RH |
2116 | } |
2117 | howto = sparc64_elf_howto_table + r_type; | |
2118 | ||
252b5132 | 2119 | /* This is a final link. */ |
f0fe0e16 | 2120 | r_symndx = ELF64_R_SYM (rel->r_info); |
252b5132 RH |
2121 | h = NULL; |
2122 | sym = NULL; | |
2123 | sec = NULL; | |
b34976b6 | 2124 | unresolved_reloc = FALSE; |
252b5132 RH |
2125 | if (r_symndx < symtab_hdr->sh_info) |
2126 | { | |
2127 | sym = local_syms + r_symndx; | |
2128 | sec = local_sections[r_symndx]; | |
8517fae7 | 2129 | relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel); |
252b5132 RH |
2130 | } |
2131 | else | |
2132 | { | |
560e09e9 | 2133 | bfd_boolean warned; |
e36f7d53 | 2134 | |
b2a8e766 AM |
2135 | RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel, |
2136 | r_symndx, symtab_hdr, sym_hashes, | |
2137 | h, sec, relocation, | |
2138 | unresolved_reloc, warned); | |
560e09e9 | 2139 | if (warned) |
252b5132 | 2140 | { |
be040dbb JJ |
2141 | /* To avoid generating warning messages about truncated |
2142 | relocations, set the relocation's address to be the same as | |
2143 | the start of this section. */ | |
be040dbb JJ |
2144 | if (input_section->output_section != NULL) |
2145 | relocation = input_section->output_section->vma; | |
2146 | else | |
2147 | relocation = 0; | |
252b5132 RH |
2148 | } |
2149 | } | |
2150 | ||
e36f7d53 | 2151 | do_dynreloc: |
252b5132 RH |
2152 | /* When generating a shared object, these relocations are copied |
2153 | into the output file to be resolved at run time. */ | |
ec338859 | 2154 | if (info->shared && r_symndx != 0 && (input_section->flags & SEC_ALLOC)) |
252b5132 RH |
2155 | { |
2156 | switch (r_type) | |
2157 | { | |
2158 | case R_SPARC_PC10: | |
2159 | case R_SPARC_PC22: | |
2160 | case R_SPARC_PC_HH22: | |
2161 | case R_SPARC_PC_HM10: | |
2162 | case R_SPARC_PC_LM22: | |
2163 | if (h != NULL | |
2164 | && !strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_")) | |
2165 | break; | |
2166 | /* Fall through. */ | |
2167 | case R_SPARC_DISP8: | |
2168 | case R_SPARC_DISP16: | |
2169 | case R_SPARC_DISP32: | |
b88a866a | 2170 | case R_SPARC_DISP64: |
252b5132 RH |
2171 | case R_SPARC_WDISP30: |
2172 | case R_SPARC_WDISP22: | |
2173 | case R_SPARC_WDISP19: | |
2174 | case R_SPARC_WDISP16: | |
252b5132 RH |
2175 | if (h == NULL) |
2176 | break; | |
2177 | /* Fall through. */ | |
2178 | case R_SPARC_8: | |
2179 | case R_SPARC_16: | |
2180 | case R_SPARC_32: | |
2181 | case R_SPARC_HI22: | |
2182 | case R_SPARC_22: | |
2183 | case R_SPARC_13: | |
2184 | case R_SPARC_LO10: | |
2185 | case R_SPARC_UA32: | |
2186 | case R_SPARC_10: | |
2187 | case R_SPARC_11: | |
2188 | case R_SPARC_64: | |
2189 | case R_SPARC_OLO10: | |
2190 | case R_SPARC_HH22: | |
2191 | case R_SPARC_HM10: | |
2192 | case R_SPARC_LM22: | |
2193 | case R_SPARC_7: | |
2194 | case R_SPARC_5: | |
2195 | case R_SPARC_6: | |
2196 | case R_SPARC_HIX22: | |
2197 | case R_SPARC_LOX10: | |
2198 | case R_SPARC_H44: | |
2199 | case R_SPARC_M44: | |
2200 | case R_SPARC_L44: | |
2201 | case R_SPARC_UA64: | |
2202 | case R_SPARC_UA16: | |
2203 | { | |
2204 | Elf_Internal_Rela outrel; | |
947216bf | 2205 | bfd_byte *loc; |
b34976b6 | 2206 | bfd_boolean skip, relocate; |
252b5132 RH |
2207 | |
2208 | if (sreloc == NULL) | |
2209 | { | |
2210 | const char *name = | |
2211 | (bfd_elf_string_from_elf_section | |
2212 | (input_bfd, | |
2213 | elf_elfheader (input_bfd)->e_shstrndx, | |
2214 | elf_section_data (input_section)->rel_hdr.sh_name)); | |
2215 | ||
2216 | if (name == NULL) | |
b34976b6 | 2217 | return FALSE; |
252b5132 RH |
2218 | |
2219 | BFD_ASSERT (strncmp (name, ".rela", 5) == 0 | |
2220 | && strcmp (bfd_get_section_name(input_bfd, | |
2221 | input_section), | |
2222 | name + 5) == 0); | |
2223 | ||
2224 | sreloc = bfd_get_section_by_name (dynobj, name); | |
2225 | BFD_ASSERT (sreloc != NULL); | |
2226 | } | |
2227 | ||
b34976b6 AM |
2228 | skip = FALSE; |
2229 | relocate = FALSE; | |
252b5132 | 2230 | |
c629eae0 JJ |
2231 | outrel.r_offset = |
2232 | _bfd_elf_section_offset (output_bfd, info, input_section, | |
2233 | rel->r_offset); | |
2234 | if (outrel.r_offset == (bfd_vma) -1) | |
b34976b6 | 2235 | skip = TRUE; |
0bb2d96a | 2236 | else if (outrel.r_offset == (bfd_vma) -2) |
b34976b6 | 2237 | skip = TRUE, relocate = TRUE; |
252b5132 RH |
2238 | |
2239 | outrel.r_offset += (input_section->output_section->vma | |
2240 | + input_section->output_offset); | |
2241 | ||
2242 | /* Optimize unaligned reloc usage now that we know where | |
2243 | it finally resides. */ | |
2244 | switch (r_type) | |
2245 | { | |
2246 | case R_SPARC_16: | |
2247 | if (outrel.r_offset & 1) r_type = R_SPARC_UA16; | |
2248 | break; | |
2249 | case R_SPARC_UA16: | |
2250 | if (!(outrel.r_offset & 1)) r_type = R_SPARC_16; | |
2251 | break; | |
2252 | case R_SPARC_32: | |
2253 | if (outrel.r_offset & 3) r_type = R_SPARC_UA32; | |
2254 | break; | |
2255 | case R_SPARC_UA32: | |
2256 | if (!(outrel.r_offset & 3)) r_type = R_SPARC_32; | |
2257 | break; | |
2258 | case R_SPARC_64: | |
2259 | if (outrel.r_offset & 7) r_type = R_SPARC_UA64; | |
2260 | break; | |
2261 | case R_SPARC_UA64: | |
2262 | if (!(outrel.r_offset & 7)) r_type = R_SPARC_64; | |
2263 | break; | |
b88a866a JJ |
2264 | case R_SPARC_DISP8: |
2265 | case R_SPARC_DISP16: | |
2266 | case R_SPARC_DISP32: | |
2267 | case R_SPARC_DISP64: | |
2268 | /* If the symbol is not dynamic, we should not keep | |
2269 | a dynamic relocation. But an .rela.* slot has been | |
2270 | allocated for it, output R_SPARC_NONE. | |
2271 | FIXME: Add code tracking needed dynamic relocs as | |
2272 | e.g. i386 has. */ | |
2273 | if (h->dynindx == -1) | |
b34976b6 | 2274 | skip = TRUE, relocate = TRUE; |
b88a866a | 2275 | break; |
252b5132 RH |
2276 | } |
2277 | ||
4dc570c2 JJ |
2278 | /* FIXME: Dynamic reloc handling really needs to be rewritten. */ |
2279 | if (!skip | |
2280 | && h != NULL | |
2281 | && ELF_ST_VISIBILITY (h->other) != STV_DEFAULT | |
2282 | && h->root.type == bfd_link_hash_undefweak) | |
2283 | skip = TRUE, relocate = TRUE; | |
2284 | ||
252b5132 RH |
2285 | if (skip) |
2286 | memset (&outrel, 0, sizeof outrel); | |
2287 | /* h->dynindx may be -1 if the symbol was marked to | |
2288 | become local. */ | |
bd5e6e7e | 2289 | else if (h != NULL && ! is_plt |
252b5132 | 2290 | && ((! info->symbolic && h->dynindx != -1) |
f5385ebf | 2291 | || !h->def_regular)) |
252b5132 RH |
2292 | { |
2293 | BFD_ASSERT (h->dynindx != -1); | |
f65054f7 RH |
2294 | outrel.r_info |
2295 | = ELF64_R_INFO (h->dynindx, | |
2296 | ELF64_R_TYPE_INFO ( | |
2297 | ELF64_R_TYPE_DATA (rel->r_info), | |
2298 | r_type)); | |
252b5132 RH |
2299 | outrel.r_addend = rel->r_addend; |
2300 | } | |
2301 | else | |
2302 | { | |
dad62816 | 2303 | outrel.r_addend = relocation + rel->r_addend; |
252b5132 | 2304 | if (r_type == R_SPARC_64) |
dad62816 | 2305 | outrel.r_info = ELF64_R_INFO (0, R_SPARC_RELATIVE); |
252b5132 RH |
2306 | else |
2307 | { | |
2308 | long indx; | |
2309 | ||
bd5e6e7e JJ |
2310 | if (is_plt) |
2311 | sec = splt; | |
8517fae7 AM |
2312 | |
2313 | if (bfd_is_abs_section (sec)) | |
252b5132 RH |
2314 | indx = 0; |
2315 | else if (sec == NULL || sec->owner == NULL) | |
2316 | { | |
2317 | bfd_set_error (bfd_error_bad_value); | |
b34976b6 | 2318 | return FALSE; |
252b5132 RH |
2319 | } |
2320 | else | |
2321 | { | |
2322 | asection *osec; | |
2323 | ||
2324 | osec = sec->output_section; | |
2325 | indx = elf_section_data (osec)->dynindx; | |
2326 | ||
dad62816 AM |
2327 | /* We are turning this relocation into one |
2328 | against a section symbol, so subtract out | |
2329 | the output section's address but not the | |
2330 | offset of the input section in the output | |
2331 | section. */ | |
2332 | outrel.r_addend -= osec->vma; | |
2333 | ||
252b5132 RH |
2334 | /* FIXME: we really should be able to link non-pic |
2335 | shared libraries. */ | |
2336 | if (indx == 0) | |
2337 | { | |
2338 | BFD_FAIL (); | |
2339 | (*_bfd_error_handler) | |
d003868e AM |
2340 | (_("%B: probably compiled without -fPIC?"), |
2341 | input_bfd); | |
252b5132 | 2342 | bfd_set_error (bfd_error_bad_value); |
b34976b6 | 2343 | return FALSE; |
252b5132 RH |
2344 | } |
2345 | } | |
2346 | ||
f65054f7 RH |
2347 | outrel.r_info |
2348 | = ELF64_R_INFO (indx, | |
2349 | ELF64_R_TYPE_INFO ( | |
2350 | ELF64_R_TYPE_DATA (rel->r_info), | |
2351 | r_type)); | |
252b5132 RH |
2352 | } |
2353 | } | |
2354 | ||
947216bf AM |
2355 | loc = sreloc->contents; |
2356 | loc += sreloc->reloc_count++ * sizeof (Elf64_External_Rela); | |
2357 | bfd_elf64_swap_reloca_out (output_bfd, &outrel, loc); | |
252b5132 RH |
2358 | |
2359 | /* This reloc will be computed at runtime, so there's no | |
20278fa3 | 2360 | need to do anything now. */ |
0bb2d96a JJ |
2361 | if (! relocate) |
2362 | continue; | |
252b5132 RH |
2363 | } |
2364 | break; | |
2365 | } | |
2366 | } | |
2367 | ||
2368 | switch (r_type) | |
2369 | { | |
2370 | case R_SPARC_GOT10: | |
2371 | case R_SPARC_GOT13: | |
2372 | case R_SPARC_GOT22: | |
2373 | /* Relocation is to the entry for this symbol in the global | |
2374 | offset table. */ | |
2375 | if (sgot == NULL) | |
2376 | { | |
a51a7930 | 2377 | sgot = sparc64_elf_hash_table (info)->sgot; |
252b5132 RH |
2378 | BFD_ASSERT (sgot != NULL); |
2379 | } | |
2380 | ||
2381 | if (h != NULL) | |
2382 | { | |
b34976b6 | 2383 | bfd_boolean dyn; |
e36f7d53 RH |
2384 | |
2385 | off = h->got.offset; | |
252b5132 | 2386 | BFD_ASSERT (off != (bfd_vma) -1); |
e36f7d53 | 2387 | dyn = elf_hash_table (info)->dynamic_sections_created; |
252b5132 | 2388 | |
c152c796 | 2389 | if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared, h) |
252b5132 | 2390 | || (info->shared |
e36f7d53 RH |
2391 | && (info->symbolic |
2392 | || h->dynindx == -1 | |
f5385ebf AM |
2393 | || h->forced_local) |
2394 | && h->def_regular)) | |
252b5132 RH |
2395 | { |
2396 | /* This is actually a static link, or it is a -Bsymbolic | |
2397 | link and the symbol is defined locally, or the symbol | |
2398 | was forced to be local because of a version file. We | |
2399 | must initialize this entry in the global offset table. | |
2400 | Since the offset must always be a multiple of 8, we | |
2401 | use the least significant bit to record whether we | |
2402 | have initialized it already. | |
2403 | ||
2404 | When doing a dynamic link, we create a .rela.got | |
2405 | relocation entry to initialize the value. This is | |
2406 | done in the finish_dynamic_symbol routine. */ | |
2407 | ||
2408 | if ((off & 1) != 0) | |
2409 | off &= ~1; | |
2410 | else | |
2411 | { | |
2412 | bfd_put_64 (output_bfd, relocation, | |
2413 | sgot->contents + off); | |
2414 | h->got.offset |= 1; | |
2415 | } | |
2416 | } | |
e36f7d53 | 2417 | else |
b34976b6 | 2418 | unresolved_reloc = FALSE; |
252b5132 RH |
2419 | } |
2420 | else | |
2421 | { | |
252b5132 RH |
2422 | BFD_ASSERT (local_got_offsets != NULL); |
2423 | off = local_got_offsets[r_symndx]; | |
2424 | BFD_ASSERT (off != (bfd_vma) -1); | |
2425 | ||
2426 | /* The offset must always be a multiple of 8. We use | |
2427 | the least significant bit to record whether we have | |
2428 | already processed this entry. */ | |
2429 | if ((off & 1) != 0) | |
2430 | off &= ~1; | |
2431 | else | |
2432 | { | |
252b5132 RH |
2433 | local_got_offsets[r_symndx] |= 1; |
2434 | ||
2435 | if (info->shared) | |
2436 | { | |
947216bf | 2437 | asection *s; |
252b5132 | 2438 | Elf_Internal_Rela outrel; |
947216bf | 2439 | bfd_byte *loc; |
252b5132 | 2440 | |
ea5fbc67 GK |
2441 | /* The Solaris 2.7 64-bit linker adds the contents |
2442 | of the location to the value of the reloc. | |
2443 | Note this is different behaviour to the | |
2444 | 32-bit linker, which both adds the contents | |
2445 | and ignores the addend. So clear the location. */ | |
dc810e39 AM |
2446 | bfd_put_64 (output_bfd, (bfd_vma) 0, |
2447 | sgot->contents + off); | |
435b1e90 | 2448 | |
252b5132 RH |
2449 | /* We need to generate a R_SPARC_RELATIVE reloc |
2450 | for the dynamic linker. */ | |
a51a7930 | 2451 | s = sparc64_elf_hash_table (info)->srelgot; |
947216bf | 2452 | BFD_ASSERT (s != NULL); |
252b5132 RH |
2453 | |
2454 | outrel.r_offset = (sgot->output_section->vma | |
2455 | + sgot->output_offset | |
2456 | + off); | |
2457 | outrel.r_info = ELF64_R_INFO (0, R_SPARC_RELATIVE); | |
2458 | outrel.r_addend = relocation; | |
947216bf AM |
2459 | loc = s->contents; |
2460 | loc += s->reloc_count++ * sizeof (Elf64_External_Rela); | |
2461 | bfd_elf64_swap_reloca_out (output_bfd, &outrel, loc); | |
252b5132 | 2462 | } |
ea5fbc67 GK |
2463 | else |
2464 | bfd_put_64 (output_bfd, relocation, sgot->contents + off); | |
252b5132 | 2465 | } |
252b5132 | 2466 | } |
e36f7d53 | 2467 | relocation = sgot->output_offset + off - got_base; |
252b5132 RH |
2468 | goto do_default; |
2469 | ||
2470 | case R_SPARC_WPLT30: | |
2471 | case R_SPARC_PLT32: | |
2472 | case R_SPARC_HIPLT22: | |
2473 | case R_SPARC_LOPLT10: | |
2474 | case R_SPARC_PCPLT32: | |
2475 | case R_SPARC_PCPLT22: | |
2476 | case R_SPARC_PCPLT10: | |
2477 | case R_SPARC_PLT64: | |
2478 | /* Relocation is to the entry for this symbol in the | |
2479 | procedure linkage table. */ | |
2480 | BFD_ASSERT (h != NULL); | |
2481 | ||
6de00a78 | 2482 | if (h->plt.offset == (bfd_vma) -1 || splt == NULL) |
252b5132 RH |
2483 | { |
2484 | /* We didn't make a PLT entry for this symbol. This | |
2485 | happens when statically linking PIC code, or when | |
2486 | using -Bsymbolic. */ | |
2487 | goto do_default; | |
2488 | } | |
2489 | ||
252b5132 RH |
2490 | relocation = (splt->output_section->vma |
2491 | + splt->output_offset | |
2492 | + sparc64_elf_plt_entry_offset (h->plt.offset)); | |
b34976b6 | 2493 | unresolved_reloc = FALSE; |
f7775d95 JJ |
2494 | if (r_type == R_SPARC_WPLT30) |
2495 | goto do_wplt30; | |
bd5e6e7e JJ |
2496 | if (r_type == R_SPARC_PLT32 || r_type == R_SPARC_PLT64) |
2497 | { | |
2498 | r_type = r_type == R_SPARC_PLT32 ? R_SPARC_32 : R_SPARC_64; | |
b34976b6 | 2499 | is_plt = TRUE; |
bd5e6e7e JJ |
2500 | goto do_dynreloc; |
2501 | } | |
252b5132 RH |
2502 | goto do_default; |
2503 | ||
2504 | case R_SPARC_OLO10: | |
2505 | { | |
2506 | bfd_vma x; | |
2507 | ||
2508 | relocation += rel->r_addend; | |
2509 | relocation = (relocation & 0x3ff) + ELF64_R_TYPE_DATA (rel->r_info); | |
2510 | ||
2511 | x = bfd_get_32 (input_bfd, contents + rel->r_offset); | |
dc810e39 | 2512 | x = (x & ~(bfd_vma) 0x1fff) | (relocation & 0x1fff); |
252b5132 RH |
2513 | bfd_put_32 (input_bfd, x, contents + rel->r_offset); |
2514 | ||
2515 | r = bfd_check_overflow (howto->complain_on_overflow, | |
2516 | howto->bitsize, howto->rightshift, | |
2517 | bfd_arch_bits_per_address (input_bfd), | |
2518 | relocation); | |
2519 | } | |
2520 | break; | |
2521 | ||
2522 | case R_SPARC_WDISP16: | |
2523 | { | |
2524 | bfd_vma x; | |
2525 | ||
2526 | relocation += rel->r_addend; | |
2527 | /* Adjust for pc-relative-ness. */ | |
2528 | relocation -= (input_section->output_section->vma | |
2529 | + input_section->output_offset); | |
2530 | relocation -= rel->r_offset; | |
2531 | ||
2532 | x = bfd_get_32 (input_bfd, contents + rel->r_offset); | |
dc810e39 AM |
2533 | x &= ~(bfd_vma) 0x303fff; |
2534 | x |= ((((relocation >> 2) & 0xc000) << 6) | |
2535 | | ((relocation >> 2) & 0x3fff)); | |
252b5132 RH |
2536 | bfd_put_32 (input_bfd, x, contents + rel->r_offset); |
2537 | ||
2538 | r = bfd_check_overflow (howto->complain_on_overflow, | |
2539 | howto->bitsize, howto->rightshift, | |
2540 | bfd_arch_bits_per_address (input_bfd), | |
2541 | relocation); | |
2542 | } | |
2543 | break; | |
2544 | ||
2545 | case R_SPARC_HIX22: | |
2546 | { | |
2547 | bfd_vma x; | |
2548 | ||
2549 | relocation += rel->r_addend; | |
2550 | relocation = relocation ^ MINUS_ONE; | |
2551 | ||
2552 | x = bfd_get_32 (input_bfd, contents + rel->r_offset); | |
dc810e39 | 2553 | x = (x & ~(bfd_vma) 0x3fffff) | ((relocation >> 10) & 0x3fffff); |
252b5132 RH |
2554 | bfd_put_32 (input_bfd, x, contents + rel->r_offset); |
2555 | ||
2556 | r = bfd_check_overflow (howto->complain_on_overflow, | |
2557 | howto->bitsize, howto->rightshift, | |
2558 | bfd_arch_bits_per_address (input_bfd), | |
2559 | relocation); | |
2560 | } | |
2561 | break; | |
2562 | ||
2563 | case R_SPARC_LOX10: | |
2564 | { | |
2565 | bfd_vma x; | |
2566 | ||
2567 | relocation += rel->r_addend; | |
2568 | relocation = (relocation & 0x3ff) | 0x1c00; | |
2569 | ||
2570 | x = bfd_get_32 (input_bfd, contents + rel->r_offset); | |
dc810e39 | 2571 | x = (x & ~(bfd_vma) 0x1fff) | relocation; |
252b5132 RH |
2572 | bfd_put_32 (input_bfd, x, contents + rel->r_offset); |
2573 | ||
2574 | r = bfd_reloc_ok; | |
2575 | } | |
2576 | break; | |
2577 | ||
f7775d95 JJ |
2578 | case R_SPARC_WDISP30: |
2579 | do_wplt30: | |
f0abc2a1 | 2580 | if (sec_do_relax (input_section) |
eea6121a | 2581 | && rel->r_offset + 4 < input_section->size) |
f7775d95 JJ |
2582 | { |
2583 | #define G0 0 | |
2584 | #define O7 15 | |
2585 | #define XCC (2 << 20) | |
2586 | #define COND(x) (((x)&0xf)<<25) | |
2587 | #define CONDA COND(0x8) | |
2588 | #define INSN_BPA (F2(0,1) | CONDA | BPRED | XCC) | |
2589 | #define INSN_BA (F2(0,2) | CONDA) | |
2590 | #define INSN_OR F3(2, 0x2, 0) | |
2591 | #define INSN_NOP F2(0,4) | |
2592 | ||
2593 | bfd_vma x, y; | |
2594 | ||
2595 | /* If the instruction is a call with either: | |
2596 | restore | |
2597 | arithmetic instruction with rd == %o7 | |
2598 | where rs1 != %o7 and rs2 if it is register != %o7 | |
2599 | then we can optimize if the call destination is near | |
2600 | by changing the call into a branch always. */ | |
2601 | x = bfd_get_32 (input_bfd, contents + rel->r_offset); | |
2602 | y = bfd_get_32 (input_bfd, contents + rel->r_offset + 4); | |
2603 | if ((x & OP(~0)) == OP(1) && (y & OP(~0)) == OP(2)) | |
2604 | { | |
2605 | if (((y & OP3(~0)) == OP3(0x3d) /* restore */ | |
2606 | || ((y & OP3(0x28)) == 0 /* arithmetic */ | |
2607 | && (y & RD(~0)) == RD(O7))) | |
2608 | && (y & RS1(~0)) != RS1(O7) | |
2609 | && ((y & F3I(~0)) | |
2610 | || (y & RS2(~0)) != RS2(O7))) | |
2611 | { | |
2612 | bfd_vma reloc; | |
2613 | ||
2614 | reloc = relocation + rel->r_addend - rel->r_offset; | |
2615 | reloc -= (input_section->output_section->vma | |
2616 | + input_section->output_offset); | |
2617 | if (reloc & 3) | |
2618 | goto do_default; | |
2619 | ||
2620 | /* Ensure the branch fits into simm22. */ | |
2621 | if ((reloc & ~(bfd_vma)0x7fffff) | |
2622 | && ((reloc | 0x7fffff) != MINUS_ONE)) | |
2623 | goto do_default; | |
2624 | reloc >>= 2; | |
2625 | ||
2626 | /* Check whether it fits into simm19. */ | |
2627 | if ((reloc & 0x3c0000) == 0 | |
2628 | || (reloc & 0x3c0000) == 0x3c0000) | |
2629 | x = INSN_BPA | (reloc & 0x7ffff); /* ba,pt %xcc */ | |
2630 | else | |
2631 | x = INSN_BA | (reloc & 0x3fffff); /* ba */ | |
2632 | bfd_put_32 (input_bfd, x, contents + rel->r_offset); | |
2633 | r = bfd_reloc_ok; | |
2634 | if (rel->r_offset >= 4 | |
2635 | && (y & (0xffffffff ^ RS1(~0))) | |
2636 | == (INSN_OR | RD(O7) | RS2(G0))) | |
2637 | { | |
2638 | bfd_vma z; | |
2639 | unsigned int reg; | |
2640 | ||
2641 | z = bfd_get_32 (input_bfd, | |
2642 | contents + rel->r_offset - 4); | |
2643 | if ((z & (0xffffffff ^ RD(~0))) | |
2644 | != (INSN_OR | RS1(O7) | RS2(G0))) | |
2645 | break; | |
2646 | ||
2647 | /* The sequence was | |
2648 | or %o7, %g0, %rN | |
2649 | call foo | |
2650 | or %rN, %g0, %o7 | |
2651 | ||
2652 | If call foo was replaced with ba, replace | |
2653 | or %rN, %g0, %o7 with nop. */ | |
2654 | ||
2655 | reg = (y & RS1(~0)) >> 14; | |
2656 | if (reg != ((z & RD(~0)) >> 25) | |
2657 | || reg == G0 || reg == O7) | |
2658 | break; | |
2659 | ||
dc810e39 | 2660 | bfd_put_32 (input_bfd, (bfd_vma) INSN_NOP, |
f7775d95 JJ |
2661 | contents + rel->r_offset + 4); |
2662 | } | |
2663 | break; | |
2664 | } | |
2665 | } | |
2666 | } | |
ae9a127f | 2667 | /* Fall through. */ |
f7775d95 | 2668 | |
252b5132 RH |
2669 | default: |
2670 | do_default: | |
2671 | r = _bfd_final_link_relocate (howto, input_bfd, input_section, | |
2672 | contents, rel->r_offset, | |
2673 | relocation, rel->r_addend); | |
2674 | break; | |
2675 | } | |
2676 | ||
239e1f3a AM |
2677 | /* Dynamic relocs are not propagated for SEC_DEBUGGING sections |
2678 | because such sections are not SEC_ALLOC and thus ld.so will | |
2679 | not process them. */ | |
e36f7d53 | 2680 | if (unresolved_reloc |
239e1f3a | 2681 | && !((input_section->flags & SEC_DEBUGGING) != 0 |
f5385ebf | 2682 | && h->def_dynamic)) |
e36f7d53 | 2683 | (*_bfd_error_handler) |
d003868e AM |
2684 | (_("%B(%A+0x%lx): unresolvable relocation against symbol `%s'"), |
2685 | input_bfd, input_section, | |
e36f7d53 RH |
2686 | (long) rel->r_offset, |
2687 | h->root.root.string); | |
2688 | ||
252b5132 RH |
2689 | switch (r) |
2690 | { | |
2691 | case bfd_reloc_ok: | |
2692 | break; | |
2693 | ||
2694 | default: | |
2695 | case bfd_reloc_outofrange: | |
2696 | abort (); | |
2697 | ||
2698 | case bfd_reloc_overflow: | |
2699 | { | |
2700 | const char *name; | |
2701 | ||
6361c4c9 AO |
2702 | /* The Solaris native linker silently disregards |
2703 | overflows. We don't, but this breaks stabs debugging | |
2704 | info, whose relocations are only 32-bits wide. Ignore | |
8af139b3 | 2705 | overflows in this case and also for discarded entries. */ |
83615de0 | 2706 | if ((r_type == R_SPARC_32 || r_type == R_SPARC_DISP32) |
8af139b3 EB |
2707 | && (((input_section->flags & SEC_DEBUGGING) != 0 |
2708 | && strcmp (bfd_section_name (input_bfd, input_section), | |
2709 | ".stab") == 0) | |
2710 | || _bfd_elf_section_offset (output_bfd, info, | |
2711 | input_section, | |
2712 | rel->r_offset) == (bfd_vma)-1)) | |
6361c4c9 AO |
2713 | break; |
2714 | ||
252b5132 RH |
2715 | if (h != NULL) |
2716 | { | |
2717 | if (h->root.type == bfd_link_hash_undefweak | |
2718 | && howto->pc_relative) | |
2719 | { | |
2720 | /* Assume this is a call protected by other code that | |
2721 | detect the symbol is undefined. If this is the case, | |
435b1e90 | 2722 | we can safely ignore the overflow. If not, the |
252b5132 RH |
2723 | program is hosed anyway, and a little warning isn't |
2724 | going to help. */ | |
2725 | break; | |
2726 | } | |
435b1e90 | 2727 | |
dfeffb9f | 2728 | name = NULL; |
252b5132 RH |
2729 | } |
2730 | else | |
2731 | { | |
2732 | name = (bfd_elf_string_from_elf_section | |
2733 | (input_bfd, | |
2734 | symtab_hdr->sh_link, | |
2735 | sym->st_name)); | |
2736 | if (name == NULL) | |
b34976b6 | 2737 | return FALSE; |
252b5132 RH |
2738 | if (*name == '\0') |
2739 | name = bfd_section_name (input_bfd, sec); | |
2740 | } | |
2741 | if (! ((*info->callbacks->reloc_overflow) | |
dfeffb9f L |
2742 | (info, (h ? &h->root : NULL), name, howto->name, |
2743 | (bfd_vma) 0, input_bfd, input_section, | |
2744 | rel->r_offset))) | |
b34976b6 | 2745 | return FALSE; |
252b5132 RH |
2746 | } |
2747 | break; | |
2748 | } | |
2749 | } | |
2750 | ||
b34976b6 | 2751 | return TRUE; |
252b5132 RH |
2752 | } |
2753 | ||
2754 | /* Finish up dynamic symbol handling. We set the contents of various | |
2755 | dynamic sections here. */ | |
2756 | ||
b34976b6 | 2757 | static bfd_boolean |
252b5132 RH |
2758 | sparc64_elf_finish_dynamic_symbol (output_bfd, info, h, sym) |
2759 | bfd *output_bfd; | |
2760 | struct bfd_link_info *info; | |
2761 | struct elf_link_hash_entry *h; | |
2762 | Elf_Internal_Sym *sym; | |
2763 | { | |
2764 | bfd *dynobj; | |
2765 | ||
2766 | dynobj = elf_hash_table (info)->dynobj; | |
2767 | ||
2768 | if (h->plt.offset != (bfd_vma) -1) | |
2769 | { | |
2770 | asection *splt; | |
2771 | asection *srela; | |
2772 | Elf_Internal_Rela rela; | |
947216bf | 2773 | bfd_byte *loc; |
252b5132 | 2774 | |
435b1e90 | 2775 | /* This symbol has an entry in the PLT. Set it up. */ |
252b5132 RH |
2776 | |
2777 | BFD_ASSERT (h->dynindx != -1); | |
2778 | ||
2779 | splt = bfd_get_section_by_name (dynobj, ".plt"); | |
2780 | srela = bfd_get_section_by_name (dynobj, ".rela.plt"); | |
2781 | BFD_ASSERT (splt != NULL && srela != NULL); | |
2782 | ||
2783 | /* Fill in the entry in the .rela.plt section. */ | |
2784 | ||
2785 | if (h->plt.offset < LARGE_PLT_THRESHOLD) | |
2786 | { | |
2787 | rela.r_offset = sparc64_elf_plt_entry_offset (h->plt.offset); | |
2788 | rela.r_addend = 0; | |
2789 | } | |
2790 | else | |
2791 | { | |
eea6121a | 2792 | bfd_vma max = splt->size / PLT_ENTRY_SIZE; |
252b5132 | 2793 | rela.r_offset = sparc64_elf_plt_ptr_offset (h->plt.offset, max); |
a11c78e7 RH |
2794 | rela.r_addend = -(sparc64_elf_plt_entry_offset (h->plt.offset) + 4) |
2795 | -(splt->output_section->vma + splt->output_offset); | |
252b5132 RH |
2796 | } |
2797 | rela.r_offset += (splt->output_section->vma + splt->output_offset); | |
2798 | rela.r_info = ELF64_R_INFO (h->dynindx, R_SPARC_JMP_SLOT); | |
2799 | ||
be040dbb JJ |
2800 | /* Adjust for the first 4 reserved elements in the .plt section |
2801 | when setting the offset in the .rela.plt section. | |
2802 | Sun forgot to read their own ABI and copied elf32-sparc behaviour, | |
2803 | thus .plt[4] has corresponding .rela.plt[0] and so on. */ | |
2804 | ||
947216bf AM |
2805 | loc = srela->contents; |
2806 | loc += (h->plt.offset - 4) * sizeof (Elf64_External_Rela); | |
2807 | bfd_elf64_swap_reloca_out (output_bfd, &rela, loc); | |
252b5132 | 2808 | |
f5385ebf | 2809 | if (!h->def_regular) |
252b5132 RH |
2810 | { |
2811 | /* Mark the symbol as undefined, rather than as defined in | |
2812 | the .plt section. Leave the value alone. */ | |
2813 | sym->st_shndx = SHN_UNDEF; | |
8701c1bc JJ |
2814 | /* If the symbol is weak, we do need to clear the value. |
2815 | Otherwise, the PLT entry would provide a definition for | |
2816 | the symbol even if the symbol wasn't defined anywhere, | |
2817 | and so the symbol would never be NULL. */ | |
f5385ebf | 2818 | if (!h->ref_regular_nonweak) |
8701c1bc | 2819 | sym->st_value = 0; |
252b5132 RH |
2820 | } |
2821 | } | |
2822 | ||
2823 | if (h->got.offset != (bfd_vma) -1) | |
2824 | { | |
2825 | asection *sgot; | |
2826 | asection *srela; | |
2827 | Elf_Internal_Rela rela; | |
947216bf | 2828 | bfd_byte *loc; |
252b5132 RH |
2829 | |
2830 | /* This symbol has an entry in the GOT. Set it up. */ | |
2831 | ||
a51a7930 EB |
2832 | sgot = sparc64_elf_hash_table (info)->sgot; |
2833 | srela = sparc64_elf_hash_table (info)->srelgot; | |
252b5132 RH |
2834 | BFD_ASSERT (sgot != NULL && srela != NULL); |
2835 | ||
2836 | rela.r_offset = (sgot->output_section->vma | |
2837 | + sgot->output_offset | |
dc810e39 | 2838 | + (h->got.offset &~ (bfd_vma) 1)); |
252b5132 RH |
2839 | |
2840 | /* If this is a -Bsymbolic link, and the symbol is defined | |
2841 | locally, we just want to emit a RELATIVE reloc. Likewise if | |
2842 | the symbol was forced to be local because of a version file. | |
2843 | The entry in the global offset table will already have been | |
2844 | initialized in the relocate_section function. */ | |
2845 | if (info->shared | |
2846 | && (info->symbolic || h->dynindx == -1) | |
f5385ebf | 2847 | && h->def_regular) |
252b5132 RH |
2848 | { |
2849 | asection *sec = h->root.u.def.section; | |
2850 | rela.r_info = ELF64_R_INFO (0, R_SPARC_RELATIVE); | |
2851 | rela.r_addend = (h->root.u.def.value | |
2852 | + sec->output_section->vma | |
2853 | + sec->output_offset); | |
2854 | } | |
2855 | else | |
2856 | { | |
252b5132 RH |
2857 | rela.r_info = ELF64_R_INFO (h->dynindx, R_SPARC_GLOB_DAT); |
2858 | rela.r_addend = 0; | |
2859 | } | |
2860 | ||
6b3ac709 JJ |
2861 | bfd_put_64 (output_bfd, (bfd_vma) 0, |
2862 | sgot->contents + (h->got.offset &~ (bfd_vma) 1)); | |
947216bf AM |
2863 | loc = srela->contents; |
2864 | loc += srela->reloc_count++ * sizeof (Elf64_External_Rela); | |
2865 | bfd_elf64_swap_reloca_out (output_bfd, &rela, loc); | |
252b5132 RH |
2866 | } |
2867 | ||
f5385ebf | 2868 | if (h->needs_copy) |
252b5132 RH |
2869 | { |
2870 | asection *s; | |
2871 | Elf_Internal_Rela rela; | |
947216bf | 2872 | bfd_byte *loc; |
252b5132 RH |
2873 | |
2874 | /* This symbols needs a copy reloc. Set it up. */ | |
252b5132 RH |
2875 | BFD_ASSERT (h->dynindx != -1); |
2876 | ||
2877 | s = bfd_get_section_by_name (h->root.u.def.section->owner, | |
2878 | ".rela.bss"); | |
2879 | BFD_ASSERT (s != NULL); | |
2880 | ||
2881 | rela.r_offset = (h->root.u.def.value | |
2882 | + h->root.u.def.section->output_section->vma | |
2883 | + h->root.u.def.section->output_offset); | |
2884 | rela.r_info = ELF64_R_INFO (h->dynindx, R_SPARC_COPY); | |
2885 | rela.r_addend = 0; | |
947216bf AM |
2886 | loc = s->contents + s->reloc_count++ * sizeof (Elf64_External_Rela); |
2887 | bfd_elf64_swap_reloca_out (output_bfd, &rela, loc); | |
252b5132 RH |
2888 | } |
2889 | ||
2890 | /* Mark some specially defined symbols as absolute. */ | |
2891 | if (strcmp (h->root.root.string, "_DYNAMIC") == 0 | |
2892 | || strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0 | |
2893 | || strcmp (h->root.root.string, "_PROCEDURE_LINKAGE_TABLE_") == 0) | |
2894 | sym->st_shndx = SHN_ABS; | |
2895 | ||
b34976b6 | 2896 | return TRUE; |
252b5132 RH |
2897 | } |
2898 | ||
2899 | /* Finish up the dynamic sections. */ | |
2900 | ||
b34976b6 | 2901 | static bfd_boolean |
252b5132 RH |
2902 | sparc64_elf_finish_dynamic_sections (output_bfd, info) |
2903 | bfd *output_bfd; | |
2904 | struct bfd_link_info *info; | |
2905 | { | |
2906 | bfd *dynobj; | |
587ff49e | 2907 | int stt_regidx = -1; |
252b5132 RH |
2908 | asection *sdyn; |
2909 | asection *sgot; | |
2910 | ||
2911 | dynobj = elf_hash_table (info)->dynobj; | |
2912 | ||
2913 | sdyn = bfd_get_section_by_name (dynobj, ".dynamic"); | |
2914 | ||
2915 | if (elf_hash_table (info)->dynamic_sections_created) | |
2916 | { | |
2917 | asection *splt; | |
2918 | Elf64_External_Dyn *dyncon, *dynconend; | |
2919 | ||
2920 | splt = bfd_get_section_by_name (dynobj, ".plt"); | |
2921 | BFD_ASSERT (splt != NULL && sdyn != NULL); | |
2922 | ||
2923 | dyncon = (Elf64_External_Dyn *) sdyn->contents; | |
eea6121a | 2924 | dynconend = (Elf64_External_Dyn *) (sdyn->contents + sdyn->size); |
252b5132 RH |
2925 | for (; dyncon < dynconend; dyncon++) |
2926 | { | |
2927 | Elf_Internal_Dyn dyn; | |
2928 | const char *name; | |
b34976b6 | 2929 | bfd_boolean size; |
252b5132 RH |
2930 | |
2931 | bfd_elf64_swap_dyn_in (dynobj, dyncon, &dyn); | |
2932 | ||
2933 | switch (dyn.d_tag) | |
2934 | { | |
b34976b6 AM |
2935 | case DT_PLTGOT: name = ".plt"; size = FALSE; break; |
2936 | case DT_PLTRELSZ: name = ".rela.plt"; size = TRUE; break; | |
2937 | case DT_JMPREL: name = ".rela.plt"; size = FALSE; break; | |
587ff49e RH |
2938 | case DT_SPARC_REGISTER: |
2939 | if (stt_regidx == -1) | |
2940 | { | |
2941 | stt_regidx = | |
2942 | _bfd_elf_link_lookup_local_dynindx (info, output_bfd, -1); | |
2943 | if (stt_regidx == -1) | |
b34976b6 | 2944 | return FALSE; |
587ff49e RH |
2945 | } |
2946 | dyn.d_un.d_val = stt_regidx++; | |
2947 | bfd_elf64_swap_dyn_out (output_bfd, &dyn, dyncon); | |
2948 | /* fallthrough */ | |
b34976b6 | 2949 | default: name = NULL; size = FALSE; break; |
252b5132 RH |
2950 | } |
2951 | ||
2952 | if (name != NULL) | |
2953 | { | |
2954 | asection *s; | |
2955 | ||
2956 | s = bfd_get_section_by_name (output_bfd, name); | |
2957 | if (s == NULL) | |
2958 | dyn.d_un.d_val = 0; | |
2959 | else | |
2960 | { | |
2961 | if (! size) | |
2962 | dyn.d_un.d_ptr = s->vma; | |
2963 | else | |
eea6121a | 2964 | dyn.d_un.d_val = s->size; |
252b5132 RH |
2965 | } |
2966 | bfd_elf64_swap_dyn_out (output_bfd, &dyn, dyncon); | |
2967 | } | |
2968 | } | |
2969 | ||
2970 | /* Initialize the contents of the .plt section. */ | |
eea6121a | 2971 | if (splt->size > 0) |
ae9a127f | 2972 | sparc64_elf_build_plt (output_bfd, splt->contents, |
eea6121a | 2973 | (int) (splt->size / PLT_ENTRY_SIZE)); |
252b5132 RH |
2974 | |
2975 | elf_section_data (splt->output_section)->this_hdr.sh_entsize = | |
2976 | PLT_ENTRY_SIZE; | |
2977 | } | |
2978 | ||
2979 | /* Set the first entry in the global offset table to the address of | |
2980 | the dynamic section. */ | |
a51a7930 | 2981 | sgot = sparc64_elf_hash_table (info)->sgot; |
252b5132 | 2982 | BFD_ASSERT (sgot != NULL); |
eea6121a | 2983 | if (sgot->size > 0) |
252b5132 RH |
2984 | { |
2985 | if (sdyn == NULL) | |
2986 | bfd_put_64 (output_bfd, (bfd_vma) 0, sgot->contents); | |
2987 | else | |
2988 | bfd_put_64 (output_bfd, | |
2989 | sdyn->output_section->vma + sdyn->output_offset, | |
2990 | sgot->contents); | |
2991 | } | |
2992 | ||
2993 | elf_section_data (sgot->output_section)->this_hdr.sh_entsize = 8; | |
2994 | ||
b34976b6 | 2995 | return TRUE; |
252b5132 | 2996 | } |
db6751f2 JJ |
2997 | |
2998 | static enum elf_reloc_type_class | |
f51e552e AM |
2999 | sparc64_elf_reloc_type_class (rela) |
3000 | const Elf_Internal_Rela *rela; | |
db6751f2 | 3001 | { |
f51e552e | 3002 | switch ((int) ELF64_R_TYPE (rela->r_info)) |
db6751f2 JJ |
3003 | { |
3004 | case R_SPARC_RELATIVE: | |
3005 | return reloc_class_relative; | |
3006 | case R_SPARC_JMP_SLOT: | |
3007 | return reloc_class_plt; | |
3008 | case R_SPARC_COPY: | |
3009 | return reloc_class_copy; | |
3010 | default: | |
3011 | return reloc_class_normal; | |
3012 | } | |
3013 | } | |
252b5132 | 3014 | \f |
435b1e90 | 3015 | /* Functions for dealing with the e_flags field. */ |
252b5132 RH |
3016 | |
3017 | /* Merge backend specific data from an object file to the output | |
3018 | object file when linking. */ | |
3019 | ||
b34976b6 | 3020 | static bfd_boolean |
252b5132 RH |
3021 | sparc64_elf_merge_private_bfd_data (ibfd, obfd) |
3022 | bfd *ibfd; | |
3023 | bfd *obfd; | |
3024 | { | |
b34976b6 | 3025 | bfd_boolean error; |
252b5132 RH |
3026 | flagword new_flags, old_flags; |
3027 | int new_mm, old_mm; | |
3028 | ||
3029 | if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour | |
3030 | || bfd_get_flavour (obfd) != bfd_target_elf_flavour) | |
b34976b6 | 3031 | return TRUE; |
252b5132 RH |
3032 | |
3033 | new_flags = elf_elfheader (ibfd)->e_flags; | |
3034 | old_flags = elf_elfheader (obfd)->e_flags; | |
3035 | ||
3036 | if (!elf_flags_init (obfd)) /* First call, no flags set */ | |
3037 | { | |
b34976b6 | 3038 | elf_flags_init (obfd) = TRUE; |
252b5132 RH |
3039 | elf_elfheader (obfd)->e_flags = new_flags; |
3040 | } | |
435b1e90 | 3041 | |
252b5132 RH |
3042 | else if (new_flags == old_flags) /* Compatible flags are ok */ |
3043 | ; | |
435b1e90 | 3044 | |
252b5132 RH |
3045 | else /* Incompatible flags */ |
3046 | { | |
b34976b6 | 3047 | error = FALSE; |
19f7b010 JJ |
3048 | |
3049 | #define EF_SPARC_ISA_EXTENSIONS \ | |
3050 | (EF_SPARC_SUN_US1 | EF_SPARC_SUN_US3 | EF_SPARC_HAL_R1) | |
3051 | ||
37fb6db1 ILT |
3052 | if ((ibfd->flags & DYNAMIC) != 0) |
3053 | { | |
3054 | /* We don't want dynamic objects memory ordering and | |
3055 | architecture to have any role. That's what dynamic linker | |
3056 | should do. */ | |
19f7b010 | 3057 | new_flags &= ~(EF_SPARCV9_MM | EF_SPARC_ISA_EXTENSIONS); |
6c08d697 | 3058 | new_flags |= (old_flags |
19f7b010 | 3059 | & (EF_SPARCV9_MM | EF_SPARC_ISA_EXTENSIONS)); |
37fb6db1 ILT |
3060 | } |
3061 | else | |
3062 | { | |
3063 | /* Choose the highest architecture requirements. */ | |
19f7b010 JJ |
3064 | old_flags |= (new_flags & EF_SPARC_ISA_EXTENSIONS); |
3065 | new_flags |= (old_flags & EF_SPARC_ISA_EXTENSIONS); | |
3066 | if ((old_flags & (EF_SPARC_SUN_US1 | EF_SPARC_SUN_US3)) | |
3067 | && (old_flags & EF_SPARC_HAL_R1)) | |
37fb6db1 | 3068 | { |
b34976b6 | 3069 | error = TRUE; |
37fb6db1 | 3070 | (*_bfd_error_handler) |
d003868e AM |
3071 | (_("%B: linking UltraSPARC specific with HAL specific code"), |
3072 | ibfd); | |
37fb6db1 ILT |
3073 | } |
3074 | /* Choose the most restrictive memory ordering. */ | |
3075 | old_mm = (old_flags & EF_SPARCV9_MM); | |
3076 | new_mm = (new_flags & EF_SPARCV9_MM); | |
3077 | old_flags &= ~EF_SPARCV9_MM; | |
3078 | new_flags &= ~EF_SPARCV9_MM; | |
3079 | if (new_mm < old_mm) | |
3080 | old_mm = new_mm; | |
3081 | old_flags |= old_mm; | |
3082 | new_flags |= old_mm; | |
3083 | } | |
252b5132 RH |
3084 | |
3085 | /* Warn about any other mismatches */ | |
3086 | if (new_flags != old_flags) | |
3087 | { | |
b34976b6 | 3088 | error = TRUE; |
252b5132 | 3089 | (*_bfd_error_handler) |
d003868e AM |
3090 | (_("%B: uses different e_flags (0x%lx) fields than previous modules (0x%lx)"), |
3091 | ibfd, (long) new_flags, (long) old_flags); | |
252b5132 RH |
3092 | } |
3093 | ||
3094 | elf_elfheader (obfd)->e_flags = old_flags; | |
3095 | ||
3096 | if (error) | |
3097 | { | |
3098 | bfd_set_error (bfd_error_bad_value); | |
b34976b6 | 3099 | return FALSE; |
252b5132 RH |
3100 | } |
3101 | } | |
b34976b6 | 3102 | return TRUE; |
252b5132 | 3103 | } |
0594c12d AM |
3104 | |
3105 | /* MARCO: Set the correct entry size for the .stab section. */ | |
3106 | ||
b34976b6 | 3107 | static bfd_boolean |
0594c12d AM |
3108 | sparc64_elf_fake_sections (abfd, hdr, sec) |
3109 | bfd *abfd ATTRIBUTE_UNUSED; | |
947216bf | 3110 | Elf_Internal_Shdr *hdr ATTRIBUTE_UNUSED; |
0594c12d AM |
3111 | asection *sec; |
3112 | { | |
3113 | const char *name; | |
3114 | ||
3115 | name = bfd_get_section_name (abfd, sec); | |
3116 | ||
3117 | if (strcmp (name, ".stab") == 0) | |
3118 | { | |
3119 | /* Even in the 64bit case the stab entries are only 12 bytes long. */ | |
3120 | elf_section_data (sec)->this_hdr.sh_entsize = 12; | |
3121 | } | |
b34976b6 AM |
3122 | |
3123 | return TRUE; | |
0594c12d | 3124 | } |
587ff49e RH |
3125 | \f |
3126 | /* Print a STT_REGISTER symbol to file FILE. */ | |
252b5132 | 3127 | |
587ff49e RH |
3128 | static const char * |
3129 | sparc64_elf_print_symbol_all (abfd, filep, symbol) | |
6c08d697 | 3130 | bfd *abfd ATTRIBUTE_UNUSED; |
587ff49e RH |
3131 | PTR filep; |
3132 | asymbol *symbol; | |
3133 | { | |
3134 | FILE *file = (FILE *) filep; | |
3135 | int reg, type; | |
435b1e90 | 3136 | |
587ff49e RH |
3137 | if (ELF_ST_TYPE (((elf_symbol_type *) symbol)->internal_elf_sym.st_info) |
3138 | != STT_REGISTER) | |
3139 | return NULL; | |
3140 | ||
3141 | reg = ((elf_symbol_type *) symbol)->internal_elf_sym.st_value; | |
3142 | type = symbol->flags; | |
3143 | fprintf (file, "REG_%c%c%11s%c%c R", "GOLI" [reg / 8], '0' + (reg & 7), "", | |
3144 | ((type & BSF_LOCAL) | |
3145 | ? (type & BSF_GLOBAL) ? '!' : 'l' | |
99c79b2e AJ |
3146 | : (type & BSF_GLOBAL) ? 'g' : ' '), |
3147 | (type & BSF_WEAK) ? 'w' : ' '); | |
587ff49e RH |
3148 | if (symbol->name == NULL || symbol->name [0] == '\0') |
3149 | return "#scratch"; | |
3150 | else | |
3151 | return symbol->name; | |
3152 | } | |
252b5132 RH |
3153 | \f |
3154 | /* Set the right machine number for a SPARC64 ELF file. */ | |
3155 | ||
b34976b6 | 3156 | static bfd_boolean |
252b5132 RH |
3157 | sparc64_elf_object_p (abfd) |
3158 | bfd *abfd; | |
3159 | { | |
3160 | unsigned long mach = bfd_mach_sparc_v9; | |
19f7b010 JJ |
3161 | |
3162 | if (elf_elfheader (abfd)->e_flags & EF_SPARC_SUN_US3) | |
3163 | mach = bfd_mach_sparc_v9b; | |
3164 | else if (elf_elfheader (abfd)->e_flags & EF_SPARC_SUN_US1) | |
252b5132 RH |
3165 | mach = bfd_mach_sparc_v9a; |
3166 | return bfd_default_set_arch_mach (abfd, bfd_arch_sparc, mach); | |
3167 | } | |
3168 | ||
4c45e5c9 JJ |
3169 | /* Return address for Ith PLT stub in section PLT, for relocation REL |
3170 | or (bfd_vma) -1 if it should not be included. */ | |
3171 | ||
3172 | static bfd_vma | |
3173 | sparc64_elf_plt_sym_val (bfd_vma i, const asection *plt, | |
1829f4b2 | 3174 | const arelent *rel ATTRIBUTE_UNUSED) |
4c45e5c9 JJ |
3175 | { |
3176 | bfd_vma j; | |
3177 | ||
3178 | i += PLT_HEADER_SIZE / PLT_ENTRY_SIZE; | |
3179 | if (i < LARGE_PLT_THRESHOLD) | |
3180 | return plt->vma + i * PLT_ENTRY_SIZE; | |
3181 | ||
3182 | j = (i - LARGE_PLT_THRESHOLD) % 160; | |
3183 | i -= j; | |
3184 | return plt->vma + i * PLT_ENTRY_SIZE + j * 4 * 6; | |
3185 | } | |
3186 | ||
f65054f7 RH |
3187 | /* Relocations in the 64 bit SPARC ELF ABI are more complex than in |
3188 | standard ELF, because R_SPARC_OLO10 has secondary addend in | |
3189 | ELF64_R_TYPE_DATA field. This structure is used to redirect the | |
3190 | relocation handling routines. */ | |
3191 | ||
3192 | const struct elf_size_info sparc64_elf_size_info = | |
3193 | { | |
3194 | sizeof (Elf64_External_Ehdr), | |
3195 | sizeof (Elf64_External_Phdr), | |
3196 | sizeof (Elf64_External_Shdr), | |
3197 | sizeof (Elf64_External_Rel), | |
3198 | sizeof (Elf64_External_Rela), | |
3199 | sizeof (Elf64_External_Sym), | |
3200 | sizeof (Elf64_External_Dyn), | |
3201 | sizeof (Elf_External_Note), | |
ae9a127f NC |
3202 | 4, /* hash-table entry size. */ |
3203 | /* Internal relocations per external relocations. | |
f65054f7 RH |
3204 | For link purposes we use just 1 internal per |
3205 | 1 external, for assembly and slurp symbol table | |
435b1e90 | 3206 | we use 2. */ |
f65054f7 | 3207 | 1, |
ae9a127f | 3208 | 64, /* arch_size. */ |
45d6a902 | 3209 | 3, /* log_file_align. */ |
f65054f7 RH |
3210 | ELFCLASS64, |
3211 | EV_CURRENT, | |
3212 | bfd_elf64_write_out_phdrs, | |
3213 | bfd_elf64_write_shdrs_and_ehdr, | |
3214 | sparc64_elf_write_relocs, | |
73ff0d56 | 3215 | bfd_elf64_swap_symbol_in, |
f65054f7 RH |
3216 | bfd_elf64_swap_symbol_out, |
3217 | sparc64_elf_slurp_reloc_table, | |
3218 | bfd_elf64_slurp_symbol_table, | |
3219 | bfd_elf64_swap_dyn_in, | |
3220 | bfd_elf64_swap_dyn_out, | |
947216bf AM |
3221 | bfd_elf64_swap_reloc_in, |
3222 | bfd_elf64_swap_reloc_out, | |
3223 | bfd_elf64_swap_reloca_in, | |
3224 | bfd_elf64_swap_reloca_out | |
f65054f7 RH |
3225 | }; |
3226 | ||
252b5132 RH |
3227 | #define TARGET_BIG_SYM bfd_elf64_sparc_vec |
3228 | #define TARGET_BIG_NAME "elf64-sparc" | |
3229 | #define ELF_ARCH bfd_arch_sparc | |
3230 | #define ELF_MAXPAGESIZE 0x100000 | |
3231 | ||
3232 | /* This is the official ABI value. */ | |
3233 | #define ELF_MACHINE_CODE EM_SPARCV9 | |
3234 | ||
3235 | /* This is the value that we used before the ABI was released. */ | |
3236 | #define ELF_MACHINE_ALT1 EM_OLD_SPARCV9 | |
3237 | ||
587ff49e RH |
3238 | #define bfd_elf64_bfd_link_hash_table_create \ |
3239 | sparc64_elf_bfd_link_hash_table_create | |
435b1e90 | 3240 | |
252b5132 RH |
3241 | #define elf_info_to_howto \ |
3242 | sparc64_elf_info_to_howto | |
f65054f7 RH |
3243 | #define bfd_elf64_get_reloc_upper_bound \ |
3244 | sparc64_elf_get_reloc_upper_bound | |
3245 | #define bfd_elf64_get_dynamic_reloc_upper_bound \ | |
3246 | sparc64_elf_get_dynamic_reloc_upper_bound | |
3e1d7f19 JJ |
3247 | #define bfd_elf64_canonicalize_reloc \ |
3248 | sparc64_elf_canonicalize_reloc | |
f65054f7 RH |
3249 | #define bfd_elf64_canonicalize_dynamic_reloc \ |
3250 | sparc64_elf_canonicalize_dynamic_reloc | |
252b5132 RH |
3251 | #define bfd_elf64_bfd_reloc_type_lookup \ |
3252 | sparc64_elf_reloc_type_lookup | |
f7775d95 JJ |
3253 | #define bfd_elf64_bfd_relax_section \ |
3254 | sparc64_elf_relax_section | |
f0abc2a1 AM |
3255 | #define bfd_elf64_new_section_hook \ |
3256 | sparc64_elf_new_section_hook | |
252b5132 RH |
3257 | |
3258 | #define elf_backend_create_dynamic_sections \ | |
a51a7930 | 3259 | sparc64_elf_create_dynamic_sections |
587ff49e RH |
3260 | #define elf_backend_add_symbol_hook \ |
3261 | sparc64_elf_add_symbol_hook | |
3262 | #define elf_backend_get_symbol_type \ | |
3263 | sparc64_elf_get_symbol_type | |
3264 | #define elf_backend_symbol_processing \ | |
3265 | sparc64_elf_symbol_processing | |
252b5132 RH |
3266 | #define elf_backend_check_relocs \ |
3267 | sparc64_elf_check_relocs | |
3268 | #define elf_backend_adjust_dynamic_symbol \ | |
3269 | sparc64_elf_adjust_dynamic_symbol | |
151e5294 EB |
3270 | #define elf_backend_omit_section_dynsym \ |
3271 | sparc64_elf_omit_section_dynsym | |
252b5132 RH |
3272 | #define elf_backend_size_dynamic_sections \ |
3273 | sparc64_elf_size_dynamic_sections | |
3274 | #define elf_backend_relocate_section \ | |
3275 | sparc64_elf_relocate_section | |
3276 | #define elf_backend_finish_dynamic_symbol \ | |
3277 | sparc64_elf_finish_dynamic_symbol | |
3278 | #define elf_backend_finish_dynamic_sections \ | |
3279 | sparc64_elf_finish_dynamic_sections | |
587ff49e RH |
3280 | #define elf_backend_print_symbol_all \ |
3281 | sparc64_elf_print_symbol_all | |
3282 | #define elf_backend_output_arch_syms \ | |
3283 | sparc64_elf_output_arch_syms | |
252b5132 RH |
3284 | #define bfd_elf64_bfd_merge_private_bfd_data \ |
3285 | sparc64_elf_merge_private_bfd_data | |
0594c12d AM |
3286 | #define elf_backend_fake_sections \ |
3287 | sparc64_elf_fake_sections | |
4c45e5c9 JJ |
3288 | #define elf_backend_plt_sym_val \ |
3289 | sparc64_elf_plt_sym_val | |
252b5132 | 3290 | |
f65054f7 RH |
3291 | #define elf_backend_size_info \ |
3292 | sparc64_elf_size_info | |
252b5132 RH |
3293 | #define elf_backend_object_p \ |
3294 | sparc64_elf_object_p | |
db6751f2 JJ |
3295 | #define elf_backend_reloc_type_class \ |
3296 | sparc64_elf_reloc_type_class | |
252b5132 RH |
3297 | |
3298 | #define elf_backend_want_got_plt 0 | |
3299 | #define elf_backend_plt_readonly 0 | |
3300 | #define elf_backend_want_plt_sym 1 | |
f0fe0e16 | 3301 | #define elf_backend_rela_normal 1 |
252b5132 RH |
3302 | |
3303 | /* Section 5.2.4 of the ABI specifies a 256-byte boundary for the table. */ | |
3304 | #define elf_backend_plt_alignment 8 | |
3305 | ||
3306 | #define elf_backend_got_header_size 8 | |
252b5132 RH |
3307 | |
3308 | #include "elf64-target.h" |