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