1 /* SPARC-specific support for 64-bit ELF
2 Copyright 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001
3 Free Software Foundation, Inc.
5 This file is part of BFD, the Binary File Descriptor library.
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.
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.
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. */
25 #include "opcode/sparc.h"
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*/
32 #include "elf/sparc.h"
34 /* In case we're on a 32-bit machine, construct a 64-bit "-1" value. */
35 #define MINUS_ONE (~ (bfd_vma) 0)
37 static struct bfd_link_hash_table * sparc64_elf_bfd_link_hash_table_create
39 static bfd_reloc_status_type init_insn_reloc
40 PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *,
41 bfd *, bfd_vma *, bfd_vma *));
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 *));
47 static void sparc64_elf_build_plt
48 PARAMS ((bfd *, unsigned char *, int));
49 static bfd_vma sparc64_elf_plt_entry_offset
51 static bfd_vma sparc64_elf_plt_ptr_offset
52 PARAMS ((bfd_vma, bfd_vma));
54 static boolean sparc64_elf_check_relocs
55 PARAMS ((bfd *, struct bfd_link_info *, asection *sec,
56 const Elf_Internal_Rela *));
57 static boolean sparc64_elf_adjust_dynamic_symbol
58 PARAMS ((struct bfd_link_info *, struct elf_link_hash_entry *));
59 static boolean sparc64_elf_size_dynamic_sections
60 PARAMS ((bfd *, struct bfd_link_info *));
61 static int sparc64_elf_get_symbol_type
62 PARAMS (( Elf_Internal_Sym *, int));
63 static boolean sparc64_elf_add_symbol_hook
64 PARAMS ((bfd *, struct bfd_link_info *, const Elf_Internal_Sym *,
65 const char **, flagword *, asection **, bfd_vma *));
66 static boolean sparc64_elf_output_arch_syms
67 PARAMS ((bfd *, struct bfd_link_info *, PTR,
68 boolean (*) (PTR, const char *, Elf_Internal_Sym *, asection *)));
69 static void sparc64_elf_symbol_processing
70 PARAMS ((bfd *, asymbol *));
72 static boolean sparc64_elf_merge_private_bfd_data
73 PARAMS ((bfd *, bfd *));
75 static const char *sparc64_elf_print_symbol_all
76 PARAMS ((bfd *, PTR, asymbol *));
77 static boolean sparc64_elf_relax_section
78 PARAMS ((bfd *, asection *, struct bfd_link_info *, boolean *));
79 static boolean sparc64_elf_relocate_section
80 PARAMS ((bfd *, struct bfd_link_info *, bfd *, asection *, bfd_byte *,
81 Elf_Internal_Rela *, Elf_Internal_Sym *, asection **));
82 static boolean sparc64_elf_finish_dynamic_symbol
83 PARAMS ((bfd *, struct bfd_link_info *, struct elf_link_hash_entry *,
85 static boolean sparc64_elf_finish_dynamic_sections
86 PARAMS ((bfd *, struct bfd_link_info *));
87 static boolean sparc64_elf_object_p PARAMS ((bfd *));
88 static long sparc64_elf_get_reloc_upper_bound PARAMS ((bfd *, asection *));
89 static long sparc64_elf_get_dynamic_reloc_upper_bound PARAMS ((bfd *));
90 static boolean sparc64_elf_slurp_one_reloc_table
91 PARAMS ((bfd *, asection *, Elf_Internal_Shdr *, asymbol **, boolean));
92 static boolean sparc64_elf_slurp_reloc_table
93 PARAMS ((bfd *, asection *, asymbol **, boolean));
94 static long sparc64_elf_canonicalize_dynamic_reloc
95 PARAMS ((bfd *, arelent **, asymbol **));
96 static void sparc64_elf_write_relocs PARAMS ((bfd *, asection *, PTR));
97 static enum elf_reloc_type_class sparc64_elf_reloc_type_class
98 PARAMS ((const Elf_Internal_Rela *));
100 /* The relocation "howto" table. */
102 static bfd_reloc_status_type sparc_elf_notsup_reloc
103 PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **));
104 static bfd_reloc_status_type sparc_elf_wdisp16_reloc
105 PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **));
106 static bfd_reloc_status_type sparc_elf_hix22_reloc
107 PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **));
108 static bfd_reloc_status_type sparc_elf_lox10_reloc
109 PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **));
111 static reloc_howto_type sparc64_elf_howto_table[] =
113 HOWTO(R_SPARC_NONE, 0,0, 0,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_NONE", false,0,0x00000000,true),
114 HOWTO(R_SPARC_8, 0,0, 8,false,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_8", false,0,0x000000ff,true),
115 HOWTO(R_SPARC_16, 0,1,16,false,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_16", false,0,0x0000ffff,true),
116 HOWTO(R_SPARC_32, 0,2,32,false,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_32", false,0,0xffffffff,true),
117 HOWTO(R_SPARC_DISP8, 0,0, 8,true, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_DISP8", false,0,0x000000ff,true),
118 HOWTO(R_SPARC_DISP16, 0,1,16,true, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_DISP16", false,0,0x0000ffff,true),
119 HOWTO(R_SPARC_DISP32, 0,2,32,true, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_DISP32", false,0,0x00ffffff,true),
120 HOWTO(R_SPARC_WDISP30, 2,2,30,true, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_WDISP30", false,0,0x3fffffff,true),
121 HOWTO(R_SPARC_WDISP22, 2,2,22,true, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_WDISP22", false,0,0x003fffff,true),
122 HOWTO(R_SPARC_HI22, 10,2,22,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_HI22", false,0,0x003fffff,true),
123 HOWTO(R_SPARC_22, 0,2,22,false,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_22", false,0,0x003fffff,true),
124 HOWTO(R_SPARC_13, 0,2,13,false,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_13", false,0,0x00001fff,true),
125 HOWTO(R_SPARC_LO10, 0,2,10,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_LO10", false,0,0x000003ff,true),
126 HOWTO(R_SPARC_GOT10, 0,2,10,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_GOT10", false,0,0x000003ff,true),
127 HOWTO(R_SPARC_GOT13, 0,2,13,false,0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_GOT13", false,0,0x00001fff,true),
128 HOWTO(R_SPARC_GOT22, 10,2,22,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_GOT22", false,0,0x003fffff,true),
129 HOWTO(R_SPARC_PC10, 0,2,10,true, 0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_PC10", false,0,0x000003ff,true),
130 HOWTO(R_SPARC_PC22, 10,2,22,true, 0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_PC22", false,0,0x003fffff,true),
131 HOWTO(R_SPARC_WPLT30, 2,2,30,true, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_WPLT30", false,0,0x3fffffff,true),
132 HOWTO(R_SPARC_COPY, 0,0,00,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_COPY", false,0,0x00000000,true),
133 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),
134 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),
135 HOWTO(R_SPARC_RELATIVE, 0,0,00,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_RELATIVE",false,0,0x00000000,true),
136 HOWTO(R_SPARC_UA32, 0,2,32,false,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_UA32", false,0,0xffffffff,true),
137 #ifndef SPARC64_OLD_RELOCS
138 /* These aren't implemented yet. */
139 HOWTO(R_SPARC_PLT32, 0,0,00,false,0,complain_overflow_dont, sparc_elf_notsup_reloc, "R_SPARC_PLT32", false,0,0x00000000,true),
140 HOWTO(R_SPARC_HIPLT22, 0,0,00,false,0,complain_overflow_dont, sparc_elf_notsup_reloc, "R_SPARC_HIPLT22", false,0,0x00000000,true),
141 HOWTO(R_SPARC_LOPLT10, 0,0,00,false,0,complain_overflow_dont, sparc_elf_notsup_reloc, "R_SPARC_LOPLT10", false,0,0x00000000,true),
142 HOWTO(R_SPARC_PCPLT32, 0,0,00,false,0,complain_overflow_dont, sparc_elf_notsup_reloc, "R_SPARC_PCPLT32", false,0,0x00000000,true),
143 HOWTO(R_SPARC_PCPLT22, 0,0,00,false,0,complain_overflow_dont, sparc_elf_notsup_reloc, "R_SPARC_PCPLT22", false,0,0x00000000,true),
144 HOWTO(R_SPARC_PCPLT10, 0,0,00,false,0,complain_overflow_dont, sparc_elf_notsup_reloc, "R_SPARC_PCPLT10", false,0,0x00000000,true),
146 HOWTO(R_SPARC_10, 0,2,10,false,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_10", false,0,0x000003ff,true),
147 HOWTO(R_SPARC_11, 0,2,11,false,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_11", false,0,0x000007ff,true),
148 HOWTO(R_SPARC_64, 0,4,64,false,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_64", false,0,MINUS_ONE, true),
149 HOWTO(R_SPARC_OLO10, 0,2,13,false,0,complain_overflow_signed, sparc_elf_notsup_reloc, "R_SPARC_OLO10", false,0,0x00001fff,true),
150 HOWTO(R_SPARC_HH22, 42,2,22,false,0,complain_overflow_unsigned,bfd_elf_generic_reloc, "R_SPARC_HH22", false,0,0x003fffff,true),
151 HOWTO(R_SPARC_HM10, 32,2,10,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_HM10", false,0,0x000003ff,true),
152 HOWTO(R_SPARC_LM22, 10,2,22,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_LM22", false,0,0x003fffff,true),
153 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),
154 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),
155 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),
156 HOWTO(R_SPARC_WDISP16, 2,2,16,true, 0,complain_overflow_signed, sparc_elf_wdisp16_reloc,"R_SPARC_WDISP16", false,0,0x00000000,true),
157 HOWTO(R_SPARC_WDISP19, 2,2,19,true, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_WDISP19", false,0,0x0007ffff,true),
158 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),
159 HOWTO(R_SPARC_7, 0,2, 7,false,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_7", false,0,0x0000007f,true),
160 HOWTO(R_SPARC_5, 0,2, 5,false,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_5", false,0,0x0000001f,true),
161 HOWTO(R_SPARC_6, 0,2, 6,false,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_6", false,0,0x0000003f,true),
162 HOWTO(R_SPARC_DISP64, 0,4,64,true, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_DISP64", false,0,MINUS_ONE, true),
163 HOWTO(R_SPARC_PLT64, 0,4,64,false,0,complain_overflow_bitfield,sparc_elf_notsup_reloc, "R_SPARC_PLT64", false,0,MINUS_ONE, false),
164 HOWTO(R_SPARC_HIX22, 0,4, 0,false,0,complain_overflow_bitfield,sparc_elf_hix22_reloc, "R_SPARC_HIX22", false,0,MINUS_ONE, false),
165 HOWTO(R_SPARC_LOX10, 0,4, 0,false,0,complain_overflow_dont, sparc_elf_lox10_reloc, "R_SPARC_LOX10", false,0,MINUS_ONE, false),
166 HOWTO(R_SPARC_H44, 22,2,22,false,0,complain_overflow_unsigned,bfd_elf_generic_reloc, "R_SPARC_H44", false,0,0x003fffff,false),
167 HOWTO(R_SPARC_M44, 12,2,10,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_M44", false,0,0x000003ff,false),
168 HOWTO(R_SPARC_L44, 0,2,13,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_L44", false,0,0x00000fff,false),
169 HOWTO(R_SPARC_REGISTER, 0,4, 0,false,0,complain_overflow_bitfield,sparc_elf_notsup_reloc, "R_SPARC_REGISTER",false,0,MINUS_ONE, false),
170 HOWTO(R_SPARC_UA64, 0,4,64,false,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_UA64", false,0,MINUS_ONE, true),
171 HOWTO(R_SPARC_UA16, 0,1,16,false,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_UA16", false,0,0x0000ffff,true)
174 struct elf_reloc_map {
175 bfd_reloc_code_real_type bfd_reloc_val;
176 unsigned char elf_reloc_val;
179 static const struct elf_reloc_map sparc_reloc_map[] =
181 { BFD_RELOC_NONE, R_SPARC_NONE, },
182 { BFD_RELOC_16, R_SPARC_16, },
183 { BFD_RELOC_8, R_SPARC_8 },
184 { BFD_RELOC_8_PCREL, R_SPARC_DISP8 },
185 { BFD_RELOC_CTOR, R_SPARC_64 },
186 { BFD_RELOC_32, R_SPARC_32 },
187 { BFD_RELOC_32_PCREL, R_SPARC_DISP32 },
188 { BFD_RELOC_HI22, R_SPARC_HI22 },
189 { BFD_RELOC_LO10, R_SPARC_LO10, },
190 { BFD_RELOC_32_PCREL_S2, R_SPARC_WDISP30 },
191 { BFD_RELOC_SPARC22, R_SPARC_22 },
192 { BFD_RELOC_SPARC13, R_SPARC_13 },
193 { BFD_RELOC_SPARC_GOT10, R_SPARC_GOT10 },
194 { BFD_RELOC_SPARC_GOT13, R_SPARC_GOT13 },
195 { BFD_RELOC_SPARC_GOT22, R_SPARC_GOT22 },
196 { BFD_RELOC_SPARC_PC10, R_SPARC_PC10 },
197 { BFD_RELOC_SPARC_PC22, R_SPARC_PC22 },
198 { BFD_RELOC_SPARC_WPLT30, R_SPARC_WPLT30 },
199 { BFD_RELOC_SPARC_COPY, R_SPARC_COPY },
200 { BFD_RELOC_SPARC_GLOB_DAT, R_SPARC_GLOB_DAT },
201 { BFD_RELOC_SPARC_JMP_SLOT, R_SPARC_JMP_SLOT },
202 { BFD_RELOC_SPARC_RELATIVE, R_SPARC_RELATIVE },
203 { BFD_RELOC_SPARC_WDISP22, R_SPARC_WDISP22 },
204 { BFD_RELOC_SPARC_UA16, R_SPARC_UA16 },
205 { BFD_RELOC_SPARC_UA32, R_SPARC_UA32 },
206 { BFD_RELOC_SPARC_UA64, R_SPARC_UA64 },
207 { BFD_RELOC_SPARC_10, R_SPARC_10 },
208 { BFD_RELOC_SPARC_11, R_SPARC_11 },
209 { BFD_RELOC_SPARC_64, R_SPARC_64 },
210 { BFD_RELOC_SPARC_OLO10, R_SPARC_OLO10 },
211 { BFD_RELOC_SPARC_HH22, R_SPARC_HH22 },
212 { BFD_RELOC_SPARC_HM10, R_SPARC_HM10 },
213 { BFD_RELOC_SPARC_LM22, R_SPARC_LM22 },
214 { BFD_RELOC_SPARC_PC_HH22, R_SPARC_PC_HH22 },
215 { BFD_RELOC_SPARC_PC_HM10, R_SPARC_PC_HM10 },
216 { BFD_RELOC_SPARC_PC_LM22, R_SPARC_PC_LM22 },
217 { BFD_RELOC_SPARC_WDISP16, R_SPARC_WDISP16 },
218 { BFD_RELOC_SPARC_WDISP19, R_SPARC_WDISP19 },
219 { BFD_RELOC_SPARC_7, R_SPARC_7 },
220 { BFD_RELOC_SPARC_5, R_SPARC_5 },
221 { BFD_RELOC_SPARC_6, R_SPARC_6 },
222 { BFD_RELOC_SPARC_DISP64, R_SPARC_DISP64 },
223 { BFD_RELOC_SPARC_PLT64, R_SPARC_PLT64 },
224 { BFD_RELOC_SPARC_HIX22, R_SPARC_HIX22 },
225 { BFD_RELOC_SPARC_LOX10, R_SPARC_LOX10 },
226 { BFD_RELOC_SPARC_H44, R_SPARC_H44 },
227 { BFD_RELOC_SPARC_M44, R_SPARC_M44 },
228 { BFD_RELOC_SPARC_L44, R_SPARC_L44 },
229 { BFD_RELOC_SPARC_REGISTER, R_SPARC_REGISTER }
232 static reloc_howto_type *
233 sparc64_elf_reloc_type_lookup (abfd, code)
234 bfd *abfd ATTRIBUTE_UNUSED;
235 bfd_reloc_code_real_type code;
238 for (i = 0; i < sizeof (sparc_reloc_map) / sizeof (struct elf_reloc_map); i++)
240 if (sparc_reloc_map[i].bfd_reloc_val == code)
241 return &sparc64_elf_howto_table[(int) sparc_reloc_map[i].elf_reloc_val];
247 sparc64_elf_info_to_howto (abfd, cache_ptr, dst)
248 bfd *abfd ATTRIBUTE_UNUSED;
250 Elf64_Internal_Rela *dst;
252 BFD_ASSERT (ELF64_R_TYPE_ID (dst->r_info) < (unsigned int) R_SPARC_max_std);
253 cache_ptr->howto = &sparc64_elf_howto_table[ELF64_R_TYPE_ID (dst->r_info)];
256 /* Due to the way how we handle R_SPARC_OLO10, each entry in a SHT_RELA
257 section can represent up to two relocs, we must tell the user to allocate
261 sparc64_elf_get_reloc_upper_bound (abfd, sec)
262 bfd *abfd ATTRIBUTE_UNUSED;
265 return (sec->reloc_count * 2 + 1) * sizeof (arelent *);
269 sparc64_elf_get_dynamic_reloc_upper_bound (abfd)
272 return _bfd_elf_get_dynamic_reloc_upper_bound (abfd) * 2;
275 /* Read relocations for ASECT from REL_HDR. There are RELOC_COUNT of
276 them. We cannot use generic elf routines for this, because R_SPARC_OLO10
277 has secondary addend in ELF64_R_TYPE_DATA. We handle it as two relocations
278 for the same location, R_SPARC_LO10 and R_SPARC_13. */
281 sparc64_elf_slurp_one_reloc_table (abfd, asect, rel_hdr, symbols, dynamic)
284 Elf_Internal_Shdr *rel_hdr;
288 PTR allocated = NULL;
289 bfd_byte *native_relocs;
296 allocated = (PTR) bfd_malloc (rel_hdr->sh_size);
297 if (allocated == NULL)
300 if (bfd_seek (abfd, rel_hdr->sh_offset, SEEK_SET) != 0
301 || bfd_bread (allocated, rel_hdr->sh_size, abfd) != rel_hdr->sh_size)
304 native_relocs = (bfd_byte *) allocated;
306 relents = asect->relocation + asect->reloc_count;
308 entsize = rel_hdr->sh_entsize;
309 BFD_ASSERT (entsize == sizeof (Elf64_External_Rela));
311 count = rel_hdr->sh_size / entsize;
313 for (i = 0, relent = relents; i < count;
314 i++, relent++, native_relocs += entsize)
316 Elf_Internal_Rela rela;
318 bfd_elf64_swap_reloca_in (abfd, (Elf64_External_Rela *) native_relocs, &rela);
320 /* The address of an ELF reloc is section relative for an object
321 file, and absolute for an executable file or shared library.
322 The address of a normal BFD reloc is always section relative,
323 and the address of a dynamic reloc is absolute.. */
324 if ((abfd->flags & (EXEC_P | DYNAMIC)) == 0 || dynamic)
325 relent->address = rela.r_offset;
327 relent->address = rela.r_offset - asect->vma;
329 if (ELF64_R_SYM (rela.r_info) == 0)
330 relent->sym_ptr_ptr = bfd_abs_section_ptr->symbol_ptr_ptr;
335 ps = symbols + ELF64_R_SYM (rela.r_info) - 1;
338 /* Canonicalize ELF section symbols. FIXME: Why? */
339 if ((s->flags & BSF_SECTION_SYM) == 0)
340 relent->sym_ptr_ptr = ps;
342 relent->sym_ptr_ptr = s->section->symbol_ptr_ptr;
345 relent->addend = rela.r_addend;
347 BFD_ASSERT (ELF64_R_TYPE_ID (rela.r_info) < (unsigned int) R_SPARC_max_std);
348 if (ELF64_R_TYPE_ID (rela.r_info) == R_SPARC_OLO10)
350 relent->howto = &sparc64_elf_howto_table[R_SPARC_LO10];
351 relent[1].address = relent->address;
353 relent->sym_ptr_ptr = bfd_abs_section_ptr->symbol_ptr_ptr;
354 relent->addend = ELF64_R_TYPE_DATA (rela.r_info);
355 relent->howto = &sparc64_elf_howto_table[R_SPARC_13];
358 relent->howto = &sparc64_elf_howto_table[ELF64_R_TYPE_ID (rela.r_info)];
361 asect->reloc_count += relent - relents;
363 if (allocated != NULL)
369 if (allocated != NULL)
374 /* Read in and swap the external relocs. */
377 sparc64_elf_slurp_reloc_table (abfd, asect, symbols, dynamic)
383 struct bfd_elf_section_data * const d = elf_section_data (asect);
384 Elf_Internal_Shdr *rel_hdr;
385 Elf_Internal_Shdr *rel_hdr2;
388 if (asect->relocation != NULL)
393 if ((asect->flags & SEC_RELOC) == 0
394 || asect->reloc_count == 0)
397 rel_hdr = &d->rel_hdr;
398 rel_hdr2 = d->rel_hdr2;
400 BFD_ASSERT (asect->rel_filepos == rel_hdr->sh_offset
401 || (rel_hdr2 && asect->rel_filepos == rel_hdr2->sh_offset));
405 /* Note that ASECT->RELOC_COUNT tends not to be accurate in this
406 case because relocations against this section may use the
407 dynamic symbol table, and in that case bfd_section_from_shdr
408 in elf.c does not update the RELOC_COUNT. */
409 if (asect->_raw_size == 0)
412 rel_hdr = &d->this_hdr;
413 asect->reloc_count = NUM_SHDR_ENTRIES (rel_hdr);
417 amt = asect->reloc_count;
418 amt *= 2 * sizeof (arelent);
419 asect->relocation = (arelent *) bfd_alloc (abfd, amt);
420 if (asect->relocation == NULL)
423 /* The sparc64_elf_slurp_one_reloc_table routine increments reloc_count. */
424 asect->reloc_count = 0;
426 if (!sparc64_elf_slurp_one_reloc_table (abfd, asect, rel_hdr, symbols,
431 && !sparc64_elf_slurp_one_reloc_table (abfd, asect, rel_hdr2, symbols,
438 /* Canonicalize the dynamic relocation entries. Note that we return
439 the dynamic relocations as a single block, although they are
440 actually associated with particular sections; the interface, which
441 was designed for SunOS style shared libraries, expects that there
442 is only one set of dynamic relocs. Any section that was actually
443 installed in the BFD, and has type SHT_REL or SHT_RELA, and uses
444 the dynamic symbol table, is considered to be a dynamic reloc
448 sparc64_elf_canonicalize_dynamic_reloc (abfd, storage, syms)
456 if (elf_dynsymtab (abfd) == 0)
458 bfd_set_error (bfd_error_invalid_operation);
463 for (s = abfd->sections; s != NULL; s = s->next)
465 if (elf_section_data (s)->this_hdr.sh_link == elf_dynsymtab (abfd)
466 && (elf_section_data (s)->this_hdr.sh_type == SHT_RELA))
471 if (! sparc64_elf_slurp_reloc_table (abfd, s, syms, true))
473 count = s->reloc_count;
475 for (i = 0; i < count; i++)
486 /* Write out the relocs. */
489 sparc64_elf_write_relocs (abfd, sec, data)
494 boolean *failedp = (boolean *) data;
495 Elf_Internal_Shdr *rela_hdr;
496 Elf64_External_Rela *outbound_relocas, *src_rela;
497 unsigned int idx, count;
498 asymbol *last_sym = 0;
499 int last_sym_idx = 0;
501 /* If we have already failed, don't do anything. */
505 if ((sec->flags & SEC_RELOC) == 0)
508 /* The linker backend writes the relocs out itself, and sets the
509 reloc_count field to zero to inhibit writing them here. Also,
510 sometimes the SEC_RELOC flag gets set even when there aren't any
512 if (sec->reloc_count == 0)
515 /* We can combine two relocs that refer to the same address
516 into R_SPARC_OLO10 if first one is R_SPARC_LO10 and the
517 latter is R_SPARC_13 with no associated symbol. */
519 for (idx = 0; idx < sec->reloc_count; idx++)
525 addr = sec->orelocation[idx]->address;
526 if (sec->orelocation[idx]->howto->type == R_SPARC_LO10
527 && idx < sec->reloc_count - 1)
529 arelent *r = sec->orelocation[idx + 1];
531 if (r->howto->type == R_SPARC_13
532 && r->address == addr
533 && bfd_is_abs_section ((*r->sym_ptr_ptr)->section)
534 && (*r->sym_ptr_ptr)->value == 0)
539 rela_hdr = &elf_section_data (sec)->rel_hdr;
541 rela_hdr->sh_size = rela_hdr->sh_entsize * count;
542 rela_hdr->contents = (PTR) bfd_alloc (abfd, rela_hdr->sh_size);
543 if (rela_hdr->contents == NULL)
549 /* Figure out whether the relocations are RELA or REL relocations. */
550 if (rela_hdr->sh_type != SHT_RELA)
553 /* orelocation has the data, reloc_count has the count... */
554 outbound_relocas = (Elf64_External_Rela *) rela_hdr->contents;
555 src_rela = outbound_relocas;
557 for (idx = 0; idx < sec->reloc_count; idx++)
559 Elf_Internal_Rela dst_rela;
564 ptr = sec->orelocation[idx];
566 /* The address of an ELF reloc is section relative for an object
567 file, and absolute for an executable file or shared library.
568 The address of a BFD reloc is always section relative. */
569 if ((abfd->flags & (EXEC_P | DYNAMIC)) == 0)
570 dst_rela.r_offset = ptr->address;
572 dst_rela.r_offset = ptr->address + sec->vma;
574 sym = *ptr->sym_ptr_ptr;
577 else if (bfd_is_abs_section (sym->section) && sym->value == 0)
582 n = _bfd_elf_symbol_from_bfd_symbol (abfd, &sym);
591 if ((*ptr->sym_ptr_ptr)->the_bfd != NULL
592 && (*ptr->sym_ptr_ptr)->the_bfd->xvec != abfd->xvec
593 && ! _bfd_elf_validate_reloc (abfd, ptr))
599 if (ptr->howto->type == R_SPARC_LO10
600 && idx < sec->reloc_count - 1)
602 arelent *r = sec->orelocation[idx + 1];
604 if (r->howto->type == R_SPARC_13
605 && r->address == ptr->address
606 && bfd_is_abs_section ((*r->sym_ptr_ptr)->section)
607 && (*r->sym_ptr_ptr)->value == 0)
611 = ELF64_R_INFO (n, ELF64_R_TYPE_INFO (r->addend,
615 dst_rela.r_info = ELF64_R_INFO (n, R_SPARC_LO10);
618 dst_rela.r_info = ELF64_R_INFO (n, ptr->howto->type);
620 dst_rela.r_addend = ptr->addend;
621 bfd_elf64_swap_reloca_out (abfd, &dst_rela, src_rela);
626 /* Sparc64 ELF linker hash table. */
628 struct sparc64_elf_app_reg
631 unsigned short shndx;
636 struct sparc64_elf_link_hash_table
638 struct elf_link_hash_table root;
640 struct sparc64_elf_app_reg app_regs [4];
643 /* Get the Sparc64 ELF linker hash table from a link_info structure. */
645 #define sparc64_elf_hash_table(p) \
646 ((struct sparc64_elf_link_hash_table *) ((p)->hash))
648 /* Create a Sparc64 ELF linker hash table. */
650 static struct bfd_link_hash_table *
651 sparc64_elf_bfd_link_hash_table_create (abfd)
654 struct sparc64_elf_link_hash_table *ret;
655 bfd_size_type amt = sizeof (struct sparc64_elf_link_hash_table);
657 ret = (struct sparc64_elf_link_hash_table *) bfd_zalloc (abfd, amt);
658 if (ret == (struct sparc64_elf_link_hash_table *) NULL)
661 if (! _bfd_elf_link_hash_table_init (&ret->root, abfd,
662 _bfd_elf_link_hash_newfunc))
664 bfd_release (abfd, ret);
668 return &ret->root.root;
671 /* Utility for performing the standard initial work of an instruction
673 *PRELOCATION will contain the relocated item.
674 *PINSN will contain the instruction from the input stream.
675 If the result is `bfd_reloc_other' the caller can continue with
676 performing the relocation. Otherwise it must stop and return the
677 value to its caller. */
679 static bfd_reloc_status_type
680 init_insn_reloc (abfd,
689 arelent *reloc_entry;
692 asection *input_section;
694 bfd_vma *prelocation;
698 reloc_howto_type *howto = reloc_entry->howto;
700 if (output_bfd != (bfd *) NULL
701 && (symbol->flags & BSF_SECTION_SYM) == 0
702 && (! howto->partial_inplace
703 || reloc_entry->addend == 0))
705 reloc_entry->address += input_section->output_offset;
709 /* This works because partial_inplace == false. */
710 if (output_bfd != NULL)
711 return bfd_reloc_continue;
713 if (reloc_entry->address > input_section->_cooked_size)
714 return bfd_reloc_outofrange;
716 relocation = (symbol->value
717 + symbol->section->output_section->vma
718 + symbol->section->output_offset);
719 relocation += reloc_entry->addend;
720 if (howto->pc_relative)
722 relocation -= (input_section->output_section->vma
723 + input_section->output_offset);
724 relocation -= reloc_entry->address;
727 *prelocation = relocation;
728 *pinsn = bfd_get_32 (abfd, (bfd_byte *) data + reloc_entry->address);
729 return bfd_reloc_other;
732 /* For unsupported relocs. */
734 static bfd_reloc_status_type
735 sparc_elf_notsup_reloc (abfd,
742 bfd *abfd ATTRIBUTE_UNUSED;
743 arelent *reloc_entry ATTRIBUTE_UNUSED;
744 asymbol *symbol ATTRIBUTE_UNUSED;
745 PTR data ATTRIBUTE_UNUSED;
746 asection *input_section ATTRIBUTE_UNUSED;
747 bfd *output_bfd ATTRIBUTE_UNUSED;
748 char **error_message ATTRIBUTE_UNUSED;
750 return bfd_reloc_notsupported;
753 /* Handle the WDISP16 reloc. */
755 static bfd_reloc_status_type
756 sparc_elf_wdisp16_reloc (abfd, reloc_entry, symbol, data, input_section,
757 output_bfd, error_message)
759 arelent *reloc_entry;
762 asection *input_section;
764 char **error_message ATTRIBUTE_UNUSED;
768 bfd_reloc_status_type status;
770 status = init_insn_reloc (abfd, reloc_entry, symbol, data,
771 input_section, output_bfd, &relocation, &insn);
772 if (status != bfd_reloc_other)
775 insn &= ~ (bfd_vma) 0x303fff;
776 insn |= (((relocation >> 2) & 0xc000) << 6) | ((relocation >> 2) & 0x3fff);
777 bfd_put_32 (abfd, insn, (bfd_byte *) data + reloc_entry->address);
779 if ((bfd_signed_vma) relocation < - 0x40000
780 || (bfd_signed_vma) relocation > 0x3ffff)
781 return bfd_reloc_overflow;
786 /* Handle the HIX22 reloc. */
788 static bfd_reloc_status_type
789 sparc_elf_hix22_reloc (abfd,
797 arelent *reloc_entry;
800 asection *input_section;
802 char **error_message ATTRIBUTE_UNUSED;
806 bfd_reloc_status_type status;
808 status = init_insn_reloc (abfd, reloc_entry, symbol, data,
809 input_section, output_bfd, &relocation, &insn);
810 if (status != bfd_reloc_other)
813 relocation ^= MINUS_ONE;
814 insn = (insn &~ (bfd_vma) 0x3fffff) | ((relocation >> 10) & 0x3fffff);
815 bfd_put_32 (abfd, insn, (bfd_byte *) data + reloc_entry->address);
817 if ((relocation & ~ (bfd_vma) 0xffffffff) != 0)
818 return bfd_reloc_overflow;
823 /* Handle the LOX10 reloc. */
825 static bfd_reloc_status_type
826 sparc_elf_lox10_reloc (abfd,
834 arelent *reloc_entry;
837 asection *input_section;
839 char **error_message ATTRIBUTE_UNUSED;
843 bfd_reloc_status_type status;
845 status = init_insn_reloc (abfd, reloc_entry, symbol, data,
846 input_section, output_bfd, &relocation, &insn);
847 if (status != bfd_reloc_other)
850 insn = (insn &~ (bfd_vma) 0x1fff) | 0x1c00 | (relocation & 0x3ff);
851 bfd_put_32 (abfd, insn, (bfd_byte *) data + reloc_entry->address);
858 /* Both the headers and the entries are icache aligned. */
859 #define PLT_ENTRY_SIZE 32
860 #define PLT_HEADER_SIZE (4 * PLT_ENTRY_SIZE)
861 #define LARGE_PLT_THRESHOLD 32768
862 #define GOT_RESERVED_ENTRIES 1
864 #define ELF_DYNAMIC_INTERPRETER "/usr/lib/sparcv9/ld.so.1"
866 /* Fill in the .plt section. */
869 sparc64_elf_build_plt (output_bfd, contents, nentries)
871 unsigned char *contents;
874 const unsigned int nop = 0x01000000;
877 /* The first four entries are reserved, and are initially undefined.
878 We fill them with `illtrap 0' to force ld.so to do something. */
880 for (i = 0; i < PLT_HEADER_SIZE/4; ++i)
881 bfd_put_32 (output_bfd, (bfd_vma) 0, contents+i*4);
883 /* The first 32768 entries are close enough to plt1 to get there via
884 a straight branch. */
886 for (i = 4; i < LARGE_PLT_THRESHOLD && i < nentries; ++i)
888 unsigned char *entry = contents + i * PLT_ENTRY_SIZE;
889 unsigned int sethi, ba;
891 /* sethi (. - plt0), %g1 */
892 sethi = 0x03000000 | (i * PLT_ENTRY_SIZE);
894 /* ba,a,pt %xcc, plt1 */
895 ba = 0x30680000 | (((contents+PLT_ENTRY_SIZE) - (entry+4)) / 4 & 0x7ffff);
897 bfd_put_32 (output_bfd, (bfd_vma) sethi, entry);
898 bfd_put_32 (output_bfd, (bfd_vma) ba, entry + 4);
899 bfd_put_32 (output_bfd, (bfd_vma) nop, entry + 8);
900 bfd_put_32 (output_bfd, (bfd_vma) nop, entry + 12);
901 bfd_put_32 (output_bfd, (bfd_vma) nop, entry + 16);
902 bfd_put_32 (output_bfd, (bfd_vma) nop, entry + 20);
903 bfd_put_32 (output_bfd, (bfd_vma) nop, entry + 24);
904 bfd_put_32 (output_bfd, (bfd_vma) nop, entry + 28);
907 /* Now the tricky bit. Entries 32768 and higher are grouped in blocks of
908 160: 160 entries and 160 pointers. This is to separate code from data,
909 which is much friendlier on the cache. */
911 for (; i < nentries; i += 160)
913 int block = (i + 160 <= nentries ? 160 : nentries - i);
914 for (j = 0; j < block; ++j)
916 unsigned char *entry, *ptr;
919 entry = contents + i*PLT_ENTRY_SIZE + j*4*6;
920 ptr = contents + i*PLT_ENTRY_SIZE + block*4*6 + j*8;
922 /* ldx [%o7 + ptr - (entry+4)], %g1 */
923 ldx = 0xc25be000 | ((ptr - (entry+4)) & 0x1fff);
931 bfd_put_32 (output_bfd, (bfd_vma) 0x8a10000f, entry);
932 bfd_put_32 (output_bfd, (bfd_vma) 0x40000002, entry + 4);
933 bfd_put_32 (output_bfd, (bfd_vma) nop, entry + 8);
934 bfd_put_32 (output_bfd, (bfd_vma) ldx, entry + 12);
935 bfd_put_32 (output_bfd, (bfd_vma) 0x83c3c001, entry + 16);
936 bfd_put_32 (output_bfd, (bfd_vma) 0x9e100005, entry + 20);
938 bfd_put_64 (output_bfd, (bfd_vma) (contents - (entry + 4)), ptr);
943 /* Return the offset of a particular plt entry within the .plt section. */
946 sparc64_elf_plt_entry_offset (index)
951 if (index < LARGE_PLT_THRESHOLD)
952 return index * PLT_ENTRY_SIZE;
954 /* See above for details. */
956 block = (index - LARGE_PLT_THRESHOLD) / 160;
957 ofs = (index - LARGE_PLT_THRESHOLD) % 160;
959 return (LARGE_PLT_THRESHOLD + block * 160) * PLT_ENTRY_SIZE + ofs * 6 * 4;
963 sparc64_elf_plt_ptr_offset (index, max)
967 bfd_vma block, ofs, last;
969 BFD_ASSERT(index >= LARGE_PLT_THRESHOLD);
971 /* See above for details. */
973 block = (((index - LARGE_PLT_THRESHOLD) / 160) * 160) + LARGE_PLT_THRESHOLD;
975 if (block + 160 > max)
976 last = (max - LARGE_PLT_THRESHOLD) % 160;
980 return (block * PLT_ENTRY_SIZE
985 /* Look through the relocs for a section during the first phase, and
986 allocate space in the global offset table or procedure linkage
990 sparc64_elf_check_relocs (abfd, info, sec, relocs)
992 struct bfd_link_info *info;
994 const Elf_Internal_Rela *relocs;
997 Elf_Internal_Shdr *symtab_hdr;
998 struct elf_link_hash_entry **sym_hashes;
999 bfd_vma *local_got_offsets;
1000 const Elf_Internal_Rela *rel;
1001 const Elf_Internal_Rela *rel_end;
1006 if (info->relocateable || !(sec->flags & SEC_ALLOC))
1009 dynobj = elf_hash_table (info)->dynobj;
1010 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
1011 sym_hashes = elf_sym_hashes (abfd);
1012 local_got_offsets = elf_local_got_offsets (abfd);
1018 rel_end = relocs + NUM_SHDR_ENTRIES (& elf_section_data (sec)->rel_hdr);
1019 for (rel = relocs; rel < rel_end; rel++)
1021 unsigned long r_symndx;
1022 struct elf_link_hash_entry *h;
1024 r_symndx = ELF64_R_SYM (rel->r_info);
1025 if (r_symndx < symtab_hdr->sh_info)
1028 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
1030 switch (ELF64_R_TYPE_ID (rel->r_info))
1035 /* This symbol requires a global offset table entry. */
1039 /* Create the .got section. */
1040 elf_hash_table (info)->dynobj = dynobj = abfd;
1041 if (! _bfd_elf_create_got_section (dynobj, info))
1047 sgot = bfd_get_section_by_name (dynobj, ".got");
1048 BFD_ASSERT (sgot != NULL);
1051 if (srelgot == NULL && (h != NULL || info->shared))
1053 srelgot = bfd_get_section_by_name (dynobj, ".rela.got");
1054 if (srelgot == NULL)
1056 srelgot = bfd_make_section (dynobj, ".rela.got");
1058 || ! bfd_set_section_flags (dynobj, srelgot,
1063 | SEC_LINKER_CREATED
1065 || ! bfd_set_section_alignment (dynobj, srelgot, 3))
1072 if (h->got.offset != (bfd_vma) -1)
1074 /* We have already allocated space in the .got. */
1077 h->got.offset = sgot->_raw_size;
1079 /* Make sure this symbol is output as a dynamic symbol. */
1080 if (h->dynindx == -1)
1082 if (! bfd_elf64_link_record_dynamic_symbol (info, h))
1086 srelgot->_raw_size += sizeof (Elf64_External_Rela);
1090 /* This is a global offset table entry for a local
1092 if (local_got_offsets == NULL)
1095 register unsigned int i;
1097 size = symtab_hdr->sh_info;
1098 size *= sizeof (bfd_vma);
1099 local_got_offsets = (bfd_vma *) bfd_alloc (abfd, size);
1100 if (local_got_offsets == NULL)
1102 elf_local_got_offsets (abfd) = local_got_offsets;
1103 for (i = 0; i < symtab_hdr->sh_info; i++)
1104 local_got_offsets[i] = (bfd_vma) -1;
1106 if (local_got_offsets[r_symndx] != (bfd_vma) -1)
1108 /* We have already allocated space in the .got. */
1111 local_got_offsets[r_symndx] = sgot->_raw_size;
1115 /* If we are generating a shared object, we need to
1116 output a R_SPARC_RELATIVE reloc so that the
1117 dynamic linker can adjust this GOT entry. */
1118 srelgot->_raw_size += sizeof (Elf64_External_Rela);
1122 sgot->_raw_size += 8;
1125 /* Doesn't work for 64-bit -fPIC, since sethi/or builds
1126 unsigned numbers. If we permit ourselves to modify
1127 code so we get sethi/xor, this could work.
1128 Question: do we consider conditionally re-enabling
1129 this for -fpic, once we know about object code models? */
1130 /* If the .got section is more than 0x1000 bytes, we add
1131 0x1000 to the value of _GLOBAL_OFFSET_TABLE_, so that 13
1132 bit relocations have a greater chance of working. */
1133 if (sgot->_raw_size >= 0x1000
1134 && elf_hash_table (info)->hgot->root.u.def.value == 0)
1135 elf_hash_table (info)->hgot->root.u.def.value = 0x1000;
1140 case R_SPARC_WPLT30:
1142 case R_SPARC_HIPLT22:
1143 case R_SPARC_LOPLT10:
1144 case R_SPARC_PCPLT32:
1145 case R_SPARC_PCPLT22:
1146 case R_SPARC_PCPLT10:
1148 /* This symbol requires a procedure linkage table entry. We
1149 actually build the entry in adjust_dynamic_symbol,
1150 because this might be a case of linking PIC code without
1151 linking in any dynamic objects, in which case we don't
1152 need to generate a procedure linkage table after all. */
1156 /* It does not make sense to have a procedure linkage
1157 table entry for a local symbol. */
1158 bfd_set_error (bfd_error_bad_value);
1162 /* Make sure this symbol is output as a dynamic symbol. */
1163 if (h->dynindx == -1)
1165 if (! bfd_elf64_link_record_dynamic_symbol (info, h))
1169 h->elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_PLT;
1174 case R_SPARC_PC_HH22:
1175 case R_SPARC_PC_HM10:
1176 case R_SPARC_PC_LM22:
1178 && strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)
1182 case R_SPARC_DISP16:
1183 case R_SPARC_DISP32:
1184 case R_SPARC_DISP64:
1185 case R_SPARC_WDISP30:
1186 case R_SPARC_WDISP22:
1187 case R_SPARC_WDISP19:
1188 case R_SPARC_WDISP16:
1217 /* When creating a shared object, we must copy these relocs
1218 into the output file. We create a reloc section in
1219 dynobj and make room for the reloc.
1221 But don't do this for debugging sections -- this shows up
1222 with DWARF2 -- first because they are not loaded, and
1223 second because DWARF sez the debug info is not to be
1224 biased by the load address. */
1225 if (info->shared && (sec->flags & SEC_ALLOC))
1231 name = (bfd_elf_string_from_elf_section
1233 elf_elfheader (abfd)->e_shstrndx,
1234 elf_section_data (sec)->rel_hdr.sh_name));
1238 BFD_ASSERT (strncmp (name, ".rela", 5) == 0
1239 && strcmp (bfd_get_section_name (abfd, sec),
1242 sreloc = bfd_get_section_by_name (dynobj, name);
1247 sreloc = bfd_make_section (dynobj, name);
1248 flags = (SEC_HAS_CONTENTS | SEC_READONLY
1249 | SEC_IN_MEMORY | SEC_LINKER_CREATED);
1250 if ((sec->flags & SEC_ALLOC) != 0)
1251 flags |= SEC_ALLOC | SEC_LOAD;
1253 || ! bfd_set_section_flags (dynobj, sreloc, flags)
1254 || ! bfd_set_section_alignment (dynobj, sreloc, 3))
1257 if (sec->flags & SEC_READONLY)
1258 info->flags |= DF_TEXTREL;
1261 sreloc->_raw_size += sizeof (Elf64_External_Rela);
1265 case R_SPARC_REGISTER:
1266 /* Nothing to do. */
1270 (*_bfd_error_handler) (_("%s: check_relocs: unhandled reloc type %d"),
1271 bfd_archive_filename (abfd),
1272 ELF64_R_TYPE_ID (rel->r_info));
1280 /* Hook called by the linker routine which adds symbols from an object
1281 file. We use it for STT_REGISTER symbols. */
1284 sparc64_elf_add_symbol_hook (abfd, info, sym, namep, flagsp, secp, valp)
1286 struct bfd_link_info *info;
1287 const Elf_Internal_Sym *sym;
1289 flagword *flagsp ATTRIBUTE_UNUSED;
1290 asection **secp ATTRIBUTE_UNUSED;
1291 bfd_vma *valp ATTRIBUTE_UNUSED;
1293 static const char *const stt_types[] = { "NOTYPE", "OBJECT", "FUNCTION" };
1295 if (ELF_ST_TYPE (sym->st_info) == STT_REGISTER)
1298 struct sparc64_elf_app_reg *p;
1300 reg = (int)sym->st_value;
1303 case 2: reg -= 2; break;
1304 case 6: reg -= 4; break;
1306 (*_bfd_error_handler)
1307 (_("%s: Only registers %%g[2367] can be declared using STT_REGISTER"),
1308 bfd_archive_filename (abfd));
1312 if (info->hash->creator != abfd->xvec
1313 || (abfd->flags & DYNAMIC) != 0)
1315 /* STT_REGISTER only works when linking an elf64_sparc object.
1316 If STT_REGISTER comes from a dynamic object, don't put it into
1317 the output bfd. The dynamic linker will recheck it. */
1322 p = sparc64_elf_hash_table(info)->app_regs + reg;
1324 if (p->name != NULL && strcmp (p->name, *namep))
1326 (*_bfd_error_handler)
1327 (_("Register %%g%d used incompatibly: %s in %s"),
1328 (int) sym->st_value,
1329 **namep ? *namep : "#scratch", bfd_archive_filename (abfd));
1330 (*_bfd_error_handler)
1331 (_(" previously %s in %s"),
1332 *p->name ? p->name : "#scratch", bfd_archive_filename (p->abfd));
1336 if (p->name == NULL)
1340 struct elf_link_hash_entry *h;
1342 h = (struct elf_link_hash_entry *)
1343 bfd_link_hash_lookup (info->hash, *namep, false, false, false);
1347 unsigned char type = h->type;
1349 if (type > STT_FUNC)
1351 (*_bfd_error_handler)
1352 (_("Symbol `%s' has differing types: %s in %s"),
1353 *namep, "REGISTER", bfd_archive_filename (abfd));
1354 (*_bfd_error_handler)
1355 (_(" previously %s in %s"),
1356 stt_types[type], bfd_archive_filename (p->abfd));
1360 p->name = bfd_hash_allocate (&info->hash->table,
1361 strlen (*namep) + 1);
1365 strcpy (p->name, *namep);
1369 p->bind = ELF_ST_BIND (sym->st_info);
1371 p->shndx = sym->st_shndx;
1375 if (p->bind == STB_WEAK
1376 && ELF_ST_BIND (sym->st_info) == STB_GLOBAL)
1378 p->bind = STB_GLOBAL;
1385 else if (! *namep || ! **namep)
1390 struct sparc64_elf_app_reg *p;
1392 p = sparc64_elf_hash_table(info)->app_regs;
1393 for (i = 0; i < 4; i++, p++)
1394 if (p->name != NULL && ! strcmp (p->name, *namep))
1396 unsigned char type = ELF_ST_TYPE (sym->st_info);
1398 if (type > STT_FUNC)
1400 (*_bfd_error_handler)
1401 (_("Symbol `%s' has differing types: %s in %s"),
1402 *namep, stt_types[type], bfd_archive_filename (abfd));
1403 (*_bfd_error_handler)
1404 (_(" previously %s in %s"),
1405 "REGISTER", bfd_archive_filename (p->abfd));
1412 /* This function takes care of emiting STT_REGISTER symbols
1413 which we cannot easily keep in the symbol hash table. */
1416 sparc64_elf_output_arch_syms (output_bfd, info, finfo, func)
1417 bfd *output_bfd ATTRIBUTE_UNUSED;
1418 struct bfd_link_info *info;
1420 boolean (*func) PARAMS ((PTR, const char *,
1421 Elf_Internal_Sym *, asection *));
1424 struct sparc64_elf_app_reg *app_regs =
1425 sparc64_elf_hash_table(info)->app_regs;
1426 Elf_Internal_Sym sym;
1428 /* We arranged in size_dynamic_sections to put the STT_REGISTER entries
1429 at the end of the dynlocal list, so they came at the end of the local
1430 symbols in the symtab. Except that they aren't STB_LOCAL, so we need
1431 to back up symtab->sh_info. */
1432 if (elf_hash_table (info)->dynlocal)
1434 bfd * dynobj = elf_hash_table (info)->dynobj;
1435 asection *dynsymsec = bfd_get_section_by_name (dynobj, ".dynsym");
1436 struct elf_link_local_dynamic_entry *e;
1438 for (e = elf_hash_table (info)->dynlocal; e ; e = e->next)
1439 if (e->input_indx == -1)
1443 elf_section_data (dynsymsec->output_section)->this_hdr.sh_info
1448 if (info->strip == strip_all)
1451 for (reg = 0; reg < 4; reg++)
1452 if (app_regs [reg].name != NULL)
1454 if (info->strip == strip_some
1455 && bfd_hash_lookup (info->keep_hash,
1456 app_regs [reg].name,
1457 false, false) == NULL)
1460 sym.st_value = reg < 2 ? reg + 2 : reg + 4;
1463 sym.st_info = ELF_ST_INFO (app_regs [reg].bind, STT_REGISTER);
1464 sym.st_shndx = app_regs [reg].shndx;
1465 if (! (*func) (finfo, app_regs [reg].name, &sym,
1466 sym.st_shndx == SHN_ABS
1467 ? bfd_abs_section_ptr : bfd_und_section_ptr))
1475 sparc64_elf_get_symbol_type (elf_sym, type)
1476 Elf_Internal_Sym * elf_sym;
1479 if (ELF_ST_TYPE (elf_sym->st_info) == STT_REGISTER)
1480 return STT_REGISTER;
1485 /* A STB_GLOBAL,STT_REGISTER symbol should be BSF_GLOBAL
1486 even in SHN_UNDEF section. */
1489 sparc64_elf_symbol_processing (abfd, asym)
1490 bfd *abfd ATTRIBUTE_UNUSED;
1493 elf_symbol_type *elfsym;
1495 elfsym = (elf_symbol_type *) asym;
1496 if (elfsym->internal_elf_sym.st_info
1497 == ELF_ST_INFO (STB_GLOBAL, STT_REGISTER))
1499 asym->flags |= BSF_GLOBAL;
1503 /* Adjust a symbol defined by a dynamic object and referenced by a
1504 regular object. The current definition is in some section of the
1505 dynamic object, but we're not including those sections. We have to
1506 change the definition to something the rest of the link can
1510 sparc64_elf_adjust_dynamic_symbol (info, h)
1511 struct bfd_link_info *info;
1512 struct elf_link_hash_entry *h;
1516 unsigned int power_of_two;
1518 dynobj = elf_hash_table (info)->dynobj;
1520 /* Make sure we know what is going on here. */
1521 BFD_ASSERT (dynobj != NULL
1522 && ((h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_PLT)
1523 || h->weakdef != NULL
1524 || ((h->elf_link_hash_flags
1525 & ELF_LINK_HASH_DEF_DYNAMIC) != 0
1526 && (h->elf_link_hash_flags
1527 & ELF_LINK_HASH_REF_REGULAR) != 0
1528 && (h->elf_link_hash_flags
1529 & ELF_LINK_HASH_DEF_REGULAR) == 0)));
1531 /* If this is a function, put it in the procedure linkage table. We
1532 will fill in the contents of the procedure linkage table later
1533 (although we could actually do it here). The STT_NOTYPE
1534 condition is a hack specifically for the Oracle libraries
1535 delivered for Solaris; for some inexplicable reason, they define
1536 some of their functions as STT_NOTYPE when they really should be
1538 if (h->type == STT_FUNC
1539 || (h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_PLT) != 0
1540 || (h->type == STT_NOTYPE
1541 && (h->root.type == bfd_link_hash_defined
1542 || h->root.type == bfd_link_hash_defweak)
1543 && (h->root.u.def.section->flags & SEC_CODE) != 0))
1545 if (! elf_hash_table (info)->dynamic_sections_created)
1547 /* This case can occur if we saw a WPLT30 reloc in an input
1548 file, but none of the input files were dynamic objects.
1549 In such a case, we don't actually need to build a
1550 procedure linkage table, and we can just do a WDISP30
1552 BFD_ASSERT ((h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_PLT) != 0);
1556 s = bfd_get_section_by_name (dynobj, ".plt");
1557 BFD_ASSERT (s != NULL);
1559 /* The first four bit in .plt is reserved. */
1560 if (s->_raw_size == 0)
1561 s->_raw_size = PLT_HEADER_SIZE;
1563 /* If this symbol is not defined in a regular file, and we are
1564 not generating a shared library, then set the symbol to this
1565 location in the .plt. This is required to make function
1566 pointers compare as equal between the normal executable and
1567 the shared library. */
1569 && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0)
1571 h->root.u.def.section = s;
1572 h->root.u.def.value = s->_raw_size;
1575 /* To simplify matters later, just store the plt index here. */
1576 h->plt.offset = s->_raw_size / PLT_ENTRY_SIZE;
1578 /* Make room for this entry. */
1579 s->_raw_size += PLT_ENTRY_SIZE;
1581 /* We also need to make an entry in the .rela.plt section. */
1583 s = bfd_get_section_by_name (dynobj, ".rela.plt");
1584 BFD_ASSERT (s != NULL);
1586 s->_raw_size += sizeof (Elf64_External_Rela);
1588 /* The procedure linkage table size is bounded by the magnitude
1589 of the offset we can describe in the entry. */
1590 if (s->_raw_size >= (bfd_vma)1 << 32)
1592 bfd_set_error (bfd_error_bad_value);
1599 /* If this is a weak symbol, and there is a real definition, the
1600 processor independent code will have arranged for us to see the
1601 real definition first, and we can just use the same value. */
1602 if (h->weakdef != NULL)
1604 BFD_ASSERT (h->weakdef->root.type == bfd_link_hash_defined
1605 || h->weakdef->root.type == bfd_link_hash_defweak);
1606 h->root.u.def.section = h->weakdef->root.u.def.section;
1607 h->root.u.def.value = h->weakdef->root.u.def.value;
1611 /* This is a reference to a symbol defined by a dynamic object which
1612 is not a function. */
1614 /* If we are creating a shared library, we must presume that the
1615 only references to the symbol are via the global offset table.
1616 For such cases we need not do anything here; the relocations will
1617 be handled correctly by relocate_section. */
1621 /* We must allocate the symbol in our .dynbss section, which will
1622 become part of the .bss section of the executable. There will be
1623 an entry for this symbol in the .dynsym section. The dynamic
1624 object will contain position independent code, so all references
1625 from the dynamic object to this symbol will go through the global
1626 offset table. The dynamic linker will use the .dynsym entry to
1627 determine the address it must put in the global offset table, so
1628 both the dynamic object and the regular object will refer to the
1629 same memory location for the variable. */
1631 s = bfd_get_section_by_name (dynobj, ".dynbss");
1632 BFD_ASSERT (s != NULL);
1634 /* We must generate a R_SPARC_COPY reloc to tell the dynamic linker
1635 to copy the initial value out of the dynamic object and into the
1636 runtime process image. We need to remember the offset into the
1637 .rel.bss section we are going to use. */
1638 if ((h->root.u.def.section->flags & SEC_ALLOC) != 0)
1642 srel = bfd_get_section_by_name (dynobj, ".rela.bss");
1643 BFD_ASSERT (srel != NULL);
1644 srel->_raw_size += sizeof (Elf64_External_Rela);
1645 h->elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_COPY;
1648 /* We need to figure out the alignment required for this symbol. I
1649 have no idea how ELF linkers handle this. 16-bytes is the size
1650 of the largest type that requires hard alignment -- long double. */
1651 power_of_two = bfd_log2 (h->size);
1652 if (power_of_two > 4)
1655 /* Apply the required alignment. */
1656 s->_raw_size = BFD_ALIGN (s->_raw_size,
1657 (bfd_size_type) (1 << power_of_two));
1658 if (power_of_two > bfd_get_section_alignment (dynobj, s))
1660 if (! bfd_set_section_alignment (dynobj, s, power_of_two))
1664 /* Define the symbol as being at this point in the section. */
1665 h->root.u.def.section = s;
1666 h->root.u.def.value = s->_raw_size;
1668 /* Increment the section size to make room for the symbol. */
1669 s->_raw_size += h->size;
1674 /* Set the sizes of the dynamic sections. */
1677 sparc64_elf_size_dynamic_sections (output_bfd, info)
1679 struct bfd_link_info *info;
1685 dynobj = elf_hash_table (info)->dynobj;
1686 BFD_ASSERT (dynobj != NULL);
1688 if (elf_hash_table (info)->dynamic_sections_created)
1690 /* Set the contents of the .interp section to the interpreter. */
1693 s = bfd_get_section_by_name (dynobj, ".interp");
1694 BFD_ASSERT (s != NULL);
1695 s->_raw_size = sizeof ELF_DYNAMIC_INTERPRETER;
1696 s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
1701 /* We may have created entries in the .rela.got section.
1702 However, if we are not creating the dynamic sections, we will
1703 not actually use these entries. Reset the size of .rela.got,
1704 which will cause it to get stripped from the output file
1706 s = bfd_get_section_by_name (dynobj, ".rela.got");
1711 /* The check_relocs and adjust_dynamic_symbol entry points have
1712 determined the sizes of the various dynamic sections. Allocate
1715 for (s = dynobj->sections; s != NULL; s = s->next)
1720 if ((s->flags & SEC_LINKER_CREATED) == 0)
1723 /* It's OK to base decisions on the section name, because none
1724 of the dynobj section names depend upon the input files. */
1725 name = bfd_get_section_name (dynobj, s);
1729 if (strncmp (name, ".rela", 5) == 0)
1731 if (s->_raw_size == 0)
1733 /* If we don't need this section, strip it from the
1734 output file. This is to handle .rela.bss and
1735 .rel.plt. We must create it in
1736 create_dynamic_sections, because it must be created
1737 before the linker maps input sections to output
1738 sections. The linker does that before
1739 adjust_dynamic_symbol is called, and it is that
1740 function which decides whether anything needs to go
1741 into these sections. */
1746 if (strcmp (name, ".rela.plt") == 0)
1749 /* We use the reloc_count field as a counter if we need
1750 to copy relocs into the output file. */
1754 else if (strcmp (name, ".plt") != 0
1755 && strncmp (name, ".got", 4) != 0)
1757 /* It's not one of our sections, so don't allocate space. */
1763 _bfd_strip_section_from_output (info, s);
1767 /* Allocate memory for the section contents. Zero the memory
1768 for the benefit of .rela.plt, which has 4 unused entries
1769 at the beginning, and we don't want garbage. */
1770 s->contents = (bfd_byte *) bfd_zalloc (dynobj, s->_raw_size);
1771 if (s->contents == NULL && s->_raw_size != 0)
1775 if (elf_hash_table (info)->dynamic_sections_created)
1777 /* Add some entries to the .dynamic section. We fill in the
1778 values later, in sparc64_elf_finish_dynamic_sections, but we
1779 must add the entries now so that we get the correct size for
1780 the .dynamic section. The DT_DEBUG entry is filled in by the
1781 dynamic linker and used by the debugger. */
1782 #define add_dynamic_entry(TAG, VAL) \
1783 bfd_elf64_add_dynamic_entry (info, (bfd_vma) (TAG), (bfd_vma) (VAL))
1786 struct sparc64_elf_app_reg * app_regs;
1787 struct elf_strtab_hash *dynstr;
1788 struct elf_link_hash_table *eht = elf_hash_table (info);
1792 if (!add_dynamic_entry (DT_DEBUG, 0))
1798 if (!add_dynamic_entry (DT_PLTGOT, 0)
1799 || !add_dynamic_entry (DT_PLTRELSZ, 0)
1800 || !add_dynamic_entry (DT_PLTREL, DT_RELA)
1801 || !add_dynamic_entry (DT_JMPREL, 0))
1805 if (!add_dynamic_entry (DT_RELA, 0)
1806 || !add_dynamic_entry (DT_RELASZ, 0)
1807 || !add_dynamic_entry (DT_RELAENT, sizeof (Elf64_External_Rela)))
1810 if (info->flags & DF_TEXTREL)
1812 if (!add_dynamic_entry (DT_TEXTREL, 0))
1816 /* Add dynamic STT_REGISTER symbols and corresponding DT_SPARC_REGISTER
1817 entries if needed. */
1818 app_regs = sparc64_elf_hash_table (info)->app_regs;
1819 dynstr = eht->dynstr;
1821 for (reg = 0; reg < 4; reg++)
1822 if (app_regs [reg].name != NULL)
1824 struct elf_link_local_dynamic_entry *entry, *e;
1826 if (!add_dynamic_entry (DT_SPARC_REGISTER, 0))
1829 entry = (struct elf_link_local_dynamic_entry *)
1830 bfd_hash_allocate (&info->hash->table, sizeof (*entry));
1834 /* We cheat here a little bit: the symbol will not be local, so we
1835 put it at the end of the dynlocal linked list. We will fix it
1836 later on, as we have to fix other fields anyway. */
1837 entry->isym.st_value = reg < 2 ? reg + 2 : reg + 4;
1838 entry->isym.st_size = 0;
1839 if (*app_regs [reg].name != '\0')
1841 = _bfd_elf_strtab_add (dynstr, app_regs[reg].name, false);
1843 entry->isym.st_name = 0;
1844 entry->isym.st_other = 0;
1845 entry->isym.st_info = ELF_ST_INFO (app_regs [reg].bind,
1847 entry->isym.st_shndx = app_regs [reg].shndx;
1849 entry->input_bfd = output_bfd;
1850 entry->input_indx = -1;
1852 if (eht->dynlocal == NULL)
1853 eht->dynlocal = entry;
1856 for (e = eht->dynlocal; e->next; e = e->next)
1863 #undef add_dynamic_entry
1868 #define SET_SEC_DO_RELAX(section) do { elf_section_data(section)->tdata = (void *)1; } while (0)
1869 #define SEC_DO_RELAX(section) (elf_section_data(section)->tdata == (void *)1)
1872 sparc64_elf_relax_section (abfd, section, link_info, again)
1873 bfd *abfd ATTRIBUTE_UNUSED;
1874 asection *section ATTRIBUTE_UNUSED;
1875 struct bfd_link_info *link_info ATTRIBUTE_UNUSED;
1879 SET_SEC_DO_RELAX (section);
1883 /* Relocate a SPARC64 ELF section. */
1886 sparc64_elf_relocate_section (output_bfd, info, input_bfd, input_section,
1887 contents, relocs, local_syms, local_sections)
1889 struct bfd_link_info *info;
1891 asection *input_section;
1893 Elf_Internal_Rela *relocs;
1894 Elf_Internal_Sym *local_syms;
1895 asection **local_sections;
1898 Elf_Internal_Shdr *symtab_hdr;
1899 struct elf_link_hash_entry **sym_hashes;
1900 bfd_vma *local_got_offsets;
1905 Elf_Internal_Rela *rel;
1906 Elf_Internal_Rela *relend;
1908 dynobj = elf_hash_table (info)->dynobj;
1909 symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
1910 sym_hashes = elf_sym_hashes (input_bfd);
1911 local_got_offsets = elf_local_got_offsets (input_bfd);
1913 if (elf_hash_table(info)->hgot == NULL)
1916 got_base = elf_hash_table (info)->hgot->root.u.def.value;
1918 sgot = splt = sreloc = NULL;
1921 relend = relocs + NUM_SHDR_ENTRIES (& elf_section_data (input_section)->rel_hdr);
1922 for (; rel < relend; rel++)
1925 reloc_howto_type *howto;
1926 unsigned long r_symndx;
1927 struct elf_link_hash_entry *h;
1928 Elf_Internal_Sym *sym;
1931 bfd_reloc_status_type r;
1933 r_type = ELF64_R_TYPE_ID (rel->r_info);
1934 if (r_type < 0 || r_type >= (int) R_SPARC_max_std)
1936 bfd_set_error (bfd_error_bad_value);
1939 howto = sparc64_elf_howto_table + r_type;
1941 r_symndx = ELF64_R_SYM (rel->r_info);
1943 if (info->relocateable)
1945 /* This is a relocateable link. We don't have to change
1946 anything, unless the reloc is against a section symbol,
1947 in which case we have to adjust according to where the
1948 section symbol winds up in the output section. */
1949 if (r_symndx < symtab_hdr->sh_info)
1951 sym = local_syms + r_symndx;
1952 if (ELF_ST_TYPE (sym->st_info) == STT_SECTION)
1954 sec = local_sections[r_symndx];
1955 rel->r_addend += sec->output_offset + sym->st_value;
1962 /* This is a final link. */
1966 if (r_symndx < symtab_hdr->sh_info)
1968 sym = local_syms + r_symndx;
1969 sec = local_sections[r_symndx];
1970 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, sec, rel);
1974 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
1975 while (h->root.type == bfd_link_hash_indirect
1976 || h->root.type == bfd_link_hash_warning)
1977 h = (struct elf_link_hash_entry *) h->root.u.i.link;
1978 if (h->root.type == bfd_link_hash_defined
1979 || h->root.type == bfd_link_hash_defweak)
1981 boolean skip_it = false;
1982 sec = h->root.u.def.section;
1986 case R_SPARC_WPLT30:
1988 case R_SPARC_HIPLT22:
1989 case R_SPARC_LOPLT10:
1990 case R_SPARC_PCPLT32:
1991 case R_SPARC_PCPLT22:
1992 case R_SPARC_PCPLT10:
1994 if (h->plt.offset != (bfd_vma) -1)
2001 if (elf_hash_table(info)->dynamic_sections_created
2003 || (!info->symbolic && h->dynindx != -1)
2004 || !(h->elf_link_hash_flags
2005 & ELF_LINK_HASH_DEF_REGULAR)))
2011 case R_SPARC_PC_HH22:
2012 case R_SPARC_PC_HM10:
2013 case R_SPARC_PC_LM22:
2014 if (!strcmp(h->root.root.string, "_GLOBAL_OFFSET_TABLE_"))
2022 case R_SPARC_DISP16:
2023 case R_SPARC_DISP32:
2024 case R_SPARC_WDISP30:
2025 case R_SPARC_WDISP22:
2038 case R_SPARC_WDISP19:
2039 case R_SPARC_WDISP16:
2043 case R_SPARC_DISP64:
2052 && ((!info->symbolic && h->dynindx != -1)
2053 || !(h->elf_link_hash_flags
2054 & ELF_LINK_HASH_DEF_REGULAR))
2055 && ((input_section->flags & SEC_ALLOC) != 0
2056 /* DWARF will emit R_SPARC_{32,64} relocations in
2057 its sections against symbols defined externally
2058 in shared libraries. We can't do anything
2060 || ((input_section->flags & SEC_DEBUGGING) != 0
2061 && (h->elf_link_hash_flags
2062 & ELF_LINK_HASH_DEF_DYNAMIC) != 0)))
2069 /* In these cases, we don't need the relocation
2070 value. We check specially because in some
2071 obscure cases sec->output_section will be NULL. */
2076 relocation = (h->root.u.def.value
2077 + sec->output_section->vma
2078 + sec->output_offset);
2081 else if (h->root.type == bfd_link_hash_undefweak)
2083 else if (info->shared
2084 && (!info->symbolic || info->allow_shlib_undefined)
2085 && !info->no_undefined
2086 && ELF_ST_VISIBILITY (h->other) == STV_DEFAULT)
2090 if (! ((*info->callbacks->undefined_symbol)
2091 (info, h->root.root.string, input_bfd,
2092 input_section, rel->r_offset,
2093 (!info->shared || info->no_undefined
2094 || ELF_ST_VISIBILITY (h->other)))))
2097 /* To avoid generating warning messages about truncated
2098 relocations, set the relocation's address to be the same as
2099 the start of this section. */
2101 if (input_section->output_section != NULL)
2102 relocation = input_section->output_section->vma;
2108 /* When generating a shared object, these relocations are copied
2109 into the output file to be resolved at run time. */
2110 if (info->shared && r_symndx != 0 && (input_section->flags & SEC_ALLOC))
2116 case R_SPARC_PC_HH22:
2117 case R_SPARC_PC_HM10:
2118 case R_SPARC_PC_LM22:
2120 && !strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_"))
2124 case R_SPARC_DISP16:
2125 case R_SPARC_DISP32:
2126 case R_SPARC_WDISP30:
2127 case R_SPARC_WDISP22:
2128 case R_SPARC_WDISP19:
2129 case R_SPARC_WDISP16:
2130 case R_SPARC_DISP64:
2160 Elf_Internal_Rela outrel;
2166 (bfd_elf_string_from_elf_section
2168 elf_elfheader (input_bfd)->e_shstrndx,
2169 elf_section_data (input_section)->rel_hdr.sh_name));
2174 BFD_ASSERT (strncmp (name, ".rela", 5) == 0
2175 && strcmp (bfd_get_section_name(input_bfd,
2179 sreloc = bfd_get_section_by_name (dynobj, name);
2180 BFD_ASSERT (sreloc != NULL);
2186 _bfd_elf_section_offset (output_bfd, info, input_section,
2188 if (outrel.r_offset == (bfd_vma) -1)
2191 outrel.r_offset += (input_section->output_section->vma
2192 + input_section->output_offset);
2194 /* Optimize unaligned reloc usage now that we know where
2195 it finally resides. */
2199 if (outrel.r_offset & 1) r_type = R_SPARC_UA16;
2202 if (!(outrel.r_offset & 1)) r_type = R_SPARC_16;
2205 if (outrel.r_offset & 3) r_type = R_SPARC_UA32;
2208 if (!(outrel.r_offset & 3)) r_type = R_SPARC_32;
2211 if (outrel.r_offset & 7) r_type = R_SPARC_UA64;
2214 if (!(outrel.r_offset & 7)) r_type = R_SPARC_64;
2219 memset (&outrel, 0, sizeof outrel);
2220 /* h->dynindx may be -1 if the symbol was marked to
2223 && ((! info->symbolic && h->dynindx != -1)
2224 || (h->elf_link_hash_flags
2225 & ELF_LINK_HASH_DEF_REGULAR) == 0))
2227 BFD_ASSERT (h->dynindx != -1);
2229 = ELF64_R_INFO (h->dynindx,
2231 ELF64_R_TYPE_DATA (rel->r_info),
2233 outrel.r_addend = rel->r_addend;
2237 if (r_type == R_SPARC_64)
2239 outrel.r_info = ELF64_R_INFO (0, R_SPARC_RELATIVE);
2240 outrel.r_addend = relocation + rel->r_addend;
2247 sec = local_sections[r_symndx];
2250 BFD_ASSERT (h->root.type == bfd_link_hash_defined
2252 == bfd_link_hash_defweak));
2253 sec = h->root.u.def.section;
2255 if (sec != NULL && bfd_is_abs_section (sec))
2257 else if (sec == NULL || sec->owner == NULL)
2259 bfd_set_error (bfd_error_bad_value);
2266 osec = sec->output_section;
2267 indx = elf_section_data (osec)->dynindx;
2269 /* FIXME: we really should be able to link non-pic
2270 shared libraries. */
2274 (*_bfd_error_handler)
2275 (_("%s: probably compiled without -fPIC?"),
2276 bfd_archive_filename (input_bfd));
2277 bfd_set_error (bfd_error_bad_value);
2283 = ELF64_R_INFO (indx,
2285 ELF64_R_TYPE_DATA (rel->r_info),
2287 outrel.r_addend = relocation + rel->r_addend;
2291 bfd_elf64_swap_reloca_out (output_bfd, &outrel,
2292 (((Elf64_External_Rela *)
2294 + sreloc->reloc_count));
2295 ++sreloc->reloc_count;
2297 /* This reloc will be computed at runtime, so there's no
2298 need to do anything now. */
2310 /* Relocation is to the entry for this symbol in the global
2314 sgot = bfd_get_section_by_name (dynobj, ".got");
2315 BFD_ASSERT (sgot != NULL);
2320 bfd_vma off = h->got.offset;
2321 BFD_ASSERT (off != (bfd_vma) -1);
2323 if (! elf_hash_table (info)->dynamic_sections_created
2325 && (info->symbolic || h->dynindx == -1)
2326 && (h->elf_link_hash_flags
2327 & ELF_LINK_HASH_DEF_REGULAR)))
2329 /* This is actually a static link, or it is a -Bsymbolic
2330 link and the symbol is defined locally, or the symbol
2331 was forced to be local because of a version file. We
2332 must initialize this entry in the global offset table.
2333 Since the offset must always be a multiple of 8, we
2334 use the least significant bit to record whether we
2335 have initialized it already.
2337 When doing a dynamic link, we create a .rela.got
2338 relocation entry to initialize the value. This is
2339 done in the finish_dynamic_symbol routine. */
2345 bfd_put_64 (output_bfd, relocation,
2346 sgot->contents + off);
2350 relocation = sgot->output_offset + off - got_base;
2356 BFD_ASSERT (local_got_offsets != NULL);
2357 off = local_got_offsets[r_symndx];
2358 BFD_ASSERT (off != (bfd_vma) -1);
2360 /* The offset must always be a multiple of 8. We use
2361 the least significant bit to record whether we have
2362 already processed this entry. */
2367 local_got_offsets[r_symndx] |= 1;
2372 Elf_Internal_Rela outrel;
2374 /* The Solaris 2.7 64-bit linker adds the contents
2375 of the location to the value of the reloc.
2376 Note this is different behaviour to the
2377 32-bit linker, which both adds the contents
2378 and ignores the addend. So clear the location. */
2379 bfd_put_64 (output_bfd, (bfd_vma) 0,
2380 sgot->contents + off);
2382 /* We need to generate a R_SPARC_RELATIVE reloc
2383 for the dynamic linker. */
2384 srelgot = bfd_get_section_by_name(dynobj, ".rela.got");
2385 BFD_ASSERT (srelgot != NULL);
2387 outrel.r_offset = (sgot->output_section->vma
2388 + sgot->output_offset
2390 outrel.r_info = ELF64_R_INFO (0, R_SPARC_RELATIVE);
2391 outrel.r_addend = relocation;
2392 bfd_elf64_swap_reloca_out (output_bfd, &outrel,
2393 (((Elf64_External_Rela *)
2395 + srelgot->reloc_count));
2396 ++srelgot->reloc_count;
2399 bfd_put_64 (output_bfd, relocation, sgot->contents + off);
2401 relocation = sgot->output_offset + off - got_base;
2405 case R_SPARC_WPLT30:
2407 case R_SPARC_HIPLT22:
2408 case R_SPARC_LOPLT10:
2409 case R_SPARC_PCPLT32:
2410 case R_SPARC_PCPLT22:
2411 case R_SPARC_PCPLT10:
2413 /* Relocation is to the entry for this symbol in the
2414 procedure linkage table. */
2415 BFD_ASSERT (h != NULL);
2417 if (h->plt.offset == (bfd_vma) -1)
2419 /* We didn't make a PLT entry for this symbol. This
2420 happens when statically linking PIC code, or when
2421 using -Bsymbolic. */
2427 splt = bfd_get_section_by_name (dynobj, ".plt");
2428 BFD_ASSERT (splt != NULL);
2431 relocation = (splt->output_section->vma
2432 + splt->output_offset
2433 + sparc64_elf_plt_entry_offset (h->plt.offset));
2434 if (r_type == R_SPARC_WPLT30)
2442 relocation += rel->r_addend;
2443 relocation = (relocation & 0x3ff) + ELF64_R_TYPE_DATA (rel->r_info);
2445 x = bfd_get_32 (input_bfd, contents + rel->r_offset);
2446 x = (x & ~(bfd_vma) 0x1fff) | (relocation & 0x1fff);
2447 bfd_put_32 (input_bfd, x, contents + rel->r_offset);
2449 r = bfd_check_overflow (howto->complain_on_overflow,
2450 howto->bitsize, howto->rightshift,
2451 bfd_arch_bits_per_address (input_bfd),
2456 case R_SPARC_WDISP16:
2460 relocation += rel->r_addend;
2461 /* Adjust for pc-relative-ness. */
2462 relocation -= (input_section->output_section->vma
2463 + input_section->output_offset);
2464 relocation -= rel->r_offset;
2466 x = bfd_get_32 (input_bfd, contents + rel->r_offset);
2467 x &= ~(bfd_vma) 0x303fff;
2468 x |= ((((relocation >> 2) & 0xc000) << 6)
2469 | ((relocation >> 2) & 0x3fff));
2470 bfd_put_32 (input_bfd, x, contents + rel->r_offset);
2472 r = bfd_check_overflow (howto->complain_on_overflow,
2473 howto->bitsize, howto->rightshift,
2474 bfd_arch_bits_per_address (input_bfd),
2483 relocation += rel->r_addend;
2484 relocation = relocation ^ MINUS_ONE;
2486 x = bfd_get_32 (input_bfd, contents + rel->r_offset);
2487 x = (x & ~(bfd_vma) 0x3fffff) | ((relocation >> 10) & 0x3fffff);
2488 bfd_put_32 (input_bfd, x, contents + rel->r_offset);
2490 r = bfd_check_overflow (howto->complain_on_overflow,
2491 howto->bitsize, howto->rightshift,
2492 bfd_arch_bits_per_address (input_bfd),
2501 relocation += rel->r_addend;
2502 relocation = (relocation & 0x3ff) | 0x1c00;
2504 x = bfd_get_32 (input_bfd, contents + rel->r_offset);
2505 x = (x & ~(bfd_vma) 0x1fff) | relocation;
2506 bfd_put_32 (input_bfd, x, contents + rel->r_offset);
2512 case R_SPARC_WDISP30:
2514 if (SEC_DO_RELAX (input_section)
2515 && rel->r_offset + 4 < input_section->_raw_size)
2519 #define XCC (2 << 20)
2520 #define COND(x) (((x)&0xf)<<25)
2521 #define CONDA COND(0x8)
2522 #define INSN_BPA (F2(0,1) | CONDA | BPRED | XCC)
2523 #define INSN_BA (F2(0,2) | CONDA)
2524 #define INSN_OR F3(2, 0x2, 0)
2525 #define INSN_NOP F2(0,4)
2529 /* If the instruction is a call with either:
2531 arithmetic instruction with rd == %o7
2532 where rs1 != %o7 and rs2 if it is register != %o7
2533 then we can optimize if the call destination is near
2534 by changing the call into a branch always. */
2535 x = bfd_get_32 (input_bfd, contents + rel->r_offset);
2536 y = bfd_get_32 (input_bfd, contents + rel->r_offset + 4);
2537 if ((x & OP(~0)) == OP(1) && (y & OP(~0)) == OP(2))
2539 if (((y & OP3(~0)) == OP3(0x3d) /* restore */
2540 || ((y & OP3(0x28)) == 0 /* arithmetic */
2541 && (y & RD(~0)) == RD(O7)))
2542 && (y & RS1(~0)) != RS1(O7)
2544 || (y & RS2(~0)) != RS2(O7)))
2548 reloc = relocation + rel->r_addend - rel->r_offset;
2549 reloc -= (input_section->output_section->vma
2550 + input_section->output_offset);
2554 /* Ensure the branch fits into simm22. */
2555 if ((reloc & ~(bfd_vma)0x7fffff)
2556 && ((reloc | 0x7fffff) != MINUS_ONE))
2560 /* Check whether it fits into simm19. */
2561 if ((reloc & 0x3c0000) == 0
2562 || (reloc & 0x3c0000) == 0x3c0000)
2563 x = INSN_BPA | (reloc & 0x7ffff); /* ba,pt %xcc */
2565 x = INSN_BA | (reloc & 0x3fffff); /* ba */
2566 bfd_put_32 (input_bfd, x, contents + rel->r_offset);
2568 if (rel->r_offset >= 4
2569 && (y & (0xffffffff ^ RS1(~0)))
2570 == (INSN_OR | RD(O7) | RS2(G0)))
2575 z = bfd_get_32 (input_bfd,
2576 contents + rel->r_offset - 4);
2577 if ((z & (0xffffffff ^ RD(~0)))
2578 != (INSN_OR | RS1(O7) | RS2(G0)))
2586 If call foo was replaced with ba, replace
2587 or %rN, %g0, %o7 with nop. */
2589 reg = (y & RS1(~0)) >> 14;
2590 if (reg != ((z & RD(~0)) >> 25)
2591 || reg == G0 || reg == O7)
2594 bfd_put_32 (input_bfd, (bfd_vma) INSN_NOP,
2595 contents + rel->r_offset + 4);
2605 r = _bfd_final_link_relocate (howto, input_bfd, input_section,
2606 contents, rel->r_offset,
2607 relocation, rel->r_addend);
2617 case bfd_reloc_outofrange:
2620 case bfd_reloc_overflow:
2624 /* The Solaris native linker silently disregards
2625 overflows. We don't, but this breaks stabs debugging
2626 info, whose relocations are only 32-bits wide. Ignore
2627 overflows in this case. */
2628 if (r_type == R_SPARC_32
2629 && (input_section->flags & SEC_DEBUGGING) != 0
2630 && strcmp (bfd_section_name (input_bfd, input_section),
2636 if (h->root.type == bfd_link_hash_undefweak
2637 && howto->pc_relative)
2639 /* Assume this is a call protected by other code that
2640 detect the symbol is undefined. If this is the case,
2641 we can safely ignore the overflow. If not, the
2642 program is hosed anyway, and a little warning isn't
2647 name = h->root.root.string;
2651 name = (bfd_elf_string_from_elf_section
2653 symtab_hdr->sh_link,
2658 name = bfd_section_name (input_bfd, sec);
2660 if (! ((*info->callbacks->reloc_overflow)
2661 (info, name, howto->name, (bfd_vma) 0,
2662 input_bfd, input_section, rel->r_offset)))
2672 /* Finish up dynamic symbol handling. We set the contents of various
2673 dynamic sections here. */
2676 sparc64_elf_finish_dynamic_symbol (output_bfd, info, h, sym)
2678 struct bfd_link_info *info;
2679 struct elf_link_hash_entry *h;
2680 Elf_Internal_Sym *sym;
2684 dynobj = elf_hash_table (info)->dynobj;
2686 if (h->plt.offset != (bfd_vma) -1)
2690 Elf_Internal_Rela rela;
2692 /* This symbol has an entry in the PLT. Set it up. */
2694 BFD_ASSERT (h->dynindx != -1);
2696 splt = bfd_get_section_by_name (dynobj, ".plt");
2697 srela = bfd_get_section_by_name (dynobj, ".rela.plt");
2698 BFD_ASSERT (splt != NULL && srela != NULL);
2700 /* Fill in the entry in the .rela.plt section. */
2702 if (h->plt.offset < LARGE_PLT_THRESHOLD)
2704 rela.r_offset = sparc64_elf_plt_entry_offset (h->plt.offset);
2709 bfd_vma max = splt->_raw_size / PLT_ENTRY_SIZE;
2710 rela.r_offset = sparc64_elf_plt_ptr_offset (h->plt.offset, max);
2711 rela.r_addend = -(sparc64_elf_plt_entry_offset (h->plt.offset) + 4)
2712 -(splt->output_section->vma + splt->output_offset);
2714 rela.r_offset += (splt->output_section->vma + splt->output_offset);
2715 rela.r_info = ELF64_R_INFO (h->dynindx, R_SPARC_JMP_SLOT);
2717 /* Adjust for the first 4 reserved elements in the .plt section
2718 when setting the offset in the .rela.plt section.
2719 Sun forgot to read their own ABI and copied elf32-sparc behaviour,
2720 thus .plt[4] has corresponding .rela.plt[0] and so on. */
2722 bfd_elf64_swap_reloca_out (output_bfd, &rela,
2723 ((Elf64_External_Rela *) srela->contents
2724 + (h->plt.offset - 4)));
2726 if ((h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0)
2728 /* Mark the symbol as undefined, rather than as defined in
2729 the .plt section. Leave the value alone. */
2730 sym->st_shndx = SHN_UNDEF;
2731 /* If the symbol is weak, we do need to clear the value.
2732 Otherwise, the PLT entry would provide a definition for
2733 the symbol even if the symbol wasn't defined anywhere,
2734 and so the symbol would never be NULL. */
2735 if ((h->elf_link_hash_flags & ELF_LINK_HASH_REF_REGULAR_NONWEAK)
2741 if (h->got.offset != (bfd_vma) -1)
2745 Elf_Internal_Rela rela;
2747 /* This symbol has an entry in the GOT. Set it up. */
2749 sgot = bfd_get_section_by_name (dynobj, ".got");
2750 srela = bfd_get_section_by_name (dynobj, ".rela.got");
2751 BFD_ASSERT (sgot != NULL && srela != NULL);
2753 rela.r_offset = (sgot->output_section->vma
2754 + sgot->output_offset
2755 + (h->got.offset &~ (bfd_vma) 1));
2757 /* If this is a -Bsymbolic link, and the symbol is defined
2758 locally, we just want to emit a RELATIVE reloc. Likewise if
2759 the symbol was forced to be local because of a version file.
2760 The entry in the global offset table will already have been
2761 initialized in the relocate_section function. */
2763 && (info->symbolic || h->dynindx == -1)
2764 && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR))
2766 asection *sec = h->root.u.def.section;
2767 rela.r_info = ELF64_R_INFO (0, R_SPARC_RELATIVE);
2768 rela.r_addend = (h->root.u.def.value
2769 + sec->output_section->vma
2770 + sec->output_offset);
2774 bfd_put_64 (output_bfd, (bfd_vma) 0, sgot->contents + h->got.offset);
2775 rela.r_info = ELF64_R_INFO (h->dynindx, R_SPARC_GLOB_DAT);
2779 bfd_elf64_swap_reloca_out (output_bfd, &rela,
2780 ((Elf64_External_Rela *) srela->contents
2781 + srela->reloc_count));
2782 ++srela->reloc_count;
2785 if ((h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_COPY) != 0)
2788 Elf_Internal_Rela rela;
2790 /* This symbols needs a copy reloc. Set it up. */
2792 BFD_ASSERT (h->dynindx != -1);
2794 s = bfd_get_section_by_name (h->root.u.def.section->owner,
2796 BFD_ASSERT (s != NULL);
2798 rela.r_offset = (h->root.u.def.value
2799 + h->root.u.def.section->output_section->vma
2800 + h->root.u.def.section->output_offset);
2801 rela.r_info = ELF64_R_INFO (h->dynindx, R_SPARC_COPY);
2803 bfd_elf64_swap_reloca_out (output_bfd, &rela,
2804 ((Elf64_External_Rela *) s->contents
2809 /* Mark some specially defined symbols as absolute. */
2810 if (strcmp (h->root.root.string, "_DYNAMIC") == 0
2811 || strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0
2812 || strcmp (h->root.root.string, "_PROCEDURE_LINKAGE_TABLE_") == 0)
2813 sym->st_shndx = SHN_ABS;
2818 /* Finish up the dynamic sections. */
2821 sparc64_elf_finish_dynamic_sections (output_bfd, info)
2823 struct bfd_link_info *info;
2826 int stt_regidx = -1;
2830 dynobj = elf_hash_table (info)->dynobj;
2832 sdyn = bfd_get_section_by_name (dynobj, ".dynamic");
2834 if (elf_hash_table (info)->dynamic_sections_created)
2837 Elf64_External_Dyn *dyncon, *dynconend;
2839 splt = bfd_get_section_by_name (dynobj, ".plt");
2840 BFD_ASSERT (splt != NULL && sdyn != NULL);
2842 dyncon = (Elf64_External_Dyn *) sdyn->contents;
2843 dynconend = (Elf64_External_Dyn *) (sdyn->contents + sdyn->_raw_size);
2844 for (; dyncon < dynconend; dyncon++)
2846 Elf_Internal_Dyn dyn;
2850 bfd_elf64_swap_dyn_in (dynobj, dyncon, &dyn);
2854 case DT_PLTGOT: name = ".plt"; size = false; break;
2855 case DT_PLTRELSZ: name = ".rela.plt"; size = true; break;
2856 case DT_JMPREL: name = ".rela.plt"; size = false; break;
2857 case DT_SPARC_REGISTER:
2858 if (stt_regidx == -1)
2861 _bfd_elf_link_lookup_local_dynindx (info, output_bfd, -1);
2862 if (stt_regidx == -1)
2865 dyn.d_un.d_val = stt_regidx++;
2866 bfd_elf64_swap_dyn_out (output_bfd, &dyn, dyncon);
2868 default: name = NULL; size = false; break;
2875 s = bfd_get_section_by_name (output_bfd, name);
2881 dyn.d_un.d_ptr = s->vma;
2884 if (s->_cooked_size != 0)
2885 dyn.d_un.d_val = s->_cooked_size;
2887 dyn.d_un.d_val = s->_raw_size;
2890 bfd_elf64_swap_dyn_out (output_bfd, &dyn, dyncon);
2894 /* Initialize the contents of the .plt section. */
2895 if (splt->_raw_size > 0)
2897 sparc64_elf_build_plt (output_bfd, splt->contents,
2898 (int) (splt->_raw_size / PLT_ENTRY_SIZE));
2901 elf_section_data (splt->output_section)->this_hdr.sh_entsize =
2905 /* Set the first entry in the global offset table to the address of
2906 the dynamic section. */
2907 sgot = bfd_get_section_by_name (dynobj, ".got");
2908 BFD_ASSERT (sgot != NULL);
2909 if (sgot->_raw_size > 0)
2912 bfd_put_64 (output_bfd, (bfd_vma) 0, sgot->contents);
2914 bfd_put_64 (output_bfd,
2915 sdyn->output_section->vma + sdyn->output_offset,
2919 elf_section_data (sgot->output_section)->this_hdr.sh_entsize = 8;
2924 static enum elf_reloc_type_class
2925 sparc64_elf_reloc_type_class (rela)
2926 const Elf_Internal_Rela *rela;
2928 switch ((int) ELF64_R_TYPE (rela->r_info))
2930 case R_SPARC_RELATIVE:
2931 return reloc_class_relative;
2932 case R_SPARC_JMP_SLOT:
2933 return reloc_class_plt;
2935 return reloc_class_copy;
2937 return reloc_class_normal;
2941 /* Functions for dealing with the e_flags field. */
2943 /* Merge backend specific data from an object file to the output
2944 object file when linking. */
2947 sparc64_elf_merge_private_bfd_data (ibfd, obfd)
2952 flagword new_flags, old_flags;
2955 if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour
2956 || bfd_get_flavour (obfd) != bfd_target_elf_flavour)
2959 new_flags = elf_elfheader (ibfd)->e_flags;
2960 old_flags = elf_elfheader (obfd)->e_flags;
2962 if (!elf_flags_init (obfd)) /* First call, no flags set */
2964 elf_flags_init (obfd) = true;
2965 elf_elfheader (obfd)->e_flags = new_flags;
2968 else if (new_flags == old_flags) /* Compatible flags are ok */
2971 else /* Incompatible flags */
2975 #define EF_SPARC_ISA_EXTENSIONS \
2976 (EF_SPARC_SUN_US1 | EF_SPARC_SUN_US3 | EF_SPARC_HAL_R1)
2978 if ((ibfd->flags & DYNAMIC) != 0)
2980 /* We don't want dynamic objects memory ordering and
2981 architecture to have any role. That's what dynamic linker
2983 new_flags &= ~(EF_SPARCV9_MM | EF_SPARC_ISA_EXTENSIONS);
2984 new_flags |= (old_flags
2985 & (EF_SPARCV9_MM | EF_SPARC_ISA_EXTENSIONS));
2989 /* Choose the highest architecture requirements. */
2990 old_flags |= (new_flags & EF_SPARC_ISA_EXTENSIONS);
2991 new_flags |= (old_flags & EF_SPARC_ISA_EXTENSIONS);
2992 if ((old_flags & (EF_SPARC_SUN_US1 | EF_SPARC_SUN_US3))
2993 && (old_flags & EF_SPARC_HAL_R1))
2996 (*_bfd_error_handler)
2997 (_("%s: linking UltraSPARC specific with HAL specific code"),
2998 bfd_archive_filename (ibfd));
3000 /* Choose the most restrictive memory ordering. */
3001 old_mm = (old_flags & EF_SPARCV9_MM);
3002 new_mm = (new_flags & EF_SPARCV9_MM);
3003 old_flags &= ~EF_SPARCV9_MM;
3004 new_flags &= ~EF_SPARCV9_MM;
3005 if (new_mm < old_mm)
3007 old_flags |= old_mm;
3008 new_flags |= old_mm;
3011 /* Warn about any other mismatches */
3012 if (new_flags != old_flags)
3015 (*_bfd_error_handler)
3016 (_("%s: uses different e_flags (0x%lx) fields than previous modules (0x%lx)"),
3017 bfd_archive_filename (ibfd), (long) new_flags, (long) old_flags);
3020 elf_elfheader (obfd)->e_flags = old_flags;
3024 bfd_set_error (bfd_error_bad_value);
3031 /* Print a STT_REGISTER symbol to file FILE. */
3034 sparc64_elf_print_symbol_all (abfd, filep, symbol)
3035 bfd *abfd ATTRIBUTE_UNUSED;
3039 FILE *file = (FILE *) filep;
3042 if (ELF_ST_TYPE (((elf_symbol_type *) symbol)->internal_elf_sym.st_info)
3046 reg = ((elf_symbol_type *) symbol)->internal_elf_sym.st_value;
3047 type = symbol->flags;
3048 fprintf (file, "REG_%c%c%11s%c%c R", "GOLI" [reg / 8], '0' + (reg & 7), "",
3050 ? (type & BSF_GLOBAL) ? '!' : 'l'
3051 : (type & BSF_GLOBAL) ? 'g' : ' '),
3052 (type & BSF_WEAK) ? 'w' : ' ');
3053 if (symbol->name == NULL || symbol->name [0] == '\0')
3056 return symbol->name;
3059 /* Set the right machine number for a SPARC64 ELF file. */
3062 sparc64_elf_object_p (abfd)
3065 unsigned long mach = bfd_mach_sparc_v9;
3067 if (elf_elfheader (abfd)->e_flags & EF_SPARC_SUN_US3)
3068 mach = bfd_mach_sparc_v9b;
3069 else if (elf_elfheader (abfd)->e_flags & EF_SPARC_SUN_US1)
3070 mach = bfd_mach_sparc_v9a;
3071 return bfd_default_set_arch_mach (abfd, bfd_arch_sparc, mach);
3074 /* Relocations in the 64 bit SPARC ELF ABI are more complex than in
3075 standard ELF, because R_SPARC_OLO10 has secondary addend in
3076 ELF64_R_TYPE_DATA field. This structure is used to redirect the
3077 relocation handling routines. */
3079 const struct elf_size_info sparc64_elf_size_info =
3081 sizeof (Elf64_External_Ehdr),
3082 sizeof (Elf64_External_Phdr),
3083 sizeof (Elf64_External_Shdr),
3084 sizeof (Elf64_External_Rel),
3085 sizeof (Elf64_External_Rela),
3086 sizeof (Elf64_External_Sym),
3087 sizeof (Elf64_External_Dyn),
3088 sizeof (Elf_External_Note),
3089 4, /* hash-table entry size */
3090 /* internal relocations per external relocations.
3091 For link purposes we use just 1 internal per
3092 1 external, for assembly and slurp symbol table
3099 bfd_elf64_write_out_phdrs,
3100 bfd_elf64_write_shdrs_and_ehdr,
3101 sparc64_elf_write_relocs,
3102 bfd_elf64_swap_symbol_out,
3103 sparc64_elf_slurp_reloc_table,
3104 bfd_elf64_slurp_symbol_table,
3105 bfd_elf64_swap_dyn_in,
3106 bfd_elf64_swap_dyn_out,
3113 #define TARGET_BIG_SYM bfd_elf64_sparc_vec
3114 #define TARGET_BIG_NAME "elf64-sparc"
3115 #define ELF_ARCH bfd_arch_sparc
3116 #define ELF_MAXPAGESIZE 0x100000
3118 /* This is the official ABI value. */
3119 #define ELF_MACHINE_CODE EM_SPARCV9
3121 /* This is the value that we used before the ABI was released. */
3122 #define ELF_MACHINE_ALT1 EM_OLD_SPARCV9
3124 #define bfd_elf64_bfd_link_hash_table_create \
3125 sparc64_elf_bfd_link_hash_table_create
3127 #define elf_info_to_howto \
3128 sparc64_elf_info_to_howto
3129 #define bfd_elf64_get_reloc_upper_bound \
3130 sparc64_elf_get_reloc_upper_bound
3131 #define bfd_elf64_get_dynamic_reloc_upper_bound \
3132 sparc64_elf_get_dynamic_reloc_upper_bound
3133 #define bfd_elf64_canonicalize_dynamic_reloc \
3134 sparc64_elf_canonicalize_dynamic_reloc
3135 #define bfd_elf64_bfd_reloc_type_lookup \
3136 sparc64_elf_reloc_type_lookup
3137 #define bfd_elf64_bfd_relax_section \
3138 sparc64_elf_relax_section
3140 #define elf_backend_create_dynamic_sections \
3141 _bfd_elf_create_dynamic_sections
3142 #define elf_backend_add_symbol_hook \
3143 sparc64_elf_add_symbol_hook
3144 #define elf_backend_get_symbol_type \
3145 sparc64_elf_get_symbol_type
3146 #define elf_backend_symbol_processing \
3147 sparc64_elf_symbol_processing
3148 #define elf_backend_check_relocs \
3149 sparc64_elf_check_relocs
3150 #define elf_backend_adjust_dynamic_symbol \
3151 sparc64_elf_adjust_dynamic_symbol
3152 #define elf_backend_size_dynamic_sections \
3153 sparc64_elf_size_dynamic_sections
3154 #define elf_backend_relocate_section \
3155 sparc64_elf_relocate_section
3156 #define elf_backend_finish_dynamic_symbol \
3157 sparc64_elf_finish_dynamic_symbol
3158 #define elf_backend_finish_dynamic_sections \
3159 sparc64_elf_finish_dynamic_sections
3160 #define elf_backend_print_symbol_all \
3161 sparc64_elf_print_symbol_all
3162 #define elf_backend_output_arch_syms \
3163 sparc64_elf_output_arch_syms
3164 #define bfd_elf64_bfd_merge_private_bfd_data \
3165 sparc64_elf_merge_private_bfd_data
3167 #define elf_backend_size_info \
3168 sparc64_elf_size_info
3169 #define elf_backend_object_p \
3170 sparc64_elf_object_p
3171 #define elf_backend_reloc_type_class \
3172 sparc64_elf_reloc_type_class
3174 #define elf_backend_want_got_plt 0
3175 #define elf_backend_plt_readonly 0
3176 #define elf_backend_want_plt_sym 1
3178 /* Section 5.2.4 of the ABI specifies a 256-byte boundary for the table. */
3179 #define elf_backend_plt_alignment 8
3181 #define elf_backend_got_header_size 8
3182 #define elf_backend_plt_header_size PLT_HEADER_SIZE
3184 #include "elf64-target.h"