* elf32-sparc.c (elf32_sparc_link_hash_table_create): Use bfd_zmalloc
[deliverable/binutils-gdb.git] / bfd / elf32-sparc.c
1 /* SPARC-specific support for 32-bit ELF
2 Copyright 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002,
3 2003, 2004 Free Software Foundation, Inc.
4
5 This file is part of BFD, the Binary File Descriptor library.
6
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 2 of the License, or
10 (at your option) any later version.
11
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
16
17 You should have received a copy of the GNU General Public License
18 along with this program; if not, write to the Free Software
19 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
20
21 #include "bfd.h"
22 #include "sysdep.h"
23 #include "bfdlink.h"
24 #include "libbfd.h"
25 #include "elf-bfd.h"
26 #include "elf/sparc.h"
27 #include "opcode/sparc.h"
28
29 static reloc_howto_type *elf32_sparc_reloc_type_lookup
30 PARAMS ((bfd *, bfd_reloc_code_real_type));
31 static void elf32_sparc_info_to_howto
32 PARAMS ((bfd *, arelent *, Elf_Internal_Rela *));
33 static bfd_boolean elf32_sparc_check_relocs
34 PARAMS ((bfd *, struct bfd_link_info *, asection *,
35 const Elf_Internal_Rela *));
36 static bfd_boolean elf32_sparc_adjust_dynamic_symbol
37 PARAMS ((struct bfd_link_info *, struct elf_link_hash_entry *));
38 static bfd_boolean allocate_dynrelocs
39 PARAMS ((struct elf_link_hash_entry *, PTR));
40 static bfd_boolean readonly_dynrelocs
41 PARAMS ((struct elf_link_hash_entry *, PTR));
42 static bfd_boolean elf32_sparc_omit_section_dynsym
43 PARAMS ((bfd *, struct bfd_link_info *, asection *));
44 static bfd_boolean elf32_sparc_size_dynamic_sections
45 PARAMS ((bfd *, struct bfd_link_info *));
46 static bfd_boolean elf32_sparc_new_section_hook
47 PARAMS ((bfd *, asection *));
48 static bfd_boolean elf32_sparc_relax_section
49 PARAMS ((bfd *, asection *, struct bfd_link_info *, bfd_boolean *));
50 static bfd_vma dtpoff_base
51 PARAMS ((struct bfd_link_info *));
52 static bfd_vma tpoff
53 PARAMS ((struct bfd_link_info *, bfd_vma));
54 static bfd_boolean elf32_sparc_relocate_section
55 PARAMS ((bfd *, struct bfd_link_info *, bfd *, asection *, bfd_byte *,
56 Elf_Internal_Rela *, Elf_Internal_Sym *, asection **));
57 static bfd_boolean elf32_sparc_finish_dynamic_symbol
58 PARAMS ((bfd *, struct bfd_link_info *, struct elf_link_hash_entry *,
59 Elf_Internal_Sym *));
60 static bfd_boolean elf32_sparc_finish_dynamic_sections
61 PARAMS ((bfd *, struct bfd_link_info *));
62 static bfd_boolean elf32_sparc_merge_private_bfd_data
63 PARAMS ((bfd *, bfd *));
64 static struct bfd_hash_entry *link_hash_newfunc
65 PARAMS ((struct bfd_hash_entry *, struct bfd_hash_table *, const char *));
66 static struct bfd_link_hash_table *elf32_sparc_link_hash_table_create
67 PARAMS ((bfd *));
68 static bfd_boolean create_got_section
69 PARAMS ((bfd *, struct bfd_link_info *));
70 static bfd_boolean elf32_sparc_create_dynamic_sections
71 PARAMS ((bfd *, struct bfd_link_info *));
72 static void elf32_sparc_copy_indirect_symbol
73 PARAMS ((const struct elf_backend_data *, struct elf_link_hash_entry *,
74 struct elf_link_hash_entry *));
75 static int elf32_sparc_tls_transition
76 PARAMS ((struct bfd_link_info *, bfd *, int, int));
77
78 static bfd_boolean elf32_sparc_mkobject
79 PARAMS ((bfd *));
80 static bfd_boolean elf32_sparc_object_p
81 PARAMS ((bfd *));
82 static void elf32_sparc_final_write_processing
83 PARAMS ((bfd *, bfd_boolean));
84 static enum elf_reloc_type_class elf32_sparc_reloc_type_class
85 PARAMS ((const Elf_Internal_Rela *));
86 static asection * elf32_sparc_gc_mark_hook
87 PARAMS ((asection *, struct bfd_link_info *, Elf_Internal_Rela *,
88 struct elf_link_hash_entry *, Elf_Internal_Sym *));
89 static bfd_boolean elf32_sparc_gc_sweep_hook
90 PARAMS ((bfd *, struct bfd_link_info *, asection *,
91 const Elf_Internal_Rela *));
92 \f
93 /* The relocation "howto" table. */
94
95 static bfd_reloc_status_type sparc_elf_notsupported_reloc
96 PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **));
97 static bfd_reloc_status_type sparc_elf_wdisp16_reloc
98 PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **));
99 static bfd_reloc_status_type sparc_elf_hix22_reloc
100 PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **));
101 static bfd_reloc_status_type sparc_elf_lox10_reloc
102 PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **));
103
104 reloc_howto_type _bfd_sparc_elf_howto_table[] =
105 {
106 HOWTO(R_SPARC_NONE, 0,0, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_NONE", FALSE,0,0x00000000,TRUE),
107 HOWTO(R_SPARC_8, 0,0, 8,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_8", FALSE,0,0x000000ff,TRUE),
108 HOWTO(R_SPARC_16, 0,1,16,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_16", FALSE,0,0x0000ffff,TRUE),
109 HOWTO(R_SPARC_32, 0,2,32,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_32", FALSE,0,0xffffffff,TRUE),
110 HOWTO(R_SPARC_DISP8, 0,0, 8,TRUE, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_DISP8", FALSE,0,0x000000ff,TRUE),
111 HOWTO(R_SPARC_DISP16, 0,1,16,TRUE, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_DISP16", FALSE,0,0x0000ffff,TRUE),
112 HOWTO(R_SPARC_DISP32, 0,2,32,TRUE, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_DISP32", FALSE,0,0xffffffff,TRUE),
113 HOWTO(R_SPARC_WDISP30, 2,2,30,TRUE, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_WDISP30", FALSE,0,0x3fffffff,TRUE),
114 HOWTO(R_SPARC_WDISP22, 2,2,22,TRUE, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_WDISP22", FALSE,0,0x003fffff,TRUE),
115 HOWTO(R_SPARC_HI22, 10,2,22,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_HI22", FALSE,0,0x003fffff,TRUE),
116 HOWTO(R_SPARC_22, 0,2,22,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_22", FALSE,0,0x003fffff,TRUE),
117 HOWTO(R_SPARC_13, 0,2,13,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_13", FALSE,0,0x00001fff,TRUE),
118 HOWTO(R_SPARC_LO10, 0,2,10,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_LO10", FALSE,0,0x000003ff,TRUE),
119 HOWTO(R_SPARC_GOT10, 0,2,10,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_GOT10", FALSE,0,0x000003ff,TRUE),
120 HOWTO(R_SPARC_GOT13, 0,2,13,FALSE,0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_GOT13", FALSE,0,0x00001fff,TRUE),
121 HOWTO(R_SPARC_GOT22, 10,2,22,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_GOT22", FALSE,0,0x003fffff,TRUE),
122 HOWTO(R_SPARC_PC10, 0,2,10,TRUE, 0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_PC10", FALSE,0,0x000003ff,TRUE),
123 HOWTO(R_SPARC_PC22, 10,2,22,TRUE, 0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_PC22", FALSE,0,0x003fffff,TRUE),
124 HOWTO(R_SPARC_WPLT30, 2,2,30,TRUE, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_WPLT30", FALSE,0,0x3fffffff,TRUE),
125 HOWTO(R_SPARC_COPY, 0,0,00,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_COPY", FALSE,0,0x00000000,TRUE),
126 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),
127 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),
128 HOWTO(R_SPARC_RELATIVE, 0,0,00,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_RELATIVE",FALSE,0,0x00000000,TRUE),
129 HOWTO(R_SPARC_UA32, 0,2,32,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_UA32", FALSE,0,0xffffffff,TRUE),
130 HOWTO(R_SPARC_PLT32, 0,0,00,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_PLT32", FALSE,0,0xffffffff,TRUE),
131 HOWTO(R_SPARC_HIPLT22, 0,0,00,FALSE,0,complain_overflow_dont, sparc_elf_notsupported_reloc, "R_SPARC_HIPLT22", FALSE,0,0x00000000,TRUE),
132 HOWTO(R_SPARC_LOPLT10, 0,0,00,FALSE,0,complain_overflow_dont, sparc_elf_notsupported_reloc, "R_SPARC_LOPLT10", FALSE,0,0x00000000,TRUE),
133 HOWTO(R_SPARC_PCPLT32, 0,0,00,FALSE,0,complain_overflow_dont, sparc_elf_notsupported_reloc, "R_SPARC_PCPLT32", FALSE,0,0x00000000,TRUE),
134 HOWTO(R_SPARC_PCPLT22, 0,0,00,FALSE,0,complain_overflow_dont, sparc_elf_notsupported_reloc, "R_SPARC_PCPLT22", FALSE,0,0x00000000,TRUE),
135 HOWTO(R_SPARC_PCPLT10, 0,0,00,FALSE,0,complain_overflow_dont, sparc_elf_notsupported_reloc, "R_SPARC_PCPLT10", FALSE,0,0x00000000,TRUE),
136 HOWTO(R_SPARC_10, 0,2,10,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_10", FALSE,0,0x000003ff,TRUE),
137 HOWTO(R_SPARC_11, 0,2,11,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_11", FALSE,0,0x000007ff,TRUE),
138 /* These are for sparc64 in a 64 bit environment.
139 Values need to be here because the table is indexed by reloc number. */
140 HOWTO(R_SPARC_64, 0,0,00,FALSE,0,complain_overflow_dont, sparc_elf_notsupported_reloc, "R_SPARC_64", FALSE,0,0x00000000,TRUE),
141 HOWTO(R_SPARC_OLO10, 0,0,00,FALSE,0,complain_overflow_dont, sparc_elf_notsupported_reloc, "R_SPARC_OLO10", FALSE,0,0x00000000,TRUE),
142 HOWTO(R_SPARC_HH22, 0,0,00,FALSE,0,complain_overflow_dont, sparc_elf_notsupported_reloc, "R_SPARC_HH22", FALSE,0,0x00000000,TRUE),
143 HOWTO(R_SPARC_HM10, 0,0,00,FALSE,0,complain_overflow_dont, sparc_elf_notsupported_reloc, "R_SPARC_HM10", FALSE,0,0x00000000,TRUE),
144 HOWTO(R_SPARC_LM22, 0,0,00,FALSE,0,complain_overflow_dont, sparc_elf_notsupported_reloc, "R_SPARC_LM22", FALSE,0,0x00000000,TRUE),
145 HOWTO(R_SPARC_PC_HH22, 0,0,00,FALSE,0,complain_overflow_dont, sparc_elf_notsupported_reloc, "R_SPARC_PC_HH22", FALSE,0,0x00000000,TRUE),
146 HOWTO(R_SPARC_PC_HM10, 0,0,00,FALSE,0,complain_overflow_dont, sparc_elf_notsupported_reloc, "R_SPARC_PC_HM10", FALSE,0,0x00000000,TRUE),
147 HOWTO(R_SPARC_PC_LM22, 0,0,00,FALSE,0,complain_overflow_dont, sparc_elf_notsupported_reloc, "R_SPARC_PC_LM22", FALSE,0,0x00000000,TRUE),
148 /* End sparc64 in 64 bit environment values.
149 The following are for sparc64 in a 32 bit environment. */
150 HOWTO(R_SPARC_WDISP16, 2,2,16,TRUE, 0,complain_overflow_signed, sparc_elf_wdisp16_reloc,"R_SPARC_WDISP16", FALSE,0,0x00000000,TRUE),
151 HOWTO(R_SPARC_WDISP19, 2,2,19,TRUE, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_WDISP19", FALSE,0,0x0007ffff,TRUE),
152 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),
153 HOWTO(R_SPARC_7, 0,2, 7,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_7", FALSE,0,0x0000007f,TRUE),
154 HOWTO(R_SPARC_5, 0,2, 5,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_5", FALSE,0,0x0000001f,TRUE),
155 HOWTO(R_SPARC_6, 0,2, 6,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_6", FALSE,0,0x0000003f,TRUE),
156 HOWTO(R_SPARC_NONE, 0,0, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_NONE", FALSE,0,0x00000000,TRUE),
157 HOWTO(R_SPARC_NONE, 0,0, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_NONE", FALSE,0,0x00000000,TRUE),
158 HOWTO(R_SPARC_NONE, 0,0, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_NONE", FALSE,0,0x00000000,TRUE),
159 HOWTO(R_SPARC_NONE, 0,0, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_NONE", FALSE,0,0x00000000,TRUE),
160 HOWTO(R_SPARC_NONE, 0,0, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_NONE", FALSE,0,0x00000000,TRUE),
161 HOWTO(R_SPARC_NONE, 0,0, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_NONE", FALSE,0,0x00000000,TRUE),
162 HOWTO(R_SPARC_NONE, 0,0, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_NONE", FALSE,0,0x00000000,TRUE),
163 HOWTO(R_SPARC_NONE, 0,0, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_NONE", FALSE,0,0x00000000,TRUE),
164 HOWTO(R_SPARC_UA64, 0,0, 0,FALSE,0,complain_overflow_dont, sparc_elf_notsupported_reloc, "R_SPARC_UA64", FALSE,0,0x00000000,TRUE),
165 HOWTO(R_SPARC_UA16, 0,1,16,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_UA16", FALSE,0,0x0000ffff,TRUE),
166 HOWTO(R_SPARC_TLS_GD_HI22,10,2,22,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_GD_HI22",FALSE,0,0x003fffff,TRUE),
167 HOWTO(R_SPARC_TLS_GD_LO10,0,2,10,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_GD_LO10",FALSE,0,0x000003ff,TRUE),
168 HOWTO(R_SPARC_TLS_GD_ADD,0,0, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_GD_ADD",FALSE,0,0x00000000,TRUE),
169 HOWTO(R_SPARC_TLS_GD_CALL,2,2,30,TRUE,0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_TLS_GD_CALL",FALSE,0,0x3fffffff,TRUE),
170 HOWTO(R_SPARC_TLS_LDM_HI22,10,2,22,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_LDM_HI22",FALSE,0,0x003fffff,TRUE),
171 HOWTO(R_SPARC_TLS_LDM_LO10,0,2,10,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_LDM_LO10",FALSE,0,0x000003ff,TRUE),
172 HOWTO(R_SPARC_TLS_LDM_ADD,0,0, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_LDM_ADD",FALSE,0,0x00000000,TRUE),
173 HOWTO(R_SPARC_TLS_LDM_CALL,2,2,30,TRUE,0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_TLS_LDM_CALL",FALSE,0,0x3fffffff,TRUE),
174 HOWTO(R_SPARC_TLS_LDO_HIX22,0,2,0,FALSE,0,complain_overflow_bitfield,sparc_elf_hix22_reloc,"R_SPARC_TLS_LDO_HIX22",FALSE,0,0x003fffff, FALSE),
175 HOWTO(R_SPARC_TLS_LDO_LOX10,0,2,0,FALSE,0,complain_overflow_dont, sparc_elf_lox10_reloc, "R_SPARC_TLS_LDO_LOX10",FALSE,0,0x000003ff, FALSE),
176 HOWTO(R_SPARC_TLS_LDO_ADD,0,0, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_LDO_ADD",FALSE,0,0x00000000,TRUE),
177 HOWTO(R_SPARC_TLS_IE_HI22,10,2,22,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_IE_HI22",FALSE,0,0x003fffff,TRUE),
178 HOWTO(R_SPARC_TLS_IE_LO10,0,2,10,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_IE_LO10",FALSE,0,0x000003ff,TRUE),
179 HOWTO(R_SPARC_TLS_IE_LD,0,0, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_IE_LD",FALSE,0,0x00000000,TRUE),
180 HOWTO(R_SPARC_TLS_IE_LDX,0,0, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_IE_LDX",FALSE,0,0x00000000,TRUE),
181 HOWTO(R_SPARC_TLS_IE_ADD,0,0, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_IE_ADD",FALSE,0,0x00000000,TRUE),
182 HOWTO(R_SPARC_TLS_LE_HIX22,0,2,0,FALSE,0,complain_overflow_bitfield,sparc_elf_hix22_reloc, "R_SPARC_TLS_LE_HIX22",FALSE,0,0x003fffff, FALSE),
183 HOWTO(R_SPARC_TLS_LE_LOX10,0,2,0,FALSE,0,complain_overflow_dont, sparc_elf_lox10_reloc, "R_SPARC_TLS_LE_LOX10",FALSE,0,0x000003ff, FALSE),
184 HOWTO(R_SPARC_TLS_DTPMOD32,0,0, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_DTPMOD32",FALSE,0,0x00000000,TRUE),
185 HOWTO(R_SPARC_TLS_DTPMOD64,0,0, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_DTPMOD64",FALSE,0,0x00000000,TRUE),
186 HOWTO(R_SPARC_TLS_DTPOFF32,0,2,32,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc,"R_SPARC_TLS_DTPOFF32",FALSE,0,0xffffffff,TRUE),
187 HOWTO(R_SPARC_TLS_DTPOFF64,0,0, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_DTPOFF64",FALSE,0,0x00000000,TRUE),
188 HOWTO(R_SPARC_TLS_TPOFF32,0,0, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_TPOFF32",FALSE,0,0x00000000,TRUE),
189 HOWTO(R_SPARC_TLS_TPOFF64,0,0, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_TPOFF64",FALSE,0,0x00000000,TRUE)
190 };
191 static reloc_howto_type elf32_sparc_vtinherit_howto =
192 HOWTO (R_SPARC_GNU_VTINHERIT, 0,2,0,FALSE,0,complain_overflow_dont, NULL, "R_SPARC_GNU_VTINHERIT", FALSE,0, 0, FALSE);
193 static reloc_howto_type elf32_sparc_vtentry_howto =
194 HOWTO (R_SPARC_GNU_VTENTRY, 0,2,0,FALSE,0,complain_overflow_dont, _bfd_elf_rel_vtable_reloc_fn,"R_SPARC_GNU_VTENTRY", FALSE,0,0, FALSE);
195 static reloc_howto_type elf32_sparc_rev32_howto =
196 HOWTO(R_SPARC_REV32, 0,2,32,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_REV32", FALSE,0,0xffffffff,TRUE);
197
198 struct elf_reloc_map {
199 bfd_reloc_code_real_type bfd_reloc_val;
200 unsigned char elf_reloc_val;
201 };
202
203 static const struct elf_reloc_map sparc_reloc_map[] =
204 {
205 { BFD_RELOC_NONE, R_SPARC_NONE, },
206 { BFD_RELOC_16, R_SPARC_16, },
207 { BFD_RELOC_16_PCREL, R_SPARC_DISP16 },
208 { BFD_RELOC_8, R_SPARC_8 },
209 { BFD_RELOC_8_PCREL, R_SPARC_DISP8 },
210 { BFD_RELOC_CTOR, R_SPARC_32 },
211 { BFD_RELOC_32, R_SPARC_32 },
212 { BFD_RELOC_32_PCREL, R_SPARC_DISP32 },
213 { BFD_RELOC_HI22, R_SPARC_HI22 },
214 { BFD_RELOC_LO10, R_SPARC_LO10, },
215 { BFD_RELOC_32_PCREL_S2, R_SPARC_WDISP30 },
216 { BFD_RELOC_SPARC_PLT32, R_SPARC_PLT32 },
217 { BFD_RELOC_SPARC22, R_SPARC_22 },
218 { BFD_RELOC_SPARC13, R_SPARC_13 },
219 { BFD_RELOC_SPARC_GOT10, R_SPARC_GOT10 },
220 { BFD_RELOC_SPARC_GOT13, R_SPARC_GOT13 },
221 { BFD_RELOC_SPARC_GOT22, R_SPARC_GOT22 },
222 { BFD_RELOC_SPARC_PC10, R_SPARC_PC10 },
223 { BFD_RELOC_SPARC_PC22, R_SPARC_PC22 },
224 { BFD_RELOC_SPARC_WPLT30, R_SPARC_WPLT30 },
225 { BFD_RELOC_SPARC_COPY, R_SPARC_COPY },
226 { BFD_RELOC_SPARC_GLOB_DAT, R_SPARC_GLOB_DAT },
227 { BFD_RELOC_SPARC_JMP_SLOT, R_SPARC_JMP_SLOT },
228 { BFD_RELOC_SPARC_RELATIVE, R_SPARC_RELATIVE },
229 { BFD_RELOC_SPARC_WDISP22, R_SPARC_WDISP22 },
230 { BFD_RELOC_SPARC_UA16, R_SPARC_UA16 },
231 { BFD_RELOC_SPARC_UA32, R_SPARC_UA32 },
232 { BFD_RELOC_SPARC_UA64, R_SPARC_UA64 },
233 { BFD_RELOC_SPARC_10, R_SPARC_10 },
234 { BFD_RELOC_SPARC_11, R_SPARC_11 },
235 { BFD_RELOC_SPARC_64, R_SPARC_64 },
236 { BFD_RELOC_SPARC_OLO10, R_SPARC_OLO10 },
237 { BFD_RELOC_SPARC_HH22, R_SPARC_HH22 },
238 { BFD_RELOC_SPARC_HM10, R_SPARC_HM10 },
239 { BFD_RELOC_SPARC_LM22, R_SPARC_LM22 },
240 { BFD_RELOC_SPARC_PC_HH22, R_SPARC_PC_HH22 },
241 { BFD_RELOC_SPARC_PC_HM10, R_SPARC_PC_HM10 },
242 { BFD_RELOC_SPARC_PC_LM22, R_SPARC_PC_LM22 },
243 { BFD_RELOC_SPARC_WDISP16, R_SPARC_WDISP16 },
244 { BFD_RELOC_SPARC_WDISP19, R_SPARC_WDISP19 },
245 { BFD_RELOC_SPARC_7, R_SPARC_7 },
246 { BFD_RELOC_SPARC_5, R_SPARC_5 },
247 { BFD_RELOC_SPARC_6, R_SPARC_6 },
248 { BFD_RELOC_SPARC_TLS_GD_HI22, R_SPARC_TLS_GD_HI22 },
249 { BFD_RELOC_SPARC_TLS_GD_LO10, R_SPARC_TLS_GD_LO10 },
250 { BFD_RELOC_SPARC_TLS_GD_ADD, R_SPARC_TLS_GD_ADD },
251 { BFD_RELOC_SPARC_TLS_GD_CALL, R_SPARC_TLS_GD_CALL },
252 { BFD_RELOC_SPARC_TLS_LDM_HI22, R_SPARC_TLS_LDM_HI22 },
253 { BFD_RELOC_SPARC_TLS_LDM_LO10, R_SPARC_TLS_LDM_LO10 },
254 { BFD_RELOC_SPARC_TLS_LDM_ADD, R_SPARC_TLS_LDM_ADD },
255 { BFD_RELOC_SPARC_TLS_LDM_CALL, R_SPARC_TLS_LDM_CALL },
256 { BFD_RELOC_SPARC_TLS_LDO_HIX22, R_SPARC_TLS_LDO_HIX22 },
257 { BFD_RELOC_SPARC_TLS_LDO_LOX10, R_SPARC_TLS_LDO_LOX10 },
258 { BFD_RELOC_SPARC_TLS_LDO_ADD, R_SPARC_TLS_LDO_ADD },
259 { BFD_RELOC_SPARC_TLS_IE_HI22, R_SPARC_TLS_IE_HI22 },
260 { BFD_RELOC_SPARC_TLS_IE_LO10, R_SPARC_TLS_IE_LO10 },
261 { BFD_RELOC_SPARC_TLS_IE_LD, R_SPARC_TLS_IE_LD },
262 { BFD_RELOC_SPARC_TLS_IE_LDX, R_SPARC_TLS_IE_LDX },
263 { BFD_RELOC_SPARC_TLS_IE_ADD, R_SPARC_TLS_IE_ADD },
264 { BFD_RELOC_SPARC_TLS_LE_HIX22, R_SPARC_TLS_LE_HIX22 },
265 { BFD_RELOC_SPARC_TLS_LE_LOX10, R_SPARC_TLS_LE_LOX10 },
266 { BFD_RELOC_SPARC_TLS_DTPMOD32, R_SPARC_TLS_DTPMOD32 },
267 { BFD_RELOC_SPARC_TLS_DTPMOD64, R_SPARC_TLS_DTPMOD64 },
268 { BFD_RELOC_SPARC_TLS_DTPOFF32, R_SPARC_TLS_DTPOFF32 },
269 { BFD_RELOC_SPARC_TLS_DTPOFF64, R_SPARC_TLS_DTPOFF64 },
270 { BFD_RELOC_SPARC_TLS_TPOFF32, R_SPARC_TLS_TPOFF32 },
271 { BFD_RELOC_SPARC_TLS_TPOFF64, R_SPARC_TLS_TPOFF64 },
272 { BFD_RELOC_VTABLE_INHERIT, R_SPARC_GNU_VTINHERIT },
273 { BFD_RELOC_VTABLE_ENTRY, R_SPARC_GNU_VTENTRY },
274 { BFD_RELOC_SPARC_REV32, R_SPARC_REV32 }
275 };
276
277 static reloc_howto_type *
278 elf32_sparc_reloc_type_lookup (abfd, code)
279 bfd *abfd ATTRIBUTE_UNUSED;
280 bfd_reloc_code_real_type code;
281 {
282 unsigned int i;
283
284 switch (code)
285 {
286 case BFD_RELOC_VTABLE_INHERIT:
287 return &elf32_sparc_vtinherit_howto;
288
289 case BFD_RELOC_VTABLE_ENTRY:
290 return &elf32_sparc_vtentry_howto;
291
292 case BFD_RELOC_SPARC_REV32:
293 return &elf32_sparc_rev32_howto;
294
295 default:
296 for (i = 0;
297 i < sizeof (sparc_reloc_map) / sizeof (struct elf_reloc_map);
298 i++)
299 {
300 if (sparc_reloc_map[i].bfd_reloc_val == code)
301 return (_bfd_sparc_elf_howto_table
302 + (int) sparc_reloc_map[i].elf_reloc_val);
303 }
304 }
305 bfd_set_error (bfd_error_bad_value);
306 return NULL;
307 }
308
309 /* We need to use ELF32_R_TYPE so we have our own copy of this function,
310 and elf64-sparc.c has its own copy. */
311
312 static void
313 elf32_sparc_info_to_howto (abfd, cache_ptr, dst)
314 bfd *abfd ATTRIBUTE_UNUSED;
315 arelent *cache_ptr;
316 Elf_Internal_Rela *dst;
317 {
318 switch (ELF32_R_TYPE(dst->r_info))
319 {
320 case R_SPARC_GNU_VTINHERIT:
321 cache_ptr->howto = &elf32_sparc_vtinherit_howto;
322 break;
323
324 case R_SPARC_GNU_VTENTRY:
325 cache_ptr->howto = &elf32_sparc_vtentry_howto;
326 break;
327
328 case R_SPARC_REV32:
329 cache_ptr->howto = &elf32_sparc_rev32_howto;
330 break;
331
332 default:
333 BFD_ASSERT (ELF32_R_TYPE(dst->r_info) < (unsigned int) R_SPARC_max_std);
334 cache_ptr->howto = &_bfd_sparc_elf_howto_table[ELF32_R_TYPE(dst->r_info)];
335 }
336 }
337 \f
338 /* For unsupported relocs. */
339
340 static bfd_reloc_status_type
341 sparc_elf_notsupported_reloc (abfd,
342 reloc_entry,
343 symbol,
344 data,
345 input_section,
346 output_bfd,
347 error_message)
348 bfd *abfd ATTRIBUTE_UNUSED;
349 arelent *reloc_entry ATTRIBUTE_UNUSED;
350 asymbol *symbol ATTRIBUTE_UNUSED;
351 PTR data ATTRIBUTE_UNUSED;
352 asection *input_section ATTRIBUTE_UNUSED;
353 bfd *output_bfd ATTRIBUTE_UNUSED;
354 char **error_message ATTRIBUTE_UNUSED;
355 {
356 return bfd_reloc_notsupported;
357 }
358
359 /* Handle the WDISP16 reloc. */
360
361 static bfd_reloc_status_type
362 sparc_elf_wdisp16_reloc (abfd,
363 reloc_entry,
364 symbol,
365 data,
366 input_section,
367 output_bfd,
368 error_message)
369 bfd *abfd;
370 arelent *reloc_entry;
371 asymbol *symbol;
372 PTR data;
373 asection *input_section;
374 bfd *output_bfd;
375 char **error_message ATTRIBUTE_UNUSED;
376 {
377 bfd_vma relocation;
378 bfd_vma x;
379
380 if (output_bfd != (bfd *) NULL
381 && (symbol->flags & BSF_SECTION_SYM) == 0
382 && (! reloc_entry->howto->partial_inplace
383 || reloc_entry->addend == 0))
384 {
385 reloc_entry->address += input_section->output_offset;
386 return bfd_reloc_ok;
387 }
388
389 if (output_bfd != NULL)
390 return bfd_reloc_continue;
391
392 if (reloc_entry->address > bfd_get_section_limit (abfd, input_section))
393 return bfd_reloc_outofrange;
394
395 relocation = (symbol->value
396 + symbol->section->output_section->vma
397 + symbol->section->output_offset);
398 relocation += reloc_entry->addend;
399 relocation -= (input_section->output_section->vma
400 + input_section->output_offset);
401 relocation -= reloc_entry->address;
402
403 x = bfd_get_32 (abfd, (bfd_byte *) data + reloc_entry->address);
404 x |= ((((relocation >> 2) & 0xc000) << 6)
405 | ((relocation >> 2) & 0x3fff));
406 bfd_put_32 (abfd, x, (bfd_byte *) data + reloc_entry->address);
407
408 if ((bfd_signed_vma) relocation < - 0x40000
409 || (bfd_signed_vma) relocation > 0x3ffff)
410 return bfd_reloc_overflow;
411 else
412 return bfd_reloc_ok;
413 }
414
415 /* Handle the HIX22 reloc. */
416
417 static bfd_reloc_status_type
418 sparc_elf_hix22_reloc (abfd,
419 reloc_entry,
420 symbol,
421 data,
422 input_section,
423 output_bfd,
424 error_message)
425 bfd *abfd;
426 arelent *reloc_entry;
427 asymbol *symbol;
428 PTR data;
429 asection *input_section;
430 bfd *output_bfd;
431 char **error_message ATTRIBUTE_UNUSED;
432 {
433 bfd_vma relocation;
434 bfd_vma insn;
435
436 if (output_bfd != (bfd *) NULL
437 && (symbol->flags & BSF_SECTION_SYM) == 0)
438 {
439 reloc_entry->address += input_section->output_offset;
440 return bfd_reloc_ok;
441 }
442
443 if (output_bfd != NULL)
444 return bfd_reloc_continue;
445
446 if (reloc_entry->address > bfd_get_section_limit (abfd, input_section))
447 return bfd_reloc_outofrange;
448
449 relocation = (symbol->value
450 + symbol->section->output_section->vma
451 + symbol->section->output_offset);
452 relocation += reloc_entry->addend;
453 insn = bfd_get_32 (abfd, (bfd_byte *) data + reloc_entry->address);
454
455 insn = (insn &~ (bfd_vma) 0x3fffff) | (((~relocation) >> 10) & 0x3fffff);
456 bfd_put_32 (abfd, insn, (bfd_byte *) data + reloc_entry->address);
457
458 return bfd_reloc_ok;
459 }
460
461 /* Handle the LOX10 reloc. */
462
463 static bfd_reloc_status_type
464 sparc_elf_lox10_reloc (abfd,
465 reloc_entry,
466 symbol,
467 data,
468 input_section,
469 output_bfd,
470 error_message)
471 bfd *abfd;
472 arelent *reloc_entry;
473 asymbol *symbol;
474 PTR data;
475 asection *input_section;
476 bfd *output_bfd;
477 char **error_message ATTRIBUTE_UNUSED;
478 {
479 bfd_vma relocation;
480 bfd_vma insn;
481
482 if (output_bfd != (bfd *) NULL
483 && (symbol->flags & BSF_SECTION_SYM) == 0)
484 {
485 reloc_entry->address += input_section->output_offset;
486 return bfd_reloc_ok;
487 }
488
489 if (output_bfd != NULL)
490 return bfd_reloc_continue;
491
492 if (reloc_entry->address > bfd_get_section_limit (abfd, input_section))
493 return bfd_reloc_outofrange;
494
495 relocation = (symbol->value
496 + symbol->section->output_section->vma
497 + symbol->section->output_offset);
498 relocation += reloc_entry->addend;
499 insn = bfd_get_32 (abfd, (bfd_byte *) data + reloc_entry->address);
500
501 insn = (insn &~ (bfd_vma) 0x1fff) | 0x1c00 | (relocation & 0x3ff);
502 bfd_put_32 (abfd, insn, (bfd_byte *) data + reloc_entry->address);
503
504 return bfd_reloc_ok;
505 }
506 \f
507 /* Support for core dump NOTE sections. */
508
509 static bfd_boolean
510 elf32_sparc_grok_psinfo (bfd *abfd, Elf_Internal_Note *note)
511 {
512 switch (note->descsz)
513 {
514 default:
515 return FALSE;
516
517 case 260: /* Solaris prpsinfo_t. */
518 elf_tdata (abfd)->core_program
519 = _bfd_elfcore_strndup (abfd, note->descdata + 84, 16);
520 elf_tdata (abfd)->core_command
521 = _bfd_elfcore_strndup (abfd, note->descdata + 100, 80);
522 break;
523
524 case 336: /* Solaris psinfo_t. */
525 elf_tdata (abfd)->core_program
526 = _bfd_elfcore_strndup (abfd, note->descdata + 88, 16);
527 elf_tdata (abfd)->core_command
528 = _bfd_elfcore_strndup (abfd, note->descdata + 104, 80);
529 break;
530 }
531
532 return TRUE;
533 }
534
535 \f
536 /* Functions for the SPARC ELF linker. */
537
538 /* The name of the dynamic interpreter. This is put in the .interp
539 section. */
540
541 #define ELF_DYNAMIC_INTERPRETER "/usr/lib/ld.so.1"
542
543 /* The nop opcode we use. */
544
545 #define SPARC_NOP 0x01000000
546
547 /* The size in bytes of an entry in the procedure linkage table. */
548
549 #define PLT_ENTRY_SIZE 12
550
551 /* The first four entries in a procedure linkage table are reserved,
552 and the initial contents are unimportant (we zero them out).
553 Subsequent entries look like this. See the SVR4 ABI SPARC
554 supplement to see how this works. */
555
556 /* sethi %hi(.-.plt0),%g1. We fill in the address later. */
557 #define PLT_ENTRY_WORD0 0x03000000
558 /* b,a .plt0. We fill in the offset later. */
559 #define PLT_ENTRY_WORD1 0x30800000
560 /* nop. */
561 #define PLT_ENTRY_WORD2 SPARC_NOP
562
563 /* The SPARC linker needs to keep track of the number of relocs that it
564 decides to copy as dynamic relocs in check_relocs for each symbol.
565 This is so that it can later discard them if they are found to be
566 unnecessary. We store the information in a field extending the
567 regular ELF linker hash table. */
568
569 struct elf32_sparc_dyn_relocs
570 {
571 struct elf32_sparc_dyn_relocs *next;
572
573 /* The input section of the reloc. */
574 asection *sec;
575
576 /* Total number of relocs copied for the input section. */
577 bfd_size_type count;
578
579 /* Number of pc-relative relocs copied for the input section. */
580 bfd_size_type pc_count;
581 };
582
583 /* SPARC ELF linker hash entry. */
584
585 struct elf32_sparc_link_hash_entry
586 {
587 struct elf_link_hash_entry elf;
588
589 /* Track dynamic relocs copied for this symbol. */
590 struct elf32_sparc_dyn_relocs *dyn_relocs;
591
592 #define GOT_UNKNOWN 0
593 #define GOT_NORMAL 1
594 #define GOT_TLS_GD 2
595 #define GOT_TLS_IE 3
596 unsigned char tls_type;
597 };
598
599 #define elf32_sparc_hash_entry(ent) ((struct elf32_sparc_link_hash_entry *)(ent))
600
601 struct elf32_sparc_obj_tdata
602 {
603 struct elf_obj_tdata root;
604
605 /* tls_type for each local got entry. */
606 char *local_got_tls_type;
607
608 /* TRUE if TLS GD relocs has been seen for this object. */
609 bfd_boolean has_tlsgd;
610 };
611
612 #define elf32_sparc_tdata(abfd) \
613 ((struct elf32_sparc_obj_tdata *) (abfd)->tdata.any)
614
615 #define elf32_sparc_local_got_tls_type(abfd) \
616 (elf32_sparc_tdata (abfd)->local_got_tls_type)
617
618 static bfd_boolean
619 elf32_sparc_mkobject (abfd)
620 bfd *abfd;
621 {
622 bfd_size_type amt = sizeof (struct elf32_sparc_obj_tdata);
623 abfd->tdata.any = bfd_zalloc (abfd, amt);
624 if (abfd->tdata.any == NULL)
625 return FALSE;
626 return TRUE;
627 }
628
629 /* SPARC ELF linker hash table. */
630
631 struct elf32_sparc_link_hash_table
632 {
633 struct elf_link_hash_table elf;
634
635 /* Short-cuts to get to dynamic linker sections. */
636 asection *sgot;
637 asection *srelgot;
638 asection *splt;
639 asection *srelplt;
640 asection *sdynbss;
641 asection *srelbss;
642
643 union {
644 bfd_signed_vma refcount;
645 bfd_vma offset;
646 } tls_ldm_got;
647
648 /* Small local sym to section mapping cache. */
649 struct sym_sec_cache sym_sec;
650 };
651
652 /* Get the SPARC ELF linker hash table from a link_info structure. */
653
654 #define elf32_sparc_hash_table(p) \
655 ((struct elf32_sparc_link_hash_table *) ((p)->hash))
656
657 /* Create an entry in an i386 ELF linker hash table. */
658
659 static struct bfd_hash_entry *
660 link_hash_newfunc (entry, table, string)
661 struct bfd_hash_entry *entry;
662 struct bfd_hash_table *table;
663 const char *string;
664 {
665 /* Allocate the structure if it has not already been allocated by a
666 subclass. */
667 if (entry == NULL)
668 {
669 entry = bfd_hash_allocate (table,
670 sizeof (struct elf32_sparc_link_hash_entry));
671 if (entry == NULL)
672 return entry;
673 }
674
675 /* Call the allocation method of the superclass. */
676 entry = _bfd_elf_link_hash_newfunc (entry, table, string);
677 if (entry != NULL)
678 {
679 struct elf32_sparc_link_hash_entry *eh;
680
681 eh = (struct elf32_sparc_link_hash_entry *) entry;
682 eh->dyn_relocs = NULL;
683 eh->tls_type = GOT_UNKNOWN;
684 }
685
686 return entry;
687 }
688
689 /* Create a SPARC ELF linker hash table. */
690
691 static struct bfd_link_hash_table *
692 elf32_sparc_link_hash_table_create (abfd)
693 bfd *abfd;
694 {
695 struct elf32_sparc_link_hash_table *ret;
696 bfd_size_type amt = sizeof (struct elf32_sparc_link_hash_table);
697
698 ret = (struct elf32_sparc_link_hash_table *) bfd_zmalloc (amt);
699 if (ret == NULL)
700 return NULL;
701
702 if (! _bfd_elf_link_hash_table_init (&ret->elf, abfd, link_hash_newfunc))
703 {
704 free (ret);
705 return NULL;
706 }
707
708 return &ret->elf.root;
709 }
710
711 /* Create .got and .rela.got sections in DYNOBJ, and set up
712 shortcuts to them in our hash table. */
713
714 static bfd_boolean
715 create_got_section (dynobj, info)
716 bfd *dynobj;
717 struct bfd_link_info *info;
718 {
719 struct elf32_sparc_link_hash_table *htab;
720
721 if (! _bfd_elf_create_got_section (dynobj, info))
722 return FALSE;
723
724 htab = elf32_sparc_hash_table (info);
725 htab->sgot = bfd_get_section_by_name (dynobj, ".got");
726 BFD_ASSERT (htab->sgot != NULL);
727
728 htab->srelgot = bfd_make_section (dynobj, ".rela.got");
729 if (htab->srelgot == NULL
730 || ! bfd_set_section_flags (dynobj, htab->srelgot, SEC_ALLOC
731 | SEC_LOAD
732 | SEC_HAS_CONTENTS
733 | SEC_IN_MEMORY
734 | SEC_LINKER_CREATED
735 | SEC_READONLY)
736 || ! bfd_set_section_alignment (dynobj, htab->srelgot, 2))
737 return FALSE;
738 return TRUE;
739 }
740
741 /* Create .plt, .rela.plt, .got, .rela.got, .dynbss, and
742 .rela.bss sections in DYNOBJ, and set up shortcuts to them in our
743 hash table. */
744
745 static bfd_boolean
746 elf32_sparc_create_dynamic_sections (dynobj, info)
747 bfd *dynobj;
748 struct bfd_link_info *info;
749 {
750 struct elf32_sparc_link_hash_table *htab;
751
752 htab = elf32_sparc_hash_table (info);
753 if (!htab->sgot && !create_got_section (dynobj, info))
754 return FALSE;
755
756 if (!_bfd_elf_create_dynamic_sections (dynobj, info))
757 return FALSE;
758
759 htab->splt = bfd_get_section_by_name (dynobj, ".plt");
760 htab->srelplt = bfd_get_section_by_name (dynobj, ".rela.plt");
761 htab->sdynbss = bfd_get_section_by_name (dynobj, ".dynbss");
762 if (!info->shared)
763 htab->srelbss = bfd_get_section_by_name (dynobj, ".rela.bss");
764
765 if (!htab->splt || !htab->srelplt || !htab->sdynbss
766 || (!info->shared && !htab->srelbss))
767 abort ();
768
769 return TRUE;
770 }
771
772 /* Copy the extra info we tack onto an elf_link_hash_entry. */
773
774 static void
775 elf32_sparc_copy_indirect_symbol (bed, dir, ind)
776 const struct elf_backend_data *bed;
777 struct elf_link_hash_entry *dir, *ind;
778 {
779 struct elf32_sparc_link_hash_entry *edir, *eind;
780
781 edir = (struct elf32_sparc_link_hash_entry *) dir;
782 eind = (struct elf32_sparc_link_hash_entry *) ind;
783
784 if (eind->dyn_relocs != NULL)
785 {
786 if (edir->dyn_relocs != NULL)
787 {
788 struct elf32_sparc_dyn_relocs **pp;
789 struct elf32_sparc_dyn_relocs *p;
790
791 if (ind->root.type == bfd_link_hash_indirect)
792 abort ();
793
794 /* Add reloc counts against the weak sym to the strong sym
795 list. Merge any entries against the same section. */
796 for (pp = &eind->dyn_relocs; (p = *pp) != NULL; )
797 {
798 struct elf32_sparc_dyn_relocs *q;
799
800 for (q = edir->dyn_relocs; q != NULL; q = q->next)
801 if (q->sec == p->sec)
802 {
803 q->pc_count += p->pc_count;
804 q->count += p->count;
805 *pp = p->next;
806 break;
807 }
808 if (q == NULL)
809 pp = &p->next;
810 }
811 *pp = edir->dyn_relocs;
812 }
813
814 edir->dyn_relocs = eind->dyn_relocs;
815 eind->dyn_relocs = NULL;
816 }
817
818 if (ind->root.type == bfd_link_hash_indirect
819 && dir->got.refcount <= 0)
820 {
821 edir->tls_type = eind->tls_type;
822 eind->tls_type = GOT_UNKNOWN;
823 }
824 _bfd_elf_link_hash_copy_indirect (bed, dir, ind);
825 }
826
827 static int
828 elf32_sparc_tls_transition (info, abfd, r_type, is_local)
829 struct bfd_link_info *info;
830 bfd *abfd;
831 int r_type;
832 int is_local;
833 {
834 if (r_type == R_SPARC_TLS_GD_HI22
835 && ! elf32_sparc_tdata (abfd)->has_tlsgd)
836 r_type = R_SPARC_REV32;
837
838 if (info->shared)
839 return r_type;
840
841 switch (r_type)
842 {
843 case R_SPARC_TLS_GD_HI22:
844 if (is_local)
845 return R_SPARC_TLS_LE_HIX22;
846 return R_SPARC_TLS_IE_HI22;
847 case R_SPARC_TLS_GD_LO10:
848 if (is_local)
849 return R_SPARC_TLS_LE_LOX10;
850 return R_SPARC_TLS_IE_LO10;
851 case R_SPARC_TLS_IE_HI22:
852 if (is_local)
853 return R_SPARC_TLS_LE_HIX22;
854 return r_type;
855 case R_SPARC_TLS_IE_LO10:
856 if (is_local)
857 return R_SPARC_TLS_LE_LOX10;
858 return r_type;
859 case R_SPARC_TLS_LDM_HI22:
860 return R_SPARC_TLS_LE_HIX22;
861 case R_SPARC_TLS_LDM_LO10:
862 return R_SPARC_TLS_LE_LOX10;
863 }
864
865 return r_type;
866 }
867
868 /* Look through the relocs for a section during the first phase, and
869 allocate space in the global offset table or procedure linkage
870 table. */
871
872 static bfd_boolean
873 elf32_sparc_check_relocs (abfd, info, sec, relocs)
874 bfd *abfd;
875 struct bfd_link_info *info;
876 asection *sec;
877 const Elf_Internal_Rela *relocs;
878 {
879 struct elf32_sparc_link_hash_table *htab;
880 Elf_Internal_Shdr *symtab_hdr;
881 struct elf_link_hash_entry **sym_hashes;
882 bfd_vma *local_got_offsets;
883 const Elf_Internal_Rela *rel;
884 const Elf_Internal_Rela *rel_end;
885 asection *sreloc;
886 bfd_boolean checked_tlsgd = FALSE;
887
888 if (info->relocatable)
889 return TRUE;
890
891 htab = elf32_sparc_hash_table (info);
892 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
893 sym_hashes = elf_sym_hashes (abfd);
894 local_got_offsets = elf_local_got_offsets (abfd);
895
896 sreloc = NULL;
897
898 rel_end = relocs + sec->reloc_count;
899 for (rel = relocs; rel < rel_end; rel++)
900 {
901 unsigned int r_type;
902 unsigned long r_symndx;
903 struct elf_link_hash_entry *h;
904
905 r_symndx = ELF32_R_SYM (rel->r_info);
906 r_type = ELF32_R_TYPE (rel->r_info);
907
908 if (r_symndx >= NUM_SHDR_ENTRIES (symtab_hdr))
909 {
910 (*_bfd_error_handler) (_("%B: bad symbol index: %d"),
911 abfd, r_symndx);
912 return FALSE;
913 }
914
915 if (r_symndx < symtab_hdr->sh_info)
916 h = NULL;
917 else
918 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
919
920 /* Compatibility with old R_SPARC_REV32 reloc conflicting
921 with R_SPARC_TLS_GD_HI22. */
922 if (! checked_tlsgd)
923 switch (r_type)
924 {
925 case R_SPARC_TLS_GD_HI22:
926 {
927 const Elf_Internal_Rela *relt;
928
929 for (relt = rel + 1; relt < rel_end; relt++)
930 if (ELF32_R_TYPE (relt->r_info) == R_SPARC_TLS_GD_LO10
931 || ELF32_R_TYPE (relt->r_info) == R_SPARC_TLS_GD_ADD
932 || ELF32_R_TYPE (relt->r_info) == R_SPARC_TLS_GD_CALL)
933 break;
934 checked_tlsgd = TRUE;
935 elf32_sparc_tdata (abfd)->has_tlsgd = relt < rel_end;
936 }
937 break;
938 case R_SPARC_TLS_GD_LO10:
939 case R_SPARC_TLS_GD_ADD:
940 case R_SPARC_TLS_GD_CALL:
941 checked_tlsgd = TRUE;
942 elf32_sparc_tdata (abfd)->has_tlsgd = TRUE;
943 break;
944 }
945
946 r_type = elf32_sparc_tls_transition (info, abfd, r_type, h == NULL);
947 switch (r_type)
948 {
949 case R_SPARC_TLS_LDM_HI22:
950 case R_SPARC_TLS_LDM_LO10:
951 htab->tls_ldm_got.refcount += 1;
952 break;
953
954 case R_SPARC_TLS_LE_HIX22:
955 case R_SPARC_TLS_LE_LOX10:
956 if (info->shared)
957 goto r_sparc_plt32;
958 break;
959
960 case R_SPARC_TLS_IE_HI22:
961 case R_SPARC_TLS_IE_LO10:
962 if (info->shared)
963 info->flags |= DF_STATIC_TLS;
964 /* Fall through */
965
966 case R_SPARC_GOT10:
967 case R_SPARC_GOT13:
968 case R_SPARC_GOT22:
969 case R_SPARC_TLS_GD_HI22:
970 case R_SPARC_TLS_GD_LO10:
971 /* This symbol requires a global offset table entry. */
972 {
973 int tls_type, old_tls_type;
974
975 switch (r_type)
976 {
977 default:
978 case R_SPARC_GOT10:
979 case R_SPARC_GOT13:
980 case R_SPARC_GOT22:
981 tls_type = GOT_NORMAL;
982 break;
983 case R_SPARC_TLS_GD_HI22:
984 case R_SPARC_TLS_GD_LO10:
985 tls_type = GOT_TLS_GD;
986 break;
987 case R_SPARC_TLS_IE_HI22:
988 case R_SPARC_TLS_IE_LO10:
989 tls_type = GOT_TLS_IE;
990 break;
991 }
992
993 if (h != NULL)
994 {
995 h->got.refcount += 1;
996 old_tls_type = elf32_sparc_hash_entry(h)->tls_type;
997 }
998 else
999 {
1000 bfd_signed_vma *local_got_refcounts;
1001
1002 /* This is a global offset table entry for a local symbol. */
1003 local_got_refcounts = elf_local_got_refcounts (abfd);
1004 if (local_got_refcounts == NULL)
1005 {
1006 bfd_size_type size;
1007
1008 size = symtab_hdr->sh_info;
1009 size *= (sizeof (bfd_signed_vma) + sizeof(char));
1010 local_got_refcounts = ((bfd_signed_vma *)
1011 bfd_zalloc (abfd, size));
1012 if (local_got_refcounts == NULL)
1013 return FALSE;
1014 elf_local_got_refcounts (abfd) = local_got_refcounts;
1015 elf32_sparc_local_got_tls_type (abfd)
1016 = (char *) (local_got_refcounts + symtab_hdr->sh_info);
1017 }
1018 local_got_refcounts[r_symndx] += 1;
1019 old_tls_type = elf32_sparc_local_got_tls_type (abfd) [r_symndx];
1020 }
1021
1022 /* If a TLS symbol is accessed using IE at least once,
1023 there is no point to use dynamic model for it. */
1024 if (old_tls_type != tls_type && old_tls_type != GOT_UNKNOWN
1025 && (old_tls_type != GOT_TLS_GD
1026 || tls_type != GOT_TLS_IE))
1027 {
1028 if (old_tls_type == GOT_TLS_IE && tls_type == GOT_TLS_GD)
1029 tls_type = old_tls_type;
1030 else
1031 {
1032 (*_bfd_error_handler)
1033 (_("%B: `%s' accessed both as normal and thread local symbol"),
1034 abfd, h ? h->root.root.string : "<local>");
1035 return FALSE;
1036 }
1037 }
1038
1039 if (old_tls_type != tls_type)
1040 {
1041 if (h != NULL)
1042 elf32_sparc_hash_entry (h)->tls_type = tls_type;
1043 else
1044 elf32_sparc_local_got_tls_type (abfd) [r_symndx] = tls_type;
1045 }
1046 }
1047
1048 if (htab->sgot == NULL)
1049 {
1050 if (htab->elf.dynobj == NULL)
1051 htab->elf.dynobj = abfd;
1052 if (!create_got_section (htab->elf.dynobj, info))
1053 return FALSE;
1054 }
1055 break;
1056
1057 case R_SPARC_TLS_GD_CALL:
1058 case R_SPARC_TLS_LDM_CALL:
1059 if (info->shared)
1060 {
1061 /* These are basically R_SPARC_TLS_WPLT30 relocs against
1062 __tls_get_addr. */
1063 struct bfd_link_hash_entry *bh = NULL;
1064 if (! _bfd_generic_link_add_one_symbol (info, abfd,
1065 "__tls_get_addr", 0,
1066 bfd_und_section_ptr, 0,
1067 NULL, FALSE, FALSE,
1068 &bh))
1069 return FALSE;
1070 h = (struct elf_link_hash_entry *) bh;
1071 }
1072 else
1073 break;
1074 /* Fall through */
1075
1076 case R_SPARC_PLT32:
1077 case R_SPARC_WPLT30:
1078 /* This symbol requires a procedure linkage table entry. We
1079 actually build the entry in adjust_dynamic_symbol,
1080 because this might be a case of linking PIC code without
1081 linking in any dynamic objects, in which case we don't
1082 need to generate a procedure linkage table after all. */
1083
1084 if (h == NULL)
1085 {
1086 /* The Solaris native assembler will generate a WPLT30
1087 reloc for a local symbol if you assemble a call from
1088 one section to another when using -K pic. We treat
1089 it as WDISP30. */
1090 if (ELF32_R_TYPE (rel->r_info) == R_SPARC_PLT32)
1091 goto r_sparc_plt32;
1092 break;
1093 }
1094
1095 h->needs_plt = 1;
1096
1097 if (ELF32_R_TYPE (rel->r_info) == R_SPARC_PLT32)
1098 goto r_sparc_plt32;
1099 h->plt.refcount += 1;
1100 break;
1101
1102 case R_SPARC_PC10:
1103 case R_SPARC_PC22:
1104 if (h != NULL)
1105 h->non_got_ref = 1;
1106
1107 if (h != NULL
1108 && strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)
1109 break;
1110 /* Fall through. */
1111
1112 case R_SPARC_DISP8:
1113 case R_SPARC_DISP16:
1114 case R_SPARC_DISP32:
1115 case R_SPARC_WDISP30:
1116 case R_SPARC_WDISP22:
1117 case R_SPARC_WDISP19:
1118 case R_SPARC_WDISP16:
1119 case R_SPARC_8:
1120 case R_SPARC_16:
1121 case R_SPARC_32:
1122 case R_SPARC_HI22:
1123 case R_SPARC_22:
1124 case R_SPARC_13:
1125 case R_SPARC_LO10:
1126 case R_SPARC_UA16:
1127 case R_SPARC_UA32:
1128 if (h != NULL)
1129 h->non_got_ref = 1;
1130
1131 r_sparc_plt32:
1132 if (h != NULL && !info->shared)
1133 {
1134 /* We may need a .plt entry if the function this reloc
1135 refers to is in a shared lib. */
1136 h->plt.refcount += 1;
1137 }
1138
1139 /* If we are creating a shared library, and this is a reloc
1140 against a global symbol, or a non PC relative reloc
1141 against a local symbol, then we need to copy the reloc
1142 into the shared library. However, if we are linking with
1143 -Bsymbolic, we do not need to copy a reloc against a
1144 global symbol which is defined in an object we are
1145 including in the link (i.e., DEF_REGULAR is set). At
1146 this point we have not seen all the input files, so it is
1147 possible that DEF_REGULAR is not set now but will be set
1148 later (it is never cleared). In case of a weak definition,
1149 DEF_REGULAR may be cleared later by a strong definition in
1150 a shared library. We account for that possibility below by
1151 storing information in the relocs_copied field of the hash
1152 table entry. A similar situation occurs when creating
1153 shared libraries and symbol visibility changes render the
1154 symbol local.
1155
1156 If on the other hand, we are creating an executable, we
1157 may need to keep relocations for symbols satisfied by a
1158 dynamic library if we manage to avoid copy relocs for the
1159 symbol. */
1160 if ((info->shared
1161 && (sec->flags & SEC_ALLOC) != 0
1162 && (! _bfd_sparc_elf_howto_table[r_type].pc_relative
1163 || (h != NULL
1164 && (! info->symbolic
1165 || h->root.type == bfd_link_hash_defweak
1166 || !h->def_regular))))
1167 || (!info->shared
1168 && (sec->flags & SEC_ALLOC) != 0
1169 && h != NULL
1170 && (h->root.type == bfd_link_hash_defweak
1171 || !h->def_regular)))
1172 {
1173 struct elf32_sparc_dyn_relocs *p;
1174 struct elf32_sparc_dyn_relocs **head;
1175
1176 /* When creating a shared object, we must copy these
1177 relocs into the output file. We create a reloc
1178 section in dynobj and make room for the reloc. */
1179 if (sreloc == NULL)
1180 {
1181 const char *name;
1182 bfd *dynobj;
1183
1184 name = (bfd_elf_string_from_elf_section
1185 (abfd,
1186 elf_elfheader (abfd)->e_shstrndx,
1187 elf_section_data (sec)->rel_hdr.sh_name));
1188 if (name == NULL)
1189 return FALSE;
1190
1191 BFD_ASSERT (strncmp (name, ".rela", 5) == 0
1192 && strcmp (bfd_get_section_name (abfd, sec),
1193 name + 5) == 0);
1194
1195 if (htab->elf.dynobj == NULL)
1196 htab->elf.dynobj = abfd;
1197 dynobj = htab->elf.dynobj;
1198
1199 sreloc = bfd_get_section_by_name (dynobj, name);
1200 if (sreloc == NULL)
1201 {
1202 flagword flags;
1203
1204 sreloc = bfd_make_section (dynobj, name);
1205 flags = (SEC_HAS_CONTENTS | SEC_READONLY
1206 | SEC_IN_MEMORY | SEC_LINKER_CREATED);
1207 if ((sec->flags & SEC_ALLOC) != 0)
1208 flags |= SEC_ALLOC | SEC_LOAD;
1209 if (sreloc == NULL
1210 || ! bfd_set_section_flags (dynobj, sreloc, flags)
1211 || ! bfd_set_section_alignment (dynobj, sreloc, 2))
1212 return FALSE;
1213 }
1214 elf_section_data (sec)->sreloc = sreloc;
1215 }
1216
1217 /* If this is a global symbol, we count the number of
1218 relocations we need for this symbol. */
1219 if (h != NULL)
1220 head = &((struct elf32_sparc_link_hash_entry *) h)->dyn_relocs;
1221 else
1222 {
1223 /* Track dynamic relocs needed for local syms too.
1224 We really need local syms available to do this
1225 easily. Oh well. */
1226
1227 asection *s;
1228 s = bfd_section_from_r_symndx (abfd, &htab->sym_sec,
1229 sec, r_symndx);
1230 if (s == NULL)
1231 return FALSE;
1232
1233 head = ((struct elf32_sparc_dyn_relocs **)
1234 &elf_section_data (s)->local_dynrel);
1235 }
1236
1237 p = *head;
1238 if (p == NULL || p->sec != sec)
1239 {
1240 bfd_size_type amt = sizeof *p;
1241 p = ((struct elf32_sparc_dyn_relocs *)
1242 bfd_alloc (htab->elf.dynobj, amt));
1243 if (p == NULL)
1244 return FALSE;
1245 p->next = *head;
1246 *head = p;
1247 p->sec = sec;
1248 p->count = 0;
1249 p->pc_count = 0;
1250 }
1251
1252 p->count += 1;
1253 if (_bfd_sparc_elf_howto_table[r_type].pc_relative)
1254 p->pc_count += 1;
1255 }
1256
1257 break;
1258
1259 case R_SPARC_GNU_VTINHERIT:
1260 if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
1261 return FALSE;
1262 break;
1263
1264 case R_SPARC_GNU_VTENTRY:
1265 if (!bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
1266 return FALSE;
1267 break;
1268
1269 default:
1270 break;
1271 }
1272 }
1273
1274 return TRUE;
1275 }
1276
1277 static asection *
1278 elf32_sparc_gc_mark_hook (sec, info, rel, h, sym)
1279 asection *sec;
1280 struct bfd_link_info *info ATTRIBUTE_UNUSED;
1281 Elf_Internal_Rela *rel;
1282 struct elf_link_hash_entry *h;
1283 Elf_Internal_Sym *sym;
1284 {
1285 if (h != NULL)
1286 {
1287 switch (ELF32_R_TYPE (rel->r_info))
1288 {
1289 case R_SPARC_GNU_VTINHERIT:
1290 case R_SPARC_GNU_VTENTRY:
1291 break;
1292
1293 default:
1294 switch (h->root.type)
1295 {
1296 case bfd_link_hash_defined:
1297 case bfd_link_hash_defweak:
1298 return h->root.u.def.section;
1299
1300 case bfd_link_hash_common:
1301 return h->root.u.c.p->section;
1302
1303 default:
1304 break;
1305 }
1306 }
1307 }
1308 else
1309 return bfd_section_from_elf_index (sec->owner, sym->st_shndx);
1310
1311 return NULL;
1312 }
1313
1314 /* Update the got entry reference counts for the section being removed. */
1315 static bfd_boolean
1316 elf32_sparc_gc_sweep_hook (abfd, info, sec, relocs)
1317 bfd *abfd;
1318 struct bfd_link_info *info ATTRIBUTE_UNUSED;
1319 asection *sec;
1320 const Elf_Internal_Rela *relocs;
1321 {
1322 Elf_Internal_Shdr *symtab_hdr;
1323 struct elf_link_hash_entry **sym_hashes;
1324 bfd_signed_vma *local_got_refcounts;
1325 const Elf_Internal_Rela *rel, *relend;
1326
1327 elf_section_data (sec)->local_dynrel = NULL;
1328
1329 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
1330 sym_hashes = elf_sym_hashes (abfd);
1331 local_got_refcounts = elf_local_got_refcounts (abfd);
1332
1333 relend = relocs + sec->reloc_count;
1334 for (rel = relocs; rel < relend; rel++)
1335 {
1336 unsigned long r_symndx;
1337 unsigned int r_type;
1338 struct elf_link_hash_entry *h = NULL;
1339
1340 r_symndx = ELF32_R_SYM (rel->r_info);
1341 if (r_symndx >= symtab_hdr->sh_info)
1342 {
1343 struct elf32_sparc_link_hash_entry *eh;
1344 struct elf32_sparc_dyn_relocs **pp;
1345 struct elf32_sparc_dyn_relocs *p;
1346
1347 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
1348 eh = (struct elf32_sparc_link_hash_entry *) h;
1349 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; pp = &p->next)
1350 if (p->sec == sec)
1351 {
1352 /* Everything must go for SEC. */
1353 *pp = p->next;
1354 break;
1355 }
1356 }
1357
1358 r_type = ELF32_R_TYPE (rel->r_info);
1359 r_type = elf32_sparc_tls_transition (info, abfd, r_type, h != NULL);
1360 switch (r_type)
1361 {
1362 case R_SPARC_TLS_LDM_HI22:
1363 case R_SPARC_TLS_LDM_LO10:
1364 if (elf32_sparc_hash_table (info)->tls_ldm_got.refcount > 0)
1365 elf32_sparc_hash_table (info)->tls_ldm_got.refcount -= 1;
1366 break;
1367
1368 case R_SPARC_TLS_GD_HI22:
1369 case R_SPARC_TLS_GD_LO10:
1370 case R_SPARC_TLS_IE_HI22:
1371 case R_SPARC_TLS_IE_LO10:
1372 case R_SPARC_GOT10:
1373 case R_SPARC_GOT13:
1374 case R_SPARC_GOT22:
1375 if (h != NULL)
1376 {
1377 if (h->got.refcount > 0)
1378 h->got.refcount--;
1379 }
1380 else
1381 {
1382 if (local_got_refcounts[r_symndx] > 0)
1383 local_got_refcounts[r_symndx]--;
1384 }
1385 break;
1386
1387 case R_SPARC_PC10:
1388 case R_SPARC_PC22:
1389 if (h != NULL
1390 && strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)
1391 break;
1392 /* Fall through. */
1393
1394 case R_SPARC_DISP8:
1395 case R_SPARC_DISP16:
1396 case R_SPARC_DISP32:
1397 case R_SPARC_WDISP30:
1398 case R_SPARC_WDISP22:
1399 case R_SPARC_WDISP19:
1400 case R_SPARC_WDISP16:
1401 case R_SPARC_8:
1402 case R_SPARC_16:
1403 case R_SPARC_32:
1404 case R_SPARC_HI22:
1405 case R_SPARC_22:
1406 case R_SPARC_13:
1407 case R_SPARC_LO10:
1408 case R_SPARC_UA16:
1409 case R_SPARC_UA32:
1410 case R_SPARC_PLT32:
1411 if (info->shared)
1412 break;
1413 /* Fall through. */
1414
1415 case R_SPARC_WPLT30:
1416 if (h != NULL)
1417 {
1418 if (h->plt.refcount > 0)
1419 h->plt.refcount--;
1420 }
1421 break;
1422
1423 default:
1424 break;
1425 }
1426 }
1427
1428 return TRUE;
1429 }
1430
1431 /* Adjust a symbol defined by a dynamic object and referenced by a
1432 regular object. The current definition is in some section of the
1433 dynamic object, but we're not including those sections. We have to
1434 change the definition to something the rest of the link can
1435 understand. */
1436
1437 static bfd_boolean
1438 elf32_sparc_adjust_dynamic_symbol (info, h)
1439 struct bfd_link_info *info;
1440 struct elf_link_hash_entry *h;
1441 {
1442 struct elf32_sparc_link_hash_table *htab;
1443 struct elf32_sparc_link_hash_entry * eh;
1444 struct elf32_sparc_dyn_relocs *p;
1445 asection *s;
1446 unsigned int power_of_two;
1447
1448 htab = elf32_sparc_hash_table (info);
1449
1450 /* Make sure we know what is going on here. */
1451 BFD_ASSERT (htab->elf.dynobj != NULL
1452 && (h->needs_plt
1453 || h->u.weakdef != NULL
1454 || (h->def_dynamic
1455 && h->ref_regular
1456 && !h->def_regular)));
1457
1458 /* If this is a function, put it in the procedure linkage table. We
1459 will fill in the contents of the procedure linkage table later
1460 (although we could actually do it here). The STT_NOTYPE
1461 condition is a hack specifically for the Oracle libraries
1462 delivered for Solaris; for some inexplicable reason, they define
1463 some of their functions as STT_NOTYPE when they really should be
1464 STT_FUNC. */
1465 if (h->type == STT_FUNC
1466 || h->needs_plt
1467 || (h->type == STT_NOTYPE
1468 && (h->root.type == bfd_link_hash_defined
1469 || h->root.type == bfd_link_hash_defweak)
1470 && (h->root.u.def.section->flags & SEC_CODE) != 0))
1471 {
1472 if (h->plt.refcount <= 0
1473 || (! info->shared
1474 && !h->def_dynamic
1475 && !h->ref_dynamic
1476 && h->root.type != bfd_link_hash_undefweak
1477 && h->root.type != bfd_link_hash_undefined))
1478 {
1479 /* This case can occur if we saw a WPLT30 reloc in an input
1480 file, but the symbol was never referred to by a dynamic
1481 object, or if all references were garbage collected. In
1482 such a case, we don't actually need to build a procedure
1483 linkage table, and we can just do a WDISP30 reloc instead. */
1484 h->plt.offset = (bfd_vma) -1;
1485 h->needs_plt = 0;
1486 }
1487
1488 return TRUE;
1489 }
1490 else
1491 h->plt.offset = (bfd_vma) -1;
1492
1493 /* If this is a weak symbol, and there is a real definition, the
1494 processor independent code will have arranged for us to see the
1495 real definition first, and we can just use the same value. */
1496 if (h->u.weakdef != NULL)
1497 {
1498 BFD_ASSERT (h->u.weakdef->root.type == bfd_link_hash_defined
1499 || h->u.weakdef->root.type == bfd_link_hash_defweak);
1500 h->root.u.def.section = h->u.weakdef->root.u.def.section;
1501 h->root.u.def.value = h->u.weakdef->root.u.def.value;
1502 return TRUE;
1503 }
1504
1505 /* This is a reference to a symbol defined by a dynamic object which
1506 is not a function. */
1507
1508 /* If we are creating a shared library, we must presume that the
1509 only references to the symbol are via the global offset table.
1510 For such cases we need not do anything here; the relocations will
1511 be handled correctly by relocate_section. */
1512 if (info->shared)
1513 return TRUE;
1514
1515 /* If there are no references to this symbol that do not use the
1516 GOT, we don't need to generate a copy reloc. */
1517 if (!h->non_got_ref)
1518 return TRUE;
1519
1520 eh = (struct elf32_sparc_link_hash_entry *) h;
1521 for (p = eh->dyn_relocs; p != NULL; p = p->next)
1522 {
1523 s = p->sec->output_section;
1524 if (s != NULL && (s->flags & SEC_READONLY) != 0)
1525 break;
1526 }
1527
1528 /* If we didn't find any dynamic relocs in read-only sections, then
1529 we'll be keeping the dynamic relocs and avoiding the copy reloc. */
1530 if (p == NULL)
1531 {
1532 h->non_got_ref = 0;
1533 return TRUE;
1534 }
1535
1536 /* We must allocate the symbol in our .dynbss section, which will
1537 become part of the .bss section of the executable. There will be
1538 an entry for this symbol in the .dynsym section. The dynamic
1539 object will contain position independent code, so all references
1540 from the dynamic object to this symbol will go through the global
1541 offset table. The dynamic linker will use the .dynsym entry to
1542 determine the address it must put in the global offset table, so
1543 both the dynamic object and the regular object will refer to the
1544 same memory location for the variable. */
1545
1546 /* We must generate a R_SPARC_COPY reloc to tell the dynamic linker
1547 to copy the initial value out of the dynamic object and into the
1548 runtime process image. We need to remember the offset into the
1549 .rel.bss section we are going to use. */
1550 if ((h->root.u.def.section->flags & SEC_ALLOC) != 0)
1551 {
1552 htab->srelbss->size += sizeof (Elf32_External_Rela);
1553 h->needs_copy = 1;
1554 }
1555
1556 /* We need to figure out the alignment required for this symbol. I
1557 have no idea how ELF linkers handle this. */
1558 power_of_two = bfd_log2 (h->size);
1559 if (power_of_two > 3)
1560 power_of_two = 3;
1561
1562 /* Apply the required alignment. */
1563 s = htab->sdynbss;
1564 s->size = BFD_ALIGN (s->size, (bfd_size_type) (1 << power_of_two));
1565 if (power_of_two > bfd_get_section_alignment (dynobj, s))
1566 {
1567 if (! bfd_set_section_alignment (dynobj, s, power_of_two))
1568 return FALSE;
1569 }
1570
1571 /* Define the symbol as being at this point in the section. */
1572 h->root.u.def.section = s;
1573 h->root.u.def.value = s->size;
1574
1575 /* Increment the section size to make room for the symbol. */
1576 s->size += h->size;
1577
1578 return TRUE;
1579 }
1580
1581 /* Allocate space in .plt, .got and associated reloc sections for
1582 dynamic relocs. */
1583
1584 static bfd_boolean
1585 allocate_dynrelocs (h, inf)
1586 struct elf_link_hash_entry *h;
1587 PTR inf;
1588 {
1589 struct bfd_link_info *info;
1590 struct elf32_sparc_link_hash_table *htab;
1591 struct elf32_sparc_link_hash_entry *eh;
1592 struct elf32_sparc_dyn_relocs *p;
1593
1594 if (h->root.type == bfd_link_hash_indirect)
1595 return TRUE;
1596
1597 if (h->root.type == bfd_link_hash_warning)
1598 /* When warning symbols are created, they **replace** the "real"
1599 entry in the hash table, thus we never get to see the real
1600 symbol in a hash traversal. So look at it now. */
1601 h = (struct elf_link_hash_entry *) h->root.u.i.link;
1602
1603 info = (struct bfd_link_info *) inf;
1604 htab = elf32_sparc_hash_table (info);
1605
1606 if (htab->elf.dynamic_sections_created
1607 && h->plt.refcount > 0)
1608 {
1609 /* Make sure this symbol is output as a dynamic symbol.
1610 Undefined weak syms won't yet be marked as dynamic. */
1611 if (h->dynindx == -1
1612 && !h->forced_local)
1613 {
1614 if (! bfd_elf_link_record_dynamic_symbol (info, h))
1615 return FALSE;
1616 }
1617
1618 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, info->shared, h))
1619 {
1620 asection *s = htab->splt;
1621
1622 /* The first four entries in .plt are reserved. */
1623 if (s->size == 0)
1624 s->size = 4 * PLT_ENTRY_SIZE;
1625
1626 /* The procedure linkage table has a maximum size. */
1627 if (s->size >= 0x400000)
1628 {
1629 bfd_set_error (bfd_error_bad_value);
1630 return FALSE;
1631 }
1632
1633 h->plt.offset = s->size;
1634
1635 /* If this symbol is not defined in a regular file, and we are
1636 not generating a shared library, then set the symbol to this
1637 location in the .plt. This is required to make function
1638 pointers compare as equal between the normal executable and
1639 the shared library. */
1640 if (! info->shared
1641 && !h->def_regular)
1642 {
1643 h->root.u.def.section = s;
1644 h->root.u.def.value = h->plt.offset;
1645 }
1646
1647 /* Make room for this entry. */
1648 s->size += PLT_ENTRY_SIZE;
1649
1650 /* We also need to make an entry in the .rela.plt section. */
1651 htab->srelplt->size += sizeof (Elf32_External_Rela);
1652 }
1653 else
1654 {
1655 h->plt.offset = (bfd_vma) -1;
1656 h->needs_plt = 0;
1657 }
1658 }
1659 else
1660 {
1661 h->plt.offset = (bfd_vma) -1;
1662 h->needs_plt = 0;
1663 }
1664
1665 /* If R_SPARC_TLS_IE_{HI22,LO10} symbol is now local to the binary,
1666 make it a R_SPARC_TLS_LE_{HI22,LO10} requiring no TLS entry. */
1667 if (h->got.refcount > 0
1668 && !info->shared
1669 && h->dynindx == -1
1670 && elf32_sparc_hash_entry(h)->tls_type == GOT_TLS_IE)
1671 h->got.offset = (bfd_vma) -1;
1672 else if (h->got.refcount > 0)
1673 {
1674 asection *s;
1675 bfd_boolean dyn;
1676 int tls_type = elf32_sparc_hash_entry(h)->tls_type;
1677
1678 /* Make sure this symbol is output as a dynamic symbol.
1679 Undefined weak syms won't yet be marked as dynamic. */
1680 if (h->dynindx == -1
1681 && !h->forced_local)
1682 {
1683 if (! bfd_elf_link_record_dynamic_symbol (info, h))
1684 return FALSE;
1685 }
1686
1687 s = htab->sgot;
1688 h->got.offset = s->size;
1689 s->size += 4;
1690 /* R_SPARC_TLS_GD_HI{22,LO10} needs 2 consecutive GOT slots. */
1691 if (tls_type == GOT_TLS_GD)
1692 s->size += 4;
1693 dyn = htab->elf.dynamic_sections_created;
1694 /* R_SPARC_TLS_IE_{HI22,LO10} needs one dynamic relocation,
1695 R_SPARC_TLS_GD_{HI22,LO10} needs one if local symbol and two if
1696 global. */
1697 if ((tls_type == GOT_TLS_GD && h->dynindx == -1)
1698 || tls_type == GOT_TLS_IE)
1699 htab->srelgot->size += sizeof (Elf32_External_Rela);
1700 else if (tls_type == GOT_TLS_GD)
1701 htab->srelgot->size += 2 * sizeof (Elf32_External_Rela);
1702 else if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared, h))
1703 htab->srelgot->size += sizeof (Elf32_External_Rela);
1704 }
1705 else
1706 h->got.offset = (bfd_vma) -1;
1707
1708 eh = (struct elf32_sparc_link_hash_entry *) h;
1709 if (eh->dyn_relocs == NULL)
1710 return TRUE;
1711
1712 /* In the shared -Bsymbolic case, discard space allocated for
1713 dynamic pc-relative relocs against symbols which turn out to be
1714 defined in regular objects. For the normal shared case, discard
1715 space for pc-relative relocs that have become local due to symbol
1716 visibility changes. */
1717
1718 if (info->shared)
1719 {
1720 if (h->def_regular
1721 && (h->forced_local
1722 || info->symbolic))
1723 {
1724 struct elf32_sparc_dyn_relocs **pp;
1725
1726 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; )
1727 {
1728 p->count -= p->pc_count;
1729 p->pc_count = 0;
1730 if (p->count == 0)
1731 *pp = p->next;
1732 else
1733 pp = &p->next;
1734 }
1735 }
1736 }
1737 else
1738 {
1739 /* For the non-shared case, discard space for relocs against
1740 symbols which turn out to need copy relocs or are not
1741 dynamic. */
1742
1743 if (!h->non_got_ref
1744 && ((h->def_dynamic
1745 && !h->def_regular)
1746 || (htab->elf.dynamic_sections_created
1747 && (h->root.type == bfd_link_hash_undefweak
1748 || h->root.type == bfd_link_hash_undefined))))
1749 {
1750 /* Make sure this symbol is output as a dynamic symbol.
1751 Undefined weak syms won't yet be marked as dynamic. */
1752 if (h->dynindx == -1
1753 && !h->forced_local)
1754 {
1755 if (! bfd_elf_link_record_dynamic_symbol (info, h))
1756 return FALSE;
1757 }
1758
1759 /* If that succeeded, we know we'll be keeping all the
1760 relocs. */
1761 if (h->dynindx != -1)
1762 goto keep;
1763 }
1764
1765 eh->dyn_relocs = NULL;
1766
1767 keep: ;
1768 }
1769
1770 /* Finally, allocate space. */
1771 for (p = eh->dyn_relocs; p != NULL; p = p->next)
1772 {
1773 asection *sreloc = elf_section_data (p->sec)->sreloc;
1774 sreloc->size += p->count * sizeof (Elf32_External_Rela);
1775 }
1776
1777 return TRUE;
1778 }
1779
1780 /* Find any dynamic relocs that apply to read-only sections. */
1781
1782 static bfd_boolean
1783 readonly_dynrelocs (h, inf)
1784 struct elf_link_hash_entry *h;
1785 PTR inf;
1786 {
1787 struct elf32_sparc_link_hash_entry *eh;
1788 struct elf32_sparc_dyn_relocs *p;
1789
1790 if (h->root.type == bfd_link_hash_warning)
1791 h = (struct elf_link_hash_entry *) h->root.u.i.link;
1792
1793 eh = (struct elf32_sparc_link_hash_entry *) h;
1794 for (p = eh->dyn_relocs; p != NULL; p = p->next)
1795 {
1796 asection *s = p->sec->output_section;
1797
1798 if (s != NULL && (s->flags & SEC_READONLY) != 0)
1799 {
1800 struct bfd_link_info *info = (struct bfd_link_info *) inf;
1801
1802 info->flags |= DF_TEXTREL;
1803
1804 /* Not an error, just cut short the traversal. */
1805 return FALSE;
1806 }
1807 }
1808 return TRUE;
1809 }
1810
1811 /* Return true if the dynamic symbol for a given section should be
1812 omitted when creating a shared library. */
1813
1814 static bfd_boolean
1815 elf32_sparc_omit_section_dynsym (bfd *output_bfd,
1816 struct bfd_link_info *info,
1817 asection *p)
1818 {
1819 /* We keep the .got section symbol so that explicit relocations
1820 against the _GLOBAL_OFFSET_TABLE_ symbol emitted in PIC mode
1821 can be turned into relocations against the .got symbol. */
1822 if (strcmp (p->name, ".got") == 0)
1823 return FALSE;
1824
1825 return _bfd_elf_link_omit_section_dynsym (output_bfd, info, p);
1826 }
1827
1828 /* Set the sizes of the dynamic sections. */
1829
1830 static bfd_boolean
1831 elf32_sparc_size_dynamic_sections (output_bfd, info)
1832 bfd *output_bfd ATTRIBUTE_UNUSED;
1833 struct bfd_link_info *info;
1834 {
1835 struct elf32_sparc_link_hash_table *htab;
1836 bfd *dynobj;
1837 asection *s;
1838 bfd *ibfd;
1839
1840 htab = elf32_sparc_hash_table (info);
1841 dynobj = htab->elf.dynobj;
1842 BFD_ASSERT (dynobj != NULL);
1843
1844 if (elf_hash_table (info)->dynamic_sections_created)
1845 {
1846 /* Set the contents of the .interp section to the interpreter. */
1847 if (info->executable)
1848 {
1849 s = bfd_get_section_by_name (dynobj, ".interp");
1850 BFD_ASSERT (s != NULL);
1851 s->size = sizeof ELF_DYNAMIC_INTERPRETER;
1852 s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
1853 }
1854 }
1855
1856 /* Set up .got offsets for local syms, and space for local dynamic
1857 relocs. */
1858 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next)
1859 {
1860 bfd_signed_vma *local_got;
1861 bfd_signed_vma *end_local_got;
1862 char *local_tls_type;
1863 bfd_size_type locsymcount;
1864 Elf_Internal_Shdr *symtab_hdr;
1865 asection *srel;
1866
1867 if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour)
1868 continue;
1869
1870 for (s = ibfd->sections; s != NULL; s = s->next)
1871 {
1872 struct elf32_sparc_dyn_relocs *p;
1873
1874 for (p = *((struct elf32_sparc_dyn_relocs **)
1875 &elf_section_data (s)->local_dynrel);
1876 p != NULL;
1877 p = p->next)
1878 {
1879 if (!bfd_is_abs_section (p->sec)
1880 && bfd_is_abs_section (p->sec->output_section))
1881 {
1882 /* Input section has been discarded, either because
1883 it is a copy of a linkonce section or due to
1884 linker script /DISCARD/, so we'll be discarding
1885 the relocs too. */
1886 }
1887 else if (p->count != 0)
1888 {
1889 srel = elf_section_data (p->sec)->sreloc;
1890 srel->size += p->count * sizeof (Elf32_External_Rela);
1891 if ((p->sec->output_section->flags & SEC_READONLY) != 0)
1892 info->flags |= DF_TEXTREL;
1893 }
1894 }
1895 }
1896
1897 local_got = elf_local_got_refcounts (ibfd);
1898 if (!local_got)
1899 continue;
1900
1901 symtab_hdr = &elf_tdata (ibfd)->symtab_hdr;
1902 locsymcount = symtab_hdr->sh_info;
1903 end_local_got = local_got + locsymcount;
1904 local_tls_type = elf32_sparc_local_got_tls_type (ibfd);
1905 s = htab->sgot;
1906 srel = htab->srelgot;
1907 for (; local_got < end_local_got; ++local_got, ++local_tls_type)
1908 {
1909 if (*local_got > 0)
1910 {
1911 *local_got = s->size;
1912 s->size += 4;
1913 if (*local_tls_type == GOT_TLS_GD)
1914 s->size += 4;
1915 if (info->shared
1916 || *local_tls_type == GOT_TLS_GD
1917 || *local_tls_type == GOT_TLS_IE)
1918 srel->size += sizeof (Elf32_External_Rela);
1919 }
1920 else
1921 *local_got = (bfd_vma) -1;
1922 }
1923 }
1924
1925 if (htab->tls_ldm_got.refcount > 0)
1926 {
1927 /* Allocate 2 got entries and 1 dynamic reloc for
1928 R_SPARC_TLS_LDM_{HI22,LO10} relocs. */
1929 htab->tls_ldm_got.offset = htab->sgot->size;
1930 htab->sgot->size += 8;
1931 htab->srelgot->size += sizeof (Elf32_External_Rela);
1932 }
1933 else
1934 htab->tls_ldm_got.offset = -1;
1935
1936 /* Allocate global sym .plt and .got entries, and space for global
1937 sym dynamic relocs. */
1938 elf_link_hash_traverse (&htab->elf, allocate_dynrelocs, (PTR) info);
1939
1940 if (elf_hash_table (info)->dynamic_sections_created)
1941 {
1942 /* Make space for the trailing nop in .plt. */
1943 if (htab->splt->size > 0)
1944 htab->splt->size += 4;
1945
1946 /* If the .got section is more than 0x1000 bytes, we add
1947 0x1000 to the value of _GLOBAL_OFFSET_TABLE_, so that 13
1948 bit relocations have a greater chance of working. */
1949 if (htab->sgot->size >= 0x1000
1950 && elf_hash_table (info)->hgot->root.u.def.value == 0)
1951 elf_hash_table (info)->hgot->root.u.def.value = 0x1000;
1952 }
1953
1954 /* The check_relocs and adjust_dynamic_symbol entry points have
1955 determined the sizes of the various dynamic sections. Allocate
1956 memory for them. */
1957 for (s = dynobj->sections; s != NULL; s = s->next)
1958 {
1959 const char *name;
1960 bfd_boolean strip = FALSE;
1961
1962 if ((s->flags & SEC_LINKER_CREATED) == 0)
1963 continue;
1964
1965 /* It's OK to base decisions on the section name, because none
1966 of the dynobj section names depend upon the input files. */
1967 name = bfd_get_section_name (dynobj, s);
1968
1969 if (strncmp (name, ".rela", 5) == 0)
1970 {
1971 if (s->size == 0)
1972 {
1973 /* If we don't need this section, strip it from the
1974 output file. This is to handle .rela.bss and
1975 .rel.plt. We must create it in
1976 create_dynamic_sections, because it must be created
1977 before the linker maps input sections to output
1978 sections. The linker does that before
1979 adjust_dynamic_symbol is called, and it is that
1980 function which decides whether anything needs to go
1981 into these sections. */
1982 strip = TRUE;
1983 }
1984 else
1985 {
1986 /* We use the reloc_count field as a counter if we need
1987 to copy relocs into the output file. */
1988 s->reloc_count = 0;
1989 }
1990 }
1991 else if (s != htab->splt && s != htab->sgot)
1992 {
1993 /* It's not one of our sections, so don't allocate space. */
1994 continue;
1995 }
1996
1997 if (strip)
1998 {
1999 _bfd_strip_section_from_output (info, s);
2000 continue;
2001 }
2002
2003 /* Allocate memory for the section contents. */
2004 /* FIXME: This should be a call to bfd_alloc not bfd_zalloc.
2005 Unused entries should be reclaimed before the section's contents
2006 are written out, but at the moment this does not happen. Thus in
2007 order to prevent writing out garbage, we initialise the section's
2008 contents to zero. */
2009 s->contents = (bfd_byte *) bfd_zalloc (dynobj, s->size);
2010 if (s->contents == NULL && s->size != 0)
2011 return FALSE;
2012 }
2013
2014 if (elf_hash_table (info)->dynamic_sections_created)
2015 {
2016 /* Add some entries to the .dynamic section. We fill in the
2017 values later, in elf32_sparc_finish_dynamic_sections, but we
2018 must add the entries now so that we get the correct size for
2019 the .dynamic section. The DT_DEBUG entry is filled in by the
2020 dynamic linker and used by the debugger. */
2021 #define add_dynamic_entry(TAG, VAL) \
2022 _bfd_elf_add_dynamic_entry (info, TAG, VAL)
2023
2024 if (info->executable)
2025 {
2026 if (!add_dynamic_entry (DT_DEBUG, 0))
2027 return FALSE;
2028 }
2029
2030 if (htab->srelplt->size != 0)
2031 {
2032 if (!add_dynamic_entry (DT_PLTGOT, 0)
2033 || !add_dynamic_entry (DT_PLTRELSZ, 0)
2034 || !add_dynamic_entry (DT_PLTREL, DT_RELA)
2035 || !add_dynamic_entry (DT_JMPREL, 0))
2036 return FALSE;
2037 }
2038
2039 if (!add_dynamic_entry (DT_RELA, 0)
2040 || !add_dynamic_entry (DT_RELASZ, 0)
2041 || !add_dynamic_entry (DT_RELAENT, sizeof (Elf32_External_Rela)))
2042 return FALSE;
2043
2044 /* If any dynamic relocs apply to a read-only section,
2045 then we need a DT_TEXTREL entry. */
2046 if ((info->flags & DF_TEXTREL) == 0)
2047 elf_link_hash_traverse (&htab->elf, readonly_dynrelocs,
2048 (PTR) info);
2049
2050 if (info->flags & DF_TEXTREL)
2051 {
2052 if (!add_dynamic_entry (DT_TEXTREL, 0))
2053 return FALSE;
2054 }
2055 }
2056 #undef add_dynamic_entry
2057
2058 return TRUE;
2059 }
2060
2061 struct elf32_sparc_section_data
2062 {
2063 struct bfd_elf_section_data elf;
2064 unsigned int do_relax;
2065 };
2066
2067 #define sec_do_relax(sec) \
2068 ((struct elf32_sparc_section_data *) elf_section_data (sec))->do_relax
2069
2070 static bfd_boolean
2071 elf32_sparc_new_section_hook (abfd, sec)
2072 bfd *abfd;
2073 asection *sec;
2074 {
2075 struct elf32_sparc_section_data *sdata;
2076 bfd_size_type amt = sizeof (*sdata);
2077
2078 sdata = (struct elf32_sparc_section_data *) bfd_zalloc (abfd, amt);
2079 if (sdata == NULL)
2080 return FALSE;
2081 sec->used_by_bfd = (PTR) sdata;
2082
2083 return _bfd_elf_new_section_hook (abfd, sec);
2084 }
2085
2086 static bfd_boolean
2087 elf32_sparc_relax_section (abfd, section, link_info, again)
2088 bfd *abfd ATTRIBUTE_UNUSED;
2089 asection *section ATTRIBUTE_UNUSED;
2090 struct bfd_link_info *link_info ATTRIBUTE_UNUSED;
2091 bfd_boolean *again;
2092 {
2093 *again = FALSE;
2094 sec_do_relax (section) = 1;
2095 return TRUE;
2096 }
2097
2098 /* Return the base VMA address which should be subtracted from real addresses
2099 when resolving @dtpoff relocation.
2100 This is PT_TLS segment p_vaddr. */
2101
2102 static bfd_vma
2103 dtpoff_base (info)
2104 struct bfd_link_info *info;
2105 {
2106 /* If tls_sec is NULL, we should have signalled an error already. */
2107 if (elf_hash_table (info)->tls_sec == NULL)
2108 return 0;
2109 return elf_hash_table (info)->tls_sec->vma;
2110 }
2111
2112 /* Return the relocation value for @tpoff relocation
2113 if STT_TLS virtual address is ADDRESS. */
2114
2115 static bfd_vma
2116 tpoff (info, address)
2117 struct bfd_link_info *info;
2118 bfd_vma address;
2119 {
2120 struct elf_link_hash_table *htab = elf_hash_table (info);
2121
2122 /* If tls_sec is NULL, we should have signalled an error already. */
2123 if (htab->tls_sec == NULL)
2124 return 0;
2125 return address - htab->tls_size - htab->tls_sec->vma;
2126 }
2127
2128 /* Relocate a SPARC ELF section. */
2129
2130 static bfd_boolean
2131 elf32_sparc_relocate_section (output_bfd, info, input_bfd, input_section,
2132 contents, relocs, local_syms, local_sections)
2133 bfd *output_bfd;
2134 struct bfd_link_info *info;
2135 bfd *input_bfd;
2136 asection *input_section;
2137 bfd_byte *contents;
2138 Elf_Internal_Rela *relocs;
2139 Elf_Internal_Sym *local_syms;
2140 asection **local_sections;
2141 {
2142 struct elf32_sparc_link_hash_table *htab;
2143 Elf_Internal_Shdr *symtab_hdr;
2144 struct elf_link_hash_entry **sym_hashes;
2145 bfd_vma *local_got_offsets;
2146 bfd_vma got_base;
2147 asection *sreloc;
2148 Elf_Internal_Rela *rel;
2149 Elf_Internal_Rela *relend;
2150
2151 if (info->relocatable)
2152 return TRUE;
2153
2154 htab = elf32_sparc_hash_table (info);
2155 symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
2156 sym_hashes = elf_sym_hashes (input_bfd);
2157 local_got_offsets = elf_local_got_offsets (input_bfd);
2158
2159 if (elf_hash_table (info)->hgot == NULL)
2160 got_base = 0;
2161 else
2162 got_base = elf_hash_table (info)->hgot->root.u.def.value;
2163
2164 sreloc = elf_section_data (input_section)->sreloc;
2165
2166 rel = relocs;
2167 relend = relocs + input_section->reloc_count;
2168 for (; rel < relend; rel++)
2169 {
2170 int r_type, tls_type;
2171 reloc_howto_type *howto;
2172 unsigned long r_symndx;
2173 struct elf_link_hash_entry *h;
2174 Elf_Internal_Sym *sym;
2175 asection *sec;
2176 bfd_vma relocation, off;
2177 bfd_reloc_status_type r;
2178 bfd_boolean is_plt = FALSE;
2179 bfd_boolean unresolved_reloc;
2180
2181 r_type = ELF32_R_TYPE (rel->r_info);
2182
2183 if (r_type == R_SPARC_GNU_VTINHERIT
2184 || r_type == R_SPARC_GNU_VTENTRY)
2185 continue;
2186
2187 if (r_type < 0 || r_type >= (int) R_SPARC_max_std)
2188 {
2189 bfd_set_error (bfd_error_bad_value);
2190 return FALSE;
2191 }
2192 howto = _bfd_sparc_elf_howto_table + r_type;
2193
2194 /* This is a final link. */
2195 r_symndx = ELF32_R_SYM (rel->r_info);
2196 h = NULL;
2197 sym = NULL;
2198 sec = NULL;
2199 unresolved_reloc = FALSE;
2200 if (r_symndx < symtab_hdr->sh_info)
2201 {
2202 sym = local_syms + r_symndx;
2203 sec = local_sections[r_symndx];
2204 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
2205 }
2206 else
2207 {
2208 bfd_boolean warned ATTRIBUTE_UNUSED;
2209
2210 RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
2211 r_symndx, symtab_hdr, sym_hashes,
2212 h, sec, relocation,
2213 unresolved_reloc, warned);
2214 }
2215
2216 switch (r_type)
2217 {
2218 case R_SPARC_GOT10:
2219 case R_SPARC_GOT13:
2220 case R_SPARC_GOT22:
2221 /* Relocation is to the entry for this symbol in the global
2222 offset table. */
2223 if (htab->sgot == NULL)
2224 abort ();
2225
2226 if (h != NULL)
2227 {
2228 bfd_boolean dyn;
2229
2230 off = h->got.offset;
2231 BFD_ASSERT (off != (bfd_vma) -1);
2232 dyn = elf_hash_table (info)->dynamic_sections_created;
2233
2234 if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared, h)
2235 || (info->shared
2236 && (info->symbolic
2237 || h->dynindx == -1
2238 || h->forced_local)
2239 && h->def_regular))
2240 {
2241 /* This is actually a static link, or it is a
2242 -Bsymbolic link and the symbol is defined
2243 locally, or the symbol was forced to be local
2244 because of a version file. We must initialize
2245 this entry in the global offset table. Since the
2246 offset must always be a multiple of 4, we use the
2247 least significant bit to record whether we have
2248 initialized it already.
2249
2250 When doing a dynamic link, we create a .rela.got
2251 relocation entry to initialize the value. This
2252 is done in the finish_dynamic_symbol routine. */
2253 if ((off & 1) != 0)
2254 off &= ~1;
2255 else
2256 {
2257 bfd_put_32 (output_bfd, relocation,
2258 htab->sgot->contents + off);
2259 h->got.offset |= 1;
2260 }
2261 }
2262 else
2263 unresolved_reloc = FALSE;
2264 }
2265 else
2266 {
2267 BFD_ASSERT (local_got_offsets != NULL
2268 && local_got_offsets[r_symndx] != (bfd_vma) -1);
2269
2270 off = local_got_offsets[r_symndx];
2271
2272 /* The offset must always be a multiple of 4. We use
2273 the least significant bit to record whether we have
2274 already processed this entry. */
2275 if ((off & 1) != 0)
2276 off &= ~1;
2277 else
2278 {
2279
2280 if (info->shared)
2281 {
2282 asection *s;
2283 Elf_Internal_Rela outrel;
2284 bfd_byte *loc;
2285
2286 /* We need to generate a R_SPARC_RELATIVE reloc
2287 for the dynamic linker. */
2288 s = htab->srelgot;
2289 BFD_ASSERT (s != NULL);
2290
2291 outrel.r_offset = (htab->sgot->output_section->vma
2292 + htab->sgot->output_offset
2293 + off);
2294 outrel.r_info = ELF32_R_INFO (0, R_SPARC_RELATIVE);
2295 outrel.r_addend = relocation;
2296 relocation = 0;
2297 loc = s->contents;
2298 loc += s->reloc_count++ * sizeof (Elf32_External_Rela);
2299 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
2300 }
2301
2302 bfd_put_32 (output_bfd, relocation,
2303 htab->sgot->contents + off);
2304 local_got_offsets[r_symndx] |= 1;
2305 }
2306 }
2307 relocation = htab->sgot->output_offset + off - got_base;
2308 break;
2309
2310 case R_SPARC_PLT32:
2311 if (h == NULL || h->plt.offset == (bfd_vma) -1)
2312 {
2313 r_type = R_SPARC_32;
2314 goto r_sparc_plt32;
2315 }
2316 /* Fall through. */
2317 case R_SPARC_WPLT30:
2318 r_sparc_wplt30:
2319 /* Relocation is to the entry for this symbol in the
2320 procedure linkage table. */
2321
2322 /* The Solaris native assembler will generate a WPLT30 reloc
2323 for a local symbol if you assemble a call from one
2324 section to another when using -K pic. We treat it as
2325 WDISP30. */
2326 if (h == NULL)
2327 break;
2328
2329 if (h->plt.offset == (bfd_vma) -1 || htab->splt == NULL)
2330 {
2331 /* We didn't make a PLT entry for this symbol. This
2332 happens when statically linking PIC code, or when
2333 using -Bsymbolic. */
2334 break;
2335 }
2336
2337 relocation = (htab->splt->output_section->vma
2338 + htab->splt->output_offset
2339 + h->plt.offset);
2340 unresolved_reloc = FALSE;
2341 if (r_type == R_SPARC_PLT32)
2342 {
2343 r_type = R_SPARC_32;
2344 is_plt = TRUE;
2345 goto r_sparc_plt32;
2346 }
2347 break;
2348
2349 case R_SPARC_PC10:
2350 case R_SPARC_PC22:
2351 if (h != NULL
2352 && strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)
2353 break;
2354 /* Fall through. */
2355 case R_SPARC_DISP8:
2356 case R_SPARC_DISP16:
2357 case R_SPARC_DISP32:
2358 case R_SPARC_WDISP30:
2359 case R_SPARC_WDISP22:
2360 case R_SPARC_WDISP19:
2361 case R_SPARC_WDISP16:
2362 case R_SPARC_8:
2363 case R_SPARC_16:
2364 case R_SPARC_32:
2365 case R_SPARC_HI22:
2366 case R_SPARC_22:
2367 case R_SPARC_13:
2368 case R_SPARC_LO10:
2369 case R_SPARC_UA16:
2370 case R_SPARC_UA32:
2371 r_sparc_plt32:
2372 /* r_symndx will be zero only for relocs against symbols
2373 from removed linkonce sections, or sections discarded by
2374 a linker script. */
2375 if (r_symndx == 0
2376 || (input_section->flags & SEC_ALLOC) == 0)
2377 break;
2378
2379 if ((info->shared
2380 && (h == NULL
2381 || ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
2382 || h->root.type != bfd_link_hash_undefweak)
2383 && (! howto->pc_relative
2384 || (h != NULL
2385 && h->dynindx != -1
2386 && (! info->symbolic
2387 || !h->def_regular))))
2388 || (!info->shared
2389 && h != NULL
2390 && h->dynindx != -1
2391 && !h->non_got_ref
2392 && ((h->def_dynamic
2393 && !h->def_regular)
2394 || h->root.type == bfd_link_hash_undefweak
2395 || h->root.type == bfd_link_hash_undefined)))
2396 {
2397 Elf_Internal_Rela outrel;
2398 bfd_byte *loc;
2399 bfd_boolean skip, relocate = FALSE;
2400
2401 /* When generating a shared object, these relocations
2402 are copied into the output file to be resolved at run
2403 time. */
2404
2405 BFD_ASSERT (sreloc != NULL);
2406
2407 skip = FALSE;
2408
2409 outrel.r_offset =
2410 _bfd_elf_section_offset (output_bfd, info, input_section,
2411 rel->r_offset);
2412 if (outrel.r_offset == (bfd_vma) -1)
2413 skip = TRUE;
2414 else if (outrel.r_offset == (bfd_vma) -2)
2415 skip = TRUE, relocate = TRUE;
2416 outrel.r_offset += (input_section->output_section->vma
2417 + input_section->output_offset);
2418
2419 /* Optimize unaligned reloc usage now that we know where
2420 it finally resides. */
2421 switch (r_type)
2422 {
2423 case R_SPARC_16:
2424 if (outrel.r_offset & 1)
2425 r_type = R_SPARC_UA16;
2426 break;
2427 case R_SPARC_UA16:
2428 if (!(outrel.r_offset & 1))
2429 r_type = R_SPARC_16;
2430 break;
2431 case R_SPARC_32:
2432 if (outrel.r_offset & 3)
2433 r_type = R_SPARC_UA32;
2434 break;
2435 case R_SPARC_UA32:
2436 if (!(outrel.r_offset & 3))
2437 r_type = R_SPARC_32;
2438 break;
2439 case R_SPARC_DISP8:
2440 case R_SPARC_DISP16:
2441 case R_SPARC_DISP32:
2442 /* If the symbol is not dynamic, we should not keep
2443 a dynamic relocation. But an .rela.* slot has been
2444 allocated for it, output R_SPARC_NONE.
2445 FIXME: Add code tracking needed dynamic relocs as
2446 e.g. i386 has. */
2447 if (h->dynindx == -1)
2448 skip = TRUE, relocate = TRUE;
2449 break;
2450 }
2451
2452 if (skip)
2453 memset (&outrel, 0, sizeof outrel);
2454 /* h->dynindx may be -1 if the symbol was marked to
2455 become local. */
2456 else if (h != NULL && ! is_plt
2457 && ((! info->symbolic && h->dynindx != -1)
2458 || !h->def_regular))
2459 {
2460 BFD_ASSERT (h->dynindx != -1);
2461 outrel.r_info = ELF32_R_INFO (h->dynindx, r_type);
2462 outrel.r_addend = rel->r_addend;
2463 }
2464 else
2465 {
2466 if (r_type == R_SPARC_32)
2467 {
2468 outrel.r_info = ELF32_R_INFO (0, R_SPARC_RELATIVE);
2469 outrel.r_addend = relocation + rel->r_addend;
2470 }
2471 else
2472 {
2473 long indx;
2474
2475 if (is_plt)
2476 sec = htab->splt;
2477
2478 if (bfd_is_abs_section (sec))
2479 indx = 0;
2480 else if (sec == NULL || sec->owner == NULL)
2481 {
2482 bfd_set_error (bfd_error_bad_value);
2483 return FALSE;
2484 }
2485 else
2486 {
2487 asection *osec;
2488
2489 osec = sec->output_section;
2490 indx = elf_section_data (osec)->dynindx;
2491
2492 /* FIXME: we really should be able to link non-pic
2493 shared libraries. */
2494 if (indx == 0)
2495 {
2496 BFD_FAIL ();
2497 (*_bfd_error_handler)
2498 (_("%B: probably compiled without -fPIC?"),
2499 input_bfd);
2500 bfd_set_error (bfd_error_bad_value);
2501 return FALSE;
2502 }
2503 }
2504
2505 outrel.r_info = ELF32_R_INFO (indx, r_type);
2506 outrel.r_addend = relocation + rel->r_addend;
2507 }
2508 }
2509
2510 loc = sreloc->contents;
2511 loc += sreloc->reloc_count++ * sizeof (Elf32_External_Rela);
2512 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
2513
2514 /* This reloc will be computed at runtime, so there's no
2515 need to do anything now. */
2516 if (! relocate)
2517 continue;
2518 }
2519 break;
2520
2521 case R_SPARC_TLS_GD_HI22:
2522 if (! elf32_sparc_tdata (input_bfd)->has_tlsgd)
2523 {
2524 /* R_SPARC_REV32 used the same reloc number as
2525 R_SPARC_TLS_GD_HI22. */
2526 r_type = R_SPARC_REV32;
2527 break;
2528 }
2529 /* Fall through */
2530
2531 case R_SPARC_TLS_GD_LO10:
2532 case R_SPARC_TLS_IE_HI22:
2533 case R_SPARC_TLS_IE_LO10:
2534 r_type = elf32_sparc_tls_transition (info, input_bfd, r_type,
2535 h == NULL);
2536 tls_type = GOT_UNKNOWN;
2537 if (h == NULL && local_got_offsets)
2538 tls_type = elf32_sparc_local_got_tls_type (input_bfd) [r_symndx];
2539 else if (h != NULL)
2540 {
2541 tls_type = elf32_sparc_hash_entry(h)->tls_type;
2542 if (!info->shared && h->dynindx == -1 && tls_type == GOT_TLS_IE)
2543 switch (ELF32_R_TYPE (rel->r_info))
2544 {
2545 case R_SPARC_TLS_GD_HI22:
2546 case R_SPARC_TLS_IE_HI22:
2547 r_type = R_SPARC_TLS_LE_HIX22;
2548 break;
2549 default:
2550 r_type = R_SPARC_TLS_LE_LOX10;
2551 break;
2552 }
2553 }
2554 if (tls_type == GOT_TLS_IE)
2555 switch (r_type)
2556 {
2557 case R_SPARC_TLS_GD_HI22:
2558 r_type = R_SPARC_TLS_IE_HI22;
2559 break;
2560 case R_SPARC_TLS_GD_LO10:
2561 r_type = R_SPARC_TLS_IE_LO10;
2562 break;
2563 }
2564
2565 if (r_type == R_SPARC_TLS_LE_HIX22)
2566 {
2567 relocation = tpoff (info, relocation);
2568 break;
2569 }
2570 if (r_type == R_SPARC_TLS_LE_LOX10)
2571 {
2572 /* Change add into xor. */
2573 relocation = tpoff (info, relocation);
2574 bfd_put_32 (output_bfd, (bfd_get_32 (input_bfd,
2575 contents + rel->r_offset)
2576 | 0x80182000), contents + rel->r_offset);
2577 break;
2578 }
2579
2580 if (h != NULL)
2581 {
2582 off = h->got.offset;
2583 h->got.offset |= 1;
2584 }
2585 else
2586 {
2587 BFD_ASSERT (local_got_offsets != NULL);
2588 off = local_got_offsets[r_symndx];
2589 local_got_offsets[r_symndx] |= 1;
2590 }
2591
2592 r_sparc_tlsldm:
2593 if (htab->sgot == NULL)
2594 abort ();
2595
2596 if ((off & 1) != 0)
2597 off &= ~1;
2598 else
2599 {
2600 Elf_Internal_Rela outrel;
2601 Elf32_External_Rela *loc;
2602 int dr_type, indx;
2603
2604 if (htab->srelgot == NULL)
2605 abort ();
2606
2607 bfd_put_32 (output_bfd, 0, htab->sgot->contents + off);
2608 outrel.r_offset = (htab->sgot->output_section->vma
2609 + htab->sgot->output_offset + off);
2610 indx = h && h->dynindx != -1 ? h->dynindx : 0;
2611 if (r_type == R_SPARC_TLS_IE_HI22
2612 || r_type == R_SPARC_TLS_IE_LO10)
2613 dr_type = R_SPARC_TLS_TPOFF32;
2614 else
2615 dr_type = R_SPARC_TLS_DTPMOD32;
2616 if (dr_type == R_SPARC_TLS_TPOFF32 && indx == 0)
2617 outrel.r_addend = relocation - dtpoff_base (info);
2618 else
2619 outrel.r_addend = 0;
2620 outrel.r_info = ELF32_R_INFO (indx, dr_type);
2621 loc = (Elf32_External_Rela *) htab->srelgot->contents;
2622 loc += htab->srelgot->reloc_count++;
2623 bfd_elf32_swap_reloca_out (output_bfd, &outrel,
2624 (bfd_byte *) loc);
2625
2626 if (r_type == R_SPARC_TLS_GD_HI22
2627 || r_type == R_SPARC_TLS_GD_LO10)
2628 {
2629 if (indx == 0)
2630 {
2631 BFD_ASSERT (! unresolved_reloc);
2632 bfd_put_32 (output_bfd,
2633 relocation - dtpoff_base (info),
2634 htab->sgot->contents + off + 4);
2635 }
2636 else
2637 {
2638 bfd_put_32 (output_bfd, 0,
2639 htab->sgot->contents + off + 4);
2640 outrel.r_info = ELF32_R_INFO (indx,
2641 R_SPARC_TLS_DTPOFF32);
2642 outrel.r_offset += 4;
2643 htab->srelgot->reloc_count++;
2644 loc++;
2645 bfd_elf32_swap_reloca_out (output_bfd, &outrel,
2646 (bfd_byte *) loc);
2647 }
2648 }
2649 else if (dr_type == R_SPARC_TLS_DTPMOD32)
2650 {
2651 bfd_put_32 (output_bfd, 0,
2652 htab->sgot->contents + off + 4);
2653 }
2654 }
2655
2656 if (off >= (bfd_vma) -2)
2657 abort ();
2658
2659 relocation = htab->sgot->output_offset + off - got_base;
2660 unresolved_reloc = FALSE;
2661 howto = _bfd_sparc_elf_howto_table + r_type;
2662 break;
2663
2664 case R_SPARC_TLS_LDM_HI22:
2665 case R_SPARC_TLS_LDM_LO10:
2666 if (! info->shared)
2667 {
2668 bfd_put_32 (output_bfd, SPARC_NOP, contents + rel->r_offset);
2669 continue;
2670 }
2671 off = htab->tls_ldm_got.offset;
2672 htab->tls_ldm_got.offset |= 1;
2673 goto r_sparc_tlsldm;
2674
2675 case R_SPARC_TLS_LDO_HIX22:
2676 case R_SPARC_TLS_LDO_LOX10:
2677 if (info->shared)
2678 relocation -= dtpoff_base (info);
2679 else
2680 relocation = tpoff (info, relocation);
2681 break;
2682
2683 case R_SPARC_TLS_LE_HIX22:
2684 case R_SPARC_TLS_LE_LOX10:
2685 if (info->shared)
2686 {
2687 Elf_Internal_Rela outrel;
2688 bfd_boolean skip, relocate = FALSE;
2689
2690 BFD_ASSERT (sreloc != NULL);
2691 skip = FALSE;
2692 outrel.r_offset =
2693 _bfd_elf_section_offset (output_bfd, info, input_section,
2694 rel->r_offset);
2695 if (outrel.r_offset == (bfd_vma) -1)
2696 skip = TRUE;
2697 else if (outrel.r_offset == (bfd_vma) -2)
2698 skip = TRUE, relocate = TRUE;
2699 outrel.r_offset += (input_section->output_section->vma
2700 + input_section->output_offset);
2701 if (skip)
2702 memset (&outrel, 0, sizeof outrel);
2703 else
2704 {
2705 outrel.r_info = ELF32_R_INFO (0, r_type);
2706 outrel.r_addend = relocation - dtpoff_base (info)
2707 + rel->r_addend;
2708 }
2709
2710 bfd_elf32_swap_reloca_out (output_bfd, &outrel,
2711 (bfd_byte *) (((Elf32_External_Rela *)
2712 sreloc->contents)
2713 + sreloc->reloc_count));
2714 ++sreloc->reloc_count;
2715 continue;
2716 }
2717 relocation = tpoff (info, relocation);
2718 break;
2719
2720 case R_SPARC_TLS_LDM_CALL:
2721 if (! info->shared)
2722 {
2723 /* mov %g0, %o0 */
2724 bfd_put_32 (output_bfd, 0x90100000, contents + rel->r_offset);
2725 continue;
2726 }
2727 /* Fall through */
2728
2729 case R_SPARC_TLS_GD_CALL:
2730 tls_type = GOT_UNKNOWN;
2731 if (h == NULL && local_got_offsets)
2732 tls_type = elf32_sparc_local_got_tls_type (input_bfd) [r_symndx];
2733 else if (h != NULL)
2734 tls_type = elf32_sparc_hash_entry(h)->tls_type;
2735 if (! info->shared
2736 || (r_type == R_SPARC_TLS_GD_CALL && tls_type == GOT_TLS_IE))
2737 {
2738 bfd_vma insn;
2739
2740 if (!info->shared && (h == NULL || h->dynindx == -1))
2741 {
2742 /* GD -> LE */
2743 bfd_put_32 (output_bfd, SPARC_NOP, contents + rel->r_offset);
2744 continue;
2745 }
2746
2747 /* GD -> IE */
2748 if (rel + 1 < relend
2749 && ELF32_R_TYPE (rel[1].r_info) == R_SPARC_TLS_GD_ADD
2750 && rel[1].r_offset == rel->r_offset + 4
2751 && ELF32_R_SYM (rel[1].r_info) == r_symndx
2752 && (((insn = bfd_get_32 (input_bfd,
2753 contents + rel[1].r_offset))
2754 >> 25) & 0x1f) == 8)
2755 {
2756 /* We have
2757 call __tls_get_addr, %tgd_call(foo)
2758 add %reg1, %reg2, %o0, %tgd_add(foo)
2759 and change it into IE:
2760 ld [%reg1 + %reg2], %o0, %tie_ld(foo)
2761 add %g7, %o0, %o0, %tie_add(foo).
2762 add is 0x80000000 | (rd << 25) | (rs1 << 14) | rs2,
2763 ld is 0xc0000000 | (rd << 25) | (rs1 << 14) | rs2. */
2764 bfd_put_32 (output_bfd, insn | 0xc0000000,
2765 contents + rel->r_offset);
2766 bfd_put_32 (output_bfd, 0x9001c008,
2767 contents + rel->r_offset + 4);
2768 rel++;
2769 continue;
2770 }
2771
2772 bfd_put_32 (output_bfd, 0x9001c008, contents + rel->r_offset);
2773 continue;
2774 }
2775
2776 h = (struct elf_link_hash_entry *)
2777 bfd_link_hash_lookup (info->hash, "__tls_get_addr", FALSE,
2778 FALSE, TRUE);
2779 BFD_ASSERT (h != NULL);
2780 r_type = R_SPARC_WPLT30;
2781 howto = _bfd_sparc_elf_howto_table + r_type;
2782 goto r_sparc_wplt30;
2783
2784 case R_SPARC_TLS_GD_ADD:
2785 tls_type = GOT_UNKNOWN;
2786 if (h == NULL && local_got_offsets)
2787 tls_type = elf32_sparc_local_got_tls_type (input_bfd) [r_symndx];
2788 else if (h != NULL)
2789 tls_type = elf32_sparc_hash_entry(h)->tls_type;
2790 if (! info->shared || tls_type == GOT_TLS_IE)
2791 {
2792 /* add %reg1, %reg2, %reg3, %tgd_add(foo)
2793 changed into IE:
2794 ld [%reg1 + %reg2], %reg3, %tie_ld(foo)
2795 or LE:
2796 add %g7, %reg2, %reg3. */
2797 bfd_vma insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
2798 if ((h != NULL && h->dynindx != -1) || info->shared)
2799 relocation = insn | 0xc0000000;
2800 else
2801 relocation = (insn & ~0x7c000) | 0x1c000;
2802 bfd_put_32 (output_bfd, relocation, contents + rel->r_offset);
2803 }
2804 continue;
2805
2806 case R_SPARC_TLS_LDM_ADD:
2807 if (! info->shared)
2808 bfd_put_32 (output_bfd, SPARC_NOP, contents + rel->r_offset);
2809 continue;
2810
2811 case R_SPARC_TLS_LDO_ADD:
2812 if (! info->shared)
2813 {
2814 /* Change rs1 into %g7. */
2815 bfd_vma insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
2816 insn = (insn & ~0x7c000) | 0x1c000;
2817 bfd_put_32 (output_bfd, insn, contents + rel->r_offset);
2818 }
2819 continue;
2820
2821 case R_SPARC_TLS_IE_LD:
2822 case R_SPARC_TLS_IE_LDX:
2823 if (! info->shared && (h == NULL || h->dynindx == -1))
2824 {
2825 bfd_vma insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
2826 int rs2 = insn & 0x1f;
2827 int rd = (insn >> 25) & 0x1f;
2828
2829 if (rs2 == rd)
2830 relocation = SPARC_NOP;
2831 else
2832 relocation = 0x80100000 | (insn & 0x3e00001f);
2833 bfd_put_32 (output_bfd, relocation, contents + rel->r_offset);
2834 }
2835 continue;
2836
2837 case R_SPARC_TLS_IE_ADD:
2838 /* Totally useless relocation. */
2839 continue;
2840
2841 case R_SPARC_TLS_DTPOFF32:
2842 relocation -= dtpoff_base (info);
2843 break;
2844
2845 default:
2846 break;
2847 }
2848
2849 /* Dynamic relocs are not propagated for SEC_DEBUGGING sections
2850 because such sections are not SEC_ALLOC and thus ld.so will
2851 not process them. */
2852 if (unresolved_reloc
2853 && !((input_section->flags & SEC_DEBUGGING) != 0
2854 && h->def_dynamic))
2855 (*_bfd_error_handler)
2856 (_("%B(%A+0x%lx): unresolvable relocation against symbol `%s'"),
2857 input_bfd,
2858 input_section,
2859 (long) rel->r_offset,
2860 h->root.root.string);
2861
2862 r = bfd_reloc_continue;
2863 if (r_type == R_SPARC_WDISP16)
2864 {
2865 bfd_vma x;
2866
2867 relocation += rel->r_addend;
2868 relocation -= (input_section->output_section->vma
2869 + input_section->output_offset);
2870 relocation -= rel->r_offset;
2871
2872 x = bfd_get_32 (input_bfd, contents + rel->r_offset);
2873 x |= ((((relocation >> 2) & 0xc000) << 6)
2874 | ((relocation >> 2) & 0x3fff));
2875 bfd_put_32 (input_bfd, x, contents + rel->r_offset);
2876
2877 if ((bfd_signed_vma) relocation < - 0x40000
2878 || (bfd_signed_vma) relocation > 0x3ffff)
2879 r = bfd_reloc_overflow;
2880 else
2881 r = bfd_reloc_ok;
2882 }
2883 else if (r_type == R_SPARC_REV32)
2884 {
2885 bfd_vma x;
2886
2887 relocation = relocation + rel->r_addend;
2888
2889 x = bfd_get_32 (input_bfd, contents + rel->r_offset);
2890 x = x + relocation;
2891 bfd_putl32 (/*input_bfd,*/ x, contents + rel->r_offset);
2892 r = bfd_reloc_ok;
2893 }
2894 else if (r_type == R_SPARC_TLS_LDO_HIX22
2895 || r_type == R_SPARC_TLS_LE_HIX22)
2896 {
2897 bfd_vma x;
2898
2899 relocation += rel->r_addend;
2900 relocation = relocation ^ 0xffffffff;
2901
2902 x = bfd_get_32 (input_bfd, contents + rel->r_offset);
2903 x = (x & ~(bfd_vma) 0x3fffff) | ((relocation >> 10) & 0x3fffff);
2904 bfd_put_32 (input_bfd, x, contents + rel->r_offset);
2905 r = bfd_reloc_ok;
2906 }
2907 else if (r_type == R_SPARC_TLS_LDO_LOX10
2908 || r_type == R_SPARC_TLS_LE_LOX10)
2909 {
2910 bfd_vma x;
2911
2912 relocation += rel->r_addend;
2913 relocation = (relocation & 0x3ff) | 0x1c00;
2914
2915 x = bfd_get_32 (input_bfd, contents + rel->r_offset);
2916 x = (x & ~(bfd_vma) 0x1fff) | relocation;
2917 bfd_put_32 (input_bfd, x, contents + rel->r_offset);
2918
2919 r = bfd_reloc_ok;
2920 }
2921 else if ((r_type == R_SPARC_WDISP30 || r_type == R_SPARC_WPLT30)
2922 && sec_do_relax (input_section)
2923 && rel->r_offset + 4 < input_section->size)
2924 {
2925 #define G0 0
2926 #define O7 15
2927 #define XCC (2 << 20)
2928 #define COND(x) (((x)&0xf)<<25)
2929 #define CONDA COND(0x8)
2930 #define INSN_BPA (F2(0,1) | CONDA | BPRED | XCC)
2931 #define INSN_BA (F2(0,2) | CONDA)
2932 #define INSN_OR F3(2, 0x2, 0)
2933 #define INSN_NOP F2(0,4)
2934
2935 bfd_vma x, y;
2936
2937 /* If the instruction is a call with either:
2938 restore
2939 arithmetic instruction with rd == %o7
2940 where rs1 != %o7 and rs2 if it is register != %o7
2941 then we can optimize if the call destination is near
2942 by changing the call into a branch always. */
2943 x = bfd_get_32 (input_bfd, contents + rel->r_offset);
2944 y = bfd_get_32 (input_bfd, contents + rel->r_offset + 4);
2945 if ((x & OP(~0)) == OP(1) && (y & OP(~0)) == OP(2))
2946 {
2947 if (((y & OP3(~0)) == OP3(0x3d) /* restore */
2948 || ((y & OP3(0x28)) == 0 /* arithmetic */
2949 && (y & RD(~0)) == RD(O7)))
2950 && (y & RS1(~0)) != RS1(O7)
2951 && ((y & F3I(~0))
2952 || (y & RS2(~0)) != RS2(O7)))
2953 {
2954 bfd_vma reloc;
2955
2956 reloc = relocation + rel->r_addend - rel->r_offset;
2957 reloc -= (input_section->output_section->vma
2958 + input_section->output_offset);
2959
2960 /* Ensure the reloc fits into simm22. */
2961 if ((reloc & 3) == 0
2962 && ((reloc & ~(bfd_vma)0x7fffff) == 0
2963 || ((reloc | 0x7fffff) == ~(bfd_vma)0)))
2964 {
2965 reloc >>= 2;
2966
2967 /* Check whether it fits into simm19 on v9. */
2968 if (((reloc & 0x3c0000) == 0
2969 || (reloc & 0x3c0000) == 0x3c0000)
2970 && (elf_elfheader (output_bfd)->e_flags & EF_SPARC_32PLUS))
2971 x = INSN_BPA | (reloc & 0x7ffff); /* ba,pt %xcc */
2972 else
2973 x = INSN_BA | (reloc & 0x3fffff); /* ba */
2974 bfd_put_32 (input_bfd, x, contents + rel->r_offset);
2975 r = bfd_reloc_ok;
2976 if (rel->r_offset >= 4
2977 && (y & (0xffffffff ^ RS1(~0)))
2978 == (INSN_OR | RD(O7) | RS2(G0)))
2979 {
2980 bfd_vma z;
2981 unsigned int reg;
2982
2983 z = bfd_get_32 (input_bfd,
2984 contents + rel->r_offset - 4);
2985 if ((z & (0xffffffff ^ RD(~0)))
2986 != (INSN_OR | RS1(O7) | RS2(G0)))
2987 break;
2988
2989 /* The sequence was
2990 or %o7, %g0, %rN
2991 call foo
2992 or %rN, %g0, %o7
2993
2994 If call foo was replaced with ba, replace
2995 or %rN, %g0, %o7 with nop. */
2996
2997 reg = (y & RS1(~0)) >> 14;
2998 if (reg != ((z & RD(~0)) >> 25)
2999 || reg == G0 || reg == O7)
3000 break;
3001
3002 bfd_put_32 (input_bfd, (bfd_vma) INSN_NOP,
3003 contents + rel->r_offset + 4);
3004 }
3005
3006 }
3007 }
3008 }
3009 }
3010
3011 if (r == bfd_reloc_continue)
3012 r = _bfd_final_link_relocate (howto, input_bfd, input_section,
3013 contents, rel->r_offset,
3014 relocation, rel->r_addend);
3015
3016 if (r != bfd_reloc_ok)
3017 {
3018 switch (r)
3019 {
3020 default:
3021 case bfd_reloc_outofrange:
3022 abort ();
3023 case bfd_reloc_overflow:
3024 {
3025 const char *name;
3026
3027 if (h != NULL)
3028 name = NULL;
3029 else
3030 {
3031 name = bfd_elf_string_from_elf_section (input_bfd,
3032 symtab_hdr->sh_link,
3033 sym->st_name);
3034 if (name == NULL)
3035 return FALSE;
3036 if (*name == '\0')
3037 name = bfd_section_name (input_bfd, sec);
3038 }
3039 if (! ((*info->callbacks->reloc_overflow)
3040 (info, (h ? &h->root : NULL), name, howto->name,
3041 (bfd_vma) 0, input_bfd, input_section,
3042 rel->r_offset)))
3043 return FALSE;
3044 }
3045 break;
3046 }
3047 }
3048 }
3049
3050 return TRUE;
3051 }
3052
3053 /* Finish up dynamic symbol handling. We set the contents of various
3054 dynamic sections here. */
3055
3056 static bfd_boolean
3057 elf32_sparc_finish_dynamic_symbol (output_bfd, info, h, sym)
3058 bfd *output_bfd;
3059 struct bfd_link_info *info;
3060 struct elf_link_hash_entry *h;
3061 Elf_Internal_Sym *sym;
3062 {
3063 bfd *dynobj;
3064 struct elf32_sparc_link_hash_table *htab;
3065
3066 htab = elf32_sparc_hash_table (info);
3067 dynobj = htab->elf.dynobj;
3068
3069 if (h->plt.offset != (bfd_vma) -1)
3070 {
3071 asection *splt;
3072 asection *srela;
3073 Elf_Internal_Rela rela;
3074 bfd_byte *loc;
3075
3076 /* This symbol has an entry in the procedure linkage table. Set
3077 it up. */
3078
3079 BFD_ASSERT (h->dynindx != -1);
3080
3081 splt = htab->splt;
3082 srela = htab->srelplt;
3083 BFD_ASSERT (splt != NULL && srela != NULL);
3084
3085 /* Fill in the entry in the procedure linkage table. */
3086 bfd_put_32 (output_bfd,
3087 PLT_ENTRY_WORD0 + h->plt.offset,
3088 splt->contents + h->plt.offset);
3089 bfd_put_32 (output_bfd,
3090 (PLT_ENTRY_WORD1
3091 + (((- (h->plt.offset + 4)) >> 2) & 0x3fffff)),
3092 splt->contents + h->plt.offset + 4);
3093 bfd_put_32 (output_bfd, (bfd_vma) PLT_ENTRY_WORD2,
3094 splt->contents + h->plt.offset + 8);
3095
3096 /* Fill in the entry in the .rela.plt section. */
3097 rela.r_offset = (splt->output_section->vma
3098 + splt->output_offset
3099 + h->plt.offset);
3100 rela.r_info = ELF32_R_INFO (h->dynindx, R_SPARC_JMP_SLOT);
3101 rela.r_addend = 0;
3102 loc = srela->contents;
3103 loc += (h->plt.offset / PLT_ENTRY_SIZE - 4) * sizeof (Elf32_External_Rela);
3104 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
3105
3106 if (!h->def_regular)
3107 {
3108 /* Mark the symbol as undefined, rather than as defined in
3109 the .plt section. Leave the value alone. */
3110 sym->st_shndx = SHN_UNDEF;
3111 /* If the symbol is weak, we do need to clear the value.
3112 Otherwise, the PLT entry would provide a definition for
3113 the symbol even if the symbol wasn't defined anywhere,
3114 and so the symbol would never be NULL. */
3115 if (!h->ref_regular_nonweak)
3116 sym->st_value = 0;
3117 }
3118 }
3119
3120 if (h->got.offset != (bfd_vma) -1
3121 && elf32_sparc_hash_entry(h)->tls_type != GOT_TLS_GD
3122 && elf32_sparc_hash_entry(h)->tls_type != GOT_TLS_IE)
3123 {
3124 asection *sgot;
3125 asection *srela;
3126 Elf_Internal_Rela rela;
3127 bfd_byte *loc;
3128
3129 /* This symbol has an entry in the global offset table. Set it
3130 up. */
3131
3132 sgot = htab->sgot;
3133 srela = htab->srelgot;
3134 BFD_ASSERT (sgot != NULL && srela != NULL);
3135
3136 rela.r_offset = (sgot->output_section->vma
3137 + sgot->output_offset
3138 + (h->got.offset &~ (bfd_vma) 1));
3139
3140 /* If this is a -Bsymbolic link, and the symbol is defined
3141 locally, we just want to emit a RELATIVE reloc. Likewise if
3142 the symbol was forced to be local because of a version file.
3143 The entry in the global offset table will already have been
3144 initialized in the relocate_section function. */
3145 if (info->shared
3146 && (info->symbolic || h->dynindx == -1)
3147 && h->def_regular)
3148 {
3149 asection *sec = h->root.u.def.section;
3150 rela.r_info = ELF32_R_INFO (0, R_SPARC_RELATIVE);
3151 rela.r_addend = (h->root.u.def.value
3152 + sec->output_section->vma
3153 + sec->output_offset);
3154 }
3155 else
3156 {
3157 rela.r_info = ELF32_R_INFO (h->dynindx, R_SPARC_GLOB_DAT);
3158 rela.r_addend = 0;
3159 }
3160
3161 bfd_put_32 (output_bfd, (bfd_vma) 0,
3162 sgot->contents + (h->got.offset &~ (bfd_vma) 1));
3163 loc = srela->contents;
3164 loc += srela->reloc_count++ * sizeof (Elf32_External_Rela);
3165 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
3166 }
3167
3168 if (h->needs_copy)
3169 {
3170 asection *s;
3171 Elf_Internal_Rela rela;
3172 bfd_byte *loc;
3173
3174 /* This symbols needs a copy reloc. Set it up. */
3175
3176 BFD_ASSERT (h->dynindx != -1);
3177
3178 s = bfd_get_section_by_name (h->root.u.def.section->owner,
3179 ".rela.bss");
3180 BFD_ASSERT (s != NULL);
3181
3182 rela.r_offset = (h->root.u.def.value
3183 + h->root.u.def.section->output_section->vma
3184 + h->root.u.def.section->output_offset);
3185 rela.r_info = ELF32_R_INFO (h->dynindx, R_SPARC_COPY);
3186 rela.r_addend = 0;
3187 loc = s->contents + s->reloc_count++ * sizeof (Elf32_External_Rela);
3188 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
3189 }
3190
3191 /* Mark some specially defined symbols as absolute. */
3192 if (strcmp (h->root.root.string, "_DYNAMIC") == 0
3193 || strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0
3194 || strcmp (h->root.root.string, "_PROCEDURE_LINKAGE_TABLE_") == 0)
3195 sym->st_shndx = SHN_ABS;
3196
3197 return TRUE;
3198 }
3199
3200 /* Finish up the dynamic sections. */
3201
3202 static bfd_boolean
3203 elf32_sparc_finish_dynamic_sections (output_bfd, info)
3204 bfd *output_bfd;
3205 struct bfd_link_info *info;
3206 {
3207 bfd *dynobj;
3208 asection *sdyn;
3209 struct elf32_sparc_link_hash_table *htab;
3210
3211 htab = elf32_sparc_hash_table (info);
3212 dynobj = htab->elf.dynobj;
3213
3214 sdyn = bfd_get_section_by_name (dynobj, ".dynamic");
3215
3216 if (elf_hash_table (info)->dynamic_sections_created)
3217 {
3218 asection *splt;
3219 Elf32_External_Dyn *dyncon, *dynconend;
3220
3221 splt = bfd_get_section_by_name (dynobj, ".plt");
3222 BFD_ASSERT (splt != NULL && sdyn != NULL);
3223
3224 dyncon = (Elf32_External_Dyn *) sdyn->contents;
3225 dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size);
3226 for (; dyncon < dynconend; dyncon++)
3227 {
3228 Elf_Internal_Dyn dyn;
3229 const char *name;
3230 bfd_boolean size;
3231
3232 bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn);
3233
3234 switch (dyn.d_tag)
3235 {
3236 case DT_PLTGOT: name = ".plt"; size = FALSE; break;
3237 case DT_PLTRELSZ: name = ".rela.plt"; size = TRUE; break;
3238 case DT_JMPREL: name = ".rela.plt"; size = FALSE; break;
3239 default: name = NULL; size = FALSE; break;
3240 }
3241
3242 if (name != NULL)
3243 {
3244 asection *s;
3245
3246 s = bfd_get_section_by_name (output_bfd, name);
3247 if (s == NULL)
3248 dyn.d_un.d_val = 0;
3249 else
3250 {
3251 if (! size)
3252 dyn.d_un.d_ptr = s->vma;
3253 else
3254 dyn.d_un.d_val = s->size;
3255 }
3256 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
3257 }
3258 }
3259
3260 /* Clear the first four entries in the procedure linkage table,
3261 and put a nop in the last four bytes. */
3262 if (splt->size > 0)
3263 {
3264 memset (splt->contents, 0, 4 * PLT_ENTRY_SIZE);
3265 bfd_put_32 (output_bfd, (bfd_vma) SPARC_NOP,
3266 splt->contents + splt->size - 4);
3267 }
3268
3269 elf_section_data (splt->output_section)->this_hdr.sh_entsize = 0;
3270 }
3271
3272 /* Set the first entry in the global offset table to the address of
3273 the dynamic section. */
3274 if (htab->sgot && htab->sgot->size > 0)
3275 {
3276 if (sdyn == NULL)
3277 bfd_put_32 (output_bfd, (bfd_vma) 0, htab->sgot->contents);
3278 else
3279 bfd_put_32 (output_bfd,
3280 sdyn->output_section->vma + sdyn->output_offset,
3281 htab->sgot->contents);
3282 }
3283
3284 if (htab->sgot)
3285 elf_section_data (htab->sgot->output_section)->this_hdr.sh_entsize = 4;
3286
3287 return TRUE;
3288 }
3289 \f
3290 /* Functions for dealing with the e_flags field.
3291
3292 We don't define set_private_flags or copy_private_bfd_data because
3293 the only currently defined values are based on the bfd mach number,
3294 so we use the latter instead and defer setting e_flags until the
3295 file is written out. */
3296
3297 /* Merge backend specific data from an object file to the output
3298 object file when linking. */
3299
3300 static bfd_boolean
3301 elf32_sparc_merge_private_bfd_data (ibfd, obfd)
3302 bfd *ibfd;
3303 bfd *obfd;
3304 {
3305 bfd_boolean error;
3306 unsigned long ibfd_mach;
3307 /* FIXME: This should not be static. */
3308 static unsigned long previous_ibfd_e_flags = (unsigned long) -1;
3309
3310 if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour
3311 || bfd_get_flavour (obfd) != bfd_target_elf_flavour)
3312 return TRUE;
3313
3314 error = FALSE;
3315
3316 ibfd_mach = bfd_get_mach (ibfd);
3317 if (bfd_mach_sparc_64bit_p (ibfd_mach))
3318 {
3319 error = TRUE;
3320 (*_bfd_error_handler)
3321 (_("%B: compiled for a 64 bit system and target is 32 bit"), ibfd);
3322 }
3323 else if ((ibfd->flags & DYNAMIC) == 0)
3324 {
3325 if (bfd_get_mach (obfd) < ibfd_mach)
3326 bfd_set_arch_mach (obfd, bfd_arch_sparc, ibfd_mach);
3327 }
3328
3329 if (((elf_elfheader (ibfd)->e_flags & EF_SPARC_LEDATA)
3330 != previous_ibfd_e_flags)
3331 && previous_ibfd_e_flags != (unsigned long) -1)
3332 {
3333 (*_bfd_error_handler)
3334 (_("%B: linking little endian files with big endian files"), ibfd);
3335 error = TRUE;
3336 }
3337 previous_ibfd_e_flags = elf_elfheader (ibfd)->e_flags & EF_SPARC_LEDATA;
3338
3339 if (error)
3340 {
3341 bfd_set_error (bfd_error_bad_value);
3342 return FALSE;
3343 }
3344
3345 return TRUE;
3346 }
3347 \f
3348 /* Set the right machine number. */
3349
3350 static bfd_boolean
3351 elf32_sparc_object_p (abfd)
3352 bfd *abfd;
3353 {
3354 if (elf_elfheader (abfd)->e_machine == EM_SPARC32PLUS)
3355 {
3356 if (elf_elfheader (abfd)->e_flags & EF_SPARC_SUN_US3)
3357 return bfd_default_set_arch_mach (abfd, bfd_arch_sparc,
3358 bfd_mach_sparc_v8plusb);
3359 else if (elf_elfheader (abfd)->e_flags & EF_SPARC_SUN_US1)
3360 return bfd_default_set_arch_mach (abfd, bfd_arch_sparc,
3361 bfd_mach_sparc_v8plusa);
3362 else if (elf_elfheader (abfd)->e_flags & EF_SPARC_32PLUS)
3363 return bfd_default_set_arch_mach (abfd, bfd_arch_sparc,
3364 bfd_mach_sparc_v8plus);
3365 else
3366 return FALSE;
3367 }
3368 else if (elf_elfheader (abfd)->e_flags & EF_SPARC_LEDATA)
3369 return bfd_default_set_arch_mach (abfd, bfd_arch_sparc,
3370 bfd_mach_sparc_sparclite_le);
3371 else
3372 return bfd_default_set_arch_mach (abfd, bfd_arch_sparc, bfd_mach_sparc);
3373 }
3374
3375 /* The final processing done just before writing out the object file.
3376 We need to set the e_machine field appropriately. */
3377
3378 static void
3379 elf32_sparc_final_write_processing (abfd, linker)
3380 bfd *abfd;
3381 bfd_boolean linker ATTRIBUTE_UNUSED;
3382 {
3383 switch (bfd_get_mach (abfd))
3384 {
3385 case bfd_mach_sparc :
3386 case bfd_mach_sparc_sparclet :
3387 case bfd_mach_sparc_sparclite :
3388 break; /* nothing to do */
3389 case bfd_mach_sparc_v8plus :
3390 elf_elfheader (abfd)->e_machine = EM_SPARC32PLUS;
3391 elf_elfheader (abfd)->e_flags &=~ EF_SPARC_32PLUS_MASK;
3392 elf_elfheader (abfd)->e_flags |= EF_SPARC_32PLUS;
3393 break;
3394 case bfd_mach_sparc_v8plusa :
3395 elf_elfheader (abfd)->e_machine = EM_SPARC32PLUS;
3396 elf_elfheader (abfd)->e_flags &=~ EF_SPARC_32PLUS_MASK;
3397 elf_elfheader (abfd)->e_flags |= EF_SPARC_32PLUS | EF_SPARC_SUN_US1;
3398 break;
3399 case bfd_mach_sparc_v8plusb :
3400 elf_elfheader (abfd)->e_machine = EM_SPARC32PLUS;
3401 elf_elfheader (abfd)->e_flags &=~ EF_SPARC_32PLUS_MASK;
3402 elf_elfheader (abfd)->e_flags |= EF_SPARC_32PLUS | EF_SPARC_SUN_US1
3403 | EF_SPARC_SUN_US3;
3404 break;
3405 case bfd_mach_sparc_sparclite_le :
3406 elf_elfheader (abfd)->e_flags |= EF_SPARC_LEDATA;
3407 break;
3408 default :
3409 abort ();
3410 break;
3411 }
3412 }
3413
3414 static enum elf_reloc_type_class
3415 elf32_sparc_reloc_type_class (rela)
3416 const Elf_Internal_Rela *rela;
3417 {
3418 switch ((int) ELF32_R_TYPE (rela->r_info))
3419 {
3420 case R_SPARC_RELATIVE:
3421 return reloc_class_relative;
3422 case R_SPARC_JMP_SLOT:
3423 return reloc_class_plt;
3424 case R_SPARC_COPY:
3425 return reloc_class_copy;
3426 default:
3427 return reloc_class_normal;
3428 }
3429 }
3430
3431 /* Return address for Ith PLT stub in section PLT, for relocation REL
3432 or (bfd_vma) -1 if it should not be included. */
3433
3434 static bfd_vma
3435 elf32_sparc_plt_sym_val (bfd_vma i ATTRIBUTE_UNUSED,
3436 const asection *plt ATTRIBUTE_UNUSED,
3437 const arelent *rel)
3438 {
3439 return rel->address;
3440 }
3441 \f
3442 #define TARGET_BIG_SYM bfd_elf32_sparc_vec
3443 #define TARGET_BIG_NAME "elf32-sparc"
3444 #define ELF_ARCH bfd_arch_sparc
3445 #define ELF_MACHINE_CODE EM_SPARC
3446 #define ELF_MACHINE_ALT1 EM_SPARC32PLUS
3447 #define ELF_MAXPAGESIZE 0x10000
3448
3449 #define bfd_elf32_bfd_reloc_type_lookup elf32_sparc_reloc_type_lookup
3450 #define bfd_elf32_bfd_link_hash_table_create \
3451 elf32_sparc_link_hash_table_create
3452 #define bfd_elf32_bfd_relax_section elf32_sparc_relax_section
3453 #define bfd_elf32_new_section_hook elf32_sparc_new_section_hook
3454 #define elf_info_to_howto elf32_sparc_info_to_howto
3455 #define elf_backend_copy_indirect_symbol \
3456 elf32_sparc_copy_indirect_symbol
3457 #define elf_backend_create_dynamic_sections \
3458 elf32_sparc_create_dynamic_sections
3459 #define elf_backend_check_relocs elf32_sparc_check_relocs
3460 #define elf_backend_adjust_dynamic_symbol \
3461 elf32_sparc_adjust_dynamic_symbol
3462 #define elf_backend_omit_section_dynsym elf32_sparc_omit_section_dynsym
3463 #define elf_backend_size_dynamic_sections \
3464 elf32_sparc_size_dynamic_sections
3465 #define elf_backend_relocate_section elf32_sparc_relocate_section
3466 #define elf_backend_finish_dynamic_symbol \
3467 elf32_sparc_finish_dynamic_symbol
3468 #define elf_backend_finish_dynamic_sections \
3469 elf32_sparc_finish_dynamic_sections
3470 #define bfd_elf32_bfd_merge_private_bfd_data \
3471 elf32_sparc_merge_private_bfd_data
3472 #define bfd_elf32_mkobject elf32_sparc_mkobject
3473 #define elf_backend_object_p elf32_sparc_object_p
3474 #define elf_backend_final_write_processing \
3475 elf32_sparc_final_write_processing
3476 #define elf_backend_gc_mark_hook elf32_sparc_gc_mark_hook
3477 #define elf_backend_gc_sweep_hook elf32_sparc_gc_sweep_hook
3478 #define elf_backend_grok_psinfo elf32_sparc_grok_psinfo
3479 #define elf_backend_reloc_type_class elf32_sparc_reloc_type_class
3480 #define elf_backend_plt_sym_val elf32_sparc_plt_sym_val
3481
3482 #define elf_backend_can_gc_sections 1
3483 #define elf_backend_can_refcount 1
3484 #define elf_backend_want_got_plt 0
3485 #define elf_backend_plt_readonly 0
3486 #define elf_backend_want_plt_sym 1
3487 #define elf_backend_got_header_size 4
3488 #define elf_backend_rela_normal 1
3489
3490 #include "elf32-target.h"
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