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_copy_private_bfd_data
73 PARAMS ((bfd *, bfd *));
74 static boolean sparc64_elf_merge_private_bfd_data
75 PARAMS ((bfd *, bfd *));
77 static const char *sparc64_elf_print_symbol_all
78 PARAMS ((bfd *, PTR, asymbol *));
79 static boolean sparc64_elf_relax_section
80 PARAMS ((bfd *, asection *, struct bfd_link_info *, boolean *));
81 static boolean sparc64_elf_relocate_section
82 PARAMS ((bfd *, struct bfd_link_info *, bfd *, asection *, bfd_byte *,
83 Elf_Internal_Rela *, Elf_Internal_Sym *, asection **));
84 static boolean sparc64_elf_finish_dynamic_symbol
85 PARAMS ((bfd *, struct bfd_link_info *, struct elf_link_hash_entry *,
87 static boolean sparc64_elf_finish_dynamic_sections
88 PARAMS ((bfd *, struct bfd_link_info *));
89 static boolean sparc64_elf_object_p PARAMS ((bfd *));
90 static long sparc64_elf_get_reloc_upper_bound PARAMS ((bfd *, asection *));
91 static long sparc64_elf_get_dynamic_reloc_upper_bound PARAMS ((bfd *));
92 static boolean sparc64_elf_slurp_one_reloc_table
93 PARAMS ((bfd *, asection *, Elf_Internal_Shdr *, asymbol **, boolean));
94 static boolean sparc64_elf_slurp_reloc_table
95 PARAMS ((bfd *, asection *, asymbol **, boolean));
96 static long sparc64_elf_canonicalize_dynamic_reloc
97 PARAMS ((bfd *, arelent **, asymbol **));
98 static void sparc64_elf_write_relocs PARAMS ((bfd *, asection *, PTR));
99 static enum elf_reloc_type_class sparc64_elf_reloc_type_class PARAMS ((int));
101 /* The relocation "howto" table. */
103 static bfd_reloc_status_type sparc_elf_notsup_reloc
104 PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **));
105 static bfd_reloc_status_type sparc_elf_wdisp16_reloc
106 PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **));
107 static bfd_reloc_status_type sparc_elf_hix22_reloc
108 PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **));
109 static bfd_reloc_status_type sparc_elf_lox10_reloc
110 PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **));
112 static reloc_howto_type sparc64_elf_howto_table[] =
114 HOWTO(R_SPARC_NONE, 0,0, 0,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_NONE", false,0,0x00000000,true),
115 HOWTO(R_SPARC_8, 0,0, 8,false,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_8", false,0,0x000000ff,true),
116 HOWTO(R_SPARC_16, 0,1,16,false,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_16", false,0,0x0000ffff,true),
117 HOWTO(R_SPARC_32, 0,2,32,false,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_32", false,0,0xffffffff,true),
118 HOWTO(R_SPARC_DISP8, 0,0, 8,true, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_DISP8", false,0,0x000000ff,true),
119 HOWTO(R_SPARC_DISP16, 0,1,16,true, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_DISP16", false,0,0x0000ffff,true),
120 HOWTO(R_SPARC_DISP32, 0,2,32,true, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_DISP32", false,0,0x00ffffff,true),
121 HOWTO(R_SPARC_WDISP30, 2,2,30,true, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_WDISP30", false,0,0x3fffffff,true),
122 HOWTO(R_SPARC_WDISP22, 2,2,22,true, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_WDISP22", false,0,0x003fffff,true),
123 HOWTO(R_SPARC_HI22, 10,2,22,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_HI22", false,0,0x003fffff,true),
124 HOWTO(R_SPARC_22, 0,2,22,false,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_22", false,0,0x003fffff,true),
125 HOWTO(R_SPARC_13, 0,2,13,false,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_13", false,0,0x00001fff,true),
126 HOWTO(R_SPARC_LO10, 0,2,10,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_LO10", false,0,0x000003ff,true),
127 HOWTO(R_SPARC_GOT10, 0,2,10,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_GOT10", false,0,0x000003ff,true),
128 HOWTO(R_SPARC_GOT13, 0,2,13,false,0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_GOT13", false,0,0x00001fff,true),
129 HOWTO(R_SPARC_GOT22, 10,2,22,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_GOT22", false,0,0x003fffff,true),
130 HOWTO(R_SPARC_PC10, 0,2,10,true, 0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_PC10", false,0,0x000003ff,true),
131 HOWTO(R_SPARC_PC22, 10,2,22,true, 0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_PC22", false,0,0x003fffff,true),
132 HOWTO(R_SPARC_WPLT30, 2,2,30,true, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_WPLT30", false,0,0x3fffffff,true),
133 HOWTO(R_SPARC_COPY, 0,0,00,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_COPY", false,0,0x00000000,true),
134 HOWTO(R_SPARC_GLOB_DAT, 0,0,00,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_GLOB_DAT",false,0,0x00000000,true),
135 HOWTO(R_SPARC_JMP_SLOT, 0,0,00,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_JMP_SLOT",false,0,0x00000000,true),
136 HOWTO(R_SPARC_RELATIVE, 0,0,00,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_RELATIVE",false,0,0x00000000,true),
137 HOWTO(R_SPARC_UA32, 0,2,32,false,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_UA32", false,0,0xffffffff,true),
138 #ifndef SPARC64_OLD_RELOCS
139 /* These aren't implemented yet. */
140 HOWTO(R_SPARC_PLT32, 0,0,00,false,0,complain_overflow_dont, sparc_elf_notsup_reloc, "R_SPARC_PLT32", false,0,0x00000000,true),
141 HOWTO(R_SPARC_HIPLT22, 0,0,00,false,0,complain_overflow_dont, sparc_elf_notsup_reloc, "R_SPARC_HIPLT22", false,0,0x00000000,true),
142 HOWTO(R_SPARC_LOPLT10, 0,0,00,false,0,complain_overflow_dont, sparc_elf_notsup_reloc, "R_SPARC_LOPLT10", false,0,0x00000000,true),
143 HOWTO(R_SPARC_PCPLT32, 0,0,00,false,0,complain_overflow_dont, sparc_elf_notsup_reloc, "R_SPARC_PCPLT32", false,0,0x00000000,true),
144 HOWTO(R_SPARC_PCPLT22, 0,0,00,false,0,complain_overflow_dont, sparc_elf_notsup_reloc, "R_SPARC_PCPLT22", false,0,0x00000000,true),
145 HOWTO(R_SPARC_PCPLT10, 0,0,00,false,0,complain_overflow_dont, sparc_elf_notsup_reloc, "R_SPARC_PCPLT10", false,0,0x00000000,true),
147 HOWTO(R_SPARC_10, 0,2,10,false,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_10", false,0,0x000003ff,true),
148 HOWTO(R_SPARC_11, 0,2,11,false,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_11", false,0,0x000007ff,true),
149 HOWTO(R_SPARC_64, 0,4,64,false,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_64", false,0,MINUS_ONE, true),
150 HOWTO(R_SPARC_OLO10, 0,2,13,false,0,complain_overflow_signed, sparc_elf_notsup_reloc, "R_SPARC_OLO10", false,0,0x00001fff,true),
151 HOWTO(R_SPARC_HH22, 42,2,22,false,0,complain_overflow_unsigned,bfd_elf_generic_reloc, "R_SPARC_HH22", false,0,0x003fffff,true),
152 HOWTO(R_SPARC_HM10, 32,2,10,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_HM10", false,0,0x000003ff,true),
153 HOWTO(R_SPARC_LM22, 10,2,22,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_LM22", false,0,0x003fffff,true),
154 HOWTO(R_SPARC_PC_HH22, 42,2,22,true, 0,complain_overflow_unsigned,bfd_elf_generic_reloc, "R_SPARC_PC_HH22", false,0,0x003fffff,true),
155 HOWTO(R_SPARC_PC_HM10, 32,2,10,true, 0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_PC_HM10", false,0,0x000003ff,true),
156 HOWTO(R_SPARC_PC_LM22, 10,2,22,true, 0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_PC_LM22", false,0,0x003fffff,true),
157 HOWTO(R_SPARC_WDISP16, 2,2,16,true, 0,complain_overflow_signed, sparc_elf_wdisp16_reloc,"R_SPARC_WDISP16", false,0,0x00000000,true),
158 HOWTO(R_SPARC_WDISP19, 2,2,19,true, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_WDISP19", false,0,0x0007ffff,true),
159 HOWTO(R_SPARC_UNUSED_42, 0,0, 0,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_UNUSED_42",false,0,0x00000000,true),
160 HOWTO(R_SPARC_7, 0,2, 7,false,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_7", false,0,0x0000007f,true),
161 HOWTO(R_SPARC_5, 0,2, 5,false,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_5", false,0,0x0000001f,true),
162 HOWTO(R_SPARC_6, 0,2, 6,false,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_6", false,0,0x0000003f,true),
163 HOWTO(R_SPARC_DISP64, 0,4,64,true, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_DISP64", false,0,MINUS_ONE, true),
164 HOWTO(R_SPARC_PLT64, 0,4,64,false,0,complain_overflow_bitfield,sparc_elf_notsup_reloc, "R_SPARC_PLT64", false,0,MINUS_ONE, false),
165 HOWTO(R_SPARC_HIX22, 0,4, 0,false,0,complain_overflow_bitfield,sparc_elf_hix22_reloc, "R_SPARC_HIX22", false,0,MINUS_ONE, false),
166 HOWTO(R_SPARC_LOX10, 0,4, 0,false,0,complain_overflow_dont, sparc_elf_lox10_reloc, "R_SPARC_LOX10", false,0,MINUS_ONE, false),
167 HOWTO(R_SPARC_H44, 22,2,22,false,0,complain_overflow_unsigned,bfd_elf_generic_reloc, "R_SPARC_H44", false,0,0x003fffff,false),
168 HOWTO(R_SPARC_M44, 12,2,10,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_M44", false,0,0x000003ff,false),
169 HOWTO(R_SPARC_L44, 0,2,13,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_L44", false,0,0x00000fff,false),
170 HOWTO(R_SPARC_REGISTER, 0,4, 0,false,0,complain_overflow_bitfield,sparc_elf_notsup_reloc, "R_SPARC_REGISTER",false,0,MINUS_ONE, false),
171 HOWTO(R_SPARC_UA64, 0,4,64,false,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_UA64", false,0,MINUS_ONE, true),
172 HOWTO(R_SPARC_UA16, 0,1,16,false,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_UA16", false,0,0x0000ffff,true)
175 struct elf_reloc_map {
176 bfd_reloc_code_real_type bfd_reloc_val;
177 unsigned char elf_reloc_val;
180 static const struct elf_reloc_map sparc_reloc_map[] =
182 { BFD_RELOC_NONE, R_SPARC_NONE, },
183 { BFD_RELOC_16, R_SPARC_16, },
184 { BFD_RELOC_8, R_SPARC_8 },
185 { BFD_RELOC_8_PCREL, R_SPARC_DISP8 },
186 { BFD_RELOC_CTOR, R_SPARC_64 },
187 { BFD_RELOC_32, R_SPARC_32 },
188 { BFD_RELOC_32_PCREL, R_SPARC_DISP32 },
189 { BFD_RELOC_HI22, R_SPARC_HI22 },
190 { BFD_RELOC_LO10, R_SPARC_LO10, },
191 { BFD_RELOC_32_PCREL_S2, R_SPARC_WDISP30 },
192 { BFD_RELOC_SPARC22, R_SPARC_22 },
193 { BFD_RELOC_SPARC13, R_SPARC_13 },
194 { BFD_RELOC_SPARC_GOT10, R_SPARC_GOT10 },
195 { BFD_RELOC_SPARC_GOT13, R_SPARC_GOT13 },
196 { BFD_RELOC_SPARC_GOT22, R_SPARC_GOT22 },
197 { BFD_RELOC_SPARC_PC10, R_SPARC_PC10 },
198 { BFD_RELOC_SPARC_PC22, R_SPARC_PC22 },
199 { BFD_RELOC_SPARC_WPLT30, R_SPARC_WPLT30 },
200 { BFD_RELOC_SPARC_COPY, R_SPARC_COPY },
201 { BFD_RELOC_SPARC_GLOB_DAT, R_SPARC_GLOB_DAT },
202 { BFD_RELOC_SPARC_JMP_SLOT, R_SPARC_JMP_SLOT },
203 { BFD_RELOC_SPARC_RELATIVE, R_SPARC_RELATIVE },
204 { BFD_RELOC_SPARC_WDISP22, R_SPARC_WDISP22 },
205 { BFD_RELOC_SPARC_UA16, R_SPARC_UA16 },
206 { BFD_RELOC_SPARC_UA32, R_SPARC_UA32 },
207 { BFD_RELOC_SPARC_UA64, R_SPARC_UA64 },
208 { BFD_RELOC_SPARC_10, R_SPARC_10 },
209 { BFD_RELOC_SPARC_11, R_SPARC_11 },
210 { BFD_RELOC_SPARC_64, R_SPARC_64 },
211 { BFD_RELOC_SPARC_OLO10, R_SPARC_OLO10 },
212 { BFD_RELOC_SPARC_HH22, R_SPARC_HH22 },
213 { BFD_RELOC_SPARC_HM10, R_SPARC_HM10 },
214 { BFD_RELOC_SPARC_LM22, R_SPARC_LM22 },
215 { BFD_RELOC_SPARC_PC_HH22, R_SPARC_PC_HH22 },
216 { BFD_RELOC_SPARC_PC_HM10, R_SPARC_PC_HM10 },
217 { BFD_RELOC_SPARC_PC_LM22, R_SPARC_PC_LM22 },
218 { BFD_RELOC_SPARC_WDISP16, R_SPARC_WDISP16 },
219 { BFD_RELOC_SPARC_WDISP19, R_SPARC_WDISP19 },
220 { BFD_RELOC_SPARC_7, R_SPARC_7 },
221 { BFD_RELOC_SPARC_5, R_SPARC_5 },
222 { BFD_RELOC_SPARC_6, R_SPARC_6 },
223 { BFD_RELOC_SPARC_DISP64, R_SPARC_DISP64 },
224 { BFD_RELOC_SPARC_PLT64, R_SPARC_PLT64 },
225 { BFD_RELOC_SPARC_HIX22, R_SPARC_HIX22 },
226 { BFD_RELOC_SPARC_LOX10, R_SPARC_LOX10 },
227 { BFD_RELOC_SPARC_H44, R_SPARC_H44 },
228 { BFD_RELOC_SPARC_M44, R_SPARC_M44 },
229 { BFD_RELOC_SPARC_L44, R_SPARC_L44 },
230 { BFD_RELOC_SPARC_REGISTER, R_SPARC_REGISTER }
233 static reloc_howto_type *
234 sparc64_elf_reloc_type_lookup (abfd, code)
235 bfd *abfd ATTRIBUTE_UNUSED;
236 bfd_reloc_code_real_type code;
239 for (i = 0; i < sizeof (sparc_reloc_map) / sizeof (struct elf_reloc_map); i++)
241 if (sparc_reloc_map[i].bfd_reloc_val == code)
242 return &sparc64_elf_howto_table[(int) sparc_reloc_map[i].elf_reloc_val];
248 sparc64_elf_info_to_howto (abfd, cache_ptr, dst)
249 bfd *abfd ATTRIBUTE_UNUSED;
251 Elf64_Internal_Rela *dst;
253 BFD_ASSERT (ELF64_R_TYPE_ID (dst->r_info) < (unsigned int) R_SPARC_max_std);
254 cache_ptr->howto = &sparc64_elf_howto_table[ELF64_R_TYPE_ID (dst->r_info)];
257 /* Due to the way how we handle R_SPARC_OLO10, each entry in a SHT_RELA
258 section can represent up to two relocs, we must tell the user to allocate
262 sparc64_elf_get_reloc_upper_bound (abfd, sec)
263 bfd *abfd ATTRIBUTE_UNUSED;
266 return (sec->reloc_count * 2 + 1) * sizeof (arelent *);
270 sparc64_elf_get_dynamic_reloc_upper_bound (abfd)
273 return _bfd_elf_get_dynamic_reloc_upper_bound (abfd) * 2;
276 /* Read relocations for ASECT from REL_HDR. There are RELOC_COUNT of
277 them. We cannot use generic elf routines for this, because R_SPARC_OLO10
278 has secondary addend in ELF64_R_TYPE_DATA. We handle it as two relocations
279 for the same location, R_SPARC_LO10 and R_SPARC_13. */
282 sparc64_elf_slurp_one_reloc_table (abfd, asect, rel_hdr, symbols, dynamic)
285 Elf_Internal_Shdr *rel_hdr;
289 PTR allocated = NULL;
290 bfd_byte *native_relocs;
297 allocated = (PTR) bfd_malloc (rel_hdr->sh_size);
298 if (allocated == NULL)
301 if (bfd_seek (abfd, rel_hdr->sh_offset, SEEK_SET) != 0
302 || bfd_bread (allocated, rel_hdr->sh_size, abfd) != rel_hdr->sh_size)
305 native_relocs = (bfd_byte *) allocated;
307 relents = asect->relocation + asect->reloc_count;
309 entsize = rel_hdr->sh_entsize;
310 BFD_ASSERT (entsize == sizeof (Elf64_External_Rela));
312 count = rel_hdr->sh_size / entsize;
314 for (i = 0, relent = relents; i < count;
315 i++, relent++, native_relocs += entsize)
317 Elf_Internal_Rela rela;
319 bfd_elf64_swap_reloca_in (abfd, (Elf64_External_Rela *) native_relocs, &rela);
321 /* The address of an ELF reloc is section relative for an object
322 file, and absolute for an executable file or shared library.
323 The address of a normal BFD reloc is always section relative,
324 and the address of a dynamic reloc is absolute.. */
325 if ((abfd->flags & (EXEC_P | DYNAMIC)) == 0 || dynamic)
326 relent->address = rela.r_offset;
328 relent->address = rela.r_offset - asect->vma;
330 if (ELF64_R_SYM (rela.r_info) == 0)
331 relent->sym_ptr_ptr = bfd_abs_section_ptr->symbol_ptr_ptr;
336 ps = symbols + ELF64_R_SYM (rela.r_info) - 1;
339 /* Canonicalize ELF section symbols. FIXME: Why? */
340 if ((s->flags & BSF_SECTION_SYM) == 0)
341 relent->sym_ptr_ptr = ps;
343 relent->sym_ptr_ptr = s->section->symbol_ptr_ptr;
346 relent->addend = rela.r_addend;
348 BFD_ASSERT (ELF64_R_TYPE_ID (rela.r_info) < (unsigned int) R_SPARC_max_std);
349 if (ELF64_R_TYPE_ID (rela.r_info) == R_SPARC_OLO10)
351 relent->howto = &sparc64_elf_howto_table[R_SPARC_LO10];
352 relent[1].address = relent->address;
354 relent->sym_ptr_ptr = bfd_abs_section_ptr->symbol_ptr_ptr;
355 relent->addend = ELF64_R_TYPE_DATA (rela.r_info);
356 relent->howto = &sparc64_elf_howto_table[R_SPARC_13];
359 relent->howto = &sparc64_elf_howto_table[ELF64_R_TYPE_ID (rela.r_info)];
362 asect->reloc_count += relent - relents;
364 if (allocated != NULL)
370 if (allocated != NULL)
375 /* Read in and swap the external relocs. */
378 sparc64_elf_slurp_reloc_table (abfd, asect, symbols, dynamic)
384 struct bfd_elf_section_data * const d = elf_section_data (asect);
385 Elf_Internal_Shdr *rel_hdr;
386 Elf_Internal_Shdr *rel_hdr2;
389 if (asect->relocation != NULL)
394 if ((asect->flags & SEC_RELOC) == 0
395 || asect->reloc_count == 0)
398 rel_hdr = &d->rel_hdr;
399 rel_hdr2 = d->rel_hdr2;
401 BFD_ASSERT (asect->rel_filepos == rel_hdr->sh_offset
402 || (rel_hdr2 && asect->rel_filepos == rel_hdr2->sh_offset));
406 /* Note that ASECT->RELOC_COUNT tends not to be accurate in this
407 case because relocations against this section may use the
408 dynamic symbol table, and in that case bfd_section_from_shdr
409 in elf.c does not update the RELOC_COUNT. */
410 if (asect->_raw_size == 0)
413 rel_hdr = &d->this_hdr;
414 asect->reloc_count = NUM_SHDR_ENTRIES (rel_hdr);
418 amt = asect->reloc_count;
419 amt *= 2 * sizeof (arelent);
420 asect->relocation = (arelent *) bfd_alloc (abfd, amt);
421 if (asect->relocation == NULL)
424 /* The sparc64_elf_slurp_one_reloc_table routine increments reloc_count. */
425 asect->reloc_count = 0;
427 if (!sparc64_elf_slurp_one_reloc_table (abfd, asect, rel_hdr, symbols,
432 && !sparc64_elf_slurp_one_reloc_table (abfd, asect, rel_hdr2, symbols,
439 /* Canonicalize the dynamic relocation entries. Note that we return
440 the dynamic relocations as a single block, although they are
441 actually associated with particular sections; the interface, which
442 was designed for SunOS style shared libraries, expects that there
443 is only one set of dynamic relocs. Any section that was actually
444 installed in the BFD, and has type SHT_REL or SHT_RELA, and uses
445 the dynamic symbol table, is considered to be a dynamic reloc
449 sparc64_elf_canonicalize_dynamic_reloc (abfd, storage, syms)
457 if (elf_dynsymtab (abfd) == 0)
459 bfd_set_error (bfd_error_invalid_operation);
464 for (s = abfd->sections; s != NULL; s = s->next)
466 if (elf_section_data (s)->this_hdr.sh_link == elf_dynsymtab (abfd)
467 && (elf_section_data (s)->this_hdr.sh_type == SHT_RELA))
472 if (! sparc64_elf_slurp_reloc_table (abfd, s, syms, true))
474 count = s->reloc_count;
476 for (i = 0; i < count; i++)
487 /* Write out the relocs. */
490 sparc64_elf_write_relocs (abfd, sec, data)
495 boolean *failedp = (boolean *) data;
496 Elf_Internal_Shdr *rela_hdr;
497 Elf64_External_Rela *outbound_relocas, *src_rela;
498 unsigned int idx, count;
499 asymbol *last_sym = 0;
500 int last_sym_idx = 0;
502 /* If we have already failed, don't do anything. */
506 if ((sec->flags & SEC_RELOC) == 0)
509 /* The linker backend writes the relocs out itself, and sets the
510 reloc_count field to zero to inhibit writing them here. Also,
511 sometimes the SEC_RELOC flag gets set even when there aren't any
513 if (sec->reloc_count == 0)
516 /* We can combine two relocs that refer to the same address
517 into R_SPARC_OLO10 if first one is R_SPARC_LO10 and the
518 latter is R_SPARC_13 with no associated symbol. */
520 for (idx = 0; idx < sec->reloc_count; idx++)
526 addr = sec->orelocation[idx]->address;
527 if (sec->orelocation[idx]->howto->type == R_SPARC_LO10
528 && idx < sec->reloc_count - 1)
530 arelent *r = sec->orelocation[idx + 1];
532 if (r->howto->type == R_SPARC_13
533 && r->address == addr
534 && bfd_is_abs_section ((*r->sym_ptr_ptr)->section)
535 && (*r->sym_ptr_ptr)->value == 0)
540 rela_hdr = &elf_section_data (sec)->rel_hdr;
542 rela_hdr->sh_size = rela_hdr->sh_entsize * count;
543 rela_hdr->contents = (PTR) bfd_alloc (abfd, rela_hdr->sh_size);
544 if (rela_hdr->contents == NULL)
550 /* Figure out whether the relocations are RELA or REL relocations. */
551 if (rela_hdr->sh_type != SHT_RELA)
554 /* orelocation has the data, reloc_count has the count... */
555 outbound_relocas = (Elf64_External_Rela *) rela_hdr->contents;
556 src_rela = outbound_relocas;
558 for (idx = 0; idx < sec->reloc_count; idx++)
560 Elf_Internal_Rela dst_rela;
565 ptr = sec->orelocation[idx];
567 /* The address of an ELF reloc is section relative for an object
568 file, and absolute for an executable file or shared library.
569 The address of a BFD reloc is always section relative. */
570 if ((abfd->flags & (EXEC_P | DYNAMIC)) == 0)
571 dst_rela.r_offset = ptr->address;
573 dst_rela.r_offset = ptr->address + sec->vma;
575 sym = *ptr->sym_ptr_ptr;
578 else if (bfd_is_abs_section (sym->section) && sym->value == 0)
583 n = _bfd_elf_symbol_from_bfd_symbol (abfd, &sym);
592 if ((*ptr->sym_ptr_ptr)->the_bfd != NULL
593 && (*ptr->sym_ptr_ptr)->the_bfd->xvec != abfd->xvec
594 && ! _bfd_elf_validate_reloc (abfd, ptr))
600 if (ptr->howto->type == R_SPARC_LO10
601 && idx < sec->reloc_count - 1)
603 arelent *r = sec->orelocation[idx + 1];
605 if (r->howto->type == R_SPARC_13
606 && r->address == ptr->address
607 && bfd_is_abs_section ((*r->sym_ptr_ptr)->section)
608 && (*r->sym_ptr_ptr)->value == 0)
612 = ELF64_R_INFO (n, ELF64_R_TYPE_INFO (r->addend,
616 dst_rela.r_info = ELF64_R_INFO (n, R_SPARC_LO10);
619 dst_rela.r_info = ELF64_R_INFO (n, ptr->howto->type);
621 dst_rela.r_addend = ptr->addend;
622 bfd_elf64_swap_reloca_out (abfd, &dst_rela, src_rela);
627 /* Sparc64 ELF linker hash table. */
629 struct sparc64_elf_app_reg
632 unsigned short shndx;
637 struct sparc64_elf_link_hash_table
639 struct elf_link_hash_table root;
641 struct sparc64_elf_app_reg app_regs [4];
644 /* Get the Sparc64 ELF linker hash table from a link_info structure. */
646 #define sparc64_elf_hash_table(p) \
647 ((struct sparc64_elf_link_hash_table *) ((p)->hash))
649 /* Create a Sparc64 ELF linker hash table. */
651 static struct bfd_link_hash_table *
652 sparc64_elf_bfd_link_hash_table_create (abfd)
655 struct sparc64_elf_link_hash_table *ret;
656 bfd_size_type amt = sizeof (struct sparc64_elf_link_hash_table);
658 ret = (struct sparc64_elf_link_hash_table *) bfd_zalloc (abfd, amt);
659 if (ret == (struct sparc64_elf_link_hash_table *) NULL)
662 if (! _bfd_elf_link_hash_table_init (&ret->root, abfd,
663 _bfd_elf_link_hash_newfunc))
665 bfd_release (abfd, ret);
669 return &ret->root.root;
672 /* Utility for performing the standard initial work of an instruction
674 *PRELOCATION will contain the relocated item.
675 *PINSN will contain the instruction from the input stream.
676 If the result is `bfd_reloc_other' the caller can continue with
677 performing the relocation. Otherwise it must stop and return the
678 value to its caller. */
680 static bfd_reloc_status_type
681 init_insn_reloc (abfd,
690 arelent *reloc_entry;
693 asection *input_section;
695 bfd_vma *prelocation;
699 reloc_howto_type *howto = reloc_entry->howto;
701 if (output_bfd != (bfd *) NULL
702 && (symbol->flags & BSF_SECTION_SYM) == 0
703 && (! howto->partial_inplace
704 || reloc_entry->addend == 0))
706 reloc_entry->address += input_section->output_offset;
710 /* This works because partial_inplace == false. */
711 if (output_bfd != NULL)
712 return bfd_reloc_continue;
714 if (reloc_entry->address > input_section->_cooked_size)
715 return bfd_reloc_outofrange;
717 relocation = (symbol->value
718 + symbol->section->output_section->vma
719 + symbol->section->output_offset);
720 relocation += reloc_entry->addend;
721 if (howto->pc_relative)
723 relocation -= (input_section->output_section->vma
724 + input_section->output_offset);
725 relocation -= reloc_entry->address;
728 *prelocation = relocation;
729 *pinsn = bfd_get_32 (abfd, (bfd_byte *) data + reloc_entry->address);
730 return bfd_reloc_other;
733 /* For unsupported relocs. */
735 static bfd_reloc_status_type
736 sparc_elf_notsup_reloc (abfd,
743 bfd *abfd ATTRIBUTE_UNUSED;
744 arelent *reloc_entry ATTRIBUTE_UNUSED;
745 asymbol *symbol ATTRIBUTE_UNUSED;
746 PTR data ATTRIBUTE_UNUSED;
747 asection *input_section ATTRIBUTE_UNUSED;
748 bfd *output_bfd ATTRIBUTE_UNUSED;
749 char **error_message ATTRIBUTE_UNUSED;
751 return bfd_reloc_notsupported;
754 /* Handle the WDISP16 reloc. */
756 static bfd_reloc_status_type
757 sparc_elf_wdisp16_reloc (abfd, reloc_entry, symbol, data, input_section,
758 output_bfd, error_message)
760 arelent *reloc_entry;
763 asection *input_section;
765 char **error_message ATTRIBUTE_UNUSED;
769 bfd_reloc_status_type status;
771 status = init_insn_reloc (abfd, reloc_entry, symbol, data,
772 input_section, output_bfd, &relocation, &insn);
773 if (status != bfd_reloc_other)
776 insn &= ~ (bfd_vma) 0x303fff;
777 insn |= (((relocation >> 2) & 0xc000) << 6) | ((relocation >> 2) & 0x3fff);
778 bfd_put_32 (abfd, insn, (bfd_byte *) data + reloc_entry->address);
780 if ((bfd_signed_vma) relocation < - 0x40000
781 || (bfd_signed_vma) relocation > 0x3ffff)
782 return bfd_reloc_overflow;
787 /* Handle the HIX22 reloc. */
789 static bfd_reloc_status_type
790 sparc_elf_hix22_reloc (abfd,
798 arelent *reloc_entry;
801 asection *input_section;
803 char **error_message ATTRIBUTE_UNUSED;
807 bfd_reloc_status_type status;
809 status = init_insn_reloc (abfd, reloc_entry, symbol, data,
810 input_section, output_bfd, &relocation, &insn);
811 if (status != bfd_reloc_other)
814 relocation ^= MINUS_ONE;
815 insn = (insn &~ (bfd_vma) 0x3fffff) | ((relocation >> 10) & 0x3fffff);
816 bfd_put_32 (abfd, insn, (bfd_byte *) data + reloc_entry->address);
818 if ((relocation & ~ (bfd_vma) 0xffffffff) != 0)
819 return bfd_reloc_overflow;
824 /* Handle the LOX10 reloc. */
826 static bfd_reloc_status_type
827 sparc_elf_lox10_reloc (abfd,
835 arelent *reloc_entry;
838 asection *input_section;
840 char **error_message ATTRIBUTE_UNUSED;
844 bfd_reloc_status_type status;
846 status = init_insn_reloc (abfd, reloc_entry, symbol, data,
847 input_section, output_bfd, &relocation, &insn);
848 if (status != bfd_reloc_other)
851 insn = (insn &~ (bfd_vma) 0x1fff) | 0x1c00 | (relocation & 0x3ff);
852 bfd_put_32 (abfd, insn, (bfd_byte *) data + reloc_entry->address);
859 /* Both the headers and the entries are icache aligned. */
860 #define PLT_ENTRY_SIZE 32
861 #define PLT_HEADER_SIZE (4 * PLT_ENTRY_SIZE)
862 #define LARGE_PLT_THRESHOLD 32768
863 #define GOT_RESERVED_ENTRIES 1
865 #define ELF_DYNAMIC_INTERPRETER "/usr/lib/sparcv9/ld.so.1"
867 /* Fill in the .plt section. */
870 sparc64_elf_build_plt (output_bfd, contents, nentries)
872 unsigned char *contents;
875 const unsigned int nop = 0x01000000;
878 /* The first four entries are reserved, and are initially undefined.
879 We fill them with `illtrap 0' to force ld.so to do something. */
881 for (i = 0; i < PLT_HEADER_SIZE/4; ++i)
882 bfd_put_32 (output_bfd, (bfd_vma) 0, contents+i*4);
884 /* The first 32768 entries are close enough to plt1 to get there via
885 a straight branch. */
887 for (i = 4; i < LARGE_PLT_THRESHOLD && i < nentries; ++i)
889 unsigned char *entry = contents + i * PLT_ENTRY_SIZE;
890 unsigned int sethi, ba;
892 /* sethi (. - plt0), %g1 */
893 sethi = 0x03000000 | (i * PLT_ENTRY_SIZE);
895 /* ba,a,pt %xcc, plt1 */
896 ba = 0x30680000 | (((contents+PLT_ENTRY_SIZE) - (entry+4)) / 4 & 0x7ffff);
898 bfd_put_32 (output_bfd, (bfd_vma) sethi, entry);
899 bfd_put_32 (output_bfd, (bfd_vma) ba, entry + 4);
900 bfd_put_32 (output_bfd, (bfd_vma) nop, entry + 8);
901 bfd_put_32 (output_bfd, (bfd_vma) nop, entry + 12);
902 bfd_put_32 (output_bfd, (bfd_vma) nop, entry + 16);
903 bfd_put_32 (output_bfd, (bfd_vma) nop, entry + 20);
904 bfd_put_32 (output_bfd, (bfd_vma) nop, entry + 24);
905 bfd_put_32 (output_bfd, (bfd_vma) nop, entry + 28);
908 /* Now the tricky bit. Entries 32768 and higher are grouped in blocks of
909 160: 160 entries and 160 pointers. This is to separate code from data,
910 which is much friendlier on the cache. */
912 for (; i < nentries; i += 160)
914 int block = (i + 160 <= nentries ? 160 : nentries - i);
915 for (j = 0; j < block; ++j)
917 unsigned char *entry, *ptr;
920 entry = contents + i*PLT_ENTRY_SIZE + j*4*6;
921 ptr = contents + i*PLT_ENTRY_SIZE + block*4*6 + j*8;
923 /* ldx [%o7 + ptr - entry+4], %g1 */
924 ldx = 0xc25be000 | ((ptr - entry+4) & 0x1fff);
932 bfd_put_32 (output_bfd, (bfd_vma) 0x8a10000f, entry);
933 bfd_put_32 (output_bfd, (bfd_vma) 0x40000002, entry + 4);
934 bfd_put_32 (output_bfd, (bfd_vma) nop, entry + 8);
935 bfd_put_32 (output_bfd, (bfd_vma) ldx, entry + 12);
936 bfd_put_32 (output_bfd, (bfd_vma) 0x83c3c001, entry + 16);
937 bfd_put_32 (output_bfd, (bfd_vma) 0x9e100005, entry + 20);
939 bfd_put_64 (output_bfd, (bfd_vma) (contents - (entry + 4)), ptr);
944 /* Return the offset of a particular plt entry within the .plt section. */
947 sparc64_elf_plt_entry_offset (index)
952 if (index < LARGE_PLT_THRESHOLD)
953 return index * PLT_ENTRY_SIZE;
955 /* See above for details. */
957 block = (index - LARGE_PLT_THRESHOLD) / 160;
958 ofs = (index - LARGE_PLT_THRESHOLD) % 160;
960 return (LARGE_PLT_THRESHOLD + block * 160) * PLT_ENTRY_SIZE + ofs * 6 * 4;
964 sparc64_elf_plt_ptr_offset (index, max)
968 bfd_vma block, ofs, last;
970 BFD_ASSERT(index >= LARGE_PLT_THRESHOLD);
972 /* See above for details. */
974 block = (((index - LARGE_PLT_THRESHOLD) / 160) * 160) + LARGE_PLT_THRESHOLD;
976 if (block + 160 > max)
977 last = (max - LARGE_PLT_THRESHOLD) % 160;
981 return (block * PLT_ENTRY_SIZE
986 /* Look through the relocs for a section during the first phase, and
987 allocate space in the global offset table or procedure linkage
991 sparc64_elf_check_relocs (abfd, info, sec, relocs)
993 struct bfd_link_info *info;
995 const Elf_Internal_Rela *relocs;
998 Elf_Internal_Shdr *symtab_hdr;
999 struct elf_link_hash_entry **sym_hashes;
1000 bfd_vma *local_got_offsets;
1001 const Elf_Internal_Rela *rel;
1002 const Elf_Internal_Rela *rel_end;
1007 if (info->relocateable || !(sec->flags & SEC_ALLOC))
1010 dynobj = elf_hash_table (info)->dynobj;
1011 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
1012 sym_hashes = elf_sym_hashes (abfd);
1013 local_got_offsets = elf_local_got_offsets (abfd);
1019 rel_end = relocs + NUM_SHDR_ENTRIES (& elf_section_data (sec)->rel_hdr);
1020 for (rel = relocs; rel < rel_end; rel++)
1022 unsigned long r_symndx;
1023 struct elf_link_hash_entry *h;
1025 r_symndx = ELF64_R_SYM (rel->r_info);
1026 if (r_symndx < symtab_hdr->sh_info)
1029 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
1031 switch (ELF64_R_TYPE_ID (rel->r_info))
1036 /* This symbol requires a global offset table entry. */
1040 /* Create the .got section. */
1041 elf_hash_table (info)->dynobj = dynobj = abfd;
1042 if (! _bfd_elf_create_got_section (dynobj, info))
1048 sgot = bfd_get_section_by_name (dynobj, ".got");
1049 BFD_ASSERT (sgot != NULL);
1052 if (srelgot == NULL && (h != NULL || info->shared))
1054 srelgot = bfd_get_section_by_name (dynobj, ".rela.got");
1055 if (srelgot == NULL)
1057 srelgot = bfd_make_section (dynobj, ".rela.got");
1059 || ! bfd_set_section_flags (dynobj, srelgot,
1064 | SEC_LINKER_CREATED
1066 || ! bfd_set_section_alignment (dynobj, srelgot, 3))
1073 if (h->got.offset != (bfd_vma) -1)
1075 /* We have already allocated space in the .got. */
1078 h->got.offset = sgot->_raw_size;
1080 /* Make sure this symbol is output as a dynamic symbol. */
1081 if (h->dynindx == -1)
1083 if (! bfd_elf64_link_record_dynamic_symbol (info, h))
1087 srelgot->_raw_size += sizeof (Elf64_External_Rela);
1091 /* This is a global offset table entry for a local
1093 if (local_got_offsets == NULL)
1096 register unsigned int i;
1098 size = symtab_hdr->sh_info;
1099 size *= sizeof (bfd_vma);
1100 local_got_offsets = (bfd_vma *) bfd_alloc (abfd, size);
1101 if (local_got_offsets == NULL)
1103 elf_local_got_offsets (abfd) = local_got_offsets;
1104 for (i = 0; i < symtab_hdr->sh_info; i++)
1105 local_got_offsets[i] = (bfd_vma) -1;
1107 if (local_got_offsets[r_symndx] != (bfd_vma) -1)
1109 /* We have already allocated space in the .got. */
1112 local_got_offsets[r_symndx] = sgot->_raw_size;
1116 /* If we are generating a shared object, we need to
1117 output a R_SPARC_RELATIVE reloc so that the
1118 dynamic linker can adjust this GOT entry. */
1119 srelgot->_raw_size += sizeof (Elf64_External_Rela);
1123 sgot->_raw_size += 8;
1126 /* Doesn't work for 64-bit -fPIC, since sethi/or builds
1127 unsigned numbers. If we permit ourselves to modify
1128 code so we get sethi/xor, this could work.
1129 Question: do we consider conditionally re-enabling
1130 this for -fpic, once we know about object code models? */
1131 /* If the .got section is more than 0x1000 bytes, we add
1132 0x1000 to the value of _GLOBAL_OFFSET_TABLE_, so that 13
1133 bit relocations have a greater chance of working. */
1134 if (sgot->_raw_size >= 0x1000
1135 && elf_hash_table (info)->hgot->root.u.def.value == 0)
1136 elf_hash_table (info)->hgot->root.u.def.value = 0x1000;
1141 case R_SPARC_WPLT30:
1143 case R_SPARC_HIPLT22:
1144 case R_SPARC_LOPLT10:
1145 case R_SPARC_PCPLT32:
1146 case R_SPARC_PCPLT22:
1147 case R_SPARC_PCPLT10:
1149 /* This symbol requires a procedure linkage table entry. We
1150 actually build the entry in adjust_dynamic_symbol,
1151 because this might be a case of linking PIC code without
1152 linking in any dynamic objects, in which case we don't
1153 need to generate a procedure linkage table after all. */
1157 /* It does not make sense to have a procedure linkage
1158 table entry for a local symbol. */
1159 bfd_set_error (bfd_error_bad_value);
1163 /* Make sure this symbol is output as a dynamic symbol. */
1164 if (h->dynindx == -1)
1166 if (! bfd_elf64_link_record_dynamic_symbol (info, h))
1170 h->elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_PLT;
1175 case R_SPARC_PC_HH22:
1176 case R_SPARC_PC_HM10:
1177 case R_SPARC_PC_LM22:
1179 && strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)
1183 case R_SPARC_DISP16:
1184 case R_SPARC_DISP32:
1185 case R_SPARC_DISP64:
1186 case R_SPARC_WDISP30:
1187 case R_SPARC_WDISP22:
1188 case R_SPARC_WDISP19:
1189 case R_SPARC_WDISP16:
1218 /* When creating a shared object, we must copy these relocs
1219 into the output file. We create a reloc section in
1220 dynobj and make room for the reloc.
1222 But don't do this for debugging sections -- this shows up
1223 with DWARF2 -- first because they are not loaded, and
1224 second because DWARF sez the debug info is not to be
1225 biased by the load address. */
1226 if (info->shared && (sec->flags & SEC_ALLOC))
1232 name = (bfd_elf_string_from_elf_section
1234 elf_elfheader (abfd)->e_shstrndx,
1235 elf_section_data (sec)->rel_hdr.sh_name));
1239 BFD_ASSERT (strncmp (name, ".rela", 5) == 0
1240 && strcmp (bfd_get_section_name (abfd, sec),
1243 sreloc = bfd_get_section_by_name (dynobj, name);
1248 sreloc = bfd_make_section (dynobj, name);
1249 flags = (SEC_HAS_CONTENTS | SEC_READONLY
1250 | SEC_IN_MEMORY | SEC_LINKER_CREATED);
1251 if ((sec->flags & SEC_ALLOC) != 0)
1252 flags |= SEC_ALLOC | SEC_LOAD;
1254 || ! bfd_set_section_flags (dynobj, sreloc, flags)
1255 || ! bfd_set_section_alignment (dynobj, sreloc, 3))
1258 if (sec->flags & SEC_READONLY)
1259 info->flags |= DF_TEXTREL;
1262 sreloc->_raw_size += sizeof (Elf64_External_Rela);
1266 case R_SPARC_REGISTER:
1267 /* Nothing to do. */
1271 (*_bfd_error_handler) (_("%s: check_relocs: unhandled reloc type %d"),
1272 bfd_get_filename(abfd),
1273 ELF64_R_TYPE_ID (rel->r_info));
1281 /* Hook called by the linker routine which adds symbols from an object
1282 file. We use it for STT_REGISTER symbols. */
1285 sparc64_elf_add_symbol_hook (abfd, info, sym, namep, flagsp, secp, valp)
1287 struct bfd_link_info *info;
1288 const Elf_Internal_Sym *sym;
1290 flagword *flagsp ATTRIBUTE_UNUSED;
1291 asection **secp ATTRIBUTE_UNUSED;
1292 bfd_vma *valp ATTRIBUTE_UNUSED;
1294 static char *stt_types[] = { "NOTYPE", "OBJECT", "FUNCTION" };
1296 if (ELF_ST_TYPE (sym->st_info) == STT_REGISTER)
1299 struct sparc64_elf_app_reg *p;
1301 reg = (int)sym->st_value;
1304 case 2: reg -= 2; break;
1305 case 6: reg -= 4; break;
1307 (*_bfd_error_handler)
1308 (_("%s: Only registers %%g[2367] can be declared using STT_REGISTER"),
1309 bfd_get_filename (abfd));
1313 if (info->hash->creator != abfd->xvec
1314 || (abfd->flags & DYNAMIC) != 0)
1316 /* STT_REGISTER only works when linking an elf64_sparc object.
1317 If STT_REGISTER comes from a dynamic object, don't put it into
1318 the output bfd. The dynamic linker will recheck it. */
1323 p = sparc64_elf_hash_table(info)->app_regs + reg;
1325 if (p->name != NULL && strcmp (p->name, *namep))
1327 (*_bfd_error_handler)
1328 (_("Register %%g%d used incompatibly: "
1329 "previously declared in %s to %s, in %s redefined to %s"),
1331 bfd_get_filename (p->abfd), *p->name ? p->name : "#scratch",
1332 bfd_get_filename (abfd), **namep ? *namep : "#scratch");
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) type = 0;
1350 (*_bfd_error_handler)
1351 (_("Symbol `%s' has differing types: "
1352 "previously %s, REGISTER in %s"),
1353 *namep, stt_types [type], bfd_get_filename (abfd));
1357 p->name = bfd_hash_allocate (&info->hash->table,
1358 strlen (*namep) + 1);
1362 strcpy (p->name, *namep);
1366 p->bind = ELF_ST_BIND (sym->st_info);
1368 p->shndx = sym->st_shndx;
1372 if (p->bind == STB_WEAK
1373 && ELF_ST_BIND (sym->st_info) == STB_GLOBAL)
1375 p->bind = STB_GLOBAL;
1382 else if (! *namep || ! **namep)
1387 struct sparc64_elf_app_reg *p;
1389 p = sparc64_elf_hash_table(info)->app_regs;
1390 for (i = 0; i < 4; i++, p++)
1391 if (p->name != NULL && ! strcmp (p->name, *namep))
1393 unsigned char type = ELF_ST_TYPE (sym->st_info);
1395 if (type > STT_FUNC) type = 0;
1396 (*_bfd_error_handler)
1397 (_("Symbol `%s' has differing types: "
1398 "REGISTER in %s, %s in %s"),
1399 *namep, bfd_get_filename (p->abfd), stt_types [type],
1400 bfd_get_filename (abfd));
1407 /* This function takes care of emiting STT_REGISTER symbols
1408 which we cannot easily keep in the symbol hash table. */
1411 sparc64_elf_output_arch_syms (output_bfd, info, finfo, func)
1412 bfd *output_bfd ATTRIBUTE_UNUSED;
1413 struct bfd_link_info *info;
1415 boolean (*func) PARAMS ((PTR, const char *,
1416 Elf_Internal_Sym *, asection *));
1419 struct sparc64_elf_app_reg *app_regs =
1420 sparc64_elf_hash_table(info)->app_regs;
1421 Elf_Internal_Sym sym;
1423 /* We arranged in size_dynamic_sections to put the STT_REGISTER entries
1424 at the end of the dynlocal list, so they came at the end of the local
1425 symbols in the symtab. Except that they aren't STB_LOCAL, so we need
1426 to back up symtab->sh_info. */
1427 if (elf_hash_table (info)->dynlocal)
1429 bfd * dynobj = elf_hash_table (info)->dynobj;
1430 asection *dynsymsec = bfd_get_section_by_name (dynobj, ".dynsym");
1431 struct elf_link_local_dynamic_entry *e;
1433 for (e = elf_hash_table (info)->dynlocal; e ; e = e->next)
1434 if (e->input_indx == -1)
1438 elf_section_data (dynsymsec->output_section)->this_hdr.sh_info
1443 if (info->strip == strip_all)
1446 for (reg = 0; reg < 4; reg++)
1447 if (app_regs [reg].name != NULL)
1449 if (info->strip == strip_some
1450 && bfd_hash_lookup (info->keep_hash,
1451 app_regs [reg].name,
1452 false, false) == NULL)
1455 sym.st_value = reg < 2 ? reg + 2 : reg + 4;
1458 sym.st_info = ELF_ST_INFO (app_regs [reg].bind, STT_REGISTER);
1459 sym.st_shndx = app_regs [reg].shndx;
1460 if (! (*func) (finfo, app_regs [reg].name, &sym,
1461 sym.st_shndx == SHN_ABS
1462 ? bfd_abs_section_ptr : bfd_und_section_ptr))
1470 sparc64_elf_get_symbol_type (elf_sym, type)
1471 Elf_Internal_Sym * elf_sym;
1474 if (ELF_ST_TYPE (elf_sym->st_info) == STT_REGISTER)
1475 return STT_REGISTER;
1480 /* A STB_GLOBAL,STT_REGISTER symbol should be BSF_GLOBAL
1481 even in SHN_UNDEF section. */
1484 sparc64_elf_symbol_processing (abfd, asym)
1485 bfd *abfd ATTRIBUTE_UNUSED;
1488 elf_symbol_type *elfsym;
1490 elfsym = (elf_symbol_type *) asym;
1491 if (elfsym->internal_elf_sym.st_info
1492 == ELF_ST_INFO (STB_GLOBAL, STT_REGISTER))
1494 asym->flags |= BSF_GLOBAL;
1498 /* Adjust a symbol defined by a dynamic object and referenced by a
1499 regular object. The current definition is in some section of the
1500 dynamic object, but we're not including those sections. We have to
1501 change the definition to something the rest of the link can
1505 sparc64_elf_adjust_dynamic_symbol (info, h)
1506 struct bfd_link_info *info;
1507 struct elf_link_hash_entry *h;
1511 unsigned int power_of_two;
1513 dynobj = elf_hash_table (info)->dynobj;
1515 /* Make sure we know what is going on here. */
1516 BFD_ASSERT (dynobj != NULL
1517 && ((h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_PLT)
1518 || h->weakdef != NULL
1519 || ((h->elf_link_hash_flags
1520 & ELF_LINK_HASH_DEF_DYNAMIC) != 0
1521 && (h->elf_link_hash_flags
1522 & ELF_LINK_HASH_REF_REGULAR) != 0
1523 && (h->elf_link_hash_flags
1524 & ELF_LINK_HASH_DEF_REGULAR) == 0)));
1526 /* If this is a function, put it in the procedure linkage table. We
1527 will fill in the contents of the procedure linkage table later
1528 (although we could actually do it here). The STT_NOTYPE
1529 condition is a hack specifically for the Oracle libraries
1530 delivered for Solaris; for some inexplicable reason, they define
1531 some of their functions as STT_NOTYPE when they really should be
1533 if (h->type == STT_FUNC
1534 || (h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_PLT) != 0
1535 || (h->type == STT_NOTYPE
1536 && (h->root.type == bfd_link_hash_defined
1537 || h->root.type == bfd_link_hash_defweak)
1538 && (h->root.u.def.section->flags & SEC_CODE) != 0))
1540 if (! elf_hash_table (info)->dynamic_sections_created)
1542 /* This case can occur if we saw a WPLT30 reloc in an input
1543 file, but none of the input files were dynamic objects.
1544 In such a case, we don't actually need to build a
1545 procedure linkage table, and we can just do a WDISP30
1547 BFD_ASSERT ((h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_PLT) != 0);
1551 s = bfd_get_section_by_name (dynobj, ".plt");
1552 BFD_ASSERT (s != NULL);
1554 /* The first four bit in .plt is reserved. */
1555 if (s->_raw_size == 0)
1556 s->_raw_size = PLT_HEADER_SIZE;
1558 /* If this symbol is not defined in a regular file, and we are
1559 not generating a shared library, then set the symbol to this
1560 location in the .plt. This is required to make function
1561 pointers compare as equal between the normal executable and
1562 the shared library. */
1564 && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0)
1566 h->root.u.def.section = s;
1567 h->root.u.def.value = s->_raw_size;
1570 /* To simplify matters later, just store the plt index here. */
1571 h->plt.offset = s->_raw_size / PLT_ENTRY_SIZE;
1573 /* Make room for this entry. */
1574 s->_raw_size += PLT_ENTRY_SIZE;
1576 /* We also need to make an entry in the .rela.plt section. */
1578 s = bfd_get_section_by_name (dynobj, ".rela.plt");
1579 BFD_ASSERT (s != NULL);
1581 s->_raw_size += sizeof (Elf64_External_Rela);
1583 /* The procedure linkage table size is bounded by the magnitude
1584 of the offset we can describe in the entry. */
1585 if (s->_raw_size >= (bfd_vma)1 << 32)
1587 bfd_set_error (bfd_error_bad_value);
1594 /* If this is a weak symbol, and there is a real definition, the
1595 processor independent code will have arranged for us to see the
1596 real definition first, and we can just use the same value. */
1597 if (h->weakdef != NULL)
1599 BFD_ASSERT (h->weakdef->root.type == bfd_link_hash_defined
1600 || h->weakdef->root.type == bfd_link_hash_defweak);
1601 h->root.u.def.section = h->weakdef->root.u.def.section;
1602 h->root.u.def.value = h->weakdef->root.u.def.value;
1606 /* This is a reference to a symbol defined by a dynamic object which
1607 is not a function. */
1609 /* If we are creating a shared library, we must presume that the
1610 only references to the symbol are via the global offset table.
1611 For such cases we need not do anything here; the relocations will
1612 be handled correctly by relocate_section. */
1616 /* We must allocate the symbol in our .dynbss section, which will
1617 become part of the .bss section of the executable. There will be
1618 an entry for this symbol in the .dynsym section. The dynamic
1619 object will contain position independent code, so all references
1620 from the dynamic object to this symbol will go through the global
1621 offset table. The dynamic linker will use the .dynsym entry to
1622 determine the address it must put in the global offset table, so
1623 both the dynamic object and the regular object will refer to the
1624 same memory location for the variable. */
1626 s = bfd_get_section_by_name (dynobj, ".dynbss");
1627 BFD_ASSERT (s != NULL);
1629 /* We must generate a R_SPARC_COPY reloc to tell the dynamic linker
1630 to copy the initial value out of the dynamic object and into the
1631 runtime process image. We need to remember the offset into the
1632 .rel.bss section we are going to use. */
1633 if ((h->root.u.def.section->flags & SEC_ALLOC) != 0)
1637 srel = bfd_get_section_by_name (dynobj, ".rela.bss");
1638 BFD_ASSERT (srel != NULL);
1639 srel->_raw_size += sizeof (Elf64_External_Rela);
1640 h->elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_COPY;
1643 /* We need to figure out the alignment required for this symbol. I
1644 have no idea how ELF linkers handle this. 16-bytes is the size
1645 of the largest type that requires hard alignment -- long double. */
1646 power_of_two = bfd_log2 (h->size);
1647 if (power_of_two > 4)
1650 /* Apply the required alignment. */
1651 s->_raw_size = BFD_ALIGN (s->_raw_size,
1652 (bfd_size_type) (1 << power_of_two));
1653 if (power_of_two > bfd_get_section_alignment (dynobj, s))
1655 if (! bfd_set_section_alignment (dynobj, s, power_of_two))
1659 /* Define the symbol as being at this point in the section. */
1660 h->root.u.def.section = s;
1661 h->root.u.def.value = s->_raw_size;
1663 /* Increment the section size to make room for the symbol. */
1664 s->_raw_size += h->size;
1669 /* Set the sizes of the dynamic sections. */
1672 sparc64_elf_size_dynamic_sections (output_bfd, info)
1674 struct bfd_link_info *info;
1680 dynobj = elf_hash_table (info)->dynobj;
1681 BFD_ASSERT (dynobj != NULL);
1683 if (elf_hash_table (info)->dynamic_sections_created)
1685 /* Set the contents of the .interp section to the interpreter. */
1688 s = bfd_get_section_by_name (dynobj, ".interp");
1689 BFD_ASSERT (s != NULL);
1690 s->_raw_size = sizeof ELF_DYNAMIC_INTERPRETER;
1691 s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
1696 /* We may have created entries in the .rela.got section.
1697 However, if we are not creating the dynamic sections, we will
1698 not actually use these entries. Reset the size of .rela.got,
1699 which will cause it to get stripped from the output file
1701 s = bfd_get_section_by_name (dynobj, ".rela.got");
1706 /* The check_relocs and adjust_dynamic_symbol entry points have
1707 determined the sizes of the various dynamic sections. Allocate
1710 for (s = dynobj->sections; s != NULL; s = s->next)
1715 if ((s->flags & SEC_LINKER_CREATED) == 0)
1718 /* It's OK to base decisions on the section name, because none
1719 of the dynobj section names depend upon the input files. */
1720 name = bfd_get_section_name (dynobj, s);
1724 if (strncmp (name, ".rela", 5) == 0)
1726 if (s->_raw_size == 0)
1728 /* If we don't need this section, strip it from the
1729 output file. This is to handle .rela.bss and
1730 .rel.plt. We must create it in
1731 create_dynamic_sections, because it must be created
1732 before the linker maps input sections to output
1733 sections. The linker does that before
1734 adjust_dynamic_symbol is called, and it is that
1735 function which decides whether anything needs to go
1736 into these sections. */
1741 if (strcmp (name, ".rela.plt") == 0)
1744 /* We use the reloc_count field as a counter if we need
1745 to copy relocs into the output file. */
1749 else if (strcmp (name, ".plt") != 0
1750 && strncmp (name, ".got", 4) != 0)
1752 /* It's not one of our sections, so don't allocate space. */
1758 _bfd_strip_section_from_output (info, s);
1762 /* Allocate memory for the section contents. Zero the memory
1763 for the benefit of .rela.plt, which has 4 unused entries
1764 at the beginning, and we don't want garbage. */
1765 s->contents = (bfd_byte *) bfd_zalloc (dynobj, s->_raw_size);
1766 if (s->contents == NULL && s->_raw_size != 0)
1770 if (elf_hash_table (info)->dynamic_sections_created)
1772 /* Add some entries to the .dynamic section. We fill in the
1773 values later, in sparc64_elf_finish_dynamic_sections, but we
1774 must add the entries now so that we get the correct size for
1775 the .dynamic section. The DT_DEBUG entry is filled in by the
1776 dynamic linker and used by the debugger. */
1777 #define add_dynamic_entry(TAG, VAL) \
1778 bfd_elf64_add_dynamic_entry (info, (bfd_vma) (TAG), (bfd_vma) (VAL))
1781 struct sparc64_elf_app_reg * app_regs;
1782 struct bfd_strtab_hash *dynstr;
1783 struct elf_link_hash_table *eht = elf_hash_table (info);
1787 if (!add_dynamic_entry (DT_DEBUG, 0))
1793 if (!add_dynamic_entry (DT_PLTGOT, 0)
1794 || !add_dynamic_entry (DT_PLTRELSZ, 0)
1795 || !add_dynamic_entry (DT_PLTREL, DT_RELA)
1796 || !add_dynamic_entry (DT_JMPREL, 0))
1800 if (!add_dynamic_entry (DT_RELA, 0)
1801 || !add_dynamic_entry (DT_RELASZ, 0)
1802 || !add_dynamic_entry (DT_RELAENT, sizeof (Elf64_External_Rela)))
1805 if (info->flags & DF_TEXTREL)
1807 if (!add_dynamic_entry (DT_TEXTREL, 0))
1811 /* Add dynamic STT_REGISTER symbols and corresponding DT_SPARC_REGISTER
1812 entries if needed. */
1813 app_regs = sparc64_elf_hash_table (info)->app_regs;
1814 dynstr = eht->dynstr;
1816 for (reg = 0; reg < 4; reg++)
1817 if (app_regs [reg].name != NULL)
1819 struct elf_link_local_dynamic_entry *entry, *e;
1821 if (!add_dynamic_entry (DT_SPARC_REGISTER, 0))
1824 entry = (struct elf_link_local_dynamic_entry *)
1825 bfd_hash_allocate (&info->hash->table, sizeof (*entry));
1829 /* We cheat here a little bit: the symbol will not be local, so we
1830 put it at the end of the dynlocal linked list. We will fix it
1831 later on, as we have to fix other fields anyway. */
1832 entry->isym.st_value = reg < 2 ? reg + 2 : reg + 4;
1833 entry->isym.st_size = 0;
1834 if (*app_regs [reg].name != '\0')
1836 = _bfd_stringtab_add (dynstr, app_regs[reg].name, true, false);
1838 entry->isym.st_name = 0;
1839 entry->isym.st_other = 0;
1840 entry->isym.st_info = ELF_ST_INFO (app_regs [reg].bind,
1842 entry->isym.st_shndx = app_regs [reg].shndx;
1844 entry->input_bfd = output_bfd;
1845 entry->input_indx = -1;
1847 if (eht->dynlocal == NULL)
1848 eht->dynlocal = entry;
1851 for (e = eht->dynlocal; e->next; e = e->next)
1858 #undef add_dynamic_entry
1863 #define SET_SEC_DO_RELAX(section) do { elf_section_data(section)->tdata = (void *)1; } while (0)
1864 #define SEC_DO_RELAX(section) (elf_section_data(section)->tdata == (void *)1)
1867 sparc64_elf_relax_section (abfd, section, link_info, again)
1868 bfd *abfd ATTRIBUTE_UNUSED;
1869 asection *section ATTRIBUTE_UNUSED;
1870 struct bfd_link_info *link_info ATTRIBUTE_UNUSED;
1874 SET_SEC_DO_RELAX (section);
1878 /* Relocate a SPARC64 ELF section. */
1881 sparc64_elf_relocate_section (output_bfd, info, input_bfd, input_section,
1882 contents, relocs, local_syms, local_sections)
1884 struct bfd_link_info *info;
1886 asection *input_section;
1888 Elf_Internal_Rela *relocs;
1889 Elf_Internal_Sym *local_syms;
1890 asection **local_sections;
1893 Elf_Internal_Shdr *symtab_hdr;
1894 struct elf_link_hash_entry **sym_hashes;
1895 bfd_vma *local_got_offsets;
1900 Elf_Internal_Rela *rel;
1901 Elf_Internal_Rela *relend;
1903 dynobj = elf_hash_table (info)->dynobj;
1904 symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
1905 sym_hashes = elf_sym_hashes (input_bfd);
1906 local_got_offsets = elf_local_got_offsets (input_bfd);
1908 if (elf_hash_table(info)->hgot == NULL)
1911 got_base = elf_hash_table (info)->hgot->root.u.def.value;
1913 sgot = splt = sreloc = NULL;
1916 relend = relocs + NUM_SHDR_ENTRIES (& elf_section_data (input_section)->rel_hdr);
1917 for (; rel < relend; rel++)
1920 reloc_howto_type *howto;
1921 unsigned long r_symndx;
1922 struct elf_link_hash_entry *h;
1923 Elf_Internal_Sym *sym;
1926 bfd_reloc_status_type r;
1928 r_type = ELF64_R_TYPE_ID (rel->r_info);
1929 if (r_type < 0 || r_type >= (int) R_SPARC_max_std)
1931 bfd_set_error (bfd_error_bad_value);
1934 howto = sparc64_elf_howto_table + r_type;
1936 r_symndx = ELF64_R_SYM (rel->r_info);
1938 if (info->relocateable)
1940 /* This is a relocateable link. We don't have to change
1941 anything, unless the reloc is against a section symbol,
1942 in which case we have to adjust according to where the
1943 section symbol winds up in the output section. */
1944 if (r_symndx < symtab_hdr->sh_info)
1946 sym = local_syms + r_symndx;
1947 if (ELF_ST_TYPE (sym->st_info) == STT_SECTION)
1949 sec = local_sections[r_symndx];
1950 rel->r_addend += sec->output_offset + sym->st_value;
1957 /* This is a final link. */
1961 if (r_symndx < symtab_hdr->sh_info)
1963 sym = local_syms + r_symndx;
1964 sec = local_sections[r_symndx];
1965 relocation = (sec->output_section->vma
1966 + sec->output_offset
1971 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
1972 while (h->root.type == bfd_link_hash_indirect
1973 || h->root.type == bfd_link_hash_warning)
1974 h = (struct elf_link_hash_entry *) h->root.u.i.link;
1975 if (h->root.type == bfd_link_hash_defined
1976 || h->root.type == bfd_link_hash_defweak)
1978 boolean skip_it = false;
1979 sec = h->root.u.def.section;
1983 case R_SPARC_WPLT30:
1985 case R_SPARC_HIPLT22:
1986 case R_SPARC_LOPLT10:
1987 case R_SPARC_PCPLT32:
1988 case R_SPARC_PCPLT22:
1989 case R_SPARC_PCPLT10:
1991 if (h->plt.offset != (bfd_vma) -1)
1998 if (elf_hash_table(info)->dynamic_sections_created
2000 || (!info->symbolic && h->dynindx != -1)
2001 || !(h->elf_link_hash_flags
2002 & ELF_LINK_HASH_DEF_REGULAR)))
2008 case R_SPARC_PC_HH22:
2009 case R_SPARC_PC_HM10:
2010 case R_SPARC_PC_LM22:
2011 if (!strcmp(h->root.root.string, "_GLOBAL_OFFSET_TABLE_"))
2019 case R_SPARC_DISP16:
2020 case R_SPARC_DISP32:
2021 case R_SPARC_WDISP30:
2022 case R_SPARC_WDISP22:
2035 case R_SPARC_WDISP19:
2036 case R_SPARC_WDISP16:
2040 case R_SPARC_DISP64:
2049 && ((!info->symbolic && h->dynindx != -1)
2050 || !(h->elf_link_hash_flags
2051 & ELF_LINK_HASH_DEF_REGULAR)))
2058 /* In these cases, we don't need the relocation
2059 value. We check specially because in some
2060 obscure cases sec->output_section will be NULL. */
2065 relocation = (h->root.u.def.value
2066 + sec->output_section->vma
2067 + sec->output_offset);
2070 else if (h->root.type == bfd_link_hash_undefweak)
2072 else if (info->shared
2073 && (!info->symbolic || info->allow_shlib_undefined)
2074 && !info->no_undefined
2075 && ELF_ST_VISIBILITY (h->other) == STV_DEFAULT)
2079 if (! ((*info->callbacks->undefined_symbol)
2080 (info, h->root.root.string, input_bfd,
2081 input_section, rel->r_offset,
2082 (!info->shared || info->no_undefined
2083 || ELF_ST_VISIBILITY (h->other)))))
2086 /* To avoid generating warning messages about truncated
2087 relocations, set the relocation's address to be the same as
2088 the start of this section. */
2090 if (input_section->output_section != NULL)
2091 relocation = input_section->output_section->vma;
2097 /* When generating a shared object, these relocations are copied
2098 into the output file to be resolved at run time. */
2099 if (info->shared && (input_section->flags & SEC_ALLOC))
2105 case R_SPARC_PC_HH22:
2106 case R_SPARC_PC_HM10:
2107 case R_SPARC_PC_LM22:
2109 && !strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_"))
2113 case R_SPARC_DISP16:
2114 case R_SPARC_DISP32:
2115 case R_SPARC_WDISP30:
2116 case R_SPARC_WDISP22:
2117 case R_SPARC_WDISP19:
2118 case R_SPARC_WDISP16:
2119 case R_SPARC_DISP64:
2149 Elf_Internal_Rela outrel;
2155 (bfd_elf_string_from_elf_section
2157 elf_elfheader (input_bfd)->e_shstrndx,
2158 elf_section_data (input_section)->rel_hdr.sh_name));
2163 BFD_ASSERT (strncmp (name, ".rela", 5) == 0
2164 && strcmp (bfd_get_section_name(input_bfd,
2168 sreloc = bfd_get_section_by_name (dynobj, name);
2169 BFD_ASSERT (sreloc != NULL);
2174 if (elf_section_data (input_section)->stab_info == NULL)
2175 outrel.r_offset = rel->r_offset;
2180 off = (_bfd_stab_section_offset
2181 (output_bfd, &elf_hash_table (info)->stab_info,
2183 &elf_section_data (input_section)->stab_info,
2185 if (off == MINUS_ONE)
2187 outrel.r_offset = off;
2190 outrel.r_offset += (input_section->output_section->vma
2191 + input_section->output_offset);
2193 /* Optimize unaligned reloc usage now that we know where
2194 it finally resides. */
2198 if (outrel.r_offset & 1) r_type = R_SPARC_UA16;
2201 if (!(outrel.r_offset & 1)) r_type = R_SPARC_16;
2204 if (outrel.r_offset & 3) r_type = R_SPARC_UA32;
2207 if (!(outrel.r_offset & 3)) r_type = R_SPARC_32;
2210 if (outrel.r_offset & 7) r_type = R_SPARC_UA64;
2213 if (!(outrel.r_offset & 7)) r_type = R_SPARC_64;
2218 memset (&outrel, 0, sizeof outrel);
2219 /* h->dynindx may be -1 if the symbol was marked to
2222 && ((! info->symbolic && h->dynindx != -1)
2223 || (h->elf_link_hash_flags
2224 & ELF_LINK_HASH_DEF_REGULAR) == 0))
2226 BFD_ASSERT (h->dynindx != -1);
2228 = ELF64_R_INFO (h->dynindx,
2230 ELF64_R_TYPE_DATA (rel->r_info),
2232 outrel.r_addend = rel->r_addend;
2236 if (r_type == R_SPARC_64)
2238 outrel.r_info = ELF64_R_INFO (0, R_SPARC_RELATIVE);
2239 outrel.r_addend = relocation + rel->r_addend;
2246 sec = local_sections[r_symndx];
2249 BFD_ASSERT (h->root.type == bfd_link_hash_defined
2251 == bfd_link_hash_defweak));
2252 sec = h->root.u.def.section;
2254 if (sec != NULL && bfd_is_abs_section (sec))
2256 else if (sec == NULL || sec->owner == NULL)
2258 bfd_set_error (bfd_error_bad_value);
2265 osec = sec->output_section;
2266 indx = elf_section_data (osec)->dynindx;
2268 /* FIXME: we really should be able to link non-pic
2269 shared libraries. */
2273 (*_bfd_error_handler)
2274 (_("%s: probably compiled without -fPIC?"),
2275 bfd_get_filename (input_bfd));
2276 bfd_set_error (bfd_error_bad_value);
2282 = ELF64_R_INFO (indx,
2284 ELF64_R_TYPE_DATA (rel->r_info),
2286 outrel.r_addend = relocation + rel->r_addend;
2290 bfd_elf64_swap_reloca_out (output_bfd, &outrel,
2291 (((Elf64_External_Rela *)
2293 + sreloc->reloc_count));
2294 ++sreloc->reloc_count;
2296 /* This reloc will be computed at runtime, so there's no
2297 need to do anything now. */
2309 /* Relocation is to the entry for this symbol in the global
2313 sgot = bfd_get_section_by_name (dynobj, ".got");
2314 BFD_ASSERT (sgot != NULL);
2319 bfd_vma off = h->got.offset;
2320 BFD_ASSERT (off != (bfd_vma) -1);
2322 if (! elf_hash_table (info)->dynamic_sections_created
2324 && (info->symbolic || h->dynindx == -1)
2325 && (h->elf_link_hash_flags
2326 & ELF_LINK_HASH_DEF_REGULAR)))
2328 /* This is actually a static link, or it is a -Bsymbolic
2329 link and the symbol is defined locally, or the symbol
2330 was forced to be local because of a version file. We
2331 must initialize this entry in the global offset table.
2332 Since the offset must always be a multiple of 8, we
2333 use the least significant bit to record whether we
2334 have initialized it already.
2336 When doing a dynamic link, we create a .rela.got
2337 relocation entry to initialize the value. This is
2338 done in the finish_dynamic_symbol routine. */
2344 bfd_put_64 (output_bfd, relocation,
2345 sgot->contents + off);
2349 relocation = sgot->output_offset + off - got_base;
2355 BFD_ASSERT (local_got_offsets != NULL);
2356 off = local_got_offsets[r_symndx];
2357 BFD_ASSERT (off != (bfd_vma) -1);
2359 /* The offset must always be a multiple of 8. We use
2360 the least significant bit to record whether we have
2361 already processed this entry. */
2366 local_got_offsets[r_symndx] |= 1;
2371 Elf_Internal_Rela outrel;
2373 /* The Solaris 2.7 64-bit linker adds the contents
2374 of the location to the value of the reloc.
2375 Note this is different behaviour to the
2376 32-bit linker, which both adds the contents
2377 and ignores the addend. So clear the location. */
2378 bfd_put_64 (output_bfd, (bfd_vma) 0,
2379 sgot->contents + off);
2381 /* We need to generate a R_SPARC_RELATIVE reloc
2382 for the dynamic linker. */
2383 srelgot = bfd_get_section_by_name(dynobj, ".rela.got");
2384 BFD_ASSERT (srelgot != NULL);
2386 outrel.r_offset = (sgot->output_section->vma
2387 + sgot->output_offset
2389 outrel.r_info = ELF64_R_INFO (0, R_SPARC_RELATIVE);
2390 outrel.r_addend = relocation;
2391 bfd_elf64_swap_reloca_out (output_bfd, &outrel,
2392 (((Elf64_External_Rela *)
2394 + srelgot->reloc_count));
2395 ++srelgot->reloc_count;
2398 bfd_put_64 (output_bfd, relocation, sgot->contents + off);
2400 relocation = sgot->output_offset + off - got_base;
2404 case R_SPARC_WPLT30:
2406 case R_SPARC_HIPLT22:
2407 case R_SPARC_LOPLT10:
2408 case R_SPARC_PCPLT32:
2409 case R_SPARC_PCPLT22:
2410 case R_SPARC_PCPLT10:
2412 /* Relocation is to the entry for this symbol in the
2413 procedure linkage table. */
2414 BFD_ASSERT (h != NULL);
2416 if (h->plt.offset == (bfd_vma) -1)
2418 /* We didn't make a PLT entry for this symbol. This
2419 happens when statically linking PIC code, or when
2420 using -Bsymbolic. */
2426 splt = bfd_get_section_by_name (dynobj, ".plt");
2427 BFD_ASSERT (splt != NULL);
2430 relocation = (splt->output_section->vma
2431 + splt->output_offset
2432 + sparc64_elf_plt_entry_offset (h->plt.offset));
2433 if (r_type == R_SPARC_WPLT30)
2441 relocation += rel->r_addend;
2442 relocation = (relocation & 0x3ff) + ELF64_R_TYPE_DATA (rel->r_info);
2444 x = bfd_get_32 (input_bfd, contents + rel->r_offset);
2445 x = (x & ~(bfd_vma) 0x1fff) | (relocation & 0x1fff);
2446 bfd_put_32 (input_bfd, x, contents + rel->r_offset);
2448 r = bfd_check_overflow (howto->complain_on_overflow,
2449 howto->bitsize, howto->rightshift,
2450 bfd_arch_bits_per_address (input_bfd),
2455 case R_SPARC_WDISP16:
2459 relocation += rel->r_addend;
2460 /* Adjust for pc-relative-ness. */
2461 relocation -= (input_section->output_section->vma
2462 + input_section->output_offset);
2463 relocation -= rel->r_offset;
2465 x = bfd_get_32 (input_bfd, contents + rel->r_offset);
2466 x &= ~(bfd_vma) 0x303fff;
2467 x |= ((((relocation >> 2) & 0xc000) << 6)
2468 | ((relocation >> 2) & 0x3fff));
2469 bfd_put_32 (input_bfd, x, contents + rel->r_offset);
2471 r = bfd_check_overflow (howto->complain_on_overflow,
2472 howto->bitsize, howto->rightshift,
2473 bfd_arch_bits_per_address (input_bfd),
2482 relocation += rel->r_addend;
2483 relocation = relocation ^ MINUS_ONE;
2485 x = bfd_get_32 (input_bfd, contents + rel->r_offset);
2486 x = (x & ~(bfd_vma) 0x3fffff) | ((relocation >> 10) & 0x3fffff);
2487 bfd_put_32 (input_bfd, x, contents + rel->r_offset);
2489 r = bfd_check_overflow (howto->complain_on_overflow,
2490 howto->bitsize, howto->rightshift,
2491 bfd_arch_bits_per_address (input_bfd),
2500 relocation += rel->r_addend;
2501 relocation = (relocation & 0x3ff) | 0x1c00;
2503 x = bfd_get_32 (input_bfd, contents + rel->r_offset);
2504 x = (x & ~(bfd_vma) 0x1fff) | relocation;
2505 bfd_put_32 (input_bfd, x, contents + rel->r_offset);
2511 case R_SPARC_WDISP30:
2513 if (SEC_DO_RELAX (input_section)
2514 && rel->r_offset + 4 < input_section->_raw_size)
2518 #define XCC (2 << 20)
2519 #define COND(x) (((x)&0xf)<<25)
2520 #define CONDA COND(0x8)
2521 #define INSN_BPA (F2(0,1) | CONDA | BPRED | XCC)
2522 #define INSN_BA (F2(0,2) | CONDA)
2523 #define INSN_OR F3(2, 0x2, 0)
2524 #define INSN_NOP F2(0,4)
2528 /* If the instruction is a call with either:
2530 arithmetic instruction with rd == %o7
2531 where rs1 != %o7 and rs2 if it is register != %o7
2532 then we can optimize if the call destination is near
2533 by changing the call into a branch always. */
2534 x = bfd_get_32 (input_bfd, contents + rel->r_offset);
2535 y = bfd_get_32 (input_bfd, contents + rel->r_offset + 4);
2536 if ((x & OP(~0)) == OP(1) && (y & OP(~0)) == OP(2))
2538 if (((y & OP3(~0)) == OP3(0x3d) /* restore */
2539 || ((y & OP3(0x28)) == 0 /* arithmetic */
2540 && (y & RD(~0)) == RD(O7)))
2541 && (y & RS1(~0)) != RS1(O7)
2543 || (y & RS2(~0)) != RS2(O7)))
2547 reloc = relocation + rel->r_addend - rel->r_offset;
2548 reloc -= (input_section->output_section->vma
2549 + input_section->output_offset);
2553 /* Ensure the branch fits into simm22. */
2554 if ((reloc & ~(bfd_vma)0x7fffff)
2555 && ((reloc | 0x7fffff) != MINUS_ONE))
2559 /* Check whether it fits into simm19. */
2560 if ((reloc & 0x3c0000) == 0
2561 || (reloc & 0x3c0000) == 0x3c0000)
2562 x = INSN_BPA | (reloc & 0x7ffff); /* ba,pt %xcc */
2564 x = INSN_BA | (reloc & 0x3fffff); /* ba */
2565 bfd_put_32 (input_bfd, x, contents + rel->r_offset);
2567 if (rel->r_offset >= 4
2568 && (y & (0xffffffff ^ RS1(~0)))
2569 == (INSN_OR | RD(O7) | RS2(G0)))
2574 z = bfd_get_32 (input_bfd,
2575 contents + rel->r_offset - 4);
2576 if ((z & (0xffffffff ^ RD(~0)))
2577 != (INSN_OR | RS1(O7) | RS2(G0)))
2585 If call foo was replaced with ba, replace
2586 or %rN, %g0, %o7 with nop. */
2588 reg = (y & RS1(~0)) >> 14;
2589 if (reg != ((z & RD(~0)) >> 25)
2590 || reg == G0 || reg == O7)
2593 bfd_put_32 (input_bfd, (bfd_vma) INSN_NOP,
2594 contents + rel->r_offset + 4);
2604 r = _bfd_final_link_relocate (howto, input_bfd, input_section,
2605 contents, rel->r_offset,
2606 relocation, rel->r_addend);
2616 case bfd_reloc_outofrange:
2619 case bfd_reloc_overflow:
2625 if (h->root.type == bfd_link_hash_undefweak
2626 && howto->pc_relative)
2628 /* Assume this is a call protected by other code that
2629 detect the symbol is undefined. If this is the case,
2630 we can safely ignore the overflow. If not, the
2631 program is hosed anyway, and a little warning isn't
2636 name = h->root.root.string;
2640 name = (bfd_elf_string_from_elf_section
2642 symtab_hdr->sh_link,
2647 name = bfd_section_name (input_bfd, sec);
2649 if (! ((*info->callbacks->reloc_overflow)
2650 (info, name, howto->name, (bfd_vma) 0,
2651 input_bfd, input_section, rel->r_offset)))
2661 /* Finish up dynamic symbol handling. We set the contents of various
2662 dynamic sections here. */
2665 sparc64_elf_finish_dynamic_symbol (output_bfd, info, h, sym)
2667 struct bfd_link_info *info;
2668 struct elf_link_hash_entry *h;
2669 Elf_Internal_Sym *sym;
2673 dynobj = elf_hash_table (info)->dynobj;
2675 if (h->plt.offset != (bfd_vma) -1)
2679 Elf_Internal_Rela rela;
2681 /* This symbol has an entry in the PLT. Set it up. */
2683 BFD_ASSERT (h->dynindx != -1);
2685 splt = bfd_get_section_by_name (dynobj, ".plt");
2686 srela = bfd_get_section_by_name (dynobj, ".rela.plt");
2687 BFD_ASSERT (splt != NULL && srela != NULL);
2689 /* Fill in the entry in the .rela.plt section. */
2691 if (h->plt.offset < LARGE_PLT_THRESHOLD)
2693 rela.r_offset = sparc64_elf_plt_entry_offset (h->plt.offset);
2698 bfd_vma max = splt->_raw_size / PLT_ENTRY_SIZE;
2699 rela.r_offset = sparc64_elf_plt_ptr_offset (h->plt.offset, max);
2700 rela.r_addend = -(sparc64_elf_plt_entry_offset (h->plt.offset) + 4)
2701 -(splt->output_section->vma + splt->output_offset);
2703 rela.r_offset += (splt->output_section->vma + splt->output_offset);
2704 rela.r_info = ELF64_R_INFO (h->dynindx, R_SPARC_JMP_SLOT);
2706 /* Adjust for the first 4 reserved elements in the .plt section
2707 when setting the offset in the .rela.plt section.
2708 Sun forgot to read their own ABI and copied elf32-sparc behaviour,
2709 thus .plt[4] has corresponding .rela.plt[0] and so on. */
2711 bfd_elf64_swap_reloca_out (output_bfd, &rela,
2712 ((Elf64_External_Rela *) srela->contents
2713 + (h->plt.offset - 4)));
2715 if ((h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0)
2717 /* Mark the symbol as undefined, rather than as defined in
2718 the .plt section. Leave the value alone. */
2719 sym->st_shndx = SHN_UNDEF;
2720 /* If the symbol is weak, we do need to clear the value.
2721 Otherwise, the PLT entry would provide a definition for
2722 the symbol even if the symbol wasn't defined anywhere,
2723 and so the symbol would never be NULL. */
2724 if ((h->elf_link_hash_flags & ELF_LINK_HASH_REF_REGULAR_NONWEAK)
2730 if (h->got.offset != (bfd_vma) -1)
2734 Elf_Internal_Rela rela;
2736 /* This symbol has an entry in the GOT. Set it up. */
2738 sgot = bfd_get_section_by_name (dynobj, ".got");
2739 srela = bfd_get_section_by_name (dynobj, ".rela.got");
2740 BFD_ASSERT (sgot != NULL && srela != NULL);
2742 rela.r_offset = (sgot->output_section->vma
2743 + sgot->output_offset
2744 + (h->got.offset &~ (bfd_vma) 1));
2746 /* If this is a -Bsymbolic link, and the symbol is defined
2747 locally, we just want to emit a RELATIVE reloc. Likewise if
2748 the symbol was forced to be local because of a version file.
2749 The entry in the global offset table will already have been
2750 initialized in the relocate_section function. */
2752 && (info->symbolic || h->dynindx == -1)
2753 && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR))
2755 asection *sec = h->root.u.def.section;
2756 rela.r_info = ELF64_R_INFO (0, R_SPARC_RELATIVE);
2757 rela.r_addend = (h->root.u.def.value
2758 + sec->output_section->vma
2759 + sec->output_offset);
2763 bfd_put_64 (output_bfd, (bfd_vma) 0, sgot->contents + h->got.offset);
2764 rela.r_info = ELF64_R_INFO (h->dynindx, R_SPARC_GLOB_DAT);
2768 bfd_elf64_swap_reloca_out (output_bfd, &rela,
2769 ((Elf64_External_Rela *) srela->contents
2770 + srela->reloc_count));
2771 ++srela->reloc_count;
2774 if ((h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_COPY) != 0)
2777 Elf_Internal_Rela rela;
2779 /* This symbols needs a copy reloc. Set it up. */
2781 BFD_ASSERT (h->dynindx != -1);
2783 s = bfd_get_section_by_name (h->root.u.def.section->owner,
2785 BFD_ASSERT (s != NULL);
2787 rela.r_offset = (h->root.u.def.value
2788 + h->root.u.def.section->output_section->vma
2789 + h->root.u.def.section->output_offset);
2790 rela.r_info = ELF64_R_INFO (h->dynindx, R_SPARC_COPY);
2792 bfd_elf64_swap_reloca_out (output_bfd, &rela,
2793 ((Elf64_External_Rela *) s->contents
2798 /* Mark some specially defined symbols as absolute. */
2799 if (strcmp (h->root.root.string, "_DYNAMIC") == 0
2800 || strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0
2801 || strcmp (h->root.root.string, "_PROCEDURE_LINKAGE_TABLE_") == 0)
2802 sym->st_shndx = SHN_ABS;
2807 /* Finish up the dynamic sections. */
2810 sparc64_elf_finish_dynamic_sections (output_bfd, info)
2812 struct bfd_link_info *info;
2815 int stt_regidx = -1;
2819 dynobj = elf_hash_table (info)->dynobj;
2821 sdyn = bfd_get_section_by_name (dynobj, ".dynamic");
2823 if (elf_hash_table (info)->dynamic_sections_created)
2826 Elf64_External_Dyn *dyncon, *dynconend;
2828 splt = bfd_get_section_by_name (dynobj, ".plt");
2829 BFD_ASSERT (splt != NULL && sdyn != NULL);
2831 dyncon = (Elf64_External_Dyn *) sdyn->contents;
2832 dynconend = (Elf64_External_Dyn *) (sdyn->contents + sdyn->_raw_size);
2833 for (; dyncon < dynconend; dyncon++)
2835 Elf_Internal_Dyn dyn;
2839 bfd_elf64_swap_dyn_in (dynobj, dyncon, &dyn);
2843 case DT_PLTGOT: name = ".plt"; size = false; break;
2844 case DT_PLTRELSZ: name = ".rela.plt"; size = true; break;
2845 case DT_JMPREL: name = ".rela.plt"; size = false; break;
2846 case DT_SPARC_REGISTER:
2847 if (stt_regidx == -1)
2850 _bfd_elf_link_lookup_local_dynindx (info, output_bfd, -1);
2851 if (stt_regidx == -1)
2854 dyn.d_un.d_val = stt_regidx++;
2855 bfd_elf64_swap_dyn_out (output_bfd, &dyn, dyncon);
2857 default: name = NULL; size = false; break;
2864 s = bfd_get_section_by_name (output_bfd, name);
2870 dyn.d_un.d_ptr = s->vma;
2873 if (s->_cooked_size != 0)
2874 dyn.d_un.d_val = s->_cooked_size;
2876 dyn.d_un.d_val = s->_raw_size;
2879 bfd_elf64_swap_dyn_out (output_bfd, &dyn, dyncon);
2883 /* Initialize the contents of the .plt section. */
2884 if (splt->_raw_size > 0)
2886 sparc64_elf_build_plt (output_bfd, splt->contents,
2887 (int) (splt->_raw_size / PLT_ENTRY_SIZE));
2890 elf_section_data (splt->output_section)->this_hdr.sh_entsize =
2894 /* Set the first entry in the global offset table to the address of
2895 the dynamic section. */
2896 sgot = bfd_get_section_by_name (dynobj, ".got");
2897 BFD_ASSERT (sgot != NULL);
2898 if (sgot->_raw_size > 0)
2901 bfd_put_64 (output_bfd, (bfd_vma) 0, sgot->contents);
2903 bfd_put_64 (output_bfd,
2904 sdyn->output_section->vma + sdyn->output_offset,
2908 elf_section_data (sgot->output_section)->this_hdr.sh_entsize = 8;
2913 static enum elf_reloc_type_class
2914 sparc64_elf_reloc_type_class (type)
2919 case R_SPARC_RELATIVE:
2920 return reloc_class_relative;
2921 case R_SPARC_JMP_SLOT:
2922 return reloc_class_plt;
2924 return reloc_class_copy;
2926 return reloc_class_normal;
2930 /* Functions for dealing with the e_flags field. */
2932 /* Copy backend specific data from one object module to another */
2934 sparc64_elf_copy_private_bfd_data (ibfd, obfd)
2937 if ( bfd_get_flavour (ibfd) != bfd_target_elf_flavour
2938 || bfd_get_flavour (obfd) != bfd_target_elf_flavour)
2941 BFD_ASSERT (!elf_flags_init (obfd)
2942 || (elf_elfheader (obfd)->e_flags
2943 == elf_elfheader (ibfd)->e_flags));
2945 elf_elfheader (obfd)->e_flags = elf_elfheader (ibfd)->e_flags;
2946 elf_flags_init (obfd) = true;
2950 /* Merge backend specific data from an object file to the output
2951 object file when linking. */
2954 sparc64_elf_merge_private_bfd_data (ibfd, obfd)
2959 flagword new_flags, old_flags;
2962 if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour
2963 || bfd_get_flavour (obfd) != bfd_target_elf_flavour)
2966 new_flags = elf_elfheader (ibfd)->e_flags;
2967 old_flags = elf_elfheader (obfd)->e_flags;
2969 if (!elf_flags_init (obfd)) /* First call, no flags set */
2971 elf_flags_init (obfd) = true;
2972 elf_elfheader (obfd)->e_flags = new_flags;
2975 else if (new_flags == old_flags) /* Compatible flags are ok */
2978 else /* Incompatible flags */
2982 #define EF_SPARC_ISA_EXTENSIONS \
2983 (EF_SPARC_SUN_US1 | EF_SPARC_SUN_US3 | EF_SPARC_HAL_R1)
2985 if ((ibfd->flags & DYNAMIC) != 0)
2987 /* We don't want dynamic objects memory ordering and
2988 architecture to have any role. That's what dynamic linker
2990 new_flags &= ~(EF_SPARCV9_MM | EF_SPARC_ISA_EXTENSIONS);
2991 new_flags |= (old_flags
2992 & (EF_SPARCV9_MM | EF_SPARC_ISA_EXTENSIONS));
2996 /* Choose the highest architecture requirements. */
2997 old_flags |= (new_flags & EF_SPARC_ISA_EXTENSIONS);
2998 new_flags |= (old_flags & EF_SPARC_ISA_EXTENSIONS);
2999 if ((old_flags & (EF_SPARC_SUN_US1 | EF_SPARC_SUN_US3))
3000 && (old_flags & EF_SPARC_HAL_R1))
3003 (*_bfd_error_handler)
3004 (_("%s: linking UltraSPARC specific with HAL specific code"),
3005 bfd_get_filename (ibfd));
3007 /* Choose the most restrictive memory ordering. */
3008 old_mm = (old_flags & EF_SPARCV9_MM);
3009 new_mm = (new_flags & EF_SPARCV9_MM);
3010 old_flags &= ~EF_SPARCV9_MM;
3011 new_flags &= ~EF_SPARCV9_MM;
3012 if (new_mm < old_mm)
3014 old_flags |= old_mm;
3015 new_flags |= old_mm;
3018 /* Warn about any other mismatches */
3019 if (new_flags != old_flags)
3022 (*_bfd_error_handler)
3023 (_("%s: uses different e_flags (0x%lx) fields than previous modules (0x%lx)"),
3024 bfd_get_filename (ibfd), (long)new_flags, (long)old_flags);
3027 elf_elfheader (obfd)->e_flags = old_flags;
3031 bfd_set_error (bfd_error_bad_value);
3038 /* Print a STT_REGISTER symbol to file FILE. */
3041 sparc64_elf_print_symbol_all (abfd, filep, symbol)
3042 bfd *abfd ATTRIBUTE_UNUSED;
3046 FILE *file = (FILE *) filep;
3049 if (ELF_ST_TYPE (((elf_symbol_type *) symbol)->internal_elf_sym.st_info)
3053 reg = ((elf_symbol_type *) symbol)->internal_elf_sym.st_value;
3054 type = symbol->flags;
3055 fprintf (file, "REG_%c%c%11s%c%c R", "GOLI" [reg / 8], '0' + (reg & 7), "",
3057 ? (type & BSF_GLOBAL) ? '!' : 'l'
3058 : (type & BSF_GLOBAL) ? 'g' : ' '),
3059 (type & BSF_WEAK) ? 'w' : ' ');
3060 if (symbol->name == NULL || symbol->name [0] == '\0')
3063 return symbol->name;
3066 /* Set the right machine number for a SPARC64 ELF file. */
3069 sparc64_elf_object_p (abfd)
3072 unsigned long mach = bfd_mach_sparc_v9;
3074 if (elf_elfheader (abfd)->e_flags & EF_SPARC_SUN_US3)
3075 mach = bfd_mach_sparc_v9b;
3076 else if (elf_elfheader (abfd)->e_flags & EF_SPARC_SUN_US1)
3077 mach = bfd_mach_sparc_v9a;
3078 return bfd_default_set_arch_mach (abfd, bfd_arch_sparc, mach);
3081 /* Relocations in the 64 bit SPARC ELF ABI are more complex than in
3082 standard ELF, because R_SPARC_OLO10 has secondary addend in
3083 ELF64_R_TYPE_DATA field. This structure is used to redirect the
3084 relocation handling routines. */
3086 const struct elf_size_info sparc64_elf_size_info =
3088 sizeof (Elf64_External_Ehdr),
3089 sizeof (Elf64_External_Phdr),
3090 sizeof (Elf64_External_Shdr),
3091 sizeof (Elf64_External_Rel),
3092 sizeof (Elf64_External_Rela),
3093 sizeof (Elf64_External_Sym),
3094 sizeof (Elf64_External_Dyn),
3095 sizeof (Elf_External_Note),
3096 4, /* hash-table entry size */
3097 /* internal relocations per external relocations.
3098 For link purposes we use just 1 internal per
3099 1 external, for assembly and slurp symbol table
3106 bfd_elf64_write_out_phdrs,
3107 bfd_elf64_write_shdrs_and_ehdr,
3108 sparc64_elf_write_relocs,
3109 bfd_elf64_swap_symbol_out,
3110 sparc64_elf_slurp_reloc_table,
3111 bfd_elf64_slurp_symbol_table,
3112 bfd_elf64_swap_dyn_in,
3113 bfd_elf64_swap_dyn_out,
3120 #define TARGET_BIG_SYM bfd_elf64_sparc_vec
3121 #define TARGET_BIG_NAME "elf64-sparc"
3122 #define ELF_ARCH bfd_arch_sparc
3123 #define ELF_MAXPAGESIZE 0x100000
3125 /* This is the official ABI value. */
3126 #define ELF_MACHINE_CODE EM_SPARCV9
3128 /* This is the value that we used before the ABI was released. */
3129 #define ELF_MACHINE_ALT1 EM_OLD_SPARCV9
3131 #define bfd_elf64_bfd_link_hash_table_create \
3132 sparc64_elf_bfd_link_hash_table_create
3134 #define elf_info_to_howto \
3135 sparc64_elf_info_to_howto
3136 #define bfd_elf64_get_reloc_upper_bound \
3137 sparc64_elf_get_reloc_upper_bound
3138 #define bfd_elf64_get_dynamic_reloc_upper_bound \
3139 sparc64_elf_get_dynamic_reloc_upper_bound
3140 #define bfd_elf64_canonicalize_dynamic_reloc \
3141 sparc64_elf_canonicalize_dynamic_reloc
3142 #define bfd_elf64_bfd_reloc_type_lookup \
3143 sparc64_elf_reloc_type_lookup
3144 #define bfd_elf64_bfd_relax_section \
3145 sparc64_elf_relax_section
3147 #define elf_backend_create_dynamic_sections \
3148 _bfd_elf_create_dynamic_sections
3149 #define elf_backend_add_symbol_hook \
3150 sparc64_elf_add_symbol_hook
3151 #define elf_backend_get_symbol_type \
3152 sparc64_elf_get_symbol_type
3153 #define elf_backend_symbol_processing \
3154 sparc64_elf_symbol_processing
3155 #define elf_backend_check_relocs \
3156 sparc64_elf_check_relocs
3157 #define elf_backend_adjust_dynamic_symbol \
3158 sparc64_elf_adjust_dynamic_symbol
3159 #define elf_backend_size_dynamic_sections \
3160 sparc64_elf_size_dynamic_sections
3161 #define elf_backend_relocate_section \
3162 sparc64_elf_relocate_section
3163 #define elf_backend_finish_dynamic_symbol \
3164 sparc64_elf_finish_dynamic_symbol
3165 #define elf_backend_finish_dynamic_sections \
3166 sparc64_elf_finish_dynamic_sections
3167 #define elf_backend_print_symbol_all \
3168 sparc64_elf_print_symbol_all
3169 #define elf_backend_output_arch_syms \
3170 sparc64_elf_output_arch_syms
3171 #define bfd_elf64_bfd_copy_private_bfd_data \
3172 sparc64_elf_copy_private_bfd_data
3173 #define bfd_elf64_bfd_merge_private_bfd_data \
3174 sparc64_elf_merge_private_bfd_data
3176 #define elf_backend_size_info \
3177 sparc64_elf_size_info
3178 #define elf_backend_object_p \
3179 sparc64_elf_object_p
3180 #define elf_backend_reloc_type_class \
3181 sparc64_elf_reloc_type_class
3183 #define elf_backend_want_got_plt 0
3184 #define elf_backend_plt_readonly 0
3185 #define elf_backend_want_plt_sym 1
3187 /* Section 5.2.4 of the ABI specifies a 256-byte boundary for the table. */
3188 #define elf_backend_plt_alignment 8
3190 #define elf_backend_got_header_size 8
3191 #define elf_backend_plt_header_size PLT_HEADER_SIZE
3193 #include "elf64-target.h"