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252b5132 | 1 | /* SPARC-specific support for 32-bit ELF |
f0abc2a1 | 2 | Copyright 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, |
b2a8e766 | 3 | 2003, 2004 Free Software Foundation, Inc. |
252b5132 | 4 | |
ae9a127f | 5 | This file is part of BFD, the Binary File Descriptor library. |
252b5132 | 6 | |
ae9a127f NC |
7 | This program is free software; you can redistribute it and/or modify |
8 | it under the terms of the GNU General Public License as published by | |
9 | the Free Software Foundation; either version 2 of the License, or | |
10 | (at your option) any later version. | |
252b5132 | 11 | |
ae9a127f NC |
12 | This program is distributed in the hope that it will be useful, |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
252b5132 | 16 | |
ae9a127f NC |
17 | You should have received a copy of the GNU General Public License |
18 | along with this program; if not, write to the Free Software | |
19 | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ | |
252b5132 RH |
20 | |
21 | #include "bfd.h" | |
22 | #include "sysdep.h" | |
23 | #include "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 *)); | |
26e41594 AM |
66 | static bfd_boolean create_got_section |
67 | PARAMS ((bfd *, struct bfd_link_info *)); | |
b9734f35 JJ |
68 | static bfd_boolean elf32_sparc_create_dynamic_sections |
69 | PARAMS ((bfd *, struct bfd_link_info *)); | |
70 | static void elf32_sparc_copy_indirect_symbol | |
9c5bfbb7 | 71 | PARAMS ((const struct elf_backend_data *, struct elf_link_hash_entry *, |
b9734f35 JJ |
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 | 293 | default: |
26e41594 AM |
294 | for (i = 0; |
295 | i < sizeof (sparc_reloc_map) / sizeof (struct elf_reloc_map); | |
296 | i++) | |
297 | { | |
298 | if (sparc_reloc_map[i].bfd_reloc_val == code) | |
299 | return (_bfd_sparc_elf_howto_table | |
300 | + (int) sparc_reloc_map[i].elf_reloc_val); | |
301 | } | |
252b5132 RH |
302 | } |
303 | bfd_set_error (bfd_error_bad_value); | |
304 | return NULL; | |
305 | } | |
306 | ||
307 | /* We need to use ELF32_R_TYPE so we have our own copy of this function, | |
308 | and elf64-sparc.c has its own copy. */ | |
309 | ||
310 | static void | |
311 | elf32_sparc_info_to_howto (abfd, cache_ptr, dst) | |
5f771d47 | 312 | bfd *abfd ATTRIBUTE_UNUSED; |
252b5132 RH |
313 | arelent *cache_ptr; |
314 | Elf_Internal_Rela *dst; | |
315 | { | |
60dac299 RH |
316 | switch (ELF32_R_TYPE(dst->r_info)) |
317 | { | |
318 | case R_SPARC_GNU_VTINHERIT: | |
319 | cache_ptr->howto = &elf32_sparc_vtinherit_howto; | |
320 | break; | |
321 | ||
322 | case R_SPARC_GNU_VTENTRY: | |
323 | cache_ptr->howto = &elf32_sparc_vtentry_howto; | |
324 | break; | |
325 | ||
b9734f35 JJ |
326 | case R_SPARC_REV32: |
327 | cache_ptr->howto = &elf32_sparc_rev32_howto; | |
328 | break; | |
329 | ||
60dac299 RH |
330 | default: |
331 | BFD_ASSERT (ELF32_R_TYPE(dst->r_info) < (unsigned int) R_SPARC_max_std); | |
332 | cache_ptr->howto = &_bfd_sparc_elf_howto_table[ELF32_R_TYPE(dst->r_info)]; | |
333 | } | |
252b5132 RH |
334 | } |
335 | \f | |
336 | /* For unsupported relocs. */ | |
337 | ||
338 | static bfd_reloc_status_type | |
339 | sparc_elf_notsupported_reloc (abfd, | |
340 | reloc_entry, | |
341 | symbol, | |
342 | data, | |
343 | input_section, | |
344 | output_bfd, | |
345 | error_message) | |
5f771d47 ILT |
346 | bfd *abfd ATTRIBUTE_UNUSED; |
347 | arelent *reloc_entry ATTRIBUTE_UNUSED; | |
348 | asymbol *symbol ATTRIBUTE_UNUSED; | |
349 | PTR data ATTRIBUTE_UNUSED; | |
350 | asection *input_section ATTRIBUTE_UNUSED; | |
351 | bfd *output_bfd ATTRIBUTE_UNUSED; | |
352 | char **error_message ATTRIBUTE_UNUSED; | |
252b5132 RH |
353 | { |
354 | return bfd_reloc_notsupported; | |
355 | } | |
356 | ||
357 | /* Handle the WDISP16 reloc. */ | |
358 | ||
359 | static bfd_reloc_status_type | |
360 | sparc_elf_wdisp16_reloc (abfd, | |
361 | reloc_entry, | |
362 | symbol, | |
363 | data, | |
364 | input_section, | |
365 | output_bfd, | |
366 | error_message) | |
367 | bfd *abfd; | |
368 | arelent *reloc_entry; | |
369 | asymbol *symbol; | |
370 | PTR data; | |
371 | asection *input_section; | |
372 | bfd *output_bfd; | |
5f771d47 | 373 | char **error_message ATTRIBUTE_UNUSED; |
252b5132 RH |
374 | { |
375 | bfd_vma relocation; | |
376 | bfd_vma x; | |
377 | ||
378 | if (output_bfd != (bfd *) NULL | |
379 | && (symbol->flags & BSF_SECTION_SYM) == 0 | |
380 | && (! reloc_entry->howto->partial_inplace | |
381 | || reloc_entry->addend == 0)) | |
382 | { | |
383 | reloc_entry->address += input_section->output_offset; | |
384 | return bfd_reloc_ok; | |
385 | } | |
386 | ||
387 | if (output_bfd != NULL) | |
388 | return bfd_reloc_continue; | |
389 | ||
07515404 | 390 | if (reloc_entry->address > bfd_get_section_limit (abfd, input_section)) |
252b5132 RH |
391 | return bfd_reloc_outofrange; |
392 | ||
393 | relocation = (symbol->value | |
394 | + symbol->section->output_section->vma | |
395 | + symbol->section->output_offset); | |
396 | relocation += reloc_entry->addend; | |
397 | relocation -= (input_section->output_section->vma | |
398 | + input_section->output_offset); | |
399 | relocation -= reloc_entry->address; | |
400 | ||
401 | x = bfd_get_32 (abfd, (bfd_byte *) data + reloc_entry->address); | |
402 | x |= ((((relocation >> 2) & 0xc000) << 6) | |
403 | | ((relocation >> 2) & 0x3fff)); | |
404 | bfd_put_32 (abfd, x, (bfd_byte *) data + reloc_entry->address); | |
405 | ||
406 | if ((bfd_signed_vma) relocation < - 0x40000 | |
407 | || (bfd_signed_vma) relocation > 0x3ffff) | |
408 | return bfd_reloc_overflow; | |
409 | else | |
410 | return bfd_reloc_ok; | |
411 | } | |
b9734f35 JJ |
412 | |
413 | /* Handle the HIX22 reloc. */ | |
414 | ||
415 | static bfd_reloc_status_type | |
416 | sparc_elf_hix22_reloc (abfd, | |
417 | reloc_entry, | |
418 | symbol, | |
419 | data, | |
420 | input_section, | |
421 | output_bfd, | |
422 | error_message) | |
423 | bfd *abfd; | |
424 | arelent *reloc_entry; | |
425 | asymbol *symbol; | |
426 | PTR data; | |
427 | asection *input_section; | |
428 | bfd *output_bfd; | |
429 | char **error_message ATTRIBUTE_UNUSED; | |
430 | { | |
431 | bfd_vma relocation; | |
432 | bfd_vma insn; | |
433 | ||
434 | if (output_bfd != (bfd *) NULL | |
435 | && (symbol->flags & BSF_SECTION_SYM) == 0) | |
436 | { | |
437 | reloc_entry->address += input_section->output_offset; | |
438 | return bfd_reloc_ok; | |
439 | } | |
440 | ||
441 | if (output_bfd != NULL) | |
442 | return bfd_reloc_continue; | |
443 | ||
07515404 | 444 | if (reloc_entry->address > bfd_get_section_limit (abfd, input_section)) |
b9734f35 JJ |
445 | return bfd_reloc_outofrange; |
446 | ||
447 | relocation = (symbol->value | |
448 | + symbol->section->output_section->vma | |
449 | + symbol->section->output_offset); | |
450 | relocation += reloc_entry->addend; | |
451 | insn = bfd_get_32 (abfd, (bfd_byte *) data + reloc_entry->address); | |
452 | ||
453 | insn = (insn &~ (bfd_vma) 0x3fffff) | (((~relocation) >> 10) & 0x3fffff); | |
454 | bfd_put_32 (abfd, insn, (bfd_byte *) data + reloc_entry->address); | |
455 | ||
456 | return bfd_reloc_ok; | |
457 | } | |
458 | ||
459 | /* Handle the LOX10 reloc. */ | |
460 | ||
461 | static bfd_reloc_status_type | |
462 | sparc_elf_lox10_reloc (abfd, | |
463 | reloc_entry, | |
464 | symbol, | |
465 | data, | |
466 | input_section, | |
467 | output_bfd, | |
468 | error_message) | |
469 | bfd *abfd; | |
470 | arelent *reloc_entry; | |
471 | asymbol *symbol; | |
472 | PTR data; | |
473 | asection *input_section; | |
474 | bfd *output_bfd; | |
475 | char **error_message ATTRIBUTE_UNUSED; | |
476 | { | |
477 | bfd_vma relocation; | |
478 | bfd_vma insn; | |
479 | ||
480 | if (output_bfd != (bfd *) NULL | |
481 | && (symbol->flags & BSF_SECTION_SYM) == 0) | |
482 | { | |
483 | reloc_entry->address += input_section->output_offset; | |
484 | return bfd_reloc_ok; | |
485 | } | |
486 | ||
487 | if (output_bfd != NULL) | |
488 | return bfd_reloc_continue; | |
489 | ||
07515404 | 490 | if (reloc_entry->address > bfd_get_section_limit (abfd, input_section)) |
b9734f35 JJ |
491 | return bfd_reloc_outofrange; |
492 | ||
493 | relocation = (symbol->value | |
494 | + symbol->section->output_section->vma | |
495 | + symbol->section->output_offset); | |
496 | relocation += reloc_entry->addend; | |
497 | insn = bfd_get_32 (abfd, (bfd_byte *) data + reloc_entry->address); | |
498 | ||
499 | insn = (insn &~ (bfd_vma) 0x1fff) | 0x1c00 | (relocation & 0x3ff); | |
500 | bfd_put_32 (abfd, insn, (bfd_byte *) data + reloc_entry->address); | |
501 | ||
502 | return bfd_reloc_ok; | |
503 | } | |
0647ed71 MK |
504 | \f |
505 | /* Support for core dump NOTE sections. */ | |
506 | ||
507 | static bfd_boolean | |
508 | elf32_sparc_grok_psinfo (bfd *abfd, Elf_Internal_Note *note) | |
509 | { | |
510 | switch (note->descsz) | |
511 | { | |
512 | default: | |
513 | return FALSE; | |
514 | ||
515 | case 260: /* Solaris prpsinfo_t. */ | |
516 | elf_tdata (abfd)->core_program | |
517 | = _bfd_elfcore_strndup (abfd, note->descdata + 84, 16); | |
518 | elf_tdata (abfd)->core_command | |
519 | = _bfd_elfcore_strndup (abfd, note->descdata + 100, 80); | |
520 | break; | |
521 | ||
522 | case 336: /* Solaris psinfo_t. */ | |
523 | elf_tdata (abfd)->core_program | |
524 | = _bfd_elfcore_strndup (abfd, note->descdata + 88, 16); | |
525 | elf_tdata (abfd)->core_command | |
526 | = _bfd_elfcore_strndup (abfd, note->descdata + 104, 80); | |
527 | break; | |
528 | } | |
529 | ||
530 | return TRUE; | |
531 | } | |
532 | ||
252b5132 RH |
533 | \f |
534 | /* Functions for the SPARC ELF linker. */ | |
535 | ||
536 | /* The name of the dynamic interpreter. This is put in the .interp | |
537 | section. */ | |
538 | ||
539 | #define ELF_DYNAMIC_INTERPRETER "/usr/lib/ld.so.1" | |
540 | ||
541 | /* The nop opcode we use. */ | |
542 | ||
543 | #define SPARC_NOP 0x01000000 | |
544 | ||
545 | /* The size in bytes of an entry in the procedure linkage table. */ | |
546 | ||
547 | #define PLT_ENTRY_SIZE 12 | |
548 | ||
549 | /* The first four entries in a procedure linkage table are reserved, | |
550 | and the initial contents are unimportant (we zero them out). | |
551 | Subsequent entries look like this. See the SVR4 ABI SPARC | |
552 | supplement to see how this works. */ | |
553 | ||
554 | /* sethi %hi(.-.plt0),%g1. We fill in the address later. */ | |
555 | #define PLT_ENTRY_WORD0 0x03000000 | |
556 | /* b,a .plt0. We fill in the offset later. */ | |
557 | #define PLT_ENTRY_WORD1 0x30800000 | |
558 | /* nop. */ | |
559 | #define PLT_ENTRY_WORD2 SPARC_NOP | |
560 | ||
b9734f35 JJ |
561 | /* The SPARC linker needs to keep track of the number of relocs that it |
562 | decides to copy as dynamic relocs in check_relocs for each symbol. | |
563 | This is so that it can later discard them if they are found to be | |
564 | unnecessary. We store the information in a field extending the | |
565 | regular ELF linker hash table. */ | |
566 | ||
567 | struct elf32_sparc_dyn_relocs | |
568 | { | |
569 | struct elf32_sparc_dyn_relocs *next; | |
570 | ||
571 | /* The input section of the reloc. */ | |
572 | asection *sec; | |
573 | ||
574 | /* Total number of relocs copied for the input section. */ | |
575 | bfd_size_type count; | |
576 | ||
577 | /* Number of pc-relative relocs copied for the input section. */ | |
578 | bfd_size_type pc_count; | |
579 | }; | |
580 | ||
581 | /* SPARC ELF linker hash entry. */ | |
582 | ||
583 | struct elf32_sparc_link_hash_entry | |
584 | { | |
585 | struct elf_link_hash_entry elf; | |
586 | ||
587 | /* Track dynamic relocs copied for this symbol. */ | |
588 | struct elf32_sparc_dyn_relocs *dyn_relocs; | |
589 | ||
590 | #define GOT_UNKNOWN 0 | |
591 | #define GOT_NORMAL 1 | |
592 | #define GOT_TLS_GD 2 | |
593 | #define GOT_TLS_IE 3 | |
594 | unsigned char tls_type; | |
595 | }; | |
596 | ||
597 | #define elf32_sparc_hash_entry(ent) ((struct elf32_sparc_link_hash_entry *)(ent)) | |
598 | ||
599 | struct elf32_sparc_obj_tdata | |
600 | { | |
601 | struct elf_obj_tdata root; | |
602 | ||
603 | /* tls_type for each local got entry. */ | |
604 | char *local_got_tls_type; | |
605 | ||
606 | /* TRUE if TLS GD relocs has been seen for this object. */ | |
607 | bfd_boolean has_tlsgd; | |
608 | }; | |
609 | ||
610 | #define elf32_sparc_tdata(abfd) \ | |
611 | ((struct elf32_sparc_obj_tdata *) (abfd)->tdata.any) | |
612 | ||
613 | #define elf32_sparc_local_got_tls_type(abfd) \ | |
614 | (elf32_sparc_tdata (abfd)->local_got_tls_type) | |
615 | ||
616 | static bfd_boolean | |
617 | elf32_sparc_mkobject (abfd) | |
618 | bfd *abfd; | |
619 | { | |
620 | bfd_size_type amt = sizeof (struct elf32_sparc_obj_tdata); | |
621 | abfd->tdata.any = bfd_zalloc (abfd, amt); | |
622 | if (abfd->tdata.any == NULL) | |
623 | return FALSE; | |
624 | return TRUE; | |
625 | } | |
626 | ||
627 | /* SPARC ELF linker hash table. */ | |
628 | ||
629 | struct elf32_sparc_link_hash_table | |
630 | { | |
631 | struct elf_link_hash_table elf; | |
632 | ||
633 | /* Short-cuts to get to dynamic linker sections. */ | |
634 | asection *sgot; | |
635 | asection *srelgot; | |
636 | asection *splt; | |
637 | asection *srelplt; | |
638 | asection *sdynbss; | |
639 | asection *srelbss; | |
640 | ||
641 | union { | |
642 | bfd_signed_vma refcount; | |
643 | bfd_vma offset; | |
644 | } tls_ldm_got; | |
645 | ||
646 | /* Small local sym to section mapping cache. */ | |
647 | struct sym_sec_cache sym_sec; | |
648 | }; | |
649 | ||
650 | /* Get the SPARC ELF linker hash table from a link_info structure. */ | |
651 | ||
652 | #define elf32_sparc_hash_table(p) \ | |
653 | ((struct elf32_sparc_link_hash_table *) ((p)->hash)) | |
654 | ||
655 | /* Create an entry in an i386 ELF linker hash table. */ | |
656 | ||
657 | static struct bfd_hash_entry * | |
658 | link_hash_newfunc (entry, table, string) | |
659 | struct bfd_hash_entry *entry; | |
660 | struct bfd_hash_table *table; | |
661 | const char *string; | |
662 | { | |
663 | /* Allocate the structure if it has not already been allocated by a | |
664 | subclass. */ | |
665 | if (entry == NULL) | |
666 | { | |
667 | entry = bfd_hash_allocate (table, | |
26e41594 | 668 | sizeof (struct elf32_sparc_link_hash_entry)); |
b9734f35 | 669 | if (entry == NULL) |
26e41594 | 670 | return entry; |
b9734f35 JJ |
671 | } |
672 | ||
673 | /* Call the allocation method of the superclass. */ | |
674 | entry = _bfd_elf_link_hash_newfunc (entry, table, string); | |
675 | if (entry != NULL) | |
676 | { | |
677 | struct elf32_sparc_link_hash_entry *eh; | |
678 | ||
679 | eh = (struct elf32_sparc_link_hash_entry *) entry; | |
680 | eh->dyn_relocs = NULL; | |
681 | eh->tls_type = GOT_UNKNOWN; | |
682 | } | |
683 | ||
684 | return entry; | |
685 | } | |
686 | ||
687 | /* Create a SPARC ELF linker hash table. */ | |
688 | ||
689 | static struct bfd_link_hash_table * | |
690 | elf32_sparc_link_hash_table_create (abfd) | |
691 | bfd *abfd; | |
692 | { | |
693 | struct elf32_sparc_link_hash_table *ret; | |
694 | bfd_size_type amt = sizeof (struct elf32_sparc_link_hash_table); | |
695 | ||
696 | ret = (struct elf32_sparc_link_hash_table *) bfd_malloc (amt); | |
697 | if (ret == NULL) | |
698 | return NULL; | |
699 | ||
700 | if (! _bfd_elf_link_hash_table_init (&ret->elf, abfd, link_hash_newfunc)) | |
701 | { | |
702 | free (ret); | |
703 | return NULL; | |
704 | } | |
705 | ||
706 | ret->sgot = NULL; | |
707 | ret->srelgot = NULL; | |
708 | ret->splt = NULL; | |
709 | ret->srelplt = NULL; | |
710 | ret->sdynbss = NULL; | |
711 | ret->srelbss = NULL; | |
712 | ret->tls_ldm_got.refcount = 0; | |
713 | ret->sym_sec.abfd = NULL; | |
714 | ||
715 | return &ret->elf.root; | |
716 | } | |
717 | ||
718 | /* Create .got and .rela.got sections in DYNOBJ, and set up | |
719 | shortcuts to them in our hash table. */ | |
720 | ||
721 | static bfd_boolean | |
722 | create_got_section (dynobj, info) | |
723 | bfd *dynobj; | |
724 | struct bfd_link_info *info; | |
725 | { | |
726 | struct elf32_sparc_link_hash_table *htab; | |
727 | ||
728 | if (! _bfd_elf_create_got_section (dynobj, info)) | |
729 | return FALSE; | |
730 | ||
731 | htab = elf32_sparc_hash_table (info); | |
732 | htab->sgot = bfd_get_section_by_name (dynobj, ".got"); | |
733 | if (!htab->sgot) | |
734 | abort (); | |
735 | ||
736 | htab->srelgot = bfd_make_section (dynobj, ".rela.got"); | |
737 | if (htab->srelgot == NULL | |
738 | || ! bfd_set_section_flags (dynobj, htab->srelgot, | |
739 | (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | |
740 | | SEC_IN_MEMORY | SEC_LINKER_CREATED | |
741 | | SEC_READONLY)) | |
742 | || ! bfd_set_section_alignment (dynobj, htab->srelgot, 2)) | |
743 | return FALSE; | |
744 | return TRUE; | |
745 | } | |
746 | ||
747 | /* Create .plt, .rela.plt, .got, .rela.got, .dynbss, and | |
748 | .rela.bss sections in DYNOBJ, and set up shortcuts to them in our | |
749 | hash table. */ | |
750 | ||
751 | static bfd_boolean | |
752 | elf32_sparc_create_dynamic_sections (dynobj, info) | |
753 | bfd *dynobj; | |
754 | struct bfd_link_info *info; | |
755 | { | |
756 | struct elf32_sparc_link_hash_table *htab; | |
757 | ||
758 | htab = elf32_sparc_hash_table (info); | |
759 | if (!htab->sgot && !create_got_section (dynobj, info)) | |
760 | return FALSE; | |
761 | ||
762 | if (!_bfd_elf_create_dynamic_sections (dynobj, info)) | |
763 | return FALSE; | |
764 | ||
765 | htab->splt = bfd_get_section_by_name (dynobj, ".plt"); | |
766 | htab->srelplt = bfd_get_section_by_name (dynobj, ".rela.plt"); | |
767 | htab->sdynbss = bfd_get_section_by_name (dynobj, ".dynbss"); | |
768 | if (!info->shared) | |
769 | htab->srelbss = bfd_get_section_by_name (dynobj, ".rela.bss"); | |
770 | ||
771 | if (!htab->splt || !htab->srelplt || !htab->sdynbss | |
772 | || (!info->shared && !htab->srelbss)) | |
773 | abort (); | |
774 | ||
775 | return TRUE; | |
776 | } | |
777 | ||
778 | /* Copy the extra info we tack onto an elf_link_hash_entry. */ | |
779 | ||
780 | static void | |
781 | elf32_sparc_copy_indirect_symbol (bed, dir, ind) | |
9c5bfbb7 | 782 | const struct elf_backend_data *bed; |
b9734f35 JJ |
783 | struct elf_link_hash_entry *dir, *ind; |
784 | { | |
785 | struct elf32_sparc_link_hash_entry *edir, *eind; | |
786 | ||
787 | edir = (struct elf32_sparc_link_hash_entry *) dir; | |
788 | eind = (struct elf32_sparc_link_hash_entry *) ind; | |
789 | ||
790 | if (eind->dyn_relocs != NULL) | |
791 | { | |
792 | if (edir->dyn_relocs != NULL) | |
26e41594 AM |
793 | { |
794 | struct elf32_sparc_dyn_relocs **pp; | |
795 | struct elf32_sparc_dyn_relocs *p; | |
796 | ||
797 | if (ind->root.type == bfd_link_hash_indirect) | |
798 | abort (); | |
799 | ||
800 | /* Add reloc counts against the weak sym to the strong sym | |
801 | list. Merge any entries against the same section. */ | |
802 | for (pp = &eind->dyn_relocs; (p = *pp) != NULL; ) | |
803 | { | |
804 | struct elf32_sparc_dyn_relocs *q; | |
805 | ||
806 | for (q = edir->dyn_relocs; q != NULL; q = q->next) | |
807 | if (q->sec == p->sec) | |
808 | { | |
809 | q->pc_count += p->pc_count; | |
810 | q->count += p->count; | |
811 | *pp = p->next; | |
812 | break; | |
813 | } | |
814 | if (q == NULL) | |
815 | pp = &p->next; | |
816 | } | |
817 | *pp = edir->dyn_relocs; | |
818 | } | |
b9734f35 JJ |
819 | |
820 | edir->dyn_relocs = eind->dyn_relocs; | |
821 | eind->dyn_relocs = NULL; | |
822 | } | |
823 | ||
824 | if (ind->root.type == bfd_link_hash_indirect | |
825 | && dir->got.refcount <= 0) | |
826 | { | |
827 | edir->tls_type = eind->tls_type; | |
828 | eind->tls_type = GOT_UNKNOWN; | |
829 | } | |
830 | _bfd_elf_link_hash_copy_indirect (bed, dir, ind); | |
831 | } | |
832 | ||
833 | static int | |
834 | elf32_sparc_tls_transition (info, abfd, r_type, is_local) | |
835 | struct bfd_link_info *info; | |
836 | bfd *abfd; | |
837 | int r_type; | |
838 | int is_local; | |
839 | { | |
840 | if (r_type == R_SPARC_TLS_GD_HI22 | |
841 | && ! elf32_sparc_tdata (abfd)->has_tlsgd) | |
842 | r_type = R_SPARC_REV32; | |
843 | ||
844 | if (info->shared) | |
845 | return r_type; | |
846 | ||
847 | switch (r_type) | |
848 | { | |
849 | case R_SPARC_TLS_GD_HI22: | |
850 | if (is_local) | |
851 | return R_SPARC_TLS_LE_HIX22; | |
852 | return R_SPARC_TLS_IE_HI22; | |
853 | case R_SPARC_TLS_GD_LO10: | |
854 | if (is_local) | |
26e41594 | 855 | return R_SPARC_TLS_LE_LOX10; |
b9734f35 JJ |
856 | return R_SPARC_TLS_IE_LO10; |
857 | case R_SPARC_TLS_IE_HI22: | |
858 | if (is_local) | |
26e41594 | 859 | return R_SPARC_TLS_LE_HIX22; |
b9734f35 JJ |
860 | return r_type; |
861 | case R_SPARC_TLS_IE_LO10: | |
862 | if (is_local) | |
26e41594 | 863 | return R_SPARC_TLS_LE_LOX10; |
b9734f35 JJ |
864 | return r_type; |
865 | case R_SPARC_TLS_LDM_HI22: | |
866 | return R_SPARC_TLS_LE_HIX22; | |
867 | case R_SPARC_TLS_LDM_LO10: | |
868 | return R_SPARC_TLS_LE_LOX10; | |
869 | } | |
870 | ||
871 | return r_type; | |
872 | } | |
873 | ||
252b5132 RH |
874 | /* Look through the relocs for a section during the first phase, and |
875 | allocate space in the global offset table or procedure linkage | |
876 | table. */ | |
877 | ||
b34976b6 | 878 | static bfd_boolean |
252b5132 RH |
879 | elf32_sparc_check_relocs (abfd, info, sec, relocs) |
880 | bfd *abfd; | |
881 | struct bfd_link_info *info; | |
882 | asection *sec; | |
883 | const Elf_Internal_Rela *relocs; | |
884 | { | |
b9734f35 | 885 | struct elf32_sparc_link_hash_table *htab; |
252b5132 RH |
886 | Elf_Internal_Shdr *symtab_hdr; |
887 | struct elf_link_hash_entry **sym_hashes; | |
888 | bfd_vma *local_got_offsets; | |
889 | const Elf_Internal_Rela *rel; | |
890 | const Elf_Internal_Rela *rel_end; | |
252b5132 | 891 | asection *sreloc; |
b9734f35 | 892 | bfd_boolean checked_tlsgd = FALSE; |
252b5132 | 893 | |
1049f94e | 894 | if (info->relocatable) |
b34976b6 | 895 | return TRUE; |
252b5132 | 896 | |
b9734f35 | 897 | htab = elf32_sparc_hash_table (info); |
252b5132 RH |
898 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; |
899 | sym_hashes = elf_sym_hashes (abfd); | |
900 | local_got_offsets = elf_local_got_offsets (abfd); | |
901 | ||
252b5132 RH |
902 | sreloc = NULL; |
903 | ||
904 | rel_end = relocs + sec->reloc_count; | |
905 | for (rel = relocs; rel < rel_end; rel++) | |
906 | { | |
b9734f35 | 907 | unsigned int r_type; |
252b5132 RH |
908 | unsigned long r_symndx; |
909 | struct elf_link_hash_entry *h; | |
910 | ||
911 | r_symndx = ELF32_R_SYM (rel->r_info); | |
b9734f35 JJ |
912 | r_type = ELF32_R_TYPE (rel->r_info); |
913 | ||
914 | if (r_symndx >= NUM_SHDR_ENTRIES (symtab_hdr)) | |
26e41594 AM |
915 | { |
916 | (*_bfd_error_handler) (_("%s: bad symbol index: %d"), | |
917 | bfd_archive_filename (abfd), | |
918 | r_symndx); | |
919 | return FALSE; | |
920 | } | |
b9734f35 | 921 | |
252b5132 RH |
922 | if (r_symndx < symtab_hdr->sh_info) |
923 | h = NULL; | |
924 | else | |
925 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
926 | ||
b9734f35 JJ |
927 | /* Compatibility with old R_SPARC_REV32 reloc conflicting |
928 | with R_SPARC_TLS_GD_HI22. */ | |
929 | if (! checked_tlsgd) | |
930 | switch (r_type) | |
931 | { | |
932 | case R_SPARC_TLS_GD_HI22: | |
933 | { | |
934 | const Elf_Internal_Rela *relt; | |
935 | ||
936 | for (relt = rel + 1; relt < rel_end; relt++) | |
937 | if (ELF32_R_TYPE (relt->r_info) == R_SPARC_TLS_GD_LO10 | |
938 | || ELF32_R_TYPE (relt->r_info) == R_SPARC_TLS_GD_ADD | |
939 | || ELF32_R_TYPE (relt->r_info) == R_SPARC_TLS_GD_CALL) | |
940 | break; | |
941 | checked_tlsgd = TRUE; | |
942 | elf32_sparc_tdata (abfd)->has_tlsgd = relt < rel_end; | |
943 | } | |
944 | break; | |
945 | case R_SPARC_TLS_GD_LO10: | |
946 | case R_SPARC_TLS_GD_ADD: | |
947 | case R_SPARC_TLS_GD_CALL: | |
948 | checked_tlsgd = TRUE; | |
949 | elf32_sparc_tdata (abfd)->has_tlsgd = TRUE; | |
950 | break; | |
951 | } | |
952 | ||
953 | r_type = elf32_sparc_tls_transition (info, abfd, r_type, h == NULL); | |
954 | switch (r_type) | |
252b5132 | 955 | { |
b9734f35 JJ |
956 | case R_SPARC_TLS_LDM_HI22: |
957 | case R_SPARC_TLS_LDM_LO10: | |
958 | htab->tls_ldm_got.refcount += 1; | |
959 | break; | |
960 | ||
961 | case R_SPARC_TLS_LE_HIX22: | |
962 | case R_SPARC_TLS_LE_LOX10: | |
963 | if (info->shared) | |
964 | goto r_sparc_plt32; | |
965 | break; | |
966 | ||
967 | case R_SPARC_TLS_IE_HI22: | |
968 | case R_SPARC_TLS_IE_LO10: | |
969 | if (info->shared) | |
970 | info->flags |= DF_STATIC_TLS; | |
971 | /* Fall through */ | |
972 | ||
252b5132 RH |
973 | case R_SPARC_GOT10: |
974 | case R_SPARC_GOT13: | |
975 | case R_SPARC_GOT22: | |
b9734f35 JJ |
976 | case R_SPARC_TLS_GD_HI22: |
977 | case R_SPARC_TLS_GD_LO10: | |
252b5132 | 978 | /* This symbol requires a global offset table entry. */ |
b9734f35 JJ |
979 | { |
980 | int tls_type, old_tls_type; | |
252b5132 | 981 | |
b9734f35 JJ |
982 | switch (r_type) |
983 | { | |
984 | default: | |
985 | case R_SPARC_GOT10: | |
986 | case R_SPARC_GOT13: | |
987 | case R_SPARC_GOT22: | |
988 | tls_type = GOT_NORMAL; | |
989 | break; | |
990 | case R_SPARC_TLS_GD_HI22: | |
991 | case R_SPARC_TLS_GD_LO10: | |
992 | tls_type = GOT_TLS_GD; | |
993 | break; | |
994 | case R_SPARC_TLS_IE_HI22: | |
995 | case R_SPARC_TLS_IE_LO10: | |
996 | tls_type = GOT_TLS_IE; | |
997 | break; | |
998 | } | |
252b5132 | 999 | |
b9734f35 JJ |
1000 | if (h != NULL) |
1001 | { | |
1002 | h->got.refcount += 1; | |
1003 | old_tls_type = elf32_sparc_hash_entry(h)->tls_type; | |
1004 | } | |
1005 | else | |
1006 | { | |
1007 | bfd_signed_vma *local_got_refcounts; | |
252b5132 | 1008 | |
b9734f35 JJ |
1009 | /* This is a global offset table entry for a local symbol. */ |
1010 | local_got_refcounts = elf_local_got_refcounts (abfd); | |
1011 | if (local_got_refcounts == NULL) | |
1012 | { | |
1013 | bfd_size_type size; | |
252b5132 | 1014 | |
b9734f35 JJ |
1015 | size = symtab_hdr->sh_info; |
1016 | size *= (sizeof (bfd_signed_vma) + sizeof(char)); | |
1017 | local_got_refcounts = ((bfd_signed_vma *) | |
1018 | bfd_zalloc (abfd, size)); | |
1019 | if (local_got_refcounts == NULL) | |
1020 | return FALSE; | |
1021 | elf_local_got_refcounts (abfd) = local_got_refcounts; | |
1022 | elf32_sparc_local_got_tls_type (abfd) | |
1023 | = (char *) (local_got_refcounts + symtab_hdr->sh_info); | |
1024 | } | |
1025 | local_got_refcounts[r_symndx] += 1; | |
1026 | old_tls_type = elf32_sparc_local_got_tls_type (abfd) [r_symndx]; | |
1027 | } | |
252b5132 | 1028 | |
b9734f35 JJ |
1029 | /* If a TLS symbol is accessed using IE at least once, |
1030 | there is no point to use dynamic model for it. */ | |
1031 | if (old_tls_type != tls_type && old_tls_type != GOT_UNKNOWN | |
1032 | && (old_tls_type != GOT_TLS_GD | |
1033 | || tls_type != GOT_TLS_IE)) | |
1034 | { | |
1035 | if (old_tls_type == GOT_TLS_IE && tls_type == GOT_TLS_GD) | |
1036 | tls_type = old_tls_type; | |
1037 | else | |
1038 | { | |
1039 | (*_bfd_error_handler) | |
1040 | (_("%s: `%s' accessed both as normal and thread local symbol"), | |
1041 | bfd_archive_filename (abfd), | |
1042 | h ? h->root.root.string : "<local>"); | |
b34976b6 | 1043 | return FALSE; |
b9734f35 JJ |
1044 | } |
1045 | } | |
252b5132 | 1046 | |
b9734f35 JJ |
1047 | if (old_tls_type != tls_type) |
1048 | { | |
1049 | if (h != NULL) | |
1050 | elf32_sparc_hash_entry (h)->tls_type = tls_type; | |
1051 | else | |
1052 | elf32_sparc_local_got_tls_type (abfd) [r_symndx] = tls_type; | |
1053 | } | |
1054 | } | |
252b5132 | 1055 | |
2293c499 AM |
1056 | if (htab->sgot == NULL) |
1057 | { | |
1058 | if (htab->elf.dynobj == NULL) | |
1059 | htab->elf.dynobj = abfd; | |
1060 | if (!create_got_section (htab->elf.dynobj, info)) | |
1061 | return FALSE; | |
1062 | } | |
b9734f35 | 1063 | break; |
252b5132 | 1064 | |
b9734f35 JJ |
1065 | case R_SPARC_TLS_GD_CALL: |
1066 | case R_SPARC_TLS_LDM_CALL: | |
1067 | if (info->shared) | |
1068 | { | |
1069 | /* These are basically R_SPARC_TLS_WPLT30 relocs against | |
1070 | __tls_get_addr. */ | |
1071 | struct bfd_link_hash_entry *bh = NULL; | |
1072 | if (! _bfd_generic_link_add_one_symbol (info, abfd, | |
1073 | "__tls_get_addr", 0, | |
1074 | bfd_und_section_ptr, 0, | |
1075 | NULL, FALSE, FALSE, | |
1076 | &bh)) | |
1077 | return FALSE; | |
1078 | h = (struct elf_link_hash_entry *) bh; | |
252b5132 | 1079 | } |
b9734f35 JJ |
1080 | else |
1081 | break; | |
1082 | /* Fall through */ | |
252b5132 | 1083 | |
bd5e6e7e | 1084 | case R_SPARC_PLT32: |
252b5132 RH |
1085 | case R_SPARC_WPLT30: |
1086 | /* This symbol requires a procedure linkage table entry. We | |
26e41594 AM |
1087 | actually build the entry in adjust_dynamic_symbol, |
1088 | because this might be a case of linking PIC code without | |
1089 | linking in any dynamic objects, in which case we don't | |
1090 | need to generate a procedure linkage table after all. */ | |
252b5132 RH |
1091 | |
1092 | if (h == NULL) | |
1093 | { | |
1094 | /* The Solaris native assembler will generate a WPLT30 | |
26e41594 AM |
1095 | reloc for a local symbol if you assemble a call from |
1096 | one section to another when using -K pic. We treat | |
1097 | it as WDISP30. */ | |
b9734f35 | 1098 | if (ELF32_R_TYPE (rel->r_info) == R_SPARC_PLT32) |
bd5e6e7e | 1099 | goto r_sparc_plt32; |
252b5132 RH |
1100 | break; |
1101 | } | |
1102 | ||
252b5132 RH |
1103 | h->elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_PLT; |
1104 | ||
b9734f35 | 1105 | if (ELF32_R_TYPE (rel->r_info) == R_SPARC_PLT32) |
bd5e6e7e | 1106 | goto r_sparc_plt32; |
b9734f35 | 1107 | h->plt.refcount += 1; |
252b5132 RH |
1108 | break; |
1109 | ||
1110 | case R_SPARC_PC10: | |
1111 | case R_SPARC_PC22: | |
7843f00e ILT |
1112 | if (h != NULL) |
1113 | h->elf_link_hash_flags |= ELF_LINK_NON_GOT_REF; | |
1114 | ||
252b5132 RH |
1115 | if (h != NULL |
1116 | && strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0) | |
1117 | break; | |
1118 | /* Fall through. */ | |
b9734f35 | 1119 | |
252b5132 RH |
1120 | case R_SPARC_DISP8: |
1121 | case R_SPARC_DISP16: | |
1122 | case R_SPARC_DISP32: | |
1123 | case R_SPARC_WDISP30: | |
1124 | case R_SPARC_WDISP22: | |
1125 | case R_SPARC_WDISP19: | |
1126 | case R_SPARC_WDISP16: | |
252b5132 RH |
1127 | case R_SPARC_8: |
1128 | case R_SPARC_16: | |
1129 | case R_SPARC_32: | |
1130 | case R_SPARC_HI22: | |
1131 | case R_SPARC_22: | |
1132 | case R_SPARC_13: | |
1133 | case R_SPARC_LO10: | |
0f2712ed | 1134 | case R_SPARC_UA16: |
252b5132 | 1135 | case R_SPARC_UA32: |
7843f00e ILT |
1136 | if (h != NULL) |
1137 | h->elf_link_hash_flags |= ELF_LINK_NON_GOT_REF; | |
1138 | ||
bd5e6e7e | 1139 | r_sparc_plt32: |
b9734f35 JJ |
1140 | if (h != NULL && !info->shared) |
1141 | { | |
1142 | /* We may need a .plt entry if the function this reloc | |
1143 | refers to is in a shared lib. */ | |
1144 | h->plt.refcount += 1; | |
1145 | } | |
1146 | ||
1147 | /* If we are creating a shared library, and this is a reloc | |
1148 | against a global symbol, or a non PC relative reloc | |
1149 | against a local symbol, then we need to copy the reloc | |
1150 | into the shared library. However, if we are linking with | |
1151 | -Bsymbolic, we do not need to copy a reloc against a | |
1152 | global symbol which is defined in an object we are | |
1153 | including in the link (i.e., DEF_REGULAR is set). At | |
1154 | this point we have not seen all the input files, so it is | |
1155 | possible that DEF_REGULAR is not set now but will be set | |
1156 | later (it is never cleared). In case of a weak definition, | |
1157 | DEF_REGULAR may be cleared later by a strong definition in | |
1158 | a shared library. We account for that possibility below by | |
1159 | storing information in the relocs_copied field of the hash | |
1160 | table entry. A similar situation occurs when creating | |
1161 | shared libraries and symbol visibility changes render the | |
1162 | symbol local. | |
1163 | ||
1164 | If on the other hand, we are creating an executable, we | |
1165 | may need to keep relocations for symbols satisfied by a | |
1166 | dynamic library if we manage to avoid copy relocs for the | |
1167 | symbol. */ | |
1168 | if ((info->shared | |
1169 | && (sec->flags & SEC_ALLOC) != 0 | |
1170 | && (! _bfd_sparc_elf_howto_table[r_type].pc_relative | |
1171 | || (h != NULL | |
1172 | && (! info->symbolic | |
1173 | || h->root.type == bfd_link_hash_defweak | |
1174 | || (h->elf_link_hash_flags | |
1175 | & ELF_LINK_HASH_DEF_REGULAR) == 0)))) | |
1176 | || (!info->shared | |
1177 | && (sec->flags & SEC_ALLOC) != 0 | |
1178 | && h != NULL | |
1179 | && (h->root.type == bfd_link_hash_defweak | |
1180 | || (h->elf_link_hash_flags | |
1181 | & ELF_LINK_HASH_DEF_REGULAR) == 0))) | |
252b5132 | 1182 | { |
b9734f35 JJ |
1183 | struct elf32_sparc_dyn_relocs *p; |
1184 | struct elf32_sparc_dyn_relocs **head; | |
1185 | ||
252b5132 | 1186 | /* When creating a shared object, we must copy these |
26e41594 AM |
1187 | relocs into the output file. We create a reloc |
1188 | section in dynobj and make room for the reloc. */ | |
252b5132 RH |
1189 | if (sreloc == NULL) |
1190 | { | |
1191 | const char *name; | |
b9734f35 | 1192 | bfd *dynobj; |
252b5132 RH |
1193 | |
1194 | name = (bfd_elf_string_from_elf_section | |
1195 | (abfd, | |
1196 | elf_elfheader (abfd)->e_shstrndx, | |
1197 | elf_section_data (sec)->rel_hdr.sh_name)); | |
1198 | if (name == NULL) | |
b34976b6 | 1199 | return FALSE; |
252b5132 RH |
1200 | |
1201 | BFD_ASSERT (strncmp (name, ".rela", 5) == 0 | |
1202 | && strcmp (bfd_get_section_name (abfd, sec), | |
1203 | name + 5) == 0); | |
1204 | ||
b9734f35 JJ |
1205 | if (htab->elf.dynobj == NULL) |
1206 | htab->elf.dynobj = abfd; | |
1207 | dynobj = htab->elf.dynobj; | |
1208 | ||
252b5132 RH |
1209 | sreloc = bfd_get_section_by_name (dynobj, name); |
1210 | if (sreloc == NULL) | |
1211 | { | |
1212 | flagword flags; | |
1213 | ||
1214 | sreloc = bfd_make_section (dynobj, name); | |
1215 | flags = (SEC_HAS_CONTENTS | SEC_READONLY | |
1216 | | SEC_IN_MEMORY | SEC_LINKER_CREATED); | |
1217 | if ((sec->flags & SEC_ALLOC) != 0) | |
1218 | flags |= SEC_ALLOC | SEC_LOAD; | |
1219 | if (sreloc == NULL | |
1220 | || ! bfd_set_section_flags (dynobj, sreloc, flags) | |
1221 | || ! bfd_set_section_alignment (dynobj, sreloc, 2)) | |
b34976b6 | 1222 | return FALSE; |
252b5132 | 1223 | } |
b9734f35 | 1224 | elf_section_data (sec)->sreloc = sreloc; |
252b5132 RH |
1225 | } |
1226 | ||
b9734f35 JJ |
1227 | /* If this is a global symbol, we count the number of |
1228 | relocations we need for this symbol. */ | |
1229 | if (h != NULL) | |
1230 | head = &((struct elf32_sparc_link_hash_entry *) h)->dyn_relocs; | |
1231 | else | |
1232 | { | |
1233 | /* Track dynamic relocs needed for local syms too. | |
1234 | We really need local syms available to do this | |
1235 | easily. Oh well. */ | |
1236 | ||
1237 | asection *s; | |
1238 | s = bfd_section_from_r_symndx (abfd, &htab->sym_sec, | |
1239 | sec, r_symndx); | |
1240 | if (s == NULL) | |
1241 | return FALSE; | |
1242 | ||
1243 | head = ((struct elf32_sparc_dyn_relocs **) | |
1244 | &elf_section_data (s)->local_dynrel); | |
1245 | } | |
1246 | ||
1247 | p = *head; | |
1248 | if (p == NULL || p->sec != sec) | |
1249 | { | |
1250 | bfd_size_type amt = sizeof *p; | |
1251 | p = ((struct elf32_sparc_dyn_relocs *) | |
1252 | bfd_alloc (htab->elf.dynobj, amt)); | |
1253 | if (p == NULL) | |
1254 | return FALSE; | |
1255 | p->next = *head; | |
1256 | *head = p; | |
1257 | p->sec = sec; | |
1258 | p->count = 0; | |
1259 | p->pc_count = 0; | |
1260 | } | |
1261 | ||
1262 | p->count += 1; | |
1263 | if (_bfd_sparc_elf_howto_table[r_type].pc_relative) | |
1264 | p->pc_count += 1; | |
252b5132 RH |
1265 | } |
1266 | ||
1267 | break; | |
1268 | ||
26e41594 | 1269 | case R_SPARC_GNU_VTINHERIT: |
c152c796 | 1270 | if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset)) |
26e41594 AM |
1271 | return FALSE; |
1272 | break; | |
252b5132 | 1273 | |
26e41594 | 1274 | case R_SPARC_GNU_VTENTRY: |
c152c796 | 1275 | if (!bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend)) |
26e41594 AM |
1276 | return FALSE; |
1277 | break; | |
252b5132 RH |
1278 | |
1279 | default: | |
1280 | break; | |
1281 | } | |
1282 | } | |
1283 | ||
b34976b6 | 1284 | return TRUE; |
252b5132 RH |
1285 | } |
1286 | ||
1287 | static asection * | |
1e2f5b6e AM |
1288 | elf32_sparc_gc_mark_hook (sec, info, rel, h, sym) |
1289 | asection *sec; | |
5f771d47 | 1290 | struct bfd_link_info *info ATTRIBUTE_UNUSED; |
252b5132 RH |
1291 | Elf_Internal_Rela *rel; |
1292 | struct elf_link_hash_entry *h; | |
1293 | Elf_Internal_Sym *sym; | |
1294 | { | |
252b5132 RH |
1295 | if (h != NULL) |
1296 | { | |
1297 | switch (ELF32_R_TYPE (rel->r_info)) | |
1298 | { | |
1299 | case R_SPARC_GNU_VTINHERIT: | |
1300 | case R_SPARC_GNU_VTENTRY: | |
26e41594 | 1301 | break; |
252b5132 RH |
1302 | |
1303 | default: | |
26e41594 AM |
1304 | switch (h->root.type) |
1305 | { | |
1306 | case bfd_link_hash_defined: | |
1307 | case bfd_link_hash_defweak: | |
1308 | return h->root.u.def.section; | |
252b5132 | 1309 | |
26e41594 AM |
1310 | case bfd_link_hash_common: |
1311 | return h->root.u.c.p->section; | |
e049a0de ILT |
1312 | |
1313 | default: | |
1314 | break; | |
26e41594 | 1315 | } |
252b5132 RH |
1316 | } |
1317 | } | |
1318 | else | |
1e2f5b6e | 1319 | return bfd_section_from_elf_index (sec->owner, sym->st_shndx); |
252b5132 RH |
1320 | |
1321 | return NULL; | |
1322 | } | |
1323 | ||
1324 | /* Update the got entry reference counts for the section being removed. */ | |
b34976b6 | 1325 | static bfd_boolean |
252b5132 RH |
1326 | elf32_sparc_gc_sweep_hook (abfd, info, sec, relocs) |
1327 | bfd *abfd; | |
5f771d47 | 1328 | struct bfd_link_info *info ATTRIBUTE_UNUSED; |
252b5132 RH |
1329 | asection *sec; |
1330 | const Elf_Internal_Rela *relocs; | |
1331 | { | |
252b5132 RH |
1332 | Elf_Internal_Shdr *symtab_hdr; |
1333 | struct elf_link_hash_entry **sym_hashes; | |
1334 | bfd_signed_vma *local_got_refcounts; | |
1335 | const Elf_Internal_Rela *rel, *relend; | |
26e41594 AM |
1336 | |
1337 | elf_section_data (sec)->local_dynrel = NULL; | |
252b5132 RH |
1338 | |
1339 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; | |
1340 | sym_hashes = elf_sym_hashes (abfd); | |
1341 | local_got_refcounts = elf_local_got_refcounts (abfd); | |
1342 | ||
1343 | relend = relocs + sec->reloc_count; | |
1344 | for (rel = relocs; rel < relend; rel++) | |
26e41594 AM |
1345 | { |
1346 | unsigned long r_symndx; | |
1347 | unsigned int r_type; | |
1348 | struct elf_link_hash_entry *h = NULL; | |
b9734f35 | 1349 | |
26e41594 AM |
1350 | r_symndx = ELF32_R_SYM (rel->r_info); |
1351 | if (r_symndx >= symtab_hdr->sh_info) | |
1352 | { | |
1353 | struct elf32_sparc_link_hash_entry *eh; | |
1354 | struct elf32_sparc_dyn_relocs **pp; | |
1355 | struct elf32_sparc_dyn_relocs *p; | |
b9734f35 | 1356 | |
26e41594 AM |
1357 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; |
1358 | eh = (struct elf32_sparc_link_hash_entry *) h; | |
1359 | for (pp = &eh->dyn_relocs; (p = *pp) != NULL; pp = &p->next) | |
1360 | if (p->sec == sec) | |
1361 | { | |
1362 | /* Everything must go for SEC. */ | |
1363 | *pp = p->next; | |
1364 | break; | |
1365 | } | |
1366 | } | |
b9734f35 | 1367 | |
26e41594 AM |
1368 | r_type = ELF32_R_TYPE (rel->r_info); |
1369 | r_type = elf32_sparc_tls_transition (info, abfd, r_type, h != NULL); | |
1370 | switch (r_type) | |
1371 | { | |
1372 | case R_SPARC_TLS_LDM_HI22: | |
1373 | case R_SPARC_TLS_LDM_LO10: | |
1374 | if (elf32_sparc_hash_table (info)->tls_ldm_got.refcount > 0) | |
1375 | elf32_sparc_hash_table (info)->tls_ldm_got.refcount -= 1; | |
1376 | break; | |
b9734f35 | 1377 | |
26e41594 AM |
1378 | case R_SPARC_TLS_GD_HI22: |
1379 | case R_SPARC_TLS_GD_LO10: | |
1380 | case R_SPARC_TLS_IE_HI22: | |
1381 | case R_SPARC_TLS_IE_LO10: | |
1382 | case R_SPARC_GOT10: | |
1383 | case R_SPARC_GOT13: | |
1384 | case R_SPARC_GOT22: | |
1385 | if (h != NULL) | |
1386 | { | |
1387 | if (h->got.refcount > 0) | |
1388 | h->got.refcount--; | |
1389 | } | |
1390 | else | |
1391 | { | |
1392 | if (local_got_refcounts[r_symndx] > 0) | |
1393 | local_got_refcounts[r_symndx]--; | |
1394 | } | |
1395 | break; | |
b9734f35 | 1396 | |
26e41594 AM |
1397 | case R_SPARC_PC10: |
1398 | case R_SPARC_PC22: | |
1399 | if (h != NULL | |
1400 | && strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0) | |
1401 | break; | |
1402 | /* Fall through. */ | |
b9734f35 | 1403 | |
26e41594 AM |
1404 | case R_SPARC_DISP8: |
1405 | case R_SPARC_DISP16: | |
1406 | case R_SPARC_DISP32: | |
1407 | case R_SPARC_WDISP30: | |
1408 | case R_SPARC_WDISP22: | |
1409 | case R_SPARC_WDISP19: | |
1410 | case R_SPARC_WDISP16: | |
1411 | case R_SPARC_8: | |
1412 | case R_SPARC_16: | |
1413 | case R_SPARC_32: | |
1414 | case R_SPARC_HI22: | |
1415 | case R_SPARC_22: | |
1416 | case R_SPARC_13: | |
1417 | case R_SPARC_LO10: | |
1418 | case R_SPARC_UA16: | |
1419 | case R_SPARC_UA32: | |
1420 | case R_SPARC_PLT32: | |
1421 | if (info->shared) | |
1422 | break; | |
1423 | /* Fall through. */ | |
b9734f35 | 1424 | |
26e41594 AM |
1425 | case R_SPARC_WPLT30: |
1426 | if (h != NULL) | |
1427 | { | |
1428 | if (h->plt.refcount > 0) | |
1429 | h->plt.refcount--; | |
1430 | } | |
1431 | break; | |
252b5132 | 1432 | |
26e41594 AM |
1433 | default: |
1434 | break; | |
1435 | } | |
1436 | } | |
252b5132 | 1437 | |
b34976b6 | 1438 | return TRUE; |
252b5132 RH |
1439 | } |
1440 | ||
1441 | /* Adjust a symbol defined by a dynamic object and referenced by a | |
1442 | regular object. The current definition is in some section of the | |
1443 | dynamic object, but we're not including those sections. We have to | |
1444 | change the definition to something the rest of the link can | |
1445 | understand. */ | |
1446 | ||
b34976b6 | 1447 | static bfd_boolean |
252b5132 RH |
1448 | elf32_sparc_adjust_dynamic_symbol (info, h) |
1449 | struct bfd_link_info *info; | |
1450 | struct elf_link_hash_entry *h; | |
1451 | { | |
b9734f35 JJ |
1452 | struct elf32_sparc_link_hash_table *htab; |
1453 | struct elf32_sparc_link_hash_entry * eh; | |
1454 | struct elf32_sparc_dyn_relocs *p; | |
252b5132 RH |
1455 | asection *s; |
1456 | unsigned int power_of_two; | |
1457 | ||
b9734f35 | 1458 | htab = elf32_sparc_hash_table (info); |
252b5132 RH |
1459 | |
1460 | /* Make sure we know what is going on here. */ | |
b9734f35 | 1461 | BFD_ASSERT (htab->elf.dynobj != NULL |
252b5132 RH |
1462 | && ((h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_PLT) |
1463 | || h->weakdef != NULL | |
1464 | || ((h->elf_link_hash_flags | |
1465 | & ELF_LINK_HASH_DEF_DYNAMIC) != 0 | |
1466 | && (h->elf_link_hash_flags | |
1467 | & ELF_LINK_HASH_REF_REGULAR) != 0 | |
1468 | && (h->elf_link_hash_flags | |
1469 | & ELF_LINK_HASH_DEF_REGULAR) == 0))); | |
1470 | ||
1471 | /* If this is a function, put it in the procedure linkage table. We | |
1472 | will fill in the contents of the procedure linkage table later | |
1473 | (although we could actually do it here). The STT_NOTYPE | |
1474 | condition is a hack specifically for the Oracle libraries | |
1475 | delivered for Solaris; for some inexplicable reason, they define | |
1476 | some of their functions as STT_NOTYPE when they really should be | |
1477 | STT_FUNC. */ | |
1478 | if (h->type == STT_FUNC | |
1479 | || (h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_PLT) != 0 | |
1480 | || (h->type == STT_NOTYPE | |
1481 | && (h->root.type == bfd_link_hash_defined | |
1482 | || h->root.type == bfd_link_hash_defweak) | |
1483 | && (h->root.u.def.section->flags & SEC_CODE) != 0)) | |
1484 | { | |
b9734f35 JJ |
1485 | if (h->plt.refcount <= 0 |
1486 | || (! info->shared | |
1487 | && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC) == 0 | |
1488 | && (h->elf_link_hash_flags & ELF_LINK_HASH_REF_DYNAMIC) == 0 | |
1489 | && h->root.type != bfd_link_hash_undefweak | |
1490 | && h->root.type != bfd_link_hash_undefined)) | |
252b5132 RH |
1491 | { |
1492 | /* This case can occur if we saw a WPLT30 reloc in an input | |
b9734f35 JJ |
1493 | file, but the symbol was never referred to by a dynamic |
1494 | object, or if all references were garbage collected. In | |
1495 | such a case, we don't actually need to build a procedure | |
1496 | linkage table, and we can just do a WDISP30 reloc instead. */ | |
1497 | h->plt.offset = (bfd_vma) -1; | |
252b5132 | 1498 | h->elf_link_hash_flags &= ~ELF_LINK_HASH_NEEDS_PLT; |
252b5132 RH |
1499 | } |
1500 | ||
b34976b6 | 1501 | return TRUE; |
252b5132 | 1502 | } |
b9734f35 JJ |
1503 | else |
1504 | h->plt.offset = (bfd_vma) -1; | |
252b5132 RH |
1505 | |
1506 | /* If this is a weak symbol, and there is a real definition, the | |
1507 | processor independent code will have arranged for us to see the | |
1508 | real definition first, and we can just use the same value. */ | |
1509 | if (h->weakdef != NULL) | |
1510 | { | |
1511 | BFD_ASSERT (h->weakdef->root.type == bfd_link_hash_defined | |
1512 | || h->weakdef->root.type == bfd_link_hash_defweak); | |
1513 | h->root.u.def.section = h->weakdef->root.u.def.section; | |
1514 | h->root.u.def.value = h->weakdef->root.u.def.value; | |
b34976b6 | 1515 | return TRUE; |
252b5132 RH |
1516 | } |
1517 | ||
1518 | /* This is a reference to a symbol defined by a dynamic object which | |
1519 | is not a function. */ | |
1520 | ||
1521 | /* If we are creating a shared library, we must presume that the | |
1522 | only references to the symbol are via the global offset table. | |
1523 | For such cases we need not do anything here; the relocations will | |
1524 | be handled correctly by relocate_section. */ | |
1525 | if (info->shared) | |
b34976b6 | 1526 | return TRUE; |
252b5132 | 1527 | |
7843f00e ILT |
1528 | /* If there are no references to this symbol that do not use the |
1529 | GOT, we don't need to generate a copy reloc. */ | |
1530 | if ((h->elf_link_hash_flags & ELF_LINK_NON_GOT_REF) == 0) | |
b34976b6 | 1531 | return TRUE; |
7843f00e | 1532 | |
b9734f35 JJ |
1533 | eh = (struct elf32_sparc_link_hash_entry *) h; |
1534 | for (p = eh->dyn_relocs; p != NULL; p = p->next) | |
1535 | { | |
1536 | s = p->sec->output_section; | |
1537 | if (s != NULL && (s->flags & SEC_READONLY) != 0) | |
1538 | break; | |
1539 | } | |
1540 | ||
1541 | /* If we didn't find any dynamic relocs in read-only sections, then | |
1542 | we'll be keeping the dynamic relocs and avoiding the copy reloc. */ | |
1543 | if (p == NULL) | |
1544 | { | |
1545 | h->elf_link_hash_flags &= ~ELF_LINK_NON_GOT_REF; | |
1546 | return TRUE; | |
1547 | } | |
1548 | ||
252b5132 RH |
1549 | /* We must allocate the symbol in our .dynbss section, which will |
1550 | become part of the .bss section of the executable. There will be | |
1551 | an entry for this symbol in the .dynsym section. The dynamic | |
1552 | object will contain position independent code, so all references | |
1553 | from the dynamic object to this symbol will go through the global | |
1554 | offset table. The dynamic linker will use the .dynsym entry to | |
1555 | determine the address it must put in the global offset table, so | |
1556 | both the dynamic object and the regular object will refer to the | |
1557 | same memory location for the variable. */ | |
1558 | ||
b9734f35 JJ |
1559 | /* We must generate a R_SPARC_COPY reloc to tell the dynamic linker |
1560 | to copy the initial value out of the dynamic object and into the | |
1561 | runtime process image. We need to remember the offset into the | |
1562 | .rel.bss section we are going to use. */ | |
1563 | if ((h->root.u.def.section->flags & SEC_ALLOC) != 0) | |
1564 | { | |
eea6121a | 1565 | htab->srelbss->size += sizeof (Elf32_External_Rela); |
b9734f35 JJ |
1566 | h->elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_COPY; |
1567 | } | |
1568 | ||
1569 | /* We need to figure out the alignment required for this symbol. I | |
1570 | have no idea how ELF linkers handle this. */ | |
1571 | power_of_two = bfd_log2 (h->size); | |
1572 | if (power_of_two > 3) | |
1573 | power_of_two = 3; | |
1574 | ||
1575 | /* Apply the required alignment. */ | |
1576 | s = htab->sdynbss; | |
eea6121a | 1577 | s->size = BFD_ALIGN (s->size, (bfd_size_type) (1 << power_of_two)); |
b9734f35 JJ |
1578 | if (power_of_two > bfd_get_section_alignment (dynobj, s)) |
1579 | { | |
1580 | if (! bfd_set_section_alignment (dynobj, s, power_of_two)) | |
1581 | return FALSE; | |
1582 | } | |
1583 | ||
1584 | /* Define the symbol as being at this point in the section. */ | |
1585 | h->root.u.def.section = s; | |
eea6121a | 1586 | h->root.u.def.value = s->size; |
b9734f35 JJ |
1587 | |
1588 | /* Increment the section size to make room for the symbol. */ | |
eea6121a | 1589 | s->size += h->size; |
b9734f35 JJ |
1590 | |
1591 | return TRUE; | |
1592 | } | |
1593 | ||
b9734f35 JJ |
1594 | /* Allocate space in .plt, .got and associated reloc sections for |
1595 | dynamic relocs. */ | |
1596 | ||
1597 | static bfd_boolean | |
1598 | allocate_dynrelocs (h, inf) | |
1599 | struct elf_link_hash_entry *h; | |
1600 | PTR inf; | |
1601 | { | |
1602 | struct bfd_link_info *info; | |
1603 | struct elf32_sparc_link_hash_table *htab; | |
1604 | struct elf32_sparc_link_hash_entry *eh; | |
1605 | struct elf32_sparc_dyn_relocs *p; | |
1606 | ||
1607 | if (h->root.type == bfd_link_hash_indirect) | |
1608 | return TRUE; | |
1609 | ||
1610 | if (h->root.type == bfd_link_hash_warning) | |
1611 | /* When warning symbols are created, they **replace** the "real" | |
1612 | entry in the hash table, thus we never get to see the real | |
1613 | symbol in a hash traversal. So look at it now. */ | |
1614 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
1615 | ||
1616 | info = (struct bfd_link_info *) inf; | |
1617 | htab = elf32_sparc_hash_table (info); | |
1618 | ||
1619 | if (htab->elf.dynamic_sections_created | |
1620 | && h->plt.refcount > 0) | |
1621 | { | |
1622 | /* Make sure this symbol is output as a dynamic symbol. | |
1623 | Undefined weak syms won't yet be marked as dynamic. */ | |
1624 | if (h->dynindx == -1 | |
1625 | && (h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) == 0) | |
1626 | { | |
c152c796 | 1627 | if (! bfd_elf_link_record_dynamic_symbol (info, h)) |
b9734f35 JJ |
1628 | return FALSE; |
1629 | } | |
1630 | ||
c152c796 | 1631 | if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, info->shared, h)) |
b9734f35 JJ |
1632 | { |
1633 | asection *s = htab->splt; | |
1634 | ||
1635 | /* The first four entries in .plt are reserved. */ | |
eea6121a AM |
1636 | if (s->size == 0) |
1637 | s->size = 4 * PLT_ENTRY_SIZE; | |
26e41594 | 1638 | |
b9734f35 | 1639 | /* The procedure linkage table has a maximum size. */ |
eea6121a | 1640 | if (s->size >= 0x400000) |
b9734f35 JJ |
1641 | { |
1642 | bfd_set_error (bfd_error_bad_value); | |
1643 | return FALSE; | |
1644 | } | |
1645 | ||
eea6121a | 1646 | h->plt.offset = s->size; |
b9734f35 JJ |
1647 | |
1648 | /* If this symbol is not defined in a regular file, and we are | |
1649 | not generating a shared library, then set the symbol to this | |
1650 | location in the .plt. This is required to make function | |
1651 | pointers compare as equal between the normal executable and | |
1652 | the shared library. */ | |
1653 | if (! info->shared | |
1654 | && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0) | |
1655 | { | |
1656 | h->root.u.def.section = s; | |
1657 | h->root.u.def.value = h->plt.offset; | |
1658 | } | |
1659 | ||
1660 | /* Make room for this entry. */ | |
eea6121a | 1661 | s->size += PLT_ENTRY_SIZE; |
b9734f35 JJ |
1662 | |
1663 | /* We also need to make an entry in the .rela.plt section. */ | |
eea6121a | 1664 | htab->srelplt->size += sizeof (Elf32_External_Rela); |
b9734f35 JJ |
1665 | } |
1666 | else | |
1667 | { | |
1668 | h->plt.offset = (bfd_vma) -1; | |
1669 | h->elf_link_hash_flags &= ~ELF_LINK_HASH_NEEDS_PLT; | |
1670 | } | |
1671 | } | |
1672 | else | |
1673 | { | |
1674 | h->plt.offset = (bfd_vma) -1; | |
1675 | h->elf_link_hash_flags &= ~ELF_LINK_HASH_NEEDS_PLT; | |
1676 | } | |
1677 | ||
1678 | /* If R_SPARC_TLS_IE_{HI22,LO10} symbol is now local to the binary, | |
1679 | make it a R_SPARC_TLS_LE_{HI22,LO10} requiring no TLS entry. */ | |
1680 | if (h->got.refcount > 0 | |
1681 | && !info->shared | |
1682 | && h->dynindx == -1 | |
1683 | && elf32_sparc_hash_entry(h)->tls_type == GOT_TLS_IE) | |
1684 | h->got.offset = (bfd_vma) -1; | |
1685 | else if (h->got.refcount > 0) | |
1686 | { | |
1687 | asection *s; | |
1688 | bfd_boolean dyn; | |
1689 | int tls_type = elf32_sparc_hash_entry(h)->tls_type; | |
1690 | ||
1691 | /* Make sure this symbol is output as a dynamic symbol. | |
1692 | Undefined weak syms won't yet be marked as dynamic. */ | |
1693 | if (h->dynindx == -1 | |
1694 | && (h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) == 0) | |
1695 | { | |
c152c796 | 1696 | if (! bfd_elf_link_record_dynamic_symbol (info, h)) |
b9734f35 JJ |
1697 | return FALSE; |
1698 | } | |
1699 | ||
1700 | s = htab->sgot; | |
eea6121a AM |
1701 | h->got.offset = s->size; |
1702 | s->size += 4; | |
b9734f35 JJ |
1703 | /* R_SPARC_TLS_GD_HI{22,LO10} needs 2 consecutive GOT slots. */ |
1704 | if (tls_type == GOT_TLS_GD) | |
eea6121a | 1705 | s->size += 4; |
b9734f35 JJ |
1706 | dyn = htab->elf.dynamic_sections_created; |
1707 | /* R_SPARC_TLS_IE_{HI22,LO10} needs one dynamic relocation, | |
1708 | R_SPARC_TLS_GD_{HI22,LO10} needs one if local symbol and two if | |
1709 | global. */ | |
1710 | if ((tls_type == GOT_TLS_GD && h->dynindx == -1) | |
1711 | || tls_type == GOT_TLS_IE) | |
eea6121a | 1712 | htab->srelgot->size += sizeof (Elf32_External_Rela); |
b9734f35 | 1713 | else if (tls_type == GOT_TLS_GD) |
eea6121a | 1714 | htab->srelgot->size += 2 * sizeof (Elf32_External_Rela); |
c152c796 | 1715 | else if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared, h)) |
eea6121a | 1716 | htab->srelgot->size += sizeof (Elf32_External_Rela); |
b9734f35 JJ |
1717 | } |
1718 | else | |
1719 | h->got.offset = (bfd_vma) -1; | |
1720 | ||
1721 | eh = (struct elf32_sparc_link_hash_entry *) h; | |
1722 | if (eh->dyn_relocs == NULL) | |
1723 | return TRUE; | |
1724 | ||
1725 | /* In the shared -Bsymbolic case, discard space allocated for | |
1726 | dynamic pc-relative relocs against symbols which turn out to be | |
1727 | defined in regular objects. For the normal shared case, discard | |
1728 | space for pc-relative relocs that have become local due to symbol | |
1729 | visibility changes. */ | |
1730 | ||
1731 | if (info->shared) | |
1732 | { | |
1733 | if ((h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) != 0 | |
1734 | && ((h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) != 0 | |
1735 | || info->symbolic)) | |
1736 | { | |
1737 | struct elf32_sparc_dyn_relocs **pp; | |
1738 | ||
1739 | for (pp = &eh->dyn_relocs; (p = *pp) != NULL; ) | |
1740 | { | |
1741 | p->count -= p->pc_count; | |
1742 | p->pc_count = 0; | |
1743 | if (p->count == 0) | |
1744 | *pp = p->next; | |
1745 | else | |
1746 | pp = &p->next; | |
1747 | } | |
1748 | } | |
1749 | } | |
1750 | else | |
1751 | { | |
1752 | /* For the non-shared case, discard space for relocs against | |
1753 | symbols which turn out to need copy relocs or are not | |
1754 | dynamic. */ | |
1755 | ||
1756 | if ((h->elf_link_hash_flags & ELF_LINK_NON_GOT_REF) == 0 | |
1757 | && (((h->elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC) != 0 | |
1758 | && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0) | |
1759 | || (htab->elf.dynamic_sections_created | |
1760 | && (h->root.type == bfd_link_hash_undefweak | |
1761 | || h->root.type == bfd_link_hash_undefined)))) | |
1762 | { | |
1763 | /* Make sure this symbol is output as a dynamic symbol. | |
1764 | Undefined weak syms won't yet be marked as dynamic. */ | |
1765 | if (h->dynindx == -1 | |
1766 | && (h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) == 0) | |
1767 | { | |
c152c796 | 1768 | if (! bfd_elf_link_record_dynamic_symbol (info, h)) |
b9734f35 JJ |
1769 | return FALSE; |
1770 | } | |
1771 | ||
1772 | /* If that succeeded, we know we'll be keeping all the | |
1773 | relocs. */ | |
1774 | if (h->dynindx != -1) | |
1775 | goto keep; | |
1776 | } | |
252b5132 | 1777 | |
b9734f35 | 1778 | eh->dyn_relocs = NULL; |
252b5132 | 1779 | |
b9734f35 | 1780 | keep: ; |
252b5132 RH |
1781 | } |
1782 | ||
b9734f35 JJ |
1783 | /* Finally, allocate space. */ |
1784 | for (p = eh->dyn_relocs; p != NULL; p = p->next) | |
252b5132 | 1785 | { |
b9734f35 | 1786 | asection *sreloc = elf_section_data (p->sec)->sreloc; |
eea6121a | 1787 | sreloc->size += p->count * sizeof (Elf32_External_Rela); |
252b5132 RH |
1788 | } |
1789 | ||
b9734f35 JJ |
1790 | return TRUE; |
1791 | } | |
252b5132 | 1792 | |
b9734f35 | 1793 | /* Find any dynamic relocs that apply to read-only sections. */ |
252b5132 | 1794 | |
b9734f35 JJ |
1795 | static bfd_boolean |
1796 | readonly_dynrelocs (h, inf) | |
1797 | struct elf_link_hash_entry *h; | |
1798 | PTR inf; | |
1799 | { | |
1800 | struct elf32_sparc_link_hash_entry *eh; | |
1801 | struct elf32_sparc_dyn_relocs *p; | |
1802 | ||
1803 | if (h->root.type == bfd_link_hash_warning) | |
1804 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
1805 | ||
1806 | eh = (struct elf32_sparc_link_hash_entry *) h; | |
1807 | for (p = eh->dyn_relocs; p != NULL; p = p->next) | |
1808 | { | |
1809 | asection *s = p->sec->output_section; | |
1810 | ||
1811 | if (s != NULL && (s->flags & SEC_READONLY) != 0) | |
1812 | { | |
1813 | struct bfd_link_info *info = (struct bfd_link_info *) inf; | |
1814 | ||
1815 | info->flags |= DF_TEXTREL; | |
1816 | ||
1817 | /* Not an error, just cut short the traversal. */ | |
1818 | return FALSE; | |
1819 | } | |
1820 | } | |
b34976b6 | 1821 | return TRUE; |
252b5132 RH |
1822 | } |
1823 | ||
1824 | /* Set the sizes of the dynamic sections. */ | |
1825 | ||
b34976b6 | 1826 | static bfd_boolean |
252b5132 | 1827 | elf32_sparc_size_dynamic_sections (output_bfd, info) |
db6751f2 | 1828 | bfd *output_bfd ATTRIBUTE_UNUSED; |
252b5132 RH |
1829 | struct bfd_link_info *info; |
1830 | { | |
b9734f35 | 1831 | struct elf32_sparc_link_hash_table *htab; |
252b5132 RH |
1832 | bfd *dynobj; |
1833 | asection *s; | |
b9734f35 | 1834 | bfd *ibfd; |
252b5132 | 1835 | |
b9734f35 JJ |
1836 | htab = elf32_sparc_hash_table (info); |
1837 | dynobj = htab->elf.dynobj; | |
252b5132 RH |
1838 | BFD_ASSERT (dynobj != NULL); |
1839 | ||
1840 | if (elf_hash_table (info)->dynamic_sections_created) | |
1841 | { | |
1842 | /* Set the contents of the .interp section to the interpreter. */ | |
36af4a4e | 1843 | if (info->executable) |
252b5132 RH |
1844 | { |
1845 | s = bfd_get_section_by_name (dynobj, ".interp"); | |
1846 | BFD_ASSERT (s != NULL); | |
eea6121a | 1847 | s->size = sizeof ELF_DYNAMIC_INTERPRETER; |
252b5132 RH |
1848 | s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER; |
1849 | } | |
b9734f35 | 1850 | } |
252b5132 | 1851 | |
b9734f35 JJ |
1852 | /* Set up .got offsets for local syms, and space for local dynamic |
1853 | relocs. */ | |
1854 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next) | |
1855 | { | |
1856 | bfd_signed_vma *local_got; | |
1857 | bfd_signed_vma *end_local_got; | |
1858 | char *local_tls_type; | |
1859 | bfd_size_type locsymcount; | |
1860 | Elf_Internal_Shdr *symtab_hdr; | |
1861 | asection *srel; | |
1862 | ||
1863 | if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour) | |
1864 | continue; | |
1865 | ||
1866 | for (s = ibfd->sections; s != NULL; s = s->next) | |
1867 | { | |
1868 | struct elf32_sparc_dyn_relocs *p; | |
1869 | ||
1870 | for (p = *((struct elf32_sparc_dyn_relocs **) | |
1871 | &elf_section_data (s)->local_dynrel); | |
1872 | p != NULL; | |
1873 | p = p->next) | |
1874 | { | |
1875 | if (!bfd_is_abs_section (p->sec) | |
1876 | && bfd_is_abs_section (p->sec->output_section)) | |
1877 | { | |
1878 | /* Input section has been discarded, either because | |
1879 | it is a copy of a linkonce section or due to | |
1880 | linker script /DISCARD/, so we'll be discarding | |
1881 | the relocs too. */ | |
1882 | } | |
1883 | else if (p->count != 0) | |
1884 | { | |
1885 | srel = elf_section_data (p->sec)->sreloc; | |
eea6121a | 1886 | srel->size += p->count * sizeof (Elf32_External_Rela); |
b9734f35 JJ |
1887 | if ((p->sec->output_section->flags & SEC_READONLY) != 0) |
1888 | info->flags |= DF_TEXTREL; | |
1889 | } | |
1890 | } | |
1891 | } | |
1892 | ||
1893 | local_got = elf_local_got_refcounts (ibfd); | |
1894 | if (!local_got) | |
1895 | continue; | |
1896 | ||
1897 | symtab_hdr = &elf_tdata (ibfd)->symtab_hdr; | |
1898 | locsymcount = symtab_hdr->sh_info; | |
1899 | end_local_got = local_got + locsymcount; | |
1900 | local_tls_type = elf32_sparc_local_got_tls_type (ibfd); | |
1901 | s = htab->sgot; | |
1902 | srel = htab->srelgot; | |
1903 | for (; local_got < end_local_got; ++local_got, ++local_tls_type) | |
1904 | { | |
1905 | if (*local_got > 0) | |
1906 | { | |
eea6121a AM |
1907 | *local_got = s->size; |
1908 | s->size += 4; | |
b9734f35 | 1909 | if (*local_tls_type == GOT_TLS_GD) |
eea6121a | 1910 | s->size += 4; |
b9734f35 JJ |
1911 | if (info->shared |
1912 | || *local_tls_type == GOT_TLS_GD | |
1913 | || *local_tls_type == GOT_TLS_IE) | |
eea6121a | 1914 | srel->size += sizeof (Elf32_External_Rela); |
b9734f35 JJ |
1915 | } |
1916 | else | |
1917 | *local_got = (bfd_vma) -1; | |
1918 | } | |
1919 | } | |
1920 | ||
1921 | if (htab->tls_ldm_got.refcount > 0) | |
1922 | { | |
1923 | /* Allocate 2 got entries and 1 dynamic reloc for | |
1924 | R_SPARC_TLS_LDM_{HI22,LO10} relocs. */ | |
eea6121a AM |
1925 | htab->tls_ldm_got.offset = htab->sgot->size; |
1926 | htab->sgot->size += 8; | |
1927 | htab->srelgot->size += sizeof (Elf32_External_Rela); | |
252b5132 RH |
1928 | } |
1929 | else | |
b9734f35 JJ |
1930 | htab->tls_ldm_got.offset = -1; |
1931 | ||
1932 | /* Allocate global sym .plt and .got entries, and space for global | |
1933 | sym dynamic relocs. */ | |
1934 | elf_link_hash_traverse (&htab->elf, allocate_dynrelocs, (PTR) info); | |
1935 | ||
1936 | if (elf_hash_table (info)->dynamic_sections_created) | |
252b5132 | 1937 | { |
b9734f35 | 1938 | /* Make space for the trailing nop in .plt. */ |
eea6121a AM |
1939 | if (htab->splt->size > 0) |
1940 | htab->splt->size += 4; | |
b9734f35 JJ |
1941 | |
1942 | /* If the .got section is more than 0x1000 bytes, we add | |
1943 | 0x1000 to the value of _GLOBAL_OFFSET_TABLE_, so that 13 | |
1944 | bit relocations have a greater chance of working. */ | |
eea6121a | 1945 | if (htab->sgot->size >= 0x1000 |
b9734f35 JJ |
1946 | && elf_hash_table (info)->hgot->root.u.def.value == 0) |
1947 | elf_hash_table (info)->hgot->root.u.def.value = 0x1000; | |
252b5132 RH |
1948 | } |
1949 | ||
1950 | /* The check_relocs and adjust_dynamic_symbol entry points have | |
1951 | determined the sizes of the various dynamic sections. Allocate | |
1952 | memory for them. */ | |
252b5132 RH |
1953 | for (s = dynobj->sections; s != NULL; s = s->next) |
1954 | { | |
1955 | const char *name; | |
b9734f35 | 1956 | bfd_boolean strip = FALSE; |
252b5132 RH |
1957 | |
1958 | if ((s->flags & SEC_LINKER_CREATED) == 0) | |
1959 | continue; | |
1960 | ||
1961 | /* It's OK to base decisions on the section name, because none | |
1962 | of the dynobj section names depend upon the input files. */ | |
1963 | name = bfd_get_section_name (dynobj, s); | |
1964 | ||
252b5132 RH |
1965 | if (strncmp (name, ".rela", 5) == 0) |
1966 | { | |
eea6121a | 1967 | if (s->size == 0) |
252b5132 RH |
1968 | { |
1969 | /* If we don't need this section, strip it from the | |
1970 | output file. This is to handle .rela.bss and | |
1971 | .rel.plt. We must create it in | |
1972 | create_dynamic_sections, because it must be created | |
1973 | before the linker maps input sections to output | |
1974 | sections. The linker does that before | |
1975 | adjust_dynamic_symbol is called, and it is that | |
1976 | function which decides whether anything needs to go | |
1977 | into these sections. */ | |
b34976b6 | 1978 | strip = TRUE; |
252b5132 RH |
1979 | } |
1980 | else | |
1981 | { | |
252b5132 RH |
1982 | /* We use the reloc_count field as a counter if we need |
1983 | to copy relocs into the output file. */ | |
1984 | s->reloc_count = 0; | |
1985 | } | |
1986 | } | |
b9734f35 | 1987 | else if (s != htab->splt && s != htab->sgot) |
252b5132 RH |
1988 | { |
1989 | /* It's not one of our sections, so don't allocate space. */ | |
1990 | continue; | |
1991 | } | |
1992 | ||
1993 | if (strip) | |
1994 | { | |
7f8d5fc9 | 1995 | _bfd_strip_section_from_output (info, s); |
252b5132 RH |
1996 | continue; |
1997 | } | |
1998 | ||
1999 | /* Allocate memory for the section contents. */ | |
7a9af8c4 NC |
2000 | /* FIXME: This should be a call to bfd_alloc not bfd_zalloc. |
2001 | Unused entries should be reclaimed before the section's contents | |
2002 | are written out, but at the moment this does not happen. Thus in | |
2003 | order to prevent writing out garbage, we initialise the section's | |
2004 | contents to zero. */ | |
eea6121a AM |
2005 | s->contents = (bfd_byte *) bfd_zalloc (dynobj, s->size); |
2006 | if (s->contents == NULL && s->size != 0) | |
b34976b6 | 2007 | return FALSE; |
252b5132 RH |
2008 | } |
2009 | ||
2010 | if (elf_hash_table (info)->dynamic_sections_created) | |
2011 | { | |
2012 | /* Add some entries to the .dynamic section. We fill in the | |
2013 | values later, in elf32_sparc_finish_dynamic_sections, but we | |
2014 | must add the entries now so that we get the correct size for | |
2015 | the .dynamic section. The DT_DEBUG entry is filled in by the | |
2016 | dynamic linker and used by the debugger. */ | |
dc810e39 | 2017 | #define add_dynamic_entry(TAG, VAL) \ |
5a580b3a | 2018 | _bfd_elf_add_dynamic_entry (info, TAG, VAL) |
dc810e39 | 2019 | |
36af4a4e | 2020 | if (info->executable) |
252b5132 | 2021 | { |
dc810e39 | 2022 | if (!add_dynamic_entry (DT_DEBUG, 0)) |
b34976b6 | 2023 | return FALSE; |
252b5132 RH |
2024 | } |
2025 | ||
eea6121a | 2026 | if (htab->srelplt->size != 0) |
252b5132 | 2027 | { |
dc810e39 AM |
2028 | if (!add_dynamic_entry (DT_PLTGOT, 0) |
2029 | || !add_dynamic_entry (DT_PLTRELSZ, 0) | |
2030 | || !add_dynamic_entry (DT_PLTREL, DT_RELA) | |
2031 | || !add_dynamic_entry (DT_JMPREL, 0)) | |
b34976b6 | 2032 | return FALSE; |
252b5132 RH |
2033 | } |
2034 | ||
dc810e39 AM |
2035 | if (!add_dynamic_entry (DT_RELA, 0) |
2036 | || !add_dynamic_entry (DT_RELASZ, 0) | |
2037 | || !add_dynamic_entry (DT_RELAENT, sizeof (Elf32_External_Rela))) | |
b34976b6 | 2038 | return FALSE; |
252b5132 | 2039 | |
b9734f35 JJ |
2040 | /* If any dynamic relocs apply to a read-only section, |
2041 | then we need a DT_TEXTREL entry. */ | |
2042 | if ((info->flags & DF_TEXTREL) == 0) | |
2043 | elf_link_hash_traverse (&htab->elf, readonly_dynrelocs, | |
2044 | (PTR) info); | |
2045 | ||
db6751f2 | 2046 | if (info->flags & DF_TEXTREL) |
252b5132 | 2047 | { |
dc810e39 | 2048 | if (!add_dynamic_entry (DT_TEXTREL, 0)) |
b34976b6 | 2049 | return FALSE; |
252b5132 RH |
2050 | } |
2051 | } | |
dc810e39 | 2052 | #undef add_dynamic_entry |
252b5132 | 2053 | |
b34976b6 | 2054 | return TRUE; |
252b5132 RH |
2055 | } |
2056 | ||
f0abc2a1 AM |
2057 | struct elf32_sparc_section_data |
2058 | { | |
2059 | struct bfd_elf_section_data elf; | |
2060 | unsigned int do_relax; | |
2061 | }; | |
2062 | ||
2063 | #define sec_do_relax(sec) \ | |
68bfbfcc | 2064 | ((struct elf32_sparc_section_data *) elf_section_data (sec))->do_relax |
f0abc2a1 AM |
2065 | |
2066 | static bfd_boolean | |
2067 | elf32_sparc_new_section_hook (abfd, sec) | |
2068 | bfd *abfd; | |
2069 | asection *sec; | |
2070 | { | |
2071 | struct elf32_sparc_section_data *sdata; | |
2072 | bfd_size_type amt = sizeof (*sdata); | |
2073 | ||
2074 | sdata = (struct elf32_sparc_section_data *) bfd_zalloc (abfd, amt); | |
2075 | if (sdata == NULL) | |
2076 | return FALSE; | |
2077 | sec->used_by_bfd = (PTR) sdata; | |
2078 | ||
2079 | return _bfd_elf_new_section_hook (abfd, sec); | |
2080 | } | |
f7775d95 | 2081 | |
b34976b6 | 2082 | static bfd_boolean |
f7775d95 JJ |
2083 | elf32_sparc_relax_section (abfd, section, link_info, again) |
2084 | bfd *abfd ATTRIBUTE_UNUSED; | |
2085 | asection *section ATTRIBUTE_UNUSED; | |
2086 | struct bfd_link_info *link_info ATTRIBUTE_UNUSED; | |
b34976b6 | 2087 | bfd_boolean *again; |
f7775d95 | 2088 | { |
b34976b6 | 2089 | *again = FALSE; |
f0abc2a1 | 2090 | sec_do_relax (section) = 1; |
b34976b6 | 2091 | return TRUE; |
f7775d95 JJ |
2092 | } |
2093 | ||
b9734f35 JJ |
2094 | /* Return the base VMA address which should be subtracted from real addresses |
2095 | when resolving @dtpoff relocation. | |
2096 | This is PT_TLS segment p_vaddr. */ | |
2097 | ||
2098 | static bfd_vma | |
2099 | dtpoff_base (info) | |
2100 | struct bfd_link_info *info; | |
2101 | { | |
e1918d23 AM |
2102 | /* If tls_sec is NULL, we should have signalled an error already. */ |
2103 | if (elf_hash_table (info)->tls_sec == NULL) | |
b9734f35 | 2104 | return 0; |
e1918d23 | 2105 | return elf_hash_table (info)->tls_sec->vma; |
b9734f35 JJ |
2106 | } |
2107 | ||
2108 | /* Return the relocation value for @tpoff relocation | |
2109 | if STT_TLS virtual address is ADDRESS. */ | |
2110 | ||
2111 | static bfd_vma | |
2112 | tpoff (info, address) | |
2113 | struct bfd_link_info *info; | |
2114 | bfd_vma address; | |
2115 | { | |
e1918d23 | 2116 | struct elf_link_hash_table *htab = elf_hash_table (info); |
b9734f35 | 2117 | |
e1918d23 AM |
2118 | /* If tls_sec is NULL, we should have signalled an error already. */ |
2119 | if (htab->tls_sec == NULL) | |
b9734f35 | 2120 | return 0; |
e1918d23 | 2121 | return address - htab->tls_size - htab->tls_sec->vma; |
b9734f35 | 2122 | } |
e36f7d53 | 2123 | |
252b5132 RH |
2124 | /* Relocate a SPARC ELF section. */ |
2125 | ||
b34976b6 | 2126 | static bfd_boolean |
252b5132 RH |
2127 | elf32_sparc_relocate_section (output_bfd, info, input_bfd, input_section, |
2128 | contents, relocs, local_syms, local_sections) | |
2129 | bfd *output_bfd; | |
2130 | struct bfd_link_info *info; | |
2131 | bfd *input_bfd; | |
2132 | asection *input_section; | |
2133 | bfd_byte *contents; | |
2134 | Elf_Internal_Rela *relocs; | |
2135 | Elf_Internal_Sym *local_syms; | |
2136 | asection **local_sections; | |
2137 | { | |
b9734f35 | 2138 | struct elf32_sparc_link_hash_table *htab; |
252b5132 RH |
2139 | Elf_Internal_Shdr *symtab_hdr; |
2140 | struct elf_link_hash_entry **sym_hashes; | |
2141 | bfd_vma *local_got_offsets; | |
2142 | bfd_vma got_base; | |
252b5132 RH |
2143 | asection *sreloc; |
2144 | Elf_Internal_Rela *rel; | |
2145 | Elf_Internal_Rela *relend; | |
2146 | ||
1049f94e | 2147 | if (info->relocatable) |
b34976b6 | 2148 | return TRUE; |
f0fe0e16 | 2149 | |
b9734f35 | 2150 | htab = elf32_sparc_hash_table (info); |
252b5132 RH |
2151 | symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr; |
2152 | sym_hashes = elf_sym_hashes (input_bfd); | |
2153 | local_got_offsets = elf_local_got_offsets (input_bfd); | |
2154 | ||
2155 | if (elf_hash_table (info)->hgot == NULL) | |
2156 | got_base = 0; | |
2157 | else | |
2158 | got_base = elf_hash_table (info)->hgot->root.u.def.value; | |
2159 | ||
b9734f35 | 2160 | sreloc = elf_section_data (input_section)->sreloc; |
252b5132 RH |
2161 | |
2162 | rel = relocs; | |
2163 | relend = relocs + input_section->reloc_count; | |
2164 | for (; rel < relend; rel++) | |
2165 | { | |
b9734f35 | 2166 | int r_type, tls_type; |
252b5132 RH |
2167 | reloc_howto_type *howto; |
2168 | unsigned long r_symndx; | |
2169 | struct elf_link_hash_entry *h; | |
2170 | Elf_Internal_Sym *sym; | |
2171 | asection *sec; | |
e36f7d53 | 2172 | bfd_vma relocation, off; |
252b5132 | 2173 | bfd_reloc_status_type r; |
b34976b6 AM |
2174 | bfd_boolean is_plt = FALSE; |
2175 | bfd_boolean unresolved_reloc; | |
252b5132 RH |
2176 | |
2177 | r_type = ELF32_R_TYPE (rel->r_info); | |
2178 | ||
435b1e90 | 2179 | if (r_type == R_SPARC_GNU_VTINHERIT |
26e41594 AM |
2180 | || r_type == R_SPARC_GNU_VTENTRY) |
2181 | continue; | |
252b5132 | 2182 | |
60dac299 | 2183 | if (r_type < 0 || r_type >= (int) R_SPARC_max_std) |
252b5132 RH |
2184 | { |
2185 | bfd_set_error (bfd_error_bad_value); | |
b34976b6 | 2186 | return FALSE; |
252b5132 RH |
2187 | } |
2188 | howto = _bfd_sparc_elf_howto_table + r_type; | |
2189 | ||
252b5132 | 2190 | /* This is a final link. */ |
f0fe0e16 | 2191 | r_symndx = ELF32_R_SYM (rel->r_info); |
252b5132 RH |
2192 | h = NULL; |
2193 | sym = NULL; | |
2194 | sec = NULL; | |
b34976b6 | 2195 | unresolved_reloc = FALSE; |
252b5132 RH |
2196 | if (r_symndx < symtab_hdr->sh_info) |
2197 | { | |
2198 | sym = local_syms + r_symndx; | |
2199 | sec = local_sections[r_symndx]; | |
8517fae7 | 2200 | relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel); |
252b5132 RH |
2201 | } |
2202 | else | |
2203 | { | |
560e09e9 | 2204 | bfd_boolean warned ATTRIBUTE_UNUSED; |
e36f7d53 | 2205 | |
b2a8e766 AM |
2206 | RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel, |
2207 | r_symndx, symtab_hdr, sym_hashes, | |
2208 | h, sec, relocation, | |
2209 | unresolved_reloc, warned); | |
252b5132 RH |
2210 | } |
2211 | ||
2212 | switch (r_type) | |
2213 | { | |
2214 | case R_SPARC_GOT10: | |
2215 | case R_SPARC_GOT13: | |
2216 | case R_SPARC_GOT22: | |
2217 | /* Relocation is to the entry for this symbol in the global | |
26e41594 | 2218 | offset table. */ |
b9734f35 JJ |
2219 | if (htab->sgot == NULL) |
2220 | abort (); | |
252b5132 RH |
2221 | |
2222 | if (h != NULL) | |
2223 | { | |
b34976b6 | 2224 | bfd_boolean dyn; |
252b5132 RH |
2225 | |
2226 | off = h->got.offset; | |
2227 | BFD_ASSERT (off != (bfd_vma) -1); | |
e36f7d53 | 2228 | dyn = elf_hash_table (info)->dynamic_sections_created; |
252b5132 | 2229 | |
c152c796 | 2230 | if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared, h) |
252b5132 | 2231 | || (info->shared |
e36f7d53 RH |
2232 | && (info->symbolic |
2233 | || h->dynindx == -1 | |
2234 | || (h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL)) | |
252b5132 RH |
2235 | && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR))) |
2236 | { | |
2237 | /* This is actually a static link, or it is a | |
26e41594 AM |
2238 | -Bsymbolic link and the symbol is defined |
2239 | locally, or the symbol was forced to be local | |
2240 | because of a version file. We must initialize | |
2241 | this entry in the global offset table. Since the | |
2242 | offset must always be a multiple of 4, we use the | |
2243 | least significant bit to record whether we have | |
2244 | initialized it already. | |
252b5132 RH |
2245 | |
2246 | When doing a dynamic link, we create a .rela.got | |
2247 | relocation entry to initialize the value. This | |
2248 | is done in the finish_dynamic_symbol routine. */ | |
2249 | if ((off & 1) != 0) | |
2250 | off &= ~1; | |
2251 | else | |
2252 | { | |
2253 | bfd_put_32 (output_bfd, relocation, | |
b9734f35 | 2254 | htab->sgot->contents + off); |
252b5132 RH |
2255 | h->got.offset |= 1; |
2256 | } | |
2257 | } | |
e36f7d53 | 2258 | else |
b34976b6 | 2259 | unresolved_reloc = FALSE; |
252b5132 RH |
2260 | } |
2261 | else | |
2262 | { | |
252b5132 RH |
2263 | BFD_ASSERT (local_got_offsets != NULL |
2264 | && local_got_offsets[r_symndx] != (bfd_vma) -1); | |
2265 | ||
2266 | off = local_got_offsets[r_symndx]; | |
2267 | ||
2268 | /* The offset must always be a multiple of 4. We use | |
2269 | the least significant bit to record whether we have | |
2270 | already processed this entry. */ | |
2271 | if ((off & 1) != 0) | |
2272 | off &= ~1; | |
2273 | else | |
2274 | { | |
252b5132 RH |
2275 | |
2276 | if (info->shared) | |
2277 | { | |
b34976b6 | 2278 | asection *s; |
252b5132 | 2279 | Elf_Internal_Rela outrel; |
b34976b6 | 2280 | bfd_byte *loc; |
252b5132 RH |
2281 | |
2282 | /* We need to generate a R_SPARC_RELATIVE reloc | |
2283 | for the dynamic linker. */ | |
b9734f35 | 2284 | s = htab->srelgot; |
b34976b6 | 2285 | BFD_ASSERT (s != NULL); |
252b5132 | 2286 | |
b9734f35 JJ |
2287 | outrel.r_offset = (htab->sgot->output_section->vma |
2288 | + htab->sgot->output_offset | |
252b5132 RH |
2289 | + off); |
2290 | outrel.r_info = ELF32_R_INFO (0, R_SPARC_RELATIVE); | |
6b3ac709 JJ |
2291 | outrel.r_addend = relocation; |
2292 | relocation = 0; | |
b34976b6 AM |
2293 | loc = s->contents; |
2294 | loc += s->reloc_count++ * sizeof (Elf32_External_Rela); | |
2295 | bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc); | |
252b5132 RH |
2296 | } |
2297 | ||
b9734f35 JJ |
2298 | bfd_put_32 (output_bfd, relocation, |
2299 | htab->sgot->contents + off); | |
252b5132 RH |
2300 | local_got_offsets[r_symndx] |= 1; |
2301 | } | |
252b5132 | 2302 | } |
b9734f35 | 2303 | relocation = htab->sgot->output_offset + off - got_base; |
252b5132 RH |
2304 | break; |
2305 | ||
bd5e6e7e JJ |
2306 | case R_SPARC_PLT32: |
2307 | if (h == NULL || h->plt.offset == (bfd_vma) -1) | |
2308 | { | |
2309 | r_type = R_SPARC_32; | |
2310 | goto r_sparc_plt32; | |
2311 | } | |
2312 | /* Fall through. */ | |
252b5132 | 2313 | case R_SPARC_WPLT30: |
b9734f35 | 2314 | r_sparc_wplt30: |
252b5132 | 2315 | /* Relocation is to the entry for this symbol in the |
26e41594 | 2316 | procedure linkage table. */ |
252b5132 RH |
2317 | |
2318 | /* The Solaris native assembler will generate a WPLT30 reloc | |
2319 | for a local symbol if you assemble a call from one | |
2320 | section to another when using -K pic. We treat it as | |
2321 | WDISP30. */ | |
2322 | if (h == NULL) | |
2323 | break; | |
2324 | ||
6de00a78 | 2325 | if (h->plt.offset == (bfd_vma) -1 || htab->splt == NULL) |
252b5132 RH |
2326 | { |
2327 | /* We didn't make a PLT entry for this symbol. This | |
26e41594 AM |
2328 | happens when statically linking PIC code, or when |
2329 | using -Bsymbolic. */ | |
252b5132 RH |
2330 | break; |
2331 | } | |
2332 | ||
b9734f35 JJ |
2333 | relocation = (htab->splt->output_section->vma |
2334 | + htab->splt->output_offset | |
252b5132 | 2335 | + h->plt.offset); |
b34976b6 | 2336 | unresolved_reloc = FALSE; |
bd5e6e7e JJ |
2337 | if (r_type == R_SPARC_PLT32) |
2338 | { | |
2339 | r_type = R_SPARC_32; | |
b34976b6 | 2340 | is_plt = TRUE; |
bd5e6e7e JJ |
2341 | goto r_sparc_plt32; |
2342 | } | |
252b5132 RH |
2343 | break; |
2344 | ||
2345 | case R_SPARC_PC10: | |
2346 | case R_SPARC_PC22: | |
2347 | if (h != NULL | |
2348 | && strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0) | |
2349 | break; | |
2350 | /* Fall through. */ | |
2351 | case R_SPARC_DISP8: | |
2352 | case R_SPARC_DISP16: | |
2353 | case R_SPARC_DISP32: | |
2354 | case R_SPARC_WDISP30: | |
2355 | case R_SPARC_WDISP22: | |
2356 | case R_SPARC_WDISP19: | |
2357 | case R_SPARC_WDISP16: | |
252b5132 RH |
2358 | case R_SPARC_8: |
2359 | case R_SPARC_16: | |
2360 | case R_SPARC_32: | |
2361 | case R_SPARC_HI22: | |
2362 | case R_SPARC_22: | |
2363 | case R_SPARC_13: | |
2364 | case R_SPARC_LO10: | |
0f2712ed | 2365 | case R_SPARC_UA16: |
252b5132 | 2366 | case R_SPARC_UA32: |
bd5e6e7e | 2367 | r_sparc_plt32: |
b9734f35 JJ |
2368 | /* r_symndx will be zero only for relocs against symbols |
2369 | from removed linkonce sections, or sections discarded by | |
2370 | a linker script. */ | |
2371 | if (r_symndx == 0 | |
2372 | || (input_section->flags & SEC_ALLOC) == 0) | |
2373 | break; | |
2374 | ||
2375 | if ((info->shared | |
4dc570c2 JJ |
2376 | && (h == NULL |
2377 | || ELF_ST_VISIBILITY (h->other) == STV_DEFAULT | |
2378 | || h->root.type != bfd_link_hash_undefweak) | |
b9734f35 JJ |
2379 | && (! howto->pc_relative |
2380 | || (h != NULL | |
2381 | && h->dynindx != -1 | |
2382 | && (! info->symbolic | |
2383 | || (h->elf_link_hash_flags | |
2384 | & ELF_LINK_HASH_DEF_REGULAR) == 0)))) | |
2385 | || (!info->shared | |
2386 | && h != NULL | |
2387 | && h->dynindx != -1 | |
2388 | && (h->elf_link_hash_flags & ELF_LINK_NON_GOT_REF) == 0 | |
2389 | && (((h->elf_link_hash_flags | |
2390 | & ELF_LINK_HASH_DEF_DYNAMIC) != 0 | |
2391 | && (h->elf_link_hash_flags | |
2392 | & ELF_LINK_HASH_DEF_REGULAR) == 0) | |
2393 | || h->root.type == bfd_link_hash_undefweak | |
2394 | || h->root.type == bfd_link_hash_undefined))) | |
252b5132 RH |
2395 | { |
2396 | Elf_Internal_Rela outrel; | |
b34976b6 AM |
2397 | bfd_byte *loc; |
2398 | bfd_boolean skip, relocate = FALSE; | |
252b5132 RH |
2399 | |
2400 | /* When generating a shared object, these relocations | |
26e41594 AM |
2401 | are copied into the output file to be resolved at run |
2402 | time. */ | |
252b5132 | 2403 | |
b9734f35 | 2404 | BFD_ASSERT (sreloc != NULL); |
252b5132 | 2405 | |
b34976b6 | 2406 | skip = FALSE; |
252b5132 | 2407 | |
c629eae0 JJ |
2408 | outrel.r_offset = |
2409 | _bfd_elf_section_offset (output_bfd, info, input_section, | |
2410 | rel->r_offset); | |
2411 | if (outrel.r_offset == (bfd_vma) -1) | |
b34976b6 | 2412 | skip = TRUE; |
0bb2d96a | 2413 | else if (outrel.r_offset == (bfd_vma) -2) |
b34976b6 | 2414 | skip = TRUE, relocate = TRUE; |
252b5132 RH |
2415 | outrel.r_offset += (input_section->output_section->vma |
2416 | + input_section->output_offset); | |
2417 | ||
20278fa3 JJ |
2418 | /* Optimize unaligned reloc usage now that we know where |
2419 | it finally resides. */ | |
2420 | switch (r_type) | |
2421 | { | |
2422 | case R_SPARC_16: | |
2423 | if (outrel.r_offset & 1) | |
2424 | r_type = R_SPARC_UA16; | |
2425 | break; | |
2426 | case R_SPARC_UA16: | |
2427 | if (!(outrel.r_offset & 1)) | |
2428 | r_type = R_SPARC_16; | |
2429 | break; | |
2430 | case R_SPARC_32: | |
2431 | if (outrel.r_offset & 3) | |
2432 | r_type = R_SPARC_UA32; | |
2433 | break; | |
2434 | case R_SPARC_UA32: | |
2435 | if (!(outrel.r_offset & 3)) | |
2436 | r_type = R_SPARC_32; | |
2437 | break; | |
b88a866a JJ |
2438 | case R_SPARC_DISP8: |
2439 | case R_SPARC_DISP16: | |
2440 | case R_SPARC_DISP32: | |
2441 | /* If the symbol is not dynamic, we should not keep | |
2442 | a dynamic relocation. But an .rela.* slot has been | |
2443 | allocated for it, output R_SPARC_NONE. | |
2444 | FIXME: Add code tracking needed dynamic relocs as | |
2445 | e.g. i386 has. */ | |
2446 | if (h->dynindx == -1) | |
b34976b6 | 2447 | skip = TRUE, relocate = TRUE; |
b88a866a | 2448 | break; |
20278fa3 JJ |
2449 | } |
2450 | ||
252b5132 RH |
2451 | if (skip) |
2452 | memset (&outrel, 0, sizeof outrel); | |
2453 | /* h->dynindx may be -1 if the symbol was marked to | |
26e41594 | 2454 | become local. */ |
bd5e6e7e | 2455 | else if (h != NULL && ! is_plt |
252b5132 RH |
2456 | && ((! info->symbolic && h->dynindx != -1) |
2457 | || (h->elf_link_hash_flags | |
2458 | & ELF_LINK_HASH_DEF_REGULAR) == 0)) | |
2459 | { | |
2460 | BFD_ASSERT (h->dynindx != -1); | |
2461 | outrel.r_info = ELF32_R_INFO (h->dynindx, r_type); | |
2462 | outrel.r_addend = rel->r_addend; | |
2463 | } | |
2464 | else | |
2465 | { | |
1fbc4a84 | 2466 | if (r_type == R_SPARC_32) |
252b5132 RH |
2467 | { |
2468 | outrel.r_info = ELF32_R_INFO (0, R_SPARC_RELATIVE); | |
2469 | outrel.r_addend = relocation + rel->r_addend; | |
2470 | } | |
2471 | else | |
2472 | { | |
2473 | long indx; | |
2474 | ||
bd5e6e7e | 2475 | if (is_plt) |
b9734f35 | 2476 | sec = htab->splt; |
8517fae7 AM |
2477 | |
2478 | if (bfd_is_abs_section (sec)) | |
252b5132 RH |
2479 | indx = 0; |
2480 | else if (sec == NULL || sec->owner == NULL) | |
2481 | { | |
2482 | bfd_set_error (bfd_error_bad_value); | |
b34976b6 | 2483 | return FALSE; |
252b5132 RH |
2484 | } |
2485 | else | |
2486 | { | |
2487 | asection *osec; | |
2488 | ||
2489 | osec = sec->output_section; | |
2490 | indx = elf_section_data (osec)->dynindx; | |
2491 | ||
2492 | /* FIXME: we really should be able to link non-pic | |
2493 | shared libraries. */ | |
2494 | if (indx == 0) | |
2495 | { | |
2496 | BFD_FAIL (); | |
2497 | (*_bfd_error_handler) | |
2498 | (_("%s: probably compiled without -fPIC?"), | |
8f615d07 | 2499 | bfd_archive_filename (input_bfd)); |
252b5132 | 2500 | bfd_set_error (bfd_error_bad_value); |
b34976b6 | 2501 | return FALSE; |
252b5132 RH |
2502 | } |
2503 | } | |
2504 | ||
2505 | outrel.r_info = ELF32_R_INFO (indx, r_type); | |
840a9995 | 2506 | outrel.r_addend = relocation + rel->r_addend; |
252b5132 RH |
2507 | } |
2508 | } | |
2509 | ||
b34976b6 AM |
2510 | loc = sreloc->contents; |
2511 | loc += sreloc->reloc_count++ * sizeof (Elf32_External_Rela); | |
2512 | bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc); | |
252b5132 RH |
2513 | |
2514 | /* This reloc will be computed at runtime, so there's no | |
26e41594 | 2515 | need to do anything now. */ |
0bb2d96a JJ |
2516 | if (! relocate) |
2517 | continue; | |
252b5132 RH |
2518 | } |
2519 | break; | |
2520 | ||
b9734f35 JJ |
2521 | case R_SPARC_TLS_GD_HI22: |
2522 | if (! elf32_sparc_tdata (input_bfd)->has_tlsgd) | |
2523 | { | |
2524 | /* R_SPARC_REV32 used the same reloc number as | |
2525 | R_SPARC_TLS_GD_HI22. */ | |
2526 | r_type = R_SPARC_REV32; | |
2527 | break; | |
2528 | } | |
2529 | /* Fall through */ | |
2530 | ||
2531 | case R_SPARC_TLS_GD_LO10: | |
2532 | case R_SPARC_TLS_IE_HI22: | |
2533 | case R_SPARC_TLS_IE_LO10: | |
2534 | r_type = elf32_sparc_tls_transition (info, input_bfd, r_type, | |
2535 | h == NULL); | |
2536 | tls_type = GOT_UNKNOWN; | |
2537 | if (h == NULL && local_got_offsets) | |
2538 | tls_type = elf32_sparc_local_got_tls_type (input_bfd) [r_symndx]; | |
2539 | else if (h != NULL) | |
2540 | { | |
2541 | tls_type = elf32_sparc_hash_entry(h)->tls_type; | |
2542 | if (!info->shared && h->dynindx == -1 && tls_type == GOT_TLS_IE) | |
2543 | switch (ELF32_R_TYPE (rel->r_info)) | |
2544 | { | |
2545 | case R_SPARC_TLS_GD_HI22: | |
2546 | case R_SPARC_TLS_IE_HI22: | |
2547 | r_type = R_SPARC_TLS_LE_HIX22; | |
2548 | break; | |
2549 | default: | |
2550 | r_type = R_SPARC_TLS_LE_LOX10; | |
2551 | break; | |
2552 | } | |
2553 | } | |
2554 | if (tls_type == GOT_TLS_IE) | |
2555 | switch (r_type) | |
2556 | { | |
2557 | case R_SPARC_TLS_GD_HI22: | |
2558 | r_type = R_SPARC_TLS_IE_HI22; | |
2559 | break; | |
2560 | case R_SPARC_TLS_GD_LO10: | |
2561 | r_type = R_SPARC_TLS_IE_LO10; | |
2562 | break; | |
2563 | } | |
2564 | ||
2565 | if (r_type == R_SPARC_TLS_LE_HIX22) | |
2566 | { | |
2567 | relocation = tpoff (info, relocation); | |
2568 | break; | |
2569 | } | |
2570 | if (r_type == R_SPARC_TLS_LE_LOX10) | |
2571 | { | |
2572 | /* Change add into xor. */ | |
2573 | relocation = tpoff (info, relocation); | |
2574 | bfd_put_32 (output_bfd, (bfd_get_32 (input_bfd, | |
2575 | contents + rel->r_offset) | |
2576 | | 0x80182000), contents + rel->r_offset); | |
2577 | break; | |
2578 | } | |
2579 | ||
26e41594 | 2580 | if (h != NULL) |
b9734f35 JJ |
2581 | { |
2582 | off = h->got.offset; | |
2583 | h->got.offset |= 1; | |
2584 | } | |
2585 | else | |
2586 | { | |
2587 | BFD_ASSERT (local_got_offsets != NULL); | |
2588 | off = local_got_offsets[r_symndx]; | |
2589 | local_got_offsets[r_symndx] |= 1; | |
2590 | } | |
26e41594 | 2591 | |
b9734f35 JJ |
2592 | r_sparc_tlsldm: |
2593 | if (htab->sgot == NULL) | |
2594 | abort (); | |
2595 | ||
2596 | if ((off & 1) != 0) | |
2597 | off &= ~1; | |
26e41594 | 2598 | else |
b9734f35 JJ |
2599 | { |
2600 | Elf_Internal_Rela outrel; | |
2601 | Elf32_External_Rela *loc; | |
2602 | int dr_type, indx; | |
2603 | ||
2604 | if (htab->srelgot == NULL) | |
2605 | abort (); | |
2606 | ||
2607 | bfd_put_32 (output_bfd, 0, htab->sgot->contents + off); | |
2608 | outrel.r_offset = (htab->sgot->output_section->vma | |
2609 | + htab->sgot->output_offset + off); | |
2610 | indx = h && h->dynindx != -1 ? h->dynindx : 0; | |
2611 | if (r_type == R_SPARC_TLS_IE_HI22 | |
2612 | || r_type == R_SPARC_TLS_IE_LO10) | |
2613 | dr_type = R_SPARC_TLS_TPOFF32; | |
2614 | else | |
2615 | dr_type = R_SPARC_TLS_DTPMOD32; | |
2616 | if (dr_type == R_SPARC_TLS_TPOFF32 && indx == 0) | |
2617 | outrel.r_addend = relocation - dtpoff_base (info); | |
2618 | else | |
2619 | outrel.r_addend = 0; | |
2620 | outrel.r_info = ELF32_R_INFO (indx, dr_type); | |
2621 | loc = (Elf32_External_Rela *) htab->srelgot->contents; | |
2622 | loc += htab->srelgot->reloc_count++; | |
2623 | bfd_elf32_swap_reloca_out (output_bfd, &outrel, | |
2624 | (bfd_byte *) loc); | |
2625 | ||
2626 | if (r_type == R_SPARC_TLS_GD_HI22 | |
2627 | || r_type == R_SPARC_TLS_GD_LO10) | |
2628 | { | |
2629 | if (indx == 0) | |
2630 | { | |
2631 | BFD_ASSERT (! unresolved_reloc); | |
2632 | bfd_put_32 (output_bfd, | |
2633 | relocation - dtpoff_base (info), | |
2634 | htab->sgot->contents + off + 4); | |
2635 | } | |
2636 | else | |
2637 | { | |
2638 | bfd_put_32 (output_bfd, 0, | |
2639 | htab->sgot->contents + off + 4); | |
2640 | outrel.r_info = ELF32_R_INFO (indx, | |
2641 | R_SPARC_TLS_DTPOFF32); | |
2642 | outrel.r_offset += 4; | |
2643 | htab->srelgot->reloc_count++; | |
2644 | loc++; | |
2645 | bfd_elf32_swap_reloca_out (output_bfd, &outrel, | |
2646 | (bfd_byte *) loc); | |
2647 | } | |
2648 | } | |
2649 | else if (dr_type == R_SPARC_TLS_DTPMOD32) | |
2650 | { | |
2651 | bfd_put_32 (output_bfd, 0, | |
2652 | htab->sgot->contents + off + 4); | |
2653 | } | |
2654 | } | |
2655 | ||
2656 | if (off >= (bfd_vma) -2) | |
2657 | abort (); | |
2658 | ||
2659 | relocation = htab->sgot->output_offset + off - got_base; | |
2660 | unresolved_reloc = FALSE; | |
2661 | howto = _bfd_sparc_elf_howto_table + r_type; | |
2662 | break; | |
2663 | ||
2664 | case R_SPARC_TLS_LDM_HI22: | |
2665 | case R_SPARC_TLS_LDM_LO10: | |
2666 | if (! info->shared) | |
2667 | { | |
2668 | bfd_put_32 (output_bfd, SPARC_NOP, contents + rel->r_offset); | |
2669 | continue; | |
2670 | } | |
2671 | off = htab->tls_ldm_got.offset; | |
2672 | htab->tls_ldm_got.offset |= 1; | |
2673 | goto r_sparc_tlsldm; | |
2674 | ||
2675 | case R_SPARC_TLS_LDO_HIX22: | |
2676 | case R_SPARC_TLS_LDO_LOX10: | |
2677 | if (info->shared) | |
2678 | relocation -= dtpoff_base (info); | |
2679 | else | |
2680 | relocation = tpoff (info, relocation); | |
2681 | break; | |
2682 | ||
2683 | case R_SPARC_TLS_LE_HIX22: | |
2684 | case R_SPARC_TLS_LE_LOX10: | |
2685 | if (info->shared) | |
2686 | { | |
2687 | Elf_Internal_Rela outrel; | |
2688 | bfd_boolean skip, relocate = FALSE; | |
2689 | ||
2690 | BFD_ASSERT (sreloc != NULL); | |
2691 | skip = FALSE; | |
2692 | outrel.r_offset = | |
2693 | _bfd_elf_section_offset (output_bfd, info, input_section, | |
2694 | rel->r_offset); | |
2695 | if (outrel.r_offset == (bfd_vma) -1) | |
2696 | skip = TRUE; | |
2697 | else if (outrel.r_offset == (bfd_vma) -2) | |
2698 | skip = TRUE, relocate = TRUE; | |
2699 | outrel.r_offset += (input_section->output_section->vma | |
2700 | + input_section->output_offset); | |
2701 | if (skip) | |
2702 | memset (&outrel, 0, sizeof outrel); | |
2703 | else | |
2704 | { | |
2705 | outrel.r_info = ELF32_R_INFO (0, r_type); | |
2706 | outrel.r_addend = relocation - dtpoff_base (info) | |
2707 | + rel->r_addend; | |
2708 | } | |
2709 | ||
2710 | bfd_elf32_swap_reloca_out (output_bfd, &outrel, | |
2711 | (bfd_byte *) (((Elf32_External_Rela *) | |
2712 | sreloc->contents) | |
2713 | + sreloc->reloc_count)); | |
2714 | ++sreloc->reloc_count; | |
2715 | continue; | |
2716 | } | |
2717 | relocation = tpoff (info, relocation); | |
2718 | break; | |
2719 | ||
2720 | case R_SPARC_TLS_LDM_CALL: | |
2721 | if (! info->shared) | |
2722 | { | |
2723 | /* mov %g0, %o0 */ | |
2724 | bfd_put_32 (output_bfd, 0x90100000, contents + rel->r_offset); | |
2725 | continue; | |
2726 | } | |
2727 | /* Fall through */ | |
2728 | ||
2729 | case R_SPARC_TLS_GD_CALL: | |
2730 | tls_type = GOT_UNKNOWN; | |
2731 | if (h == NULL && local_got_offsets) | |
2732 | tls_type = elf32_sparc_local_got_tls_type (input_bfd) [r_symndx]; | |
2733 | else if (h != NULL) | |
2734 | tls_type = elf32_sparc_hash_entry(h)->tls_type; | |
2735 | if (! info->shared | |
2736 | || (r_type == R_SPARC_TLS_GD_CALL && tls_type == GOT_TLS_IE)) | |
2737 | { | |
2738 | bfd_vma insn; | |
2739 | ||
2740 | if (!info->shared && (h == NULL || h->dynindx == -1)) | |
2741 | { | |
2742 | /* GD -> LE */ | |
2743 | bfd_put_32 (output_bfd, SPARC_NOP, contents + rel->r_offset); | |
2744 | continue; | |
2745 | } | |
2746 | ||
2747 | /* GD -> IE */ | |
2748 | if (rel + 1 < relend | |
2749 | && ELF32_R_TYPE (rel[1].r_info) == R_SPARC_TLS_GD_ADD | |
2750 | && rel[1].r_offset == rel->r_offset + 4 | |
2751 | && ELF32_R_SYM (rel[1].r_info) == r_symndx | |
2752 | && (((insn = bfd_get_32 (input_bfd, | |
2753 | contents + rel[1].r_offset)) | |
2754 | >> 25) & 0x1f) == 8) | |
2755 | { | |
2756 | /* We have | |
2757 | call __tls_get_addr, %tgd_call(foo) | |
2758 | add %reg1, %reg2, %o0, %tgd_add(foo) | |
2759 | and change it into IE: | |
2760 | ld [%reg1 + %reg2], %o0, %tie_ld(foo) | |
2761 | add %g7, %o0, %o0, %tie_add(foo). | |
2762 | add is 0x80000000 | (rd << 25) | (rs1 << 14) | rs2, | |
2763 | ld is 0xc0000000 | (rd << 25) | (rs1 << 14) | rs2. */ | |
2764 | bfd_put_32 (output_bfd, insn | 0xc0000000, | |
2765 | contents + rel->r_offset); | |
2766 | bfd_put_32 (output_bfd, 0x9001c008, | |
2767 | contents + rel->r_offset + 4); | |
2768 | rel++; | |
2769 | continue; | |
2770 | } | |
2771 | ||
2772 | bfd_put_32 (output_bfd, 0x9001c008, contents + rel->r_offset); | |
2773 | continue; | |
2774 | } | |
2775 | ||
2776 | h = (struct elf_link_hash_entry *) | |
2777 | bfd_link_hash_lookup (info->hash, "__tls_get_addr", FALSE, | |
2778 | FALSE, TRUE); | |
2779 | BFD_ASSERT (h != NULL); | |
2780 | r_type = R_SPARC_WPLT30; | |
2781 | howto = _bfd_sparc_elf_howto_table + r_type; | |
2782 | goto r_sparc_wplt30; | |
2783 | ||
2784 | case R_SPARC_TLS_GD_ADD: | |
2785 | tls_type = GOT_UNKNOWN; | |
2786 | if (h == NULL && local_got_offsets) | |
2787 | tls_type = elf32_sparc_local_got_tls_type (input_bfd) [r_symndx]; | |
2788 | else if (h != NULL) | |
2789 | tls_type = elf32_sparc_hash_entry(h)->tls_type; | |
2790 | if (! info->shared || tls_type == GOT_TLS_IE) | |
2791 | { | |
2792 | /* add %reg1, %reg2, %reg3, %tgd_add(foo) | |
2793 | changed into IE: | |
2794 | ld [%reg1 + %reg2], %reg3, %tie_ld(foo) | |
2795 | or LE: | |
2796 | add %g7, %reg2, %reg3. */ | |
2797 | bfd_vma insn = bfd_get_32 (input_bfd, contents + rel->r_offset); | |
2798 | if ((h != NULL && h->dynindx != -1) || info->shared) | |
2799 | relocation = insn | 0xc0000000; | |
2800 | else | |
2801 | relocation = (insn & ~0x7c000) | 0x1c000; | |
2802 | bfd_put_32 (output_bfd, relocation, contents + rel->r_offset); | |
2803 | } | |
2804 | continue; | |
2805 | ||
2806 | case R_SPARC_TLS_LDM_ADD: | |
2807 | if (! info->shared) | |
2808 | bfd_put_32 (output_bfd, SPARC_NOP, contents + rel->r_offset); | |
2809 | continue; | |
2810 | ||
2811 | case R_SPARC_TLS_LDO_ADD: | |
2812 | if (! info->shared) | |
2813 | { | |
2814 | /* Change rs1 into %g7. */ | |
2815 | bfd_vma insn = bfd_get_32 (input_bfd, contents + rel->r_offset); | |
2816 | insn = (insn & ~0x7c000) | 0x1c000; | |
2817 | bfd_put_32 (output_bfd, insn, contents + rel->r_offset); | |
2818 | } | |
2819 | continue; | |
2820 | ||
2821 | case R_SPARC_TLS_IE_LD: | |
2822 | case R_SPARC_TLS_IE_LDX: | |
2823 | if (! info->shared && (h == NULL || h->dynindx == -1)) | |
2824 | { | |
2825 | bfd_vma insn = bfd_get_32 (input_bfd, contents + rel->r_offset); | |
2826 | int rs2 = insn & 0x1f; | |
2827 | int rd = (insn >> 25) & 0x1f; | |
2828 | ||
2829 | if (rs2 == rd) | |
2830 | relocation = SPARC_NOP; | |
2831 | else | |
2832 | relocation = 0x80100000 | (insn & 0x3e00001f); | |
2833 | bfd_put_32 (output_bfd, relocation, contents + rel->r_offset); | |
2834 | } | |
2835 | continue; | |
2836 | ||
2837 | case R_SPARC_TLS_IE_ADD: | |
2838 | /* Totally useless relocation. */ | |
2839 | continue; | |
2840 | ||
2841 | case R_SPARC_TLS_DTPOFF32: | |
2842 | relocation -= dtpoff_base (info); | |
2843 | break; | |
2844 | ||
252b5132 RH |
2845 | default: |
2846 | break; | |
2847 | } | |
2848 | ||
239e1f3a AM |
2849 | /* Dynamic relocs are not propagated for SEC_DEBUGGING sections |
2850 | because such sections are not SEC_ALLOC and thus ld.so will | |
2851 | not process them. */ | |
e36f7d53 | 2852 | if (unresolved_reloc |
239e1f3a | 2853 | && !((input_section->flags & SEC_DEBUGGING) != 0 |
e36f7d53 RH |
2854 | && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC) != 0)) |
2855 | (*_bfd_error_handler) | |
2856 | (_("%s(%s+0x%lx): unresolvable relocation against symbol `%s'"), | |
2857 | bfd_archive_filename (input_bfd), | |
2858 | bfd_get_section_name (input_bfd, input_section), | |
2859 | (long) rel->r_offset, | |
2860 | h->root.root.string); | |
2861 | ||
f7775d95 | 2862 | r = bfd_reloc_continue; |
252b5132 RH |
2863 | if (r_type == R_SPARC_WDISP16) |
2864 | { | |
2865 | bfd_vma x; | |
2866 | ||
2867 | relocation += rel->r_addend; | |
2868 | relocation -= (input_section->output_section->vma | |
2869 | + input_section->output_offset); | |
2870 | relocation -= rel->r_offset; | |
2871 | ||
2872 | x = bfd_get_32 (input_bfd, contents + rel->r_offset); | |
2873 | x |= ((((relocation >> 2) & 0xc000) << 6) | |
2874 | | ((relocation >> 2) & 0x3fff)); | |
2875 | bfd_put_32 (input_bfd, x, contents + rel->r_offset); | |
2876 | ||
2877 | if ((bfd_signed_vma) relocation < - 0x40000 | |
2878 | || (bfd_signed_vma) relocation > 0x3ffff) | |
2879 | r = bfd_reloc_overflow; | |
2880 | else | |
2881 | r = bfd_reloc_ok; | |
2882 | } | |
2883 | else if (r_type == R_SPARC_REV32) | |
2884 | { | |
2885 | bfd_vma x; | |
2886 | ||
2887 | relocation = relocation + rel->r_addend; | |
2888 | ||
2889 | x = bfd_get_32 (input_bfd, contents + rel->r_offset); | |
2890 | x = x + relocation; | |
2891 | bfd_putl32 (/*input_bfd,*/ x, contents + rel->r_offset); | |
b9734f35 JJ |
2892 | r = bfd_reloc_ok; |
2893 | } | |
2894 | else if (r_type == R_SPARC_TLS_LDO_HIX22 | |
2895 | || r_type == R_SPARC_TLS_LE_HIX22) | |
2896 | { | |
2897 | bfd_vma x; | |
2898 | ||
2899 | relocation += rel->r_addend; | |
2900 | relocation = relocation ^ 0xffffffff; | |
2901 | ||
2902 | x = bfd_get_32 (input_bfd, contents + rel->r_offset); | |
2903 | x = (x & ~(bfd_vma) 0x3fffff) | ((relocation >> 10) & 0x3fffff); | |
2904 | bfd_put_32 (input_bfd, x, contents + rel->r_offset); | |
2905 | r = bfd_reloc_ok; | |
2906 | } | |
2907 | else if (r_type == R_SPARC_TLS_LDO_LOX10 | |
2908 | || r_type == R_SPARC_TLS_LE_LOX10) | |
2909 | { | |
2910 | bfd_vma x; | |
2911 | ||
2912 | relocation += rel->r_addend; | |
2913 | relocation = (relocation & 0x3ff) | 0x1c00; | |
2914 | ||
2915 | x = bfd_get_32 (input_bfd, contents + rel->r_offset); | |
2916 | x = (x & ~(bfd_vma) 0x1fff) | relocation; | |
2917 | bfd_put_32 (input_bfd, x, contents + rel->r_offset); | |
2918 | ||
252b5132 RH |
2919 | r = bfd_reloc_ok; |
2920 | } | |
f7775d95 | 2921 | else if ((r_type == R_SPARC_WDISP30 || r_type == R_SPARC_WPLT30) |
f0abc2a1 | 2922 | && sec_do_relax (input_section) |
eea6121a | 2923 | && rel->r_offset + 4 < input_section->size) |
f7775d95 JJ |
2924 | { |
2925 | #define G0 0 | |
2926 | #define O7 15 | |
2927 | #define XCC (2 << 20) | |
2928 | #define COND(x) (((x)&0xf)<<25) | |
2929 | #define CONDA COND(0x8) | |
2930 | #define INSN_BPA (F2(0,1) | CONDA | BPRED | XCC) | |
2931 | #define INSN_BA (F2(0,2) | CONDA) | |
2932 | #define INSN_OR F3(2, 0x2, 0) | |
2933 | #define INSN_NOP F2(0,4) | |
2934 | ||
2935 | bfd_vma x, y; | |
2936 | ||
2937 | /* If the instruction is a call with either: | |
2938 | restore | |
2939 | arithmetic instruction with rd == %o7 | |
2940 | where rs1 != %o7 and rs2 if it is register != %o7 | |
2941 | then we can optimize if the call destination is near | |
2942 | by changing the call into a branch always. */ | |
2943 | x = bfd_get_32 (input_bfd, contents + rel->r_offset); | |
2944 | y = bfd_get_32 (input_bfd, contents + rel->r_offset + 4); | |
2945 | if ((x & OP(~0)) == OP(1) && (y & OP(~0)) == OP(2)) | |
2946 | { | |
2947 | if (((y & OP3(~0)) == OP3(0x3d) /* restore */ | |
2948 | || ((y & OP3(0x28)) == 0 /* arithmetic */ | |
2949 | && (y & RD(~0)) == RD(O7))) | |
2950 | && (y & RS1(~0)) != RS1(O7) | |
2951 | && ((y & F3I(~0)) | |
2952 | || (y & RS2(~0)) != RS2(O7))) | |
2953 | { | |
2954 | bfd_vma reloc; | |
2955 | ||
2956 | reloc = relocation + rel->r_addend - rel->r_offset; | |
2957 | reloc -= (input_section->output_section->vma | |
2958 | + input_section->output_offset); | |
2959 | ||
2960 | /* Ensure the reloc fits into simm22. */ | |
2961 | if ((reloc & 3) == 0 | |
2962 | && ((reloc & ~(bfd_vma)0x7fffff) == 0 | |
2963 | || ((reloc | 0x7fffff) == ~(bfd_vma)0))) | |
2964 | { | |
2965 | reloc >>= 2; | |
435b1e90 | 2966 | |
f7775d95 JJ |
2967 | /* Check whether it fits into simm19 on v9. */ |
2968 | if (((reloc & 0x3c0000) == 0 | |
2969 | || (reloc & 0x3c0000) == 0x3c0000) | |
2970 | && (elf_elfheader (output_bfd)->e_flags & EF_SPARC_32PLUS)) | |
2971 | x = INSN_BPA | (reloc & 0x7ffff); /* ba,pt %xcc */ | |
2972 | else | |
2973 | x = INSN_BA | (reloc & 0x3fffff); /* ba */ | |
2974 | bfd_put_32 (input_bfd, x, contents + rel->r_offset); | |
2975 | r = bfd_reloc_ok; | |
2976 | if (rel->r_offset >= 4 | |
2977 | && (y & (0xffffffff ^ RS1(~0))) | |
2978 | == (INSN_OR | RD(O7) | RS2(G0))) | |
2979 | { | |
2980 | bfd_vma z; | |
2981 | unsigned int reg; | |
2982 | ||
2983 | z = bfd_get_32 (input_bfd, | |
2984 | contents + rel->r_offset - 4); | |
2985 | if ((z & (0xffffffff ^ RD(~0))) | |
2986 | != (INSN_OR | RS1(O7) | RS2(G0))) | |
2987 | break; | |
2988 | ||
2989 | /* The sequence was | |
2990 | or %o7, %g0, %rN | |
2991 | call foo | |
2992 | or %rN, %g0, %o7 | |
2993 | ||
2994 | If call foo was replaced with ba, replace | |
2995 | or %rN, %g0, %o7 with nop. */ | |
2996 | ||
2997 | reg = (y & RS1(~0)) >> 14; | |
2998 | if (reg != ((z & RD(~0)) >> 25) | |
2999 | || reg == G0 || reg == O7) | |
3000 | break; | |
3001 | ||
dc810e39 | 3002 | bfd_put_32 (input_bfd, (bfd_vma) INSN_NOP, |
f7775d95 JJ |
3003 | contents + rel->r_offset + 4); |
3004 | } | |
3005 | ||
3006 | } | |
3007 | } | |
3008 | } | |
3009 | } | |
3010 | ||
3011 | if (r == bfd_reloc_continue) | |
252b5132 RH |
3012 | r = _bfd_final_link_relocate (howto, input_bfd, input_section, |
3013 | contents, rel->r_offset, | |
3014 | relocation, rel->r_addend); | |
3015 | ||
252b5132 RH |
3016 | if (r != bfd_reloc_ok) |
3017 | { | |
3018 | switch (r) | |
3019 | { | |
3020 | default: | |
3021 | case bfd_reloc_outofrange: | |
3022 | abort (); | |
3023 | case bfd_reloc_overflow: | |
3024 | { | |
3025 | const char *name; | |
3026 | ||
3027 | if (h != NULL) | |
3028 | name = h->root.root.string; | |
3029 | else | |
3030 | { | |
3031 | name = bfd_elf_string_from_elf_section (input_bfd, | |
3032 | symtab_hdr->sh_link, | |
3033 | sym->st_name); | |
3034 | if (name == NULL) | |
b34976b6 | 3035 | return FALSE; |
252b5132 RH |
3036 | if (*name == '\0') |
3037 | name = bfd_section_name (input_bfd, sec); | |
3038 | } | |
3039 | if (! ((*info->callbacks->reloc_overflow) | |
3040 | (info, name, howto->name, (bfd_vma) 0, | |
3041 | input_bfd, input_section, rel->r_offset))) | |
b34976b6 | 3042 | return FALSE; |
252b5132 RH |
3043 | } |
3044 | break; | |
3045 | } | |
3046 | } | |
3047 | } | |
3048 | ||
b34976b6 | 3049 | return TRUE; |
252b5132 RH |
3050 | } |
3051 | ||
3052 | /* Finish up dynamic symbol handling. We set the contents of various | |
3053 | dynamic sections here. */ | |
3054 | ||
b34976b6 | 3055 | static bfd_boolean |
252b5132 RH |
3056 | elf32_sparc_finish_dynamic_symbol (output_bfd, info, h, sym) |
3057 | bfd *output_bfd; | |
3058 | struct bfd_link_info *info; | |
3059 | struct elf_link_hash_entry *h; | |
3060 | Elf_Internal_Sym *sym; | |
3061 | { | |
3062 | bfd *dynobj; | |
b9734f35 | 3063 | struct elf32_sparc_link_hash_table *htab; |
26e41594 | 3064 | |
b9734f35 JJ |
3065 | htab = elf32_sparc_hash_table (info); |
3066 | dynobj = htab->elf.dynobj; | |
252b5132 RH |
3067 | |
3068 | if (h->plt.offset != (bfd_vma) -1) | |
3069 | { | |
3070 | asection *splt; | |
3071 | asection *srela; | |
3072 | Elf_Internal_Rela rela; | |
b34976b6 | 3073 | bfd_byte *loc; |
252b5132 RH |
3074 | |
3075 | /* This symbol has an entry in the procedure linkage table. Set | |
26e41594 | 3076 | it up. */ |
252b5132 RH |
3077 | |
3078 | BFD_ASSERT (h->dynindx != -1); | |
3079 | ||
b9734f35 JJ |
3080 | splt = htab->splt; |
3081 | srela = htab->srelplt; | |
252b5132 RH |
3082 | BFD_ASSERT (splt != NULL && srela != NULL); |
3083 | ||
3084 | /* Fill in the entry in the procedure linkage table. */ | |
3085 | bfd_put_32 (output_bfd, | |
3086 | PLT_ENTRY_WORD0 + h->plt.offset, | |
3087 | splt->contents + h->plt.offset); | |
3088 | bfd_put_32 (output_bfd, | |
3089 | (PLT_ENTRY_WORD1 | |
3090 | + (((- (h->plt.offset + 4)) >> 2) & 0x3fffff)), | |
3091 | splt->contents + h->plt.offset + 4); | |
dc810e39 | 3092 | bfd_put_32 (output_bfd, (bfd_vma) PLT_ENTRY_WORD2, |
252b5132 RH |
3093 | splt->contents + h->plt.offset + 8); |
3094 | ||
3095 | /* Fill in the entry in the .rela.plt section. */ | |
3096 | rela.r_offset = (splt->output_section->vma | |
3097 | + splt->output_offset | |
3098 | + h->plt.offset); | |
3099 | rela.r_info = ELF32_R_INFO (h->dynindx, R_SPARC_JMP_SLOT); | |
3100 | rela.r_addend = 0; | |
b34976b6 AM |
3101 | loc = srela->contents; |
3102 | loc += (h->plt.offset / PLT_ENTRY_SIZE - 4) * sizeof (Elf32_External_Rela); | |
3103 | bfd_elf32_swap_reloca_out (output_bfd, &rela, loc); | |
252b5132 RH |
3104 | |
3105 | if ((h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0) | |
3106 | { | |
3107 | /* Mark the symbol as undefined, rather than as defined in | |
3108 | the .plt section. Leave the value alone. */ | |
3109 | sym->st_shndx = SHN_UNDEF; | |
8701c1bc JJ |
3110 | /* If the symbol is weak, we do need to clear the value. |
3111 | Otherwise, the PLT entry would provide a definition for | |
3112 | the symbol even if the symbol wasn't defined anywhere, | |
3113 | and so the symbol would never be NULL. */ | |
3114 | if ((h->elf_link_hash_flags & ELF_LINK_HASH_REF_REGULAR_NONWEAK) | |
3115 | == 0) | |
3116 | sym->st_value = 0; | |
252b5132 RH |
3117 | } |
3118 | } | |
3119 | ||
b9734f35 JJ |
3120 | if (h->got.offset != (bfd_vma) -1 |
3121 | && elf32_sparc_hash_entry(h)->tls_type != GOT_TLS_GD | |
3122 | && elf32_sparc_hash_entry(h)->tls_type != GOT_TLS_IE) | |
252b5132 RH |
3123 | { |
3124 | asection *sgot; | |
3125 | asection *srela; | |
3126 | Elf_Internal_Rela rela; | |
b34976b6 | 3127 | bfd_byte *loc; |
252b5132 RH |
3128 | |
3129 | /* This symbol has an entry in the global offset table. Set it | |
26e41594 | 3130 | up. */ |
252b5132 | 3131 | |
b9734f35 JJ |
3132 | sgot = htab->sgot; |
3133 | srela = htab->srelgot; | |
252b5132 RH |
3134 | BFD_ASSERT (sgot != NULL && srela != NULL); |
3135 | ||
3136 | rela.r_offset = (sgot->output_section->vma | |
3137 | + sgot->output_offset | |
dc810e39 | 3138 | + (h->got.offset &~ (bfd_vma) 1)); |
252b5132 RH |
3139 | |
3140 | /* If this is a -Bsymbolic link, and the symbol is defined | |
3141 | locally, we just want to emit a RELATIVE reloc. Likewise if | |
3142 | the symbol was forced to be local because of a version file. | |
3143 | The entry in the global offset table will already have been | |
3144 | initialized in the relocate_section function. */ | |
3145 | if (info->shared | |
3146 | && (info->symbolic || h->dynindx == -1) | |
3147 | && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR)) | |
6b3ac709 JJ |
3148 | { |
3149 | asection *sec = h->root.u.def.section; | |
3150 | rela.r_info = ELF32_R_INFO (0, R_SPARC_RELATIVE); | |
3151 | rela.r_addend = (h->root.u.def.value | |
3152 | + sec->output_section->vma | |
3153 | + sec->output_offset); | |
3154 | } | |
252b5132 RH |
3155 | else |
3156 | { | |
252b5132 | 3157 | rela.r_info = ELF32_R_INFO (h->dynindx, R_SPARC_GLOB_DAT); |
6b3ac709 | 3158 | rela.r_addend = 0; |
252b5132 RH |
3159 | } |
3160 | ||
6b3ac709 JJ |
3161 | bfd_put_32 (output_bfd, (bfd_vma) 0, |
3162 | sgot->contents + (h->got.offset &~ (bfd_vma) 1)); | |
b34976b6 AM |
3163 | loc = srela->contents; |
3164 | loc += srela->reloc_count++ * sizeof (Elf32_External_Rela); | |
3165 | bfd_elf32_swap_reloca_out (output_bfd, &rela, loc); | |
252b5132 RH |
3166 | } |
3167 | ||
3168 | if ((h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_COPY) != 0) | |
3169 | { | |
3170 | asection *s; | |
3171 | Elf_Internal_Rela rela; | |
b34976b6 | 3172 | bfd_byte *loc; |
252b5132 RH |
3173 | |
3174 | /* This symbols needs a copy reloc. Set it up. */ | |
3175 | ||
3176 | BFD_ASSERT (h->dynindx != -1); | |
3177 | ||
3178 | s = bfd_get_section_by_name (h->root.u.def.section->owner, | |
3179 | ".rela.bss"); | |
3180 | BFD_ASSERT (s != NULL); | |
3181 | ||
3182 | rela.r_offset = (h->root.u.def.value | |
3183 | + h->root.u.def.section->output_section->vma | |
3184 | + h->root.u.def.section->output_offset); | |
3185 | rela.r_info = ELF32_R_INFO (h->dynindx, R_SPARC_COPY); | |
3186 | rela.r_addend = 0; | |
b34976b6 AM |
3187 | loc = s->contents + s->reloc_count++ * sizeof (Elf32_External_Rela); |
3188 | bfd_elf32_swap_reloca_out (output_bfd, &rela, loc); | |
252b5132 RH |
3189 | } |
3190 | ||
3191 | /* Mark some specially defined symbols as absolute. */ | |
3192 | if (strcmp (h->root.root.string, "_DYNAMIC") == 0 | |
3193 | || strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0 | |
3194 | || strcmp (h->root.root.string, "_PROCEDURE_LINKAGE_TABLE_") == 0) | |
3195 | sym->st_shndx = SHN_ABS; | |
3196 | ||
b34976b6 | 3197 | return TRUE; |
252b5132 RH |
3198 | } |
3199 | ||
3200 | /* Finish up the dynamic sections. */ | |
3201 | ||
b34976b6 | 3202 | static bfd_boolean |
252b5132 RH |
3203 | elf32_sparc_finish_dynamic_sections (output_bfd, info) |
3204 | bfd *output_bfd; | |
3205 | struct bfd_link_info *info; | |
3206 | { | |
3207 | bfd *dynobj; | |
3208 | asection *sdyn; | |
b9734f35 | 3209 | struct elf32_sparc_link_hash_table *htab; |
26e41594 | 3210 | |
b9734f35 JJ |
3211 | htab = elf32_sparc_hash_table (info); |
3212 | dynobj = htab->elf.dynobj; | |
252b5132 RH |
3213 | |
3214 | sdyn = bfd_get_section_by_name (dynobj, ".dynamic"); | |
3215 | ||
3216 | if (elf_hash_table (info)->dynamic_sections_created) | |
3217 | { | |
3218 | asection *splt; | |
3219 | Elf32_External_Dyn *dyncon, *dynconend; | |
3220 | ||
3221 | splt = bfd_get_section_by_name (dynobj, ".plt"); | |
3222 | BFD_ASSERT (splt != NULL && sdyn != NULL); | |
3223 | ||
3224 | dyncon = (Elf32_External_Dyn *) sdyn->contents; | |
eea6121a | 3225 | dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size); |
252b5132 RH |
3226 | for (; dyncon < dynconend; dyncon++) |
3227 | { | |
3228 | Elf_Internal_Dyn dyn; | |
3229 | const char *name; | |
b34976b6 | 3230 | bfd_boolean size; |
252b5132 RH |
3231 | |
3232 | bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn); | |
3233 | ||
3234 | switch (dyn.d_tag) | |
3235 | { | |
b34976b6 AM |
3236 | case DT_PLTGOT: name = ".plt"; size = FALSE; break; |
3237 | case DT_PLTRELSZ: name = ".rela.plt"; size = TRUE; break; | |
3238 | case DT_JMPREL: name = ".rela.plt"; size = FALSE; break; | |
3239 | default: name = NULL; size = FALSE; break; | |
252b5132 RH |
3240 | } |
3241 | ||
3242 | if (name != NULL) | |
3243 | { | |
3244 | asection *s; | |
3245 | ||
3246 | s = bfd_get_section_by_name (output_bfd, name); | |
3247 | if (s == NULL) | |
3248 | dyn.d_un.d_val = 0; | |
3249 | else | |
3250 | { | |
3251 | if (! size) | |
3252 | dyn.d_un.d_ptr = s->vma; | |
3253 | else | |
eea6121a | 3254 | dyn.d_un.d_val = s->size; |
252b5132 RH |
3255 | } |
3256 | bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon); | |
3257 | } | |
3258 | } | |
3259 | ||
3260 | /* Clear the first four entries in the procedure linkage table, | |
3261 | and put a nop in the last four bytes. */ | |
eea6121a | 3262 | if (splt->size > 0) |
252b5132 RH |
3263 | { |
3264 | memset (splt->contents, 0, 4 * PLT_ENTRY_SIZE); | |
dc810e39 | 3265 | bfd_put_32 (output_bfd, (bfd_vma) SPARC_NOP, |
eea6121a | 3266 | splt->contents + splt->size - 4); |
252b5132 RH |
3267 | } |
3268 | ||
a8a6d7ce | 3269 | elf_section_data (splt->output_section)->this_hdr.sh_entsize = 0; |
252b5132 RH |
3270 | } |
3271 | ||
3272 | /* Set the first entry in the global offset table to the address of | |
3273 | the dynamic section. */ | |
eea6121a | 3274 | if (htab->sgot && htab->sgot->size > 0) |
252b5132 RH |
3275 | { |
3276 | if (sdyn == NULL) | |
b9734f35 | 3277 | bfd_put_32 (output_bfd, (bfd_vma) 0, htab->sgot->contents); |
252b5132 RH |
3278 | else |
3279 | bfd_put_32 (output_bfd, | |
3280 | sdyn->output_section->vma + sdyn->output_offset, | |
b9734f35 | 3281 | htab->sgot->contents); |
252b5132 RH |
3282 | } |
3283 | ||
b9734f35 JJ |
3284 | if (htab->sgot) |
3285 | elf_section_data (htab->sgot->output_section)->this_hdr.sh_entsize = 4; | |
252b5132 | 3286 | |
b34976b6 | 3287 | return TRUE; |
252b5132 RH |
3288 | } |
3289 | \f | |
3290 | /* Functions for dealing with the e_flags field. | |
3291 | ||
3292 | We don't define set_private_flags or copy_private_bfd_data because | |
3293 | the only currently defined values are based on the bfd mach number, | |
3294 | so we use the latter instead and defer setting e_flags until the | |
3295 | file is written out. */ | |
3296 | ||
3297 | /* Merge backend specific data from an object file to the output | |
3298 | object file when linking. */ | |
3299 | ||
b34976b6 | 3300 | static bfd_boolean |
252b5132 RH |
3301 | elf32_sparc_merge_private_bfd_data (ibfd, obfd) |
3302 | bfd *ibfd; | |
3303 | bfd *obfd; | |
3304 | { | |
b34976b6 | 3305 | bfd_boolean error; |
7946e94a | 3306 | unsigned long ibfd_mach; |
5f771d47 ILT |
3307 | /* FIXME: This should not be static. */ |
3308 | static unsigned long previous_ibfd_e_flags = (unsigned long) -1; | |
252b5132 RH |
3309 | |
3310 | if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour | |
3311 | || bfd_get_flavour (obfd) != bfd_target_elf_flavour) | |
b34976b6 | 3312 | return TRUE; |
252b5132 | 3313 | |
b34976b6 | 3314 | error = FALSE; |
252b5132 | 3315 | |
7946e94a JJ |
3316 | ibfd_mach = bfd_get_mach (ibfd); |
3317 | if (bfd_mach_sparc_64bit_p (ibfd_mach)) | |
252b5132 | 3318 | { |
b34976b6 | 3319 | error = TRUE; |
252b5132 RH |
3320 | (*_bfd_error_handler) |
3321 | (_("%s: compiled for a 64 bit system and target is 32 bit"), | |
8f615d07 | 3322 | bfd_archive_filename (ibfd)); |
252b5132 | 3323 | } |
37fb6db1 ILT |
3324 | else if ((ibfd->flags & DYNAMIC) == 0) |
3325 | { | |
7946e94a JJ |
3326 | if (bfd_get_mach (obfd) < ibfd_mach) |
3327 | bfd_set_arch_mach (obfd, bfd_arch_sparc, ibfd_mach); | |
37fb6db1 | 3328 | } |
252b5132 RH |
3329 | |
3330 | if (((elf_elfheader (ibfd)->e_flags & EF_SPARC_LEDATA) | |
3331 | != previous_ibfd_e_flags) | |
5f771d47 | 3332 | && previous_ibfd_e_flags != (unsigned long) -1) |
252b5132 RH |
3333 | { |
3334 | (*_bfd_error_handler) | |
3335 | (_("%s: linking little endian files with big endian files"), | |
8f615d07 | 3336 | bfd_archive_filename (ibfd)); |
b34976b6 | 3337 | error = TRUE; |
252b5132 RH |
3338 | } |
3339 | previous_ibfd_e_flags = elf_elfheader (ibfd)->e_flags & EF_SPARC_LEDATA; | |
3340 | ||
3341 | if (error) | |
3342 | { | |
3343 | bfd_set_error (bfd_error_bad_value); | |
b34976b6 | 3344 | return FALSE; |
252b5132 RH |
3345 | } |
3346 | ||
b34976b6 | 3347 | return TRUE; |
252b5132 RH |
3348 | } |
3349 | \f | |
3350 | /* Set the right machine number. */ | |
3351 | ||
b34976b6 | 3352 | static bfd_boolean |
252b5132 RH |
3353 | elf32_sparc_object_p (abfd) |
3354 | bfd *abfd; | |
3355 | { | |
3356 | if (elf_elfheader (abfd)->e_machine == EM_SPARC32PLUS) | |
3357 | { | |
19f7b010 JJ |
3358 | if (elf_elfheader (abfd)->e_flags & EF_SPARC_SUN_US3) |
3359 | return bfd_default_set_arch_mach (abfd, bfd_arch_sparc, | |
3360 | bfd_mach_sparc_v8plusb); | |
3361 | else if (elf_elfheader (abfd)->e_flags & EF_SPARC_SUN_US1) | |
252b5132 RH |
3362 | return bfd_default_set_arch_mach (abfd, bfd_arch_sparc, |
3363 | bfd_mach_sparc_v8plusa); | |
3364 | else if (elf_elfheader (abfd)->e_flags & EF_SPARC_32PLUS) | |
3365 | return bfd_default_set_arch_mach (abfd, bfd_arch_sparc, | |
3366 | bfd_mach_sparc_v8plus); | |
3367 | else | |
b34976b6 | 3368 | return FALSE; |
252b5132 RH |
3369 | } |
3370 | else if (elf_elfheader (abfd)->e_flags & EF_SPARC_LEDATA) | |
3371 | return bfd_default_set_arch_mach (abfd, bfd_arch_sparc, | |
20278fa3 | 3372 | bfd_mach_sparc_sparclite_le); |
252b5132 RH |
3373 | else |
3374 | return bfd_default_set_arch_mach (abfd, bfd_arch_sparc, bfd_mach_sparc); | |
3375 | } | |
3376 | ||
3377 | /* The final processing done just before writing out the object file. | |
3378 | We need to set the e_machine field appropriately. */ | |
3379 | ||
3380 | static void | |
3381 | elf32_sparc_final_write_processing (abfd, linker) | |
3382 | bfd *abfd; | |
b34976b6 | 3383 | bfd_boolean linker ATTRIBUTE_UNUSED; |
252b5132 RH |
3384 | { |
3385 | switch (bfd_get_mach (abfd)) | |
3386 | { | |
3387 | case bfd_mach_sparc : | |
3388 | break; /* nothing to do */ | |
3389 | case bfd_mach_sparc_v8plus : | |
3390 | elf_elfheader (abfd)->e_machine = EM_SPARC32PLUS; | |
3391 | elf_elfheader (abfd)->e_flags &=~ EF_SPARC_32PLUS_MASK; | |
3392 | elf_elfheader (abfd)->e_flags |= EF_SPARC_32PLUS; | |
3393 | break; | |
3394 | case bfd_mach_sparc_v8plusa : | |
3395 | elf_elfheader (abfd)->e_machine = EM_SPARC32PLUS; | |
3396 | elf_elfheader (abfd)->e_flags &=~ EF_SPARC_32PLUS_MASK; | |
3397 | elf_elfheader (abfd)->e_flags |= EF_SPARC_32PLUS | EF_SPARC_SUN_US1; | |
3398 | break; | |
19f7b010 JJ |
3399 | case bfd_mach_sparc_v8plusb : |
3400 | elf_elfheader (abfd)->e_machine = EM_SPARC32PLUS; | |
3401 | elf_elfheader (abfd)->e_flags &=~ EF_SPARC_32PLUS_MASK; | |
3402 | elf_elfheader (abfd)->e_flags |= EF_SPARC_32PLUS | EF_SPARC_SUN_US1 | |
3403 | | EF_SPARC_SUN_US3; | |
3404 | break; | |
252b5132 RH |
3405 | case bfd_mach_sparc_sparclite_le : |
3406 | elf_elfheader (abfd)->e_machine = EM_SPARC; | |
3407 | elf_elfheader (abfd)->e_flags |= EF_SPARC_LEDATA; | |
3408 | break; | |
3409 | default : | |
3410 | abort (); | |
3411 | break; | |
3412 | } | |
3413 | } | |
db6751f2 JJ |
3414 | |
3415 | static enum elf_reloc_type_class | |
f51e552e AM |
3416 | elf32_sparc_reloc_type_class (rela) |
3417 | const Elf_Internal_Rela *rela; | |
db6751f2 | 3418 | { |
f51e552e | 3419 | switch ((int) ELF32_R_TYPE (rela->r_info)) |
db6751f2 JJ |
3420 | { |
3421 | case R_SPARC_RELATIVE: | |
3422 | return reloc_class_relative; | |
3423 | case R_SPARC_JMP_SLOT: | |
3424 | return reloc_class_plt; | |
3425 | case R_SPARC_COPY: | |
3426 | return reloc_class_copy; | |
3427 | default: | |
3428 | return reloc_class_normal; | |
3429 | } | |
3430 | } | |
4c45e5c9 JJ |
3431 | |
3432 | /* Return address for Ith PLT stub in section PLT, for relocation REL | |
3433 | or (bfd_vma) -1 if it should not be included. */ | |
3434 | ||
3435 | static bfd_vma | |
3436 | elf32_sparc_plt_sym_val (bfd_vma i ATTRIBUTE_UNUSED, | |
3437 | const asection *plt ATTRIBUTE_UNUSED, | |
3438 | const arelent *rel) | |
3439 | { | |
3440 | return rel->address; | |
3441 | } | |
252b5132 RH |
3442 | \f |
3443 | #define TARGET_BIG_SYM bfd_elf32_sparc_vec | |
3444 | #define TARGET_BIG_NAME "elf32-sparc" | |
3445 | #define ELF_ARCH bfd_arch_sparc | |
3446 | #define ELF_MACHINE_CODE EM_SPARC | |
3447 | #define ELF_MACHINE_ALT1 EM_SPARC32PLUS | |
3448 | #define ELF_MAXPAGESIZE 0x10000 | |
3449 | ||
3450 | #define bfd_elf32_bfd_reloc_type_lookup elf32_sparc_reloc_type_lookup | |
b9734f35 JJ |
3451 | #define bfd_elf32_bfd_link_hash_table_create \ |
3452 | elf32_sparc_link_hash_table_create | |
f7775d95 | 3453 | #define bfd_elf32_bfd_relax_section elf32_sparc_relax_section |
71e5db1c | 3454 | #define bfd_elf32_new_section_hook elf32_sparc_new_section_hook |
252b5132 | 3455 | #define elf_info_to_howto elf32_sparc_info_to_howto |
b9734f35 JJ |
3456 | #define elf_backend_copy_indirect_symbol \ |
3457 | elf32_sparc_copy_indirect_symbol | |
252b5132 | 3458 | #define elf_backend_create_dynamic_sections \ |
b9734f35 | 3459 | elf32_sparc_create_dynamic_sections |
252b5132 RH |
3460 | #define elf_backend_check_relocs elf32_sparc_check_relocs |
3461 | #define elf_backend_adjust_dynamic_symbol \ | |
3462 | elf32_sparc_adjust_dynamic_symbol | |
3463 | #define elf_backend_size_dynamic_sections \ | |
3464 | elf32_sparc_size_dynamic_sections | |
3465 | #define elf_backend_relocate_section elf32_sparc_relocate_section | |
3466 | #define elf_backend_finish_dynamic_symbol \ | |
3467 | elf32_sparc_finish_dynamic_symbol | |
3468 | #define elf_backend_finish_dynamic_sections \ | |
3469 | elf32_sparc_finish_dynamic_sections | |
3470 | #define bfd_elf32_bfd_merge_private_bfd_data \ | |
3471 | elf32_sparc_merge_private_bfd_data | |
b9734f35 | 3472 | #define bfd_elf32_mkobject elf32_sparc_mkobject |
252b5132 RH |
3473 | #define elf_backend_object_p elf32_sparc_object_p |
3474 | #define elf_backend_final_write_processing \ | |
3475 | elf32_sparc_final_write_processing | |
26e41594 | 3476 | #define elf_backend_gc_mark_hook elf32_sparc_gc_mark_hook |
252b5132 | 3477 | #define elf_backend_gc_sweep_hook elf32_sparc_gc_sweep_hook |
0647ed71 | 3478 | #define elf_backend_grok_psinfo elf32_sparc_grok_psinfo |
db6751f2 | 3479 | #define elf_backend_reloc_type_class elf32_sparc_reloc_type_class |
4c45e5c9 | 3480 | #define elf_backend_plt_sym_val elf32_sparc_plt_sym_val |
252b5132 RH |
3481 | |
3482 | #define elf_backend_can_gc_sections 1 | |
b9734f35 | 3483 | #define elf_backend_can_refcount 1 |
252b5132 RH |
3484 | #define elf_backend_want_got_plt 0 |
3485 | #define elf_backend_plt_readonly 0 | |
3486 | #define elf_backend_want_plt_sym 1 | |
3487 | #define elf_backend_got_header_size 4 | |
f0fe0e16 | 3488 | #define elf_backend_rela_normal 1 |
252b5132 RH |
3489 | |
3490 | #include "elf32-target.h" |