Commit | Line | Data |
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3af9a47b | 1 | /* Mach-O support for BFD. |
154a1ee5 | 2 | Copyright 1999, 2000, 2001, 2002, 2003, 2005, 2007, 2008, 2009 |
3af9a47b NC |
3 | Free Software Foundation, Inc. |
4 | ||
5 | This file is part of BFD, the Binary File Descriptor library. | |
6 | ||
7 | This program is free software; you can redistribute it and/or modify | |
8 | it under the terms of the GNU General Public License as published by | |
cd123cb7 | 9 | the Free Software Foundation; either version 3 of the License, or |
3af9a47b NC |
10 | (at your option) any later version. |
11 | ||
12 | This program is distributed in the hope that it will be useful, | |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
16 | ||
17 | You should have received a copy of the GNU General Public License | |
e84d6fca | 18 | along with this program; if not, write to the Free Software |
cd123cb7 NC |
19 | Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, |
20 | MA 02110-1301, USA. */ | |
3af9a47b NC |
21 | |
22 | #ifndef _BFD_MACH_O_H_ | |
23 | #define _BFD_MACH_O_H_ | |
24 | ||
25 | #include "bfd.h" | |
26 | ||
92bc0e80 | 27 | /* Symbol n_type values. */ |
3af9a47b NC |
28 | #define BFD_MACH_O_N_STAB 0xe0 /* If any of these bits set, a symbolic debugging entry. */ |
29 | #define BFD_MACH_O_N_PEXT 0x10 /* Private external symbol bit. */ | |
30 | #define BFD_MACH_O_N_TYPE 0x0e /* Mask for the type bits. */ | |
31 | #define BFD_MACH_O_N_EXT 0x01 /* External symbol bit, set for external symbols. */ | |
32 | #define BFD_MACH_O_N_UNDF 0x00 /* Undefined, n_sect == NO_SECT. */ | |
33 | #define BFD_MACH_O_N_ABS 0x02 /* Absolute, n_sect == NO_SECT. */ | |
3af9a47b | 34 | #define BFD_MACH_O_N_INDR 0x0a /* Indirect. */ |
15e1c58a TG |
35 | #define BFD_MACH_O_N_PBUD 0x0c /* Prebound undefined (defined in a dylib). */ |
36 | #define BFD_MACH_O_N_SECT 0x0e /* Defined in section number n_sect. */ | |
37 | ||
92bc0e80 TG |
38 | #define BFD_MACH_O_NO_SECT 0 /* Symbol not in any section of the image. */ |
39 | ||
40 | /* Symbol n_desc flags. */ | |
41 | #define BFD_MACH_O_REFERENCE_FLAG_UNDEFINED_NON_LAZY 0x00 | |
42 | #define BFD_MACH_O_REFERENCE_FLAG_UNDEFINED_LAZY 0x01 | |
43 | #define BFD_MACH_O_REFERENCE_FLAG_DEFINED 0x02 | |
44 | #define BFD_MACH_O_REFERENCE_FLAG_PRIVATE_DEFINED 0x03 | |
45 | #define BFD_MACH_O_REFERENCE_FLAG_PRIVATE_UNDEFINED_NON_LAZY 0x04 | |
46 | #define BFD_MACH_O_REFERENCE_FLAG_PRIVATE_UNDEFINED_LAZY 0x05 | |
47 | #define BFD_MACH_O_REFERENCED_DYNAMICALLY 0x10 | |
48 | #define BFD_MACH_O_N_DESC_DISCARDED 0x20 | |
49 | #define BFD_MACH_O_N_NO_DEAD_STRIP 0x20 | |
50 | #define BFD_MACH_O_N_WEAK_REF 0x40 | |
51 | #define BFD_MACH_O_N_WEAK_DEF 0x80 | |
3af9a47b | 52 | |
154a1ee5 TG |
53 | typedef enum bfd_mach_o_mach_header_magic |
54 | { | |
55 | BFD_MACH_O_MH_MAGIC = 0xfeedface, | |
56 | BFD_MACH_O_MH_CIGAM = 0xcefaedfe, | |
57 | BFD_MACH_O_MH_MAGIC_64 = 0xfeedfacf, | |
58 | BFD_MACH_O_MH_CIGAM_64 = 0xcffaedfe | |
59 | } | |
60 | bfd_mach_o_mach_header_magic; | |
61 | ||
3af9a47b | 62 | typedef enum bfd_mach_o_ppc_thread_flavour |
116c20d2 NC |
63 | { |
64 | BFD_MACH_O_PPC_THREAD_STATE = 1, | |
65 | BFD_MACH_O_PPC_FLOAT_STATE = 2, | |
66 | BFD_MACH_O_PPC_EXCEPTION_STATE = 3, | |
1e8a024a TG |
67 | BFD_MACH_O_PPC_VECTOR_STATE = 4, |
68 | BFD_MACH_O_PPC_THREAD_STATE_64 = 5 | |
116c20d2 | 69 | } |
3af9a47b NC |
70 | bfd_mach_o_ppc_thread_flavour; |
71 | ||
15e1c58a | 72 | /* Defined in <mach/i386/thread_status.h> */ |
3af9a47b | 73 | typedef enum bfd_mach_o_i386_thread_flavour |
116c20d2 | 74 | { |
15e1c58a TG |
75 | BFD_MACH_O_x86_THREAD_STATE32 = 1, |
76 | BFD_MACH_O_x86_FLOAT_STATE32 = 2, | |
77 | BFD_MACH_O_x86_EXCEPTION_STATE32 = 3, | |
1e8a024a TG |
78 | BFD_MACH_O_x86_THREAD_STATE64 = 4, |
79 | BFD_MACH_O_x86_FLOAT_STATE64 = 5, | |
80 | BFD_MACH_O_x86_EXCEPTION_STATE64 = 6, | |
81 | BFD_MACH_O_x86_THREAD_STATE = 7, | |
82 | BFD_MACH_O_x86_FLOAT_STATE = 8, | |
83 | BFD_MACH_O_x86_EXCEPTION_STATE = 9, | |
15e1c58a TG |
84 | BFD_MACH_O_x86_DEBUG_STATE32 = 10, |
85 | BFD_MACH_O_x86_DEBUG_STATE64 = 11, | |
86 | BFD_MACH_O_x86_DEBUG_STATE = 12, | |
87 | BFD_MACH_O_THREAD_STATE_NONE = 13 | |
116c20d2 | 88 | } |
3af9a47b NC |
89 | bfd_mach_o_i386_thread_flavour; |
90 | ||
91 | #define BFD_MACH_O_LC_REQ_DYLD 0x80000000 | |
92 | ||
93 | typedef enum bfd_mach_o_load_command_type | |
116c20d2 NC |
94 | { |
95 | BFD_MACH_O_LC_SEGMENT = 0x1, /* File segment to be mapped. */ | |
96 | BFD_MACH_O_LC_SYMTAB = 0x2, /* Link-edit stab symbol table info (obsolete). */ | |
97 | BFD_MACH_O_LC_SYMSEG = 0x3, /* Link-edit gdb symbol table info. */ | |
98 | BFD_MACH_O_LC_THREAD = 0x4, /* Thread. */ | |
99 | BFD_MACH_O_LC_UNIXTHREAD = 0x5, /* UNIX thread (includes a stack). */ | |
100 | BFD_MACH_O_LC_LOADFVMLIB = 0x6, /* Load a fixed VM shared library. */ | |
101 | BFD_MACH_O_LC_IDFVMLIB = 0x7, /* Fixed VM shared library id. */ | |
102 | BFD_MACH_O_LC_IDENT = 0x8, /* Object identification information (obsolete). */ | |
103 | BFD_MACH_O_LC_FVMFILE = 0x9, /* Fixed VM file inclusion. */ | |
104 | BFD_MACH_O_LC_PREPAGE = 0xa, /* Prepage command (internal use). */ | |
105 | BFD_MACH_O_LC_DYSYMTAB = 0xb, /* Dynamic link-edit symbol table info. */ | |
106 | BFD_MACH_O_LC_LOAD_DYLIB = 0xc, /* Load a dynamically linked shared library. */ | |
107 | BFD_MACH_O_LC_ID_DYLIB = 0xd, /* Dynamically linked shared lib identification. */ | |
108 | BFD_MACH_O_LC_LOAD_DYLINKER = 0xe, /* Load a dynamic linker. */ | |
109 | BFD_MACH_O_LC_ID_DYLINKER = 0xf, /* Dynamic linker identification. */ | |
110 | BFD_MACH_O_LC_PREBOUND_DYLIB = 0x10, /* Modules prebound for a dynamically. */ | |
111 | BFD_MACH_O_LC_ROUTINES = 0x11, /* Image routines. */ | |
112 | BFD_MACH_O_LC_SUB_FRAMEWORK = 0x12, /* Sub framework. */ | |
113 | BFD_MACH_O_LC_SUB_UMBRELLA = 0x13, /* Sub umbrella. */ | |
114 | BFD_MACH_O_LC_SUB_CLIENT = 0x14, /* Sub client. */ | |
115 | BFD_MACH_O_LC_SUB_LIBRARY = 0x15, /* Sub library. */ | |
116 | BFD_MACH_O_LC_TWOLEVEL_HINTS = 0x16, /* Two-level namespace lookup hints. */ | |
117 | BFD_MACH_O_LC_PREBIND_CKSUM = 0x17, /* Prebind checksum. */ | |
118 | /* Load a dynamically linked shared library that is allowed to be | |
3af9a47b | 119 | missing (weak). */ |
1e8a024a TG |
120 | BFD_MACH_O_LC_LOAD_WEAK_DYLIB = 0x18, |
121 | BFD_MACH_O_LC_SEGMENT_64 = 0x19, /* 64-bit segment of this file to be | |
122 | mapped. */ | |
15e1c58a TG |
123 | BFD_MACH_O_LC_ROUTINES_64 = 0x1a, /* Address of the dyld init routine |
124 | in a dylib. */ | |
125 | BFD_MACH_O_LC_UUID = 0x1b, /* 128-bit UUID of the executable. */ | |
126 | BFD_MACH_O_LC_RPATH = 0x1c, /* Run path addiions. */ | |
846b9259 TG |
127 | BFD_MACH_O_LC_CODE_SIGNATURE = 0x1d, /* Local of code signature. */ |
128 | BFD_MACH_O_LC_SEGMENT_SPLIT_INFO = 0x1e, /* Local of info to split seg. */ | |
129 | BFD_MACH_O_LC_REEXPORT_DYLIB = 0x1f, /* Load and re-export lib. */ | |
130 | BFD_MACH_O_LC_LAZY_LOAD_DYLIB = 0x20, /* Delay load of lib until use. */ | |
131 | BFD_MACH_O_LC_ENCRYPTION_INFO = 0x21 /* Encrypted segment info. */ | |
116c20d2 | 132 | } |
3af9a47b NC |
133 | bfd_mach_o_load_command_type; |
134 | ||
1e8a024a TG |
135 | #define BFD_MACH_O_CPU_IS64BIT 0x1000000 |
136 | ||
3af9a47b | 137 | typedef enum bfd_mach_o_cpu_type |
116c20d2 NC |
138 | { |
139 | BFD_MACH_O_CPU_TYPE_VAX = 1, | |
140 | BFD_MACH_O_CPU_TYPE_MC680x0 = 6, | |
141 | BFD_MACH_O_CPU_TYPE_I386 = 7, | |
142 | BFD_MACH_O_CPU_TYPE_MIPS = 8, | |
143 | BFD_MACH_O_CPU_TYPE_MC98000 = 10, | |
144 | BFD_MACH_O_CPU_TYPE_HPPA = 11, | |
145 | BFD_MACH_O_CPU_TYPE_ARM = 12, | |
146 | BFD_MACH_O_CPU_TYPE_MC88000 = 13, | |
147 | BFD_MACH_O_CPU_TYPE_SPARC = 14, | |
148 | BFD_MACH_O_CPU_TYPE_I860 = 15, | |
149 | BFD_MACH_O_CPU_TYPE_ALPHA = 16, | |
1e8a024a TG |
150 | BFD_MACH_O_CPU_TYPE_POWERPC = 18, |
151 | BFD_MACH_O_CPU_TYPE_POWERPC_64 = (BFD_MACH_O_CPU_TYPE_POWERPC | BFD_MACH_O_CPU_IS64BIT), | |
152 | BFD_MACH_O_CPU_TYPE_X86_64 = (BFD_MACH_O_CPU_TYPE_I386 | BFD_MACH_O_CPU_IS64BIT) | |
116c20d2 | 153 | } |
3af9a47b NC |
154 | bfd_mach_o_cpu_type; |
155 | ||
154a1ee5 TG |
156 | typedef enum bfd_mach_o_cpu_subtype |
157 | { | |
158 | BFD_MACH_O_CPU_SUBTYPE_X86_ALL = 3 | |
159 | } | |
160 | bfd_mach_o_cpu_subtype; | |
161 | ||
3af9a47b | 162 | typedef enum bfd_mach_o_filetype |
116c20d2 NC |
163 | { |
164 | BFD_MACH_O_MH_OBJECT = 1, | |
165 | BFD_MACH_O_MH_EXECUTE = 2, | |
166 | BFD_MACH_O_MH_FVMLIB = 3, | |
167 | BFD_MACH_O_MH_CORE = 4, | |
168 | BFD_MACH_O_MH_PRELOAD = 5, | |
169 | BFD_MACH_O_MH_DYLIB = 6, | |
170 | BFD_MACH_O_MH_DYLINKER = 7, | |
171 | BFD_MACH_O_MH_BUNDLE = 8 | |
172 | } | |
3af9a47b NC |
173 | bfd_mach_o_filetype; |
174 | ||
175 | /* Constants for the type of a section. */ | |
176 | ||
177 | typedef enum bfd_mach_o_section_type | |
116c20d2 NC |
178 | { |
179 | /* Regular section. */ | |
180 | BFD_MACH_O_S_REGULAR = 0x0, | |
3af9a47b | 181 | |
116c20d2 NC |
182 | /* Zero fill on demand section. */ |
183 | BFD_MACH_O_S_ZEROFILL = 0x1, | |
3af9a47b | 184 | |
116c20d2 NC |
185 | /* Section with only literal C strings. */ |
186 | BFD_MACH_O_S_CSTRING_LITERALS = 0x2, | |
3af9a47b | 187 | |
116c20d2 NC |
188 | /* Section with only 4 byte literals. */ |
189 | BFD_MACH_O_S_4BYTE_LITERALS = 0x3, | |
3af9a47b | 190 | |
116c20d2 NC |
191 | /* Section with only 8 byte literals. */ |
192 | BFD_MACH_O_S_8BYTE_LITERALS = 0x4, | |
3af9a47b | 193 | |
116c20d2 NC |
194 | /* Section with only pointers to literals. */ |
195 | BFD_MACH_O_S_LITERAL_POINTERS = 0x5, | |
3af9a47b | 196 | |
116c20d2 NC |
197 | /* For the two types of symbol pointers sections and the symbol stubs |
198 | section they have indirect symbol table entries. For each of the | |
199 | entries in the section the indirect symbol table entries, in | |
200 | corresponding order in the indirect symbol table, start at the index | |
201 | stored in the reserved1 field of the section structure. Since the | |
202 | indirect symbol table entries correspond to the entries in the | |
203 | section the number of indirect symbol table entries is inferred from | |
204 | the size of the section divided by the size of the entries in the | |
205 | section. For symbol pointers sections the size of the entries in | |
206 | the section is 4 bytes and for symbol stubs sections the byte size | |
207 | of the stubs is stored in the reserved2 field of the section | |
208 | structure. */ | |
3af9a47b | 209 | |
116c20d2 NC |
210 | /* Section with only non-lazy symbol pointers. */ |
211 | BFD_MACH_O_S_NON_LAZY_SYMBOL_POINTERS = 0x6, | |
e84d6fca | 212 | |
116c20d2 NC |
213 | /* Section with only lazy symbol pointers. */ |
214 | BFD_MACH_O_S_LAZY_SYMBOL_POINTERS = 0x7, | |
e84d6fca | 215 | |
92bc0e80 TG |
216 | /* Section with only symbol stubs, byte size of stub in the reserved2 |
217 | field. */ | |
116c20d2 | 218 | BFD_MACH_O_S_SYMBOL_STUBS = 0x8, |
e84d6fca | 219 | |
116c20d2 | 220 | /* Section with only function pointers for initialization. */ |
92bc0e80 TG |
221 | BFD_MACH_O_S_MOD_INIT_FUNC_POINTERS = 0x9, |
222 | ||
223 | /* Section with only function pointers for termination. */ | |
224 | BFD_MACH_O_S_MOD_FINI_FUNC_POINTERS = 0xa, | |
225 | ||
226 | /* Section contains symbols that are coalesced by the linkers. */ | |
227 | BFD_MACH_O_S_COALESCED = 0xb, | |
228 | ||
229 | /* Zero fill on demand section (possibly larger than 4 GB). */ | |
230 | BFD_MACH_O_S_GB_ZEROFILL = 0xc, | |
231 | ||
232 | /* Section with only pairs of function pointers for interposing. */ | |
233 | BFD_MACH_O_S_INTERPOSING = 0xd, | |
234 | ||
235 | /* Section with only 16 byte literals. */ | |
236 | BFD_MACH_O_S_16BYTE_LITERALS = 0xe, | |
237 | ||
238 | /* Section contains DTrace Object Format. */ | |
239 | BFD_MACH_O_S_DTRACE_DOF = 0xf, | |
240 | ||
241 | /* Section with only lazy symbol pointers to lazy loaded dylibs. */ | |
242 | BFD_MACH_O_S_LAZY_DYLIB_SYMBOL_POINTERS = 0x10 | |
116c20d2 | 243 | } |
3af9a47b NC |
244 | bfd_mach_o_section_type; |
245 | ||
15e1c58a TG |
246 | /* The flags field of a section structure is separated into two parts a section |
247 | type and section attributes. The section types are mutually exclusive (it | |
248 | can only have one type) but the section attributes are not (it may have more | |
249 | than one attribute). */ | |
250 | ||
251 | #define BFD_MACH_O_SECTION_TYPE_MASK 0x000000ff | |
252 | ||
253 | /* Constants for the section attributes part of the flags field of a section | |
254 | structure. */ | |
255 | #define BFD_MACH_O_SECTION_ATTRIBUTES_MASK 0xffffff00 | |
256 | /* System setable attributes. */ | |
257 | #define BFD_MACH_O_SECTION_ATTRIBUTES_SYS 0x00ffff00 | |
258 | /* User attributes. */ | |
259 | #define BFD_MACH_O_SECTION_ATTRIBUTES_USR 0xff000000 | |
260 | ||
261 | /* Section has local relocation entries. */ | |
262 | #define BFD_MACH_O_S_ATTR_LOC_RELOC 0x00000100 | |
263 | ||
264 | /* Section has external relocation entries. */ | |
265 | #define BFD_MACH_O_S_ATTR_EXT_RELOC 0x00000200 | |
266 | ||
267 | /* Section contains some machine instructions. */ | |
92bc0e80 | 268 | #define BFD_MACH_O_S_ATTR_SOME_INSTRUCTIONS 0x00000400 |
15e1c58a | 269 | |
92bc0e80 | 270 | /* A debug section. */ |
15e1c58a TG |
271 | #define BFD_MACH_O_S_ATTR_DEBUG 0x02000000 |
272 | ||
92bc0e80 TG |
273 | /* Used with i386 stubs. */ |
274 | #define BFD_MACH_O_S_SELF_MODIFYING_CODE 0x04000000 | |
275 | ||
276 | /* Blocks are live if they reference live blocks. */ | |
277 | #define BFD_MACH_O_S_ATTR_LIVE_SUPPORT 0x08000000 | |
278 | ||
279 | /* No dead stripping. */ | |
280 | #define BFD_MACH_O_S_ATTR_NO_DEAD_STRIP 0x10000000 | |
281 | ||
282 | /* Section symbols can be stripped in files with MH_DYLDLINK flag. */ | |
283 | #define BFD_MACH_O_S_ATTR_STRIP_STATIC_SYMS 0x20000000 | |
284 | ||
285 | /* Section contains coalesced symbols that are not to be in the TOC of an | |
286 | archive. */ | |
287 | #define BFD_MACH_O_S_ATTR_NO_TOC 0x40000000 | |
288 | ||
15e1c58a TG |
289 | /* Section contains only true machine instructions. */ |
290 | #define BFD_MACH_O_S_ATTR_PURE_INSTRUCTIONS 0x80000000 | |
291 | ||
3af9a47b NC |
292 | typedef struct bfd_mach_o_header |
293 | { | |
294 | unsigned long magic; | |
295 | unsigned long cputype; | |
296 | unsigned long cpusubtype; | |
297 | unsigned long filetype; | |
298 | unsigned long ncmds; | |
299 | unsigned long sizeofcmds; | |
300 | unsigned long flags; | |
1e8a024a TG |
301 | unsigned int reserved; |
302 | /* Version 1: 32 bits, version 2: 64 bits. */ | |
303 | unsigned int version; | |
3af9a47b NC |
304 | enum bfd_endian byteorder; |
305 | } | |
306 | bfd_mach_o_header; | |
307 | ||
154a1ee5 TG |
308 | #define BFD_MACH_O_HEADER_SIZE 28 |
309 | #define BFD_MACH_O_HEADER_64_SIZE 32 | |
310 | ||
3af9a47b NC |
311 | typedef struct bfd_mach_o_section |
312 | { | |
313 | asection *bfdsection; | |
314 | char sectname[16 + 1]; | |
315 | char segname[16 + 1]; | |
316 | bfd_vma addr; | |
317 | bfd_vma size; | |
318 | bfd_vma offset; | |
319 | unsigned long align; | |
320 | bfd_vma reloff; | |
321 | unsigned long nreloc; | |
322 | unsigned long flags; | |
323 | unsigned long reserved1; | |
324 | unsigned long reserved2; | |
1e8a024a | 325 | unsigned long reserved3; |
3af9a47b NC |
326 | } |
327 | bfd_mach_o_section; | |
154a1ee5 TG |
328 | #define BFD_MACH_O_SECTION_SIZE 68 |
329 | #define BFD_MACH_O_SECTION_64_SIZE 80 | |
3af9a47b NC |
330 | |
331 | typedef struct bfd_mach_o_segment_command | |
332 | { | |
15e1c58a | 333 | char segname[16 + 1]; |
3af9a47b NC |
334 | bfd_vma vmaddr; |
335 | bfd_vma vmsize; | |
336 | bfd_vma fileoff; | |
337 | unsigned long filesize; | |
15e1c58a TG |
338 | unsigned long maxprot; /* Maximum permitted protection. */ |
339 | unsigned long initprot; /* Initial protection. */ | |
3af9a47b NC |
340 | unsigned long nsects; |
341 | unsigned long flags; | |
342 | bfd_mach_o_section *sections; | |
343 | asection *segment; | |
344 | } | |
345 | bfd_mach_o_segment_command; | |
154a1ee5 TG |
346 | #define BFD_MACH_O_LC_SEGMENT_SIZE 56 |
347 | #define BFD_MACH_O_LC_SEGMENT_64_SIZE 72 | |
3af9a47b | 348 | |
15e1c58a TG |
349 | /* Protection flags. */ |
350 | #define BFD_MACH_O_PROT_READ 0x01 | |
351 | #define BFD_MACH_O_PROT_WRITE 0x02 | |
352 | #define BFD_MACH_O_PROT_EXECUTE 0x04 | |
353 | ||
92bc0e80 TG |
354 | /* Generic relocation types (used by i386). */ |
355 | #define BFD_MACH_O_GENERIC_RELOC_VANILLA 0 | |
356 | #define BFD_MACH_O_GENERIC_RELOC_PAIR 1 | |
357 | #define BFD_MACH_O_GENERIC_RELOC_SECTDIFF 2 | |
358 | #define BFD_MACH_O_GENERIC_RELOC_PB_LA_PTR 3 | |
359 | #define BFD_MACH_O_GENERIC_RELOC_LOCAL_SECTDIFF 4 | |
360 | ||
361 | /* Size of a relocation entry. */ | |
362 | #define BFD_MACH_O_RELENT_SIZE 8 | |
363 | ||
364 | /* Fields for a normal (non-scattered) entry. */ | |
365 | #define BFD_MACH_O_R_PCREL 0x01000000 | |
366 | #define BFD_MACH_O_GET_R_LENGTH(s) (((s) >> 25) & 0x3) | |
367 | #define BFD_MACH_O_R_EXTERN 0x08000000 | |
368 | #define BFD_MACH_O_GET_R_TYPE(s) (((s) >> 28) & 0x0f) | |
369 | #define BFD_MACH_O_GET_R_SYMBOLNUM(s) ((s) & 0x00ffffff) | |
370 | #define BFD_MACH_O_SET_R_LENGTH(l) (((l) & 0x3) << 25) | |
371 | #define BFD_MACH_O_SET_R_TYPE(t) (((t) & 0xf) << 28) | |
372 | #define BFD_MACH_O_SET_R_SYMBOLNUM(s) ((s) & 0x00ffffff) | |
373 | ||
374 | /* Fields for a scattered entry. */ | |
375 | #define BFD_MACH_O_SR_SCATTERED 0x80000000 | |
376 | #define BFD_MACH_O_SR_PCREL 0x40000000 | |
377 | #define BFD_MACH_O_GET_SR_LENGTH(s) (((s) >> 28) & 0x3) | |
378 | #define BFD_MACH_O_GET_SR_TYPE(s) (((s) >> 24) & 0x0f) | |
379 | #define BFD_MACH_O_GET_SR_ADDRESS(s) ((s) & 0x00ffffff) | |
380 | #define BFD_MACH_O_SET_SR_LENGTH(l) (((l) & 0x3) << 28) | |
381 | #define BFD_MACH_O_SET_SR_TYPE(t) (((t) & 0xf) << 24) | |
382 | #define BFD_MACH_O_SET_SR_ADDRESS(s) ((s) & 0x00ffffff) | |
383 | ||
384 | /* Expanded internal representation of a relocation entry. */ | |
385 | typedef struct bfd_mach_o_reloc_info | |
386 | { | |
387 | bfd_vma r_address; | |
388 | bfd_vma r_value; | |
389 | unsigned int r_scattered : 1; | |
390 | unsigned int r_type : 4; | |
391 | unsigned int r_pcrel : 1; | |
392 | unsigned int r_length : 2; | |
393 | unsigned int r_extern : 1; | |
394 | } | |
395 | bfd_mach_o_reloc_info; | |
396 | ||
397 | typedef struct bfd_mach_o_asymbol | |
398 | { | |
399 | /* The actual symbol which the rest of BFD works with. */ | |
400 | asymbol symbol; | |
401 | ||
402 | /* Fields from Mach-O symbol. */ | |
403 | unsigned char n_type; | |
404 | unsigned char n_sect; | |
405 | unsigned short n_desc; | |
406 | } | |
407 | bfd_mach_o_asymbol; | |
408 | ||
3af9a47b NC |
409 | typedef struct bfd_mach_o_symtab_command |
410 | { | |
92bc0e80 TG |
411 | unsigned int symoff; |
412 | unsigned int nsyms; | |
413 | unsigned int stroff; | |
414 | unsigned int strsize; | |
415 | bfd_mach_o_asymbol *symbols; | |
3af9a47b | 416 | char *strtab; |
3af9a47b NC |
417 | } |
418 | bfd_mach_o_symtab_command; | |
419 | ||
420 | /* This is the second set of the symbolic information which is used to support | |
7dee875e | 421 | the data structures for the dynamically link editor. |
e84d6fca | 422 | |
3af9a47b NC |
423 | The original set of symbolic information in the symtab_command which contains |
424 | the symbol and string tables must also be present when this load command is | |
425 | present. When this load command is present the symbol table is organized | |
426 | into three groups of symbols: | |
427 | local symbols (static and debugging symbols) - grouped by module | |
428 | defined external symbols - grouped by module (sorted by name if not lib) | |
429 | undefined external symbols (sorted by name) | |
430 | In this load command there are offsets and counts to each of the three groups | |
431 | of symbols. | |
e84d6fca | 432 | |
3af9a47b NC |
433 | This load command contains a the offsets and sizes of the following new |
434 | symbolic information tables: | |
435 | table of contents | |
436 | module table | |
437 | reference symbol table | |
438 | indirect symbol table | |
439 | The first three tables above (the table of contents, module table and | |
7dee875e | 440 | reference symbol table) are only present if the file is a dynamically linked |
3af9a47b NC |
441 | shared library. For executable and object modules, which are files |
442 | containing only one module, the information that would be in these three | |
443 | tables is determined as follows: | |
444 | table of contents - the defined external symbols are sorted by name | |
445 | module table - the file contains only one module so everything in the | |
446 | file is part of the module. | |
447 | reference symbol table - is the defined and undefined external symbols | |
e84d6fca | 448 | |
7dee875e | 449 | For dynamically linked shared library files this load command also contains |
3af9a47b NC |
450 | offsets and sizes to the pool of relocation entries for all sections |
451 | separated into two groups: | |
452 | external relocation entries | |
453 | local relocation entries | |
454 | For executable and object modules the relocation entries continue to hang | |
455 | off the section structures. */ | |
456 | ||
457 | typedef struct bfd_mach_o_dysymtab_command | |
458 | { | |
459 | /* The symbols indicated by symoff and nsyms of the LC_SYMTAB load command | |
460 | are grouped into the following three groups: | |
461 | local symbols (further grouped by the module they are from) | |
462 | defined external symbols (further grouped by the module they are from) | |
463 | undefined symbols | |
e84d6fca | 464 | |
3af9a47b NC |
465 | The local symbols are used only for debugging. The dynamic binding |
466 | process may have to use them to indicate to the debugger the local | |
467 | symbols for a module that is being bound. | |
e84d6fca | 468 | |
3af9a47b NC |
469 | The last two groups are used by the dynamic binding process to do the |
470 | binding (indirectly through the module table and the reference symbol | |
7dee875e | 471 | table when this is a dynamically linked shared library file). */ |
3af9a47b NC |
472 | |
473 | unsigned long ilocalsym; /* Index to local symbols. */ | |
474 | unsigned long nlocalsym; /* Number of local symbols. */ | |
475 | unsigned long iextdefsym; /* Index to externally defined symbols. */ | |
476 | unsigned long nextdefsym; /* Number of externally defined symbols. */ | |
477 | unsigned long iundefsym; /* Index to undefined symbols. */ | |
478 | unsigned long nundefsym; /* Number of undefined symbols. */ | |
479 | ||
480 | /* For the for the dynamic binding process to find which module a symbol | |
481 | is defined in the table of contents is used (analogous to the ranlib | |
482 | structure in an archive) which maps defined external symbols to modules | |
7dee875e | 483 | they are defined in. This exists only in a dynamically linked shared |
3af9a47b NC |
484 | library file. For executable and object modules the defined external |
485 | symbols are sorted by name and is use as the table of contents. */ | |
486 | ||
487 | unsigned long tocoff; /* File offset to table of contents. */ | |
488 | unsigned long ntoc; /* Number of entries in table of contents. */ | |
489 | ||
490 | /* To support dynamic binding of "modules" (whole object files) the symbol | |
491 | table must reflect the modules that the file was created from. This is | |
492 | done by having a module table that has indexes and counts into the merged | |
493 | tables for each module. The module structure that these two entries | |
7dee875e | 494 | refer to is described below. This exists only in a dynamically linked |
3af9a47b NC |
495 | shared library file. For executable and object modules the file only |
496 | contains one module so everything in the file belongs to the module. */ | |
497 | ||
498 | unsigned long modtaboff; /* File offset to module table. */ | |
499 | unsigned long nmodtab; /* Number of module table entries. */ | |
500 | ||
501 | /* To support dynamic module binding the module structure for each module | |
502 | indicates the external references (defined and undefined) each module | |
503 | makes. For each module there is an offset and a count into the | |
504 | reference symbol table for the symbols that the module references. | |
7dee875e | 505 | This exists only in a dynamically linked shared library file. For |
3af9a47b NC |
506 | executable and object modules the defined external symbols and the |
507 | undefined external symbols indicates the external references. */ | |
508 | ||
509 | unsigned long extrefsymoff; /* Offset to referenced symbol table. */ | |
510 | unsigned long nextrefsyms; /* Number of referenced symbol table entries. */ | |
511 | ||
512 | /* The sections that contain "symbol pointers" and "routine stubs" have | |
513 | indexes and (implied counts based on the size of the section and fixed | |
514 | size of the entry) into the "indirect symbol" table for each pointer | |
515 | and stub. For every section of these two types the index into the | |
516 | indirect symbol table is stored in the section header in the field | |
517 | reserved1. An indirect symbol table entry is simply a 32bit index into | |
518 | the symbol table to the symbol that the pointer or stub is referring to. | |
519 | The indirect symbol table is ordered to match the entries in the section. */ | |
520 | ||
521 | unsigned long indirectsymoff; /* File offset to the indirect symbol table. */ | |
522 | unsigned long nindirectsyms; /* Number of indirect symbol table entries. */ | |
523 | ||
524 | /* To support relocating an individual module in a library file quickly the | |
525 | external relocation entries for each module in the library need to be | |
526 | accessed efficiently. Since the relocation entries can't be accessed | |
527 | through the section headers for a library file they are separated into | |
528 | groups of local and external entries further grouped by module. In this | |
529 | case the presents of this load command who's extreloff, nextrel, | |
530 | locreloff and nlocrel fields are non-zero indicates that the relocation | |
531 | entries of non-merged sections are not referenced through the section | |
532 | structures (and the reloff and nreloc fields in the section headers are | |
533 | set to zero). | |
534 | ||
535 | Since the relocation entries are not accessed through the section headers | |
536 | this requires the r_address field to be something other than a section | |
537 | offset to identify the item to be relocated. In this case r_address is | |
538 | set to the offset from the vmaddr of the first LC_SEGMENT command. | |
539 | ||
540 | The relocation entries are grouped by module and the module table | |
541 | entries have indexes and counts into them for the group of external | |
542 | relocation entries for that the module. | |
543 | ||
544 | For sections that are merged across modules there must not be any | |
545 | remaining external relocation entries for them (for merged sections | |
546 | remaining relocation entries must be local). */ | |
547 | ||
548 | unsigned long extreloff; /* Offset to external relocation entries. */ | |
549 | unsigned long nextrel; /* Number of external relocation entries. */ | |
550 | ||
551 | /* All the local relocation entries are grouped together (they are not | |
552 | grouped by their module since they are only used if the object is moved | |
7dee875e | 553 | from it statically link edited address). */ |
3af9a47b NC |
554 | |
555 | unsigned long locreloff; /* Offset to local relocation entries. */ | |
556 | unsigned long nlocrel; /* Number of local relocation entries. */ | |
557 | } | |
e84d6fca | 558 | bfd_mach_o_dysymtab_command; |
3af9a47b | 559 | |
e84d6fca | 560 | /* An indirect symbol table entry is simply a 32bit index into the symbol table |
3af9a47b | 561 | to the symbol that the pointer or stub is refering to. Unless it is for a |
e84d6fca | 562 | non-lazy symbol pointer section for a defined symbol which strip(1) as |
3af9a47b NC |
563 | removed. In which case it has the value INDIRECT_SYMBOL_LOCAL. If the |
564 | symbol was also absolute INDIRECT_SYMBOL_ABS is or'ed with that. */ | |
565 | ||
15e1c58a TG |
566 | #define BFD_MACH_O_INDIRECT_SYMBOL_LOCAL 0x80000000 |
567 | #define BFD_MACH_O_INDIRECT_SYMBOL_ABS 0x40000000 | |
3af9a47b NC |
568 | |
569 | typedef struct bfd_mach_o_thread_flavour | |
570 | { | |
571 | unsigned long flavour; | |
572 | bfd_vma offset; | |
573 | unsigned long size; | |
574 | } | |
575 | bfd_mach_o_thread_flavour; | |
576 | ||
577 | typedef struct bfd_mach_o_thread_command | |
578 | { | |
579 | unsigned long nflavours; | |
e84d6fca | 580 | bfd_mach_o_thread_flavour *flavours; |
3af9a47b NC |
581 | asection *section; |
582 | } | |
583 | bfd_mach_o_thread_command; | |
584 | ||
585 | typedef struct bfd_mach_o_dylinker_command | |
586 | { | |
846b9259 TG |
587 | unsigned long cmd; /* LC_ID_DYLINKER or LC_LOAD_DYLINKER. */ |
588 | unsigned long cmdsize; /* Includes pathname string. */ | |
589 | unsigned long name_offset; /* Offset to library's path name. */ | |
590 | unsigned long name_len; /* Offset to library's path name. */ | |
3af9a47b NC |
591 | asection *section; |
592 | } | |
593 | bfd_mach_o_dylinker_command; | |
594 | ||
595 | typedef struct bfd_mach_o_dylib_command | |
596 | { | |
597 | unsigned long cmd; /* LC_ID_DYLIB or LC_LOAD_DYLIB. */ | |
598 | unsigned long cmdsize; /* Includes pathname string. */ | |
599 | unsigned long name_offset; /* Offset to library's path name. */ | |
600 | unsigned long name_len; /* Offset to library's path name. */ | |
601 | unsigned long timestamp; /* Library's build time stamp. */ | |
602 | unsigned long current_version; /* Library's current version number. */ | |
603 | unsigned long compatibility_version; /* Library's compatibility vers number. */ | |
604 | asection *section; | |
605 | } | |
606 | bfd_mach_o_dylib_command; | |
607 | ||
608 | typedef struct bfd_mach_o_prebound_dylib_command | |
609 | { | |
610 | unsigned long cmd; /* LC_PREBOUND_DYLIB. */ | |
611 | unsigned long cmdsize; /* Includes strings. */ | |
612 | unsigned long name; /* Library's path name. */ | |
613 | unsigned long nmodules; /* Number of modules in library. */ | |
614 | unsigned long linked_modules; /* Bit vector of linked modules. */ | |
615 | asection *section; | |
616 | } | |
617 | bfd_mach_o_prebound_dylib_command; | |
618 | ||
15e1c58a TG |
619 | typedef struct bfd_mach_o_uuid_command |
620 | { | |
621 | unsigned long cmd; /* LC_PREBOUND_DYLIB. */ | |
622 | unsigned long cmdsize; /* Includes uuid. */ | |
623 | unsigned char uuid[16]; /* Uuid. */ | |
624 | asection *section; | |
625 | } | |
626 | bfd_mach_o_uuid_command; | |
627 | ||
3af9a47b NC |
628 | typedef struct bfd_mach_o_load_command |
629 | { | |
630 | bfd_mach_o_load_command_type type; | |
154a1ee5 | 631 | bfd_boolean type_required; |
92bc0e80 TG |
632 | unsigned int offset; |
633 | unsigned int len; | |
3af9a47b NC |
634 | union |
635 | { | |
636 | bfd_mach_o_segment_command segment; | |
637 | bfd_mach_o_symtab_command symtab; | |
638 | bfd_mach_o_dysymtab_command dysymtab; | |
639 | bfd_mach_o_thread_command thread; | |
640 | bfd_mach_o_dylib_command dylib; | |
641 | bfd_mach_o_dylinker_command dylinker; | |
642 | bfd_mach_o_prebound_dylib_command prebound_dylib; | |
15e1c58a | 643 | bfd_mach_o_uuid_command uuid; |
3af9a47b NC |
644 | } |
645 | command; | |
646 | } | |
647 | bfd_mach_o_load_command; | |
648 | ||
649 | typedef struct mach_o_data_struct | |
650 | { | |
92bc0e80 | 651 | /* Mach-O header. */ |
3af9a47b | 652 | bfd_mach_o_header header; |
92bc0e80 | 653 | /* Array of load commands (length is given by header.ncmds). */ |
3af9a47b | 654 | bfd_mach_o_load_command *commands; |
92bc0e80 TG |
655 | |
656 | /* Flatten array of sections. The array is 0-based. */ | |
3af9a47b NC |
657 | unsigned long nsects; |
658 | bfd_mach_o_section **sections; | |
92bc0e80 TG |
659 | |
660 | /* Used while writting: current length of the output file. This is used | |
661 | to allocate space in the file. */ | |
662 | ufile_ptr filelen; | |
3af9a47b NC |
663 | } |
664 | mach_o_data_struct; | |
92bc0e80 | 665 | typedef struct mach_o_data_struct bfd_mach_o_data_struct; |
3af9a47b | 666 | |
92bc0e80 TG |
667 | /* Target specific routines. */ |
668 | typedef struct bfd_mach_o_backend_data | |
669 | { | |
670 | bfd_boolean (*_bfd_mach_o_swap_reloc_in)(arelent *, bfd_mach_o_reloc_info *); | |
671 | bfd_boolean (*_bfd_mach_o_swap_reloc_out)(arelent *, bfd_mach_o_reloc_info *); | |
672 | } | |
673 | bfd_mach_o_backend_data; | |
15e1c58a | 674 | |
92bc0e80 TG |
675 | #define bfd_get_mach_o_data(abfd) ((abfd)->tdata.mach_o_data) |
676 | #define bfd_mach_o_get_backend_data(abfd) \ | |
677 | ((bfd_mach_o_backend_data*)(abfd)->xvec->backend_data) | |
3af9a47b | 678 | |
154a1ee5 | 679 | bfd_boolean bfd_mach_o_valid (bfd *); |
92bc0e80 TG |
680 | int bfd_mach_o_scan_read_symtab_symbol (bfd *, bfd_mach_o_symtab_command *, |
681 | bfd_mach_o_asymbol *, unsigned long); | |
154a1ee5 TG |
682 | int bfd_mach_o_scan_read_symtab_strtab (bfd *, bfd_mach_o_symtab_command *); |
683 | int bfd_mach_o_scan_read_symtab_symbols (bfd *, bfd_mach_o_symtab_command *); | |
92bc0e80 | 684 | int bfd_mach_o_scan_read_dysymtab_symbol (bfd *, bfd_mach_o_dysymtab_command *, bfd_mach_o_symtab_command *, bfd_mach_o_asymbol *, unsigned long); |
154a1ee5 TG |
685 | int bfd_mach_o_scan_start_address (bfd *); |
686 | int bfd_mach_o_scan (bfd *, bfd_mach_o_header *, bfd_mach_o_data_struct *); | |
687 | bfd_boolean bfd_mach_o_mkobject_init (bfd *); | |
688 | const bfd_target *bfd_mach_o_object_p (bfd *); | |
689 | const bfd_target *bfd_mach_o_core_p (bfd *); | |
690 | const bfd_target *bfd_mach_o_archive_p (bfd *); | |
691 | bfd *bfd_mach_o_openr_next_archived_file (bfd *, bfd *); | |
692 | int bfd_mach_o_lookup_section (bfd *, asection *, bfd_mach_o_load_command **, bfd_mach_o_section **); | |
693 | int bfd_mach_o_lookup_command (bfd *, bfd_mach_o_load_command_type, bfd_mach_o_load_command **); | |
694 | bfd_boolean bfd_mach_o_write_contents (bfd *); | |
695 | bfd_boolean bfd_mach_o_bfd_copy_private_symbol_data (bfd *, asymbol *, | |
696 | bfd *, asymbol *); | |
697 | bfd_boolean bfd_mach_o_bfd_copy_private_section_data (bfd *, asection *, | |
698 | bfd *, asection *); | |
699 | bfd_boolean bfd_mach_o_bfd_copy_private_bfd_data (bfd *, bfd *); | |
700 | long bfd_mach_o_get_symtab_upper_bound (bfd *); | |
701 | long bfd_mach_o_canonicalize_symtab (bfd *, asymbol **); | |
92bc0e80 TG |
702 | long bfd_mach_o_get_reloc_upper_bound (bfd *abfd ATTRIBUTE_UNUSED, |
703 | asection *asect); | |
704 | long bfd_mach_o_canonicalize_reloc (bfd *abfd, asection *asect, | |
705 | arelent **rels, asymbol **syms); | |
154a1ee5 TG |
706 | asymbol *bfd_mach_o_make_empty_symbol (bfd *); |
707 | void bfd_mach_o_get_symbol_info (bfd *, asymbol *, symbol_info *); | |
708 | void bfd_mach_o_print_symbol (bfd *, PTR, asymbol *, bfd_print_symbol_type); | |
709 | bfd_boolean bfd_mach_o_bfd_print_private_bfd_data (bfd *, PTR); | |
710 | int bfd_mach_o_sizeof_headers (bfd *, struct bfd_link_info *); | |
711 | unsigned long bfd_mach_o_stack_addr (enum bfd_mach_o_cpu_type); | |
712 | int bfd_mach_o_core_fetch_environment (bfd *, unsigned char **, unsigned int *); | |
713 | char *bfd_mach_o_core_file_failing_command (bfd *); | |
714 | int bfd_mach_o_core_file_failing_signal (bfd *); | |
715 | bfd_boolean bfd_mach_o_core_file_matches_executable_p (bfd *, bfd *); | |
846b9259 | 716 | bfd *bfd_mach_o_fat_extract (bfd *, bfd_format , const bfd_arch_info_type *); |
154a1ee5 TG |
717 | const bfd_target *bfd_mach_o_header_p (bfd *, bfd_mach_o_filetype, |
718 | bfd_mach_o_cpu_type); | |
719 | bfd_boolean bfd_mach_o_build_commands (bfd *abfd); | |
720 | bfd_boolean bfd_mach_o_set_section_contents (bfd *, asection *, const void *, | |
721 | file_ptr, bfd_size_type); | |
c2f09c75 | 722 | unsigned int bfd_mach_o_version (bfd *); |
3af9a47b | 723 | |
3af9a47b NC |
724 | extern const bfd_target mach_o_fat_vec; |
725 | ||
726 | #endif /* _BFD_MACH_O_H_ */ |