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1 | /* `a.out.adobe' differences from standard a.out files |
1 | /* `a.out.adobe' differences from standard a.out files |
2 | 2 | ||
3 | Copyright 2001, 2010 Free Software Foundation, Inc. |
3 | Copyright (C) 2001-2015 Free Software Foundation, Inc. |
4 | 4 | ||
5 | This program is free software; you can redistribute it and/or modify |
5 | This program is free software; you can redistribute it and/or modify |
6 | it under the terms of the GNU General Public License as published by |
6 | it under the terms of the GNU General Public License as published by |
7 | the Free Software Foundation; either version 3 of the License, or |
7 | the Free Software Foundation; either version 3 of the License, or |
8 | (at your option) any later version. |
8 | (at your option) any later version. |
9 | 9 | ||
10 | This program is distributed in the hope that it will be useful, |
10 | This program is distributed in the hope that it will be useful, |
11 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
11 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
13 | GNU General Public License for more details. |
13 | GNU General Public License for more details. |
14 | 14 | ||
15 | You should have received a copy of the GNU General Public License |
15 | You should have received a copy of the GNU General Public License |
16 | along with this program; if not, write to the Free Software |
16 | along with this program; if not, write to the Free Software |
17 | Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, |
17 | Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, |
18 | MA 02110-1301, USA. */ |
18 | MA 02110-1301, USA. */ |
19 | 19 | ||
20 | #ifndef __A_OUT_ADOBE_H__ |
20 | #ifndef __A_OUT_ADOBE_H__ |
21 | #define __A_OUT_ADOBE_H__ |
21 | #define __A_OUT_ADOBE_H__ |
22 | 22 | ||
23 | #define BYTES_IN_WORD 4 |
23 | #define BYTES_IN_WORD 4 |
24 | 24 | ||
25 | /* Struct external_exec is the same. */ |
25 | /* Struct external_exec is the same. */ |
26 | 26 | ||
27 | /* This is the layout on disk of the 32-bit or 64-bit exec header. */ |
27 | /* This is the layout on disk of the 32-bit or 64-bit exec header. */ |
28 | 28 | ||
29 | struct external_exec |
29 | struct external_exec |
30 | { |
30 | { |
31 | bfd_byte e_info[4]; /* magic number and stuff */ |
31 | bfd_byte e_info[4]; /* magic number and stuff */ |
32 | bfd_byte e_text[BYTES_IN_WORD]; /* length of text section in bytes */ |
32 | bfd_byte e_text[BYTES_IN_WORD]; /* length of text section in bytes */ |
33 | bfd_byte e_data[BYTES_IN_WORD]; /* length of data section in bytes */ |
33 | bfd_byte e_data[BYTES_IN_WORD]; /* length of data section in bytes */ |
34 | bfd_byte e_bss[BYTES_IN_WORD]; /* length of bss area in bytes */ |
34 | bfd_byte e_bss[BYTES_IN_WORD]; /* length of bss area in bytes */ |
35 | bfd_byte e_syms[BYTES_IN_WORD]; /* length of symbol table in bytes */ |
35 | bfd_byte e_syms[BYTES_IN_WORD]; /* length of symbol table in bytes */ |
36 | bfd_byte e_entry[BYTES_IN_WORD]; /* start address */ |
36 | bfd_byte e_entry[BYTES_IN_WORD]; /* start address */ |
37 | bfd_byte e_trsize[BYTES_IN_WORD]; /* length of text relocation info */ |
37 | bfd_byte e_trsize[BYTES_IN_WORD]; /* length of text relocation info */ |
38 | bfd_byte e_drsize[BYTES_IN_WORD]; /* length of data relocation info */ |
38 | bfd_byte e_drsize[BYTES_IN_WORD]; /* length of data relocation info */ |
39 | }; |
39 | }; |
40 | 40 | ||
41 | #define EXEC_BYTES_SIZE (4 + BYTES_IN_WORD * 7) |
41 | #define EXEC_BYTES_SIZE (4 + BYTES_IN_WORD * 7) |
42 | 42 | ||
43 | /* Magic numbers for a.out files */ |
43 | /* Magic numbers for a.out files */ |
44 | 44 | ||
45 | #undef ZMAGIC |
45 | #undef ZMAGIC |
46 | #define ZMAGIC 0xAD0BE /* Cute, eh? */ |
46 | #define ZMAGIC 0xAD0BE /* Cute, eh? */ |
47 | #undef OMAGIC |
47 | #undef OMAGIC |
48 | #undef NMAGIC |
48 | #undef NMAGIC |
49 | 49 | ||
50 | #define N_BADMAG(x) ((x).a_info != ZMAGIC) |
50 | #define N_BADMAG(x) ((x).a_info != ZMAGIC) |
51 | 51 | ||
52 | /* By default, segment size is constant. But some machines override this |
52 | /* By default, segment size is constant. But some machines override this |
53 | to be a function of the a.out header (e.g. machine type). */ |
53 | to be a function of the a.out header (e.g. machine type). */ |
54 | #ifndef N_SEGSIZE |
54 | #ifndef N_SEGSIZE |
55 | #define N_SEGSIZE(x) SEGMENT_SIZE |
55 | #define N_SEGSIZE(x) SEGMENT_SIZE |
56 | #endif |
56 | #endif |
57 | #undef N_SEGSIZE /* FIXMEXXXX */ |
57 | #undef N_SEGSIZE /* FIXMEXXXX */ |
58 | 58 | ||
59 | /* Segment information for the a.out.Adobe format is specified after the |
59 | /* Segment information for the a.out.Adobe format is specified after the |
60 | file header. It contains N segment descriptors, followed by one with |
60 | file header. It contains N segment descriptors, followed by one with |
61 | a type of zero. |
61 | a type of zero. |
62 | 62 | ||
63 | The actual text of the segments starts at N_TXTOFF in the file, |
63 | The actual text of the segments starts at N_TXTOFF in the file, |
64 | regardless of how many or how few segment headers there are. */ |
64 | regardless of how many or how few segment headers there are. */ |
65 | 65 | ||
66 | struct external_segdesc { |
66 | struct external_segdesc { |
67 | unsigned char e_type[1]; |
67 | unsigned char e_type[1]; |
68 | unsigned char e_size[3]; |
68 | unsigned char e_size[3]; |
69 | unsigned char e_virtbase[4]; |
69 | unsigned char e_virtbase[4]; |
70 | unsigned char e_filebase[4]; |
70 | unsigned char e_filebase[4]; |
71 | }; |
71 | }; |
72 | 72 | ||
73 | struct internal_segdesc { |
73 | struct internal_segdesc { |
74 | unsigned int a_type:8; /* Segment type N_TEXT, N_DATA, 0 */ |
74 | unsigned int a_type:8; /* Segment type N_TEXT, N_DATA, 0 */ |
75 | unsigned int a_size:24; /* Segment size */ |
75 | unsigned int a_size:24; /* Segment size */ |
76 | bfd_vma a_virtbase; /* Virtual address */ |
76 | bfd_vma a_virtbase; /* Virtual address */ |
77 | unsigned int a_filebase; /* Base address in object file */ |
77 | unsigned int a_filebase; /* Base address in object file */ |
78 | }; |
78 | }; |
79 | 79 | ||
80 | #define N_TXTADDR(x) \ |
80 | #define N_TXTADDR(x) \ |
81 | 81 | ||
82 | /* This is documented to be at 1024, but appears to really be at 2048. |
82 | /* This is documented to be at 1024, but appears to really be at 2048. |
83 | FIXME?! */ |
83 | FIXME?! */ |
84 | #define N_TXTOFF(x) 2048 |
84 | #define N_TXTOFF(x) 2048 |
85 | 85 | ||
86 | #define N_TXTSIZE(x) ((x).a_text) |
86 | #define N_TXTSIZE(x) ((x).a_text) |
87 | 87 | ||
88 | #define N_DATADDR(x) |
88 | #define N_DATADDR(x) |
89 | 89 | ||
90 | #define N_BSSADDR(x) |
90 | #define N_BSSADDR(x) |
91 | 91 | ||
92 | /* Offsets of the various portions of the file after the text segment. */ |
92 | /* Offsets of the various portions of the file after the text segment. */ |
93 | 93 | ||
94 | #define N_DATOFF(x) ( N_TXTOFF(x) + N_TXTSIZE(x) ) |
94 | #define N_DATOFF(x) ( N_TXTOFF(x) + N_TXTSIZE(x) ) |
95 | #define N_TRELOFF(x) ( N_DATOFF(x) + (x).a_data ) |
95 | #define N_TRELOFF(x) ( N_DATOFF(x) + (x).a_data ) |
96 | #define N_DRELOFF(x) ( N_TRELOFF(x) + (x).a_trsize ) |
96 | #define N_DRELOFF(x) ( N_TRELOFF(x) + (x).a_trsize ) |
97 | #define N_SYMOFF(x) ( N_DRELOFF(x) + (x).a_drsize ) |
97 | #define N_SYMOFF(x) ( N_DRELOFF(x) + (x).a_drsize ) |
98 | #define N_STROFF(x) ( N_SYMOFF(x) + (x).a_syms ) |
98 | #define N_STROFF(x) ( N_SYMOFF(x) + (x).a_syms ) |
99 | 99 | ||
100 | /* Symbols */ |
100 | /* Symbols */ |
101 | struct external_nlist { |
101 | struct external_nlist { |
102 | bfd_byte e_strx[BYTES_IN_WORD]; /* index into string table of name */ |
102 | bfd_byte e_strx[BYTES_IN_WORD]; /* index into string table of name */ |
103 | bfd_byte e_type[1]; /* type of symbol */ |
103 | bfd_byte e_type[1]; /* type of symbol */ |
104 | bfd_byte e_other[1]; /* misc info (usually empty) */ |
104 | bfd_byte e_other[1]; /* misc info (usually empty) */ |
105 | bfd_byte e_desc[2]; /* description field */ |
105 | bfd_byte e_desc[2]; /* description field */ |
106 | bfd_byte e_value[BYTES_IN_WORD]; /* value of symbol */ |
106 | bfd_byte e_value[BYTES_IN_WORD]; /* value of symbol */ |
107 | }; |
107 | }; |
108 | 108 | ||
109 | #define EXTERNAL_NLIST_SIZE (BYTES_IN_WORD+4+BYTES_IN_WORD) |
109 | #define EXTERNAL_NLIST_SIZE (BYTES_IN_WORD+4+BYTES_IN_WORD) |
110 | 110 | ||
111 | struct internal_nlist { |
111 | struct internal_nlist { |
112 | unsigned long n_strx; /* index into string table of name */ |
112 | unsigned long n_strx; /* index into string table of name */ |
113 | unsigned char n_type; /* type of symbol */ |
113 | unsigned char n_type; /* type of symbol */ |
114 | unsigned char n_other; /* misc info (usually empty) */ |
114 | unsigned char n_other; /* misc info (usually empty) */ |
115 | unsigned short n_desc; /* description field */ |
115 | unsigned short n_desc; /* description field */ |
116 | bfd_vma n_value; /* value of symbol */ |
116 | bfd_vma n_value; /* value of symbol */ |
117 | }; |
117 | }; |
118 | 118 | ||
119 | /* The n_type field is the symbol type, containing: */ |
119 | /* The n_type field is the symbol type, containing: */ |
120 | 120 | ||
121 | #define N_UNDF 0 /* Undefined symbol */ |
121 | #define N_UNDF 0 /* Undefined symbol */ |
122 | #define N_ABS 2 /* Absolute symbol -- defined at particular addr */ |
122 | #define N_ABS 2 /* Absolute symbol -- defined at particular addr */ |
123 | #define N_TEXT 4 /* Text sym -- defined at offset in text seg */ |
123 | #define N_TEXT 4 /* Text sym -- defined at offset in text seg */ |
124 | #define N_DATA 6 /* Data sym -- defined at offset in data seg */ |
124 | #define N_DATA 6 /* Data sym -- defined at offset in data seg */ |
125 | #define N_BSS 8 /* BSS sym -- defined at offset in zero'd seg */ |
125 | #define N_BSS 8 /* BSS sym -- defined at offset in zero'd seg */ |
126 | #define N_COMM 0x12 /* Common symbol (visible after shared lib dynlink) */ |
126 | #define N_COMM 0x12 /* Common symbol (visible after shared lib dynlink) */ |
127 | #define N_FN 0x1f /* File name of .o file */ |
127 | #define N_FN 0x1f /* File name of .o file */ |
128 | #define N_FN_SEQ 0x0C /* N_FN from Sequent compilers (sigh) */ |
128 | #define N_FN_SEQ 0x0C /* N_FN from Sequent compilers (sigh) */ |
129 | /* Note: N_EXT can only be usefully OR-ed with N_UNDF, N_ABS, N_TEXT, |
129 | /* Note: N_EXT can only be usefully OR-ed with N_UNDF, N_ABS, N_TEXT, |
130 | N_DATA, or N_BSS. When the low-order bit of other types is set, |
130 | N_DATA, or N_BSS. When the low-order bit of other types is set, |
131 | (e.g. N_WARNING versus N_FN), they are two different types. */ |
131 | (e.g. N_WARNING versus N_FN), they are two different types. */ |
132 | #define N_EXT 1 /* External symbol (as opposed to local-to-this-file) */ |
132 | #define N_EXT 1 /* External symbol (as opposed to local-to-this-file) */ |
133 | #define N_TYPE 0x1e |
133 | #define N_TYPE 0x1e |
134 | #define N_STAB 0xe0 /* If any of these bits are on, it's a debug symbol */ |
134 | #define N_STAB 0xe0 /* If any of these bits are on, it's a debug symbol */ |
135 | 135 | ||
136 | #define N_INDR 0x0a |
136 | #define N_INDR 0x0a |
137 | 137 | ||
138 | /* The following symbols refer to set elements. |
138 | /* The following symbols refer to set elements. |
139 | All the N_SET[ATDB] symbols with the same name form one set. |
139 | All the N_SET[ATDB] symbols with the same name form one set. |
140 | Space is allocated for the set in the text section, and each set |
140 | Space is allocated for the set in the text section, and each set |
141 | elements value is stored into one word of the space. |
141 | elements value is stored into one word of the space. |
142 | The first word of the space is the length of the set (number of elements). |
142 | The first word of the space is the length of the set (number of elements). |
143 | 143 | ||
144 | The address of the set is made into an N_SETV symbol |
144 | The address of the set is made into an N_SETV symbol |
145 | whose name is the same as the name of the set. |
145 | whose name is the same as the name of the set. |
146 | This symbol acts like a N_DATA global symbol |
146 | This symbol acts like a N_DATA global symbol |
147 | in that it can satisfy undefined external references. */ |
147 | in that it can satisfy undefined external references. */ |
148 | 148 | ||
149 | /* These appear as input to LD, in a .o file. */ |
149 | /* These appear as input to LD, in a .o file. */ |
150 | #define N_SETA 0x14 /* Absolute set element symbol */ |
150 | #define N_SETA 0x14 /* Absolute set element symbol */ |
151 | #define N_SETT 0x16 /* Text set element symbol */ |
151 | #define N_SETT 0x16 /* Text set element symbol */ |
152 | #define N_SETD 0x18 /* Data set element symbol */ |
152 | #define N_SETD 0x18 /* Data set element symbol */ |
153 | #define N_SETB 0x1A /* Bss set element symbol */ |
153 | #define N_SETB 0x1A /* Bss set element symbol */ |
154 | 154 | ||
155 | /* This is output from LD. */ |
155 | /* This is output from LD. */ |
156 | #define N_SETV 0x1C /* Pointer to set vector in data area. */ |
156 | #define N_SETV 0x1C /* Pointer to set vector in data area. */ |
157 | 157 | ||
158 | /* Warning symbol. The text gives a warning message, the next symbol |
158 | /* Warning symbol. The text gives a warning message, the next symbol |
159 | in the table will be undefined. When the symbol is referenced, the |
159 | in the table will be undefined. When the symbol is referenced, the |
160 | message is printed. */ |
160 | message is printed. */ |
161 | 161 | ||
162 | #define N_WARNING 0x1e |
162 | #define N_WARNING 0x1e |
163 | 163 | ||
164 | /* Relocations |
164 | /* Relocations |
165 | 165 | ||
166 | There are two types of relocation flavours for a.out systems, |
166 | There are two types of relocation flavours for a.out systems, |
167 | standard and extended. The standard form is used on systems where the |
167 | standard and extended. The standard form is used on systems where the |
168 | instruction has room for all the bits of an offset to the operand, whilst |
168 | instruction has room for all the bits of an offset to the operand, whilst |
169 | the extended form is used when an address operand has to be split over n |
169 | the extended form is used when an address operand has to be split over n |
170 | instructions. Eg, on the 68k, each move instruction can reference |
170 | instructions. Eg, on the 68k, each move instruction can reference |
171 | the target with a displacement of 16 or 32 bits. On the sparc, move |
171 | the target with a displacement of 16 or 32 bits. On the sparc, move |
172 | instructions use an offset of 14 bits, so the offset is stored in |
172 | instructions use an offset of 14 bits, so the offset is stored in |
173 | the reloc field, and the data in the section is ignored. |
173 | the reloc field, and the data in the section is ignored. |
174 | */ |
174 | */ |
175 | 175 | ||
176 | /* This structure describes a single relocation to be performed. |
176 | /* This structure describes a single relocation to be performed. |
177 | The text-relocation section of the file is a vector of these structures, |
177 | The text-relocation section of the file is a vector of these structures, |
178 | all of which apply to the text section. |
178 | all of which apply to the text section. |
179 | Likewise, the data-relocation section applies to the data section. */ |
179 | Likewise, the data-relocation section applies to the data section. */ |
180 | 180 | ||
181 | struct reloc_std_external { |
181 | struct reloc_std_external { |
182 | bfd_byte r_address[BYTES_IN_WORD]; /* offset of of data to relocate */ |
182 | bfd_byte r_address[BYTES_IN_WORD]; /* offset of of data to relocate */ |
183 | bfd_byte r_index[3]; /* symbol table index of symbol */ |
183 | bfd_byte r_index[3]; /* symbol table index of symbol */ |
184 | bfd_byte r_type[1]; /* relocation type */ |
184 | bfd_byte r_type[1]; /* relocation type */ |
185 | }; |
185 | }; |
186 | 186 | ||
187 | #define RELOC_STD_BITS_PCREL_BIG 0x80 |
187 | #define RELOC_STD_BITS_PCREL_BIG 0x80 |
188 | #define RELOC_STD_BITS_PCREL_LITTLE 0x01 |
188 | #define RELOC_STD_BITS_PCREL_LITTLE 0x01 |
189 | 189 | ||
190 | #define RELOC_STD_BITS_LENGTH_BIG 0x60 |
190 | #define RELOC_STD_BITS_LENGTH_BIG 0x60 |
191 | #define RELOC_STD_BITS_LENGTH_SH_BIG 5 /* To shift to units place */ |
191 | #define RELOC_STD_BITS_LENGTH_SH_BIG 5 /* To shift to units place */ |
192 | #define RELOC_STD_BITS_LENGTH_LITTLE 0x06 |
192 | #define RELOC_STD_BITS_LENGTH_LITTLE 0x06 |
193 | #define RELOC_STD_BITS_LENGTH_SH_LITTLE 1 |
193 | #define RELOC_STD_BITS_LENGTH_SH_LITTLE 1 |
194 | 194 | ||
195 | #define RELOC_STD_BITS_EXTERN_BIG 0x10 |
195 | #define RELOC_STD_BITS_EXTERN_BIG 0x10 |
196 | #define RELOC_STD_BITS_EXTERN_LITTLE 0x08 |
196 | #define RELOC_STD_BITS_EXTERN_LITTLE 0x08 |
197 | 197 | ||
198 | #define RELOC_STD_BITS_BASEREL_BIG 0x08 |
198 | #define RELOC_STD_BITS_BASEREL_BIG 0x08 |
199 | #define RELOC_STD_BITS_BASEREL_LITTLE 0x08 |
199 | #define RELOC_STD_BITS_BASEREL_LITTLE 0x08 |
200 | 200 | ||
201 | #define RELOC_STD_BITS_JMPTABLE_BIG 0x04 |
201 | #define RELOC_STD_BITS_JMPTABLE_BIG 0x04 |
202 | #define RELOC_STD_BITS_JMPTABLE_LITTLE 0x04 |
202 | #define RELOC_STD_BITS_JMPTABLE_LITTLE 0x04 |
203 | 203 | ||
204 | #define RELOC_STD_BITS_RELATIVE_BIG 0x02 |
204 | #define RELOC_STD_BITS_RELATIVE_BIG 0x02 |
205 | #define RELOC_STD_BITS_RELATIVE_LITTLE 0x02 |
205 | #define RELOC_STD_BITS_RELATIVE_LITTLE 0x02 |
206 | 206 | ||
207 | #define RELOC_STD_SIZE (BYTES_IN_WORD + 3 + 1) /* Bytes per relocation entry */ |
207 | #define RELOC_STD_SIZE (BYTES_IN_WORD + 3 + 1) /* Bytes per relocation entry */ |
208 | 208 | ||
209 | struct reloc_std_internal |
209 | struct reloc_std_internal |
210 | { |
210 | { |
211 | bfd_vma r_address; /* Address (within segment) to be relocated. */ |
211 | bfd_vma r_address; /* Address (within segment) to be relocated. */ |
212 | /* The meaning of r_symbolnum depends on r_extern. */ |
212 | /* The meaning of r_symbolnum depends on r_extern. */ |
213 | unsigned int r_symbolnum:24; |
213 | unsigned int r_symbolnum:24; |
214 | /* Nonzero means value is a pc-relative offset |
214 | /* Nonzero means value is a pc-relative offset |
215 | and it should be relocated for changes in its own address |
215 | and it should be relocated for changes in its own address |
216 | as well as for changes in the symbol or section specified. */ |
216 | as well as for changes in the symbol or section specified. */ |
217 | unsigned int r_pcrel:1; |
217 | unsigned int r_pcrel:1; |
218 | /* Length (as exponent of 2) of the field to be relocated. |
218 | /* Length (as exponent of 2) of the field to be relocated. |
219 | Thus, a value of 2 indicates 1<<2 bytes. */ |
219 | Thus, a value of 2 indicates 1<<2 bytes. */ |
220 | unsigned int r_length:2; |
220 | unsigned int r_length:2; |
221 | /* 1 => relocate with value of symbol. |
221 | /* 1 => relocate with value of symbol. |
222 | r_symbolnum is the index of the symbol |
222 | r_symbolnum is the index of the symbol |
223 | in files the symbol table. |
223 | in files the symbol table. |
224 | 0 => relocate with the address of a segment. |
224 | 0 => relocate with the address of a segment. |
225 | r_symbolnum is N_TEXT, N_DATA, N_BSS or N_ABS |
225 | r_symbolnum is N_TEXT, N_DATA, N_BSS or N_ABS |
226 | (the N_EXT bit may be set also, but signifies nothing). */ |
226 | (the N_EXT bit may be set also, but signifies nothing). */ |
227 | unsigned int r_extern:1; |
227 | unsigned int r_extern:1; |
228 | /* The next three bits are for SunOS shared libraries, and seem to |
228 | /* The next three bits are for SunOS shared libraries, and seem to |
229 | be undocumented. */ |
229 | be undocumented. */ |
230 | unsigned int r_baserel:1; /* Linkage table relative */ |
230 | unsigned int r_baserel:1; /* Linkage table relative */ |
231 | unsigned int r_jmptable:1; /* pc-relative to jump table */ |
231 | unsigned int r_jmptable:1; /* pc-relative to jump table */ |
232 | unsigned int r_relative:1; /* "relative relocation" */ |
232 | unsigned int r_relative:1; /* "relative relocation" */ |
233 | /* unused */ |
233 | /* unused */ |
234 | unsigned int r_pad:1; /* Padding -- set to zero */ |
234 | unsigned int r_pad:1; /* Padding -- set to zero */ |
235 | }; |
235 | }; |
236 | 236 | ||
237 | 237 | ||
238 | /* EXTENDED RELOCS */ |
238 | /* EXTENDED RELOCS */ |
239 | 239 | ||
240 | struct reloc_ext_external { |
240 | struct reloc_ext_external { |
241 | bfd_byte r_address[BYTES_IN_WORD]; /* offset of of data to relocate */ |
241 | bfd_byte r_address[BYTES_IN_WORD]; /* offset of of data to relocate */ |
242 | bfd_byte r_index[3]; /* symbol table index of symbol */ |
242 | bfd_byte r_index[3]; /* symbol table index of symbol */ |
243 | bfd_byte r_type[1]; /* relocation type */ |
243 | bfd_byte r_type[1]; /* relocation type */ |
244 | bfd_byte r_addend[BYTES_IN_WORD]; /* datum addend */ |
244 | bfd_byte r_addend[BYTES_IN_WORD]; /* datum addend */ |
245 | }; |
245 | }; |
246 | 246 | ||
247 | #define RELOC_EXT_BITS_EXTERN_BIG 0x80 |
247 | #define RELOC_EXT_BITS_EXTERN_BIG 0x80 |
248 | #define RELOC_EXT_BITS_EXTERN_LITTLE 0x01 |
248 | #define RELOC_EXT_BITS_EXTERN_LITTLE 0x01 |
249 | 249 | ||
250 | #define RELOC_EXT_BITS_TYPE_BIG 0x1F |
250 | #define RELOC_EXT_BITS_TYPE_BIG 0x1F |
251 | #define RELOC_EXT_BITS_TYPE_SH_BIG 0 |
251 | #define RELOC_EXT_BITS_TYPE_SH_BIG 0 |
252 | #define RELOC_EXT_BITS_TYPE_LITTLE 0xF8 |
252 | #define RELOC_EXT_BITS_TYPE_LITTLE 0xF8 |
253 | #define RELOC_EXT_BITS_TYPE_SH_LITTLE 3 |
253 | #define RELOC_EXT_BITS_TYPE_SH_LITTLE 3 |
254 | 254 | ||
255 | /* Bytes per relocation entry */ |
255 | /* Bytes per relocation entry */ |
256 | #define RELOC_EXT_SIZE (BYTES_IN_WORD + 3 + 1 + BYTES_IN_WORD) |
256 | #define RELOC_EXT_SIZE (BYTES_IN_WORD + 3 + 1 + BYTES_IN_WORD) |
257 | 257 | ||
258 | enum reloc_type |
258 | enum reloc_type |
259 | { |
259 | { |
260 | /* simple relocations */ |
260 | /* simple relocations */ |
261 | RELOC_8, /* data[0:7] = addend + sv */ |
261 | RELOC_8, /* data[0:7] = addend + sv */ |
262 | RELOC_16, /* data[0:15] = addend + sv */ |
262 | RELOC_16, /* data[0:15] = addend + sv */ |
263 | RELOC_32, /* data[0:31] = addend + sv */ |
263 | RELOC_32, /* data[0:31] = addend + sv */ |
264 | /* pc-rel displacement */ |
264 | /* pc-rel displacement */ |
265 | RELOC_DISP8, /* data[0:7] = addend - pc + sv */ |
265 | RELOC_DISP8, /* data[0:7] = addend - pc + sv */ |
266 | RELOC_DISP16, /* data[0:15] = addend - pc + sv */ |
266 | RELOC_DISP16, /* data[0:15] = addend - pc + sv */ |
267 | RELOC_DISP32, /* data[0:31] = addend - pc + sv */ |
267 | RELOC_DISP32, /* data[0:31] = addend - pc + sv */ |
268 | /* Special */ |
268 | /* Special */ |
269 | RELOC_WDISP30, /* data[0:29] = (addend + sv - pc)>>2 */ |
269 | RELOC_WDISP30, /* data[0:29] = (addend + sv - pc)>>2 */ |
270 | RELOC_WDISP22, /* data[0:21] = (addend + sv - pc)>>2 */ |
270 | RELOC_WDISP22, /* data[0:21] = (addend + sv - pc)>>2 */ |
271 | RELOC_HI22, /* data[0:21] = (addend + sv)>>10 */ |
271 | RELOC_HI22, /* data[0:21] = (addend + sv)>>10 */ |
272 | RELOC_22, /* data[0:21] = (addend + sv) */ |
272 | RELOC_22, /* data[0:21] = (addend + sv) */ |
273 | RELOC_13, /* data[0:12] = (addend + sv) */ |
273 | RELOC_13, /* data[0:12] = (addend + sv) */ |
274 | RELOC_LO10, /* data[0:9] = (addend + sv) */ |
274 | RELOC_LO10, /* data[0:9] = (addend + sv) */ |
275 | RELOC_SFA_BASE, |
275 | RELOC_SFA_BASE, |
276 | RELOC_SFA_OFF13, |
276 | RELOC_SFA_OFF13, |
277 | /* P.I.C. (base-relative) */ |
277 | /* P.I.C. (base-relative) */ |
278 | RELOC_BASE10, /* Not sure - maybe we can do this the */ |
278 | RELOC_BASE10, /* Not sure - maybe we can do this the */ |
279 | RELOC_BASE13, /* right way now */ |
279 | RELOC_BASE13, /* right way now */ |
280 | RELOC_BASE22, |
280 | RELOC_BASE22, |
281 | /* for some sort of pc-rel P.I.C. (?) */ |
281 | /* for some sort of pc-rel P.I.C. (?) */ |
282 | RELOC_PC10, |
282 | RELOC_PC10, |
283 | RELOC_PC22, |
283 | RELOC_PC22, |
284 | /* P.I.C. jump table */ |
284 | /* P.I.C. jump table */ |
285 | RELOC_JMP_TBL, |
285 | RELOC_JMP_TBL, |
286 | /* reputedly for shared libraries somehow */ |
286 | /* reputedly for shared libraries somehow */ |
287 | RELOC_SEGOFF16, |
287 | RELOC_SEGOFF16, |
288 | RELOC_GLOB_DAT, |
288 | RELOC_GLOB_DAT, |
289 | RELOC_JMP_SLOT, |
289 | RELOC_JMP_SLOT, |
290 | RELOC_RELATIVE, |
290 | RELOC_RELATIVE, |
291 | 291 | ||
292 | RELOC_11, |
292 | RELOC_11, |
293 | RELOC_WDISP2_14, |
293 | RELOC_WDISP2_14, |
294 | RELOC_WDISP19, |
294 | RELOC_WDISP19, |
295 | RELOC_HHI22, /* data[0:21] = (addend + sv) >> 42 */ |
295 | RELOC_HHI22, /* data[0:21] = (addend + sv) >> 42 */ |
296 | RELOC_HLO10, /* data[0:9] = (addend + sv) >> 32 */ |
296 | RELOC_HLO10, /* data[0:9] = (addend + sv) >> 32 */ |
297 | 297 | ||
298 | /* 29K relocation types */ |
298 | /* 29K relocation types */ |
299 | RELOC_JUMPTARG, |
299 | RELOC_JUMPTARG, |
300 | RELOC_CONST, |
300 | RELOC_CONST, |
301 | RELOC_CONSTH, |
301 | RELOC_CONSTH, |
302 | 302 | ||
303 | NO_RELOC |
303 | NO_RELOC |
304 | }; |
304 | }; |
305 | 305 | ||
306 | 306 | ||
307 | struct reloc_internal { |
307 | struct reloc_internal { |
308 | bfd_vma r_address; /* offset of of data to relocate */ |
308 | bfd_vma r_address; /* offset of of data to relocate */ |
309 | long r_index; /* symbol table index of symbol */ |
309 | long r_index; /* symbol table index of symbol */ |
310 | enum reloc_type r_type; /* relocation type */ |
310 | enum reloc_type r_type; /* relocation type */ |
311 | bfd_vma r_addend; /* datum addend */ |
311 | bfd_vma r_addend; /* datum addend */ |
312 | }; |
312 | }; |
313 | 313 | ||
314 | #endif /* __A_OUT_ADOBE_H__ */2><2> |
314 | #endif /* __A_OUT_ADOBE_H__ */2><2> |