Commit | Line | Data |
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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; | |
eea6121a | 377 | bfd_size_type sz; |
252b5132 RH |
378 | |
379 | if (output_bfd != (bfd *) NULL | |
380 | && (symbol->flags & BSF_SECTION_SYM) == 0 | |
381 | && (! reloc_entry->howto->partial_inplace | |
382 | || reloc_entry->addend == 0)) | |
383 | { | |
384 | reloc_entry->address += input_section->output_offset; | |
385 | return bfd_reloc_ok; | |
386 | } | |
387 | ||
388 | if (output_bfd != NULL) | |
389 | return bfd_reloc_continue; | |
390 | ||
eea6121a AM |
391 | sz = input_section->rawsize ? input_section->rawsize : input_section->size; |
392 | if (reloc_entry->address > sz) | |
252b5132 RH |
393 | return bfd_reloc_outofrange; |
394 | ||
395 | relocation = (symbol->value | |
396 | + symbol->section->output_section->vma | |
397 | + symbol->section->output_offset); | |
398 | relocation += reloc_entry->addend; | |
399 | relocation -= (input_section->output_section->vma | |
400 | + input_section->output_offset); | |
401 | relocation -= reloc_entry->address; | |
402 | ||
403 | x = bfd_get_32 (abfd, (bfd_byte *) data + reloc_entry->address); | |
404 | x |= ((((relocation >> 2) & 0xc000) << 6) | |
405 | | ((relocation >> 2) & 0x3fff)); | |
406 | bfd_put_32 (abfd, x, (bfd_byte *) data + reloc_entry->address); | |
407 | ||
408 | if ((bfd_signed_vma) relocation < - 0x40000 | |
409 | || (bfd_signed_vma) relocation > 0x3ffff) | |
410 | return bfd_reloc_overflow; | |
411 | else | |
412 | return bfd_reloc_ok; | |
413 | } | |
b9734f35 JJ |
414 | |
415 | /* Handle the HIX22 reloc. */ | |
416 | ||
417 | static bfd_reloc_status_type | |
418 | sparc_elf_hix22_reloc (abfd, | |
419 | reloc_entry, | |
420 | symbol, | |
421 | data, | |
422 | input_section, | |
423 | output_bfd, | |
424 | error_message) | |
425 | bfd *abfd; | |
426 | arelent *reloc_entry; | |
427 | asymbol *symbol; | |
428 | PTR data; | |
429 | asection *input_section; | |
430 | bfd *output_bfd; | |
431 | char **error_message ATTRIBUTE_UNUSED; | |
432 | { | |
433 | bfd_vma relocation; | |
434 | bfd_vma insn; | |
eea6121a | 435 | bfd_size_type sz; |
b9734f35 JJ |
436 | |
437 | if (output_bfd != (bfd *) NULL | |
438 | && (symbol->flags & BSF_SECTION_SYM) == 0) | |
439 | { | |
440 | reloc_entry->address += input_section->output_offset; | |
441 | return bfd_reloc_ok; | |
442 | } | |
443 | ||
444 | if (output_bfd != NULL) | |
445 | return bfd_reloc_continue; | |
446 | ||
eea6121a AM |
447 | sz = input_section->rawsize ? input_section->rawsize : input_section->size; |
448 | if (reloc_entry->address > sz) | |
b9734f35 JJ |
449 | return bfd_reloc_outofrange; |
450 | ||
451 | relocation = (symbol->value | |
452 | + symbol->section->output_section->vma | |
453 | + symbol->section->output_offset); | |
454 | relocation += reloc_entry->addend; | |
455 | insn = bfd_get_32 (abfd, (bfd_byte *) data + reloc_entry->address); | |
456 | ||
457 | insn = (insn &~ (bfd_vma) 0x3fffff) | (((~relocation) >> 10) & 0x3fffff); | |
458 | bfd_put_32 (abfd, insn, (bfd_byte *) data + reloc_entry->address); | |
459 | ||
460 | return bfd_reloc_ok; | |
461 | } | |
462 | ||
463 | /* Handle the LOX10 reloc. */ | |
464 | ||
465 | static bfd_reloc_status_type | |
466 | sparc_elf_lox10_reloc (abfd, | |
467 | reloc_entry, | |
468 | symbol, | |
469 | data, | |
470 | input_section, | |
471 | output_bfd, | |
472 | error_message) | |
473 | bfd *abfd; | |
474 | arelent *reloc_entry; | |
475 | asymbol *symbol; | |
476 | PTR data; | |
477 | asection *input_section; | |
478 | bfd *output_bfd; | |
479 | char **error_message ATTRIBUTE_UNUSED; | |
480 | { | |
481 | bfd_vma relocation; | |
482 | bfd_vma insn; | |
eea6121a | 483 | bfd_size_type sz; |
b9734f35 JJ |
484 | |
485 | if (output_bfd != (bfd *) NULL | |
486 | && (symbol->flags & BSF_SECTION_SYM) == 0) | |
487 | { | |
488 | reloc_entry->address += input_section->output_offset; | |
489 | return bfd_reloc_ok; | |
490 | } | |
491 | ||
492 | if (output_bfd != NULL) | |
493 | return bfd_reloc_continue; | |
494 | ||
eea6121a AM |
495 | sz = input_section->rawsize ? input_section->rawsize : input_section->size; |
496 | if (reloc_entry->address > sz) | |
b9734f35 JJ |
497 | return bfd_reloc_outofrange; |
498 | ||
499 | relocation = (symbol->value | |
500 | + symbol->section->output_section->vma | |
501 | + symbol->section->output_offset); | |
502 | relocation += reloc_entry->addend; | |
503 | insn = bfd_get_32 (abfd, (bfd_byte *) data + reloc_entry->address); | |
504 | ||
505 | insn = (insn &~ (bfd_vma) 0x1fff) | 0x1c00 | (relocation & 0x3ff); | |
506 | bfd_put_32 (abfd, insn, (bfd_byte *) data + reloc_entry->address); | |
507 | ||
508 | return bfd_reloc_ok; | |
509 | } | |
0647ed71 MK |
510 | \f |
511 | /* Support for core dump NOTE sections. */ | |
512 | ||
513 | static bfd_boolean | |
514 | elf32_sparc_grok_psinfo (bfd *abfd, Elf_Internal_Note *note) | |
515 | { | |
516 | switch (note->descsz) | |
517 | { | |
518 | default: | |
519 | return FALSE; | |
520 | ||
521 | case 260: /* Solaris prpsinfo_t. */ | |
522 | elf_tdata (abfd)->core_program | |
523 | = _bfd_elfcore_strndup (abfd, note->descdata + 84, 16); | |
524 | elf_tdata (abfd)->core_command | |
525 | = _bfd_elfcore_strndup (abfd, note->descdata + 100, 80); | |
526 | break; | |
527 | ||
528 | case 336: /* Solaris psinfo_t. */ | |
529 | elf_tdata (abfd)->core_program | |
530 | = _bfd_elfcore_strndup (abfd, note->descdata + 88, 16); | |
531 | elf_tdata (abfd)->core_command | |
532 | = _bfd_elfcore_strndup (abfd, note->descdata + 104, 80); | |
533 | break; | |
534 | } | |
535 | ||
536 | return TRUE; | |
537 | } | |
538 | ||
252b5132 RH |
539 | \f |
540 | /* Functions for the SPARC ELF linker. */ | |
541 | ||
542 | /* The name of the dynamic interpreter. This is put in the .interp | |
543 | section. */ | |
544 | ||
545 | #define ELF_DYNAMIC_INTERPRETER "/usr/lib/ld.so.1" | |
546 | ||
547 | /* The nop opcode we use. */ | |
548 | ||
549 | #define SPARC_NOP 0x01000000 | |
550 | ||
551 | /* The size in bytes of an entry in the procedure linkage table. */ | |
552 | ||
553 | #define PLT_ENTRY_SIZE 12 | |
554 | ||
555 | /* The first four entries in a procedure linkage table are reserved, | |
556 | and the initial contents are unimportant (we zero them out). | |
557 | Subsequent entries look like this. See the SVR4 ABI SPARC | |
558 | supplement to see how this works. */ | |
559 | ||
560 | /* sethi %hi(.-.plt0),%g1. We fill in the address later. */ | |
561 | #define PLT_ENTRY_WORD0 0x03000000 | |
562 | /* b,a .plt0. We fill in the offset later. */ | |
563 | #define PLT_ENTRY_WORD1 0x30800000 | |
564 | /* nop. */ | |
565 | #define PLT_ENTRY_WORD2 SPARC_NOP | |
566 | ||
b9734f35 JJ |
567 | /* The SPARC linker needs to keep track of the number of relocs that it |
568 | decides to copy as dynamic relocs in check_relocs for each symbol. | |
569 | This is so that it can later discard them if they are found to be | |
570 | unnecessary. We store the information in a field extending the | |
571 | regular ELF linker hash table. */ | |
572 | ||
573 | struct elf32_sparc_dyn_relocs | |
574 | { | |
575 | struct elf32_sparc_dyn_relocs *next; | |
576 | ||
577 | /* The input section of the reloc. */ | |
578 | asection *sec; | |
579 | ||
580 | /* Total number of relocs copied for the input section. */ | |
581 | bfd_size_type count; | |
582 | ||
583 | /* Number of pc-relative relocs copied for the input section. */ | |
584 | bfd_size_type pc_count; | |
585 | }; | |
586 | ||
587 | /* SPARC ELF linker hash entry. */ | |
588 | ||
589 | struct elf32_sparc_link_hash_entry | |
590 | { | |
591 | struct elf_link_hash_entry elf; | |
592 | ||
593 | /* Track dynamic relocs copied for this symbol. */ | |
594 | struct elf32_sparc_dyn_relocs *dyn_relocs; | |
595 | ||
596 | #define GOT_UNKNOWN 0 | |
597 | #define GOT_NORMAL 1 | |
598 | #define GOT_TLS_GD 2 | |
599 | #define GOT_TLS_IE 3 | |
600 | unsigned char tls_type; | |
601 | }; | |
602 | ||
603 | #define elf32_sparc_hash_entry(ent) ((struct elf32_sparc_link_hash_entry *)(ent)) | |
604 | ||
605 | struct elf32_sparc_obj_tdata | |
606 | { | |
607 | struct elf_obj_tdata root; | |
608 | ||
609 | /* tls_type for each local got entry. */ | |
610 | char *local_got_tls_type; | |
611 | ||
612 | /* TRUE if TLS GD relocs has been seen for this object. */ | |
613 | bfd_boolean has_tlsgd; | |
614 | }; | |
615 | ||
616 | #define elf32_sparc_tdata(abfd) \ | |
617 | ((struct elf32_sparc_obj_tdata *) (abfd)->tdata.any) | |
618 | ||
619 | #define elf32_sparc_local_got_tls_type(abfd) \ | |
620 | (elf32_sparc_tdata (abfd)->local_got_tls_type) | |
621 | ||
622 | static bfd_boolean | |
623 | elf32_sparc_mkobject (abfd) | |
624 | bfd *abfd; | |
625 | { | |
626 | bfd_size_type amt = sizeof (struct elf32_sparc_obj_tdata); | |
627 | abfd->tdata.any = bfd_zalloc (abfd, amt); | |
628 | if (abfd->tdata.any == NULL) | |
629 | return FALSE; | |
630 | return TRUE; | |
631 | } | |
632 | ||
633 | /* SPARC ELF linker hash table. */ | |
634 | ||
635 | struct elf32_sparc_link_hash_table | |
636 | { | |
637 | struct elf_link_hash_table elf; | |
638 | ||
639 | /* Short-cuts to get to dynamic linker sections. */ | |
640 | asection *sgot; | |
641 | asection *srelgot; | |
642 | asection *splt; | |
643 | asection *srelplt; | |
644 | asection *sdynbss; | |
645 | asection *srelbss; | |
646 | ||
647 | union { | |
648 | bfd_signed_vma refcount; | |
649 | bfd_vma offset; | |
650 | } tls_ldm_got; | |
651 | ||
652 | /* Small local sym to section mapping cache. */ | |
653 | struct sym_sec_cache sym_sec; | |
654 | }; | |
655 | ||
656 | /* Get the SPARC ELF linker hash table from a link_info structure. */ | |
657 | ||
658 | #define elf32_sparc_hash_table(p) \ | |
659 | ((struct elf32_sparc_link_hash_table *) ((p)->hash)) | |
660 | ||
661 | /* Create an entry in an i386 ELF linker hash table. */ | |
662 | ||
663 | static struct bfd_hash_entry * | |
664 | link_hash_newfunc (entry, table, string) | |
665 | struct bfd_hash_entry *entry; | |
666 | struct bfd_hash_table *table; | |
667 | const char *string; | |
668 | { | |
669 | /* Allocate the structure if it has not already been allocated by a | |
670 | subclass. */ | |
671 | if (entry == NULL) | |
672 | { | |
673 | entry = bfd_hash_allocate (table, | |
26e41594 | 674 | sizeof (struct elf32_sparc_link_hash_entry)); |
b9734f35 | 675 | if (entry == NULL) |
26e41594 | 676 | return entry; |
b9734f35 JJ |
677 | } |
678 | ||
679 | /* Call the allocation method of the superclass. */ | |
680 | entry = _bfd_elf_link_hash_newfunc (entry, table, string); | |
681 | if (entry != NULL) | |
682 | { | |
683 | struct elf32_sparc_link_hash_entry *eh; | |
684 | ||
685 | eh = (struct elf32_sparc_link_hash_entry *) entry; | |
686 | eh->dyn_relocs = NULL; | |
687 | eh->tls_type = GOT_UNKNOWN; | |
688 | } | |
689 | ||
690 | return entry; | |
691 | } | |
692 | ||
693 | /* Create a SPARC ELF linker hash table. */ | |
694 | ||
695 | static struct bfd_link_hash_table * | |
696 | elf32_sparc_link_hash_table_create (abfd) | |
697 | bfd *abfd; | |
698 | { | |
699 | struct elf32_sparc_link_hash_table *ret; | |
700 | bfd_size_type amt = sizeof (struct elf32_sparc_link_hash_table); | |
701 | ||
702 | ret = (struct elf32_sparc_link_hash_table *) bfd_malloc (amt); | |
703 | if (ret == NULL) | |
704 | return NULL; | |
705 | ||
706 | if (! _bfd_elf_link_hash_table_init (&ret->elf, abfd, link_hash_newfunc)) | |
707 | { | |
708 | free (ret); | |
709 | return NULL; | |
710 | } | |
711 | ||
712 | ret->sgot = NULL; | |
713 | ret->srelgot = NULL; | |
714 | ret->splt = NULL; | |
715 | ret->srelplt = NULL; | |
716 | ret->sdynbss = NULL; | |
717 | ret->srelbss = NULL; | |
718 | ret->tls_ldm_got.refcount = 0; | |
719 | ret->sym_sec.abfd = NULL; | |
720 | ||
721 | return &ret->elf.root; | |
722 | } | |
723 | ||
724 | /* Create .got and .rela.got sections in DYNOBJ, and set up | |
725 | shortcuts to them in our hash table. */ | |
726 | ||
727 | static bfd_boolean | |
728 | create_got_section (dynobj, info) | |
729 | bfd *dynobj; | |
730 | struct bfd_link_info *info; | |
731 | { | |
732 | struct elf32_sparc_link_hash_table *htab; | |
733 | ||
734 | if (! _bfd_elf_create_got_section (dynobj, info)) | |
735 | return FALSE; | |
736 | ||
737 | htab = elf32_sparc_hash_table (info); | |
738 | htab->sgot = bfd_get_section_by_name (dynobj, ".got"); | |
739 | if (!htab->sgot) | |
740 | abort (); | |
741 | ||
742 | htab->srelgot = bfd_make_section (dynobj, ".rela.got"); | |
743 | if (htab->srelgot == NULL | |
744 | || ! bfd_set_section_flags (dynobj, htab->srelgot, | |
745 | (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | |
746 | | SEC_IN_MEMORY | SEC_LINKER_CREATED | |
747 | | SEC_READONLY)) | |
748 | || ! bfd_set_section_alignment (dynobj, htab->srelgot, 2)) | |
749 | return FALSE; | |
750 | return TRUE; | |
751 | } | |
752 | ||
753 | /* Create .plt, .rela.plt, .got, .rela.got, .dynbss, and | |
754 | .rela.bss sections in DYNOBJ, and set up shortcuts to them in our | |
755 | hash table. */ | |
756 | ||
757 | static bfd_boolean | |
758 | elf32_sparc_create_dynamic_sections (dynobj, info) | |
759 | bfd *dynobj; | |
760 | struct bfd_link_info *info; | |
761 | { | |
762 | struct elf32_sparc_link_hash_table *htab; | |
763 | ||
764 | htab = elf32_sparc_hash_table (info); | |
765 | if (!htab->sgot && !create_got_section (dynobj, info)) | |
766 | return FALSE; | |
767 | ||
768 | if (!_bfd_elf_create_dynamic_sections (dynobj, info)) | |
769 | return FALSE; | |
770 | ||
771 | htab->splt = bfd_get_section_by_name (dynobj, ".plt"); | |
772 | htab->srelplt = bfd_get_section_by_name (dynobj, ".rela.plt"); | |
773 | htab->sdynbss = bfd_get_section_by_name (dynobj, ".dynbss"); | |
774 | if (!info->shared) | |
775 | htab->srelbss = bfd_get_section_by_name (dynobj, ".rela.bss"); | |
776 | ||
777 | if (!htab->splt || !htab->srelplt || !htab->sdynbss | |
778 | || (!info->shared && !htab->srelbss)) | |
779 | abort (); | |
780 | ||
781 | return TRUE; | |
782 | } | |
783 | ||
784 | /* Copy the extra info we tack onto an elf_link_hash_entry. */ | |
785 | ||
786 | static void | |
787 | elf32_sparc_copy_indirect_symbol (bed, dir, ind) | |
9c5bfbb7 | 788 | const struct elf_backend_data *bed; |
b9734f35 JJ |
789 | struct elf_link_hash_entry *dir, *ind; |
790 | { | |
791 | struct elf32_sparc_link_hash_entry *edir, *eind; | |
792 | ||
793 | edir = (struct elf32_sparc_link_hash_entry *) dir; | |
794 | eind = (struct elf32_sparc_link_hash_entry *) ind; | |
795 | ||
796 | if (eind->dyn_relocs != NULL) | |
797 | { | |
798 | if (edir->dyn_relocs != NULL) | |
26e41594 AM |
799 | { |
800 | struct elf32_sparc_dyn_relocs **pp; | |
801 | struct elf32_sparc_dyn_relocs *p; | |
802 | ||
803 | if (ind->root.type == bfd_link_hash_indirect) | |
804 | abort (); | |
805 | ||
806 | /* Add reloc counts against the weak sym to the strong sym | |
807 | list. Merge any entries against the same section. */ | |
808 | for (pp = &eind->dyn_relocs; (p = *pp) != NULL; ) | |
809 | { | |
810 | struct elf32_sparc_dyn_relocs *q; | |
811 | ||
812 | for (q = edir->dyn_relocs; q != NULL; q = q->next) | |
813 | if (q->sec == p->sec) | |
814 | { | |
815 | q->pc_count += p->pc_count; | |
816 | q->count += p->count; | |
817 | *pp = p->next; | |
818 | break; | |
819 | } | |
820 | if (q == NULL) | |
821 | pp = &p->next; | |
822 | } | |
823 | *pp = edir->dyn_relocs; | |
824 | } | |
b9734f35 JJ |
825 | |
826 | edir->dyn_relocs = eind->dyn_relocs; | |
827 | eind->dyn_relocs = NULL; | |
828 | } | |
829 | ||
830 | if (ind->root.type == bfd_link_hash_indirect | |
831 | && dir->got.refcount <= 0) | |
832 | { | |
833 | edir->tls_type = eind->tls_type; | |
834 | eind->tls_type = GOT_UNKNOWN; | |
835 | } | |
836 | _bfd_elf_link_hash_copy_indirect (bed, dir, ind); | |
837 | } | |
838 | ||
839 | static int | |
840 | elf32_sparc_tls_transition (info, abfd, r_type, is_local) | |
841 | struct bfd_link_info *info; | |
842 | bfd *abfd; | |
843 | int r_type; | |
844 | int is_local; | |
845 | { | |
846 | if (r_type == R_SPARC_TLS_GD_HI22 | |
847 | && ! elf32_sparc_tdata (abfd)->has_tlsgd) | |
848 | r_type = R_SPARC_REV32; | |
849 | ||
850 | if (info->shared) | |
851 | return r_type; | |
852 | ||
853 | switch (r_type) | |
854 | { | |
855 | case R_SPARC_TLS_GD_HI22: | |
856 | if (is_local) | |
857 | return R_SPARC_TLS_LE_HIX22; | |
858 | return R_SPARC_TLS_IE_HI22; | |
859 | case R_SPARC_TLS_GD_LO10: | |
860 | if (is_local) | |
26e41594 | 861 | return R_SPARC_TLS_LE_LOX10; |
b9734f35 JJ |
862 | return R_SPARC_TLS_IE_LO10; |
863 | case R_SPARC_TLS_IE_HI22: | |
864 | if (is_local) | |
26e41594 | 865 | return R_SPARC_TLS_LE_HIX22; |
b9734f35 JJ |
866 | return r_type; |
867 | case R_SPARC_TLS_IE_LO10: | |
868 | if (is_local) | |
26e41594 | 869 | return R_SPARC_TLS_LE_LOX10; |
b9734f35 JJ |
870 | return r_type; |
871 | case R_SPARC_TLS_LDM_HI22: | |
872 | return R_SPARC_TLS_LE_HIX22; | |
873 | case R_SPARC_TLS_LDM_LO10: | |
874 | return R_SPARC_TLS_LE_LOX10; | |
875 | } | |
876 | ||
877 | return r_type; | |
878 | } | |
879 | ||
252b5132 RH |
880 | /* Look through the relocs for a section during the first phase, and |
881 | allocate space in the global offset table or procedure linkage | |
882 | table. */ | |
883 | ||
b34976b6 | 884 | static bfd_boolean |
252b5132 RH |
885 | elf32_sparc_check_relocs (abfd, info, sec, relocs) |
886 | bfd *abfd; | |
887 | struct bfd_link_info *info; | |
888 | asection *sec; | |
889 | const Elf_Internal_Rela *relocs; | |
890 | { | |
b9734f35 | 891 | struct elf32_sparc_link_hash_table *htab; |
252b5132 RH |
892 | Elf_Internal_Shdr *symtab_hdr; |
893 | struct elf_link_hash_entry **sym_hashes; | |
894 | bfd_vma *local_got_offsets; | |
895 | const Elf_Internal_Rela *rel; | |
896 | const Elf_Internal_Rela *rel_end; | |
252b5132 | 897 | asection *sreloc; |
b9734f35 | 898 | bfd_boolean checked_tlsgd = FALSE; |
252b5132 | 899 | |
1049f94e | 900 | if (info->relocatable) |
b34976b6 | 901 | return TRUE; |
252b5132 | 902 | |
b9734f35 | 903 | htab = elf32_sparc_hash_table (info); |
252b5132 RH |
904 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; |
905 | sym_hashes = elf_sym_hashes (abfd); | |
906 | local_got_offsets = elf_local_got_offsets (abfd); | |
907 | ||
252b5132 RH |
908 | sreloc = NULL; |
909 | ||
910 | rel_end = relocs + sec->reloc_count; | |
911 | for (rel = relocs; rel < rel_end; rel++) | |
912 | { | |
b9734f35 | 913 | unsigned int r_type; |
252b5132 RH |
914 | unsigned long r_symndx; |
915 | struct elf_link_hash_entry *h; | |
916 | ||
917 | r_symndx = ELF32_R_SYM (rel->r_info); | |
b9734f35 JJ |
918 | r_type = ELF32_R_TYPE (rel->r_info); |
919 | ||
920 | if (r_symndx >= NUM_SHDR_ENTRIES (symtab_hdr)) | |
26e41594 AM |
921 | { |
922 | (*_bfd_error_handler) (_("%s: bad symbol index: %d"), | |
923 | bfd_archive_filename (abfd), | |
924 | r_symndx); | |
925 | return FALSE; | |
926 | } | |
b9734f35 | 927 | |
252b5132 RH |
928 | if (r_symndx < symtab_hdr->sh_info) |
929 | h = NULL; | |
930 | else | |
931 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
932 | ||
b9734f35 JJ |
933 | /* Compatibility with old R_SPARC_REV32 reloc conflicting |
934 | with R_SPARC_TLS_GD_HI22. */ | |
935 | if (! checked_tlsgd) | |
936 | switch (r_type) | |
937 | { | |
938 | case R_SPARC_TLS_GD_HI22: | |
939 | { | |
940 | const Elf_Internal_Rela *relt; | |
941 | ||
942 | for (relt = rel + 1; relt < rel_end; relt++) | |
943 | if (ELF32_R_TYPE (relt->r_info) == R_SPARC_TLS_GD_LO10 | |
944 | || ELF32_R_TYPE (relt->r_info) == R_SPARC_TLS_GD_ADD | |
945 | || ELF32_R_TYPE (relt->r_info) == R_SPARC_TLS_GD_CALL) | |
946 | break; | |
947 | checked_tlsgd = TRUE; | |
948 | elf32_sparc_tdata (abfd)->has_tlsgd = relt < rel_end; | |
949 | } | |
950 | break; | |
951 | case R_SPARC_TLS_GD_LO10: | |
952 | case R_SPARC_TLS_GD_ADD: | |
953 | case R_SPARC_TLS_GD_CALL: | |
954 | checked_tlsgd = TRUE; | |
955 | elf32_sparc_tdata (abfd)->has_tlsgd = TRUE; | |
956 | break; | |
957 | } | |
958 | ||
959 | r_type = elf32_sparc_tls_transition (info, abfd, r_type, h == NULL); | |
960 | switch (r_type) | |
252b5132 | 961 | { |
b9734f35 JJ |
962 | case R_SPARC_TLS_LDM_HI22: |
963 | case R_SPARC_TLS_LDM_LO10: | |
964 | htab->tls_ldm_got.refcount += 1; | |
965 | break; | |
966 | ||
967 | case R_SPARC_TLS_LE_HIX22: | |
968 | case R_SPARC_TLS_LE_LOX10: | |
969 | if (info->shared) | |
970 | goto r_sparc_plt32; | |
971 | break; | |
972 | ||
973 | case R_SPARC_TLS_IE_HI22: | |
974 | case R_SPARC_TLS_IE_LO10: | |
975 | if (info->shared) | |
976 | info->flags |= DF_STATIC_TLS; | |
977 | /* Fall through */ | |
978 | ||
252b5132 RH |
979 | case R_SPARC_GOT10: |
980 | case R_SPARC_GOT13: | |
981 | case R_SPARC_GOT22: | |
b9734f35 JJ |
982 | case R_SPARC_TLS_GD_HI22: |
983 | case R_SPARC_TLS_GD_LO10: | |
252b5132 | 984 | /* This symbol requires a global offset table entry. */ |
b9734f35 JJ |
985 | { |
986 | int tls_type, old_tls_type; | |
252b5132 | 987 | |
b9734f35 JJ |
988 | switch (r_type) |
989 | { | |
990 | default: | |
991 | case R_SPARC_GOT10: | |
992 | case R_SPARC_GOT13: | |
993 | case R_SPARC_GOT22: | |
994 | tls_type = GOT_NORMAL; | |
995 | break; | |
996 | case R_SPARC_TLS_GD_HI22: | |
997 | case R_SPARC_TLS_GD_LO10: | |
998 | tls_type = GOT_TLS_GD; | |
999 | break; | |
1000 | case R_SPARC_TLS_IE_HI22: | |
1001 | case R_SPARC_TLS_IE_LO10: | |
1002 | tls_type = GOT_TLS_IE; | |
1003 | break; | |
1004 | } | |
252b5132 | 1005 | |
b9734f35 JJ |
1006 | if (h != NULL) |
1007 | { | |
1008 | h->got.refcount += 1; | |
1009 | old_tls_type = elf32_sparc_hash_entry(h)->tls_type; | |
1010 | } | |
1011 | else | |
1012 | { | |
1013 | bfd_signed_vma *local_got_refcounts; | |
252b5132 | 1014 | |
b9734f35 JJ |
1015 | /* This is a global offset table entry for a local symbol. */ |
1016 | local_got_refcounts = elf_local_got_refcounts (abfd); | |
1017 | if (local_got_refcounts == NULL) | |
1018 | { | |
1019 | bfd_size_type size; | |
252b5132 | 1020 | |
b9734f35 JJ |
1021 | size = symtab_hdr->sh_info; |
1022 | size *= (sizeof (bfd_signed_vma) + sizeof(char)); | |
1023 | local_got_refcounts = ((bfd_signed_vma *) | |
1024 | bfd_zalloc (abfd, size)); | |
1025 | if (local_got_refcounts == NULL) | |
1026 | return FALSE; | |
1027 | elf_local_got_refcounts (abfd) = local_got_refcounts; | |
1028 | elf32_sparc_local_got_tls_type (abfd) | |
1029 | = (char *) (local_got_refcounts + symtab_hdr->sh_info); | |
1030 | } | |
1031 | local_got_refcounts[r_symndx] += 1; | |
1032 | old_tls_type = elf32_sparc_local_got_tls_type (abfd) [r_symndx]; | |
1033 | } | |
252b5132 | 1034 | |
b9734f35 JJ |
1035 | /* If a TLS symbol is accessed using IE at least once, |
1036 | there is no point to use dynamic model for it. */ | |
1037 | if (old_tls_type != tls_type && old_tls_type != GOT_UNKNOWN | |
1038 | && (old_tls_type != GOT_TLS_GD | |
1039 | || tls_type != GOT_TLS_IE)) | |
1040 | { | |
1041 | if (old_tls_type == GOT_TLS_IE && tls_type == GOT_TLS_GD) | |
1042 | tls_type = old_tls_type; | |
1043 | else | |
1044 | { | |
1045 | (*_bfd_error_handler) | |
1046 | (_("%s: `%s' accessed both as normal and thread local symbol"), | |
1047 | bfd_archive_filename (abfd), | |
1048 | h ? h->root.root.string : "<local>"); | |
b34976b6 | 1049 | return FALSE; |
b9734f35 JJ |
1050 | } |
1051 | } | |
252b5132 | 1052 | |
b9734f35 JJ |
1053 | if (old_tls_type != tls_type) |
1054 | { | |
1055 | if (h != NULL) | |
1056 | elf32_sparc_hash_entry (h)->tls_type = tls_type; | |
1057 | else | |
1058 | elf32_sparc_local_got_tls_type (abfd) [r_symndx] = tls_type; | |
1059 | } | |
1060 | } | |
252b5132 | 1061 | |
2293c499 AM |
1062 | if (htab->sgot == NULL) |
1063 | { | |
1064 | if (htab->elf.dynobj == NULL) | |
1065 | htab->elf.dynobj = abfd; | |
1066 | if (!create_got_section (htab->elf.dynobj, info)) | |
1067 | return FALSE; | |
1068 | } | |
b9734f35 | 1069 | break; |
252b5132 | 1070 | |
b9734f35 JJ |
1071 | case R_SPARC_TLS_GD_CALL: |
1072 | case R_SPARC_TLS_LDM_CALL: | |
1073 | if (info->shared) | |
1074 | { | |
1075 | /* These are basically R_SPARC_TLS_WPLT30 relocs against | |
1076 | __tls_get_addr. */ | |
1077 | struct bfd_link_hash_entry *bh = NULL; | |
1078 | if (! _bfd_generic_link_add_one_symbol (info, abfd, | |
1079 | "__tls_get_addr", 0, | |
1080 | bfd_und_section_ptr, 0, | |
1081 | NULL, FALSE, FALSE, | |
1082 | &bh)) | |
1083 | return FALSE; | |
1084 | h = (struct elf_link_hash_entry *) bh; | |
252b5132 | 1085 | } |
b9734f35 JJ |
1086 | else |
1087 | break; | |
1088 | /* Fall through */ | |
252b5132 | 1089 | |
bd5e6e7e | 1090 | case R_SPARC_PLT32: |
252b5132 RH |
1091 | case R_SPARC_WPLT30: |
1092 | /* This symbol requires a procedure linkage table entry. We | |
26e41594 AM |
1093 | actually build the entry in adjust_dynamic_symbol, |
1094 | because this might be a case of linking PIC code without | |
1095 | linking in any dynamic objects, in which case we don't | |
1096 | need to generate a procedure linkage table after all. */ | |
252b5132 RH |
1097 | |
1098 | if (h == NULL) | |
1099 | { | |
1100 | /* The Solaris native assembler will generate a WPLT30 | |
26e41594 AM |
1101 | reloc for a local symbol if you assemble a call from |
1102 | one section to another when using -K pic. We treat | |
1103 | it as WDISP30. */ | |
b9734f35 | 1104 | if (ELF32_R_TYPE (rel->r_info) == R_SPARC_PLT32) |
bd5e6e7e | 1105 | goto r_sparc_plt32; |
252b5132 RH |
1106 | break; |
1107 | } | |
1108 | ||
252b5132 RH |
1109 | h->elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_PLT; |
1110 | ||
b9734f35 | 1111 | if (ELF32_R_TYPE (rel->r_info) == R_SPARC_PLT32) |
bd5e6e7e | 1112 | goto r_sparc_plt32; |
b9734f35 | 1113 | h->plt.refcount += 1; |
252b5132 RH |
1114 | break; |
1115 | ||
1116 | case R_SPARC_PC10: | |
1117 | case R_SPARC_PC22: | |
7843f00e ILT |
1118 | if (h != NULL) |
1119 | h->elf_link_hash_flags |= ELF_LINK_NON_GOT_REF; | |
1120 | ||
252b5132 RH |
1121 | if (h != NULL |
1122 | && strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0) | |
1123 | break; | |
1124 | /* Fall through. */ | |
b9734f35 | 1125 | |
252b5132 RH |
1126 | case R_SPARC_DISP8: |
1127 | case R_SPARC_DISP16: | |
1128 | case R_SPARC_DISP32: | |
1129 | case R_SPARC_WDISP30: | |
1130 | case R_SPARC_WDISP22: | |
1131 | case R_SPARC_WDISP19: | |
1132 | case R_SPARC_WDISP16: | |
252b5132 RH |
1133 | case R_SPARC_8: |
1134 | case R_SPARC_16: | |
1135 | case R_SPARC_32: | |
1136 | case R_SPARC_HI22: | |
1137 | case R_SPARC_22: | |
1138 | case R_SPARC_13: | |
1139 | case R_SPARC_LO10: | |
0f2712ed | 1140 | case R_SPARC_UA16: |
252b5132 | 1141 | case R_SPARC_UA32: |
7843f00e ILT |
1142 | if (h != NULL) |
1143 | h->elf_link_hash_flags |= ELF_LINK_NON_GOT_REF; | |
1144 | ||
bd5e6e7e | 1145 | r_sparc_plt32: |
b9734f35 JJ |
1146 | if (h != NULL && !info->shared) |
1147 | { | |
1148 | /* We may need a .plt entry if the function this reloc | |
1149 | refers to is in a shared lib. */ | |
1150 | h->plt.refcount += 1; | |
1151 | } | |
1152 | ||
1153 | /* If we are creating a shared library, and this is a reloc | |
1154 | against a global symbol, or a non PC relative reloc | |
1155 | against a local symbol, then we need to copy the reloc | |
1156 | into the shared library. However, if we are linking with | |
1157 | -Bsymbolic, we do not need to copy a reloc against a | |
1158 | global symbol which is defined in an object we are | |
1159 | including in the link (i.e., DEF_REGULAR is set). At | |
1160 | this point we have not seen all the input files, so it is | |
1161 | possible that DEF_REGULAR is not set now but will be set | |
1162 | later (it is never cleared). In case of a weak definition, | |
1163 | DEF_REGULAR may be cleared later by a strong definition in | |
1164 | a shared library. We account for that possibility below by | |
1165 | storing information in the relocs_copied field of the hash | |
1166 | table entry. A similar situation occurs when creating | |
1167 | shared libraries and symbol visibility changes render the | |
1168 | symbol local. | |
1169 | ||
1170 | If on the other hand, we are creating an executable, we | |
1171 | may need to keep relocations for symbols satisfied by a | |
1172 | dynamic library if we manage to avoid copy relocs for the | |
1173 | symbol. */ | |
1174 | if ((info->shared | |
1175 | && (sec->flags & SEC_ALLOC) != 0 | |
1176 | && (! _bfd_sparc_elf_howto_table[r_type].pc_relative | |
1177 | || (h != NULL | |
1178 | && (! info->symbolic | |
1179 | || h->root.type == bfd_link_hash_defweak | |
1180 | || (h->elf_link_hash_flags | |
1181 | & ELF_LINK_HASH_DEF_REGULAR) == 0)))) | |
1182 | || (!info->shared | |
1183 | && (sec->flags & SEC_ALLOC) != 0 | |
1184 | && h != NULL | |
1185 | && (h->root.type == bfd_link_hash_defweak | |
1186 | || (h->elf_link_hash_flags | |
1187 | & ELF_LINK_HASH_DEF_REGULAR) == 0))) | |
252b5132 | 1188 | { |
b9734f35 JJ |
1189 | struct elf32_sparc_dyn_relocs *p; |
1190 | struct elf32_sparc_dyn_relocs **head; | |
1191 | ||
252b5132 | 1192 | /* When creating a shared object, we must copy these |
26e41594 AM |
1193 | relocs into the output file. We create a reloc |
1194 | section in dynobj and make room for the reloc. */ | |
252b5132 RH |
1195 | if (sreloc == NULL) |
1196 | { | |
1197 | const char *name; | |
b9734f35 | 1198 | bfd *dynobj; |
252b5132 RH |
1199 | |
1200 | name = (bfd_elf_string_from_elf_section | |
1201 | (abfd, | |
1202 | elf_elfheader (abfd)->e_shstrndx, | |
1203 | elf_section_data (sec)->rel_hdr.sh_name)); | |
1204 | if (name == NULL) | |
b34976b6 | 1205 | return FALSE; |
252b5132 RH |
1206 | |
1207 | BFD_ASSERT (strncmp (name, ".rela", 5) == 0 | |
1208 | && strcmp (bfd_get_section_name (abfd, sec), | |
1209 | name + 5) == 0); | |
1210 | ||
b9734f35 JJ |
1211 | if (htab->elf.dynobj == NULL) |
1212 | htab->elf.dynobj = abfd; | |
1213 | dynobj = htab->elf.dynobj; | |
1214 | ||
252b5132 RH |
1215 | sreloc = bfd_get_section_by_name (dynobj, name); |
1216 | if (sreloc == NULL) | |
1217 | { | |
1218 | flagword flags; | |
1219 | ||
1220 | sreloc = bfd_make_section (dynobj, name); | |
1221 | flags = (SEC_HAS_CONTENTS | SEC_READONLY | |
1222 | | SEC_IN_MEMORY | SEC_LINKER_CREATED); | |
1223 | if ((sec->flags & SEC_ALLOC) != 0) | |
1224 | flags |= SEC_ALLOC | SEC_LOAD; | |
1225 | if (sreloc == NULL | |
1226 | || ! bfd_set_section_flags (dynobj, sreloc, flags) | |
1227 | || ! bfd_set_section_alignment (dynobj, sreloc, 2)) | |
b34976b6 | 1228 | return FALSE; |
252b5132 | 1229 | } |
b9734f35 | 1230 | elf_section_data (sec)->sreloc = sreloc; |
252b5132 RH |
1231 | } |
1232 | ||
b9734f35 JJ |
1233 | /* If this is a global symbol, we count the number of |
1234 | relocations we need for this symbol. */ | |
1235 | if (h != NULL) | |
1236 | head = &((struct elf32_sparc_link_hash_entry *) h)->dyn_relocs; | |
1237 | else | |
1238 | { | |
1239 | /* Track dynamic relocs needed for local syms too. | |
1240 | We really need local syms available to do this | |
1241 | easily. Oh well. */ | |
1242 | ||
1243 | asection *s; | |
1244 | s = bfd_section_from_r_symndx (abfd, &htab->sym_sec, | |
1245 | sec, r_symndx); | |
1246 | if (s == NULL) | |
1247 | return FALSE; | |
1248 | ||
1249 | head = ((struct elf32_sparc_dyn_relocs **) | |
1250 | &elf_section_data (s)->local_dynrel); | |
1251 | } | |
1252 | ||
1253 | p = *head; | |
1254 | if (p == NULL || p->sec != sec) | |
1255 | { | |
1256 | bfd_size_type amt = sizeof *p; | |
1257 | p = ((struct elf32_sparc_dyn_relocs *) | |
1258 | bfd_alloc (htab->elf.dynobj, amt)); | |
1259 | if (p == NULL) | |
1260 | return FALSE; | |
1261 | p->next = *head; | |
1262 | *head = p; | |
1263 | p->sec = sec; | |
1264 | p->count = 0; | |
1265 | p->pc_count = 0; | |
1266 | } | |
1267 | ||
1268 | p->count += 1; | |
1269 | if (_bfd_sparc_elf_howto_table[r_type].pc_relative) | |
1270 | p->pc_count += 1; | |
252b5132 RH |
1271 | } |
1272 | ||
1273 | break; | |
1274 | ||
26e41594 | 1275 | case R_SPARC_GNU_VTINHERIT: |
c152c796 | 1276 | if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset)) |
26e41594 AM |
1277 | return FALSE; |
1278 | break; | |
252b5132 | 1279 | |
26e41594 | 1280 | case R_SPARC_GNU_VTENTRY: |
c152c796 | 1281 | if (!bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend)) |
26e41594 AM |
1282 | return FALSE; |
1283 | break; | |
252b5132 RH |
1284 | |
1285 | default: | |
1286 | break; | |
1287 | } | |
1288 | } | |
1289 | ||
b34976b6 | 1290 | return TRUE; |
252b5132 RH |
1291 | } |
1292 | ||
1293 | static asection * | |
1e2f5b6e AM |
1294 | elf32_sparc_gc_mark_hook (sec, info, rel, h, sym) |
1295 | asection *sec; | |
5f771d47 | 1296 | struct bfd_link_info *info ATTRIBUTE_UNUSED; |
252b5132 RH |
1297 | Elf_Internal_Rela *rel; |
1298 | struct elf_link_hash_entry *h; | |
1299 | Elf_Internal_Sym *sym; | |
1300 | { | |
252b5132 RH |
1301 | if (h != NULL) |
1302 | { | |
1303 | switch (ELF32_R_TYPE (rel->r_info)) | |
1304 | { | |
1305 | case R_SPARC_GNU_VTINHERIT: | |
1306 | case R_SPARC_GNU_VTENTRY: | |
26e41594 | 1307 | break; |
252b5132 RH |
1308 | |
1309 | default: | |
26e41594 AM |
1310 | switch (h->root.type) |
1311 | { | |
1312 | case bfd_link_hash_defined: | |
1313 | case bfd_link_hash_defweak: | |
1314 | return h->root.u.def.section; | |
252b5132 | 1315 | |
26e41594 AM |
1316 | case bfd_link_hash_common: |
1317 | return h->root.u.c.p->section; | |
e049a0de ILT |
1318 | |
1319 | default: | |
1320 | break; | |
26e41594 | 1321 | } |
252b5132 RH |
1322 | } |
1323 | } | |
1324 | else | |
1e2f5b6e | 1325 | return bfd_section_from_elf_index (sec->owner, sym->st_shndx); |
252b5132 RH |
1326 | |
1327 | return NULL; | |
1328 | } | |
1329 | ||
1330 | /* Update the got entry reference counts for the section being removed. */ | |
b34976b6 | 1331 | static bfd_boolean |
252b5132 RH |
1332 | elf32_sparc_gc_sweep_hook (abfd, info, sec, relocs) |
1333 | bfd *abfd; | |
5f771d47 | 1334 | struct bfd_link_info *info ATTRIBUTE_UNUSED; |
252b5132 RH |
1335 | asection *sec; |
1336 | const Elf_Internal_Rela *relocs; | |
1337 | { | |
252b5132 RH |
1338 | Elf_Internal_Shdr *symtab_hdr; |
1339 | struct elf_link_hash_entry **sym_hashes; | |
1340 | bfd_signed_vma *local_got_refcounts; | |
1341 | const Elf_Internal_Rela *rel, *relend; | |
26e41594 AM |
1342 | |
1343 | elf_section_data (sec)->local_dynrel = NULL; | |
252b5132 RH |
1344 | |
1345 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; | |
1346 | sym_hashes = elf_sym_hashes (abfd); | |
1347 | local_got_refcounts = elf_local_got_refcounts (abfd); | |
1348 | ||
1349 | relend = relocs + sec->reloc_count; | |
1350 | for (rel = relocs; rel < relend; rel++) | |
26e41594 AM |
1351 | { |
1352 | unsigned long r_symndx; | |
1353 | unsigned int r_type; | |
1354 | struct elf_link_hash_entry *h = NULL; | |
b9734f35 | 1355 | |
26e41594 AM |
1356 | r_symndx = ELF32_R_SYM (rel->r_info); |
1357 | if (r_symndx >= symtab_hdr->sh_info) | |
1358 | { | |
1359 | struct elf32_sparc_link_hash_entry *eh; | |
1360 | struct elf32_sparc_dyn_relocs **pp; | |
1361 | struct elf32_sparc_dyn_relocs *p; | |
b9734f35 | 1362 | |
26e41594 AM |
1363 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; |
1364 | eh = (struct elf32_sparc_link_hash_entry *) h; | |
1365 | for (pp = &eh->dyn_relocs; (p = *pp) != NULL; pp = &p->next) | |
1366 | if (p->sec == sec) | |
1367 | { | |
1368 | /* Everything must go for SEC. */ | |
1369 | *pp = p->next; | |
1370 | break; | |
1371 | } | |
1372 | } | |
b9734f35 | 1373 | |
26e41594 AM |
1374 | r_type = ELF32_R_TYPE (rel->r_info); |
1375 | r_type = elf32_sparc_tls_transition (info, abfd, r_type, h != NULL); | |
1376 | switch (r_type) | |
1377 | { | |
1378 | case R_SPARC_TLS_LDM_HI22: | |
1379 | case R_SPARC_TLS_LDM_LO10: | |
1380 | if (elf32_sparc_hash_table (info)->tls_ldm_got.refcount > 0) | |
1381 | elf32_sparc_hash_table (info)->tls_ldm_got.refcount -= 1; | |
1382 | break; | |
b9734f35 | 1383 | |
26e41594 AM |
1384 | case R_SPARC_TLS_GD_HI22: |
1385 | case R_SPARC_TLS_GD_LO10: | |
1386 | case R_SPARC_TLS_IE_HI22: | |
1387 | case R_SPARC_TLS_IE_LO10: | |
1388 | case R_SPARC_GOT10: | |
1389 | case R_SPARC_GOT13: | |
1390 | case R_SPARC_GOT22: | |
1391 | if (h != NULL) | |
1392 | { | |
1393 | if (h->got.refcount > 0) | |
1394 | h->got.refcount--; | |
1395 | } | |
1396 | else | |
1397 | { | |
1398 | if (local_got_refcounts[r_symndx] > 0) | |
1399 | local_got_refcounts[r_symndx]--; | |
1400 | } | |
1401 | break; | |
b9734f35 | 1402 | |
26e41594 AM |
1403 | case R_SPARC_PC10: |
1404 | case R_SPARC_PC22: | |
1405 | if (h != NULL | |
1406 | && strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0) | |
1407 | break; | |
1408 | /* Fall through. */ | |
b9734f35 | 1409 | |
26e41594 AM |
1410 | case R_SPARC_DISP8: |
1411 | case R_SPARC_DISP16: | |
1412 | case R_SPARC_DISP32: | |
1413 | case R_SPARC_WDISP30: | |
1414 | case R_SPARC_WDISP22: | |
1415 | case R_SPARC_WDISP19: | |
1416 | case R_SPARC_WDISP16: | |
1417 | case R_SPARC_8: | |
1418 | case R_SPARC_16: | |
1419 | case R_SPARC_32: | |
1420 | case R_SPARC_HI22: | |
1421 | case R_SPARC_22: | |
1422 | case R_SPARC_13: | |
1423 | case R_SPARC_LO10: | |
1424 | case R_SPARC_UA16: | |
1425 | case R_SPARC_UA32: | |
1426 | case R_SPARC_PLT32: | |
1427 | if (info->shared) | |
1428 | break; | |
1429 | /* Fall through. */ | |
b9734f35 | 1430 | |
26e41594 AM |
1431 | case R_SPARC_WPLT30: |
1432 | if (h != NULL) | |
1433 | { | |
1434 | if (h->plt.refcount > 0) | |
1435 | h->plt.refcount--; | |
1436 | } | |
1437 | break; | |
252b5132 | 1438 | |
26e41594 AM |
1439 | default: |
1440 | break; | |
1441 | } | |
1442 | } | |
252b5132 | 1443 | |
b34976b6 | 1444 | return TRUE; |
252b5132 RH |
1445 | } |
1446 | ||
1447 | /* Adjust a symbol defined by a dynamic object and referenced by a | |
1448 | regular object. The current definition is in some section of the | |
1449 | dynamic object, but we're not including those sections. We have to | |
1450 | change the definition to something the rest of the link can | |
1451 | understand. */ | |
1452 | ||
b34976b6 | 1453 | static bfd_boolean |
252b5132 RH |
1454 | elf32_sparc_adjust_dynamic_symbol (info, h) |
1455 | struct bfd_link_info *info; | |
1456 | struct elf_link_hash_entry *h; | |
1457 | { | |
b9734f35 JJ |
1458 | struct elf32_sparc_link_hash_table *htab; |
1459 | struct elf32_sparc_link_hash_entry * eh; | |
1460 | struct elf32_sparc_dyn_relocs *p; | |
252b5132 RH |
1461 | asection *s; |
1462 | unsigned int power_of_two; | |
1463 | ||
b9734f35 | 1464 | htab = elf32_sparc_hash_table (info); |
252b5132 RH |
1465 | |
1466 | /* Make sure we know what is going on here. */ | |
b9734f35 | 1467 | BFD_ASSERT (htab->elf.dynobj != NULL |
252b5132 RH |
1468 | && ((h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_PLT) |
1469 | || h->weakdef != NULL | |
1470 | || ((h->elf_link_hash_flags | |
1471 | & ELF_LINK_HASH_DEF_DYNAMIC) != 0 | |
1472 | && (h->elf_link_hash_flags | |
1473 | & ELF_LINK_HASH_REF_REGULAR) != 0 | |
1474 | && (h->elf_link_hash_flags | |
1475 | & ELF_LINK_HASH_DEF_REGULAR) == 0))); | |
1476 | ||
1477 | /* If this is a function, put it in the procedure linkage table. We | |
1478 | will fill in the contents of the procedure linkage table later | |
1479 | (although we could actually do it here). The STT_NOTYPE | |
1480 | condition is a hack specifically for the Oracle libraries | |
1481 | delivered for Solaris; for some inexplicable reason, they define | |
1482 | some of their functions as STT_NOTYPE when they really should be | |
1483 | STT_FUNC. */ | |
1484 | if (h->type == STT_FUNC | |
1485 | || (h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_PLT) != 0 | |
1486 | || (h->type == STT_NOTYPE | |
1487 | && (h->root.type == bfd_link_hash_defined | |
1488 | || h->root.type == bfd_link_hash_defweak) | |
1489 | && (h->root.u.def.section->flags & SEC_CODE) != 0)) | |
1490 | { | |
b9734f35 JJ |
1491 | if (h->plt.refcount <= 0 |
1492 | || (! info->shared | |
1493 | && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC) == 0 | |
1494 | && (h->elf_link_hash_flags & ELF_LINK_HASH_REF_DYNAMIC) == 0 | |
1495 | && h->root.type != bfd_link_hash_undefweak | |
1496 | && h->root.type != bfd_link_hash_undefined)) | |
252b5132 RH |
1497 | { |
1498 | /* This case can occur if we saw a WPLT30 reloc in an input | |
b9734f35 JJ |
1499 | file, but the symbol was never referred to by a dynamic |
1500 | object, or if all references were garbage collected. In | |
1501 | such a case, we don't actually need to build a procedure | |
1502 | linkage table, and we can just do a WDISP30 reloc instead. */ | |
1503 | h->plt.offset = (bfd_vma) -1; | |
252b5132 | 1504 | h->elf_link_hash_flags &= ~ELF_LINK_HASH_NEEDS_PLT; |
252b5132 RH |
1505 | } |
1506 | ||
b34976b6 | 1507 | return TRUE; |
252b5132 | 1508 | } |
b9734f35 JJ |
1509 | else |
1510 | h->plt.offset = (bfd_vma) -1; | |
252b5132 RH |
1511 | |
1512 | /* If this is a weak symbol, and there is a real definition, the | |
1513 | processor independent code will have arranged for us to see the | |
1514 | real definition first, and we can just use the same value. */ | |
1515 | if (h->weakdef != NULL) | |
1516 | { | |
1517 | BFD_ASSERT (h->weakdef->root.type == bfd_link_hash_defined | |
1518 | || h->weakdef->root.type == bfd_link_hash_defweak); | |
1519 | h->root.u.def.section = h->weakdef->root.u.def.section; | |
1520 | h->root.u.def.value = h->weakdef->root.u.def.value; | |
b34976b6 | 1521 | return TRUE; |
252b5132 RH |
1522 | } |
1523 | ||
1524 | /* This is a reference to a symbol defined by a dynamic object which | |
1525 | is not a function. */ | |
1526 | ||
1527 | /* If we are creating a shared library, we must presume that the | |
1528 | only references to the symbol are via the global offset table. | |
1529 | For such cases we need not do anything here; the relocations will | |
1530 | be handled correctly by relocate_section. */ | |
1531 | if (info->shared) | |
b34976b6 | 1532 | return TRUE; |
252b5132 | 1533 | |
7843f00e ILT |
1534 | /* If there are no references to this symbol that do not use the |
1535 | GOT, we don't need to generate a copy reloc. */ | |
1536 | if ((h->elf_link_hash_flags & ELF_LINK_NON_GOT_REF) == 0) | |
b34976b6 | 1537 | return TRUE; |
7843f00e | 1538 | |
b9734f35 JJ |
1539 | eh = (struct elf32_sparc_link_hash_entry *) h; |
1540 | for (p = eh->dyn_relocs; p != NULL; p = p->next) | |
1541 | { | |
1542 | s = p->sec->output_section; | |
1543 | if (s != NULL && (s->flags & SEC_READONLY) != 0) | |
1544 | break; | |
1545 | } | |
1546 | ||
1547 | /* If we didn't find any dynamic relocs in read-only sections, then | |
1548 | we'll be keeping the dynamic relocs and avoiding the copy reloc. */ | |
1549 | if (p == NULL) | |
1550 | { | |
1551 | h->elf_link_hash_flags &= ~ELF_LINK_NON_GOT_REF; | |
1552 | return TRUE; | |
1553 | } | |
1554 | ||
252b5132 RH |
1555 | /* We must allocate the symbol in our .dynbss section, which will |
1556 | become part of the .bss section of the executable. There will be | |
1557 | an entry for this symbol in the .dynsym section. The dynamic | |
1558 | object will contain position independent code, so all references | |
1559 | from the dynamic object to this symbol will go through the global | |
1560 | offset table. The dynamic linker will use the .dynsym entry to | |
1561 | determine the address it must put in the global offset table, so | |
1562 | both the dynamic object and the regular object will refer to the | |
1563 | same memory location for the variable. */ | |
1564 | ||
b9734f35 JJ |
1565 | /* We must generate a R_SPARC_COPY reloc to tell the dynamic linker |
1566 | to copy the initial value out of the dynamic object and into the | |
1567 | runtime process image. We need to remember the offset into the | |
1568 | .rel.bss section we are going to use. */ | |
1569 | if ((h->root.u.def.section->flags & SEC_ALLOC) != 0) | |
1570 | { | |
eea6121a | 1571 | htab->srelbss->size += sizeof (Elf32_External_Rela); |
b9734f35 JJ |
1572 | h->elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_COPY; |
1573 | } | |
1574 | ||
1575 | /* We need to figure out the alignment required for this symbol. I | |
1576 | have no idea how ELF linkers handle this. */ | |
1577 | power_of_two = bfd_log2 (h->size); | |
1578 | if (power_of_two > 3) | |
1579 | power_of_two = 3; | |
1580 | ||
1581 | /* Apply the required alignment. */ | |
1582 | s = htab->sdynbss; | |
eea6121a | 1583 | s->size = BFD_ALIGN (s->size, (bfd_size_type) (1 << power_of_two)); |
b9734f35 JJ |
1584 | if (power_of_two > bfd_get_section_alignment (dynobj, s)) |
1585 | { | |
1586 | if (! bfd_set_section_alignment (dynobj, s, power_of_two)) | |
1587 | return FALSE; | |
1588 | } | |
1589 | ||
1590 | /* Define the symbol as being at this point in the section. */ | |
1591 | h->root.u.def.section = s; | |
eea6121a | 1592 | h->root.u.def.value = s->size; |
b9734f35 JJ |
1593 | |
1594 | /* Increment the section size to make room for the symbol. */ | |
eea6121a | 1595 | s->size += h->size; |
b9734f35 JJ |
1596 | |
1597 | return TRUE; | |
1598 | } | |
1599 | ||
b9734f35 JJ |
1600 | /* Allocate space in .plt, .got and associated reloc sections for |
1601 | dynamic relocs. */ | |
1602 | ||
1603 | static bfd_boolean | |
1604 | allocate_dynrelocs (h, inf) | |
1605 | struct elf_link_hash_entry *h; | |
1606 | PTR inf; | |
1607 | { | |
1608 | struct bfd_link_info *info; | |
1609 | struct elf32_sparc_link_hash_table *htab; | |
1610 | struct elf32_sparc_link_hash_entry *eh; | |
1611 | struct elf32_sparc_dyn_relocs *p; | |
1612 | ||
1613 | if (h->root.type == bfd_link_hash_indirect) | |
1614 | return TRUE; | |
1615 | ||
1616 | if (h->root.type == bfd_link_hash_warning) | |
1617 | /* When warning symbols are created, they **replace** the "real" | |
1618 | entry in the hash table, thus we never get to see the real | |
1619 | symbol in a hash traversal. So look at it now. */ | |
1620 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
1621 | ||
1622 | info = (struct bfd_link_info *) inf; | |
1623 | htab = elf32_sparc_hash_table (info); | |
1624 | ||
1625 | if (htab->elf.dynamic_sections_created | |
1626 | && h->plt.refcount > 0) | |
1627 | { | |
1628 | /* Make sure this symbol is output as a dynamic symbol. | |
1629 | Undefined weak syms won't yet be marked as dynamic. */ | |
1630 | if (h->dynindx == -1 | |
1631 | && (h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) == 0) | |
1632 | { | |
c152c796 | 1633 | if (! bfd_elf_link_record_dynamic_symbol (info, h)) |
b9734f35 JJ |
1634 | return FALSE; |
1635 | } | |
1636 | ||
c152c796 | 1637 | if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, info->shared, h)) |
b9734f35 JJ |
1638 | { |
1639 | asection *s = htab->splt; | |
1640 | ||
1641 | /* The first four entries in .plt are reserved. */ | |
eea6121a AM |
1642 | if (s->size == 0) |
1643 | s->size = 4 * PLT_ENTRY_SIZE; | |
26e41594 | 1644 | |
b9734f35 | 1645 | /* The procedure linkage table has a maximum size. */ |
eea6121a | 1646 | if (s->size >= 0x400000) |
b9734f35 JJ |
1647 | { |
1648 | bfd_set_error (bfd_error_bad_value); | |
1649 | return FALSE; | |
1650 | } | |
1651 | ||
eea6121a | 1652 | h->plt.offset = s->size; |
b9734f35 JJ |
1653 | |
1654 | /* If this symbol is not defined in a regular file, and we are | |
1655 | not generating a shared library, then set the symbol to this | |
1656 | location in the .plt. This is required to make function | |
1657 | pointers compare as equal between the normal executable and | |
1658 | the shared library. */ | |
1659 | if (! info->shared | |
1660 | && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0) | |
1661 | { | |
1662 | h->root.u.def.section = s; | |
1663 | h->root.u.def.value = h->plt.offset; | |
1664 | } | |
1665 | ||
1666 | /* Make room for this entry. */ | |
eea6121a | 1667 | s->size += PLT_ENTRY_SIZE; |
b9734f35 JJ |
1668 | |
1669 | /* We also need to make an entry in the .rela.plt section. */ | |
eea6121a | 1670 | htab->srelplt->size += sizeof (Elf32_External_Rela); |
b9734f35 JJ |
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 | else | |
1679 | { | |
1680 | h->plt.offset = (bfd_vma) -1; | |
1681 | h->elf_link_hash_flags &= ~ELF_LINK_HASH_NEEDS_PLT; | |
1682 | } | |
1683 | ||
1684 | /* If R_SPARC_TLS_IE_{HI22,LO10} symbol is now local to the binary, | |
1685 | make it a R_SPARC_TLS_LE_{HI22,LO10} requiring no TLS entry. */ | |
1686 | if (h->got.refcount > 0 | |
1687 | && !info->shared | |
1688 | && h->dynindx == -1 | |
1689 | && elf32_sparc_hash_entry(h)->tls_type == GOT_TLS_IE) | |
1690 | h->got.offset = (bfd_vma) -1; | |
1691 | else if (h->got.refcount > 0) | |
1692 | { | |
1693 | asection *s; | |
1694 | bfd_boolean dyn; | |
1695 | int tls_type = elf32_sparc_hash_entry(h)->tls_type; | |
1696 | ||
1697 | /* Make sure this symbol is output as a dynamic symbol. | |
1698 | Undefined weak syms won't yet be marked as dynamic. */ | |
1699 | if (h->dynindx == -1 | |
1700 | && (h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) == 0) | |
1701 | { | |
c152c796 | 1702 | if (! bfd_elf_link_record_dynamic_symbol (info, h)) |
b9734f35 JJ |
1703 | return FALSE; |
1704 | } | |
1705 | ||
1706 | s = htab->sgot; | |
eea6121a AM |
1707 | h->got.offset = s->size; |
1708 | s->size += 4; | |
b9734f35 JJ |
1709 | /* R_SPARC_TLS_GD_HI{22,LO10} needs 2 consecutive GOT slots. */ |
1710 | if (tls_type == GOT_TLS_GD) | |
eea6121a | 1711 | s->size += 4; |
b9734f35 JJ |
1712 | dyn = htab->elf.dynamic_sections_created; |
1713 | /* R_SPARC_TLS_IE_{HI22,LO10} needs one dynamic relocation, | |
1714 | R_SPARC_TLS_GD_{HI22,LO10} needs one if local symbol and two if | |
1715 | global. */ | |
1716 | if ((tls_type == GOT_TLS_GD && h->dynindx == -1) | |
1717 | || tls_type == GOT_TLS_IE) | |
eea6121a | 1718 | htab->srelgot->size += sizeof (Elf32_External_Rela); |
b9734f35 | 1719 | else if (tls_type == GOT_TLS_GD) |
eea6121a | 1720 | htab->srelgot->size += 2 * sizeof (Elf32_External_Rela); |
c152c796 | 1721 | else if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared, h)) |
eea6121a | 1722 | htab->srelgot->size += sizeof (Elf32_External_Rela); |
b9734f35 JJ |
1723 | } |
1724 | else | |
1725 | h->got.offset = (bfd_vma) -1; | |
1726 | ||
1727 | eh = (struct elf32_sparc_link_hash_entry *) h; | |
1728 | if (eh->dyn_relocs == NULL) | |
1729 | return TRUE; | |
1730 | ||
1731 | /* In the shared -Bsymbolic case, discard space allocated for | |
1732 | dynamic pc-relative relocs against symbols which turn out to be | |
1733 | defined in regular objects. For the normal shared case, discard | |
1734 | space for pc-relative relocs that have become local due to symbol | |
1735 | visibility changes. */ | |
1736 | ||
1737 | if (info->shared) | |
1738 | { | |
1739 | if ((h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) != 0 | |
1740 | && ((h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) != 0 | |
1741 | || info->symbolic)) | |
1742 | { | |
1743 | struct elf32_sparc_dyn_relocs **pp; | |
1744 | ||
1745 | for (pp = &eh->dyn_relocs; (p = *pp) != NULL; ) | |
1746 | { | |
1747 | p->count -= p->pc_count; | |
1748 | p->pc_count = 0; | |
1749 | if (p->count == 0) | |
1750 | *pp = p->next; | |
1751 | else | |
1752 | pp = &p->next; | |
1753 | } | |
1754 | } | |
1755 | } | |
1756 | else | |
1757 | { | |
1758 | /* For the non-shared case, discard space for relocs against | |
1759 | symbols which turn out to need copy relocs or are not | |
1760 | dynamic. */ | |
1761 | ||
1762 | if ((h->elf_link_hash_flags & ELF_LINK_NON_GOT_REF) == 0 | |
1763 | && (((h->elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC) != 0 | |
1764 | && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0) | |
1765 | || (htab->elf.dynamic_sections_created | |
1766 | && (h->root.type == bfd_link_hash_undefweak | |
1767 | || h->root.type == bfd_link_hash_undefined)))) | |
1768 | { | |
1769 | /* Make sure this symbol is output as a dynamic symbol. | |
1770 | Undefined weak syms won't yet be marked as dynamic. */ | |
1771 | if (h->dynindx == -1 | |
1772 | && (h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) == 0) | |
1773 | { | |
c152c796 | 1774 | if (! bfd_elf_link_record_dynamic_symbol (info, h)) |
b9734f35 JJ |
1775 | return FALSE; |
1776 | } | |
1777 | ||
1778 | /* If that succeeded, we know we'll be keeping all the | |
1779 | relocs. */ | |
1780 | if (h->dynindx != -1) | |
1781 | goto keep; | |
1782 | } | |
252b5132 | 1783 | |
b9734f35 | 1784 | eh->dyn_relocs = NULL; |
252b5132 | 1785 | |
b9734f35 | 1786 | keep: ; |
252b5132 RH |
1787 | } |
1788 | ||
b9734f35 JJ |
1789 | /* Finally, allocate space. */ |
1790 | for (p = eh->dyn_relocs; p != NULL; p = p->next) | |
252b5132 | 1791 | { |
b9734f35 | 1792 | asection *sreloc = elf_section_data (p->sec)->sreloc; |
eea6121a | 1793 | sreloc->size += p->count * sizeof (Elf32_External_Rela); |
252b5132 RH |
1794 | } |
1795 | ||
b9734f35 JJ |
1796 | return TRUE; |
1797 | } | |
252b5132 | 1798 | |
b9734f35 | 1799 | /* Find any dynamic relocs that apply to read-only sections. */ |
252b5132 | 1800 | |
b9734f35 JJ |
1801 | static bfd_boolean |
1802 | readonly_dynrelocs (h, inf) | |
1803 | struct elf_link_hash_entry *h; | |
1804 | PTR inf; | |
1805 | { | |
1806 | struct elf32_sparc_link_hash_entry *eh; | |
1807 | struct elf32_sparc_dyn_relocs *p; | |
1808 | ||
1809 | if (h->root.type == bfd_link_hash_warning) | |
1810 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
1811 | ||
1812 | eh = (struct elf32_sparc_link_hash_entry *) h; | |
1813 | for (p = eh->dyn_relocs; p != NULL; p = p->next) | |
1814 | { | |
1815 | asection *s = p->sec->output_section; | |
1816 | ||
1817 | if (s != NULL && (s->flags & SEC_READONLY) != 0) | |
1818 | { | |
1819 | struct bfd_link_info *info = (struct bfd_link_info *) inf; | |
1820 | ||
1821 | info->flags |= DF_TEXTREL; | |
1822 | ||
1823 | /* Not an error, just cut short the traversal. */ | |
1824 | return FALSE; | |
1825 | } | |
1826 | } | |
b34976b6 | 1827 | return TRUE; |
252b5132 RH |
1828 | } |
1829 | ||
1830 | /* Set the sizes of the dynamic sections. */ | |
1831 | ||
b34976b6 | 1832 | static bfd_boolean |
252b5132 | 1833 | elf32_sparc_size_dynamic_sections (output_bfd, info) |
db6751f2 | 1834 | bfd *output_bfd ATTRIBUTE_UNUSED; |
252b5132 RH |
1835 | struct bfd_link_info *info; |
1836 | { | |
b9734f35 | 1837 | struct elf32_sparc_link_hash_table *htab; |
252b5132 RH |
1838 | bfd *dynobj; |
1839 | asection *s; | |
b9734f35 | 1840 | bfd *ibfd; |
252b5132 | 1841 | |
b9734f35 JJ |
1842 | htab = elf32_sparc_hash_table (info); |
1843 | dynobj = htab->elf.dynobj; | |
252b5132 RH |
1844 | BFD_ASSERT (dynobj != NULL); |
1845 | ||
1846 | if (elf_hash_table (info)->dynamic_sections_created) | |
1847 | { | |
1848 | /* Set the contents of the .interp section to the interpreter. */ | |
36af4a4e | 1849 | if (info->executable) |
252b5132 RH |
1850 | { |
1851 | s = bfd_get_section_by_name (dynobj, ".interp"); | |
1852 | BFD_ASSERT (s != NULL); | |
eea6121a | 1853 | s->size = sizeof ELF_DYNAMIC_INTERPRETER; |
252b5132 RH |
1854 | s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER; |
1855 | } | |
b9734f35 | 1856 | } |
252b5132 | 1857 | |
b9734f35 JJ |
1858 | /* Set up .got offsets for local syms, and space for local dynamic |
1859 | relocs. */ | |
1860 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next) | |
1861 | { | |
1862 | bfd_signed_vma *local_got; | |
1863 | bfd_signed_vma *end_local_got; | |
1864 | char *local_tls_type; | |
1865 | bfd_size_type locsymcount; | |
1866 | Elf_Internal_Shdr *symtab_hdr; | |
1867 | asection *srel; | |
1868 | ||
1869 | if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour) | |
1870 | continue; | |
1871 | ||
1872 | for (s = ibfd->sections; s != NULL; s = s->next) | |
1873 | { | |
1874 | struct elf32_sparc_dyn_relocs *p; | |
1875 | ||
1876 | for (p = *((struct elf32_sparc_dyn_relocs **) | |
1877 | &elf_section_data (s)->local_dynrel); | |
1878 | p != NULL; | |
1879 | p = p->next) | |
1880 | { | |
1881 | if (!bfd_is_abs_section (p->sec) | |
1882 | && bfd_is_abs_section (p->sec->output_section)) | |
1883 | { | |
1884 | /* Input section has been discarded, either because | |
1885 | it is a copy of a linkonce section or due to | |
1886 | linker script /DISCARD/, so we'll be discarding | |
1887 | the relocs too. */ | |
1888 | } | |
1889 | else if (p->count != 0) | |
1890 | { | |
1891 | srel = elf_section_data (p->sec)->sreloc; | |
eea6121a | 1892 | srel->size += p->count * sizeof (Elf32_External_Rela); |
b9734f35 JJ |
1893 | if ((p->sec->output_section->flags & SEC_READONLY) != 0) |
1894 | info->flags |= DF_TEXTREL; | |
1895 | } | |
1896 | } | |
1897 | } | |
1898 | ||
1899 | local_got = elf_local_got_refcounts (ibfd); | |
1900 | if (!local_got) | |
1901 | continue; | |
1902 | ||
1903 | symtab_hdr = &elf_tdata (ibfd)->symtab_hdr; | |
1904 | locsymcount = symtab_hdr->sh_info; | |
1905 | end_local_got = local_got + locsymcount; | |
1906 | local_tls_type = elf32_sparc_local_got_tls_type (ibfd); | |
1907 | s = htab->sgot; | |
1908 | srel = htab->srelgot; | |
1909 | for (; local_got < end_local_got; ++local_got, ++local_tls_type) | |
1910 | { | |
1911 | if (*local_got > 0) | |
1912 | { | |
eea6121a AM |
1913 | *local_got = s->size; |
1914 | s->size += 4; | |
b9734f35 | 1915 | if (*local_tls_type == GOT_TLS_GD) |
eea6121a | 1916 | s->size += 4; |
b9734f35 JJ |
1917 | if (info->shared |
1918 | || *local_tls_type == GOT_TLS_GD | |
1919 | || *local_tls_type == GOT_TLS_IE) | |
eea6121a | 1920 | srel->size += sizeof (Elf32_External_Rela); |
b9734f35 JJ |
1921 | } |
1922 | else | |
1923 | *local_got = (bfd_vma) -1; | |
1924 | } | |
1925 | } | |
1926 | ||
1927 | if (htab->tls_ldm_got.refcount > 0) | |
1928 | { | |
1929 | /* Allocate 2 got entries and 1 dynamic reloc for | |
1930 | R_SPARC_TLS_LDM_{HI22,LO10} relocs. */ | |
eea6121a AM |
1931 | htab->tls_ldm_got.offset = htab->sgot->size; |
1932 | htab->sgot->size += 8; | |
1933 | htab->srelgot->size += sizeof (Elf32_External_Rela); | |
252b5132 RH |
1934 | } |
1935 | else | |
b9734f35 JJ |
1936 | htab->tls_ldm_got.offset = -1; |
1937 | ||
1938 | /* Allocate global sym .plt and .got entries, and space for global | |
1939 | sym dynamic relocs. */ | |
1940 | elf_link_hash_traverse (&htab->elf, allocate_dynrelocs, (PTR) info); | |
1941 | ||
1942 | if (elf_hash_table (info)->dynamic_sections_created) | |
252b5132 | 1943 | { |
b9734f35 | 1944 | /* Make space for the trailing nop in .plt. */ |
eea6121a AM |
1945 | if (htab->splt->size > 0) |
1946 | htab->splt->size += 4; | |
b9734f35 JJ |
1947 | |
1948 | /* If the .got section is more than 0x1000 bytes, we add | |
1949 | 0x1000 to the value of _GLOBAL_OFFSET_TABLE_, so that 13 | |
1950 | bit relocations have a greater chance of working. */ | |
eea6121a | 1951 | if (htab->sgot->size >= 0x1000 |
b9734f35 JJ |
1952 | && elf_hash_table (info)->hgot->root.u.def.value == 0) |
1953 | elf_hash_table (info)->hgot->root.u.def.value = 0x1000; | |
252b5132 RH |
1954 | } |
1955 | ||
1956 | /* The check_relocs and adjust_dynamic_symbol entry points have | |
1957 | determined the sizes of the various dynamic sections. Allocate | |
1958 | memory for them. */ | |
252b5132 RH |
1959 | for (s = dynobj->sections; s != NULL; s = s->next) |
1960 | { | |
1961 | const char *name; | |
b9734f35 | 1962 | bfd_boolean strip = FALSE; |
252b5132 RH |
1963 | |
1964 | if ((s->flags & SEC_LINKER_CREATED) == 0) | |
1965 | continue; | |
1966 | ||
1967 | /* It's OK to base decisions on the section name, because none | |
1968 | of the dynobj section names depend upon the input files. */ | |
1969 | name = bfd_get_section_name (dynobj, s); | |
1970 | ||
252b5132 RH |
1971 | if (strncmp (name, ".rela", 5) == 0) |
1972 | { | |
eea6121a | 1973 | if (s->size == 0) |
252b5132 RH |
1974 | { |
1975 | /* If we don't need this section, strip it from the | |
1976 | output file. This is to handle .rela.bss and | |
1977 | .rel.plt. We must create it in | |
1978 | create_dynamic_sections, because it must be created | |
1979 | before the linker maps input sections to output | |
1980 | sections. The linker does that before | |
1981 | adjust_dynamic_symbol is called, and it is that | |
1982 | function which decides whether anything needs to go | |
1983 | into these sections. */ | |
b34976b6 | 1984 | strip = TRUE; |
252b5132 RH |
1985 | } |
1986 | else | |
1987 | { | |
252b5132 RH |
1988 | /* We use the reloc_count field as a counter if we need |
1989 | to copy relocs into the output file. */ | |
1990 | s->reloc_count = 0; | |
1991 | } | |
1992 | } | |
b9734f35 | 1993 | else if (s != htab->splt && s != htab->sgot) |
252b5132 RH |
1994 | { |
1995 | /* It's not one of our sections, so don't allocate space. */ | |
1996 | continue; | |
1997 | } | |
1998 | ||
1999 | if (strip) | |
2000 | { | |
7f8d5fc9 | 2001 | _bfd_strip_section_from_output (info, s); |
252b5132 RH |
2002 | continue; |
2003 | } | |
2004 | ||
2005 | /* Allocate memory for the section contents. */ | |
7a9af8c4 NC |
2006 | /* FIXME: This should be a call to bfd_alloc not bfd_zalloc. |
2007 | Unused entries should be reclaimed before the section's contents | |
2008 | are written out, but at the moment this does not happen. Thus in | |
2009 | order to prevent writing out garbage, we initialise the section's | |
2010 | contents to zero. */ | |
eea6121a AM |
2011 | s->contents = (bfd_byte *) bfd_zalloc (dynobj, s->size); |
2012 | if (s->contents == NULL && s->size != 0) | |
b34976b6 | 2013 | return FALSE; |
252b5132 RH |
2014 | } |
2015 | ||
2016 | if (elf_hash_table (info)->dynamic_sections_created) | |
2017 | { | |
2018 | /* Add some entries to the .dynamic section. We fill in the | |
2019 | values later, in elf32_sparc_finish_dynamic_sections, but we | |
2020 | must add the entries now so that we get the correct size for | |
2021 | the .dynamic section. The DT_DEBUG entry is filled in by the | |
2022 | dynamic linker and used by the debugger. */ | |
dc810e39 | 2023 | #define add_dynamic_entry(TAG, VAL) \ |
5a580b3a | 2024 | _bfd_elf_add_dynamic_entry (info, TAG, VAL) |
dc810e39 | 2025 | |
36af4a4e | 2026 | if (info->executable) |
252b5132 | 2027 | { |
dc810e39 | 2028 | if (!add_dynamic_entry (DT_DEBUG, 0)) |
b34976b6 | 2029 | return FALSE; |
252b5132 RH |
2030 | } |
2031 | ||
eea6121a | 2032 | if (htab->srelplt->size != 0) |
252b5132 | 2033 | { |
dc810e39 AM |
2034 | if (!add_dynamic_entry (DT_PLTGOT, 0) |
2035 | || !add_dynamic_entry (DT_PLTRELSZ, 0) | |
2036 | || !add_dynamic_entry (DT_PLTREL, DT_RELA) | |
2037 | || !add_dynamic_entry (DT_JMPREL, 0)) | |
b34976b6 | 2038 | return FALSE; |
252b5132 RH |
2039 | } |
2040 | ||
dc810e39 AM |
2041 | if (!add_dynamic_entry (DT_RELA, 0) |
2042 | || !add_dynamic_entry (DT_RELASZ, 0) | |
2043 | || !add_dynamic_entry (DT_RELAENT, sizeof (Elf32_External_Rela))) | |
b34976b6 | 2044 | return FALSE; |
252b5132 | 2045 | |
b9734f35 JJ |
2046 | /* If any dynamic relocs apply to a read-only section, |
2047 | then we need a DT_TEXTREL entry. */ | |
2048 | if ((info->flags & DF_TEXTREL) == 0) | |
2049 | elf_link_hash_traverse (&htab->elf, readonly_dynrelocs, | |
2050 | (PTR) info); | |
2051 | ||
db6751f2 | 2052 | if (info->flags & DF_TEXTREL) |
252b5132 | 2053 | { |
dc810e39 | 2054 | if (!add_dynamic_entry (DT_TEXTREL, 0)) |
b34976b6 | 2055 | return FALSE; |
252b5132 RH |
2056 | } |
2057 | } | |
dc810e39 | 2058 | #undef add_dynamic_entry |
252b5132 | 2059 | |
b34976b6 | 2060 | return TRUE; |
252b5132 RH |
2061 | } |
2062 | ||
f0abc2a1 AM |
2063 | struct elf32_sparc_section_data |
2064 | { | |
2065 | struct bfd_elf_section_data elf; | |
2066 | unsigned int do_relax; | |
2067 | }; | |
2068 | ||
2069 | #define sec_do_relax(sec) \ | |
68bfbfcc | 2070 | ((struct elf32_sparc_section_data *) elf_section_data (sec))->do_relax |
f0abc2a1 AM |
2071 | |
2072 | static bfd_boolean | |
2073 | elf32_sparc_new_section_hook (abfd, sec) | |
2074 | bfd *abfd; | |
2075 | asection *sec; | |
2076 | { | |
2077 | struct elf32_sparc_section_data *sdata; | |
2078 | bfd_size_type amt = sizeof (*sdata); | |
2079 | ||
2080 | sdata = (struct elf32_sparc_section_data *) bfd_zalloc (abfd, amt); | |
2081 | if (sdata == NULL) | |
2082 | return FALSE; | |
2083 | sec->used_by_bfd = (PTR) sdata; | |
2084 | ||
2085 | return _bfd_elf_new_section_hook (abfd, sec); | |
2086 | } | |
f7775d95 | 2087 | |
b34976b6 | 2088 | static bfd_boolean |
f7775d95 JJ |
2089 | elf32_sparc_relax_section (abfd, section, link_info, again) |
2090 | bfd *abfd ATTRIBUTE_UNUSED; | |
2091 | asection *section ATTRIBUTE_UNUSED; | |
2092 | struct bfd_link_info *link_info ATTRIBUTE_UNUSED; | |
b34976b6 | 2093 | bfd_boolean *again; |
f7775d95 | 2094 | { |
b34976b6 | 2095 | *again = FALSE; |
f0abc2a1 | 2096 | sec_do_relax (section) = 1; |
b34976b6 | 2097 | return TRUE; |
f7775d95 JJ |
2098 | } |
2099 | ||
b9734f35 JJ |
2100 | /* Return the base VMA address which should be subtracted from real addresses |
2101 | when resolving @dtpoff relocation. | |
2102 | This is PT_TLS segment p_vaddr. */ | |
2103 | ||
2104 | static bfd_vma | |
2105 | dtpoff_base (info) | |
2106 | struct bfd_link_info *info; | |
2107 | { | |
e1918d23 AM |
2108 | /* If tls_sec is NULL, we should have signalled an error already. */ |
2109 | if (elf_hash_table (info)->tls_sec == NULL) | |
b9734f35 | 2110 | return 0; |
e1918d23 | 2111 | return elf_hash_table (info)->tls_sec->vma; |
b9734f35 JJ |
2112 | } |
2113 | ||
2114 | /* Return the relocation value for @tpoff relocation | |
2115 | if STT_TLS virtual address is ADDRESS. */ | |
2116 | ||
2117 | static bfd_vma | |
2118 | tpoff (info, address) | |
2119 | struct bfd_link_info *info; | |
2120 | bfd_vma address; | |
2121 | { | |
e1918d23 | 2122 | struct elf_link_hash_table *htab = elf_hash_table (info); |
b9734f35 | 2123 | |
e1918d23 AM |
2124 | /* If tls_sec is NULL, we should have signalled an error already. */ |
2125 | if (htab->tls_sec == NULL) | |
b9734f35 | 2126 | return 0; |
e1918d23 | 2127 | return address - htab->tls_size - htab->tls_sec->vma; |
b9734f35 | 2128 | } |
e36f7d53 | 2129 | |
252b5132 RH |
2130 | /* Relocate a SPARC ELF section. */ |
2131 | ||
b34976b6 | 2132 | static bfd_boolean |
252b5132 RH |
2133 | elf32_sparc_relocate_section (output_bfd, info, input_bfd, input_section, |
2134 | contents, relocs, local_syms, local_sections) | |
2135 | bfd *output_bfd; | |
2136 | struct bfd_link_info *info; | |
2137 | bfd *input_bfd; | |
2138 | asection *input_section; | |
2139 | bfd_byte *contents; | |
2140 | Elf_Internal_Rela *relocs; | |
2141 | Elf_Internal_Sym *local_syms; | |
2142 | asection **local_sections; | |
2143 | { | |
b9734f35 | 2144 | struct elf32_sparc_link_hash_table *htab; |
252b5132 RH |
2145 | Elf_Internal_Shdr *symtab_hdr; |
2146 | struct elf_link_hash_entry **sym_hashes; | |
2147 | bfd_vma *local_got_offsets; | |
2148 | bfd_vma got_base; | |
252b5132 RH |
2149 | asection *sreloc; |
2150 | Elf_Internal_Rela *rel; | |
2151 | Elf_Internal_Rela *relend; | |
2152 | ||
1049f94e | 2153 | if (info->relocatable) |
b34976b6 | 2154 | return TRUE; |
f0fe0e16 | 2155 | |
b9734f35 | 2156 | htab = elf32_sparc_hash_table (info); |
252b5132 RH |
2157 | symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr; |
2158 | sym_hashes = elf_sym_hashes (input_bfd); | |
2159 | local_got_offsets = elf_local_got_offsets (input_bfd); | |
2160 | ||
2161 | if (elf_hash_table (info)->hgot == NULL) | |
2162 | got_base = 0; | |
2163 | else | |
2164 | got_base = elf_hash_table (info)->hgot->root.u.def.value; | |
2165 | ||
b9734f35 | 2166 | sreloc = elf_section_data (input_section)->sreloc; |
252b5132 RH |
2167 | |
2168 | rel = relocs; | |
2169 | relend = relocs + input_section->reloc_count; | |
2170 | for (; rel < relend; rel++) | |
2171 | { | |
b9734f35 | 2172 | int r_type, tls_type; |
252b5132 RH |
2173 | reloc_howto_type *howto; |
2174 | unsigned long r_symndx; | |
2175 | struct elf_link_hash_entry *h; | |
2176 | Elf_Internal_Sym *sym; | |
2177 | asection *sec; | |
e36f7d53 | 2178 | bfd_vma relocation, off; |
252b5132 | 2179 | bfd_reloc_status_type r; |
b34976b6 AM |
2180 | bfd_boolean is_plt = FALSE; |
2181 | bfd_boolean unresolved_reloc; | |
252b5132 RH |
2182 | |
2183 | r_type = ELF32_R_TYPE (rel->r_info); | |
2184 | ||
435b1e90 | 2185 | if (r_type == R_SPARC_GNU_VTINHERIT |
26e41594 AM |
2186 | || r_type == R_SPARC_GNU_VTENTRY) |
2187 | continue; | |
252b5132 | 2188 | |
60dac299 | 2189 | if (r_type < 0 || r_type >= (int) R_SPARC_max_std) |
252b5132 RH |
2190 | { |
2191 | bfd_set_error (bfd_error_bad_value); | |
b34976b6 | 2192 | return FALSE; |
252b5132 RH |
2193 | } |
2194 | howto = _bfd_sparc_elf_howto_table + r_type; | |
2195 | ||
252b5132 | 2196 | /* This is a final link. */ |
f0fe0e16 | 2197 | r_symndx = ELF32_R_SYM (rel->r_info); |
252b5132 RH |
2198 | h = NULL; |
2199 | sym = NULL; | |
2200 | sec = NULL; | |
b34976b6 | 2201 | unresolved_reloc = FALSE; |
252b5132 RH |
2202 | if (r_symndx < symtab_hdr->sh_info) |
2203 | { | |
2204 | sym = local_syms + r_symndx; | |
2205 | sec = local_sections[r_symndx]; | |
8517fae7 | 2206 | relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel); |
252b5132 RH |
2207 | } |
2208 | else | |
2209 | { | |
560e09e9 | 2210 | bfd_boolean warned ATTRIBUTE_UNUSED; |
e36f7d53 | 2211 | |
b2a8e766 AM |
2212 | RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel, |
2213 | r_symndx, symtab_hdr, sym_hashes, | |
2214 | h, sec, relocation, | |
2215 | unresolved_reloc, warned); | |
252b5132 RH |
2216 | } |
2217 | ||
2218 | switch (r_type) | |
2219 | { | |
2220 | case R_SPARC_GOT10: | |
2221 | case R_SPARC_GOT13: | |
2222 | case R_SPARC_GOT22: | |
2223 | /* Relocation is to the entry for this symbol in the global | |
26e41594 | 2224 | offset table. */ |
b9734f35 JJ |
2225 | if (htab->sgot == NULL) |
2226 | abort (); | |
252b5132 RH |
2227 | |
2228 | if (h != NULL) | |
2229 | { | |
b34976b6 | 2230 | bfd_boolean dyn; |
252b5132 RH |
2231 | |
2232 | off = h->got.offset; | |
2233 | BFD_ASSERT (off != (bfd_vma) -1); | |
e36f7d53 | 2234 | dyn = elf_hash_table (info)->dynamic_sections_created; |
252b5132 | 2235 | |
c152c796 | 2236 | if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared, h) |
252b5132 | 2237 | || (info->shared |
e36f7d53 RH |
2238 | && (info->symbolic |
2239 | || h->dynindx == -1 | |
2240 | || (h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL)) | |
252b5132 RH |
2241 | && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR))) |
2242 | { | |
2243 | /* This is actually a static link, or it is a | |
26e41594 AM |
2244 | -Bsymbolic link and the symbol is defined |
2245 | locally, or the symbol was forced to be local | |
2246 | because of a version file. We must initialize | |
2247 | this entry in the global offset table. Since the | |
2248 | offset must always be a multiple of 4, we use the | |
2249 | least significant bit to record whether we have | |
2250 | initialized it already. | |
252b5132 RH |
2251 | |
2252 | When doing a dynamic link, we create a .rela.got | |
2253 | relocation entry to initialize the value. This | |
2254 | is done in the finish_dynamic_symbol routine. */ | |
2255 | if ((off & 1) != 0) | |
2256 | off &= ~1; | |
2257 | else | |
2258 | { | |
2259 | bfd_put_32 (output_bfd, relocation, | |
b9734f35 | 2260 | htab->sgot->contents + off); |
252b5132 RH |
2261 | h->got.offset |= 1; |
2262 | } | |
2263 | } | |
e36f7d53 | 2264 | else |
b34976b6 | 2265 | unresolved_reloc = FALSE; |
252b5132 RH |
2266 | } |
2267 | else | |
2268 | { | |
252b5132 RH |
2269 | BFD_ASSERT (local_got_offsets != NULL |
2270 | && local_got_offsets[r_symndx] != (bfd_vma) -1); | |
2271 | ||
2272 | off = local_got_offsets[r_symndx]; | |
2273 | ||
2274 | /* The offset must always be a multiple of 4. We use | |
2275 | the least significant bit to record whether we have | |
2276 | already processed this entry. */ | |
2277 | if ((off & 1) != 0) | |
2278 | off &= ~1; | |
2279 | else | |
2280 | { | |
252b5132 RH |
2281 | |
2282 | if (info->shared) | |
2283 | { | |
b34976b6 | 2284 | asection *s; |
252b5132 | 2285 | Elf_Internal_Rela outrel; |
b34976b6 | 2286 | bfd_byte *loc; |
252b5132 RH |
2287 | |
2288 | /* We need to generate a R_SPARC_RELATIVE reloc | |
2289 | for the dynamic linker. */ | |
b9734f35 | 2290 | s = htab->srelgot; |
b34976b6 | 2291 | BFD_ASSERT (s != NULL); |
252b5132 | 2292 | |
b9734f35 JJ |
2293 | outrel.r_offset = (htab->sgot->output_section->vma |
2294 | + htab->sgot->output_offset | |
252b5132 RH |
2295 | + off); |
2296 | outrel.r_info = ELF32_R_INFO (0, R_SPARC_RELATIVE); | |
6b3ac709 JJ |
2297 | outrel.r_addend = relocation; |
2298 | relocation = 0; | |
b34976b6 AM |
2299 | loc = s->contents; |
2300 | loc += s->reloc_count++ * sizeof (Elf32_External_Rela); | |
2301 | bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc); | |
252b5132 RH |
2302 | } |
2303 | ||
b9734f35 JJ |
2304 | bfd_put_32 (output_bfd, relocation, |
2305 | htab->sgot->contents + off); | |
252b5132 RH |
2306 | local_got_offsets[r_symndx] |= 1; |
2307 | } | |
252b5132 | 2308 | } |
b9734f35 | 2309 | relocation = htab->sgot->output_offset + off - got_base; |
252b5132 RH |
2310 | break; |
2311 | ||
bd5e6e7e JJ |
2312 | case R_SPARC_PLT32: |
2313 | if (h == NULL || h->plt.offset == (bfd_vma) -1) | |
2314 | { | |
2315 | r_type = R_SPARC_32; | |
2316 | goto r_sparc_plt32; | |
2317 | } | |
2318 | /* Fall through. */ | |
252b5132 | 2319 | case R_SPARC_WPLT30: |
b9734f35 | 2320 | r_sparc_wplt30: |
252b5132 | 2321 | /* Relocation is to the entry for this symbol in the |
26e41594 | 2322 | procedure linkage table. */ |
252b5132 RH |
2323 | |
2324 | /* The Solaris native assembler will generate a WPLT30 reloc | |
2325 | for a local symbol if you assemble a call from one | |
2326 | section to another when using -K pic. We treat it as | |
2327 | WDISP30. */ | |
2328 | if (h == NULL) | |
2329 | break; | |
2330 | ||
6de00a78 | 2331 | if (h->plt.offset == (bfd_vma) -1 || htab->splt == NULL) |
252b5132 RH |
2332 | { |
2333 | /* We didn't make a PLT entry for this symbol. This | |
26e41594 AM |
2334 | happens when statically linking PIC code, or when |
2335 | using -Bsymbolic. */ | |
252b5132 RH |
2336 | break; |
2337 | } | |
2338 | ||
b9734f35 JJ |
2339 | relocation = (htab->splt->output_section->vma |
2340 | + htab->splt->output_offset | |
252b5132 | 2341 | + h->plt.offset); |
b34976b6 | 2342 | unresolved_reloc = FALSE; |
bd5e6e7e JJ |
2343 | if (r_type == R_SPARC_PLT32) |
2344 | { | |
2345 | r_type = R_SPARC_32; | |
b34976b6 | 2346 | is_plt = TRUE; |
bd5e6e7e JJ |
2347 | goto r_sparc_plt32; |
2348 | } | |
252b5132 RH |
2349 | break; |
2350 | ||
2351 | case R_SPARC_PC10: | |
2352 | case R_SPARC_PC22: | |
2353 | if (h != NULL | |
2354 | && strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0) | |
2355 | break; | |
2356 | /* Fall through. */ | |
2357 | case R_SPARC_DISP8: | |
2358 | case R_SPARC_DISP16: | |
2359 | case R_SPARC_DISP32: | |
2360 | case R_SPARC_WDISP30: | |
2361 | case R_SPARC_WDISP22: | |
2362 | case R_SPARC_WDISP19: | |
2363 | case R_SPARC_WDISP16: | |
252b5132 RH |
2364 | case R_SPARC_8: |
2365 | case R_SPARC_16: | |
2366 | case R_SPARC_32: | |
2367 | case R_SPARC_HI22: | |
2368 | case R_SPARC_22: | |
2369 | case R_SPARC_13: | |
2370 | case R_SPARC_LO10: | |
0f2712ed | 2371 | case R_SPARC_UA16: |
252b5132 | 2372 | case R_SPARC_UA32: |
bd5e6e7e | 2373 | r_sparc_plt32: |
b9734f35 JJ |
2374 | /* r_symndx will be zero only for relocs against symbols |
2375 | from removed linkonce sections, or sections discarded by | |
2376 | a linker script. */ | |
2377 | if (r_symndx == 0 | |
2378 | || (input_section->flags & SEC_ALLOC) == 0) | |
2379 | break; | |
2380 | ||
2381 | if ((info->shared | |
4dc570c2 JJ |
2382 | && (h == NULL |
2383 | || ELF_ST_VISIBILITY (h->other) == STV_DEFAULT | |
2384 | || h->root.type != bfd_link_hash_undefweak) | |
b9734f35 JJ |
2385 | && (! howto->pc_relative |
2386 | || (h != NULL | |
2387 | && h->dynindx != -1 | |
2388 | && (! info->symbolic | |
2389 | || (h->elf_link_hash_flags | |
2390 | & ELF_LINK_HASH_DEF_REGULAR) == 0)))) | |
2391 | || (!info->shared | |
2392 | && h != NULL | |
2393 | && h->dynindx != -1 | |
2394 | && (h->elf_link_hash_flags & ELF_LINK_NON_GOT_REF) == 0 | |
2395 | && (((h->elf_link_hash_flags | |
2396 | & ELF_LINK_HASH_DEF_DYNAMIC) != 0 | |
2397 | && (h->elf_link_hash_flags | |
2398 | & ELF_LINK_HASH_DEF_REGULAR) == 0) | |
2399 | || h->root.type == bfd_link_hash_undefweak | |
2400 | || h->root.type == bfd_link_hash_undefined))) | |
252b5132 RH |
2401 | { |
2402 | Elf_Internal_Rela outrel; | |
b34976b6 AM |
2403 | bfd_byte *loc; |
2404 | bfd_boolean skip, relocate = FALSE; | |
252b5132 RH |
2405 | |
2406 | /* When generating a shared object, these relocations | |
26e41594 AM |
2407 | are copied into the output file to be resolved at run |
2408 | time. */ | |
252b5132 | 2409 | |
b9734f35 | 2410 | BFD_ASSERT (sreloc != NULL); |
252b5132 | 2411 | |
b34976b6 | 2412 | skip = FALSE; |
252b5132 | 2413 | |
c629eae0 JJ |
2414 | outrel.r_offset = |
2415 | _bfd_elf_section_offset (output_bfd, info, input_section, | |
2416 | rel->r_offset); | |
2417 | if (outrel.r_offset == (bfd_vma) -1) | |
b34976b6 | 2418 | skip = TRUE; |
0bb2d96a | 2419 | else if (outrel.r_offset == (bfd_vma) -2) |
b34976b6 | 2420 | skip = TRUE, relocate = TRUE; |
252b5132 RH |
2421 | outrel.r_offset += (input_section->output_section->vma |
2422 | + input_section->output_offset); | |
2423 | ||
20278fa3 JJ |
2424 | /* Optimize unaligned reloc usage now that we know where |
2425 | it finally resides. */ | |
2426 | switch (r_type) | |
2427 | { | |
2428 | case R_SPARC_16: | |
2429 | if (outrel.r_offset & 1) | |
2430 | r_type = R_SPARC_UA16; | |
2431 | break; | |
2432 | case R_SPARC_UA16: | |
2433 | if (!(outrel.r_offset & 1)) | |
2434 | r_type = R_SPARC_16; | |
2435 | break; | |
2436 | case R_SPARC_32: | |
2437 | if (outrel.r_offset & 3) | |
2438 | r_type = R_SPARC_UA32; | |
2439 | break; | |
2440 | case R_SPARC_UA32: | |
2441 | if (!(outrel.r_offset & 3)) | |
2442 | r_type = R_SPARC_32; | |
2443 | break; | |
b88a866a JJ |
2444 | case R_SPARC_DISP8: |
2445 | case R_SPARC_DISP16: | |
2446 | case R_SPARC_DISP32: | |
2447 | /* If the symbol is not dynamic, we should not keep | |
2448 | a dynamic relocation. But an .rela.* slot has been | |
2449 | allocated for it, output R_SPARC_NONE. | |
2450 | FIXME: Add code tracking needed dynamic relocs as | |
2451 | e.g. i386 has. */ | |
2452 | if (h->dynindx == -1) | |
b34976b6 | 2453 | skip = TRUE, relocate = TRUE; |
b88a866a | 2454 | break; |
20278fa3 JJ |
2455 | } |
2456 | ||
252b5132 RH |
2457 | if (skip) |
2458 | memset (&outrel, 0, sizeof outrel); | |
2459 | /* h->dynindx may be -1 if the symbol was marked to | |
26e41594 | 2460 | become local. */ |
bd5e6e7e | 2461 | else if (h != NULL && ! is_plt |
252b5132 RH |
2462 | && ((! info->symbolic && h->dynindx != -1) |
2463 | || (h->elf_link_hash_flags | |
2464 | & ELF_LINK_HASH_DEF_REGULAR) == 0)) | |
2465 | { | |
2466 | BFD_ASSERT (h->dynindx != -1); | |
2467 | outrel.r_info = ELF32_R_INFO (h->dynindx, r_type); | |
2468 | outrel.r_addend = rel->r_addend; | |
2469 | } | |
2470 | else | |
2471 | { | |
1fbc4a84 | 2472 | if (r_type == R_SPARC_32) |
252b5132 RH |
2473 | { |
2474 | outrel.r_info = ELF32_R_INFO (0, R_SPARC_RELATIVE); | |
2475 | outrel.r_addend = relocation + rel->r_addend; | |
2476 | } | |
2477 | else | |
2478 | { | |
2479 | long indx; | |
2480 | ||
bd5e6e7e | 2481 | if (is_plt) |
b9734f35 | 2482 | sec = htab->splt; |
8517fae7 AM |
2483 | |
2484 | if (bfd_is_abs_section (sec)) | |
252b5132 RH |
2485 | indx = 0; |
2486 | else if (sec == NULL || sec->owner == NULL) | |
2487 | { | |
2488 | bfd_set_error (bfd_error_bad_value); | |
b34976b6 | 2489 | return FALSE; |
252b5132 RH |
2490 | } |
2491 | else | |
2492 | { | |
2493 | asection *osec; | |
2494 | ||
2495 | osec = sec->output_section; | |
2496 | indx = elf_section_data (osec)->dynindx; | |
2497 | ||
2498 | /* FIXME: we really should be able to link non-pic | |
2499 | shared libraries. */ | |
2500 | if (indx == 0) | |
2501 | { | |
2502 | BFD_FAIL (); | |
2503 | (*_bfd_error_handler) | |
2504 | (_("%s: probably compiled without -fPIC?"), | |
8f615d07 | 2505 | bfd_archive_filename (input_bfd)); |
252b5132 | 2506 | bfd_set_error (bfd_error_bad_value); |
b34976b6 | 2507 | return FALSE; |
252b5132 RH |
2508 | } |
2509 | } | |
2510 | ||
2511 | outrel.r_info = ELF32_R_INFO (indx, r_type); | |
840a9995 | 2512 | outrel.r_addend = relocation + rel->r_addend; |
252b5132 RH |
2513 | } |
2514 | } | |
2515 | ||
b34976b6 AM |
2516 | loc = sreloc->contents; |
2517 | loc += sreloc->reloc_count++ * sizeof (Elf32_External_Rela); | |
2518 | bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc); | |
252b5132 RH |
2519 | |
2520 | /* This reloc will be computed at runtime, so there's no | |
26e41594 | 2521 | need to do anything now. */ |
0bb2d96a JJ |
2522 | if (! relocate) |
2523 | continue; | |
252b5132 RH |
2524 | } |
2525 | break; | |
2526 | ||
b9734f35 JJ |
2527 | case R_SPARC_TLS_GD_HI22: |
2528 | if (! elf32_sparc_tdata (input_bfd)->has_tlsgd) | |
2529 | { | |
2530 | /* R_SPARC_REV32 used the same reloc number as | |
2531 | R_SPARC_TLS_GD_HI22. */ | |
2532 | r_type = R_SPARC_REV32; | |
2533 | break; | |
2534 | } | |
2535 | /* Fall through */ | |
2536 | ||
2537 | case R_SPARC_TLS_GD_LO10: | |
2538 | case R_SPARC_TLS_IE_HI22: | |
2539 | case R_SPARC_TLS_IE_LO10: | |
2540 | r_type = elf32_sparc_tls_transition (info, input_bfd, r_type, | |
2541 | h == NULL); | |
2542 | tls_type = GOT_UNKNOWN; | |
2543 | if (h == NULL && local_got_offsets) | |
2544 | tls_type = elf32_sparc_local_got_tls_type (input_bfd) [r_symndx]; | |
2545 | else if (h != NULL) | |
2546 | { | |
2547 | tls_type = elf32_sparc_hash_entry(h)->tls_type; | |
2548 | if (!info->shared && h->dynindx == -1 && tls_type == GOT_TLS_IE) | |
2549 | switch (ELF32_R_TYPE (rel->r_info)) | |
2550 | { | |
2551 | case R_SPARC_TLS_GD_HI22: | |
2552 | case R_SPARC_TLS_IE_HI22: | |
2553 | r_type = R_SPARC_TLS_LE_HIX22; | |
2554 | break; | |
2555 | default: | |
2556 | r_type = R_SPARC_TLS_LE_LOX10; | |
2557 | break; | |
2558 | } | |
2559 | } | |
2560 | if (tls_type == GOT_TLS_IE) | |
2561 | switch (r_type) | |
2562 | { | |
2563 | case R_SPARC_TLS_GD_HI22: | |
2564 | r_type = R_SPARC_TLS_IE_HI22; | |
2565 | break; | |
2566 | case R_SPARC_TLS_GD_LO10: | |
2567 | r_type = R_SPARC_TLS_IE_LO10; | |
2568 | break; | |
2569 | } | |
2570 | ||
2571 | if (r_type == R_SPARC_TLS_LE_HIX22) | |
2572 | { | |
2573 | relocation = tpoff (info, relocation); | |
2574 | break; | |
2575 | } | |
2576 | if (r_type == R_SPARC_TLS_LE_LOX10) | |
2577 | { | |
2578 | /* Change add into xor. */ | |
2579 | relocation = tpoff (info, relocation); | |
2580 | bfd_put_32 (output_bfd, (bfd_get_32 (input_bfd, | |
2581 | contents + rel->r_offset) | |
2582 | | 0x80182000), contents + rel->r_offset); | |
2583 | break; | |
2584 | } | |
2585 | ||
26e41594 | 2586 | if (h != NULL) |
b9734f35 JJ |
2587 | { |
2588 | off = h->got.offset; | |
2589 | h->got.offset |= 1; | |
2590 | } | |
2591 | else | |
2592 | { | |
2593 | BFD_ASSERT (local_got_offsets != NULL); | |
2594 | off = local_got_offsets[r_symndx]; | |
2595 | local_got_offsets[r_symndx] |= 1; | |
2596 | } | |
26e41594 | 2597 | |
b9734f35 JJ |
2598 | r_sparc_tlsldm: |
2599 | if (htab->sgot == NULL) | |
2600 | abort (); | |
2601 | ||
2602 | if ((off & 1) != 0) | |
2603 | off &= ~1; | |
26e41594 | 2604 | else |
b9734f35 JJ |
2605 | { |
2606 | Elf_Internal_Rela outrel; | |
2607 | Elf32_External_Rela *loc; | |
2608 | int dr_type, indx; | |
2609 | ||
2610 | if (htab->srelgot == NULL) | |
2611 | abort (); | |
2612 | ||
2613 | bfd_put_32 (output_bfd, 0, htab->sgot->contents + off); | |
2614 | outrel.r_offset = (htab->sgot->output_section->vma | |
2615 | + htab->sgot->output_offset + off); | |
2616 | indx = h && h->dynindx != -1 ? h->dynindx : 0; | |
2617 | if (r_type == R_SPARC_TLS_IE_HI22 | |
2618 | || r_type == R_SPARC_TLS_IE_LO10) | |
2619 | dr_type = R_SPARC_TLS_TPOFF32; | |
2620 | else | |
2621 | dr_type = R_SPARC_TLS_DTPMOD32; | |
2622 | if (dr_type == R_SPARC_TLS_TPOFF32 && indx == 0) | |
2623 | outrel.r_addend = relocation - dtpoff_base (info); | |
2624 | else | |
2625 | outrel.r_addend = 0; | |
2626 | outrel.r_info = ELF32_R_INFO (indx, dr_type); | |
2627 | loc = (Elf32_External_Rela *) htab->srelgot->contents; | |
2628 | loc += htab->srelgot->reloc_count++; | |
2629 | bfd_elf32_swap_reloca_out (output_bfd, &outrel, | |
2630 | (bfd_byte *) loc); | |
2631 | ||
2632 | if (r_type == R_SPARC_TLS_GD_HI22 | |
2633 | || r_type == R_SPARC_TLS_GD_LO10) | |
2634 | { | |
2635 | if (indx == 0) | |
2636 | { | |
2637 | BFD_ASSERT (! unresolved_reloc); | |
2638 | bfd_put_32 (output_bfd, | |
2639 | relocation - dtpoff_base (info), | |
2640 | htab->sgot->contents + off + 4); | |
2641 | } | |
2642 | else | |
2643 | { | |
2644 | bfd_put_32 (output_bfd, 0, | |
2645 | htab->sgot->contents + off + 4); | |
2646 | outrel.r_info = ELF32_R_INFO (indx, | |
2647 | R_SPARC_TLS_DTPOFF32); | |
2648 | outrel.r_offset += 4; | |
2649 | htab->srelgot->reloc_count++; | |
2650 | loc++; | |
2651 | bfd_elf32_swap_reloca_out (output_bfd, &outrel, | |
2652 | (bfd_byte *) loc); | |
2653 | } | |
2654 | } | |
2655 | else if (dr_type == R_SPARC_TLS_DTPMOD32) | |
2656 | { | |
2657 | bfd_put_32 (output_bfd, 0, | |
2658 | htab->sgot->contents + off + 4); | |
2659 | } | |
2660 | } | |
2661 | ||
2662 | if (off >= (bfd_vma) -2) | |
2663 | abort (); | |
2664 | ||
2665 | relocation = htab->sgot->output_offset + off - got_base; | |
2666 | unresolved_reloc = FALSE; | |
2667 | howto = _bfd_sparc_elf_howto_table + r_type; | |
2668 | break; | |
2669 | ||
2670 | case R_SPARC_TLS_LDM_HI22: | |
2671 | case R_SPARC_TLS_LDM_LO10: | |
2672 | if (! info->shared) | |
2673 | { | |
2674 | bfd_put_32 (output_bfd, SPARC_NOP, contents + rel->r_offset); | |
2675 | continue; | |
2676 | } | |
2677 | off = htab->tls_ldm_got.offset; | |
2678 | htab->tls_ldm_got.offset |= 1; | |
2679 | goto r_sparc_tlsldm; | |
2680 | ||
2681 | case R_SPARC_TLS_LDO_HIX22: | |
2682 | case R_SPARC_TLS_LDO_LOX10: | |
2683 | if (info->shared) | |
2684 | relocation -= dtpoff_base (info); | |
2685 | else | |
2686 | relocation = tpoff (info, relocation); | |
2687 | break; | |
2688 | ||
2689 | case R_SPARC_TLS_LE_HIX22: | |
2690 | case R_SPARC_TLS_LE_LOX10: | |
2691 | if (info->shared) | |
2692 | { | |
2693 | Elf_Internal_Rela outrel; | |
2694 | bfd_boolean skip, relocate = FALSE; | |
2695 | ||
2696 | BFD_ASSERT (sreloc != NULL); | |
2697 | skip = FALSE; | |
2698 | outrel.r_offset = | |
2699 | _bfd_elf_section_offset (output_bfd, info, input_section, | |
2700 | rel->r_offset); | |
2701 | if (outrel.r_offset == (bfd_vma) -1) | |
2702 | skip = TRUE; | |
2703 | else if (outrel.r_offset == (bfd_vma) -2) | |
2704 | skip = TRUE, relocate = TRUE; | |
2705 | outrel.r_offset += (input_section->output_section->vma | |
2706 | + input_section->output_offset); | |
2707 | if (skip) | |
2708 | memset (&outrel, 0, sizeof outrel); | |
2709 | else | |
2710 | { | |
2711 | outrel.r_info = ELF32_R_INFO (0, r_type); | |
2712 | outrel.r_addend = relocation - dtpoff_base (info) | |
2713 | + rel->r_addend; | |
2714 | } | |
2715 | ||
2716 | bfd_elf32_swap_reloca_out (output_bfd, &outrel, | |
2717 | (bfd_byte *) (((Elf32_External_Rela *) | |
2718 | sreloc->contents) | |
2719 | + sreloc->reloc_count)); | |
2720 | ++sreloc->reloc_count; | |
2721 | continue; | |
2722 | } | |
2723 | relocation = tpoff (info, relocation); | |
2724 | break; | |
2725 | ||
2726 | case R_SPARC_TLS_LDM_CALL: | |
2727 | if (! info->shared) | |
2728 | { | |
2729 | /* mov %g0, %o0 */ | |
2730 | bfd_put_32 (output_bfd, 0x90100000, contents + rel->r_offset); | |
2731 | continue; | |
2732 | } | |
2733 | /* Fall through */ | |
2734 | ||
2735 | case R_SPARC_TLS_GD_CALL: | |
2736 | tls_type = GOT_UNKNOWN; | |
2737 | if (h == NULL && local_got_offsets) | |
2738 | tls_type = elf32_sparc_local_got_tls_type (input_bfd) [r_symndx]; | |
2739 | else if (h != NULL) | |
2740 | tls_type = elf32_sparc_hash_entry(h)->tls_type; | |
2741 | if (! info->shared | |
2742 | || (r_type == R_SPARC_TLS_GD_CALL && tls_type == GOT_TLS_IE)) | |
2743 | { | |
2744 | bfd_vma insn; | |
2745 | ||
2746 | if (!info->shared && (h == NULL || h->dynindx == -1)) | |
2747 | { | |
2748 | /* GD -> LE */ | |
2749 | bfd_put_32 (output_bfd, SPARC_NOP, contents + rel->r_offset); | |
2750 | continue; | |
2751 | } | |
2752 | ||
2753 | /* GD -> IE */ | |
2754 | if (rel + 1 < relend | |
2755 | && ELF32_R_TYPE (rel[1].r_info) == R_SPARC_TLS_GD_ADD | |
2756 | && rel[1].r_offset == rel->r_offset + 4 | |
2757 | && ELF32_R_SYM (rel[1].r_info) == r_symndx | |
2758 | && (((insn = bfd_get_32 (input_bfd, | |
2759 | contents + rel[1].r_offset)) | |
2760 | >> 25) & 0x1f) == 8) | |
2761 | { | |
2762 | /* We have | |
2763 | call __tls_get_addr, %tgd_call(foo) | |
2764 | add %reg1, %reg2, %o0, %tgd_add(foo) | |
2765 | and change it into IE: | |
2766 | ld [%reg1 + %reg2], %o0, %tie_ld(foo) | |
2767 | add %g7, %o0, %o0, %tie_add(foo). | |
2768 | add is 0x80000000 | (rd << 25) | (rs1 << 14) | rs2, | |
2769 | ld is 0xc0000000 | (rd << 25) | (rs1 << 14) | rs2. */ | |
2770 | bfd_put_32 (output_bfd, insn | 0xc0000000, | |
2771 | contents + rel->r_offset); | |
2772 | bfd_put_32 (output_bfd, 0x9001c008, | |
2773 | contents + rel->r_offset + 4); | |
2774 | rel++; | |
2775 | continue; | |
2776 | } | |
2777 | ||
2778 | bfd_put_32 (output_bfd, 0x9001c008, contents + rel->r_offset); | |
2779 | continue; | |
2780 | } | |
2781 | ||
2782 | h = (struct elf_link_hash_entry *) | |
2783 | bfd_link_hash_lookup (info->hash, "__tls_get_addr", FALSE, | |
2784 | FALSE, TRUE); | |
2785 | BFD_ASSERT (h != NULL); | |
2786 | r_type = R_SPARC_WPLT30; | |
2787 | howto = _bfd_sparc_elf_howto_table + r_type; | |
2788 | goto r_sparc_wplt30; | |
2789 | ||
2790 | case R_SPARC_TLS_GD_ADD: | |
2791 | tls_type = GOT_UNKNOWN; | |
2792 | if (h == NULL && local_got_offsets) | |
2793 | tls_type = elf32_sparc_local_got_tls_type (input_bfd) [r_symndx]; | |
2794 | else if (h != NULL) | |
2795 | tls_type = elf32_sparc_hash_entry(h)->tls_type; | |
2796 | if (! info->shared || tls_type == GOT_TLS_IE) | |
2797 | { | |
2798 | /* add %reg1, %reg2, %reg3, %tgd_add(foo) | |
2799 | changed into IE: | |
2800 | ld [%reg1 + %reg2], %reg3, %tie_ld(foo) | |
2801 | or LE: | |
2802 | add %g7, %reg2, %reg3. */ | |
2803 | bfd_vma insn = bfd_get_32 (input_bfd, contents + rel->r_offset); | |
2804 | if ((h != NULL && h->dynindx != -1) || info->shared) | |
2805 | relocation = insn | 0xc0000000; | |
2806 | else | |
2807 | relocation = (insn & ~0x7c000) | 0x1c000; | |
2808 | bfd_put_32 (output_bfd, relocation, contents + rel->r_offset); | |
2809 | } | |
2810 | continue; | |
2811 | ||
2812 | case R_SPARC_TLS_LDM_ADD: | |
2813 | if (! info->shared) | |
2814 | bfd_put_32 (output_bfd, SPARC_NOP, contents + rel->r_offset); | |
2815 | continue; | |
2816 | ||
2817 | case R_SPARC_TLS_LDO_ADD: | |
2818 | if (! info->shared) | |
2819 | { | |
2820 | /* Change rs1 into %g7. */ | |
2821 | bfd_vma insn = bfd_get_32 (input_bfd, contents + rel->r_offset); | |
2822 | insn = (insn & ~0x7c000) | 0x1c000; | |
2823 | bfd_put_32 (output_bfd, insn, contents + rel->r_offset); | |
2824 | } | |
2825 | continue; | |
2826 | ||
2827 | case R_SPARC_TLS_IE_LD: | |
2828 | case R_SPARC_TLS_IE_LDX: | |
2829 | if (! info->shared && (h == NULL || h->dynindx == -1)) | |
2830 | { | |
2831 | bfd_vma insn = bfd_get_32 (input_bfd, contents + rel->r_offset); | |
2832 | int rs2 = insn & 0x1f; | |
2833 | int rd = (insn >> 25) & 0x1f; | |
2834 | ||
2835 | if (rs2 == rd) | |
2836 | relocation = SPARC_NOP; | |
2837 | else | |
2838 | relocation = 0x80100000 | (insn & 0x3e00001f); | |
2839 | bfd_put_32 (output_bfd, relocation, contents + rel->r_offset); | |
2840 | } | |
2841 | continue; | |
2842 | ||
2843 | case R_SPARC_TLS_IE_ADD: | |
2844 | /* Totally useless relocation. */ | |
2845 | continue; | |
2846 | ||
2847 | case R_SPARC_TLS_DTPOFF32: | |
2848 | relocation -= dtpoff_base (info); | |
2849 | break; | |
2850 | ||
252b5132 RH |
2851 | default: |
2852 | break; | |
2853 | } | |
2854 | ||
239e1f3a AM |
2855 | /* Dynamic relocs are not propagated for SEC_DEBUGGING sections |
2856 | because such sections are not SEC_ALLOC and thus ld.so will | |
2857 | not process them. */ | |
e36f7d53 | 2858 | if (unresolved_reloc |
239e1f3a | 2859 | && !((input_section->flags & SEC_DEBUGGING) != 0 |
e36f7d53 RH |
2860 | && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC) != 0)) |
2861 | (*_bfd_error_handler) | |
2862 | (_("%s(%s+0x%lx): unresolvable relocation against symbol `%s'"), | |
2863 | bfd_archive_filename (input_bfd), | |
2864 | bfd_get_section_name (input_bfd, input_section), | |
2865 | (long) rel->r_offset, | |
2866 | h->root.root.string); | |
2867 | ||
f7775d95 | 2868 | r = bfd_reloc_continue; |
252b5132 RH |
2869 | if (r_type == R_SPARC_WDISP16) |
2870 | { | |
2871 | bfd_vma x; | |
2872 | ||
2873 | relocation += rel->r_addend; | |
2874 | relocation -= (input_section->output_section->vma | |
2875 | + input_section->output_offset); | |
2876 | relocation -= rel->r_offset; | |
2877 | ||
2878 | x = bfd_get_32 (input_bfd, contents + rel->r_offset); | |
2879 | x |= ((((relocation >> 2) & 0xc000) << 6) | |
2880 | | ((relocation >> 2) & 0x3fff)); | |
2881 | bfd_put_32 (input_bfd, x, contents + rel->r_offset); | |
2882 | ||
2883 | if ((bfd_signed_vma) relocation < - 0x40000 | |
2884 | || (bfd_signed_vma) relocation > 0x3ffff) | |
2885 | r = bfd_reloc_overflow; | |
2886 | else | |
2887 | r = bfd_reloc_ok; | |
2888 | } | |
2889 | else if (r_type == R_SPARC_REV32) | |
2890 | { | |
2891 | bfd_vma x; | |
2892 | ||
2893 | relocation = relocation + rel->r_addend; | |
2894 | ||
2895 | x = bfd_get_32 (input_bfd, contents + rel->r_offset); | |
2896 | x = x + relocation; | |
2897 | bfd_putl32 (/*input_bfd,*/ x, contents + rel->r_offset); | |
b9734f35 JJ |
2898 | r = bfd_reloc_ok; |
2899 | } | |
2900 | else if (r_type == R_SPARC_TLS_LDO_HIX22 | |
2901 | || r_type == R_SPARC_TLS_LE_HIX22) | |
2902 | { | |
2903 | bfd_vma x; | |
2904 | ||
2905 | relocation += rel->r_addend; | |
2906 | relocation = relocation ^ 0xffffffff; | |
2907 | ||
2908 | x = bfd_get_32 (input_bfd, contents + rel->r_offset); | |
2909 | x = (x & ~(bfd_vma) 0x3fffff) | ((relocation >> 10) & 0x3fffff); | |
2910 | bfd_put_32 (input_bfd, x, contents + rel->r_offset); | |
2911 | r = bfd_reloc_ok; | |
2912 | } | |
2913 | else if (r_type == R_SPARC_TLS_LDO_LOX10 | |
2914 | || r_type == R_SPARC_TLS_LE_LOX10) | |
2915 | { | |
2916 | bfd_vma x; | |
2917 | ||
2918 | relocation += rel->r_addend; | |
2919 | relocation = (relocation & 0x3ff) | 0x1c00; | |
2920 | ||
2921 | x = bfd_get_32 (input_bfd, contents + rel->r_offset); | |
2922 | x = (x & ~(bfd_vma) 0x1fff) | relocation; | |
2923 | bfd_put_32 (input_bfd, x, contents + rel->r_offset); | |
2924 | ||
252b5132 RH |
2925 | r = bfd_reloc_ok; |
2926 | } | |
f7775d95 | 2927 | else if ((r_type == R_SPARC_WDISP30 || r_type == R_SPARC_WPLT30) |
f0abc2a1 | 2928 | && sec_do_relax (input_section) |
eea6121a | 2929 | && rel->r_offset + 4 < input_section->size) |
f7775d95 JJ |
2930 | { |
2931 | #define G0 0 | |
2932 | #define O7 15 | |
2933 | #define XCC (2 << 20) | |
2934 | #define COND(x) (((x)&0xf)<<25) | |
2935 | #define CONDA COND(0x8) | |
2936 | #define INSN_BPA (F2(0,1) | CONDA | BPRED | XCC) | |
2937 | #define INSN_BA (F2(0,2) | CONDA) | |
2938 | #define INSN_OR F3(2, 0x2, 0) | |
2939 | #define INSN_NOP F2(0,4) | |
2940 | ||
2941 | bfd_vma x, y; | |
2942 | ||
2943 | /* If the instruction is a call with either: | |
2944 | restore | |
2945 | arithmetic instruction with rd == %o7 | |
2946 | where rs1 != %o7 and rs2 if it is register != %o7 | |
2947 | then we can optimize if the call destination is near | |
2948 | by changing the call into a branch always. */ | |
2949 | x = bfd_get_32 (input_bfd, contents + rel->r_offset); | |
2950 | y = bfd_get_32 (input_bfd, contents + rel->r_offset + 4); | |
2951 | if ((x & OP(~0)) == OP(1) && (y & OP(~0)) == OP(2)) | |
2952 | { | |
2953 | if (((y & OP3(~0)) == OP3(0x3d) /* restore */ | |
2954 | || ((y & OP3(0x28)) == 0 /* arithmetic */ | |
2955 | && (y & RD(~0)) == RD(O7))) | |
2956 | && (y & RS1(~0)) != RS1(O7) | |
2957 | && ((y & F3I(~0)) | |
2958 | || (y & RS2(~0)) != RS2(O7))) | |
2959 | { | |
2960 | bfd_vma reloc; | |
2961 | ||
2962 | reloc = relocation + rel->r_addend - rel->r_offset; | |
2963 | reloc -= (input_section->output_section->vma | |
2964 | + input_section->output_offset); | |
2965 | ||
2966 | /* Ensure the reloc fits into simm22. */ | |
2967 | if ((reloc & 3) == 0 | |
2968 | && ((reloc & ~(bfd_vma)0x7fffff) == 0 | |
2969 | || ((reloc | 0x7fffff) == ~(bfd_vma)0))) | |
2970 | { | |
2971 | reloc >>= 2; | |
435b1e90 | 2972 | |
f7775d95 JJ |
2973 | /* Check whether it fits into simm19 on v9. */ |
2974 | if (((reloc & 0x3c0000) == 0 | |
2975 | || (reloc & 0x3c0000) == 0x3c0000) | |
2976 | && (elf_elfheader (output_bfd)->e_flags & EF_SPARC_32PLUS)) | |
2977 | x = INSN_BPA | (reloc & 0x7ffff); /* ba,pt %xcc */ | |
2978 | else | |
2979 | x = INSN_BA | (reloc & 0x3fffff); /* ba */ | |
2980 | bfd_put_32 (input_bfd, x, contents + rel->r_offset); | |
2981 | r = bfd_reloc_ok; | |
2982 | if (rel->r_offset >= 4 | |
2983 | && (y & (0xffffffff ^ RS1(~0))) | |
2984 | == (INSN_OR | RD(O7) | RS2(G0))) | |
2985 | { | |
2986 | bfd_vma z; | |
2987 | unsigned int reg; | |
2988 | ||
2989 | z = bfd_get_32 (input_bfd, | |
2990 | contents + rel->r_offset - 4); | |
2991 | if ((z & (0xffffffff ^ RD(~0))) | |
2992 | != (INSN_OR | RS1(O7) | RS2(G0))) | |
2993 | break; | |
2994 | ||
2995 | /* The sequence was | |
2996 | or %o7, %g0, %rN | |
2997 | call foo | |
2998 | or %rN, %g0, %o7 | |
2999 | ||
3000 | If call foo was replaced with ba, replace | |
3001 | or %rN, %g0, %o7 with nop. */ | |
3002 | ||
3003 | reg = (y & RS1(~0)) >> 14; | |
3004 | if (reg != ((z & RD(~0)) >> 25) | |
3005 | || reg == G0 || reg == O7) | |
3006 | break; | |
3007 | ||
dc810e39 | 3008 | bfd_put_32 (input_bfd, (bfd_vma) INSN_NOP, |
f7775d95 JJ |
3009 | contents + rel->r_offset + 4); |
3010 | } | |
3011 | ||
3012 | } | |
3013 | } | |
3014 | } | |
3015 | } | |
3016 | ||
3017 | if (r == bfd_reloc_continue) | |
252b5132 RH |
3018 | r = _bfd_final_link_relocate (howto, input_bfd, input_section, |
3019 | contents, rel->r_offset, | |
3020 | relocation, rel->r_addend); | |
3021 | ||
252b5132 RH |
3022 | if (r != bfd_reloc_ok) |
3023 | { | |
3024 | switch (r) | |
3025 | { | |
3026 | default: | |
3027 | case bfd_reloc_outofrange: | |
3028 | abort (); | |
3029 | case bfd_reloc_overflow: | |
3030 | { | |
3031 | const char *name; | |
3032 | ||
3033 | if (h != NULL) | |
3034 | name = h->root.root.string; | |
3035 | else | |
3036 | { | |
3037 | name = bfd_elf_string_from_elf_section (input_bfd, | |
3038 | symtab_hdr->sh_link, | |
3039 | sym->st_name); | |
3040 | if (name == NULL) | |
b34976b6 | 3041 | return FALSE; |
252b5132 RH |
3042 | if (*name == '\0') |
3043 | name = bfd_section_name (input_bfd, sec); | |
3044 | } | |
3045 | if (! ((*info->callbacks->reloc_overflow) | |
3046 | (info, name, howto->name, (bfd_vma) 0, | |
3047 | input_bfd, input_section, rel->r_offset))) | |
b34976b6 | 3048 | return FALSE; |
252b5132 RH |
3049 | } |
3050 | break; | |
3051 | } | |
3052 | } | |
3053 | } | |
3054 | ||
b34976b6 | 3055 | return TRUE; |
252b5132 RH |
3056 | } |
3057 | ||
3058 | /* Finish up dynamic symbol handling. We set the contents of various | |
3059 | dynamic sections here. */ | |
3060 | ||
b34976b6 | 3061 | static bfd_boolean |
252b5132 RH |
3062 | elf32_sparc_finish_dynamic_symbol (output_bfd, info, h, sym) |
3063 | bfd *output_bfd; | |
3064 | struct bfd_link_info *info; | |
3065 | struct elf_link_hash_entry *h; | |
3066 | Elf_Internal_Sym *sym; | |
3067 | { | |
3068 | bfd *dynobj; | |
b9734f35 | 3069 | struct elf32_sparc_link_hash_table *htab; |
26e41594 | 3070 | |
b9734f35 JJ |
3071 | htab = elf32_sparc_hash_table (info); |
3072 | dynobj = htab->elf.dynobj; | |
252b5132 RH |
3073 | |
3074 | if (h->plt.offset != (bfd_vma) -1) | |
3075 | { | |
3076 | asection *splt; | |
3077 | asection *srela; | |
3078 | Elf_Internal_Rela rela; | |
b34976b6 | 3079 | bfd_byte *loc; |
252b5132 RH |
3080 | |
3081 | /* This symbol has an entry in the procedure linkage table. Set | |
26e41594 | 3082 | it up. */ |
252b5132 RH |
3083 | |
3084 | BFD_ASSERT (h->dynindx != -1); | |
3085 | ||
b9734f35 JJ |
3086 | splt = htab->splt; |
3087 | srela = htab->srelplt; | |
252b5132 RH |
3088 | BFD_ASSERT (splt != NULL && srela != NULL); |
3089 | ||
3090 | /* Fill in the entry in the procedure linkage table. */ | |
3091 | bfd_put_32 (output_bfd, | |
3092 | PLT_ENTRY_WORD0 + h->plt.offset, | |
3093 | splt->contents + h->plt.offset); | |
3094 | bfd_put_32 (output_bfd, | |
3095 | (PLT_ENTRY_WORD1 | |
3096 | + (((- (h->plt.offset + 4)) >> 2) & 0x3fffff)), | |
3097 | splt->contents + h->plt.offset + 4); | |
dc810e39 | 3098 | bfd_put_32 (output_bfd, (bfd_vma) PLT_ENTRY_WORD2, |
252b5132 RH |
3099 | splt->contents + h->plt.offset + 8); |
3100 | ||
3101 | /* Fill in the entry in the .rela.plt section. */ | |
3102 | rela.r_offset = (splt->output_section->vma | |
3103 | + splt->output_offset | |
3104 | + h->plt.offset); | |
3105 | rela.r_info = ELF32_R_INFO (h->dynindx, R_SPARC_JMP_SLOT); | |
3106 | rela.r_addend = 0; | |
b34976b6 AM |
3107 | loc = srela->contents; |
3108 | loc += (h->plt.offset / PLT_ENTRY_SIZE - 4) * sizeof (Elf32_External_Rela); | |
3109 | bfd_elf32_swap_reloca_out (output_bfd, &rela, loc); | |
252b5132 RH |
3110 | |
3111 | if ((h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0) | |
3112 | { | |
3113 | /* Mark the symbol as undefined, rather than as defined in | |
3114 | the .plt section. Leave the value alone. */ | |
3115 | sym->st_shndx = SHN_UNDEF; | |
8701c1bc JJ |
3116 | /* If the symbol is weak, we do need to clear the value. |
3117 | Otherwise, the PLT entry would provide a definition for | |
3118 | the symbol even if the symbol wasn't defined anywhere, | |
3119 | and so the symbol would never be NULL. */ | |
3120 | if ((h->elf_link_hash_flags & ELF_LINK_HASH_REF_REGULAR_NONWEAK) | |
3121 | == 0) | |
3122 | sym->st_value = 0; | |
252b5132 RH |
3123 | } |
3124 | } | |
3125 | ||
b9734f35 JJ |
3126 | if (h->got.offset != (bfd_vma) -1 |
3127 | && elf32_sparc_hash_entry(h)->tls_type != GOT_TLS_GD | |
3128 | && elf32_sparc_hash_entry(h)->tls_type != GOT_TLS_IE) | |
252b5132 RH |
3129 | { |
3130 | asection *sgot; | |
3131 | asection *srela; | |
3132 | Elf_Internal_Rela rela; | |
b34976b6 | 3133 | bfd_byte *loc; |
252b5132 RH |
3134 | |
3135 | /* This symbol has an entry in the global offset table. Set it | |
26e41594 | 3136 | up. */ |
252b5132 | 3137 | |
b9734f35 JJ |
3138 | sgot = htab->sgot; |
3139 | srela = htab->srelgot; | |
252b5132 RH |
3140 | BFD_ASSERT (sgot != NULL && srela != NULL); |
3141 | ||
3142 | rela.r_offset = (sgot->output_section->vma | |
3143 | + sgot->output_offset | |
dc810e39 | 3144 | + (h->got.offset &~ (bfd_vma) 1)); |
252b5132 RH |
3145 | |
3146 | /* If this is a -Bsymbolic link, and the symbol is defined | |
3147 | locally, we just want to emit a RELATIVE reloc. Likewise if | |
3148 | the symbol was forced to be local because of a version file. | |
3149 | The entry in the global offset table will already have been | |
3150 | initialized in the relocate_section function. */ | |
3151 | if (info->shared | |
3152 | && (info->symbolic || h->dynindx == -1) | |
3153 | && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR)) | |
6b3ac709 JJ |
3154 | { |
3155 | asection *sec = h->root.u.def.section; | |
3156 | rela.r_info = ELF32_R_INFO (0, R_SPARC_RELATIVE); | |
3157 | rela.r_addend = (h->root.u.def.value | |
3158 | + sec->output_section->vma | |
3159 | + sec->output_offset); | |
3160 | } | |
252b5132 RH |
3161 | else |
3162 | { | |
252b5132 | 3163 | rela.r_info = ELF32_R_INFO (h->dynindx, R_SPARC_GLOB_DAT); |
6b3ac709 | 3164 | rela.r_addend = 0; |
252b5132 RH |
3165 | } |
3166 | ||
6b3ac709 JJ |
3167 | bfd_put_32 (output_bfd, (bfd_vma) 0, |
3168 | sgot->contents + (h->got.offset &~ (bfd_vma) 1)); | |
b34976b6 AM |
3169 | loc = srela->contents; |
3170 | loc += srela->reloc_count++ * sizeof (Elf32_External_Rela); | |
3171 | bfd_elf32_swap_reloca_out (output_bfd, &rela, loc); | |
252b5132 RH |
3172 | } |
3173 | ||
3174 | if ((h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_COPY) != 0) | |
3175 | { | |
3176 | asection *s; | |
3177 | Elf_Internal_Rela rela; | |
b34976b6 | 3178 | bfd_byte *loc; |
252b5132 RH |
3179 | |
3180 | /* This symbols needs a copy reloc. Set it up. */ | |
3181 | ||
3182 | BFD_ASSERT (h->dynindx != -1); | |
3183 | ||
3184 | s = bfd_get_section_by_name (h->root.u.def.section->owner, | |
3185 | ".rela.bss"); | |
3186 | BFD_ASSERT (s != NULL); | |
3187 | ||
3188 | rela.r_offset = (h->root.u.def.value | |
3189 | + h->root.u.def.section->output_section->vma | |
3190 | + h->root.u.def.section->output_offset); | |
3191 | rela.r_info = ELF32_R_INFO (h->dynindx, R_SPARC_COPY); | |
3192 | rela.r_addend = 0; | |
b34976b6 AM |
3193 | loc = s->contents + s->reloc_count++ * sizeof (Elf32_External_Rela); |
3194 | bfd_elf32_swap_reloca_out (output_bfd, &rela, loc); | |
252b5132 RH |
3195 | } |
3196 | ||
3197 | /* Mark some specially defined symbols as absolute. */ | |
3198 | if (strcmp (h->root.root.string, "_DYNAMIC") == 0 | |
3199 | || strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0 | |
3200 | || strcmp (h->root.root.string, "_PROCEDURE_LINKAGE_TABLE_") == 0) | |
3201 | sym->st_shndx = SHN_ABS; | |
3202 | ||
b34976b6 | 3203 | return TRUE; |
252b5132 RH |
3204 | } |
3205 | ||
3206 | /* Finish up the dynamic sections. */ | |
3207 | ||
b34976b6 | 3208 | static bfd_boolean |
252b5132 RH |
3209 | elf32_sparc_finish_dynamic_sections (output_bfd, info) |
3210 | bfd *output_bfd; | |
3211 | struct bfd_link_info *info; | |
3212 | { | |
3213 | bfd *dynobj; | |
3214 | asection *sdyn; | |
b9734f35 | 3215 | struct elf32_sparc_link_hash_table *htab; |
26e41594 | 3216 | |
b9734f35 JJ |
3217 | htab = elf32_sparc_hash_table (info); |
3218 | dynobj = htab->elf.dynobj; | |
252b5132 RH |
3219 | |
3220 | sdyn = bfd_get_section_by_name (dynobj, ".dynamic"); | |
3221 | ||
3222 | if (elf_hash_table (info)->dynamic_sections_created) | |
3223 | { | |
3224 | asection *splt; | |
3225 | Elf32_External_Dyn *dyncon, *dynconend; | |
3226 | ||
3227 | splt = bfd_get_section_by_name (dynobj, ".plt"); | |
3228 | BFD_ASSERT (splt != NULL && sdyn != NULL); | |
3229 | ||
3230 | dyncon = (Elf32_External_Dyn *) sdyn->contents; | |
eea6121a | 3231 | dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size); |
252b5132 RH |
3232 | for (; dyncon < dynconend; dyncon++) |
3233 | { | |
3234 | Elf_Internal_Dyn dyn; | |
3235 | const char *name; | |
b34976b6 | 3236 | bfd_boolean size; |
252b5132 RH |
3237 | |
3238 | bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn); | |
3239 | ||
3240 | switch (dyn.d_tag) | |
3241 | { | |
b34976b6 AM |
3242 | case DT_PLTGOT: name = ".plt"; size = FALSE; break; |
3243 | case DT_PLTRELSZ: name = ".rela.plt"; size = TRUE; break; | |
3244 | case DT_JMPREL: name = ".rela.plt"; size = FALSE; break; | |
3245 | default: name = NULL; size = FALSE; break; | |
252b5132 RH |
3246 | } |
3247 | ||
3248 | if (name != NULL) | |
3249 | { | |
3250 | asection *s; | |
3251 | ||
3252 | s = bfd_get_section_by_name (output_bfd, name); | |
3253 | if (s == NULL) | |
3254 | dyn.d_un.d_val = 0; | |
3255 | else | |
3256 | { | |
3257 | if (! size) | |
3258 | dyn.d_un.d_ptr = s->vma; | |
3259 | else | |
eea6121a | 3260 | dyn.d_un.d_val = s->size; |
252b5132 RH |
3261 | } |
3262 | bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon); | |
3263 | } | |
3264 | } | |
3265 | ||
3266 | /* Clear the first four entries in the procedure linkage table, | |
3267 | and put a nop in the last four bytes. */ | |
eea6121a | 3268 | if (splt->size > 0) |
252b5132 RH |
3269 | { |
3270 | memset (splt->contents, 0, 4 * PLT_ENTRY_SIZE); | |
dc810e39 | 3271 | bfd_put_32 (output_bfd, (bfd_vma) SPARC_NOP, |
eea6121a | 3272 | splt->contents + splt->size - 4); |
252b5132 RH |
3273 | } |
3274 | ||
a8a6d7ce | 3275 | elf_section_data (splt->output_section)->this_hdr.sh_entsize = 0; |
252b5132 RH |
3276 | } |
3277 | ||
3278 | /* Set the first entry in the global offset table to the address of | |
3279 | the dynamic section. */ | |
eea6121a | 3280 | if (htab->sgot && htab->sgot->size > 0) |
252b5132 RH |
3281 | { |
3282 | if (sdyn == NULL) | |
b9734f35 | 3283 | bfd_put_32 (output_bfd, (bfd_vma) 0, htab->sgot->contents); |
252b5132 RH |
3284 | else |
3285 | bfd_put_32 (output_bfd, | |
3286 | sdyn->output_section->vma + sdyn->output_offset, | |
b9734f35 | 3287 | htab->sgot->contents); |
252b5132 RH |
3288 | } |
3289 | ||
b9734f35 JJ |
3290 | if (htab->sgot) |
3291 | elf_section_data (htab->sgot->output_section)->this_hdr.sh_entsize = 4; | |
252b5132 | 3292 | |
b34976b6 | 3293 | return TRUE; |
252b5132 RH |
3294 | } |
3295 | \f | |
3296 | /* Functions for dealing with the e_flags field. | |
3297 | ||
3298 | We don't define set_private_flags or copy_private_bfd_data because | |
3299 | the only currently defined values are based on the bfd mach number, | |
3300 | so we use the latter instead and defer setting e_flags until the | |
3301 | file is written out. */ | |
3302 | ||
3303 | /* Merge backend specific data from an object file to the output | |
3304 | object file when linking. */ | |
3305 | ||
b34976b6 | 3306 | static bfd_boolean |
252b5132 RH |
3307 | elf32_sparc_merge_private_bfd_data (ibfd, obfd) |
3308 | bfd *ibfd; | |
3309 | bfd *obfd; | |
3310 | { | |
b34976b6 | 3311 | bfd_boolean error; |
5f771d47 ILT |
3312 | /* FIXME: This should not be static. */ |
3313 | static unsigned long previous_ibfd_e_flags = (unsigned long) -1; | |
252b5132 RH |
3314 | |
3315 | if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour | |
3316 | || bfd_get_flavour (obfd) != bfd_target_elf_flavour) | |
b34976b6 | 3317 | return TRUE; |
252b5132 | 3318 | |
b34976b6 | 3319 | error = FALSE; |
252b5132 | 3320 | |
252b5132 RH |
3321 | if (bfd_get_mach (ibfd) >= bfd_mach_sparc_v9) |
3322 | { | |
b34976b6 | 3323 | error = TRUE; |
252b5132 RH |
3324 | (*_bfd_error_handler) |
3325 | (_("%s: compiled for a 64 bit system and target is 32 bit"), | |
8f615d07 | 3326 | bfd_archive_filename (ibfd)); |
252b5132 | 3327 | } |
37fb6db1 ILT |
3328 | else if ((ibfd->flags & DYNAMIC) == 0) |
3329 | { | |
3330 | if (bfd_get_mach (obfd) < bfd_get_mach (ibfd)) | |
3331 | bfd_set_arch_mach (obfd, bfd_arch_sparc, bfd_get_mach (ibfd)); | |
3332 | } | |
252b5132 RH |
3333 | |
3334 | if (((elf_elfheader (ibfd)->e_flags & EF_SPARC_LEDATA) | |
3335 | != previous_ibfd_e_flags) | |
5f771d47 | 3336 | && previous_ibfd_e_flags != (unsigned long) -1) |
252b5132 RH |
3337 | { |
3338 | (*_bfd_error_handler) | |
3339 | (_("%s: linking little endian files with big endian files"), | |
8f615d07 | 3340 | bfd_archive_filename (ibfd)); |
b34976b6 | 3341 | error = TRUE; |
252b5132 RH |
3342 | } |
3343 | previous_ibfd_e_flags = elf_elfheader (ibfd)->e_flags & EF_SPARC_LEDATA; | |
3344 | ||
3345 | if (error) | |
3346 | { | |
3347 | bfd_set_error (bfd_error_bad_value); | |
b34976b6 | 3348 | return FALSE; |
252b5132 RH |
3349 | } |
3350 | ||
b34976b6 | 3351 | return TRUE; |
252b5132 RH |
3352 | } |
3353 | \f | |
3354 | /* Set the right machine number. */ | |
3355 | ||
b34976b6 | 3356 | static bfd_boolean |
252b5132 RH |
3357 | elf32_sparc_object_p (abfd) |
3358 | bfd *abfd; | |
3359 | { | |
3360 | if (elf_elfheader (abfd)->e_machine == EM_SPARC32PLUS) | |
3361 | { | |
19f7b010 JJ |
3362 | if (elf_elfheader (abfd)->e_flags & EF_SPARC_SUN_US3) |
3363 | return bfd_default_set_arch_mach (abfd, bfd_arch_sparc, | |
3364 | bfd_mach_sparc_v8plusb); | |
3365 | else if (elf_elfheader (abfd)->e_flags & EF_SPARC_SUN_US1) | |
252b5132 RH |
3366 | return bfd_default_set_arch_mach (abfd, bfd_arch_sparc, |
3367 | bfd_mach_sparc_v8plusa); | |
3368 | else if (elf_elfheader (abfd)->e_flags & EF_SPARC_32PLUS) | |
3369 | return bfd_default_set_arch_mach (abfd, bfd_arch_sparc, | |
3370 | bfd_mach_sparc_v8plus); | |
3371 | else | |
b34976b6 | 3372 | return FALSE; |
252b5132 RH |
3373 | } |
3374 | else if (elf_elfheader (abfd)->e_flags & EF_SPARC_LEDATA) | |
3375 | return bfd_default_set_arch_mach (abfd, bfd_arch_sparc, | |
20278fa3 | 3376 | bfd_mach_sparc_sparclite_le); |
252b5132 RH |
3377 | else |
3378 | return bfd_default_set_arch_mach (abfd, bfd_arch_sparc, bfd_mach_sparc); | |
3379 | } | |
3380 | ||
3381 | /* The final processing done just before writing out the object file. | |
3382 | We need to set the e_machine field appropriately. */ | |
3383 | ||
3384 | static void | |
3385 | elf32_sparc_final_write_processing (abfd, linker) | |
3386 | bfd *abfd; | |
b34976b6 | 3387 | bfd_boolean linker ATTRIBUTE_UNUSED; |
252b5132 RH |
3388 | { |
3389 | switch (bfd_get_mach (abfd)) | |
3390 | { | |
3391 | case bfd_mach_sparc : | |
3392 | break; /* nothing to do */ | |
3393 | case bfd_mach_sparc_v8plus : | |
3394 | elf_elfheader (abfd)->e_machine = EM_SPARC32PLUS; | |
3395 | elf_elfheader (abfd)->e_flags &=~ EF_SPARC_32PLUS_MASK; | |
3396 | elf_elfheader (abfd)->e_flags |= EF_SPARC_32PLUS; | |
3397 | break; | |
3398 | case bfd_mach_sparc_v8plusa : | |
3399 | elf_elfheader (abfd)->e_machine = EM_SPARC32PLUS; | |
3400 | elf_elfheader (abfd)->e_flags &=~ EF_SPARC_32PLUS_MASK; | |
3401 | elf_elfheader (abfd)->e_flags |= EF_SPARC_32PLUS | EF_SPARC_SUN_US1; | |
3402 | break; | |
19f7b010 JJ |
3403 | case bfd_mach_sparc_v8plusb : |
3404 | elf_elfheader (abfd)->e_machine = EM_SPARC32PLUS; | |
3405 | elf_elfheader (abfd)->e_flags &=~ EF_SPARC_32PLUS_MASK; | |
3406 | elf_elfheader (abfd)->e_flags |= EF_SPARC_32PLUS | EF_SPARC_SUN_US1 | |
3407 | | EF_SPARC_SUN_US3; | |
3408 | break; | |
252b5132 RH |
3409 | case bfd_mach_sparc_sparclite_le : |
3410 | elf_elfheader (abfd)->e_machine = EM_SPARC; | |
3411 | elf_elfheader (abfd)->e_flags |= EF_SPARC_LEDATA; | |
3412 | break; | |
3413 | default : | |
3414 | abort (); | |
3415 | break; | |
3416 | } | |
3417 | } | |
db6751f2 JJ |
3418 | |
3419 | static enum elf_reloc_type_class | |
f51e552e AM |
3420 | elf32_sparc_reloc_type_class (rela) |
3421 | const Elf_Internal_Rela *rela; | |
db6751f2 | 3422 | { |
f51e552e | 3423 | switch ((int) ELF32_R_TYPE (rela->r_info)) |
db6751f2 JJ |
3424 | { |
3425 | case R_SPARC_RELATIVE: | |
3426 | return reloc_class_relative; | |
3427 | case R_SPARC_JMP_SLOT: | |
3428 | return reloc_class_plt; | |
3429 | case R_SPARC_COPY: | |
3430 | return reloc_class_copy; | |
3431 | default: | |
3432 | return reloc_class_normal; | |
3433 | } | |
3434 | } | |
4c45e5c9 JJ |
3435 | |
3436 | /* Return address for Ith PLT stub in section PLT, for relocation REL | |
3437 | or (bfd_vma) -1 if it should not be included. */ | |
3438 | ||
3439 | static bfd_vma | |
3440 | elf32_sparc_plt_sym_val (bfd_vma i ATTRIBUTE_UNUSED, | |
3441 | const asection *plt ATTRIBUTE_UNUSED, | |
3442 | const arelent *rel) | |
3443 | { | |
3444 | return rel->address; | |
3445 | } | |
252b5132 RH |
3446 | \f |
3447 | #define TARGET_BIG_SYM bfd_elf32_sparc_vec | |
3448 | #define TARGET_BIG_NAME "elf32-sparc" | |
3449 | #define ELF_ARCH bfd_arch_sparc | |
3450 | #define ELF_MACHINE_CODE EM_SPARC | |
3451 | #define ELF_MACHINE_ALT1 EM_SPARC32PLUS | |
3452 | #define ELF_MAXPAGESIZE 0x10000 | |
3453 | ||
3454 | #define bfd_elf32_bfd_reloc_type_lookup elf32_sparc_reloc_type_lookup | |
b9734f35 JJ |
3455 | #define bfd_elf32_bfd_link_hash_table_create \ |
3456 | elf32_sparc_link_hash_table_create | |
f7775d95 | 3457 | #define bfd_elf32_bfd_relax_section elf32_sparc_relax_section |
71e5db1c | 3458 | #define bfd_elf32_new_section_hook elf32_sparc_new_section_hook |
252b5132 | 3459 | #define elf_info_to_howto elf32_sparc_info_to_howto |
b9734f35 JJ |
3460 | #define elf_backend_copy_indirect_symbol \ |
3461 | elf32_sparc_copy_indirect_symbol | |
252b5132 | 3462 | #define elf_backend_create_dynamic_sections \ |
b9734f35 | 3463 | elf32_sparc_create_dynamic_sections |
252b5132 RH |
3464 | #define elf_backend_check_relocs elf32_sparc_check_relocs |
3465 | #define elf_backend_adjust_dynamic_symbol \ | |
3466 | elf32_sparc_adjust_dynamic_symbol | |
3467 | #define elf_backend_size_dynamic_sections \ | |
3468 | elf32_sparc_size_dynamic_sections | |
3469 | #define elf_backend_relocate_section elf32_sparc_relocate_section | |
3470 | #define elf_backend_finish_dynamic_symbol \ | |
3471 | elf32_sparc_finish_dynamic_symbol | |
3472 | #define elf_backend_finish_dynamic_sections \ | |
3473 | elf32_sparc_finish_dynamic_sections | |
3474 | #define bfd_elf32_bfd_merge_private_bfd_data \ | |
3475 | elf32_sparc_merge_private_bfd_data | |
b9734f35 | 3476 | #define bfd_elf32_mkobject elf32_sparc_mkobject |
252b5132 RH |
3477 | #define elf_backend_object_p elf32_sparc_object_p |
3478 | #define elf_backend_final_write_processing \ | |
3479 | elf32_sparc_final_write_processing | |
26e41594 | 3480 | #define elf_backend_gc_mark_hook elf32_sparc_gc_mark_hook |
252b5132 | 3481 | #define elf_backend_gc_sweep_hook elf32_sparc_gc_sweep_hook |
0647ed71 | 3482 | #define elf_backend_grok_psinfo elf32_sparc_grok_psinfo |
db6751f2 | 3483 | #define elf_backend_reloc_type_class elf32_sparc_reloc_type_class |
4c45e5c9 | 3484 | #define elf_backend_plt_sym_val elf32_sparc_plt_sym_val |
252b5132 RH |
3485 | |
3486 | #define elf_backend_can_gc_sections 1 | |
b9734f35 | 3487 | #define elf_backend_can_refcount 1 |
252b5132 RH |
3488 | #define elf_backend_want_got_plt 0 |
3489 | #define elf_backend_plt_readonly 0 | |
3490 | #define elf_backend_want_plt_sym 1 | |
3491 | #define elf_backend_got_header_size 4 | |
f0fe0e16 | 3492 | #define elf_backend_rela_normal 1 |
252b5132 RH |
3493 | |
3494 | #include "elf32-target.h" |