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d3366d23 | 1 | /* SPARC-specific support for 64-bit ELF |
3869b11f | 2 | Copyright (C) 1993, 1995, 1996, 1997 Free Software Foundation, Inc. |
789776d7 KR |
3 | |
4 | This file is part of BFD, the Binary File Descriptor library. | |
5 | ||
6 | This program is free software; you can redistribute it and/or modify | |
7 | it under the terms of the GNU General Public License as published by | |
8 | the Free Software Foundation; either version 2 of the License, or | |
9 | (at your option) any later version. | |
10 | ||
11 | This program is distributed in the hope that it will be useful, | |
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | GNU General Public License for more details. | |
15 | ||
16 | You should have received a copy of the GNU General Public License | |
17 | along with this program; if not, write to the Free Software | |
d3366d23 DE |
18 | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ |
19 | ||
789776d7 KR |
20 | #include "bfd.h" |
21 | #include "sysdep.h" | |
22 | #include "libbfd.h" | |
d3366d23 DE |
23 | #include "elf-bfd.h" |
24 | ||
70e818d4 DE |
25 | /* This is defined if one wants to build upward compatible binaries |
26 | with the original sparc64-elf toolchain. The support is kept in for | |
27 | now but is turned off by default. dje 970930 */ | |
28 | /*#define SPARC64_OLD_RELOCS*/ | |
29 | ||
3869b11f DE |
30 | #include "elf/sparc.h" |
31 | ||
70e818d4 DE |
32 | /* In case we're on a 32-bit machine, construct a 64-bit "-1" value. */ |
33 | #define MINUS_ONE (~ (bfd_vma) 0) | |
34 | ||
3869b11f DE |
35 | static reloc_howto_type *sparc64_elf_reloc_type_lookup |
36 | PARAMS ((bfd *, bfd_reloc_code_real_type)); | |
37 | static void sparc64_elf_info_to_howto | |
38 | PARAMS ((bfd *, arelent *, Elf_Internal_Rela *)); | |
39 | ||
d3366d23 DE |
40 | static boolean sparc64_elf_relocate_section |
41 | PARAMS ((bfd *, struct bfd_link_info *, bfd *, asection *, bfd_byte *, | |
42 | Elf_Internal_Rela *, Elf_Internal_Sym *, asection **)); | |
43 | static boolean sparc64_elf_object_p PARAMS ((bfd *)); | |
70e818d4 DE |
44 | \f |
45 | /* The relocation "howto" table. */ | |
789776d7 | 46 | |
70e818d4 DE |
47 | static bfd_reloc_status_type sparc_elf_notsup_reloc |
48 | PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **)); | |
3869b11f DE |
49 | static bfd_reloc_status_type sparc_elf_wdisp16_reloc |
50 | PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **)); | |
70e818d4 DE |
51 | static bfd_reloc_status_type sparc_elf_hix22_reloc |
52 | PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **)); | |
53 | static bfd_reloc_status_type sparc_elf_lox10_reloc | |
54 | PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **)); | |
3869b11f DE |
55 | |
56 | static reloc_howto_type sparc64_elf_howto_table[] = | |
789776d7 | 57 | { |
3869b11f DE |
58 | HOWTO(R_SPARC_NONE, 0,0, 0,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_NONE", false,0,0x00000000,true), |
59 | HOWTO(R_SPARC_8, 0,0, 8,false,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_8", false,0,0x000000ff,true), | |
60 | HOWTO(R_SPARC_16, 0,1,16,false,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_16", false,0,0x0000ffff,true), | |
61 | HOWTO(R_SPARC_32, 0,2,32,false,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_32", false,0,0xffffffff,true), | |
62 | HOWTO(R_SPARC_DISP8, 0,0, 8,true, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_DISP8", false,0,0x000000ff,true), | |
63 | HOWTO(R_SPARC_DISP16, 0,1,16,true, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_DISP16", false,0,0x0000ffff,true), | |
64 | HOWTO(R_SPARC_DISP32, 0,2,32,true, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_DISP32", false,0,0x00ffffff,true), | |
65 | HOWTO(R_SPARC_WDISP30, 2,2,30,true, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_WDISP30", false,0,0x3fffffff,true), | |
66 | HOWTO(R_SPARC_WDISP22, 2,2,22,true, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_WDISP22", false,0,0x003fffff,true), | |
67 | HOWTO(R_SPARC_HI22, 10,2,22,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_HI22", false,0,0x003fffff,true), | |
68 | HOWTO(R_SPARC_22, 0,2,22,false,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_22", false,0,0x003fffff,true), | |
69 | HOWTO(R_SPARC_13, 0,2,13,false,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_13", false,0,0x00001fff,true), | |
70 | HOWTO(R_SPARC_LO10, 0,2,10,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_LO10", false,0,0x000003ff,true), | |
71 | HOWTO(R_SPARC_GOT10, 0,2,10,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_GOT10", false,0,0x000003ff,true), | |
72 | HOWTO(R_SPARC_GOT13, 0,2,13,false,0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_GOT13", false,0,0x00001fff,true), | |
73 | HOWTO(R_SPARC_GOT22, 10,2,22,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_GOT22", false,0,0x003fffff,true), | |
74 | HOWTO(R_SPARC_PC10, 0,2,10,true, 0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_PC10", false,0,0x000003ff,true), | |
75 | HOWTO(R_SPARC_PC22, 10,2,22,true, 0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_PC22", false,0,0x003fffff,true), | |
76 | HOWTO(R_SPARC_WPLT30, 2,2,30,true, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_WPLT30", false,0,0x3fffffff,true), | |
77 | HOWTO(R_SPARC_COPY, 0,0,00,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_COPY", false,0,0x00000000,true), | |
78 | 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), | |
79 | 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), | |
80 | HOWTO(R_SPARC_RELATIVE, 0,0,00,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_RELATIVE",false,0,0x00000000,true), | |
81 | HOWTO(R_SPARC_UA32, 0,0,00,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_UA32", false,0,0x00000000,true), | |
70e818d4 DE |
82 | #ifndef SPARC64_OLD_RELOCS |
83 | /* These aren't implemented yet. */ | |
84 | HOWTO(R_SPARC_PLT32, 0,0,00,false,0,complain_overflow_dont, sparc_elf_notsup_reloc, "R_SPARC_PLT32", false,0,0x00000000,true), | |
85 | HOWTO(R_SPARC_HIPLT22, 0,0,00,false,0,complain_overflow_dont, sparc_elf_notsup_reloc, "R_SPARC_HIPLT22", false,0,0x00000000,true), | |
86 | HOWTO(R_SPARC_LOPLT10, 0,0,00,false,0,complain_overflow_dont, sparc_elf_notsup_reloc, "R_SPARC_LOPLT10", false,0,0x00000000,true), | |
87 | HOWTO(R_SPARC_PCPLT32, 0,0,00,false,0,complain_overflow_dont, sparc_elf_notsup_reloc, "R_SPARC_PCPLT32", false,0,0x00000000,true), | |
88 | HOWTO(R_SPARC_PCPLT22, 0,0,00,false,0,complain_overflow_dont, sparc_elf_notsup_reloc, "R_SPARC_PCPLT22", false,0,0x00000000,true), | |
89 | HOWTO(R_SPARC_PCPLT10, 0,0,00,false,0,complain_overflow_dont, sparc_elf_notsup_reloc, "R_SPARC_PCPLT10", false,0,0x00000000,true), | |
789776d7 | 90 | #endif |
3869b11f DE |
91 | HOWTO(R_SPARC_10, 0,2,10,false,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_10", false,0,0x000003ff,true), |
92 | HOWTO(R_SPARC_11, 0,2,11,false,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_11", false,0,0x000007ff,true), | |
70e818d4 DE |
93 | HOWTO(R_SPARC_64, 0,4,64,false,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_64", false,0,MINUS_ONE, true), |
94 | HOWTO(R_SPARC_OLO10, 0,2,13,false,0,complain_overflow_signed, sparc_elf_notsup_reloc, "R_SPARC_OLO10", false,0,0x00001fff,true), | |
95 | HOWTO(R_SPARC_HH22, 42,2,22,false,0,complain_overflow_unsigned,bfd_elf_generic_reloc, "R_SPARC_HH22", false,0,0x003fffff,true), | |
3869b11f DE |
96 | HOWTO(R_SPARC_HM10, 32,2,10,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_HM10", false,0,0x000003ff,true), |
97 | HOWTO(R_SPARC_LM22, 10,2,22,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_LM22", false,0,0x003fffff,true), | |
70e818d4 | 98 | HOWTO(R_SPARC_PC_HH22, 42,2,22,true, 0,complain_overflow_unsigned,bfd_elf_generic_reloc, "R_SPARC_HH22", false,0,0x003fffff,true), |
3869b11f DE |
99 | HOWTO(R_SPARC_PC_HM10, 32,2,10,true, 0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_HM10", false,0,0x000003ff,true), |
100 | HOWTO(R_SPARC_PC_LM22, 10,2,22,true, 0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_LM22", false,0,0x003fffff,true), | |
101 | HOWTO(R_SPARC_WDISP16, 2,2,16,true, 0,complain_overflow_signed, sparc_elf_wdisp16_reloc,"R_SPARC_WDISP16", false,0,0x00000000,true), | |
70e818d4 | 102 | HOWTO(R_SPARC_WDISP19, 2,2,19,true, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_WDISP19", false,0,0x0007ffff,true), |
3869b11f DE |
103 | 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), |
104 | HOWTO(R_SPARC_7, 0,2, 7,false,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_7", false,0,0x0000007f,true), | |
105 | HOWTO(R_SPARC_5, 0,2, 5,false,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_5", false,0,0x0000001f,true), | |
106 | HOWTO(R_SPARC_6, 0,2, 6,false,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_6", false,0,0x0000003f,true), | |
70e818d4 DE |
107 | HOWTO(R_SPARC_DISP64, 0,4,64,true, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_DISP64", false,0,MINUS_ONE, true), |
108 | HOWTO(R_SPARC_PLT64, 0,4,64,false,0,complain_overflow_bitfield,sparc_elf_notsup_reloc, "R_SPARC_PLT64", false,0,MINUS_ONE, false), | |
109 | HOWTO(R_SPARC_HIX22, 0,4, 0,false,0,complain_overflow_bitfield,sparc_elf_hix22_reloc, "R_SPARC_HIX22", false,0,MINUS_ONE, false), | |
110 | HOWTO(R_SPARC_LOX10, 0,4, 0,false,0,complain_overflow_dont, sparc_elf_lox10_reloc, "R_SPARC_LOX10", false,0,MINUS_ONE, false), | |
111 | HOWTO(R_SPARC_H44, 22,2,22,false,0,complain_overflow_unsigned,bfd_elf_generic_reloc, "R_SPARC_H44", false,0,0x003fffff,false), | |
112 | HOWTO(R_SPARC_M44, 12,2,10,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_M44", false,0,0x000003ff,false), | |
113 | HOWTO(R_SPARC_L44, 0,2,13,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_L44", false,0,0x00000fff,false), | |
114 | HOWTO(R_SPARC_REGISTER, 0,4, 0,false,0,complain_overflow_bitfield,sparc_elf_notsup_reloc, "R_SPARC_REGISTER",false,0,MINUS_ONE, false) | |
3869b11f | 115 | }; |
789776d7 | 116 | |
3869b11f DE |
117 | struct elf_reloc_map { |
118 | unsigned char bfd_reloc_val; | |
119 | unsigned char elf_reloc_val; | |
120 | }; | |
789776d7 | 121 | |
3869b11f | 122 | static CONST struct elf_reloc_map sparc_reloc_map[] = |
789776d7 | 123 | { |
3869b11f DE |
124 | { BFD_RELOC_NONE, R_SPARC_NONE, }, |
125 | { BFD_RELOC_16, R_SPARC_16, }, | |
126 | { BFD_RELOC_8, R_SPARC_8 }, | |
127 | { BFD_RELOC_8_PCREL, R_SPARC_DISP8 }, | |
70e818d4 | 128 | { BFD_RELOC_CTOR, R_SPARC_64 }, |
3869b11f DE |
129 | { BFD_RELOC_32, R_SPARC_32 }, |
130 | { BFD_RELOC_32_PCREL, R_SPARC_DISP32 }, | |
131 | { BFD_RELOC_HI22, R_SPARC_HI22 }, | |
132 | { BFD_RELOC_LO10, R_SPARC_LO10, }, | |
133 | { BFD_RELOC_32_PCREL_S2, R_SPARC_WDISP30 }, | |
134 | { BFD_RELOC_SPARC22, R_SPARC_22 }, | |
135 | { BFD_RELOC_SPARC13, R_SPARC_13 }, | |
136 | { BFD_RELOC_SPARC_GOT10, R_SPARC_GOT10 }, | |
137 | { BFD_RELOC_SPARC_GOT13, R_SPARC_GOT13 }, | |
138 | { BFD_RELOC_SPARC_GOT22, R_SPARC_GOT22 }, | |
139 | { BFD_RELOC_SPARC_PC10, R_SPARC_PC10 }, | |
140 | { BFD_RELOC_SPARC_PC22, R_SPARC_PC22 }, | |
141 | { BFD_RELOC_SPARC_WPLT30, R_SPARC_WPLT30 }, | |
142 | { BFD_RELOC_SPARC_COPY, R_SPARC_COPY }, | |
143 | { BFD_RELOC_SPARC_GLOB_DAT, R_SPARC_GLOB_DAT }, | |
144 | { BFD_RELOC_SPARC_JMP_SLOT, R_SPARC_JMP_SLOT }, | |
145 | { BFD_RELOC_SPARC_RELATIVE, R_SPARC_RELATIVE }, | |
146 | { BFD_RELOC_SPARC_WDISP22, R_SPARC_WDISP22 }, | |
147 | /* ??? Doesn't dwarf use this? */ | |
148 | /*{ BFD_RELOC_SPARC_UA32, R_SPARC_UA32 }, not used?? */ | |
149 | {BFD_RELOC_SPARC_10, R_SPARC_10}, | |
150 | {BFD_RELOC_SPARC_11, R_SPARC_11}, | |
151 | {BFD_RELOC_SPARC_64, R_SPARC_64}, | |
152 | {BFD_RELOC_SPARC_OLO10, R_SPARC_OLO10}, | |
153 | {BFD_RELOC_SPARC_HH22, R_SPARC_HH22}, | |
154 | {BFD_RELOC_SPARC_HM10, R_SPARC_HM10}, | |
155 | {BFD_RELOC_SPARC_LM22, R_SPARC_LM22}, | |
156 | {BFD_RELOC_SPARC_PC_HH22, R_SPARC_PC_HH22}, | |
157 | {BFD_RELOC_SPARC_PC_HM10, R_SPARC_PC_HM10}, | |
158 | {BFD_RELOC_SPARC_PC_LM22, R_SPARC_PC_LM22}, | |
159 | {BFD_RELOC_SPARC_WDISP16, R_SPARC_WDISP16}, | |
160 | {BFD_RELOC_SPARC_WDISP19, R_SPARC_WDISP19}, | |
161 | {BFD_RELOC_SPARC_7, R_SPARC_7}, | |
162 | {BFD_RELOC_SPARC_5, R_SPARC_5}, | |
163 | {BFD_RELOC_SPARC_6, R_SPARC_6}, | |
70e818d4 DE |
164 | {BFD_RELOC_SPARC_DISP64, R_SPARC_DISP64}, |
165 | {BFD_RELOC_SPARC_PLT64, R_SPARC_PLT64}, | |
166 | {BFD_RELOC_SPARC_HIX22, R_SPARC_HIX22}, | |
167 | {BFD_RELOC_SPARC_LOX10, R_SPARC_LOX10}, | |
168 | {BFD_RELOC_SPARC_H44, R_SPARC_H44}, | |
169 | {BFD_RELOC_SPARC_M44, R_SPARC_M44}, | |
170 | {BFD_RELOC_SPARC_L44, R_SPARC_L44}, | |
171 | {BFD_RELOC_SPARC_REGISTER, R_SPARC_REGISTER} | |
789776d7 KR |
172 | }; |
173 | ||
3869b11f DE |
174 | static reloc_howto_type * |
175 | sparc64_elf_reloc_type_lookup (abfd, code) | |
176 | bfd *abfd; | |
177 | bfd_reloc_code_real_type code; | |
178 | { | |
179 | unsigned int i; | |
180 | for (i = 0; i < sizeof (sparc_reloc_map) / sizeof (struct elf_reloc_map); i++) | |
181 | { | |
182 | if (sparc_reloc_map[i].bfd_reloc_val == code) | |
183 | return &sparc64_elf_howto_table[(int) sparc_reloc_map[i].elf_reloc_val]; | |
184 | } | |
185 | return 0; | |
186 | } | |
187 | ||
188 | static void | |
189 | sparc64_elf_info_to_howto (abfd, cache_ptr, dst) | |
190 | bfd *abfd; | |
191 | arelent *cache_ptr; | |
192 | Elf64_Internal_Rela *dst; | |
193 | { | |
194 | BFD_ASSERT (ELF64_R_TYPE (dst->r_info) < (unsigned int) R_SPARC_max); | |
195 | cache_ptr->howto = &sparc64_elf_howto_table[ELF64_R_TYPE (dst->r_info)]; | |
196 | } | |
197 | \f | |
70e818d4 DE |
198 | /* Utility for performing the standard initial work of an instruction |
199 | relocation. | |
200 | *PRELOCATION will contain the relocated item. | |
201 | *PINSN will contain the instruction from the input stream. | |
202 | If the result is `bfd_reloc_other' the caller can continue with | |
203 | performing the relocation. Otherwise it must stop and return the | |
204 | value to its caller. */ | |
d3366d23 DE |
205 | |
206 | static bfd_reloc_status_type | |
70e818d4 DE |
207 | init_insn_reloc (abfd, |
208 | reloc_entry, | |
209 | symbol, | |
210 | data, | |
211 | input_section, | |
212 | output_bfd, | |
213 | prelocation, | |
214 | pinsn) | |
d3366d23 DE |
215 | bfd *abfd; |
216 | arelent *reloc_entry; | |
217 | asymbol *symbol; | |
218 | PTR data; | |
219 | asection *input_section; | |
220 | bfd *output_bfd; | |
70e818d4 DE |
221 | bfd_vma *prelocation; |
222 | bfd_vma *pinsn; | |
d3366d23 DE |
223 | { |
224 | bfd_vma relocation; | |
70e818d4 | 225 | reloc_howto_type *howto = reloc_entry->howto; |
d3366d23 DE |
226 | |
227 | if (output_bfd != (bfd *) NULL | |
228 | && (symbol->flags & BSF_SECTION_SYM) == 0 | |
70e818d4 | 229 | && (! howto->partial_inplace |
d3366d23 DE |
230 | || reloc_entry->addend == 0)) |
231 | { | |
232 | reloc_entry->address += input_section->output_offset; | |
233 | return bfd_reloc_ok; | |
234 | } | |
235 | ||
70e818d4 | 236 | /* This works because partial_inplace == false. */ |
d3366d23 DE |
237 | if (output_bfd != NULL) |
238 | return bfd_reloc_continue; | |
239 | ||
240 | if (reloc_entry->address > input_section->_cooked_size) | |
241 | return bfd_reloc_outofrange; | |
242 | ||
243 | relocation = (symbol->value | |
244 | + symbol->section->output_section->vma | |
245 | + symbol->section->output_offset); | |
246 | relocation += reloc_entry->addend; | |
70e818d4 DE |
247 | if (howto->pc_relative) |
248 | { | |
249 | relocation -= (input_section->output_section->vma | |
250 | + input_section->output_offset); | |
251 | relocation -= reloc_entry->address; | |
252 | } | |
253 | ||
254 | *prelocation = relocation; | |
255 | *pinsn = bfd_get_32 (abfd, (bfd_byte *) data + reloc_entry->address); | |
256 | return bfd_reloc_other; | |
257 | } | |
d3366d23 | 258 | |
70e818d4 DE |
259 | /* For unsupported relocs. */ |
260 | ||
261 | static bfd_reloc_status_type | |
262 | sparc_elf_notsup_reloc (abfd, | |
263 | reloc_entry, | |
264 | symbol, | |
265 | data, | |
266 | input_section, | |
267 | output_bfd, | |
268 | error_message) | |
269 | bfd *abfd; | |
270 | arelent *reloc_entry; | |
271 | asymbol *symbol; | |
272 | PTR data; | |
273 | asection *input_section; | |
274 | bfd *output_bfd; | |
275 | char **error_message; | |
276 | { | |
277 | return bfd_reloc_notsupported; | |
278 | } | |
279 | ||
280 | /* Handle the WDISP16 reloc. */ | |
281 | ||
282 | static bfd_reloc_status_type | |
283 | sparc_elf_wdisp16_reloc (abfd, | |
284 | reloc_entry, | |
285 | symbol, | |
286 | data, | |
287 | input_section, | |
288 | output_bfd, | |
289 | error_message) | |
290 | bfd *abfd; | |
291 | arelent *reloc_entry; | |
292 | asymbol *symbol; | |
293 | PTR data; | |
294 | asection *input_section; | |
295 | bfd *output_bfd; | |
296 | char **error_message; | |
297 | { | |
298 | bfd_vma relocation; | |
299 | bfd_vma insn; | |
300 | bfd_reloc_status_type status; | |
301 | ||
302 | status = init_insn_reloc (abfd, reloc_entry, symbol, data, | |
303 | input_section, output_bfd, &relocation, &insn); | |
304 | if (status != bfd_reloc_other) | |
305 | return status; | |
306 | ||
307 | insn = (insn & ~0x303fff) | ((((relocation >> 2) & 0xc000) << 6) | |
308 | | ((relocation >> 2) & 0x3fff)); | |
309 | bfd_put_32 (abfd, insn, (bfd_byte *) data + reloc_entry->address); | |
d3366d23 DE |
310 | |
311 | if ((bfd_signed_vma) relocation < - 0x40000 | |
312 | || (bfd_signed_vma) relocation > 0x3ffff) | |
313 | return bfd_reloc_overflow; | |
314 | else | |
315 | return bfd_reloc_ok; | |
316 | } | |
70e818d4 DE |
317 | |
318 | /* Handle the HIX22 reloc. */ | |
319 | ||
320 | static bfd_reloc_status_type | |
321 | sparc_elf_hix22_reloc (abfd, | |
322 | reloc_entry, | |
323 | symbol, | |
324 | data, | |
325 | input_section, | |
326 | output_bfd, | |
327 | error_message) | |
328 | bfd *abfd; | |
329 | arelent *reloc_entry; | |
330 | asymbol *symbol; | |
331 | PTR data; | |
332 | asection *input_section; | |
333 | bfd *output_bfd; | |
334 | char **error_message; | |
335 | { | |
336 | bfd_vma relocation; | |
337 | bfd_vma insn; | |
338 | bfd_reloc_status_type status; | |
339 | ||
340 | status = init_insn_reloc (abfd, reloc_entry, symbol, data, | |
341 | input_section, output_bfd, &relocation, &insn); | |
342 | if (status != bfd_reloc_other) | |
343 | return status; | |
344 | ||
345 | relocation ^= MINUS_ONE; | |
346 | insn = (insn & ~0x3fffff) | ((relocation >> 10) & 0x3fffff); | |
347 | bfd_put_32 (abfd, insn, (bfd_byte *) data + reloc_entry->address); | |
348 | ||
349 | if ((relocation & ~ (bfd_vma) 0xffffffff) != 0) | |
350 | return bfd_reloc_overflow; | |
351 | else | |
352 | return bfd_reloc_ok; | |
353 | } | |
354 | ||
355 | /* Handle the LOX10 reloc. */ | |
356 | ||
357 | static bfd_reloc_status_type | |
358 | sparc_elf_lox10_reloc (abfd, | |
359 | reloc_entry, | |
360 | symbol, | |
361 | data, | |
362 | input_section, | |
363 | output_bfd, | |
364 | error_message) | |
365 | bfd *abfd; | |
366 | arelent *reloc_entry; | |
367 | asymbol *symbol; | |
368 | PTR data; | |
369 | asection *input_section; | |
370 | bfd *output_bfd; | |
371 | char **error_message; | |
372 | { | |
373 | bfd_vma relocation; | |
374 | bfd_vma insn; | |
375 | bfd_reloc_status_type status; | |
376 | ||
377 | status = init_insn_reloc (abfd, reloc_entry, symbol, data, | |
378 | input_section, output_bfd, &relocation, &insn); | |
379 | if (status != bfd_reloc_other) | |
380 | return status; | |
381 | ||
382 | insn = (insn & ~0x1fff) | 0x1c00 | (relocation & 0x3ff); | |
383 | bfd_put_32 (abfd, insn, (bfd_byte *) data + reloc_entry->address); | |
384 | ||
385 | return bfd_reloc_ok; | |
386 | } | |
3869b11f | 387 | \f |
d3366d23 DE |
388 | /* Relocate a SPARC64 ELF section. */ |
389 | ||
390 | static boolean | |
391 | sparc64_elf_relocate_section (output_bfd, info, input_bfd, input_section, | |
392 | contents, relocs, local_syms, local_sections) | |
393 | bfd *output_bfd; | |
394 | struct bfd_link_info *info; | |
395 | bfd *input_bfd; | |
396 | asection *input_section; | |
397 | bfd_byte *contents; | |
398 | Elf_Internal_Rela *relocs; | |
399 | Elf_Internal_Sym *local_syms; | |
400 | asection **local_sections; | |
789776d7 | 401 | { |
d3366d23 DE |
402 | Elf_Internal_Shdr *symtab_hdr; |
403 | struct elf_link_hash_entry **sym_hashes; | |
404 | Elf_Internal_Rela *rel; | |
405 | Elf_Internal_Rela *relend; | |
406 | ||
407 | symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr; | |
408 | sym_hashes = elf_sym_hashes (input_bfd); | |
409 | ||
410 | rel = relocs; | |
411 | relend = relocs + input_section->reloc_count; | |
412 | for (; rel < relend; rel++) | |
413 | { | |
414 | int r_type; | |
415 | reloc_howto_type *howto; | |
416 | long r_symndx; | |
417 | struct elf_link_hash_entry *h; | |
418 | Elf_Internal_Sym *sym; | |
419 | asection *sec; | |
420 | bfd_vma relocation; | |
421 | bfd_reloc_status_type r; | |
422 | ||
423 | r_type = ELF64_R_TYPE (rel->r_info); | |
424 | if (r_type < 0 || r_type >= (int) R_SPARC_max) | |
425 | { | |
426 | bfd_set_error (bfd_error_bad_value); | |
427 | return false; | |
428 | } | |
3869b11f | 429 | howto = sparc64_elf_howto_table + r_type; |
d3366d23 DE |
430 | |
431 | r_symndx = ELF64_R_SYM (rel->r_info); | |
432 | ||
433 | if (info->relocateable) | |
434 | { | |
435 | /* This is a relocateable link. We don't have to change | |
436 | anything, unless the reloc is against a section symbol, | |
437 | in which case we have to adjust according to where the | |
438 | section symbol winds up in the output section. */ | |
439 | if (r_symndx < symtab_hdr->sh_info) | |
440 | { | |
441 | sym = local_syms + r_symndx; | |
442 | if (ELF_ST_TYPE (sym->st_info) == STT_SECTION) | |
443 | { | |
444 | sec = local_sections[r_symndx]; | |
445 | rel->r_addend += sec->output_offset + sym->st_value; | |
446 | } | |
447 | } | |
448 | ||
449 | continue; | |
450 | } | |
451 | ||
452 | /* This is a final link. */ | |
453 | h = NULL; | |
454 | sym = NULL; | |
455 | sec = NULL; | |
456 | if (r_symndx < symtab_hdr->sh_info) | |
457 | { | |
458 | sym = local_syms + r_symndx; | |
459 | sec = local_sections[r_symndx]; | |
460 | relocation = (sec->output_section->vma | |
461 | + sec->output_offset | |
462 | + sym->st_value); | |
463 | } | |
464 | else | |
465 | { | |
466 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
3869b11f DE |
467 | while (h->root.type == bfd_link_hash_indirect |
468 | || h->root.type == bfd_link_hash_warning) | |
469 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
d3366d23 DE |
470 | if (h->root.type == bfd_link_hash_defined |
471 | || h->root.type == bfd_link_hash_defweak) | |
472 | { | |
473 | sec = h->root.u.def.section; | |
474 | relocation = (h->root.u.def.value | |
475 | + sec->output_section->vma | |
476 | + sec->output_offset); | |
477 | } | |
478 | else if (h->root.type == bfd_link_hash_undefweak) | |
479 | relocation = 0; | |
480 | else | |
481 | { | |
482 | if (! ((*info->callbacks->undefined_symbol) | |
483 | (info, h->root.root.string, input_bfd, | |
484 | input_section, rel->r_offset))) | |
485 | return false; | |
486 | relocation = 0; | |
487 | } | |
488 | } | |
489 | ||
70e818d4 | 490 | switch (r_type) |
d3366d23 | 491 | { |
70e818d4 DE |
492 | case R_SPARC_OLO10: |
493 | { | |
494 | bfd_vma x; | |
495 | ||
496 | relocation += rel->r_addend; | |
497 | relocation = (relocation & 0x3ff) + ELF64_R_TYPE_DATA (rel->r_info); | |
498 | ||
499 | x = bfd_get_32 (input_bfd, contents + rel->r_offset); | |
500 | x = (x & ~0x1fff) | (relocation & 0x1fff); | |
501 | bfd_put_32 (input_bfd, x, contents + rel->r_offset); | |
502 | ||
503 | r = bfd_check_overflow (howto->complain_on_overflow, | |
504 | howto->bitsize, howto->rightshift, | |
505 | relocation); | |
506 | } | |
507 | break; | |
508 | ||
509 | case R_SPARC_WDISP16: | |
510 | { | |
511 | bfd_vma x; | |
512 | ||
513 | relocation += rel->r_addend; | |
514 | /* Adjust for pc-relative-ness. */ | |
515 | relocation -= (input_section->output_section->vma | |
516 | + input_section->output_offset); | |
517 | relocation -= rel->r_offset; | |
518 | ||
519 | x = bfd_get_32 (input_bfd, contents + rel->r_offset); | |
520 | x = (x & ~0x303fff) | ((((relocation >> 2) & 0xc000) << 6) | |
521 | | ((relocation >> 2) & 0x3fff)); | |
522 | bfd_put_32 (input_bfd, x, contents + rel->r_offset); | |
523 | ||
524 | r = bfd_check_overflow (howto->complain_on_overflow, | |
525 | howto->bitsize, howto->rightshift, | |
526 | relocation); | |
527 | } | |
528 | break; | |
529 | ||
530 | case R_SPARC_HIX22: | |
531 | { | |
532 | bfd_vma x; | |
533 | ||
534 | relocation += rel->r_addend; | |
535 | relocation = relocation ^ MINUS_ONE; | |
536 | ||
537 | x = bfd_get_32 (input_bfd, contents + rel->r_offset); | |
538 | x = (x & ~0x3fffff) | ((relocation >> 10) & 0x3fffff); | |
539 | bfd_put_32 (input_bfd, x, contents + rel->r_offset); | |
540 | ||
541 | r = bfd_check_overflow (howto->complain_on_overflow, | |
542 | howto->bitsize, howto->rightshift, | |
543 | relocation); | |
544 | } | |
545 | break; | |
546 | ||
547 | case R_SPARC_LOX10: | |
548 | { | |
549 | bfd_vma x; | |
550 | ||
551 | relocation += rel->r_addend; | |
552 | relocation = (relocation & 0x3ff) | 0x1c00; | |
553 | ||
554 | x = bfd_get_32 (input_bfd, contents + rel->r_offset); | |
555 | x = (x & ~0x1fff) | relocation; | |
556 | bfd_put_32 (input_bfd, x, contents + rel->r_offset); | |
d3366d23 | 557 | |
d3366d23 | 558 | r = bfd_reloc_ok; |
70e818d4 DE |
559 | } |
560 | break; | |
561 | ||
562 | default: | |
563 | r = _bfd_final_link_relocate (howto, input_bfd, input_section, | |
564 | contents, rel->r_offset, | |
565 | relocation, rel->r_addend); | |
566 | break; | |
d3366d23 DE |
567 | } |
568 | ||
569 | if (r != bfd_reloc_ok) | |
570 | { | |
571 | switch (r) | |
572 | { | |
573 | default: | |
574 | case bfd_reloc_outofrange: | |
575 | abort (); | |
576 | case bfd_reloc_overflow: | |
577 | { | |
578 | const char *name; | |
579 | ||
580 | if (h != NULL) | |
581 | name = h->root.root.string; | |
582 | else | |
583 | { | |
584 | name = (bfd_elf_string_from_elf_section | |
585 | (input_bfd, | |
586 | symtab_hdr->sh_link, | |
587 | sym->st_name)); | |
588 | if (name == NULL) | |
589 | return false; | |
590 | if (*name == '\0') | |
591 | name = bfd_section_name (input_bfd, sec); | |
592 | } | |
593 | if (! ((*info->callbacks->reloc_overflow) | |
594 | (info, name, howto->name, (bfd_vma) 0, | |
595 | input_bfd, input_section, rel->r_offset))) | |
596 | return false; | |
597 | } | |
598 | break; | |
599 | } | |
600 | } | |
601 | } | |
602 | ||
603 | return true; | |
604 | } | |
605 | ||
606 | /* Set the right machine number for a SPARC64 ELF file. */ | |
607 | ||
608 | static boolean | |
609 | sparc64_elf_object_p (abfd) | |
610 | bfd *abfd; | |
611 | { | |
612 | return bfd_default_set_arch_mach (abfd, bfd_arch_sparc, bfd_mach_sparc_v9); | |
789776d7 KR |
613 | } |
614 | ||
615 | #define TARGET_BIG_SYM bfd_elf64_sparc_vec | |
616 | #define TARGET_BIG_NAME "elf64-sparc" | |
617 | #define ELF_ARCH bfd_arch_sparc | |
d3366d23 DE |
618 | #define ELF_MACHINE_CODE EM_SPARC64 |
619 | #define ELF_MAXPAGESIZE 0x100000 | |
620 | ||
3869b11f DE |
621 | #define elf_info_to_howto sparc64_elf_info_to_howto |
622 | #define bfd_elf64_bfd_reloc_type_lookup sparc64_elf_reloc_type_lookup | |
d3366d23 DE |
623 | #define elf_backend_relocate_section sparc64_elf_relocate_section |
624 | #define elf_backend_object_p sparc64_elf_object_p | |
789776d7 KR |
625 | |
626 | #include "elf64-target.h" |