Commit | Line | Data |
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252b5132 | 1 | /* SPARC-specific support for 32-bit ELF |
f0abc2a1 AM |
2 | Copyright 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, |
3 | 2003 Free Software Foundation, Inc. | |
252b5132 RH |
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" | |
f7775d95 | 27 | #include "opcode/sparc.h" |
252b5132 RH |
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 *)); | |
b34976b6 | 33 | static bfd_boolean elf32_sparc_check_relocs |
252b5132 RH |
34 | PARAMS ((bfd *, struct bfd_link_info *, asection *, |
35 | const Elf_Internal_Rela *)); | |
b34976b6 | 36 | static bfd_boolean elf32_sparc_adjust_dynamic_symbol |
252b5132 | 37 | PARAMS ((struct bfd_link_info *, struct elf_link_hash_entry *)); |
b9734f35 JJ |
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)); | |
b34976b6 | 42 | static bfd_boolean elf32_sparc_size_dynamic_sections |
252b5132 | 43 | PARAMS ((bfd *, struct bfd_link_info *)); |
f0abc2a1 AM |
44 | static bfd_boolean elf32_sparc_new_section_hook |
45 | PARAMS ((bfd *, asection *)); | |
b34976b6 AM |
46 | static bfd_boolean elf32_sparc_relax_section |
47 | PARAMS ((bfd *, asection *, struct bfd_link_info *, bfd_boolean *)); | |
b9734f35 JJ |
48 | static bfd_vma dtpoff_base |
49 | PARAMS ((struct bfd_link_info *)); | |
50 | static bfd_vma tpoff | |
51 | PARAMS ((struct bfd_link_info *, bfd_vma)); | |
b34976b6 | 52 | static bfd_boolean elf32_sparc_relocate_section |
252b5132 RH |
53 | PARAMS ((bfd *, struct bfd_link_info *, bfd *, asection *, bfd_byte *, |
54 | Elf_Internal_Rela *, Elf_Internal_Sym *, asection **)); | |
b34976b6 | 55 | static bfd_boolean elf32_sparc_finish_dynamic_symbol |
252b5132 RH |
56 | PARAMS ((bfd *, struct bfd_link_info *, struct elf_link_hash_entry *, |
57 | Elf_Internal_Sym *)); | |
b34976b6 | 58 | static bfd_boolean elf32_sparc_finish_dynamic_sections |
252b5132 | 59 | PARAMS ((bfd *, struct bfd_link_info *)); |
b34976b6 AM |
60 | static bfd_boolean elf32_sparc_merge_private_bfd_data |
61 | PARAMS ((bfd *, bfd *)); | |
b9734f35 JJ |
62 | static struct bfd_hash_entry *link_hash_newfunc |
63 | PARAMS ((struct bfd_hash_entry *, struct bfd_hash_table *, const char *)); | |
64 | static struct bfd_link_hash_table *elf32_sparc_link_hash_table_create | |
65 | PARAMS ((bfd *)); | |
66 | static bfd_boolean create_got_section PARAMS ((bfd *, | |
67 | struct bfd_link_info *)); | |
68 | static bfd_boolean elf32_sparc_create_dynamic_sections | |
69 | PARAMS ((bfd *, struct bfd_link_info *)); | |
70 | static void elf32_sparc_copy_indirect_symbol | |
71 | PARAMS ((struct elf_backend_data *, struct elf_link_hash_entry *, | |
72 | struct elf_link_hash_entry *)); | |
73 | static int elf32_sparc_tls_transition | |
74 | PARAMS ((struct bfd_link_info *, bfd *, int, int)); | |
75 | ||
76 | static bfd_boolean elf32_sparc_mkobject | |
77 | PARAMS ((bfd *)); | |
b34976b6 | 78 | static bfd_boolean elf32_sparc_object_p |
252b5132 RH |
79 | PARAMS ((bfd *)); |
80 | static void elf32_sparc_final_write_processing | |
b34976b6 | 81 | PARAMS ((bfd *, bfd_boolean)); |
db6751f2 | 82 | static enum elf_reloc_type_class elf32_sparc_reloc_type_class |
f51e552e | 83 | PARAMS ((const Elf_Internal_Rela *)); |
917583ad | 84 | static asection * elf32_sparc_gc_mark_hook |
1e2f5b6e | 85 | PARAMS ((asection *, struct bfd_link_info *, Elf_Internal_Rela *, |
917583ad | 86 | struct elf_link_hash_entry *, Elf_Internal_Sym *)); |
b34976b6 | 87 | static bfd_boolean elf32_sparc_gc_sweep_hook |
917583ad NC |
88 | PARAMS ((bfd *, struct bfd_link_info *, asection *, |
89 | const Elf_Internal_Rela *)); | |
252b5132 RH |
90 | \f |
91 | /* The relocation "howto" table. */ | |
92 | ||
93 | static bfd_reloc_status_type sparc_elf_notsupported_reloc | |
94 | PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **)); | |
95 | static bfd_reloc_status_type sparc_elf_wdisp16_reloc | |
96 | PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **)); | |
b9734f35 JJ |
97 | static bfd_reloc_status_type sparc_elf_hix22_reloc |
98 | PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **)); | |
99 | static bfd_reloc_status_type sparc_elf_lox10_reloc | |
100 | PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **)); | |
252b5132 RH |
101 | |
102 | reloc_howto_type _bfd_sparc_elf_howto_table[] = | |
103 | { | |
b34976b6 AM |
104 | HOWTO(R_SPARC_NONE, 0,0, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_NONE", FALSE,0,0x00000000,TRUE), |
105 | HOWTO(R_SPARC_8, 0,0, 8,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_8", FALSE,0,0x000000ff,TRUE), | |
106 | HOWTO(R_SPARC_16, 0,1,16,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_16", FALSE,0,0x0000ffff,TRUE), | |
107 | HOWTO(R_SPARC_32, 0,2,32,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_32", FALSE,0,0xffffffff,TRUE), | |
108 | HOWTO(R_SPARC_DISP8, 0,0, 8,TRUE, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_DISP8", FALSE,0,0x000000ff,TRUE), | |
109 | HOWTO(R_SPARC_DISP16, 0,1,16,TRUE, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_DISP16", FALSE,0,0x0000ffff,TRUE), | |
110 | HOWTO(R_SPARC_DISP32, 0,2,32,TRUE, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_DISP32", FALSE,0,0xffffffff,TRUE), | |
111 | HOWTO(R_SPARC_WDISP30, 2,2,30,TRUE, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_WDISP30", FALSE,0,0x3fffffff,TRUE), | |
112 | HOWTO(R_SPARC_WDISP22, 2,2,22,TRUE, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_WDISP22", FALSE,0,0x003fffff,TRUE), | |
113 | HOWTO(R_SPARC_HI22, 10,2,22,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_HI22", FALSE,0,0x003fffff,TRUE), | |
114 | HOWTO(R_SPARC_22, 0,2,22,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_22", FALSE,0,0x003fffff,TRUE), | |
115 | HOWTO(R_SPARC_13, 0,2,13,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_13", FALSE,0,0x00001fff,TRUE), | |
116 | HOWTO(R_SPARC_LO10, 0,2,10,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_LO10", FALSE,0,0x000003ff,TRUE), | |
117 | HOWTO(R_SPARC_GOT10, 0,2,10,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_GOT10", FALSE,0,0x000003ff,TRUE), | |
118 | HOWTO(R_SPARC_GOT13, 0,2,13,FALSE,0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_GOT13", FALSE,0,0x00001fff,TRUE), | |
119 | HOWTO(R_SPARC_GOT22, 10,2,22,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_GOT22", FALSE,0,0x003fffff,TRUE), | |
120 | HOWTO(R_SPARC_PC10, 0,2,10,TRUE, 0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_PC10", FALSE,0,0x000003ff,TRUE), | |
121 | HOWTO(R_SPARC_PC22, 10,2,22,TRUE, 0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_PC22", FALSE,0,0x003fffff,TRUE), | |
122 | HOWTO(R_SPARC_WPLT30, 2,2,30,TRUE, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_WPLT30", FALSE,0,0x3fffffff,TRUE), | |
123 | HOWTO(R_SPARC_COPY, 0,0,00,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_COPY", FALSE,0,0x00000000,TRUE), | |
124 | 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), | |
125 | 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), | |
126 | HOWTO(R_SPARC_RELATIVE, 0,0,00,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_RELATIVE",FALSE,0,0x00000000,TRUE), | |
127 | HOWTO(R_SPARC_UA32, 0,2,32,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_UA32", FALSE,0,0xffffffff,TRUE), | |
128 | HOWTO(R_SPARC_PLT32, 0,0,00,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_PLT32", FALSE,0,0xffffffff,TRUE), | |
129 | HOWTO(R_SPARC_HIPLT22, 0,0,00,FALSE,0,complain_overflow_dont, sparc_elf_notsupported_reloc, "R_SPARC_HIPLT22", FALSE,0,0x00000000,TRUE), | |
130 | HOWTO(R_SPARC_LOPLT10, 0,0,00,FALSE,0,complain_overflow_dont, sparc_elf_notsupported_reloc, "R_SPARC_LOPLT10", FALSE,0,0x00000000,TRUE), | |
131 | HOWTO(R_SPARC_PCPLT32, 0,0,00,FALSE,0,complain_overflow_dont, sparc_elf_notsupported_reloc, "R_SPARC_PCPLT32", FALSE,0,0x00000000,TRUE), | |
132 | HOWTO(R_SPARC_PCPLT22, 0,0,00,FALSE,0,complain_overflow_dont, sparc_elf_notsupported_reloc, "R_SPARC_PCPLT22", FALSE,0,0x00000000,TRUE), | |
133 | HOWTO(R_SPARC_PCPLT10, 0,0,00,FALSE,0,complain_overflow_dont, sparc_elf_notsupported_reloc, "R_SPARC_PCPLT10", FALSE,0,0x00000000,TRUE), | |
134 | HOWTO(R_SPARC_10, 0,2,10,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_10", FALSE,0,0x000003ff,TRUE), | |
135 | HOWTO(R_SPARC_11, 0,2,11,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_11", FALSE,0,0x000007ff,TRUE), | |
252b5132 RH |
136 | /* These are for sparc64 in a 64 bit environment. |
137 | Values need to be here because the table is indexed by reloc number. */ | |
b34976b6 AM |
138 | HOWTO(R_SPARC_64, 0,0,00,FALSE,0,complain_overflow_dont, sparc_elf_notsupported_reloc, "R_SPARC_64", FALSE,0,0x00000000,TRUE), |
139 | HOWTO(R_SPARC_OLO10, 0,0,00,FALSE,0,complain_overflow_dont, sparc_elf_notsupported_reloc, "R_SPARC_OLO10", FALSE,0,0x00000000,TRUE), | |
140 | HOWTO(R_SPARC_HH22, 0,0,00,FALSE,0,complain_overflow_dont, sparc_elf_notsupported_reloc, "R_SPARC_HH22", FALSE,0,0x00000000,TRUE), | |
141 | HOWTO(R_SPARC_HM10, 0,0,00,FALSE,0,complain_overflow_dont, sparc_elf_notsupported_reloc, "R_SPARC_HM10", FALSE,0,0x00000000,TRUE), | |
142 | HOWTO(R_SPARC_LM22, 0,0,00,FALSE,0,complain_overflow_dont, sparc_elf_notsupported_reloc, "R_SPARC_LM22", FALSE,0,0x00000000,TRUE), | |
143 | 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), | |
144 | 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), | |
145 | 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), | |
252b5132 RH |
146 | /* End sparc64 in 64 bit environment values. |
147 | The following are for sparc64 in a 32 bit environment. */ | |
b34976b6 AM |
148 | HOWTO(R_SPARC_WDISP16, 2,2,16,TRUE, 0,complain_overflow_signed, sparc_elf_wdisp16_reloc,"R_SPARC_WDISP16", FALSE,0,0x00000000,TRUE), |
149 | HOWTO(R_SPARC_WDISP19, 2,2,19,TRUE, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_WDISP19", FALSE,0,0x0007ffff,TRUE), | |
150 | 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), | |
151 | HOWTO(R_SPARC_7, 0,2, 7,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_7", FALSE,0,0x0000007f,TRUE), | |
152 | HOWTO(R_SPARC_5, 0,2, 5,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_5", FALSE,0,0x0000001f,TRUE), | |
153 | HOWTO(R_SPARC_6, 0,2, 6,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_6", FALSE,0,0x0000003f,TRUE), | |
154 | HOWTO(R_SPARC_NONE, 0,0, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_NONE", FALSE,0,0x00000000,TRUE), | |
155 | HOWTO(R_SPARC_NONE, 0,0, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_NONE", FALSE,0,0x00000000,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_UA64, 0,0, 0,FALSE,0,complain_overflow_dont, sparc_elf_notsupported_reloc, "R_SPARC_UA64", FALSE,0,0x00000000,TRUE), | |
163 | HOWTO(R_SPARC_UA16, 0,1,16,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_UA16", FALSE,0,0x0000ffff,TRUE), | |
b9734f35 JJ |
164 | 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), |
165 | 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), | |
166 | 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), | |
167 | 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), | |
168 | 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), | |
169 | 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), | |
170 | 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), | |
171 | 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), | |
172 | 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), | |
173 | 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), | |
174 | 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), | |
175 | 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), | |
176 | 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), | |
177 | 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), | |
178 | 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), | |
179 | 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), | |
180 | 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), | |
181 | 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), | |
182 | 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), | |
183 | 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), | |
184 | 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), | |
185 | 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), | |
186 | 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), | |
187 | HOWTO(R_SPARC_TLS_TPOFF64,0,0, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_TPOFF64",FALSE,0,0x00000000,TRUE) | |
252b5132 RH |
188 | }; |
189 | static reloc_howto_type elf32_sparc_vtinherit_howto = | |
b34976b6 | 190 | HOWTO (R_SPARC_GNU_VTINHERIT, 0,2,0,FALSE,0,complain_overflow_dont, NULL, "R_SPARC_GNU_VTINHERIT", FALSE,0, 0, FALSE); |
252b5132 | 191 | static reloc_howto_type elf32_sparc_vtentry_howto = |
b34976b6 | 192 | 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); |
b9734f35 JJ |
193 | static reloc_howto_type elf32_sparc_rev32_howto = |
194 | HOWTO(R_SPARC_REV32, 0,2,32,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_REV32", FALSE,0,0xffffffff,TRUE); | |
252b5132 | 195 | |
252b5132 RH |
196 | struct elf_reloc_map { |
197 | bfd_reloc_code_real_type bfd_reloc_val; | |
198 | unsigned char elf_reloc_val; | |
199 | }; | |
200 | ||
dc810e39 | 201 | static const struct elf_reloc_map sparc_reloc_map[] = |
252b5132 RH |
202 | { |
203 | { BFD_RELOC_NONE, R_SPARC_NONE, }, | |
204 | { BFD_RELOC_16, R_SPARC_16, }, | |
bd5e6e7e | 205 | { BFD_RELOC_16_PCREL, R_SPARC_DISP16 }, |
252b5132 RH |
206 | { BFD_RELOC_8, R_SPARC_8 }, |
207 | { BFD_RELOC_8_PCREL, R_SPARC_DISP8 }, | |
208 | { BFD_RELOC_CTOR, R_SPARC_32 }, | |
209 | { BFD_RELOC_32, R_SPARC_32 }, | |
210 | { BFD_RELOC_32_PCREL, R_SPARC_DISP32 }, | |
211 | { BFD_RELOC_HI22, R_SPARC_HI22 }, | |
212 | { BFD_RELOC_LO10, R_SPARC_LO10, }, | |
213 | { BFD_RELOC_32_PCREL_S2, R_SPARC_WDISP30 }, | |
bd5e6e7e | 214 | { BFD_RELOC_SPARC_PLT32, R_SPARC_PLT32 }, |
252b5132 RH |
215 | { BFD_RELOC_SPARC22, R_SPARC_22 }, |
216 | { BFD_RELOC_SPARC13, R_SPARC_13 }, | |
217 | { BFD_RELOC_SPARC_GOT10, R_SPARC_GOT10 }, | |
218 | { BFD_RELOC_SPARC_GOT13, R_SPARC_GOT13 }, | |
219 | { BFD_RELOC_SPARC_GOT22, R_SPARC_GOT22 }, | |
220 | { BFD_RELOC_SPARC_PC10, R_SPARC_PC10 }, | |
221 | { BFD_RELOC_SPARC_PC22, R_SPARC_PC22 }, | |
222 | { BFD_RELOC_SPARC_WPLT30, R_SPARC_WPLT30 }, | |
223 | { BFD_RELOC_SPARC_COPY, R_SPARC_COPY }, | |
224 | { BFD_RELOC_SPARC_GLOB_DAT, R_SPARC_GLOB_DAT }, | |
225 | { BFD_RELOC_SPARC_JMP_SLOT, R_SPARC_JMP_SLOT }, | |
226 | { BFD_RELOC_SPARC_RELATIVE, R_SPARC_RELATIVE }, | |
227 | { BFD_RELOC_SPARC_WDISP22, R_SPARC_WDISP22 }, | |
0f2712ed NC |
228 | { BFD_RELOC_SPARC_UA16, R_SPARC_UA16 }, |
229 | { BFD_RELOC_SPARC_UA32, R_SPARC_UA32 }, | |
230 | { BFD_RELOC_SPARC_UA64, R_SPARC_UA64 }, | |
231 | { BFD_RELOC_SPARC_10, R_SPARC_10 }, | |
232 | { BFD_RELOC_SPARC_11, R_SPARC_11 }, | |
233 | { BFD_RELOC_SPARC_64, R_SPARC_64 }, | |
234 | { BFD_RELOC_SPARC_OLO10, R_SPARC_OLO10 }, | |
235 | { BFD_RELOC_SPARC_HH22, R_SPARC_HH22 }, | |
236 | { BFD_RELOC_SPARC_HM10, R_SPARC_HM10 }, | |
237 | { BFD_RELOC_SPARC_LM22, R_SPARC_LM22 }, | |
238 | { BFD_RELOC_SPARC_PC_HH22, R_SPARC_PC_HH22 }, | |
239 | { BFD_RELOC_SPARC_PC_HM10, R_SPARC_PC_HM10 }, | |
240 | { BFD_RELOC_SPARC_PC_LM22, R_SPARC_PC_LM22 }, | |
241 | { BFD_RELOC_SPARC_WDISP16, R_SPARC_WDISP16 }, | |
242 | { BFD_RELOC_SPARC_WDISP19, R_SPARC_WDISP19 }, | |
243 | { BFD_RELOC_SPARC_7, R_SPARC_7 }, | |
244 | { BFD_RELOC_SPARC_5, R_SPARC_5 }, | |
245 | { BFD_RELOC_SPARC_6, R_SPARC_6 }, | |
b9734f35 JJ |
246 | { BFD_RELOC_SPARC_TLS_GD_HI22, R_SPARC_TLS_GD_HI22 }, |
247 | { BFD_RELOC_SPARC_TLS_GD_LO10, R_SPARC_TLS_GD_LO10 }, | |
248 | { BFD_RELOC_SPARC_TLS_GD_ADD, R_SPARC_TLS_GD_ADD }, | |
249 | { BFD_RELOC_SPARC_TLS_GD_CALL, R_SPARC_TLS_GD_CALL }, | |
250 | { BFD_RELOC_SPARC_TLS_LDM_HI22, R_SPARC_TLS_LDM_HI22 }, | |
251 | { BFD_RELOC_SPARC_TLS_LDM_LO10, R_SPARC_TLS_LDM_LO10 }, | |
252 | { BFD_RELOC_SPARC_TLS_LDM_ADD, R_SPARC_TLS_LDM_ADD }, | |
253 | { BFD_RELOC_SPARC_TLS_LDM_CALL, R_SPARC_TLS_LDM_CALL }, | |
254 | { BFD_RELOC_SPARC_TLS_LDO_HIX22, R_SPARC_TLS_LDO_HIX22 }, | |
255 | { BFD_RELOC_SPARC_TLS_LDO_LOX10, R_SPARC_TLS_LDO_LOX10 }, | |
256 | { BFD_RELOC_SPARC_TLS_LDO_ADD, R_SPARC_TLS_LDO_ADD }, | |
257 | { BFD_RELOC_SPARC_TLS_IE_HI22, R_SPARC_TLS_IE_HI22 }, | |
258 | { BFD_RELOC_SPARC_TLS_IE_LO10, R_SPARC_TLS_IE_LO10 }, | |
259 | { BFD_RELOC_SPARC_TLS_IE_LD, R_SPARC_TLS_IE_LD }, | |
260 | { BFD_RELOC_SPARC_TLS_IE_LDX, R_SPARC_TLS_IE_LDX }, | |
261 | { BFD_RELOC_SPARC_TLS_IE_ADD, R_SPARC_TLS_IE_ADD }, | |
262 | { BFD_RELOC_SPARC_TLS_LE_HIX22, R_SPARC_TLS_LE_HIX22 }, | |
263 | { BFD_RELOC_SPARC_TLS_LE_LOX10, R_SPARC_TLS_LE_LOX10 }, | |
264 | { BFD_RELOC_SPARC_TLS_DTPMOD32, R_SPARC_TLS_DTPMOD32 }, | |
265 | { BFD_RELOC_SPARC_TLS_DTPMOD64, R_SPARC_TLS_DTPMOD64 }, | |
266 | { BFD_RELOC_SPARC_TLS_DTPOFF32, R_SPARC_TLS_DTPOFF32 }, | |
267 | { BFD_RELOC_SPARC_TLS_DTPOFF64, R_SPARC_TLS_DTPOFF64 }, | |
268 | { BFD_RELOC_SPARC_TLS_TPOFF32, R_SPARC_TLS_TPOFF32 }, | |
269 | { BFD_RELOC_SPARC_TLS_TPOFF64, R_SPARC_TLS_TPOFF64 }, | |
0f2712ed NC |
270 | { BFD_RELOC_VTABLE_INHERIT, R_SPARC_GNU_VTINHERIT }, |
271 | { BFD_RELOC_VTABLE_ENTRY, R_SPARC_GNU_VTENTRY }, | |
b9734f35 | 272 | { BFD_RELOC_SPARC_REV32, R_SPARC_REV32 } |
252b5132 RH |
273 | }; |
274 | ||
275 | static reloc_howto_type * | |
276 | elf32_sparc_reloc_type_lookup (abfd, code) | |
5f771d47 | 277 | bfd *abfd ATTRIBUTE_UNUSED; |
252b5132 RH |
278 | bfd_reloc_code_real_type code; |
279 | { | |
280 | unsigned int i; | |
435b1e90 | 281 | |
252b5132 RH |
282 | switch (code) |
283 | { | |
284 | case BFD_RELOC_VTABLE_INHERIT: | |
285 | return &elf32_sparc_vtinherit_howto; | |
286 | ||
287 | case BFD_RELOC_VTABLE_ENTRY: | |
288 | return &elf32_sparc_vtentry_howto; | |
289 | ||
b9734f35 JJ |
290 | case BFD_RELOC_SPARC_REV32: |
291 | return &elf32_sparc_rev32_howto; | |
292 | ||
252b5132 RH |
293 | default: |
294 | for (i = 0; i < sizeof (sparc_reloc_map) / sizeof (struct elf_reloc_map); i++) | |
295 | { | |
296 | if (sparc_reloc_map[i].bfd_reloc_val == code) | |
297 | return &_bfd_sparc_elf_howto_table[(int) sparc_reloc_map[i].elf_reloc_val]; | |
298 | } | |
299 | } | |
300 | bfd_set_error (bfd_error_bad_value); | |
301 | return NULL; | |
302 | } | |
303 | ||
304 | /* We need to use ELF32_R_TYPE so we have our own copy of this function, | |
305 | and elf64-sparc.c has its own copy. */ | |
306 | ||
307 | static void | |
308 | elf32_sparc_info_to_howto (abfd, cache_ptr, dst) | |
5f771d47 | 309 | bfd *abfd ATTRIBUTE_UNUSED; |
252b5132 RH |
310 | arelent *cache_ptr; |
311 | Elf_Internal_Rela *dst; | |
312 | { | |
60dac299 RH |
313 | switch (ELF32_R_TYPE(dst->r_info)) |
314 | { | |
315 | case R_SPARC_GNU_VTINHERIT: | |
316 | cache_ptr->howto = &elf32_sparc_vtinherit_howto; | |
317 | break; | |
318 | ||
319 | case R_SPARC_GNU_VTENTRY: | |
320 | cache_ptr->howto = &elf32_sparc_vtentry_howto; | |
321 | break; | |
322 | ||
b9734f35 JJ |
323 | case R_SPARC_REV32: |
324 | cache_ptr->howto = &elf32_sparc_rev32_howto; | |
325 | break; | |
326 | ||
60dac299 RH |
327 | default: |
328 | BFD_ASSERT (ELF32_R_TYPE(dst->r_info) < (unsigned int) R_SPARC_max_std); | |
329 | cache_ptr->howto = &_bfd_sparc_elf_howto_table[ELF32_R_TYPE(dst->r_info)]; | |
330 | } | |
252b5132 RH |
331 | } |
332 | \f | |
333 | /* For unsupported relocs. */ | |
334 | ||
335 | static bfd_reloc_status_type | |
336 | sparc_elf_notsupported_reloc (abfd, | |
337 | reloc_entry, | |
338 | symbol, | |
339 | data, | |
340 | input_section, | |
341 | output_bfd, | |
342 | error_message) | |
5f771d47 ILT |
343 | bfd *abfd ATTRIBUTE_UNUSED; |
344 | arelent *reloc_entry ATTRIBUTE_UNUSED; | |
345 | asymbol *symbol ATTRIBUTE_UNUSED; | |
346 | PTR data ATTRIBUTE_UNUSED; | |
347 | asection *input_section ATTRIBUTE_UNUSED; | |
348 | bfd *output_bfd ATTRIBUTE_UNUSED; | |
349 | char **error_message ATTRIBUTE_UNUSED; | |
252b5132 RH |
350 | { |
351 | return bfd_reloc_notsupported; | |
352 | } | |
353 | ||
354 | /* Handle the WDISP16 reloc. */ | |
355 | ||
356 | static bfd_reloc_status_type | |
357 | sparc_elf_wdisp16_reloc (abfd, | |
358 | reloc_entry, | |
359 | symbol, | |
360 | data, | |
361 | input_section, | |
362 | output_bfd, | |
363 | error_message) | |
364 | bfd *abfd; | |
365 | arelent *reloc_entry; | |
366 | asymbol *symbol; | |
367 | PTR data; | |
368 | asection *input_section; | |
369 | bfd *output_bfd; | |
5f771d47 | 370 | char **error_message ATTRIBUTE_UNUSED; |
252b5132 RH |
371 | { |
372 | bfd_vma relocation; | |
373 | bfd_vma x; | |
374 | ||
375 | if (output_bfd != (bfd *) NULL | |
376 | && (symbol->flags & BSF_SECTION_SYM) == 0 | |
377 | && (! reloc_entry->howto->partial_inplace | |
378 | || reloc_entry->addend == 0)) | |
379 | { | |
380 | reloc_entry->address += input_section->output_offset; | |
381 | return bfd_reloc_ok; | |
382 | } | |
383 | ||
384 | if (output_bfd != NULL) | |
385 | return bfd_reloc_continue; | |
386 | ||
387 | if (reloc_entry->address > input_section->_cooked_size) | |
388 | return bfd_reloc_outofrange; | |
389 | ||
390 | relocation = (symbol->value | |
391 | + symbol->section->output_section->vma | |
392 | + symbol->section->output_offset); | |
393 | relocation += reloc_entry->addend; | |
394 | relocation -= (input_section->output_section->vma | |
395 | + input_section->output_offset); | |
396 | relocation -= reloc_entry->address; | |
397 | ||
398 | x = bfd_get_32 (abfd, (bfd_byte *) data + reloc_entry->address); | |
399 | x |= ((((relocation >> 2) & 0xc000) << 6) | |
400 | | ((relocation >> 2) & 0x3fff)); | |
401 | bfd_put_32 (abfd, x, (bfd_byte *) data + reloc_entry->address); | |
402 | ||
403 | if ((bfd_signed_vma) relocation < - 0x40000 | |
404 | || (bfd_signed_vma) relocation > 0x3ffff) | |
405 | return bfd_reloc_overflow; | |
406 | else | |
407 | return bfd_reloc_ok; | |
408 | } | |
b9734f35 JJ |
409 | |
410 | /* Handle the HIX22 reloc. */ | |
411 | ||
412 | static bfd_reloc_status_type | |
413 | sparc_elf_hix22_reloc (abfd, | |
414 | reloc_entry, | |
415 | symbol, | |
416 | data, | |
417 | input_section, | |
418 | output_bfd, | |
419 | error_message) | |
420 | bfd *abfd; | |
421 | arelent *reloc_entry; | |
422 | asymbol *symbol; | |
423 | PTR data; | |
424 | asection *input_section; | |
425 | bfd *output_bfd; | |
426 | char **error_message ATTRIBUTE_UNUSED; | |
427 | { | |
428 | bfd_vma relocation; | |
429 | bfd_vma insn; | |
430 | ||
431 | if (output_bfd != (bfd *) NULL | |
432 | && (symbol->flags & BSF_SECTION_SYM) == 0) | |
433 | { | |
434 | reloc_entry->address += input_section->output_offset; | |
435 | return bfd_reloc_ok; | |
436 | } | |
437 | ||
438 | if (output_bfd != NULL) | |
439 | return bfd_reloc_continue; | |
440 | ||
441 | if (reloc_entry->address > input_section->_cooked_size) | |
442 | return bfd_reloc_outofrange; | |
443 | ||
444 | relocation = (symbol->value | |
445 | + symbol->section->output_section->vma | |
446 | + symbol->section->output_offset); | |
447 | relocation += reloc_entry->addend; | |
448 | insn = bfd_get_32 (abfd, (bfd_byte *) data + reloc_entry->address); | |
449 | ||
450 | insn = (insn &~ (bfd_vma) 0x3fffff) | (((~relocation) >> 10) & 0x3fffff); | |
451 | bfd_put_32 (abfd, insn, (bfd_byte *) data + reloc_entry->address); | |
452 | ||
453 | return bfd_reloc_ok; | |
454 | } | |
455 | ||
456 | /* Handle the LOX10 reloc. */ | |
457 | ||
458 | static bfd_reloc_status_type | |
459 | sparc_elf_lox10_reloc (abfd, | |
460 | reloc_entry, | |
461 | symbol, | |
462 | data, | |
463 | input_section, | |
464 | output_bfd, | |
465 | error_message) | |
466 | bfd *abfd; | |
467 | arelent *reloc_entry; | |
468 | asymbol *symbol; | |
469 | PTR data; | |
470 | asection *input_section; | |
471 | bfd *output_bfd; | |
472 | char **error_message ATTRIBUTE_UNUSED; | |
473 | { | |
474 | bfd_vma relocation; | |
475 | bfd_vma insn; | |
476 | ||
477 | if (output_bfd != (bfd *) NULL | |
478 | && (symbol->flags & BSF_SECTION_SYM) == 0) | |
479 | { | |
480 | reloc_entry->address += input_section->output_offset; | |
481 | return bfd_reloc_ok; | |
482 | } | |
483 | ||
484 | if (output_bfd != NULL) | |
485 | return bfd_reloc_continue; | |
486 | ||
487 | if (reloc_entry->address > input_section->_cooked_size) | |
488 | return bfd_reloc_outofrange; | |
489 | ||
490 | relocation = (symbol->value | |
491 | + symbol->section->output_section->vma | |
492 | + symbol->section->output_offset); | |
493 | relocation += reloc_entry->addend; | |
494 | insn = bfd_get_32 (abfd, (bfd_byte *) data + reloc_entry->address); | |
495 | ||
496 | insn = (insn &~ (bfd_vma) 0x1fff) | 0x1c00 | (relocation & 0x3ff); | |
497 | bfd_put_32 (abfd, insn, (bfd_byte *) data + reloc_entry->address); | |
498 | ||
499 | return bfd_reloc_ok; | |
500 | } | |
252b5132 RH |
501 | \f |
502 | /* Functions for the SPARC ELF linker. */ | |
503 | ||
504 | /* The name of the dynamic interpreter. This is put in the .interp | |
505 | section. */ | |
506 | ||
507 | #define ELF_DYNAMIC_INTERPRETER "/usr/lib/ld.so.1" | |
508 | ||
509 | /* The nop opcode we use. */ | |
510 | ||
511 | #define SPARC_NOP 0x01000000 | |
512 | ||
513 | /* The size in bytes of an entry in the procedure linkage table. */ | |
514 | ||
515 | #define PLT_ENTRY_SIZE 12 | |
516 | ||
517 | /* The first four entries in a procedure linkage table are reserved, | |
518 | and the initial contents are unimportant (we zero them out). | |
519 | Subsequent entries look like this. See the SVR4 ABI SPARC | |
520 | supplement to see how this works. */ | |
521 | ||
522 | /* sethi %hi(.-.plt0),%g1. We fill in the address later. */ | |
523 | #define PLT_ENTRY_WORD0 0x03000000 | |
524 | /* b,a .plt0. We fill in the offset later. */ | |
525 | #define PLT_ENTRY_WORD1 0x30800000 | |
526 | /* nop. */ | |
527 | #define PLT_ENTRY_WORD2 SPARC_NOP | |
528 | ||
b9734f35 JJ |
529 | /* The SPARC linker needs to keep track of the number of relocs that it |
530 | decides to copy as dynamic relocs in check_relocs for each symbol. | |
531 | This is so that it can later discard them if they are found to be | |
532 | unnecessary. We store the information in a field extending the | |
533 | regular ELF linker hash table. */ | |
534 | ||
535 | struct elf32_sparc_dyn_relocs | |
536 | { | |
537 | struct elf32_sparc_dyn_relocs *next; | |
538 | ||
539 | /* The input section of the reloc. */ | |
540 | asection *sec; | |
541 | ||
542 | /* Total number of relocs copied for the input section. */ | |
543 | bfd_size_type count; | |
544 | ||
545 | /* Number of pc-relative relocs copied for the input section. */ | |
546 | bfd_size_type pc_count; | |
547 | }; | |
548 | ||
549 | /* SPARC ELF linker hash entry. */ | |
550 | ||
551 | struct elf32_sparc_link_hash_entry | |
552 | { | |
553 | struct elf_link_hash_entry elf; | |
554 | ||
555 | /* Track dynamic relocs copied for this symbol. */ | |
556 | struct elf32_sparc_dyn_relocs *dyn_relocs; | |
557 | ||
558 | #define GOT_UNKNOWN 0 | |
559 | #define GOT_NORMAL 1 | |
560 | #define GOT_TLS_GD 2 | |
561 | #define GOT_TLS_IE 3 | |
562 | unsigned char tls_type; | |
563 | }; | |
564 | ||
565 | #define elf32_sparc_hash_entry(ent) ((struct elf32_sparc_link_hash_entry *)(ent)) | |
566 | ||
567 | struct elf32_sparc_obj_tdata | |
568 | { | |
569 | struct elf_obj_tdata root; | |
570 | ||
571 | /* tls_type for each local got entry. */ | |
572 | char *local_got_tls_type; | |
573 | ||
574 | /* TRUE if TLS GD relocs has been seen for this object. */ | |
575 | bfd_boolean has_tlsgd; | |
576 | }; | |
577 | ||
578 | #define elf32_sparc_tdata(abfd) \ | |
579 | ((struct elf32_sparc_obj_tdata *) (abfd)->tdata.any) | |
580 | ||
581 | #define elf32_sparc_local_got_tls_type(abfd) \ | |
582 | (elf32_sparc_tdata (abfd)->local_got_tls_type) | |
583 | ||
584 | static bfd_boolean | |
585 | elf32_sparc_mkobject (abfd) | |
586 | bfd *abfd; | |
587 | { | |
588 | bfd_size_type amt = sizeof (struct elf32_sparc_obj_tdata); | |
589 | abfd->tdata.any = bfd_zalloc (abfd, amt); | |
590 | if (abfd->tdata.any == NULL) | |
591 | return FALSE; | |
592 | return TRUE; | |
593 | } | |
594 | ||
595 | /* SPARC ELF linker hash table. */ | |
596 | ||
597 | struct elf32_sparc_link_hash_table | |
598 | { | |
599 | struct elf_link_hash_table elf; | |
600 | ||
601 | /* Short-cuts to get to dynamic linker sections. */ | |
602 | asection *sgot; | |
603 | asection *srelgot; | |
604 | asection *splt; | |
605 | asection *srelplt; | |
606 | asection *sdynbss; | |
607 | asection *srelbss; | |
608 | ||
609 | union { | |
610 | bfd_signed_vma refcount; | |
611 | bfd_vma offset; | |
612 | } tls_ldm_got; | |
613 | ||
614 | /* Small local sym to section mapping cache. */ | |
615 | struct sym_sec_cache sym_sec; | |
616 | }; | |
617 | ||
618 | /* Get the SPARC ELF linker hash table from a link_info structure. */ | |
619 | ||
620 | #define elf32_sparc_hash_table(p) \ | |
621 | ((struct elf32_sparc_link_hash_table *) ((p)->hash)) | |
622 | ||
623 | /* Create an entry in an i386 ELF linker hash table. */ | |
624 | ||
625 | static struct bfd_hash_entry * | |
626 | link_hash_newfunc (entry, table, string) | |
627 | struct bfd_hash_entry *entry; | |
628 | struct bfd_hash_table *table; | |
629 | const char *string; | |
630 | { | |
631 | /* Allocate the structure if it has not already been allocated by a | |
632 | subclass. */ | |
633 | if (entry == NULL) | |
634 | { | |
635 | entry = bfd_hash_allocate (table, | |
636 | sizeof (struct elf32_sparc_link_hash_entry)); | |
637 | if (entry == NULL) | |
638 | return entry; | |
639 | } | |
640 | ||
641 | /* Call the allocation method of the superclass. */ | |
642 | entry = _bfd_elf_link_hash_newfunc (entry, table, string); | |
643 | if (entry != NULL) | |
644 | { | |
645 | struct elf32_sparc_link_hash_entry *eh; | |
646 | ||
647 | eh = (struct elf32_sparc_link_hash_entry *) entry; | |
648 | eh->dyn_relocs = NULL; | |
649 | eh->tls_type = GOT_UNKNOWN; | |
650 | } | |
651 | ||
652 | return entry; | |
653 | } | |
654 | ||
655 | /* Create a SPARC ELF linker hash table. */ | |
656 | ||
657 | static struct bfd_link_hash_table * | |
658 | elf32_sparc_link_hash_table_create (abfd) | |
659 | bfd *abfd; | |
660 | { | |
661 | struct elf32_sparc_link_hash_table *ret; | |
662 | bfd_size_type amt = sizeof (struct elf32_sparc_link_hash_table); | |
663 | ||
664 | ret = (struct elf32_sparc_link_hash_table *) bfd_malloc (amt); | |
665 | if (ret == NULL) | |
666 | return NULL; | |
667 | ||
668 | if (! _bfd_elf_link_hash_table_init (&ret->elf, abfd, link_hash_newfunc)) | |
669 | { | |
670 | free (ret); | |
671 | return NULL; | |
672 | } | |
673 | ||
674 | ret->sgot = NULL; | |
675 | ret->srelgot = NULL; | |
676 | ret->splt = NULL; | |
677 | ret->srelplt = NULL; | |
678 | ret->sdynbss = NULL; | |
679 | ret->srelbss = NULL; | |
680 | ret->tls_ldm_got.refcount = 0; | |
681 | ret->sym_sec.abfd = NULL; | |
682 | ||
683 | return &ret->elf.root; | |
684 | } | |
685 | ||
686 | /* Create .got and .rela.got sections in DYNOBJ, and set up | |
687 | shortcuts to them in our hash table. */ | |
688 | ||
689 | static bfd_boolean | |
690 | create_got_section (dynobj, info) | |
691 | bfd *dynobj; | |
692 | struct bfd_link_info *info; | |
693 | { | |
694 | struct elf32_sparc_link_hash_table *htab; | |
695 | ||
696 | if (! _bfd_elf_create_got_section (dynobj, info)) | |
697 | return FALSE; | |
698 | ||
699 | htab = elf32_sparc_hash_table (info); | |
700 | htab->sgot = bfd_get_section_by_name (dynobj, ".got"); | |
701 | if (!htab->sgot) | |
702 | abort (); | |
703 | ||
704 | htab->srelgot = bfd_make_section (dynobj, ".rela.got"); | |
705 | if (htab->srelgot == NULL | |
706 | || ! bfd_set_section_flags (dynobj, htab->srelgot, | |
707 | (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | |
708 | | SEC_IN_MEMORY | SEC_LINKER_CREATED | |
709 | | SEC_READONLY)) | |
710 | || ! bfd_set_section_alignment (dynobj, htab->srelgot, 2)) | |
711 | return FALSE; | |
712 | return TRUE; | |
713 | } | |
714 | ||
715 | /* Create .plt, .rela.plt, .got, .rela.got, .dynbss, and | |
716 | .rela.bss sections in DYNOBJ, and set up shortcuts to them in our | |
717 | hash table. */ | |
718 | ||
719 | static bfd_boolean | |
720 | elf32_sparc_create_dynamic_sections (dynobj, info) | |
721 | bfd *dynobj; | |
722 | struct bfd_link_info *info; | |
723 | { | |
724 | struct elf32_sparc_link_hash_table *htab; | |
725 | ||
726 | htab = elf32_sparc_hash_table (info); | |
727 | if (!htab->sgot && !create_got_section (dynobj, info)) | |
728 | return FALSE; | |
729 | ||
730 | if (!_bfd_elf_create_dynamic_sections (dynobj, info)) | |
731 | return FALSE; | |
732 | ||
733 | htab->splt = bfd_get_section_by_name (dynobj, ".plt"); | |
734 | htab->srelplt = bfd_get_section_by_name (dynobj, ".rela.plt"); | |
735 | htab->sdynbss = bfd_get_section_by_name (dynobj, ".dynbss"); | |
736 | if (!info->shared) | |
737 | htab->srelbss = bfd_get_section_by_name (dynobj, ".rela.bss"); | |
738 | ||
739 | if (!htab->splt || !htab->srelplt || !htab->sdynbss | |
740 | || (!info->shared && !htab->srelbss)) | |
741 | abort (); | |
742 | ||
743 | return TRUE; | |
744 | } | |
745 | ||
746 | /* Copy the extra info we tack onto an elf_link_hash_entry. */ | |
747 | ||
748 | static void | |
749 | elf32_sparc_copy_indirect_symbol (bed, dir, ind) | |
750 | struct elf_backend_data *bed; | |
751 | struct elf_link_hash_entry *dir, *ind; | |
752 | { | |
753 | struct elf32_sparc_link_hash_entry *edir, *eind; | |
754 | ||
755 | edir = (struct elf32_sparc_link_hash_entry *) dir; | |
756 | eind = (struct elf32_sparc_link_hash_entry *) ind; | |
757 | ||
758 | if (eind->dyn_relocs != NULL) | |
759 | { | |
760 | if (edir->dyn_relocs != NULL) | |
761 | { | |
762 | struct elf32_sparc_dyn_relocs **pp; | |
763 | struct elf32_sparc_dyn_relocs *p; | |
764 | ||
765 | if (ind->root.type == bfd_link_hash_indirect) | |
766 | abort (); | |
767 | ||
768 | /* Add reloc counts against the weak sym to the strong sym | |
769 | list. Merge any entries against the same section. */ | |
770 | for (pp = &eind->dyn_relocs; (p = *pp) != NULL; ) | |
771 | { | |
772 | struct elf32_sparc_dyn_relocs *q; | |
773 | ||
774 | for (q = edir->dyn_relocs; q != NULL; q = q->next) | |
775 | if (q->sec == p->sec) | |
776 | { | |
777 | q->pc_count += p->pc_count; | |
778 | q->count += p->count; | |
779 | *pp = p->next; | |
780 | break; | |
781 | } | |
782 | if (q == NULL) | |
783 | pp = &p->next; | |
784 | } | |
785 | *pp = edir->dyn_relocs; | |
786 | } | |
787 | ||
788 | edir->dyn_relocs = eind->dyn_relocs; | |
789 | eind->dyn_relocs = NULL; | |
790 | } | |
791 | ||
792 | if (ind->root.type == bfd_link_hash_indirect | |
793 | && dir->got.refcount <= 0) | |
794 | { | |
795 | edir->tls_type = eind->tls_type; | |
796 | eind->tls_type = GOT_UNKNOWN; | |
797 | } | |
798 | _bfd_elf_link_hash_copy_indirect (bed, dir, ind); | |
799 | } | |
800 | ||
801 | static int | |
802 | elf32_sparc_tls_transition (info, abfd, r_type, is_local) | |
803 | struct bfd_link_info *info; | |
804 | bfd *abfd; | |
805 | int r_type; | |
806 | int is_local; | |
807 | { | |
808 | if (r_type == R_SPARC_TLS_GD_HI22 | |
809 | && ! elf32_sparc_tdata (abfd)->has_tlsgd) | |
810 | r_type = R_SPARC_REV32; | |
811 | ||
812 | if (info->shared) | |
813 | return r_type; | |
814 | ||
815 | switch (r_type) | |
816 | { | |
817 | case R_SPARC_TLS_GD_HI22: | |
818 | if (is_local) | |
819 | return R_SPARC_TLS_LE_HIX22; | |
820 | return R_SPARC_TLS_IE_HI22; | |
821 | case R_SPARC_TLS_GD_LO10: | |
822 | if (is_local) | |
823 | return R_SPARC_TLS_LE_LOX10; | |
824 | return R_SPARC_TLS_IE_LO10; | |
825 | case R_SPARC_TLS_IE_HI22: | |
826 | if (is_local) | |
827 | return R_SPARC_TLS_LE_HIX22; | |
828 | return r_type; | |
829 | case R_SPARC_TLS_IE_LO10: | |
830 | if (is_local) | |
831 | return R_SPARC_TLS_LE_LOX10; | |
832 | return r_type; | |
833 | case R_SPARC_TLS_LDM_HI22: | |
834 | return R_SPARC_TLS_LE_HIX22; | |
835 | case R_SPARC_TLS_LDM_LO10: | |
836 | return R_SPARC_TLS_LE_LOX10; | |
837 | } | |
838 | ||
839 | return r_type; | |
840 | } | |
841 | ||
252b5132 RH |
842 | /* Look through the relocs for a section during the first phase, and |
843 | allocate space in the global offset table or procedure linkage | |
844 | table. */ | |
845 | ||
b34976b6 | 846 | static bfd_boolean |
252b5132 RH |
847 | elf32_sparc_check_relocs (abfd, info, sec, relocs) |
848 | bfd *abfd; | |
849 | struct bfd_link_info *info; | |
850 | asection *sec; | |
851 | const Elf_Internal_Rela *relocs; | |
852 | { | |
b9734f35 | 853 | struct elf32_sparc_link_hash_table *htab; |
252b5132 RH |
854 | Elf_Internal_Shdr *symtab_hdr; |
855 | struct elf_link_hash_entry **sym_hashes; | |
856 | bfd_vma *local_got_offsets; | |
857 | const Elf_Internal_Rela *rel; | |
858 | const Elf_Internal_Rela *rel_end; | |
252b5132 | 859 | asection *sreloc; |
b9734f35 | 860 | bfd_boolean checked_tlsgd = FALSE; |
252b5132 RH |
861 | |
862 | if (info->relocateable) | |
b34976b6 | 863 | return TRUE; |
252b5132 | 864 | |
b9734f35 | 865 | htab = elf32_sparc_hash_table (info); |
252b5132 RH |
866 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; |
867 | sym_hashes = elf_sym_hashes (abfd); | |
868 | local_got_offsets = elf_local_got_offsets (abfd); | |
869 | ||
252b5132 RH |
870 | sreloc = NULL; |
871 | ||
872 | rel_end = relocs + sec->reloc_count; | |
873 | for (rel = relocs; rel < rel_end; rel++) | |
874 | { | |
b9734f35 | 875 | unsigned int r_type; |
252b5132 RH |
876 | unsigned long r_symndx; |
877 | struct elf_link_hash_entry *h; | |
878 | ||
879 | r_symndx = ELF32_R_SYM (rel->r_info); | |
b9734f35 JJ |
880 | r_type = ELF32_R_TYPE (rel->r_info); |
881 | ||
882 | if (r_symndx >= NUM_SHDR_ENTRIES (symtab_hdr)) | |
883 | { | |
884 | (*_bfd_error_handler) (_("%s: bad symbol index: %d"), | |
885 | bfd_archive_filename (abfd), | |
886 | r_symndx); | |
887 | return FALSE; | |
888 | } | |
889 | ||
252b5132 RH |
890 | if (r_symndx < symtab_hdr->sh_info) |
891 | h = NULL; | |
892 | else | |
893 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
894 | ||
b9734f35 JJ |
895 | /* Compatibility with old R_SPARC_REV32 reloc conflicting |
896 | with R_SPARC_TLS_GD_HI22. */ | |
897 | if (! checked_tlsgd) | |
898 | switch (r_type) | |
899 | { | |
900 | case R_SPARC_TLS_GD_HI22: | |
901 | { | |
902 | const Elf_Internal_Rela *relt; | |
903 | ||
904 | for (relt = rel + 1; relt < rel_end; relt++) | |
905 | if (ELF32_R_TYPE (relt->r_info) == R_SPARC_TLS_GD_LO10 | |
906 | || ELF32_R_TYPE (relt->r_info) == R_SPARC_TLS_GD_ADD | |
907 | || ELF32_R_TYPE (relt->r_info) == R_SPARC_TLS_GD_CALL) | |
908 | break; | |
909 | checked_tlsgd = TRUE; | |
910 | elf32_sparc_tdata (abfd)->has_tlsgd = relt < rel_end; | |
911 | } | |
912 | break; | |
913 | case R_SPARC_TLS_GD_LO10: | |
914 | case R_SPARC_TLS_GD_ADD: | |
915 | case R_SPARC_TLS_GD_CALL: | |
916 | checked_tlsgd = TRUE; | |
917 | elf32_sparc_tdata (abfd)->has_tlsgd = TRUE; | |
918 | break; | |
919 | } | |
920 | ||
921 | r_type = elf32_sparc_tls_transition (info, abfd, r_type, h == NULL); | |
922 | switch (r_type) | |
252b5132 | 923 | { |
b9734f35 JJ |
924 | case R_SPARC_TLS_LDM_HI22: |
925 | case R_SPARC_TLS_LDM_LO10: | |
926 | htab->tls_ldm_got.refcount += 1; | |
927 | break; | |
928 | ||
929 | case R_SPARC_TLS_LE_HIX22: | |
930 | case R_SPARC_TLS_LE_LOX10: | |
931 | if (info->shared) | |
932 | goto r_sparc_plt32; | |
933 | break; | |
934 | ||
935 | case R_SPARC_TLS_IE_HI22: | |
936 | case R_SPARC_TLS_IE_LO10: | |
937 | if (info->shared) | |
938 | info->flags |= DF_STATIC_TLS; | |
939 | /* Fall through */ | |
940 | ||
252b5132 RH |
941 | case R_SPARC_GOT10: |
942 | case R_SPARC_GOT13: | |
943 | case R_SPARC_GOT22: | |
b9734f35 JJ |
944 | case R_SPARC_TLS_GD_HI22: |
945 | case R_SPARC_TLS_GD_LO10: | |
252b5132 | 946 | /* This symbol requires a global offset table entry. */ |
b9734f35 JJ |
947 | { |
948 | int tls_type, old_tls_type; | |
252b5132 | 949 | |
b9734f35 JJ |
950 | switch (r_type) |
951 | { | |
952 | default: | |
953 | case R_SPARC_GOT10: | |
954 | case R_SPARC_GOT13: | |
955 | case R_SPARC_GOT22: | |
956 | tls_type = GOT_NORMAL; | |
957 | break; | |
958 | case R_SPARC_TLS_GD_HI22: | |
959 | case R_SPARC_TLS_GD_LO10: | |
960 | tls_type = GOT_TLS_GD; | |
961 | break; | |
962 | case R_SPARC_TLS_IE_HI22: | |
963 | case R_SPARC_TLS_IE_LO10: | |
964 | tls_type = GOT_TLS_IE; | |
965 | break; | |
966 | } | |
252b5132 | 967 | |
b9734f35 JJ |
968 | if (h != NULL) |
969 | { | |
970 | h->got.refcount += 1; | |
971 | old_tls_type = elf32_sparc_hash_entry(h)->tls_type; | |
972 | } | |
973 | else | |
974 | { | |
975 | bfd_signed_vma *local_got_refcounts; | |
252b5132 | 976 | |
b9734f35 JJ |
977 | /* This is a global offset table entry for a local symbol. */ |
978 | local_got_refcounts = elf_local_got_refcounts (abfd); | |
979 | if (local_got_refcounts == NULL) | |
980 | { | |
981 | bfd_size_type size; | |
252b5132 | 982 | |
b9734f35 JJ |
983 | size = symtab_hdr->sh_info; |
984 | size *= (sizeof (bfd_signed_vma) + sizeof(char)); | |
985 | local_got_refcounts = ((bfd_signed_vma *) | |
986 | bfd_zalloc (abfd, size)); | |
987 | if (local_got_refcounts == NULL) | |
988 | return FALSE; | |
989 | elf_local_got_refcounts (abfd) = local_got_refcounts; | |
990 | elf32_sparc_local_got_tls_type (abfd) | |
991 | = (char *) (local_got_refcounts + symtab_hdr->sh_info); | |
992 | } | |
993 | local_got_refcounts[r_symndx] += 1; | |
994 | old_tls_type = elf32_sparc_local_got_tls_type (abfd) [r_symndx]; | |
995 | } | |
252b5132 | 996 | |
b9734f35 JJ |
997 | /* If a TLS symbol is accessed using IE at least once, |
998 | there is no point to use dynamic model for it. */ | |
999 | if (old_tls_type != tls_type && old_tls_type != GOT_UNKNOWN | |
1000 | && (old_tls_type != GOT_TLS_GD | |
1001 | || tls_type != GOT_TLS_IE)) | |
1002 | { | |
1003 | if (old_tls_type == GOT_TLS_IE && tls_type == GOT_TLS_GD) | |
1004 | tls_type = old_tls_type; | |
1005 | else | |
1006 | { | |
1007 | (*_bfd_error_handler) | |
1008 | (_("%s: `%s' accessed both as normal and thread local symbol"), | |
1009 | bfd_archive_filename (abfd), | |
1010 | h ? h->root.root.string : "<local>"); | |
b34976b6 | 1011 | return FALSE; |
b9734f35 JJ |
1012 | } |
1013 | } | |
252b5132 | 1014 | |
b9734f35 JJ |
1015 | if (old_tls_type != tls_type) |
1016 | { | |
1017 | if (h != NULL) | |
1018 | elf32_sparc_hash_entry (h)->tls_type = tls_type; | |
1019 | else | |
1020 | elf32_sparc_local_got_tls_type (abfd) [r_symndx] = tls_type; | |
1021 | } | |
1022 | } | |
252b5132 | 1023 | |
b9734f35 JJ |
1024 | if (htab->elf.dynobj == NULL) |
1025 | htab->elf.dynobj = abfd; | |
1026 | if (!create_got_section (htab->elf.dynobj, info)) | |
1027 | return FALSE; | |
1028 | break; | |
252b5132 | 1029 | |
b9734f35 JJ |
1030 | case R_SPARC_TLS_GD_CALL: |
1031 | case R_SPARC_TLS_LDM_CALL: | |
1032 | if (info->shared) | |
1033 | { | |
1034 | /* These are basically R_SPARC_TLS_WPLT30 relocs against | |
1035 | __tls_get_addr. */ | |
1036 | struct bfd_link_hash_entry *bh = NULL; | |
1037 | if (! _bfd_generic_link_add_one_symbol (info, abfd, | |
1038 | "__tls_get_addr", 0, | |
1039 | bfd_und_section_ptr, 0, | |
1040 | NULL, FALSE, FALSE, | |
1041 | &bh)) | |
1042 | return FALSE; | |
1043 | h = (struct elf_link_hash_entry *) bh; | |
252b5132 | 1044 | } |
b9734f35 JJ |
1045 | else |
1046 | break; | |
1047 | /* Fall through */ | |
252b5132 | 1048 | |
bd5e6e7e | 1049 | case R_SPARC_PLT32: |
252b5132 RH |
1050 | case R_SPARC_WPLT30: |
1051 | /* This symbol requires a procedure linkage table entry. We | |
1052 | actually build the entry in adjust_dynamic_symbol, | |
1053 | because this might be a case of linking PIC code without | |
1054 | linking in any dynamic objects, in which case we don't | |
1055 | need to generate a procedure linkage table after all. */ | |
1056 | ||
1057 | if (h == NULL) | |
1058 | { | |
1059 | /* The Solaris native assembler will generate a WPLT30 | |
1060 | reloc for a local symbol if you assemble a call from | |
1061 | one section to another when using -K pic. We treat | |
1062 | it as WDISP30. */ | |
b9734f35 | 1063 | if (ELF32_R_TYPE (rel->r_info) == R_SPARC_PLT32) |
bd5e6e7e | 1064 | goto r_sparc_plt32; |
252b5132 RH |
1065 | break; |
1066 | } | |
1067 | ||
252b5132 RH |
1068 | h->elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_PLT; |
1069 | ||
b9734f35 | 1070 | if (ELF32_R_TYPE (rel->r_info) == R_SPARC_PLT32) |
bd5e6e7e | 1071 | goto r_sparc_plt32; |
b9734f35 | 1072 | h->plt.refcount += 1; |
252b5132 RH |
1073 | break; |
1074 | ||
1075 | case R_SPARC_PC10: | |
1076 | case R_SPARC_PC22: | |
7843f00e ILT |
1077 | if (h != NULL) |
1078 | h->elf_link_hash_flags |= ELF_LINK_NON_GOT_REF; | |
1079 | ||
252b5132 RH |
1080 | if (h != NULL |
1081 | && strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0) | |
1082 | break; | |
1083 | /* Fall through. */ | |
b9734f35 | 1084 | |
252b5132 RH |
1085 | case R_SPARC_DISP8: |
1086 | case R_SPARC_DISP16: | |
1087 | case R_SPARC_DISP32: | |
1088 | case R_SPARC_WDISP30: | |
1089 | case R_SPARC_WDISP22: | |
1090 | case R_SPARC_WDISP19: | |
1091 | case R_SPARC_WDISP16: | |
252b5132 RH |
1092 | case R_SPARC_8: |
1093 | case R_SPARC_16: | |
1094 | case R_SPARC_32: | |
1095 | case R_SPARC_HI22: | |
1096 | case R_SPARC_22: | |
1097 | case R_SPARC_13: | |
1098 | case R_SPARC_LO10: | |
0f2712ed | 1099 | case R_SPARC_UA16: |
252b5132 | 1100 | case R_SPARC_UA32: |
7843f00e ILT |
1101 | if (h != NULL) |
1102 | h->elf_link_hash_flags |= ELF_LINK_NON_GOT_REF; | |
1103 | ||
bd5e6e7e | 1104 | r_sparc_plt32: |
b9734f35 JJ |
1105 | if (h != NULL && !info->shared) |
1106 | { | |
1107 | /* We may need a .plt entry if the function this reloc | |
1108 | refers to is in a shared lib. */ | |
1109 | h->plt.refcount += 1; | |
1110 | } | |
1111 | ||
1112 | /* If we are creating a shared library, and this is a reloc | |
1113 | against a global symbol, or a non PC relative reloc | |
1114 | against a local symbol, then we need to copy the reloc | |
1115 | into the shared library. However, if we are linking with | |
1116 | -Bsymbolic, we do not need to copy a reloc against a | |
1117 | global symbol which is defined in an object we are | |
1118 | including in the link (i.e., DEF_REGULAR is set). At | |
1119 | this point we have not seen all the input files, so it is | |
1120 | possible that DEF_REGULAR is not set now but will be set | |
1121 | later (it is never cleared). In case of a weak definition, | |
1122 | DEF_REGULAR may be cleared later by a strong definition in | |
1123 | a shared library. We account for that possibility below by | |
1124 | storing information in the relocs_copied field of the hash | |
1125 | table entry. A similar situation occurs when creating | |
1126 | shared libraries and symbol visibility changes render the | |
1127 | symbol local. | |
1128 | ||
1129 | If on the other hand, we are creating an executable, we | |
1130 | may need to keep relocations for symbols satisfied by a | |
1131 | dynamic library if we manage to avoid copy relocs for the | |
1132 | symbol. */ | |
1133 | if ((info->shared | |
1134 | && (sec->flags & SEC_ALLOC) != 0 | |
1135 | && (! _bfd_sparc_elf_howto_table[r_type].pc_relative | |
1136 | || (h != NULL | |
1137 | && (! info->symbolic | |
1138 | || h->root.type == bfd_link_hash_defweak | |
1139 | || (h->elf_link_hash_flags | |
1140 | & ELF_LINK_HASH_DEF_REGULAR) == 0)))) | |
1141 | || (!info->shared | |
1142 | && (sec->flags & SEC_ALLOC) != 0 | |
1143 | && h != NULL | |
1144 | && (h->root.type == bfd_link_hash_defweak | |
1145 | || (h->elf_link_hash_flags | |
1146 | & ELF_LINK_HASH_DEF_REGULAR) == 0))) | |
252b5132 | 1147 | { |
b9734f35 JJ |
1148 | struct elf32_sparc_dyn_relocs *p; |
1149 | struct elf32_sparc_dyn_relocs **head; | |
1150 | ||
252b5132 RH |
1151 | /* When creating a shared object, we must copy these |
1152 | relocs into the output file. We create a reloc | |
1153 | section in dynobj and make room for the reloc. */ | |
1154 | if (sreloc == NULL) | |
1155 | { | |
1156 | const char *name; | |
b9734f35 | 1157 | bfd *dynobj; |
252b5132 RH |
1158 | |
1159 | name = (bfd_elf_string_from_elf_section | |
1160 | (abfd, | |
1161 | elf_elfheader (abfd)->e_shstrndx, | |
1162 | elf_section_data (sec)->rel_hdr.sh_name)); | |
1163 | if (name == NULL) | |
b34976b6 | 1164 | return FALSE; |
252b5132 RH |
1165 | |
1166 | BFD_ASSERT (strncmp (name, ".rela", 5) == 0 | |
1167 | && strcmp (bfd_get_section_name (abfd, sec), | |
1168 | name + 5) == 0); | |
1169 | ||
b9734f35 JJ |
1170 | if (htab->elf.dynobj == NULL) |
1171 | htab->elf.dynobj = abfd; | |
1172 | dynobj = htab->elf.dynobj; | |
1173 | ||
252b5132 RH |
1174 | sreloc = bfd_get_section_by_name (dynobj, name); |
1175 | if (sreloc == NULL) | |
1176 | { | |
1177 | flagword flags; | |
1178 | ||
1179 | sreloc = bfd_make_section (dynobj, name); | |
1180 | flags = (SEC_HAS_CONTENTS | SEC_READONLY | |
1181 | | SEC_IN_MEMORY | SEC_LINKER_CREATED); | |
1182 | if ((sec->flags & SEC_ALLOC) != 0) | |
1183 | flags |= SEC_ALLOC | SEC_LOAD; | |
1184 | if (sreloc == NULL | |
1185 | || ! bfd_set_section_flags (dynobj, sreloc, flags) | |
1186 | || ! bfd_set_section_alignment (dynobj, sreloc, 2)) | |
b34976b6 | 1187 | return FALSE; |
252b5132 | 1188 | } |
b9734f35 | 1189 | elf_section_data (sec)->sreloc = sreloc; |
252b5132 RH |
1190 | } |
1191 | ||
b9734f35 JJ |
1192 | /* If this is a global symbol, we count the number of |
1193 | relocations we need for this symbol. */ | |
1194 | if (h != NULL) | |
1195 | head = &((struct elf32_sparc_link_hash_entry *) h)->dyn_relocs; | |
1196 | else | |
1197 | { | |
1198 | /* Track dynamic relocs needed for local syms too. | |
1199 | We really need local syms available to do this | |
1200 | easily. Oh well. */ | |
1201 | ||
1202 | asection *s; | |
1203 | s = bfd_section_from_r_symndx (abfd, &htab->sym_sec, | |
1204 | sec, r_symndx); | |
1205 | if (s == NULL) | |
1206 | return FALSE; | |
1207 | ||
1208 | head = ((struct elf32_sparc_dyn_relocs **) | |
1209 | &elf_section_data (s)->local_dynrel); | |
1210 | } | |
1211 | ||
1212 | p = *head; | |
1213 | if (p == NULL || p->sec != sec) | |
1214 | { | |
1215 | bfd_size_type amt = sizeof *p; | |
1216 | p = ((struct elf32_sparc_dyn_relocs *) | |
1217 | bfd_alloc (htab->elf.dynobj, amt)); | |
1218 | if (p == NULL) | |
1219 | return FALSE; | |
1220 | p->next = *head; | |
1221 | *head = p; | |
1222 | p->sec = sec; | |
1223 | p->count = 0; | |
1224 | p->pc_count = 0; | |
1225 | } | |
1226 | ||
1227 | p->count += 1; | |
1228 | if (_bfd_sparc_elf_howto_table[r_type].pc_relative) | |
1229 | p->pc_count += 1; | |
252b5132 RH |
1230 | } |
1231 | ||
1232 | break; | |
1233 | ||
1234 | case R_SPARC_GNU_VTINHERIT: | |
1235 | if (!_bfd_elf32_gc_record_vtinherit (abfd, sec, h, rel->r_offset)) | |
b34976b6 | 1236 | return FALSE; |
252b5132 RH |
1237 | break; |
1238 | ||
1239 | case R_SPARC_GNU_VTENTRY: | |
1240 | if (!_bfd_elf32_gc_record_vtentry (abfd, sec, h, rel->r_addend)) | |
b34976b6 | 1241 | return FALSE; |
252b5132 RH |
1242 | break; |
1243 | ||
1244 | default: | |
1245 | break; | |
1246 | } | |
1247 | } | |
1248 | ||
b34976b6 | 1249 | return TRUE; |
252b5132 RH |
1250 | } |
1251 | ||
1252 | static asection * | |
1e2f5b6e AM |
1253 | elf32_sparc_gc_mark_hook (sec, info, rel, h, sym) |
1254 | asection *sec; | |
5f771d47 | 1255 | struct bfd_link_info *info ATTRIBUTE_UNUSED; |
252b5132 RH |
1256 | Elf_Internal_Rela *rel; |
1257 | struct elf_link_hash_entry *h; | |
1258 | Elf_Internal_Sym *sym; | |
1259 | { | |
252b5132 RH |
1260 | if (h != NULL) |
1261 | { | |
1262 | switch (ELF32_R_TYPE (rel->r_info)) | |
1263 | { | |
1264 | case R_SPARC_GNU_VTINHERIT: | |
1265 | case R_SPARC_GNU_VTENTRY: | |
1266 | break; | |
1267 | ||
1268 | default: | |
1269 | switch (h->root.type) | |
1270 | { | |
1271 | case bfd_link_hash_defined: | |
1272 | case bfd_link_hash_defweak: | |
1273 | return h->root.u.def.section; | |
1274 | ||
1275 | case bfd_link_hash_common: | |
1276 | return h->root.u.c.p->section; | |
e049a0de ILT |
1277 | |
1278 | default: | |
1279 | break; | |
252b5132 RH |
1280 | } |
1281 | } | |
1282 | } | |
1283 | else | |
1e2f5b6e | 1284 | return bfd_section_from_elf_index (sec->owner, sym->st_shndx); |
252b5132 RH |
1285 | |
1286 | return NULL; | |
1287 | } | |
1288 | ||
1289 | /* Update the got entry reference counts for the section being removed. */ | |
b34976b6 | 1290 | static bfd_boolean |
252b5132 RH |
1291 | elf32_sparc_gc_sweep_hook (abfd, info, sec, relocs) |
1292 | bfd *abfd; | |
5f771d47 | 1293 | struct bfd_link_info *info ATTRIBUTE_UNUSED; |
252b5132 RH |
1294 | asection *sec; |
1295 | const Elf_Internal_Rela *relocs; | |
1296 | { | |
1297 | ||
1298 | Elf_Internal_Shdr *symtab_hdr; | |
1299 | struct elf_link_hash_entry **sym_hashes; | |
1300 | bfd_signed_vma *local_got_refcounts; | |
1301 | const Elf_Internal_Rela *rel, *relend; | |
1302 | unsigned long r_symndx; | |
b9734f35 | 1303 | int r_type; |
252b5132 RH |
1304 | struct elf_link_hash_entry *h; |
1305 | ||
1306 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; | |
1307 | sym_hashes = elf_sym_hashes (abfd); | |
1308 | local_got_refcounts = elf_local_got_refcounts (abfd); | |
1309 | ||
1310 | relend = relocs + sec->reloc_count; | |
1311 | for (rel = relocs; rel < relend; rel++) | |
b9734f35 JJ |
1312 | switch ((r_type = elf32_sparc_tls_transition (info, abfd, |
1313 | ELF32_R_TYPE (rel->r_info), | |
1314 | ELF32_R_SYM (rel->r_info) | |
1315 | >= symtab_hdr->sh_info))) | |
252b5132 | 1316 | { |
b9734f35 JJ |
1317 | case R_SPARC_TLS_LDM_HI22: |
1318 | case R_SPARC_TLS_LDM_LO10: | |
1319 | if (elf32_sparc_hash_table (info)->tls_ldm_got.refcount > 0) | |
1320 | elf32_sparc_hash_table (info)->tls_ldm_got.refcount -= 1; | |
1321 | break; | |
1322 | ||
1323 | case R_SPARC_TLS_LE_HIX22: | |
1324 | case R_SPARC_TLS_LE_LOX10: | |
1325 | if (info->shared) | |
1326 | goto r_sparc_plt32; | |
1327 | break; | |
1328 | ||
1329 | case R_SPARC_PC10: | |
1330 | case R_SPARC_PC22: | |
1331 | if ((r_symndx = ELF32_R_SYM (rel->r_info)) >= symtab_hdr->sh_info | |
1332 | && strcmp (sym_hashes[r_symndx | |
1333 | - symtab_hdr->sh_info]->root.root.string, | |
1334 | "_GLOBAL_OFFSET_TABLE_") == 0) | |
1335 | break; | |
1336 | /* Fall through. */ | |
1337 | ||
1338 | case R_SPARC_DISP8: | |
1339 | case R_SPARC_DISP16: | |
1340 | case R_SPARC_DISP32: | |
1341 | case R_SPARC_WDISP30: | |
1342 | case R_SPARC_WDISP22: | |
1343 | case R_SPARC_WDISP19: | |
1344 | case R_SPARC_WDISP16: | |
1345 | case R_SPARC_8: | |
1346 | case R_SPARC_16: | |
1347 | case R_SPARC_32: | |
1348 | case R_SPARC_HI22: | |
1349 | case R_SPARC_22: | |
1350 | case R_SPARC_13: | |
1351 | case R_SPARC_LO10: | |
1352 | case R_SPARC_UA16: | |
1353 | case R_SPARC_UA32: | |
1354 | r_sparc_plt32: | |
1355 | r_symndx = ELF32_R_SYM (rel->r_info); | |
1356 | if (r_symndx >= symtab_hdr->sh_info) | |
1357 | { | |
1358 | struct elf32_sparc_link_hash_entry *eh; | |
1359 | struct elf32_sparc_dyn_relocs **pp; | |
1360 | struct elf32_sparc_dyn_relocs *p; | |
1361 | ||
1362 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
1363 | ||
1364 | if (! info->shared) | |
1365 | --h->plt.refcount; | |
1366 | ||
1367 | eh = (struct elf32_sparc_link_hash_entry *) h; | |
1368 | ||
1369 | for (pp = &eh->dyn_relocs; (p = *pp) != NULL; pp = &p->next) | |
1370 | if (p->sec == sec) | |
1371 | { | |
1372 | if (_bfd_sparc_elf_howto_table[r_type].pc_relative) | |
1373 | p->pc_count -= 1; | |
1374 | p->count -= 1; | |
1375 | if (p->count == 0) | |
1376 | *pp = p->next; | |
1377 | break; | |
1378 | } | |
1379 | } | |
1380 | break; | |
1381 | ||
1382 | case R_SPARC_TLS_GD_HI22: | |
1383 | case R_SPARC_TLS_GD_LO10: | |
1384 | case R_SPARC_TLS_IE_HI22: | |
1385 | case R_SPARC_TLS_IE_LO10: | |
252b5132 RH |
1386 | case R_SPARC_GOT10: |
1387 | case R_SPARC_GOT13: | |
1388 | case R_SPARC_GOT22: | |
1389 | r_symndx = ELF32_R_SYM (rel->r_info); | |
1390 | if (r_symndx >= symtab_hdr->sh_info) | |
1391 | { | |
1392 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
1393 | if (h->got.refcount > 0) | |
1394 | h->got.refcount--; | |
1395 | } | |
1396 | else | |
1397 | { | |
1398 | if (local_got_refcounts[r_symndx] > 0) | |
1399 | local_got_refcounts[r_symndx]--; | |
1400 | } | |
1401 | break; | |
1402 | ||
1403 | case R_SPARC_PLT32: | |
1404 | case R_SPARC_HIPLT22: | |
1405 | case R_SPARC_LOPLT10: | |
1406 | case R_SPARC_PCPLT32: | |
1407 | case R_SPARC_PCPLT10: | |
1408 | r_symndx = ELF32_R_SYM (rel->r_info); | |
1409 | if (r_symndx >= symtab_hdr->sh_info) | |
1410 | { | |
1411 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
1412 | if (h->plt.refcount > 0) | |
1413 | h->plt.refcount--; | |
1414 | } | |
b9734f35 JJ |
1415 | if (r_type == R_SPARC_PLT32) |
1416 | goto r_sparc_plt32; | |
252b5132 RH |
1417 | break; |
1418 | ||
1419 | default: | |
1420 | break; | |
1421 | } | |
1422 | ||
b34976b6 | 1423 | return TRUE; |
252b5132 RH |
1424 | } |
1425 | ||
1426 | /* Adjust a symbol defined by a dynamic object and referenced by a | |
1427 | regular object. The current definition is in some section of the | |
1428 | dynamic object, but we're not including those sections. We have to | |
1429 | change the definition to something the rest of the link can | |
1430 | understand. */ | |
1431 | ||
b34976b6 | 1432 | static bfd_boolean |
252b5132 RH |
1433 | elf32_sparc_adjust_dynamic_symbol (info, h) |
1434 | struct bfd_link_info *info; | |
1435 | struct elf_link_hash_entry *h; | |
1436 | { | |
b9734f35 JJ |
1437 | struct elf32_sparc_link_hash_table *htab; |
1438 | struct elf32_sparc_link_hash_entry * eh; | |
1439 | struct elf32_sparc_dyn_relocs *p; | |
252b5132 RH |
1440 | asection *s; |
1441 | unsigned int power_of_two; | |
1442 | ||
b9734f35 | 1443 | htab = elf32_sparc_hash_table (info); |
252b5132 RH |
1444 | |
1445 | /* Make sure we know what is going on here. */ | |
b9734f35 | 1446 | BFD_ASSERT (htab->elf.dynobj != NULL |
252b5132 RH |
1447 | && ((h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_PLT) |
1448 | || h->weakdef != NULL | |
1449 | || ((h->elf_link_hash_flags | |
1450 | & ELF_LINK_HASH_DEF_DYNAMIC) != 0 | |
1451 | && (h->elf_link_hash_flags | |
1452 | & ELF_LINK_HASH_REF_REGULAR) != 0 | |
1453 | && (h->elf_link_hash_flags | |
1454 | & ELF_LINK_HASH_DEF_REGULAR) == 0))); | |
1455 | ||
1456 | /* If this is a function, put it in the procedure linkage table. We | |
1457 | will fill in the contents of the procedure linkage table later | |
1458 | (although we could actually do it here). The STT_NOTYPE | |
1459 | condition is a hack specifically for the Oracle libraries | |
1460 | delivered for Solaris; for some inexplicable reason, they define | |
1461 | some of their functions as STT_NOTYPE when they really should be | |
1462 | STT_FUNC. */ | |
1463 | if (h->type == STT_FUNC | |
1464 | || (h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_PLT) != 0 | |
1465 | || (h->type == STT_NOTYPE | |
1466 | && (h->root.type == bfd_link_hash_defined | |
1467 | || h->root.type == bfd_link_hash_defweak) | |
1468 | && (h->root.u.def.section->flags & SEC_CODE) != 0)) | |
1469 | { | |
b9734f35 JJ |
1470 | if (h->plt.refcount <= 0 |
1471 | || (! info->shared | |
1472 | && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC) == 0 | |
1473 | && (h->elf_link_hash_flags & ELF_LINK_HASH_REF_DYNAMIC) == 0 | |
1474 | && h->root.type != bfd_link_hash_undefweak | |
1475 | && h->root.type != bfd_link_hash_undefined)) | |
252b5132 RH |
1476 | { |
1477 | /* This case can occur if we saw a WPLT30 reloc in an input | |
b9734f35 JJ |
1478 | file, but the symbol was never referred to by a dynamic |
1479 | object, or if all references were garbage collected. In | |
1480 | such a case, we don't actually need to build a procedure | |
1481 | linkage table, and we can just do a WDISP30 reloc instead. */ | |
1482 | h->plt.offset = (bfd_vma) -1; | |
252b5132 | 1483 | h->elf_link_hash_flags &= ~ELF_LINK_HASH_NEEDS_PLT; |
252b5132 RH |
1484 | } |
1485 | ||
b34976b6 | 1486 | return TRUE; |
252b5132 | 1487 | } |
b9734f35 JJ |
1488 | else |
1489 | h->plt.offset = (bfd_vma) -1; | |
252b5132 RH |
1490 | |
1491 | /* If this is a weak symbol, and there is a real definition, the | |
1492 | processor independent code will have arranged for us to see the | |
1493 | real definition first, and we can just use the same value. */ | |
1494 | if (h->weakdef != NULL) | |
1495 | { | |
1496 | BFD_ASSERT (h->weakdef->root.type == bfd_link_hash_defined | |
1497 | || h->weakdef->root.type == bfd_link_hash_defweak); | |
1498 | h->root.u.def.section = h->weakdef->root.u.def.section; | |
1499 | h->root.u.def.value = h->weakdef->root.u.def.value; | |
b34976b6 | 1500 | return TRUE; |
252b5132 RH |
1501 | } |
1502 | ||
1503 | /* This is a reference to a symbol defined by a dynamic object which | |
1504 | is not a function. */ | |
1505 | ||
1506 | /* If we are creating a shared library, we must presume that the | |
1507 | only references to the symbol are via the global offset table. | |
1508 | For such cases we need not do anything here; the relocations will | |
1509 | be handled correctly by relocate_section. */ | |
1510 | if (info->shared) | |
b34976b6 | 1511 | return TRUE; |
252b5132 | 1512 | |
7843f00e ILT |
1513 | /* If there are no references to this symbol that do not use the |
1514 | GOT, we don't need to generate a copy reloc. */ | |
1515 | if ((h->elf_link_hash_flags & ELF_LINK_NON_GOT_REF) == 0) | |
b34976b6 | 1516 | return TRUE; |
7843f00e | 1517 | |
b9734f35 JJ |
1518 | eh = (struct elf32_sparc_link_hash_entry *) h; |
1519 | for (p = eh->dyn_relocs; p != NULL; p = p->next) | |
1520 | { | |
1521 | s = p->sec->output_section; | |
1522 | if (s != NULL && (s->flags & SEC_READONLY) != 0) | |
1523 | break; | |
1524 | } | |
1525 | ||
1526 | /* If we didn't find any dynamic relocs in read-only sections, then | |
1527 | we'll be keeping the dynamic relocs and avoiding the copy reloc. */ | |
1528 | if (p == NULL) | |
1529 | { | |
1530 | h->elf_link_hash_flags &= ~ELF_LINK_NON_GOT_REF; | |
1531 | return TRUE; | |
1532 | } | |
1533 | ||
252b5132 RH |
1534 | /* We must allocate the symbol in our .dynbss section, which will |
1535 | become part of the .bss section of the executable. There will be | |
1536 | an entry for this symbol in the .dynsym section. The dynamic | |
1537 | object will contain position independent code, so all references | |
1538 | from the dynamic object to this symbol will go through the global | |
1539 | offset table. The dynamic linker will use the .dynsym entry to | |
1540 | determine the address it must put in the global offset table, so | |
1541 | both the dynamic object and the regular object will refer to the | |
1542 | same memory location for the variable. */ | |
1543 | ||
b9734f35 JJ |
1544 | /* We must generate a R_SPARC_COPY reloc to tell the dynamic linker |
1545 | to copy the initial value out of the dynamic object and into the | |
1546 | runtime process image. We need to remember the offset into the | |
1547 | .rel.bss section we are going to use. */ | |
1548 | if ((h->root.u.def.section->flags & SEC_ALLOC) != 0) | |
1549 | { | |
1550 | htab->srelbss->_raw_size += sizeof (Elf32_External_Rela); | |
1551 | h->elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_COPY; | |
1552 | } | |
1553 | ||
1554 | /* We need to figure out the alignment required for this symbol. I | |
1555 | have no idea how ELF linkers handle this. */ | |
1556 | power_of_two = bfd_log2 (h->size); | |
1557 | if (power_of_two > 3) | |
1558 | power_of_two = 3; | |
1559 | ||
1560 | /* Apply the required alignment. */ | |
1561 | s = htab->sdynbss; | |
1562 | s->_raw_size = BFD_ALIGN (s->_raw_size, | |
1563 | (bfd_size_type) (1 << power_of_two)); | |
1564 | if (power_of_two > bfd_get_section_alignment (dynobj, s)) | |
1565 | { | |
1566 | if (! bfd_set_section_alignment (dynobj, s, power_of_two)) | |
1567 | return FALSE; | |
1568 | } | |
1569 | ||
1570 | /* Define the symbol as being at this point in the section. */ | |
1571 | h->root.u.def.section = s; | |
1572 | h->root.u.def.value = s->_raw_size; | |
1573 | ||
1574 | /* Increment the section size to make room for the symbol. */ | |
1575 | s->_raw_size += h->size; | |
1576 | ||
1577 | return TRUE; | |
1578 | } | |
1579 | ||
1580 | /* This is the condition under which finish_dynamic_symbol will be called | |
1581 | from elflink.h. If elflink.h doesn't call our finish_dynamic_symbol | |
1582 | routine, we'll need to do something about initializing any .plt and .got | |
1583 | entries in relocate_section. */ | |
1584 | #define WILL_CALL_FINISH_DYNAMIC_SYMBOL(DYN, INFO, H) \ | |
1585 | ((DYN) \ | |
1586 | && ((INFO)->shared \ | |
1587 | || ((H)->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) == 0) \ | |
1588 | && ((H)->dynindx != -1 \ | |
1589 | || ((H)->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) != 0)) | |
1590 | ||
1591 | /* Allocate space in .plt, .got and associated reloc sections for | |
1592 | dynamic relocs. */ | |
1593 | ||
1594 | static bfd_boolean | |
1595 | allocate_dynrelocs (h, inf) | |
1596 | struct elf_link_hash_entry *h; | |
1597 | PTR inf; | |
1598 | { | |
1599 | struct bfd_link_info *info; | |
1600 | struct elf32_sparc_link_hash_table *htab; | |
1601 | struct elf32_sparc_link_hash_entry *eh; | |
1602 | struct elf32_sparc_dyn_relocs *p; | |
1603 | ||
1604 | if (h->root.type == bfd_link_hash_indirect) | |
1605 | return TRUE; | |
1606 | ||
1607 | if (h->root.type == bfd_link_hash_warning) | |
1608 | /* When warning symbols are created, they **replace** the "real" | |
1609 | entry in the hash table, thus we never get to see the real | |
1610 | symbol in a hash traversal. So look at it now. */ | |
1611 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
1612 | ||
1613 | info = (struct bfd_link_info *) inf; | |
1614 | htab = elf32_sparc_hash_table (info); | |
1615 | ||
1616 | if (htab->elf.dynamic_sections_created | |
1617 | && h->plt.refcount > 0) | |
1618 | { | |
1619 | /* Make sure this symbol is output as a dynamic symbol. | |
1620 | Undefined weak syms won't yet be marked as dynamic. */ | |
1621 | if (h->dynindx == -1 | |
1622 | && (h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) == 0) | |
1623 | { | |
1624 | if (! bfd_elf32_link_record_dynamic_symbol (info, h)) | |
1625 | return FALSE; | |
1626 | } | |
1627 | ||
1628 | if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, info, h)) | |
1629 | { | |
1630 | asection *s = htab->splt; | |
1631 | ||
1632 | /* The first four entries in .plt are reserved. */ | |
1633 | if (s->_raw_size == 0) | |
1634 | s->_raw_size = 4 * PLT_ENTRY_SIZE; | |
1635 | ||
1636 | /* The procedure linkage table has a maximum size. */ | |
1637 | if (s->_raw_size >= 0x400000) | |
1638 | { | |
1639 | bfd_set_error (bfd_error_bad_value); | |
1640 | return FALSE; | |
1641 | } | |
1642 | ||
1643 | h->plt.offset = s->_raw_size; | |
1644 | ||
1645 | /* If this symbol is not defined in a regular file, and we are | |
1646 | not generating a shared library, then set the symbol to this | |
1647 | location in the .plt. This is required to make function | |
1648 | pointers compare as equal between the normal executable and | |
1649 | the shared library. */ | |
1650 | if (! info->shared | |
1651 | && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0) | |
1652 | { | |
1653 | h->root.u.def.section = s; | |
1654 | h->root.u.def.value = h->plt.offset; | |
1655 | } | |
1656 | ||
1657 | /* Make room for this entry. */ | |
1658 | s->_raw_size += PLT_ENTRY_SIZE; | |
1659 | ||
1660 | /* We also need to make an entry in the .rela.plt section. */ | |
1661 | htab->srelplt->_raw_size += sizeof (Elf32_External_Rela); | |
1662 | } | |
1663 | else | |
1664 | { | |
1665 | h->plt.offset = (bfd_vma) -1; | |
1666 | h->elf_link_hash_flags &= ~ELF_LINK_HASH_NEEDS_PLT; | |
1667 | } | |
1668 | } | |
1669 | else | |
1670 | { | |
1671 | h->plt.offset = (bfd_vma) -1; | |
1672 | h->elf_link_hash_flags &= ~ELF_LINK_HASH_NEEDS_PLT; | |
1673 | } | |
1674 | ||
1675 | /* If R_SPARC_TLS_IE_{HI22,LO10} symbol is now local to the binary, | |
1676 | make it a R_SPARC_TLS_LE_{HI22,LO10} requiring no TLS entry. */ | |
1677 | if (h->got.refcount > 0 | |
1678 | && !info->shared | |
1679 | && h->dynindx == -1 | |
1680 | && elf32_sparc_hash_entry(h)->tls_type == GOT_TLS_IE) | |
1681 | h->got.offset = (bfd_vma) -1; | |
1682 | else if (h->got.refcount > 0) | |
1683 | { | |
1684 | asection *s; | |
1685 | bfd_boolean dyn; | |
1686 | int tls_type = elf32_sparc_hash_entry(h)->tls_type; | |
1687 | ||
1688 | /* Make sure this symbol is output as a dynamic symbol. | |
1689 | Undefined weak syms won't yet be marked as dynamic. */ | |
1690 | if (h->dynindx == -1 | |
1691 | && (h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) == 0) | |
1692 | { | |
1693 | if (! bfd_elf32_link_record_dynamic_symbol (info, h)) | |
1694 | return FALSE; | |
1695 | } | |
1696 | ||
1697 | s = htab->sgot; | |
1698 | h->got.offset = s->_raw_size; | |
1699 | s->_raw_size += 4; | |
1700 | /* R_SPARC_TLS_GD_HI{22,LO10} needs 2 consecutive GOT slots. */ | |
1701 | if (tls_type == GOT_TLS_GD) | |
1702 | s->_raw_size += 4; | |
1703 | dyn = htab->elf.dynamic_sections_created; | |
1704 | /* R_SPARC_TLS_IE_{HI22,LO10} needs one dynamic relocation, | |
1705 | R_SPARC_TLS_GD_{HI22,LO10} needs one if local symbol and two if | |
1706 | global. */ | |
1707 | if ((tls_type == GOT_TLS_GD && h->dynindx == -1) | |
1708 | || tls_type == GOT_TLS_IE) | |
1709 | htab->srelgot->_raw_size += sizeof (Elf32_External_Rela); | |
1710 | else if (tls_type == GOT_TLS_GD) | |
1711 | htab->srelgot->_raw_size += 2 * sizeof (Elf32_External_Rela); | |
1712 | else if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info, h)) | |
1713 | htab->srelgot->_raw_size += sizeof (Elf32_External_Rela); | |
1714 | } | |
1715 | else | |
1716 | h->got.offset = (bfd_vma) -1; | |
1717 | ||
1718 | eh = (struct elf32_sparc_link_hash_entry *) h; | |
1719 | if (eh->dyn_relocs == NULL) | |
1720 | return TRUE; | |
1721 | ||
1722 | /* In the shared -Bsymbolic case, discard space allocated for | |
1723 | dynamic pc-relative relocs against symbols which turn out to be | |
1724 | defined in regular objects. For the normal shared case, discard | |
1725 | space for pc-relative relocs that have become local due to symbol | |
1726 | visibility changes. */ | |
1727 | ||
1728 | if (info->shared) | |
1729 | { | |
1730 | if ((h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) != 0 | |
1731 | && ((h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) != 0 | |
1732 | || info->symbolic)) | |
1733 | { | |
1734 | struct elf32_sparc_dyn_relocs **pp; | |
1735 | ||
1736 | for (pp = &eh->dyn_relocs; (p = *pp) != NULL; ) | |
1737 | { | |
1738 | p->count -= p->pc_count; | |
1739 | p->pc_count = 0; | |
1740 | if (p->count == 0) | |
1741 | *pp = p->next; | |
1742 | else | |
1743 | pp = &p->next; | |
1744 | } | |
1745 | } | |
1746 | } | |
1747 | else | |
1748 | { | |
1749 | /* For the non-shared case, discard space for relocs against | |
1750 | symbols which turn out to need copy relocs or are not | |
1751 | dynamic. */ | |
1752 | ||
1753 | if ((h->elf_link_hash_flags & ELF_LINK_NON_GOT_REF) == 0 | |
1754 | && (((h->elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC) != 0 | |
1755 | && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0) | |
1756 | || (htab->elf.dynamic_sections_created | |
1757 | && (h->root.type == bfd_link_hash_undefweak | |
1758 | || h->root.type == bfd_link_hash_undefined)))) | |
1759 | { | |
1760 | /* Make sure this symbol is output as a dynamic symbol. | |
1761 | Undefined weak syms won't yet be marked as dynamic. */ | |
1762 | if (h->dynindx == -1 | |
1763 | && (h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) == 0) | |
1764 | { | |
1765 | if (! bfd_elf32_link_record_dynamic_symbol (info, h)) | |
1766 | return FALSE; | |
1767 | } | |
1768 | ||
1769 | /* If that succeeded, we know we'll be keeping all the | |
1770 | relocs. */ | |
1771 | if (h->dynindx != -1) | |
1772 | goto keep; | |
1773 | } | |
252b5132 | 1774 | |
b9734f35 | 1775 | eh->dyn_relocs = NULL; |
252b5132 | 1776 | |
b9734f35 | 1777 | keep: ; |
252b5132 RH |
1778 | } |
1779 | ||
b9734f35 JJ |
1780 | /* Finally, allocate space. */ |
1781 | for (p = eh->dyn_relocs; p != NULL; p = p->next) | |
252b5132 | 1782 | { |
b9734f35 JJ |
1783 | asection *sreloc = elf_section_data (p->sec)->sreloc; |
1784 | sreloc->_raw_size += p->count * sizeof (Elf32_External_Rela); | |
252b5132 RH |
1785 | } |
1786 | ||
b9734f35 JJ |
1787 | return TRUE; |
1788 | } | |
252b5132 | 1789 | |
b9734f35 | 1790 | /* Find any dynamic relocs that apply to read-only sections. */ |
252b5132 | 1791 | |
b9734f35 JJ |
1792 | static bfd_boolean |
1793 | readonly_dynrelocs (h, inf) | |
1794 | struct elf_link_hash_entry *h; | |
1795 | PTR inf; | |
1796 | { | |
1797 | struct elf32_sparc_link_hash_entry *eh; | |
1798 | struct elf32_sparc_dyn_relocs *p; | |
1799 | ||
1800 | if (h->root.type == bfd_link_hash_warning) | |
1801 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
1802 | ||
1803 | eh = (struct elf32_sparc_link_hash_entry *) h; | |
1804 | for (p = eh->dyn_relocs; p != NULL; p = p->next) | |
1805 | { | |
1806 | asection *s = p->sec->output_section; | |
1807 | ||
1808 | if (s != NULL && (s->flags & SEC_READONLY) != 0) | |
1809 | { | |
1810 | struct bfd_link_info *info = (struct bfd_link_info *) inf; | |
1811 | ||
1812 | info->flags |= DF_TEXTREL; | |
1813 | ||
1814 | /* Not an error, just cut short the traversal. */ | |
1815 | return FALSE; | |
1816 | } | |
1817 | } | |
b34976b6 | 1818 | return TRUE; |
252b5132 RH |
1819 | } |
1820 | ||
1821 | /* Set the sizes of the dynamic sections. */ | |
1822 | ||
b34976b6 | 1823 | static bfd_boolean |
252b5132 | 1824 | elf32_sparc_size_dynamic_sections (output_bfd, info) |
db6751f2 | 1825 | bfd *output_bfd ATTRIBUTE_UNUSED; |
252b5132 RH |
1826 | struct bfd_link_info *info; |
1827 | { | |
b9734f35 | 1828 | struct elf32_sparc_link_hash_table *htab; |
252b5132 RH |
1829 | bfd *dynobj; |
1830 | asection *s; | |
b9734f35 | 1831 | bfd *ibfd; |
252b5132 | 1832 | |
b9734f35 JJ |
1833 | htab = elf32_sparc_hash_table (info); |
1834 | dynobj = htab->elf.dynobj; | |
252b5132 RH |
1835 | BFD_ASSERT (dynobj != NULL); |
1836 | ||
1837 | if (elf_hash_table (info)->dynamic_sections_created) | |
1838 | { | |
1839 | /* Set the contents of the .interp section to the interpreter. */ | |
1840 | if (! info->shared) | |
1841 | { | |
1842 | s = bfd_get_section_by_name (dynobj, ".interp"); | |
1843 | BFD_ASSERT (s != NULL); | |
1844 | s->_raw_size = sizeof ELF_DYNAMIC_INTERPRETER; | |
1845 | s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER; | |
1846 | } | |
b9734f35 | 1847 | } |
252b5132 | 1848 | |
b9734f35 JJ |
1849 | /* Set up .got offsets for local syms, and space for local dynamic |
1850 | relocs. */ | |
1851 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next) | |
1852 | { | |
1853 | bfd_signed_vma *local_got; | |
1854 | bfd_signed_vma *end_local_got; | |
1855 | char *local_tls_type; | |
1856 | bfd_size_type locsymcount; | |
1857 | Elf_Internal_Shdr *symtab_hdr; | |
1858 | asection *srel; | |
1859 | ||
1860 | if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour) | |
1861 | continue; | |
1862 | ||
1863 | for (s = ibfd->sections; s != NULL; s = s->next) | |
1864 | { | |
1865 | struct elf32_sparc_dyn_relocs *p; | |
1866 | ||
1867 | for (p = *((struct elf32_sparc_dyn_relocs **) | |
1868 | &elf_section_data (s)->local_dynrel); | |
1869 | p != NULL; | |
1870 | p = p->next) | |
1871 | { | |
1872 | if (!bfd_is_abs_section (p->sec) | |
1873 | && bfd_is_abs_section (p->sec->output_section)) | |
1874 | { | |
1875 | /* Input section has been discarded, either because | |
1876 | it is a copy of a linkonce section or due to | |
1877 | linker script /DISCARD/, so we'll be discarding | |
1878 | the relocs too. */ | |
1879 | } | |
1880 | else if (p->count != 0) | |
1881 | { | |
1882 | srel = elf_section_data (p->sec)->sreloc; | |
1883 | srel->_raw_size += p->count * sizeof (Elf32_External_Rela); | |
1884 | if ((p->sec->output_section->flags & SEC_READONLY) != 0) | |
1885 | info->flags |= DF_TEXTREL; | |
1886 | } | |
1887 | } | |
1888 | } | |
1889 | ||
1890 | local_got = elf_local_got_refcounts (ibfd); | |
1891 | if (!local_got) | |
1892 | continue; | |
1893 | ||
1894 | symtab_hdr = &elf_tdata (ibfd)->symtab_hdr; | |
1895 | locsymcount = symtab_hdr->sh_info; | |
1896 | end_local_got = local_got + locsymcount; | |
1897 | local_tls_type = elf32_sparc_local_got_tls_type (ibfd); | |
1898 | s = htab->sgot; | |
1899 | srel = htab->srelgot; | |
1900 | for (; local_got < end_local_got; ++local_got, ++local_tls_type) | |
1901 | { | |
1902 | if (*local_got > 0) | |
1903 | { | |
1904 | *local_got = s->_raw_size; | |
1905 | s->_raw_size += 4; | |
1906 | if (*local_tls_type == GOT_TLS_GD) | |
1907 | s->_raw_size += 4; | |
1908 | if (info->shared | |
1909 | || *local_tls_type == GOT_TLS_GD | |
1910 | || *local_tls_type == GOT_TLS_IE) | |
1911 | srel->_raw_size += sizeof (Elf32_External_Rela); | |
1912 | } | |
1913 | else | |
1914 | *local_got = (bfd_vma) -1; | |
1915 | } | |
1916 | } | |
1917 | ||
1918 | if (htab->tls_ldm_got.refcount > 0) | |
1919 | { | |
1920 | /* Allocate 2 got entries and 1 dynamic reloc for | |
1921 | R_SPARC_TLS_LDM_{HI22,LO10} relocs. */ | |
1922 | htab->tls_ldm_got.offset = htab->sgot->_raw_size; | |
1923 | htab->sgot->_raw_size += 8; | |
1924 | htab->srelgot->_raw_size += sizeof (Elf32_External_Rela); | |
252b5132 RH |
1925 | } |
1926 | else | |
b9734f35 JJ |
1927 | htab->tls_ldm_got.offset = -1; |
1928 | ||
1929 | /* Allocate global sym .plt and .got entries, and space for global | |
1930 | sym dynamic relocs. */ | |
1931 | elf_link_hash_traverse (&htab->elf, allocate_dynrelocs, (PTR) info); | |
1932 | ||
1933 | if (elf_hash_table (info)->dynamic_sections_created) | |
252b5132 | 1934 | { |
b9734f35 JJ |
1935 | /* Make space for the trailing nop in .plt. */ |
1936 | if (htab->splt->_raw_size > 0) | |
1937 | htab->splt->_raw_size += 4; | |
1938 | ||
1939 | /* If the .got section is more than 0x1000 bytes, we add | |
1940 | 0x1000 to the value of _GLOBAL_OFFSET_TABLE_, so that 13 | |
1941 | bit relocations have a greater chance of working. */ | |
1942 | if (htab->sgot->_raw_size >= 0x1000 | |
1943 | && elf_hash_table (info)->hgot->root.u.def.value == 0) | |
1944 | elf_hash_table (info)->hgot->root.u.def.value = 0x1000; | |
252b5132 RH |
1945 | } |
1946 | ||
1947 | /* The check_relocs and adjust_dynamic_symbol entry points have | |
1948 | determined the sizes of the various dynamic sections. Allocate | |
1949 | memory for them. */ | |
252b5132 RH |
1950 | for (s = dynobj->sections; s != NULL; s = s->next) |
1951 | { | |
1952 | const char *name; | |
b9734f35 | 1953 | bfd_boolean strip = FALSE; |
252b5132 RH |
1954 | |
1955 | if ((s->flags & SEC_LINKER_CREATED) == 0) | |
1956 | continue; | |
1957 | ||
1958 | /* It's OK to base decisions on the section name, because none | |
1959 | of the dynobj section names depend upon the input files. */ | |
1960 | name = bfd_get_section_name (dynobj, s); | |
1961 | ||
252b5132 RH |
1962 | if (strncmp (name, ".rela", 5) == 0) |
1963 | { | |
1964 | if (s->_raw_size == 0) | |
1965 | { | |
1966 | /* If we don't need this section, strip it from the | |
1967 | output file. This is to handle .rela.bss and | |
1968 | .rel.plt. We must create it in | |
1969 | create_dynamic_sections, because it must be created | |
1970 | before the linker maps input sections to output | |
1971 | sections. The linker does that before | |
1972 | adjust_dynamic_symbol is called, and it is that | |
1973 | function which decides whether anything needs to go | |
1974 | into these sections. */ | |
b34976b6 | 1975 | strip = TRUE; |
252b5132 RH |
1976 | } |
1977 | else | |
1978 | { | |
252b5132 RH |
1979 | /* We use the reloc_count field as a counter if we need |
1980 | to copy relocs into the output file. */ | |
1981 | s->reloc_count = 0; | |
1982 | } | |
1983 | } | |
b9734f35 | 1984 | else if (s != htab->splt && s != htab->sgot) |
252b5132 RH |
1985 | { |
1986 | /* It's not one of our sections, so don't allocate space. */ | |
1987 | continue; | |
1988 | } | |
1989 | ||
1990 | if (strip) | |
1991 | { | |
7f8d5fc9 | 1992 | _bfd_strip_section_from_output (info, s); |
252b5132 RH |
1993 | continue; |
1994 | } | |
1995 | ||
1996 | /* Allocate memory for the section contents. */ | |
7a9af8c4 NC |
1997 | /* FIXME: This should be a call to bfd_alloc not bfd_zalloc. |
1998 | Unused entries should be reclaimed before the section's contents | |
1999 | are written out, but at the moment this does not happen. Thus in | |
2000 | order to prevent writing out garbage, we initialise the section's | |
2001 | contents to zero. */ | |
2002 | s->contents = (bfd_byte *) bfd_zalloc (dynobj, s->_raw_size); | |
252b5132 | 2003 | if (s->contents == NULL && s->_raw_size != 0) |
b34976b6 | 2004 | return FALSE; |
252b5132 RH |
2005 | } |
2006 | ||
2007 | if (elf_hash_table (info)->dynamic_sections_created) | |
2008 | { | |
2009 | /* Add some entries to the .dynamic section. We fill in the | |
2010 | values later, in elf32_sparc_finish_dynamic_sections, but we | |
2011 | must add the entries now so that we get the correct size for | |
2012 | the .dynamic section. The DT_DEBUG entry is filled in by the | |
2013 | dynamic linker and used by the debugger. */ | |
dc810e39 AM |
2014 | #define add_dynamic_entry(TAG, VAL) \ |
2015 | bfd_elf32_add_dynamic_entry (info, (bfd_vma) (TAG), (bfd_vma) (VAL)) | |
2016 | ||
2017 | if (!info->shared) | |
252b5132 | 2018 | { |
dc810e39 | 2019 | if (!add_dynamic_entry (DT_DEBUG, 0)) |
b34976b6 | 2020 | return FALSE; |
252b5132 RH |
2021 | } |
2022 | ||
b9734f35 | 2023 | if (htab->srelplt->_raw_size != 0) |
252b5132 | 2024 | { |
dc810e39 AM |
2025 | if (!add_dynamic_entry (DT_PLTGOT, 0) |
2026 | || !add_dynamic_entry (DT_PLTRELSZ, 0) | |
2027 | || !add_dynamic_entry (DT_PLTREL, DT_RELA) | |
2028 | || !add_dynamic_entry (DT_JMPREL, 0)) | |
b34976b6 | 2029 | return FALSE; |
252b5132 RH |
2030 | } |
2031 | ||
dc810e39 AM |
2032 | if (!add_dynamic_entry (DT_RELA, 0) |
2033 | || !add_dynamic_entry (DT_RELASZ, 0) | |
2034 | || !add_dynamic_entry (DT_RELAENT, sizeof (Elf32_External_Rela))) | |
b34976b6 | 2035 | return FALSE; |
252b5132 | 2036 | |
b9734f35 JJ |
2037 | /* If any dynamic relocs apply to a read-only section, |
2038 | then we need a DT_TEXTREL entry. */ | |
2039 | if ((info->flags & DF_TEXTREL) == 0) | |
2040 | elf_link_hash_traverse (&htab->elf, readonly_dynrelocs, | |
2041 | (PTR) info); | |
2042 | ||
db6751f2 | 2043 | if (info->flags & DF_TEXTREL) |
252b5132 | 2044 | { |
dc810e39 | 2045 | if (!add_dynamic_entry (DT_TEXTREL, 0)) |
b34976b6 | 2046 | return FALSE; |
252b5132 RH |
2047 | } |
2048 | } | |
dc810e39 | 2049 | #undef add_dynamic_entry |
252b5132 | 2050 | |
b34976b6 | 2051 | return TRUE; |
252b5132 RH |
2052 | } |
2053 | ||
f0abc2a1 AM |
2054 | struct elf32_sparc_section_data |
2055 | { | |
2056 | struct bfd_elf_section_data elf; | |
2057 | unsigned int do_relax; | |
2058 | }; | |
2059 | ||
2060 | #define sec_do_relax(sec) \ | |
68bfbfcc | 2061 | ((struct elf32_sparc_section_data *) elf_section_data (sec))->do_relax |
f0abc2a1 AM |
2062 | |
2063 | static bfd_boolean | |
2064 | elf32_sparc_new_section_hook (abfd, sec) | |
2065 | bfd *abfd; | |
2066 | asection *sec; | |
2067 | { | |
2068 | struct elf32_sparc_section_data *sdata; | |
2069 | bfd_size_type amt = sizeof (*sdata); | |
2070 | ||
2071 | sdata = (struct elf32_sparc_section_data *) bfd_zalloc (abfd, amt); | |
2072 | if (sdata == NULL) | |
2073 | return FALSE; | |
2074 | sec->used_by_bfd = (PTR) sdata; | |
2075 | ||
2076 | return _bfd_elf_new_section_hook (abfd, sec); | |
2077 | } | |
f7775d95 | 2078 | |
b34976b6 | 2079 | static bfd_boolean |
f7775d95 JJ |
2080 | elf32_sparc_relax_section (abfd, section, link_info, again) |
2081 | bfd *abfd ATTRIBUTE_UNUSED; | |
2082 | asection *section ATTRIBUTE_UNUSED; | |
2083 | struct bfd_link_info *link_info ATTRIBUTE_UNUSED; | |
b34976b6 | 2084 | bfd_boolean *again; |
f7775d95 | 2085 | { |
b34976b6 | 2086 | *again = FALSE; |
f0abc2a1 | 2087 | sec_do_relax (section) = 1; |
b34976b6 | 2088 | return TRUE; |
f7775d95 JJ |
2089 | } |
2090 | ||
b9734f35 JJ |
2091 | /* Return the base VMA address which should be subtracted from real addresses |
2092 | when resolving @dtpoff relocation. | |
2093 | This is PT_TLS segment p_vaddr. */ | |
2094 | ||
2095 | static bfd_vma | |
2096 | dtpoff_base (info) | |
2097 | struct bfd_link_info *info; | |
2098 | { | |
2099 | /* If tls_segment is NULL, we should have signalled an error already. */ | |
2100 | if (elf_hash_table (info)->tls_segment == NULL) | |
2101 | return 0; | |
2102 | return elf_hash_table (info)->tls_segment->start; | |
2103 | } | |
2104 | ||
2105 | /* Return the relocation value for @tpoff relocation | |
2106 | if STT_TLS virtual address is ADDRESS. */ | |
2107 | ||
2108 | static bfd_vma | |
2109 | tpoff (info, address) | |
2110 | struct bfd_link_info *info; | |
2111 | bfd_vma address; | |
2112 | { | |
2113 | struct elf_link_tls_segment *tls_segment | |
2114 | = elf_hash_table (info)->tls_segment; | |
2115 | ||
2116 | /* If tls_segment is NULL, we should have signalled an error already. */ | |
2117 | if (tls_segment == NULL) | |
2118 | return 0; | |
2119 | return -(align_power (tls_segment->size, tls_segment->align) | |
2120 | + tls_segment->start - address); | |
2121 | } | |
e36f7d53 | 2122 | |
252b5132 RH |
2123 | /* Relocate a SPARC ELF section. */ |
2124 | ||
b34976b6 | 2125 | static bfd_boolean |
252b5132 RH |
2126 | elf32_sparc_relocate_section (output_bfd, info, input_bfd, input_section, |
2127 | contents, relocs, local_syms, local_sections) | |
2128 | bfd *output_bfd; | |
2129 | struct bfd_link_info *info; | |
2130 | bfd *input_bfd; | |
2131 | asection *input_section; | |
2132 | bfd_byte *contents; | |
2133 | Elf_Internal_Rela *relocs; | |
2134 | Elf_Internal_Sym *local_syms; | |
2135 | asection **local_sections; | |
2136 | { | |
b9734f35 | 2137 | struct elf32_sparc_link_hash_table *htab; |
252b5132 RH |
2138 | Elf_Internal_Shdr *symtab_hdr; |
2139 | struct elf_link_hash_entry **sym_hashes; | |
2140 | bfd_vma *local_got_offsets; | |
2141 | bfd_vma got_base; | |
252b5132 RH |
2142 | asection *sreloc; |
2143 | Elf_Internal_Rela *rel; | |
2144 | Elf_Internal_Rela *relend; | |
2145 | ||
f0fe0e16 | 2146 | if (info->relocateable) |
b34976b6 | 2147 | return TRUE; |
f0fe0e16 | 2148 | |
b9734f35 | 2149 | htab = elf32_sparc_hash_table (info); |
252b5132 RH |
2150 | symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr; |
2151 | sym_hashes = elf_sym_hashes (input_bfd); | |
2152 | local_got_offsets = elf_local_got_offsets (input_bfd); | |
2153 | ||
2154 | if (elf_hash_table (info)->hgot == NULL) | |
2155 | got_base = 0; | |
2156 | else | |
2157 | got_base = elf_hash_table (info)->hgot->root.u.def.value; | |
2158 | ||
b9734f35 | 2159 | sreloc = elf_section_data (input_section)->sreloc; |
252b5132 RH |
2160 | |
2161 | rel = relocs; | |
2162 | relend = relocs + input_section->reloc_count; | |
2163 | for (; rel < relend; rel++) | |
2164 | { | |
b9734f35 | 2165 | int r_type, tls_type; |
252b5132 RH |
2166 | reloc_howto_type *howto; |
2167 | unsigned long r_symndx; | |
2168 | struct elf_link_hash_entry *h; | |
2169 | Elf_Internal_Sym *sym; | |
2170 | asection *sec; | |
e36f7d53 | 2171 | bfd_vma relocation, off; |
252b5132 | 2172 | bfd_reloc_status_type r; |
b34976b6 AM |
2173 | bfd_boolean is_plt = FALSE; |
2174 | bfd_boolean unresolved_reloc; | |
252b5132 RH |
2175 | |
2176 | r_type = ELF32_R_TYPE (rel->r_info); | |
2177 | ||
435b1e90 | 2178 | if (r_type == R_SPARC_GNU_VTINHERIT |
252b5132 RH |
2179 | || r_type == R_SPARC_GNU_VTENTRY) |
2180 | continue; | |
2181 | ||
60dac299 | 2182 | if (r_type < 0 || r_type >= (int) R_SPARC_max_std) |
252b5132 RH |
2183 | { |
2184 | bfd_set_error (bfd_error_bad_value); | |
b34976b6 | 2185 | return FALSE; |
252b5132 RH |
2186 | } |
2187 | howto = _bfd_sparc_elf_howto_table + r_type; | |
2188 | ||
252b5132 | 2189 | /* This is a final link. */ |
f0fe0e16 | 2190 | r_symndx = ELF32_R_SYM (rel->r_info); |
252b5132 RH |
2191 | h = NULL; |
2192 | sym = NULL; | |
2193 | sec = NULL; | |
b34976b6 | 2194 | unresolved_reloc = FALSE; |
252b5132 RH |
2195 | if (r_symndx < symtab_hdr->sh_info) |
2196 | { | |
2197 | sym = local_syms + r_symndx; | |
2198 | sec = local_sections[r_symndx]; | |
f8df10f4 | 2199 | relocation = _bfd_elf_rela_local_sym (output_bfd, sym, sec, rel); |
252b5132 RH |
2200 | } |
2201 | else | |
2202 | { | |
2203 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
2204 | while (h->root.type == bfd_link_hash_indirect | |
2205 | || h->root.type == bfd_link_hash_warning) | |
2206 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
e36f7d53 RH |
2207 | |
2208 | relocation = 0; | |
252b5132 RH |
2209 | if (h->root.type == bfd_link_hash_defined |
2210 | || h->root.type == bfd_link_hash_defweak) | |
2211 | { | |
2212 | sec = h->root.u.def.section; | |
e36f7d53 RH |
2213 | if (sec->output_section == NULL) |
2214 | /* Set a flag that will be cleared later if we find a | |
2215 | relocation value for this symbol. output_section | |
2216 | is typically NULL for symbols satisfied by a shared | |
2217 | library. */ | |
b34976b6 | 2218 | unresolved_reloc = TRUE; |
252b5132 RH |
2219 | else |
2220 | relocation = (h->root.u.def.value | |
2221 | + sec->output_section->vma | |
2222 | + sec->output_offset); | |
2223 | } | |
2224 | else if (h->root.type == bfd_link_hash_undefweak) | |
e36f7d53 | 2225 | ; |
671bae9c NC |
2226 | else if (info->shared |
2227 | && (!info->symbolic || info->allow_shlib_undefined) | |
3a27a730 L |
2228 | && !info->no_undefined |
2229 | && ELF_ST_VISIBILITY (h->other) == STV_DEFAULT) | |
e36f7d53 | 2230 | ; |
252b5132 RH |
2231 | else |
2232 | { | |
2233 | if (! ((*info->callbacks->undefined_symbol) | |
2234 | (info, h->root.root.string, input_bfd, | |
5cc7c785 | 2235 | input_section, rel->r_offset, |
3a27a730 L |
2236 | (!info->shared || info->no_undefined |
2237 | || ELF_ST_VISIBILITY (h->other))))) | |
b34976b6 | 2238 | return FALSE; |
252b5132 RH |
2239 | } |
2240 | } | |
2241 | ||
2242 | switch (r_type) | |
2243 | { | |
2244 | case R_SPARC_GOT10: | |
2245 | case R_SPARC_GOT13: | |
2246 | case R_SPARC_GOT22: | |
2247 | /* Relocation is to the entry for this symbol in the global | |
2248 | offset table. */ | |
b9734f35 JJ |
2249 | if (htab->sgot == NULL) |
2250 | abort (); | |
252b5132 RH |
2251 | |
2252 | if (h != NULL) | |
2253 | { | |
b34976b6 | 2254 | bfd_boolean dyn; |
252b5132 RH |
2255 | |
2256 | off = h->got.offset; | |
2257 | BFD_ASSERT (off != (bfd_vma) -1); | |
e36f7d53 | 2258 | dyn = elf_hash_table (info)->dynamic_sections_created; |
252b5132 | 2259 | |
e36f7d53 | 2260 | if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info, h) |
252b5132 | 2261 | || (info->shared |
e36f7d53 RH |
2262 | && (info->symbolic |
2263 | || h->dynindx == -1 | |
2264 | || (h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL)) | |
252b5132 RH |
2265 | && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR))) |
2266 | { | |
2267 | /* This is actually a static link, or it is a | |
2268 | -Bsymbolic link and the symbol is defined | |
2269 | locally, or the symbol was forced to be local | |
2270 | because of a version file. We must initialize | |
2271 | this entry in the global offset table. Since the | |
2272 | offset must always be a multiple of 4, we use the | |
2273 | least significant bit to record whether we have | |
2274 | initialized it already. | |
2275 | ||
2276 | When doing a dynamic link, we create a .rela.got | |
2277 | relocation entry to initialize the value. This | |
2278 | is done in the finish_dynamic_symbol routine. */ | |
2279 | if ((off & 1) != 0) | |
2280 | off &= ~1; | |
2281 | else | |
2282 | { | |
2283 | bfd_put_32 (output_bfd, relocation, | |
b9734f35 | 2284 | htab->sgot->contents + off); |
252b5132 RH |
2285 | h->got.offset |= 1; |
2286 | } | |
2287 | } | |
e36f7d53 | 2288 | else |
b34976b6 | 2289 | unresolved_reloc = FALSE; |
252b5132 RH |
2290 | } |
2291 | else | |
2292 | { | |
252b5132 RH |
2293 | BFD_ASSERT (local_got_offsets != NULL |
2294 | && local_got_offsets[r_symndx] != (bfd_vma) -1); | |
2295 | ||
2296 | off = local_got_offsets[r_symndx]; | |
2297 | ||
2298 | /* The offset must always be a multiple of 4. We use | |
2299 | the least significant bit to record whether we have | |
2300 | already processed this entry. */ | |
2301 | if ((off & 1) != 0) | |
2302 | off &= ~1; | |
2303 | else | |
2304 | { | |
252b5132 RH |
2305 | |
2306 | if (info->shared) | |
2307 | { | |
b34976b6 | 2308 | asection *s; |
252b5132 | 2309 | Elf_Internal_Rela outrel; |
b34976b6 | 2310 | bfd_byte *loc; |
252b5132 RH |
2311 | |
2312 | /* We need to generate a R_SPARC_RELATIVE reloc | |
2313 | for the dynamic linker. */ | |
b9734f35 | 2314 | s = htab->srelgot; |
b34976b6 | 2315 | BFD_ASSERT (s != NULL); |
252b5132 | 2316 | |
b9734f35 JJ |
2317 | outrel.r_offset = (htab->sgot->output_section->vma |
2318 | + htab->sgot->output_offset | |
252b5132 RH |
2319 | + off); |
2320 | outrel.r_info = ELF32_R_INFO (0, R_SPARC_RELATIVE); | |
6b3ac709 JJ |
2321 | outrel.r_addend = relocation; |
2322 | relocation = 0; | |
b34976b6 AM |
2323 | loc = s->contents; |
2324 | loc += s->reloc_count++ * sizeof (Elf32_External_Rela); | |
2325 | bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc); | |
252b5132 RH |
2326 | } |
2327 | ||
b9734f35 JJ |
2328 | bfd_put_32 (output_bfd, relocation, |
2329 | htab->sgot->contents + off); | |
252b5132 RH |
2330 | local_got_offsets[r_symndx] |= 1; |
2331 | } | |
252b5132 | 2332 | } |
b9734f35 | 2333 | relocation = htab->sgot->output_offset + off - got_base; |
252b5132 RH |
2334 | break; |
2335 | ||
bd5e6e7e JJ |
2336 | case R_SPARC_PLT32: |
2337 | if (h == NULL || h->plt.offset == (bfd_vma) -1) | |
2338 | { | |
2339 | r_type = R_SPARC_32; | |
2340 | goto r_sparc_plt32; | |
2341 | } | |
2342 | /* Fall through. */ | |
252b5132 | 2343 | case R_SPARC_WPLT30: |
b9734f35 | 2344 | r_sparc_wplt30: |
252b5132 RH |
2345 | /* Relocation is to the entry for this symbol in the |
2346 | procedure linkage table. */ | |
2347 | ||
2348 | /* The Solaris native assembler will generate a WPLT30 reloc | |
2349 | for a local symbol if you assemble a call from one | |
2350 | section to another when using -K pic. We treat it as | |
2351 | WDISP30. */ | |
2352 | if (h == NULL) | |
2353 | break; | |
2354 | ||
2355 | if (h->plt.offset == (bfd_vma) -1) | |
2356 | { | |
2357 | /* We didn't make a PLT entry for this symbol. This | |
2358 | happens when statically linking PIC code, or when | |
2359 | using -Bsymbolic. */ | |
2360 | break; | |
2361 | } | |
2362 | ||
b9734f35 JJ |
2363 | if (htab->splt == NULL) |
2364 | abort (); | |
252b5132 | 2365 | |
b9734f35 JJ |
2366 | relocation = (htab->splt->output_section->vma |
2367 | + htab->splt->output_offset | |
252b5132 | 2368 | + h->plt.offset); |
b34976b6 | 2369 | unresolved_reloc = FALSE; |
bd5e6e7e JJ |
2370 | if (r_type == R_SPARC_PLT32) |
2371 | { | |
2372 | r_type = R_SPARC_32; | |
b34976b6 | 2373 | is_plt = TRUE; |
bd5e6e7e JJ |
2374 | goto r_sparc_plt32; |
2375 | } | |
252b5132 RH |
2376 | break; |
2377 | ||
2378 | case R_SPARC_PC10: | |
2379 | case R_SPARC_PC22: | |
2380 | if (h != NULL | |
2381 | && strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0) | |
2382 | break; | |
2383 | /* Fall through. */ | |
2384 | case R_SPARC_DISP8: | |
2385 | case R_SPARC_DISP16: | |
2386 | case R_SPARC_DISP32: | |
2387 | case R_SPARC_WDISP30: | |
2388 | case R_SPARC_WDISP22: | |
2389 | case R_SPARC_WDISP19: | |
2390 | case R_SPARC_WDISP16: | |
252b5132 RH |
2391 | case R_SPARC_8: |
2392 | case R_SPARC_16: | |
2393 | case R_SPARC_32: | |
2394 | case R_SPARC_HI22: | |
2395 | case R_SPARC_22: | |
2396 | case R_SPARC_13: | |
2397 | case R_SPARC_LO10: | |
0f2712ed | 2398 | case R_SPARC_UA16: |
252b5132 | 2399 | case R_SPARC_UA32: |
bd5e6e7e | 2400 | r_sparc_plt32: |
b9734f35 JJ |
2401 | /* r_symndx will be zero only for relocs against symbols |
2402 | from removed linkonce sections, or sections discarded by | |
2403 | a linker script. */ | |
2404 | if (r_symndx == 0 | |
2405 | || (input_section->flags & SEC_ALLOC) == 0) | |
2406 | break; | |
2407 | ||
2408 | if ((info->shared | |
2409 | && (! howto->pc_relative | |
2410 | || (h != NULL | |
2411 | && h->dynindx != -1 | |
2412 | && (! info->symbolic | |
2413 | || (h->elf_link_hash_flags | |
2414 | & ELF_LINK_HASH_DEF_REGULAR) == 0)))) | |
2415 | || (!info->shared | |
2416 | && h != NULL | |
2417 | && h->dynindx != -1 | |
2418 | && (h->elf_link_hash_flags & ELF_LINK_NON_GOT_REF) == 0 | |
2419 | && (((h->elf_link_hash_flags | |
2420 | & ELF_LINK_HASH_DEF_DYNAMIC) != 0 | |
2421 | && (h->elf_link_hash_flags | |
2422 | & ELF_LINK_HASH_DEF_REGULAR) == 0) | |
2423 | || h->root.type == bfd_link_hash_undefweak | |
2424 | || h->root.type == bfd_link_hash_undefined))) | |
252b5132 RH |
2425 | { |
2426 | Elf_Internal_Rela outrel; | |
b34976b6 AM |
2427 | bfd_byte *loc; |
2428 | bfd_boolean skip, relocate = FALSE; | |
252b5132 RH |
2429 | |
2430 | /* When generating a shared object, these relocations | |
2431 | are copied into the output file to be resolved at run | |
2432 | time. */ | |
2433 | ||
b9734f35 | 2434 | BFD_ASSERT (sreloc != NULL); |
252b5132 | 2435 | |
b34976b6 | 2436 | skip = FALSE; |
252b5132 | 2437 | |
c629eae0 JJ |
2438 | outrel.r_offset = |
2439 | _bfd_elf_section_offset (output_bfd, info, input_section, | |
2440 | rel->r_offset); | |
2441 | if (outrel.r_offset == (bfd_vma) -1) | |
b34976b6 | 2442 | skip = TRUE; |
0bb2d96a | 2443 | else if (outrel.r_offset == (bfd_vma) -2) |
b34976b6 | 2444 | skip = TRUE, relocate = TRUE; |
252b5132 RH |
2445 | outrel.r_offset += (input_section->output_section->vma |
2446 | + input_section->output_offset); | |
2447 | ||
20278fa3 JJ |
2448 | /* Optimize unaligned reloc usage now that we know where |
2449 | it finally resides. */ | |
2450 | switch (r_type) | |
2451 | { | |
2452 | case R_SPARC_16: | |
2453 | if (outrel.r_offset & 1) | |
2454 | r_type = R_SPARC_UA16; | |
2455 | break; | |
2456 | case R_SPARC_UA16: | |
2457 | if (!(outrel.r_offset & 1)) | |
2458 | r_type = R_SPARC_16; | |
2459 | break; | |
2460 | case R_SPARC_32: | |
2461 | if (outrel.r_offset & 3) | |
2462 | r_type = R_SPARC_UA32; | |
2463 | break; | |
2464 | case R_SPARC_UA32: | |
2465 | if (!(outrel.r_offset & 3)) | |
2466 | r_type = R_SPARC_32; | |
2467 | break; | |
b88a866a JJ |
2468 | case R_SPARC_DISP8: |
2469 | case R_SPARC_DISP16: | |
2470 | case R_SPARC_DISP32: | |
2471 | /* If the symbol is not dynamic, we should not keep | |
2472 | a dynamic relocation. But an .rela.* slot has been | |
2473 | allocated for it, output R_SPARC_NONE. | |
2474 | FIXME: Add code tracking needed dynamic relocs as | |
2475 | e.g. i386 has. */ | |
2476 | if (h->dynindx == -1) | |
b34976b6 | 2477 | skip = TRUE, relocate = TRUE; |
b88a866a | 2478 | break; |
20278fa3 JJ |
2479 | } |
2480 | ||
252b5132 RH |
2481 | if (skip) |
2482 | memset (&outrel, 0, sizeof outrel); | |
2483 | /* h->dynindx may be -1 if the symbol was marked to | |
2484 | become local. */ | |
bd5e6e7e | 2485 | else if (h != NULL && ! is_plt |
252b5132 RH |
2486 | && ((! info->symbolic && h->dynindx != -1) |
2487 | || (h->elf_link_hash_flags | |
2488 | & ELF_LINK_HASH_DEF_REGULAR) == 0)) | |
2489 | { | |
2490 | BFD_ASSERT (h->dynindx != -1); | |
2491 | outrel.r_info = ELF32_R_INFO (h->dynindx, r_type); | |
2492 | outrel.r_addend = rel->r_addend; | |
2493 | } | |
2494 | else | |
2495 | { | |
1fbc4a84 | 2496 | if (r_type == R_SPARC_32) |
252b5132 RH |
2497 | { |
2498 | outrel.r_info = ELF32_R_INFO (0, R_SPARC_RELATIVE); | |
2499 | outrel.r_addend = relocation + rel->r_addend; | |
2500 | } | |
2501 | else | |
2502 | { | |
2503 | long indx; | |
2504 | ||
bd5e6e7e | 2505 | if (is_plt) |
b9734f35 | 2506 | sec = htab->splt; |
bd5e6e7e | 2507 | else if (h == NULL) |
252b5132 RH |
2508 | sec = local_sections[r_symndx]; |
2509 | else | |
2510 | { | |
2511 | BFD_ASSERT (h->root.type == bfd_link_hash_defined | |
2512 | || (h->root.type | |
2513 | == bfd_link_hash_defweak)); | |
2514 | sec = h->root.u.def.section; | |
2515 | } | |
2516 | if (sec != NULL && bfd_is_abs_section (sec)) | |
2517 | indx = 0; | |
2518 | else if (sec == NULL || sec->owner == NULL) | |
2519 | { | |
2520 | bfd_set_error (bfd_error_bad_value); | |
b34976b6 | 2521 | return FALSE; |
252b5132 RH |
2522 | } |
2523 | else | |
2524 | { | |
2525 | asection *osec; | |
2526 | ||
2527 | osec = sec->output_section; | |
2528 | indx = elf_section_data (osec)->dynindx; | |
2529 | ||
2530 | /* FIXME: we really should be able to link non-pic | |
2531 | shared libraries. */ | |
2532 | if (indx == 0) | |
2533 | { | |
2534 | BFD_FAIL (); | |
2535 | (*_bfd_error_handler) | |
2536 | (_("%s: probably compiled without -fPIC?"), | |
8f615d07 | 2537 | bfd_archive_filename (input_bfd)); |
252b5132 | 2538 | bfd_set_error (bfd_error_bad_value); |
b34976b6 | 2539 | return FALSE; |
252b5132 RH |
2540 | } |
2541 | } | |
2542 | ||
2543 | outrel.r_info = ELF32_R_INFO (indx, r_type); | |
840a9995 | 2544 | outrel.r_addend = relocation + rel->r_addend; |
252b5132 RH |
2545 | } |
2546 | } | |
2547 | ||
b34976b6 AM |
2548 | loc = sreloc->contents; |
2549 | loc += sreloc->reloc_count++ * sizeof (Elf32_External_Rela); | |
2550 | bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc); | |
252b5132 RH |
2551 | |
2552 | /* This reloc will be computed at runtime, so there's no | |
20278fa3 | 2553 | need to do anything now. */ |
0bb2d96a JJ |
2554 | if (! relocate) |
2555 | continue; | |
252b5132 RH |
2556 | } |
2557 | break; | |
2558 | ||
b9734f35 JJ |
2559 | case R_SPARC_TLS_GD_HI22: |
2560 | if (! elf32_sparc_tdata (input_bfd)->has_tlsgd) | |
2561 | { | |
2562 | /* R_SPARC_REV32 used the same reloc number as | |
2563 | R_SPARC_TLS_GD_HI22. */ | |
2564 | r_type = R_SPARC_REV32; | |
2565 | break; | |
2566 | } | |
2567 | /* Fall through */ | |
2568 | ||
2569 | case R_SPARC_TLS_GD_LO10: | |
2570 | case R_SPARC_TLS_IE_HI22: | |
2571 | case R_SPARC_TLS_IE_LO10: | |
2572 | r_type = elf32_sparc_tls_transition (info, input_bfd, r_type, | |
2573 | h == NULL); | |
2574 | tls_type = GOT_UNKNOWN; | |
2575 | if (h == NULL && local_got_offsets) | |
2576 | tls_type = elf32_sparc_local_got_tls_type (input_bfd) [r_symndx]; | |
2577 | else if (h != NULL) | |
2578 | { | |
2579 | tls_type = elf32_sparc_hash_entry(h)->tls_type; | |
2580 | if (!info->shared && h->dynindx == -1 && tls_type == GOT_TLS_IE) | |
2581 | switch (ELF32_R_TYPE (rel->r_info)) | |
2582 | { | |
2583 | case R_SPARC_TLS_GD_HI22: | |
2584 | case R_SPARC_TLS_IE_HI22: | |
2585 | r_type = R_SPARC_TLS_LE_HIX22; | |
2586 | break; | |
2587 | default: | |
2588 | r_type = R_SPARC_TLS_LE_LOX10; | |
2589 | break; | |
2590 | } | |
2591 | } | |
2592 | if (tls_type == GOT_TLS_IE) | |
2593 | switch (r_type) | |
2594 | { | |
2595 | case R_SPARC_TLS_GD_HI22: | |
2596 | r_type = R_SPARC_TLS_IE_HI22; | |
2597 | break; | |
2598 | case R_SPARC_TLS_GD_LO10: | |
2599 | r_type = R_SPARC_TLS_IE_LO10; | |
2600 | break; | |
2601 | } | |
2602 | ||
2603 | if (r_type == R_SPARC_TLS_LE_HIX22) | |
2604 | { | |
2605 | relocation = tpoff (info, relocation); | |
2606 | break; | |
2607 | } | |
2608 | if (r_type == R_SPARC_TLS_LE_LOX10) | |
2609 | { | |
2610 | /* Change add into xor. */ | |
2611 | relocation = tpoff (info, relocation); | |
2612 | bfd_put_32 (output_bfd, (bfd_get_32 (input_bfd, | |
2613 | contents + rel->r_offset) | |
2614 | | 0x80182000), contents + rel->r_offset); | |
2615 | break; | |
2616 | } | |
2617 | ||
2618 | if (h != NULL) | |
2619 | { | |
2620 | off = h->got.offset; | |
2621 | h->got.offset |= 1; | |
2622 | } | |
2623 | else | |
2624 | { | |
2625 | BFD_ASSERT (local_got_offsets != NULL); | |
2626 | off = local_got_offsets[r_symndx]; | |
2627 | local_got_offsets[r_symndx] |= 1; | |
2628 | } | |
2629 | ||
2630 | r_sparc_tlsldm: | |
2631 | if (htab->sgot == NULL) | |
2632 | abort (); | |
2633 | ||
2634 | if ((off & 1) != 0) | |
2635 | off &= ~1; | |
2636 | else | |
2637 | { | |
2638 | Elf_Internal_Rela outrel; | |
2639 | Elf32_External_Rela *loc; | |
2640 | int dr_type, indx; | |
2641 | ||
2642 | if (htab->srelgot == NULL) | |
2643 | abort (); | |
2644 | ||
2645 | bfd_put_32 (output_bfd, 0, htab->sgot->contents + off); | |
2646 | outrel.r_offset = (htab->sgot->output_section->vma | |
2647 | + htab->sgot->output_offset + off); | |
2648 | indx = h && h->dynindx != -1 ? h->dynindx : 0; | |
2649 | if (r_type == R_SPARC_TLS_IE_HI22 | |
2650 | || r_type == R_SPARC_TLS_IE_LO10) | |
2651 | dr_type = R_SPARC_TLS_TPOFF32; | |
2652 | else | |
2653 | dr_type = R_SPARC_TLS_DTPMOD32; | |
2654 | if (dr_type == R_SPARC_TLS_TPOFF32 && indx == 0) | |
2655 | outrel.r_addend = relocation - dtpoff_base (info); | |
2656 | else | |
2657 | outrel.r_addend = 0; | |
2658 | outrel.r_info = ELF32_R_INFO (indx, dr_type); | |
2659 | loc = (Elf32_External_Rela *) htab->srelgot->contents; | |
2660 | loc += htab->srelgot->reloc_count++; | |
2661 | bfd_elf32_swap_reloca_out (output_bfd, &outrel, | |
2662 | (bfd_byte *) loc); | |
2663 | ||
2664 | if (r_type == R_SPARC_TLS_GD_HI22 | |
2665 | || r_type == R_SPARC_TLS_GD_LO10) | |
2666 | { | |
2667 | if (indx == 0) | |
2668 | { | |
2669 | BFD_ASSERT (! unresolved_reloc); | |
2670 | bfd_put_32 (output_bfd, | |
2671 | relocation - dtpoff_base (info), | |
2672 | htab->sgot->contents + off + 4); | |
2673 | } | |
2674 | else | |
2675 | { | |
2676 | bfd_put_32 (output_bfd, 0, | |
2677 | htab->sgot->contents + off + 4); | |
2678 | outrel.r_info = ELF32_R_INFO (indx, | |
2679 | R_SPARC_TLS_DTPOFF32); | |
2680 | outrel.r_offset += 4; | |
2681 | htab->srelgot->reloc_count++; | |
2682 | loc++; | |
2683 | bfd_elf32_swap_reloca_out (output_bfd, &outrel, | |
2684 | (bfd_byte *) loc); | |
2685 | } | |
2686 | } | |
2687 | else if (dr_type == R_SPARC_TLS_DTPMOD32) | |
2688 | { | |
2689 | bfd_put_32 (output_bfd, 0, | |
2690 | htab->sgot->contents + off + 4); | |
2691 | } | |
2692 | } | |
2693 | ||
2694 | if (off >= (bfd_vma) -2) | |
2695 | abort (); | |
2696 | ||
2697 | relocation = htab->sgot->output_offset + off - got_base; | |
2698 | unresolved_reloc = FALSE; | |
2699 | howto = _bfd_sparc_elf_howto_table + r_type; | |
2700 | break; | |
2701 | ||
2702 | case R_SPARC_TLS_LDM_HI22: | |
2703 | case R_SPARC_TLS_LDM_LO10: | |
2704 | if (! info->shared) | |
2705 | { | |
2706 | bfd_put_32 (output_bfd, SPARC_NOP, contents + rel->r_offset); | |
2707 | continue; | |
2708 | } | |
2709 | off = htab->tls_ldm_got.offset; | |
2710 | htab->tls_ldm_got.offset |= 1; | |
2711 | goto r_sparc_tlsldm; | |
2712 | ||
2713 | case R_SPARC_TLS_LDO_HIX22: | |
2714 | case R_SPARC_TLS_LDO_LOX10: | |
2715 | if (info->shared) | |
2716 | relocation -= dtpoff_base (info); | |
2717 | else | |
2718 | relocation = tpoff (info, relocation); | |
2719 | break; | |
2720 | ||
2721 | case R_SPARC_TLS_LE_HIX22: | |
2722 | case R_SPARC_TLS_LE_LOX10: | |
2723 | if (info->shared) | |
2724 | { | |
2725 | Elf_Internal_Rela outrel; | |
2726 | bfd_boolean skip, relocate = FALSE; | |
2727 | ||
2728 | BFD_ASSERT (sreloc != NULL); | |
2729 | skip = FALSE; | |
2730 | outrel.r_offset = | |
2731 | _bfd_elf_section_offset (output_bfd, info, input_section, | |
2732 | rel->r_offset); | |
2733 | if (outrel.r_offset == (bfd_vma) -1) | |
2734 | skip = TRUE; | |
2735 | else if (outrel.r_offset == (bfd_vma) -2) | |
2736 | skip = TRUE, relocate = TRUE; | |
2737 | outrel.r_offset += (input_section->output_section->vma | |
2738 | + input_section->output_offset); | |
2739 | if (skip) | |
2740 | memset (&outrel, 0, sizeof outrel); | |
2741 | else | |
2742 | { | |
2743 | outrel.r_info = ELF32_R_INFO (0, r_type); | |
2744 | outrel.r_addend = relocation - dtpoff_base (info) | |
2745 | + rel->r_addend; | |
2746 | } | |
2747 | ||
2748 | bfd_elf32_swap_reloca_out (output_bfd, &outrel, | |
2749 | (bfd_byte *) (((Elf32_External_Rela *) | |
2750 | sreloc->contents) | |
2751 | + sreloc->reloc_count)); | |
2752 | ++sreloc->reloc_count; | |
2753 | continue; | |
2754 | } | |
2755 | relocation = tpoff (info, relocation); | |
2756 | break; | |
2757 | ||
2758 | case R_SPARC_TLS_LDM_CALL: | |
2759 | if (! info->shared) | |
2760 | { | |
2761 | /* mov %g0, %o0 */ | |
2762 | bfd_put_32 (output_bfd, 0x90100000, contents + rel->r_offset); | |
2763 | continue; | |
2764 | } | |
2765 | /* Fall through */ | |
2766 | ||
2767 | case R_SPARC_TLS_GD_CALL: | |
2768 | tls_type = GOT_UNKNOWN; | |
2769 | if (h == NULL && local_got_offsets) | |
2770 | tls_type = elf32_sparc_local_got_tls_type (input_bfd) [r_symndx]; | |
2771 | else if (h != NULL) | |
2772 | tls_type = elf32_sparc_hash_entry(h)->tls_type; | |
2773 | if (! info->shared | |
2774 | || (r_type == R_SPARC_TLS_GD_CALL && tls_type == GOT_TLS_IE)) | |
2775 | { | |
2776 | bfd_vma insn; | |
2777 | ||
2778 | if (!info->shared && (h == NULL || h->dynindx == -1)) | |
2779 | { | |
2780 | /* GD -> LE */ | |
2781 | bfd_put_32 (output_bfd, SPARC_NOP, contents + rel->r_offset); | |
2782 | continue; | |
2783 | } | |
2784 | ||
2785 | /* GD -> IE */ | |
2786 | if (rel + 1 < relend | |
2787 | && ELF32_R_TYPE (rel[1].r_info) == R_SPARC_TLS_GD_ADD | |
2788 | && rel[1].r_offset == rel->r_offset + 4 | |
2789 | && ELF32_R_SYM (rel[1].r_info) == r_symndx | |
2790 | && (((insn = bfd_get_32 (input_bfd, | |
2791 | contents + rel[1].r_offset)) | |
2792 | >> 25) & 0x1f) == 8) | |
2793 | { | |
2794 | /* We have | |
2795 | call __tls_get_addr, %tgd_call(foo) | |
2796 | add %reg1, %reg2, %o0, %tgd_add(foo) | |
2797 | and change it into IE: | |
2798 | ld [%reg1 + %reg2], %o0, %tie_ld(foo) | |
2799 | add %g7, %o0, %o0, %tie_add(foo). | |
2800 | add is 0x80000000 | (rd << 25) | (rs1 << 14) | rs2, | |
2801 | ld is 0xc0000000 | (rd << 25) | (rs1 << 14) | rs2. */ | |
2802 | bfd_put_32 (output_bfd, insn | 0xc0000000, | |
2803 | contents + rel->r_offset); | |
2804 | bfd_put_32 (output_bfd, 0x9001c008, | |
2805 | contents + rel->r_offset + 4); | |
2806 | rel++; | |
2807 | continue; | |
2808 | } | |
2809 | ||
2810 | bfd_put_32 (output_bfd, 0x9001c008, contents + rel->r_offset); | |
2811 | continue; | |
2812 | } | |
2813 | ||
2814 | h = (struct elf_link_hash_entry *) | |
2815 | bfd_link_hash_lookup (info->hash, "__tls_get_addr", FALSE, | |
2816 | FALSE, TRUE); | |
2817 | BFD_ASSERT (h != NULL); | |
2818 | r_type = R_SPARC_WPLT30; | |
2819 | howto = _bfd_sparc_elf_howto_table + r_type; | |
2820 | goto r_sparc_wplt30; | |
2821 | ||
2822 | case R_SPARC_TLS_GD_ADD: | |
2823 | tls_type = GOT_UNKNOWN; | |
2824 | if (h == NULL && local_got_offsets) | |
2825 | tls_type = elf32_sparc_local_got_tls_type (input_bfd) [r_symndx]; | |
2826 | else if (h != NULL) | |
2827 | tls_type = elf32_sparc_hash_entry(h)->tls_type; | |
2828 | if (! info->shared || tls_type == GOT_TLS_IE) | |
2829 | { | |
2830 | /* add %reg1, %reg2, %reg3, %tgd_add(foo) | |
2831 | changed into IE: | |
2832 | ld [%reg1 + %reg2], %reg3, %tie_ld(foo) | |
2833 | or LE: | |
2834 | add %g7, %reg2, %reg3. */ | |
2835 | bfd_vma insn = bfd_get_32 (input_bfd, contents + rel->r_offset); | |
2836 | if ((h != NULL && h->dynindx != -1) || info->shared) | |
2837 | relocation = insn | 0xc0000000; | |
2838 | else | |
2839 | relocation = (insn & ~0x7c000) | 0x1c000; | |
2840 | bfd_put_32 (output_bfd, relocation, contents + rel->r_offset); | |
2841 | } | |
2842 | continue; | |
2843 | ||
2844 | case R_SPARC_TLS_LDM_ADD: | |
2845 | if (! info->shared) | |
2846 | bfd_put_32 (output_bfd, SPARC_NOP, contents + rel->r_offset); | |
2847 | continue; | |
2848 | ||
2849 | case R_SPARC_TLS_LDO_ADD: | |
2850 | if (! info->shared) | |
2851 | { | |
2852 | /* Change rs1 into %g7. */ | |
2853 | bfd_vma insn = bfd_get_32 (input_bfd, contents + rel->r_offset); | |
2854 | insn = (insn & ~0x7c000) | 0x1c000; | |
2855 | bfd_put_32 (output_bfd, insn, contents + rel->r_offset); | |
2856 | } | |
2857 | continue; | |
2858 | ||
2859 | case R_SPARC_TLS_IE_LD: | |
2860 | case R_SPARC_TLS_IE_LDX: | |
2861 | if (! info->shared && (h == NULL || h->dynindx == -1)) | |
2862 | { | |
2863 | bfd_vma insn = bfd_get_32 (input_bfd, contents + rel->r_offset); | |
2864 | int rs2 = insn & 0x1f; | |
2865 | int rd = (insn >> 25) & 0x1f; | |
2866 | ||
2867 | if (rs2 == rd) | |
2868 | relocation = SPARC_NOP; | |
2869 | else | |
2870 | relocation = 0x80100000 | (insn & 0x3e00001f); | |
2871 | bfd_put_32 (output_bfd, relocation, contents + rel->r_offset); | |
2872 | } | |
2873 | continue; | |
2874 | ||
2875 | case R_SPARC_TLS_IE_ADD: | |
2876 | /* Totally useless relocation. */ | |
2877 | continue; | |
2878 | ||
2879 | case R_SPARC_TLS_DTPOFF32: | |
2880 | relocation -= dtpoff_base (info); | |
2881 | break; | |
2882 | ||
252b5132 RH |
2883 | default: |
2884 | break; | |
2885 | } | |
2886 | ||
239e1f3a AM |
2887 | /* Dynamic relocs are not propagated for SEC_DEBUGGING sections |
2888 | because such sections are not SEC_ALLOC and thus ld.so will | |
2889 | not process them. */ | |
e36f7d53 | 2890 | if (unresolved_reloc |
239e1f3a | 2891 | && !((input_section->flags & SEC_DEBUGGING) != 0 |
e36f7d53 RH |
2892 | && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC) != 0)) |
2893 | (*_bfd_error_handler) | |
2894 | (_("%s(%s+0x%lx): unresolvable relocation against symbol `%s'"), | |
2895 | bfd_archive_filename (input_bfd), | |
2896 | bfd_get_section_name (input_bfd, input_section), | |
2897 | (long) rel->r_offset, | |
2898 | h->root.root.string); | |
2899 | ||
f7775d95 | 2900 | r = bfd_reloc_continue; |
252b5132 RH |
2901 | if (r_type == R_SPARC_WDISP16) |
2902 | { | |
2903 | bfd_vma x; | |
2904 | ||
2905 | relocation += rel->r_addend; | |
2906 | relocation -= (input_section->output_section->vma | |
2907 | + input_section->output_offset); | |
2908 | relocation -= rel->r_offset; | |
2909 | ||
2910 | x = bfd_get_32 (input_bfd, contents + rel->r_offset); | |
2911 | x |= ((((relocation >> 2) & 0xc000) << 6) | |
2912 | | ((relocation >> 2) & 0x3fff)); | |
2913 | bfd_put_32 (input_bfd, x, contents + rel->r_offset); | |
2914 | ||
2915 | if ((bfd_signed_vma) relocation < - 0x40000 | |
2916 | || (bfd_signed_vma) relocation > 0x3ffff) | |
2917 | r = bfd_reloc_overflow; | |
2918 | else | |
2919 | r = bfd_reloc_ok; | |
2920 | } | |
2921 | else if (r_type == R_SPARC_REV32) | |
2922 | { | |
2923 | bfd_vma x; | |
2924 | ||
2925 | relocation = relocation + rel->r_addend; | |
2926 | ||
2927 | x = bfd_get_32 (input_bfd, contents + rel->r_offset); | |
2928 | x = x + relocation; | |
2929 | bfd_putl32 (/*input_bfd,*/ x, contents + rel->r_offset); | |
b9734f35 JJ |
2930 | r = bfd_reloc_ok; |
2931 | } | |
2932 | else if (r_type == R_SPARC_TLS_LDO_HIX22 | |
2933 | || r_type == R_SPARC_TLS_LE_HIX22) | |
2934 | { | |
2935 | bfd_vma x; | |
2936 | ||
2937 | relocation += rel->r_addend; | |
2938 | relocation = relocation ^ 0xffffffff; | |
2939 | ||
2940 | x = bfd_get_32 (input_bfd, contents + rel->r_offset); | |
2941 | x = (x & ~(bfd_vma) 0x3fffff) | ((relocation >> 10) & 0x3fffff); | |
2942 | bfd_put_32 (input_bfd, x, contents + rel->r_offset); | |
2943 | r = bfd_reloc_ok; | |
2944 | } | |
2945 | else if (r_type == R_SPARC_TLS_LDO_LOX10 | |
2946 | || r_type == R_SPARC_TLS_LE_LOX10) | |
2947 | { | |
2948 | bfd_vma x; | |
2949 | ||
2950 | relocation += rel->r_addend; | |
2951 | relocation = (relocation & 0x3ff) | 0x1c00; | |
2952 | ||
2953 | x = bfd_get_32 (input_bfd, contents + rel->r_offset); | |
2954 | x = (x & ~(bfd_vma) 0x1fff) | relocation; | |
2955 | bfd_put_32 (input_bfd, x, contents + rel->r_offset); | |
2956 | ||
252b5132 RH |
2957 | r = bfd_reloc_ok; |
2958 | } | |
f7775d95 | 2959 | else if ((r_type == R_SPARC_WDISP30 || r_type == R_SPARC_WPLT30) |
f0abc2a1 | 2960 | && sec_do_relax (input_section) |
f7775d95 JJ |
2961 | && rel->r_offset + 4 < input_section->_raw_size) |
2962 | { | |
2963 | #define G0 0 | |
2964 | #define O7 15 | |
2965 | #define XCC (2 << 20) | |
2966 | #define COND(x) (((x)&0xf)<<25) | |
2967 | #define CONDA COND(0x8) | |
2968 | #define INSN_BPA (F2(0,1) | CONDA | BPRED | XCC) | |
2969 | #define INSN_BA (F2(0,2) | CONDA) | |
2970 | #define INSN_OR F3(2, 0x2, 0) | |
2971 | #define INSN_NOP F2(0,4) | |
2972 | ||
2973 | bfd_vma x, y; | |
2974 | ||
2975 | /* If the instruction is a call with either: | |
2976 | restore | |
2977 | arithmetic instruction with rd == %o7 | |
2978 | where rs1 != %o7 and rs2 if it is register != %o7 | |
2979 | then we can optimize if the call destination is near | |
2980 | by changing the call into a branch always. */ | |
2981 | x = bfd_get_32 (input_bfd, contents + rel->r_offset); | |
2982 | y = bfd_get_32 (input_bfd, contents + rel->r_offset + 4); | |
2983 | if ((x & OP(~0)) == OP(1) && (y & OP(~0)) == OP(2)) | |
2984 | { | |
2985 | if (((y & OP3(~0)) == OP3(0x3d) /* restore */ | |
2986 | || ((y & OP3(0x28)) == 0 /* arithmetic */ | |
2987 | && (y & RD(~0)) == RD(O7))) | |
2988 | && (y & RS1(~0)) != RS1(O7) | |
2989 | && ((y & F3I(~0)) | |
2990 | || (y & RS2(~0)) != RS2(O7))) | |
2991 | { | |
2992 | bfd_vma reloc; | |
2993 | ||
2994 | reloc = relocation + rel->r_addend - rel->r_offset; | |
2995 | reloc -= (input_section->output_section->vma | |
2996 | + input_section->output_offset); | |
2997 | ||
2998 | /* Ensure the reloc fits into simm22. */ | |
2999 | if ((reloc & 3) == 0 | |
3000 | && ((reloc & ~(bfd_vma)0x7fffff) == 0 | |
3001 | || ((reloc | 0x7fffff) == ~(bfd_vma)0))) | |
3002 | { | |
3003 | reloc >>= 2; | |
435b1e90 | 3004 | |
f7775d95 JJ |
3005 | /* Check whether it fits into simm19 on v9. */ |
3006 | if (((reloc & 0x3c0000) == 0 | |
3007 | || (reloc & 0x3c0000) == 0x3c0000) | |
3008 | && (elf_elfheader (output_bfd)->e_flags & EF_SPARC_32PLUS)) | |
3009 | x = INSN_BPA | (reloc & 0x7ffff); /* ba,pt %xcc */ | |
3010 | else | |
3011 | x = INSN_BA | (reloc & 0x3fffff); /* ba */ | |
3012 | bfd_put_32 (input_bfd, x, contents + rel->r_offset); | |
3013 | r = bfd_reloc_ok; | |
3014 | if (rel->r_offset >= 4 | |
3015 | && (y & (0xffffffff ^ RS1(~0))) | |
3016 | == (INSN_OR | RD(O7) | RS2(G0))) | |
3017 | { | |
3018 | bfd_vma z; | |
3019 | unsigned int reg; | |
3020 | ||
3021 | z = bfd_get_32 (input_bfd, | |
3022 | contents + rel->r_offset - 4); | |
3023 | if ((z & (0xffffffff ^ RD(~0))) | |
3024 | != (INSN_OR | RS1(O7) | RS2(G0))) | |
3025 | break; | |
3026 | ||
3027 | /* The sequence was | |
3028 | or %o7, %g0, %rN | |
3029 | call foo | |
3030 | or %rN, %g0, %o7 | |
3031 | ||
3032 | If call foo was replaced with ba, replace | |
3033 | or %rN, %g0, %o7 with nop. */ | |
3034 | ||
3035 | reg = (y & RS1(~0)) >> 14; | |
3036 | if (reg != ((z & RD(~0)) >> 25) | |
3037 | || reg == G0 || reg == O7) | |
3038 | break; | |
3039 | ||
dc810e39 | 3040 | bfd_put_32 (input_bfd, (bfd_vma) INSN_NOP, |
f7775d95 JJ |
3041 | contents + rel->r_offset + 4); |
3042 | } | |
3043 | ||
3044 | } | |
3045 | } | |
3046 | } | |
3047 | } | |
3048 | ||
3049 | if (r == bfd_reloc_continue) | |
252b5132 RH |
3050 | r = _bfd_final_link_relocate (howto, input_bfd, input_section, |
3051 | contents, rel->r_offset, | |
3052 | relocation, rel->r_addend); | |
3053 | ||
252b5132 RH |
3054 | if (r != bfd_reloc_ok) |
3055 | { | |
3056 | switch (r) | |
3057 | { | |
3058 | default: | |
3059 | case bfd_reloc_outofrange: | |
3060 | abort (); | |
3061 | case bfd_reloc_overflow: | |
3062 | { | |
3063 | const char *name; | |
3064 | ||
3065 | if (h != NULL) | |
3066 | name = h->root.root.string; | |
3067 | else | |
3068 | { | |
3069 | name = bfd_elf_string_from_elf_section (input_bfd, | |
3070 | symtab_hdr->sh_link, | |
3071 | sym->st_name); | |
3072 | if (name == NULL) | |
b34976b6 | 3073 | return FALSE; |
252b5132 RH |
3074 | if (*name == '\0') |
3075 | name = bfd_section_name (input_bfd, sec); | |
3076 | } | |
3077 | if (! ((*info->callbacks->reloc_overflow) | |
3078 | (info, name, howto->name, (bfd_vma) 0, | |
3079 | input_bfd, input_section, rel->r_offset))) | |
b34976b6 | 3080 | return FALSE; |
252b5132 RH |
3081 | } |
3082 | break; | |
3083 | } | |
3084 | } | |
3085 | } | |
3086 | ||
b34976b6 | 3087 | return TRUE; |
252b5132 RH |
3088 | } |
3089 | ||
3090 | /* Finish up dynamic symbol handling. We set the contents of various | |
3091 | dynamic sections here. */ | |
3092 | ||
b34976b6 | 3093 | static bfd_boolean |
252b5132 RH |
3094 | elf32_sparc_finish_dynamic_symbol (output_bfd, info, h, sym) |
3095 | bfd *output_bfd; | |
3096 | struct bfd_link_info *info; | |
3097 | struct elf_link_hash_entry *h; | |
3098 | Elf_Internal_Sym *sym; | |
3099 | { | |
3100 | bfd *dynobj; | |
b9734f35 JJ |
3101 | struct elf32_sparc_link_hash_table *htab; |
3102 | ||
3103 | htab = elf32_sparc_hash_table (info); | |
3104 | dynobj = htab->elf.dynobj; | |
252b5132 RH |
3105 | |
3106 | if (h->plt.offset != (bfd_vma) -1) | |
3107 | { | |
3108 | asection *splt; | |
3109 | asection *srela; | |
3110 | Elf_Internal_Rela rela; | |
b34976b6 | 3111 | bfd_byte *loc; |
252b5132 RH |
3112 | |
3113 | /* This symbol has an entry in the procedure linkage table. Set | |
3114 | it up. */ | |
3115 | ||
3116 | BFD_ASSERT (h->dynindx != -1); | |
3117 | ||
b9734f35 JJ |
3118 | splt = htab->splt; |
3119 | srela = htab->srelplt; | |
252b5132 RH |
3120 | BFD_ASSERT (splt != NULL && srela != NULL); |
3121 | ||
3122 | /* Fill in the entry in the procedure linkage table. */ | |
3123 | bfd_put_32 (output_bfd, | |
3124 | PLT_ENTRY_WORD0 + h->plt.offset, | |
3125 | splt->contents + h->plt.offset); | |
3126 | bfd_put_32 (output_bfd, | |
3127 | (PLT_ENTRY_WORD1 | |
3128 | + (((- (h->plt.offset + 4)) >> 2) & 0x3fffff)), | |
3129 | splt->contents + h->plt.offset + 4); | |
dc810e39 | 3130 | bfd_put_32 (output_bfd, (bfd_vma) PLT_ENTRY_WORD2, |
252b5132 RH |
3131 | splt->contents + h->plt.offset + 8); |
3132 | ||
3133 | /* Fill in the entry in the .rela.plt section. */ | |
3134 | rela.r_offset = (splt->output_section->vma | |
3135 | + splt->output_offset | |
3136 | + h->plt.offset); | |
3137 | rela.r_info = ELF32_R_INFO (h->dynindx, R_SPARC_JMP_SLOT); | |
3138 | rela.r_addend = 0; | |
b34976b6 AM |
3139 | loc = srela->contents; |
3140 | loc += (h->plt.offset / PLT_ENTRY_SIZE - 4) * sizeof (Elf32_External_Rela); | |
3141 | bfd_elf32_swap_reloca_out (output_bfd, &rela, loc); | |
252b5132 RH |
3142 | |
3143 | if ((h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0) | |
3144 | { | |
3145 | /* Mark the symbol as undefined, rather than as defined in | |
3146 | the .plt section. Leave the value alone. */ | |
3147 | sym->st_shndx = SHN_UNDEF; | |
8701c1bc JJ |
3148 | /* If the symbol is weak, we do need to clear the value. |
3149 | Otherwise, the PLT entry would provide a definition for | |
3150 | the symbol even if the symbol wasn't defined anywhere, | |
3151 | and so the symbol would never be NULL. */ | |
3152 | if ((h->elf_link_hash_flags & ELF_LINK_HASH_REF_REGULAR_NONWEAK) | |
3153 | == 0) | |
3154 | sym->st_value = 0; | |
252b5132 RH |
3155 | } |
3156 | } | |
3157 | ||
b9734f35 JJ |
3158 | if (h->got.offset != (bfd_vma) -1 |
3159 | && elf32_sparc_hash_entry(h)->tls_type != GOT_TLS_GD | |
3160 | && elf32_sparc_hash_entry(h)->tls_type != GOT_TLS_IE) | |
252b5132 RH |
3161 | { |
3162 | asection *sgot; | |
3163 | asection *srela; | |
3164 | Elf_Internal_Rela rela; | |
b34976b6 | 3165 | bfd_byte *loc; |
252b5132 RH |
3166 | |
3167 | /* This symbol has an entry in the global offset table. Set it | |
3168 | up. */ | |
3169 | ||
b9734f35 JJ |
3170 | sgot = htab->sgot; |
3171 | srela = htab->srelgot; | |
252b5132 RH |
3172 | BFD_ASSERT (sgot != NULL && srela != NULL); |
3173 | ||
3174 | rela.r_offset = (sgot->output_section->vma | |
3175 | + sgot->output_offset | |
dc810e39 | 3176 | + (h->got.offset &~ (bfd_vma) 1)); |
252b5132 RH |
3177 | |
3178 | /* If this is a -Bsymbolic link, and the symbol is defined | |
3179 | locally, we just want to emit a RELATIVE reloc. Likewise if | |
3180 | the symbol was forced to be local because of a version file. | |
3181 | The entry in the global offset table will already have been | |
3182 | initialized in the relocate_section function. */ | |
3183 | if (info->shared | |
3184 | && (info->symbolic || h->dynindx == -1) | |
3185 | && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR)) | |
6b3ac709 JJ |
3186 | { |
3187 | asection *sec = h->root.u.def.section; | |
3188 | rela.r_info = ELF32_R_INFO (0, R_SPARC_RELATIVE); | |
3189 | rela.r_addend = (h->root.u.def.value | |
3190 | + sec->output_section->vma | |
3191 | + sec->output_offset); | |
3192 | } | |
252b5132 RH |
3193 | else |
3194 | { | |
252b5132 | 3195 | rela.r_info = ELF32_R_INFO (h->dynindx, R_SPARC_GLOB_DAT); |
6b3ac709 | 3196 | rela.r_addend = 0; |
252b5132 RH |
3197 | } |
3198 | ||
6b3ac709 JJ |
3199 | bfd_put_32 (output_bfd, (bfd_vma) 0, |
3200 | sgot->contents + (h->got.offset &~ (bfd_vma) 1)); | |
b34976b6 AM |
3201 | loc = srela->contents; |
3202 | loc += srela->reloc_count++ * sizeof (Elf32_External_Rela); | |
3203 | bfd_elf32_swap_reloca_out (output_bfd, &rela, loc); | |
252b5132 RH |
3204 | } |
3205 | ||
3206 | if ((h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_COPY) != 0) | |
3207 | { | |
3208 | asection *s; | |
3209 | Elf_Internal_Rela rela; | |
b34976b6 | 3210 | bfd_byte *loc; |
252b5132 RH |
3211 | |
3212 | /* This symbols needs a copy reloc. Set it up. */ | |
3213 | ||
3214 | BFD_ASSERT (h->dynindx != -1); | |
3215 | ||
3216 | s = bfd_get_section_by_name (h->root.u.def.section->owner, | |
3217 | ".rela.bss"); | |
3218 | BFD_ASSERT (s != NULL); | |
3219 | ||
3220 | rela.r_offset = (h->root.u.def.value | |
3221 | + h->root.u.def.section->output_section->vma | |
3222 | + h->root.u.def.section->output_offset); | |
3223 | rela.r_info = ELF32_R_INFO (h->dynindx, R_SPARC_COPY); | |
3224 | rela.r_addend = 0; | |
b34976b6 AM |
3225 | loc = s->contents + s->reloc_count++ * sizeof (Elf32_External_Rela); |
3226 | bfd_elf32_swap_reloca_out (output_bfd, &rela, loc); | |
252b5132 RH |
3227 | } |
3228 | ||
3229 | /* Mark some specially defined symbols as absolute. */ | |
3230 | if (strcmp (h->root.root.string, "_DYNAMIC") == 0 | |
3231 | || strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0 | |
3232 | || strcmp (h->root.root.string, "_PROCEDURE_LINKAGE_TABLE_") == 0) | |
3233 | sym->st_shndx = SHN_ABS; | |
3234 | ||
b34976b6 | 3235 | return TRUE; |
252b5132 RH |
3236 | } |
3237 | ||
3238 | /* Finish up the dynamic sections. */ | |
3239 | ||
b34976b6 | 3240 | static bfd_boolean |
252b5132 RH |
3241 | elf32_sparc_finish_dynamic_sections (output_bfd, info) |
3242 | bfd *output_bfd; | |
3243 | struct bfd_link_info *info; | |
3244 | { | |
3245 | bfd *dynobj; | |
3246 | asection *sdyn; | |
b9734f35 JJ |
3247 | struct elf32_sparc_link_hash_table *htab; |
3248 | ||
3249 | htab = elf32_sparc_hash_table (info); | |
3250 | dynobj = htab->elf.dynobj; | |
252b5132 RH |
3251 | |
3252 | sdyn = bfd_get_section_by_name (dynobj, ".dynamic"); | |
3253 | ||
3254 | if (elf_hash_table (info)->dynamic_sections_created) | |
3255 | { | |
3256 | asection *splt; | |
3257 | Elf32_External_Dyn *dyncon, *dynconend; | |
3258 | ||
3259 | splt = bfd_get_section_by_name (dynobj, ".plt"); | |
3260 | BFD_ASSERT (splt != NULL && sdyn != NULL); | |
3261 | ||
3262 | dyncon = (Elf32_External_Dyn *) sdyn->contents; | |
3263 | dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->_raw_size); | |
3264 | for (; dyncon < dynconend; dyncon++) | |
3265 | { | |
3266 | Elf_Internal_Dyn dyn; | |
3267 | const char *name; | |
b34976b6 | 3268 | bfd_boolean size; |
252b5132 RH |
3269 | |
3270 | bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn); | |
3271 | ||
3272 | switch (dyn.d_tag) | |
3273 | { | |
b34976b6 AM |
3274 | case DT_PLTGOT: name = ".plt"; size = FALSE; break; |
3275 | case DT_PLTRELSZ: name = ".rela.plt"; size = TRUE; break; | |
3276 | case DT_JMPREL: name = ".rela.plt"; size = FALSE; break; | |
3277 | default: name = NULL; size = FALSE; break; | |
252b5132 RH |
3278 | } |
3279 | ||
3280 | if (name != NULL) | |
3281 | { | |
3282 | asection *s; | |
3283 | ||
3284 | s = bfd_get_section_by_name (output_bfd, name); | |
3285 | if (s == NULL) | |
3286 | dyn.d_un.d_val = 0; | |
3287 | else | |
3288 | { | |
3289 | if (! size) | |
3290 | dyn.d_un.d_ptr = s->vma; | |
3291 | else | |
3292 | { | |
3293 | if (s->_cooked_size != 0) | |
3294 | dyn.d_un.d_val = s->_cooked_size; | |
3295 | else | |
3296 | dyn.d_un.d_val = s->_raw_size; | |
3297 | } | |
3298 | } | |
3299 | bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon); | |
3300 | } | |
3301 | } | |
3302 | ||
3303 | /* Clear the first four entries in the procedure linkage table, | |
3304 | and put a nop in the last four bytes. */ | |
3305 | if (splt->_raw_size > 0) | |
3306 | { | |
3307 | memset (splt->contents, 0, 4 * PLT_ENTRY_SIZE); | |
dc810e39 | 3308 | bfd_put_32 (output_bfd, (bfd_vma) SPARC_NOP, |
252b5132 RH |
3309 | splt->contents + splt->_raw_size - 4); |
3310 | } | |
3311 | ||
3312 | elf_section_data (splt->output_section)->this_hdr.sh_entsize = | |
3313 | PLT_ENTRY_SIZE; | |
3314 | } | |
3315 | ||
3316 | /* Set the first entry in the global offset table to the address of | |
3317 | the dynamic section. */ | |
b9734f35 | 3318 | if (htab->sgot && htab->sgot->_raw_size > 0) |
252b5132 RH |
3319 | { |
3320 | if (sdyn == NULL) | |
b9734f35 | 3321 | bfd_put_32 (output_bfd, (bfd_vma) 0, htab->sgot->contents); |
252b5132 RH |
3322 | else |
3323 | bfd_put_32 (output_bfd, | |
3324 | sdyn->output_section->vma + sdyn->output_offset, | |
b9734f35 | 3325 | htab->sgot->contents); |
252b5132 RH |
3326 | } |
3327 | ||
b9734f35 JJ |
3328 | if (htab->sgot) |
3329 | elf_section_data (htab->sgot->output_section)->this_hdr.sh_entsize = 4; | |
252b5132 | 3330 | |
b34976b6 | 3331 | return TRUE; |
252b5132 RH |
3332 | } |
3333 | \f | |
3334 | /* Functions for dealing with the e_flags field. | |
3335 | ||
3336 | We don't define set_private_flags or copy_private_bfd_data because | |
3337 | the only currently defined values are based on the bfd mach number, | |
3338 | so we use the latter instead and defer setting e_flags until the | |
3339 | file is written out. */ | |
3340 | ||
3341 | /* Merge backend specific data from an object file to the output | |
3342 | object file when linking. */ | |
3343 | ||
b34976b6 | 3344 | static bfd_boolean |
252b5132 RH |
3345 | elf32_sparc_merge_private_bfd_data (ibfd, obfd) |
3346 | bfd *ibfd; | |
3347 | bfd *obfd; | |
3348 | { | |
b34976b6 | 3349 | bfd_boolean error; |
5f771d47 ILT |
3350 | /* FIXME: This should not be static. */ |
3351 | static unsigned long previous_ibfd_e_flags = (unsigned long) -1; | |
252b5132 RH |
3352 | |
3353 | if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour | |
3354 | || bfd_get_flavour (obfd) != bfd_target_elf_flavour) | |
b34976b6 | 3355 | return TRUE; |
252b5132 | 3356 | |
b34976b6 | 3357 | error = FALSE; |
252b5132 | 3358 | |
252b5132 RH |
3359 | if (bfd_get_mach (ibfd) >= bfd_mach_sparc_v9) |
3360 | { | |
b34976b6 | 3361 | error = TRUE; |
252b5132 RH |
3362 | (*_bfd_error_handler) |
3363 | (_("%s: compiled for a 64 bit system and target is 32 bit"), | |
8f615d07 | 3364 | bfd_archive_filename (ibfd)); |
252b5132 | 3365 | } |
37fb6db1 ILT |
3366 | else if ((ibfd->flags & DYNAMIC) == 0) |
3367 | { | |
3368 | if (bfd_get_mach (obfd) < bfd_get_mach (ibfd)) | |
3369 | bfd_set_arch_mach (obfd, bfd_arch_sparc, bfd_get_mach (ibfd)); | |
3370 | } | |
252b5132 RH |
3371 | |
3372 | if (((elf_elfheader (ibfd)->e_flags & EF_SPARC_LEDATA) | |
3373 | != previous_ibfd_e_flags) | |
5f771d47 | 3374 | && previous_ibfd_e_flags != (unsigned long) -1) |
252b5132 RH |
3375 | { |
3376 | (*_bfd_error_handler) | |
3377 | (_("%s: linking little endian files with big endian files"), | |
8f615d07 | 3378 | bfd_archive_filename (ibfd)); |
b34976b6 | 3379 | error = TRUE; |
252b5132 RH |
3380 | } |
3381 | previous_ibfd_e_flags = elf_elfheader (ibfd)->e_flags & EF_SPARC_LEDATA; | |
3382 | ||
3383 | if (error) | |
3384 | { | |
3385 | bfd_set_error (bfd_error_bad_value); | |
b34976b6 | 3386 | return FALSE; |
252b5132 RH |
3387 | } |
3388 | ||
b34976b6 | 3389 | return TRUE; |
252b5132 RH |
3390 | } |
3391 | \f | |
3392 | /* Set the right machine number. */ | |
3393 | ||
b34976b6 | 3394 | static bfd_boolean |
252b5132 RH |
3395 | elf32_sparc_object_p (abfd) |
3396 | bfd *abfd; | |
3397 | { | |
b9734f35 JJ |
3398 | /* Allocate our special target data. */ |
3399 | struct elf32_sparc_obj_tdata *new_tdata; | |
3400 | bfd_size_type amt = sizeof (struct elf32_sparc_obj_tdata); | |
3401 | new_tdata = bfd_zalloc (abfd, amt); | |
3402 | if (new_tdata == NULL) | |
3403 | return FALSE; | |
3404 | new_tdata->root = *abfd->tdata.elf_obj_data; | |
3405 | abfd->tdata.any = new_tdata; | |
3406 | ||
252b5132 RH |
3407 | if (elf_elfheader (abfd)->e_machine == EM_SPARC32PLUS) |
3408 | { | |
19f7b010 JJ |
3409 | if (elf_elfheader (abfd)->e_flags & EF_SPARC_SUN_US3) |
3410 | return bfd_default_set_arch_mach (abfd, bfd_arch_sparc, | |
3411 | bfd_mach_sparc_v8plusb); | |
3412 | else if (elf_elfheader (abfd)->e_flags & EF_SPARC_SUN_US1) | |
252b5132 RH |
3413 | return bfd_default_set_arch_mach (abfd, bfd_arch_sparc, |
3414 | bfd_mach_sparc_v8plusa); | |
3415 | else if (elf_elfheader (abfd)->e_flags & EF_SPARC_32PLUS) | |
3416 | return bfd_default_set_arch_mach (abfd, bfd_arch_sparc, | |
3417 | bfd_mach_sparc_v8plus); | |
3418 | else | |
b34976b6 | 3419 | return FALSE; |
252b5132 RH |
3420 | } |
3421 | else if (elf_elfheader (abfd)->e_flags & EF_SPARC_LEDATA) | |
3422 | return bfd_default_set_arch_mach (abfd, bfd_arch_sparc, | |
20278fa3 | 3423 | bfd_mach_sparc_sparclite_le); |
252b5132 RH |
3424 | else |
3425 | return bfd_default_set_arch_mach (abfd, bfd_arch_sparc, bfd_mach_sparc); | |
3426 | } | |
3427 | ||
3428 | /* The final processing done just before writing out the object file. | |
3429 | We need to set the e_machine field appropriately. */ | |
3430 | ||
3431 | static void | |
3432 | elf32_sparc_final_write_processing (abfd, linker) | |
3433 | bfd *abfd; | |
b34976b6 | 3434 | bfd_boolean linker ATTRIBUTE_UNUSED; |
252b5132 RH |
3435 | { |
3436 | switch (bfd_get_mach (abfd)) | |
3437 | { | |
3438 | case bfd_mach_sparc : | |
3439 | break; /* nothing to do */ | |
3440 | case bfd_mach_sparc_v8plus : | |
3441 | elf_elfheader (abfd)->e_machine = EM_SPARC32PLUS; | |
3442 | elf_elfheader (abfd)->e_flags &=~ EF_SPARC_32PLUS_MASK; | |
3443 | elf_elfheader (abfd)->e_flags |= EF_SPARC_32PLUS; | |
3444 | break; | |
3445 | case bfd_mach_sparc_v8plusa : | |
3446 | elf_elfheader (abfd)->e_machine = EM_SPARC32PLUS; | |
3447 | elf_elfheader (abfd)->e_flags &=~ EF_SPARC_32PLUS_MASK; | |
3448 | elf_elfheader (abfd)->e_flags |= EF_SPARC_32PLUS | EF_SPARC_SUN_US1; | |
3449 | break; | |
19f7b010 JJ |
3450 | case bfd_mach_sparc_v8plusb : |
3451 | elf_elfheader (abfd)->e_machine = EM_SPARC32PLUS; | |
3452 | elf_elfheader (abfd)->e_flags &=~ EF_SPARC_32PLUS_MASK; | |
3453 | elf_elfheader (abfd)->e_flags |= EF_SPARC_32PLUS | EF_SPARC_SUN_US1 | |
3454 | | EF_SPARC_SUN_US3; | |
3455 | break; | |
252b5132 RH |
3456 | case bfd_mach_sparc_sparclite_le : |
3457 | elf_elfheader (abfd)->e_machine = EM_SPARC; | |
3458 | elf_elfheader (abfd)->e_flags |= EF_SPARC_LEDATA; | |
3459 | break; | |
3460 | default : | |
3461 | abort (); | |
3462 | break; | |
3463 | } | |
3464 | } | |
db6751f2 JJ |
3465 | |
3466 | static enum elf_reloc_type_class | |
f51e552e AM |
3467 | elf32_sparc_reloc_type_class (rela) |
3468 | const Elf_Internal_Rela *rela; | |
db6751f2 | 3469 | { |
f51e552e | 3470 | switch ((int) ELF32_R_TYPE (rela->r_info)) |
db6751f2 JJ |
3471 | { |
3472 | case R_SPARC_RELATIVE: | |
3473 | return reloc_class_relative; | |
3474 | case R_SPARC_JMP_SLOT: | |
3475 | return reloc_class_plt; | |
3476 | case R_SPARC_COPY: | |
3477 | return reloc_class_copy; | |
3478 | default: | |
3479 | return reloc_class_normal; | |
3480 | } | |
3481 | } | |
252b5132 RH |
3482 | \f |
3483 | #define TARGET_BIG_SYM bfd_elf32_sparc_vec | |
3484 | #define TARGET_BIG_NAME "elf32-sparc" | |
3485 | #define ELF_ARCH bfd_arch_sparc | |
3486 | #define ELF_MACHINE_CODE EM_SPARC | |
3487 | #define ELF_MACHINE_ALT1 EM_SPARC32PLUS | |
3488 | #define ELF_MAXPAGESIZE 0x10000 | |
3489 | ||
3490 | #define bfd_elf32_bfd_reloc_type_lookup elf32_sparc_reloc_type_lookup | |
b9734f35 JJ |
3491 | #define bfd_elf32_bfd_link_hash_table_create \ |
3492 | elf32_sparc_link_hash_table_create | |
f7775d95 | 3493 | #define bfd_elf32_bfd_relax_section elf32_sparc_relax_section |
71e5db1c | 3494 | #define bfd_elf32_new_section_hook elf32_sparc_new_section_hook |
252b5132 | 3495 | #define elf_info_to_howto elf32_sparc_info_to_howto |
b9734f35 JJ |
3496 | #define elf_backend_copy_indirect_symbol \ |
3497 | elf32_sparc_copy_indirect_symbol | |
252b5132 | 3498 | #define elf_backend_create_dynamic_sections \ |
b9734f35 | 3499 | elf32_sparc_create_dynamic_sections |
252b5132 RH |
3500 | #define elf_backend_check_relocs elf32_sparc_check_relocs |
3501 | #define elf_backend_adjust_dynamic_symbol \ | |
3502 | elf32_sparc_adjust_dynamic_symbol | |
3503 | #define elf_backend_size_dynamic_sections \ | |
3504 | elf32_sparc_size_dynamic_sections | |
3505 | #define elf_backend_relocate_section elf32_sparc_relocate_section | |
3506 | #define elf_backend_finish_dynamic_symbol \ | |
3507 | elf32_sparc_finish_dynamic_symbol | |
3508 | #define elf_backend_finish_dynamic_sections \ | |
3509 | elf32_sparc_finish_dynamic_sections | |
3510 | #define bfd_elf32_bfd_merge_private_bfd_data \ | |
3511 | elf32_sparc_merge_private_bfd_data | |
b9734f35 | 3512 | #define bfd_elf32_mkobject elf32_sparc_mkobject |
252b5132 RH |
3513 | #define elf_backend_object_p elf32_sparc_object_p |
3514 | #define elf_backend_final_write_processing \ | |
3515 | elf32_sparc_final_write_processing | |
3516 | #define elf_backend_gc_mark_hook elf32_sparc_gc_mark_hook | |
3517 | #define elf_backend_gc_sweep_hook elf32_sparc_gc_sweep_hook | |
db6751f2 | 3518 | #define elf_backend_reloc_type_class elf32_sparc_reloc_type_class |
252b5132 RH |
3519 | |
3520 | #define elf_backend_can_gc_sections 1 | |
b9734f35 | 3521 | #define elf_backend_can_refcount 1 |
252b5132 RH |
3522 | #define elf_backend_want_got_plt 0 |
3523 | #define elf_backend_plt_readonly 0 | |
3524 | #define elf_backend_want_plt_sym 1 | |
3525 | #define elf_backend_got_header_size 4 | |
3526 | #define elf_backend_plt_header_size (4*PLT_ENTRY_SIZE) | |
f0fe0e16 | 3527 | #define elf_backend_rela_normal 1 |
252b5132 RH |
3528 | |
3529 | #include "elf32-target.h" |