source: trunk/libs/newlib/src/include/mach-o/loader.h @ 444

Last change on this file since 444 was 444, checked in by satin@…, 6 years ago

add newlib,libalmos-mkh, restructure shared_syscalls.h and mini-libc
File size: 14.4 KB
Line 
1/* Mach-O support for BFD.
2   Copyright 2011, 2012
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
9   the Free Software Foundation; either version 3 of the License, or
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
18   along with this program; if not, write to the Free Software
19   Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
20   MA 02110-1301, USA.  */
21
22#ifndef _MACH_O_LOADER_H
23#define _MACH_O_LOADER_H
24
25/* Constants for header. */
26
27typedef enum bfd_mach_o_mach_header_magic
28{
29  BFD_MACH_O_MH_MAGIC    = 0xfeedface,
30  BFD_MACH_O_MH_CIGAM    = 0xcefaedfe,
31  BFD_MACH_O_MH_MAGIC_64 = 0xfeedfacf,
32  BFD_MACH_O_MH_CIGAM_64 = 0xcffaedfe
33}
34bfd_mach_o_mach_header_magic;
35
36#define BFD_MACH_O_CPU_IS64BIT 0x1000000
37
38typedef enum bfd_mach_o_cpu_type
39{
40  BFD_MACH_O_CPU_TYPE_VAX = 1,
41  BFD_MACH_O_CPU_TYPE_MC680x0 = 6,
42  BFD_MACH_O_CPU_TYPE_I386 = 7,
43  BFD_MACH_O_CPU_TYPE_MIPS = 8,
44  BFD_MACH_O_CPU_TYPE_MC98000 = 10,
45  BFD_MACH_O_CPU_TYPE_HPPA = 11,
46  BFD_MACH_O_CPU_TYPE_ARM = 12,
47  BFD_MACH_O_CPU_TYPE_MC88000 = 13,
48  BFD_MACH_O_CPU_TYPE_SPARC = 14,
49  BFD_MACH_O_CPU_TYPE_I860 = 15,
50  BFD_MACH_O_CPU_TYPE_ALPHA = 16,
51  BFD_MACH_O_CPU_TYPE_POWERPC = 18,
52  BFD_MACH_O_CPU_TYPE_POWERPC_64 = (BFD_MACH_O_CPU_TYPE_POWERPC | BFD_MACH_O_CPU_IS64BIT),
53  BFD_MACH_O_CPU_TYPE_X86_64 = (BFD_MACH_O_CPU_TYPE_I386 | BFD_MACH_O_CPU_IS64BIT)
54}
55bfd_mach_o_cpu_type;
56
57typedef enum bfd_mach_o_cpu_subtype
58{
59  /* i386.  */
60  BFD_MACH_O_CPU_SUBTYPE_X86_ALL = 3,
61
62  /* arm.  */
63  BFD_MACH_O_CPU_SUBTYPE_ARM_ALL = 0,
64  BFD_MACH_O_CPU_SUBTYPE_ARM_V4T = 5,
65  BFD_MACH_O_CPU_SUBTYPE_ARM_V6 = 6,
66  BFD_MACH_O_CPU_SUBTYPE_ARM_V5TEJ = 7,
67  BFD_MACH_O_CPU_SUBTYPE_ARM_XSCALE = 8,
68  BFD_MACH_O_CPU_SUBTYPE_ARM_V7 = 9
69}
70bfd_mach_o_cpu_subtype;
71
72typedef enum bfd_mach_o_filetype
73{
74  BFD_MACH_O_MH_OBJECT      = 0x01,
75  BFD_MACH_O_MH_EXECUTE     = 0x02,
76  BFD_MACH_O_MH_FVMLIB      = 0x03,
77  BFD_MACH_O_MH_CORE        = 0x04,
78  BFD_MACH_O_MH_PRELOAD     = 0x05,
79  BFD_MACH_O_MH_DYLIB       = 0x06,
80  BFD_MACH_O_MH_DYLINKER    = 0x07,
81  BFD_MACH_O_MH_BUNDLE      = 0x08,
82  BFD_MACH_O_MH_DYLIB_STUB  = 0x09,
83  BFD_MACH_O_MH_DSYM        = 0x0a,
84  BFD_MACH_O_MH_KEXT_BUNDLE = 0x0b
85}
86bfd_mach_o_filetype;
87
88typedef enum bfd_mach_o_header_flags
89{
90  BFD_MACH_O_MH_NOUNDEFS                = 0x0000001,
91  BFD_MACH_O_MH_INCRLINK                = 0x0000002,
92  BFD_MACH_O_MH_DYLDLINK                = 0x0000004,
93  BFD_MACH_O_MH_BINDATLOAD              = 0x0000008,
94  BFD_MACH_O_MH_PREBOUND                = 0x0000010,
95  BFD_MACH_O_MH_SPLIT_SEGS              = 0x0000020,
96  BFD_MACH_O_MH_LAZY_INIT               = 0x0000040,
97  BFD_MACH_O_MH_TWOLEVEL                = 0x0000080,
98  BFD_MACH_O_MH_FORCE_FLAT              = 0x0000100,
99  BFD_MACH_O_MH_NOMULTIDEFS             = 0x0000200,
100  BFD_MACH_O_MH_NOFIXPREBINDING         = 0x0000400,
101  BFD_MACH_O_MH_PREBINDABLE             = 0x0000800,
102  BFD_MACH_O_MH_ALLMODSBOUND            = 0x0001000,
103  BFD_MACH_O_MH_SUBSECTIONS_VIA_SYMBOLS = 0x0002000,
104  BFD_MACH_O_MH_CANONICAL               = 0x0004000,
105  BFD_MACH_O_MH_WEAK_DEFINES            = 0x0008000,
106  BFD_MACH_O_MH_BINDS_TO_WEAK           = 0x0010000,
107  BFD_MACH_O_MH_ALLOW_STACK_EXECUTION   = 0x0020000,
108  BFD_MACH_O_MH_ROOT_SAFE               = 0x0040000,
109  BFD_MACH_O_MH_SETUID_SAFE             = 0x0080000,
110  BFD_MACH_O_MH_NO_REEXPORTED_DYLIBS    = 0x0100000,
111  BFD_MACH_O_MH_PIE                     = 0x0200000,
112  BFD_MACH_O_MH_DEAD_STRIPPABLE_DYLIB   = 0x0400000,
113  BFD_MACH_O_MH_HAS_TLV_DESCRIPTORS     = 0x0800000,
114  BFD_MACH_O_MH_NO_HEAP_EXECUTION       = 0x1000000
115}
116bfd_mach_o_header_flags;
117
118/* Load command constants.  */
119#define BFD_MACH_O_LC_REQ_DYLD 0x80000000
120
121typedef enum bfd_mach_o_load_command_type
122{
123  BFD_MACH_O_LC_SEGMENT = 0x1,          /* File segment to be mapped.  */
124  BFD_MACH_O_LC_SYMTAB = 0x2,           /* Link-edit stab symbol table info (obsolete).  */
125  BFD_MACH_O_LC_SYMSEG = 0x3,           /* Link-edit gdb symbol table info.  */
126  BFD_MACH_O_LC_THREAD = 0x4,           /* Thread.  */
127  BFD_MACH_O_LC_UNIXTHREAD = 0x5,       /* UNIX thread (includes a stack).  */
128  BFD_MACH_O_LC_LOADFVMLIB = 0x6,       /* Load a fixed VM shared library.  */
129  BFD_MACH_O_LC_IDFVMLIB = 0x7,         /* Fixed VM shared library id.  */
130  BFD_MACH_O_LC_IDENT = 0x8,            /* Object identification information (obsolete).  */
131  BFD_MACH_O_LC_FVMFILE = 0x9,          /* Fixed VM file inclusion.  */
132  BFD_MACH_O_LC_PREPAGE = 0xa,          /* Prepage command (internal use).  */
133  BFD_MACH_O_LC_DYSYMTAB = 0xb,         /* Dynamic link-edit symbol table info.  */
134  BFD_MACH_O_LC_LOAD_DYLIB = 0xc,       /* Load a dynamically linked shared library.  */
135  BFD_MACH_O_LC_ID_DYLIB = 0xd,         /* Dynamically linked shared lib identification.  */
136  BFD_MACH_O_LC_LOAD_DYLINKER = 0xe,    /* Load a dynamic linker.  */
137  BFD_MACH_O_LC_ID_DYLINKER = 0xf,      /* Dynamic linker identification.  */
138  BFD_MACH_O_LC_PREBOUND_DYLIB = 0x10,  /* Modules prebound for a dynamically.  */
139  BFD_MACH_O_LC_ROUTINES = 0x11,        /* Image routines.  */
140  BFD_MACH_O_LC_SUB_FRAMEWORK = 0x12,   /* Sub framework.  */
141  BFD_MACH_O_LC_SUB_UMBRELLA = 0x13,    /* Sub umbrella.  */
142  BFD_MACH_O_LC_SUB_CLIENT = 0x14,      /* Sub client.  */
143  BFD_MACH_O_LC_SUB_LIBRARY = 0x15,     /* Sub library.  */
144  BFD_MACH_O_LC_TWOLEVEL_HINTS = 0x16,  /* Two-level namespace lookup hints.  */
145  BFD_MACH_O_LC_PREBIND_CKSUM = 0x17,   /* Prebind checksum.  */
146  /* Load a dynamically linked shared library that is allowed to be
147       missing (weak).  */
148  BFD_MACH_O_LC_LOAD_WEAK_DYLIB = 0x18,
149  BFD_MACH_O_LC_SEGMENT_64 = 0x19,      /* 64-bit segment of this file to be
150                                           mapped.  */
151  BFD_MACH_O_LC_ROUTINES_64 = 0x1a,     /* Address of the dyld init routine
152                                           in a dylib.  */
153  BFD_MACH_O_LC_UUID = 0x1b,            /* 128-bit UUID of the executable.  */
154  BFD_MACH_O_LC_RPATH = 0x1c,           /* Run path addiions.  */
155  BFD_MACH_O_LC_CODE_SIGNATURE = 0x1d,  /* Local of code signature.  */
156  BFD_MACH_O_LC_SEGMENT_SPLIT_INFO = 0x1e, /* Local of info to split seg.  */
157  BFD_MACH_O_LC_REEXPORT_DYLIB = 0x1f,  /* Load and re-export lib.  */
158  BFD_MACH_O_LC_LAZY_LOAD_DYLIB = 0x20, /* Delay load of lib until use.  */
159  BFD_MACH_O_LC_ENCRYPTION_INFO = 0x21, /* Encrypted segment info.  */
160  BFD_MACH_O_LC_DYLD_INFO = 0x22,       /* Compressed dyld information.  */
161  BFD_MACH_O_LC_LOAD_UPWARD_DYLIB = 0x23, /* Load upward dylib.  */
162  BFD_MACH_O_LC_VERSION_MIN_MACOSX = 0x24,   /* Minimal MacOSX version.  */
163  BFD_MACH_O_LC_VERSION_MIN_IPHONEOS = 0x25, /* Minimal IOS version.  */
164  BFD_MACH_O_LC_FUNCTION_STARTS = 0x26,  /* Compressed table of func start.  */
165  BFD_MACH_O_LC_DYLD_ENVIRONMENT = 0x27, /* Env variable string for dyld.  */
166  BFD_MACH_O_LC_MAIN = 0x28,             /* Entry point.  */
167  BFD_MACH_O_LC_DATA_IN_CODE = 0x29,     /* Table of non-instructions.  */
168  BFD_MACH_O_LC_SOURCE_VERSION = 0x2a,   /* Source version.  */
169  BFD_MACH_O_LC_DYLIB_CODE_SIGN_DRS = 0x2b /* DRs from dylibs.  */
170}
171bfd_mach_o_load_command_type;
172
173/* Section constants.  */
174/* Constants for the type of a section.  */
175
176typedef enum bfd_mach_o_section_type
177{
178  /* Regular section.  */
179  BFD_MACH_O_S_REGULAR = 0x0,
180
181  /* Zero fill on demand section.  */
182  BFD_MACH_O_S_ZEROFILL = 0x1,
183
184  /* Section with only literal C strings.  */
185  BFD_MACH_O_S_CSTRING_LITERALS = 0x2,
186
187  /* Section with only 4 byte literals.  */
188  BFD_MACH_O_S_4BYTE_LITERALS = 0x3,
189
190  /* Section with only 8 byte literals.  */
191  BFD_MACH_O_S_8BYTE_LITERALS = 0x4,
192
193  /* Section with only pointers to literals.  */
194  BFD_MACH_O_S_LITERAL_POINTERS = 0x5,
195
196  /* For the two types of symbol pointers sections and the symbol stubs
197     section they have indirect symbol table entries.  For each of the
198     entries in the section the indirect symbol table entries, in
199     corresponding order in the indirect symbol table, start at the index
200     stored in the reserved1 field of the section structure.  Since the
201     indirect symbol table entries correspond to the entries in the
202     section the number of indirect symbol table entries is inferred from
203     the size of the section divided by the size of the entries in the
204     section.  For symbol pointers sections the size of the entries in
205     the section is 4 bytes and for symbol stubs sections the byte size
206     of the stubs is stored in the reserved2 field of the section
207     structure.  */
208
209  /* Section with only non-lazy symbol pointers.  */
210  BFD_MACH_O_S_NON_LAZY_SYMBOL_POINTERS = 0x6,
211
212  /* Section with only lazy symbol pointers.  */
213  BFD_MACH_O_S_LAZY_SYMBOL_POINTERS = 0x7,
214
215  /* Section with only symbol stubs, byte size of stub in the reserved2
216     field.  */
217  BFD_MACH_O_S_SYMBOL_STUBS = 0x8,
218
219  /* Section with only function pointers for initialization.  */
220  BFD_MACH_O_S_MOD_INIT_FUNC_POINTERS = 0x9,
221
222  /* Section with only function pointers for termination.  */
223  BFD_MACH_O_S_MOD_FINI_FUNC_POINTERS = 0xa,
224
225  /* Section contains symbols that are coalesced by the linkers.  */
226  BFD_MACH_O_S_COALESCED = 0xb,
227
228  /* Zero fill on demand section (possibly larger than 4 GB).  */
229  BFD_MACH_O_S_GB_ZEROFILL = 0xc,
230
231  /* Section with only pairs of function pointers for interposing.  */
232  BFD_MACH_O_S_INTERPOSING = 0xd,
233
234  /* Section with only 16 byte literals.  */
235  BFD_MACH_O_S_16BYTE_LITERALS = 0xe,
236
237  /* Section contains DTrace Object Format.  */
238  BFD_MACH_O_S_DTRACE_DOF = 0xf,
239
240  /* Section with only lazy symbol pointers to lazy loaded dylibs.  */
241  BFD_MACH_O_S_LAZY_DYLIB_SYMBOL_POINTERS = 0x10
242}
243bfd_mach_o_section_type;
244
245/* The flags field of a section structure is separated into two parts a section
246   type and section attributes.  The section types are mutually exclusive (it
247   can only have one type) but the section attributes are not (it may have more
248   than one attribute).  */
249
250#define BFD_MACH_O_SECTION_TYPE_MASK        0x000000ff
251
252/* Constants for the section attributes part of the flags field of a section
253   structure.  */
254#define BFD_MACH_O_SECTION_ATTRIBUTES_MASK  0xffffff00
255/* System setable attributes.  */
256#define BFD_MACH_O_SECTION_ATTRIBUTES_SYS   0x00ffff00
257/* User attributes.  */
258#define BFD_MACH_O_SECTION_ATTRIBUTES_USR   0xff000000
259
260typedef enum bfd_mach_o_section_attribute
261{
262  /* Section has no specified attibutes.  */
263  BFD_MACH_O_S_ATTR_NONE              = 0,
264
265  /* Section has local relocation entries.  */
266  BFD_MACH_O_S_ATTR_LOC_RELOC         = 0x00000100,
267
268  /* Section has external relocation entries.  */
269  BFD_MACH_O_S_ATTR_EXT_RELOC         = 0x00000200,
270
271  /* Section contains some machine instructions.  */
272  BFD_MACH_O_S_ATTR_SOME_INSTRUCTIONS = 0x00000400,
273
274  /* A debug section.  */
275  BFD_MACH_O_S_ATTR_DEBUG             = 0x02000000,
276
277  /* Used with i386 stubs.  */
278  BFD_MACH_O_S_SELF_MODIFYING_CODE    = 0x04000000,
279
280  /* Blocks are live if they reference live blocks.  */
281  BFD_MACH_O_S_ATTR_LIVE_SUPPORT      = 0x08000000,
282
283  /* No dead stripping.  */
284  BFD_MACH_O_S_ATTR_NO_DEAD_STRIP     = 0x10000000,
285
286  /* Section symbols can be stripped in files with MH_DYLDLINK flag.  */
287  BFD_MACH_O_S_ATTR_STRIP_STATIC_SYMS = 0x20000000,
288
289  /* Section contains coalesced symbols that are not to be in the TOC of an
290     archive.  */
291  BFD_MACH_O_S_ATTR_NO_TOC            = 0x40000000,
292
293  /* Section contains only true machine instructions.  */
294  BFD_MACH_O_S_ATTR_PURE_INSTRUCTIONS = 0x80000000
295}
296bfd_mach_o_section_attribute;
297
298/* Symbol constants.  */
299
300/* Symbol n_type values.  */
301#define BFD_MACH_O_N_STAB  0xe0 /* If any of these bits set, a symbolic debugging entry.  */
302#define BFD_MACH_O_N_PEXT  0x10 /* Private external symbol bit.  */
303#define BFD_MACH_O_N_TYPE  0x0e /* Mask for the type bits.  */
304#define BFD_MACH_O_N_EXT   0x01 /* External symbol bit, set for external symbols.  */
305#define BFD_MACH_O_N_UNDF  0x00 /* Undefined, n_sect == NO_SECT.  */
306#define BFD_MACH_O_N_ABS   0x02 /* Absolute, n_sect == NO_SECT.  */
307#define BFD_MACH_O_N_INDR  0x0a /* Indirect.  */
308#define BFD_MACH_O_N_PBUD  0x0c /* Prebound undefined (defined in a dylib).  */
309#define BFD_MACH_O_N_SECT  0x0e /* Defined in section number n_sect.  */
310
311#define BFD_MACH_O_NO_SECT 0    /* Symbol not in any section of the image.  */
312
313/* Symbol n_desc reference flags.  */
314#define BFD_MACH_O_REFERENCE_MASK                               0x07
315#define BFD_MACH_O_REFERENCE_FLAG_UNDEFINED_NON_LAZY            0x00
316#define BFD_MACH_O_REFERENCE_FLAG_UNDEFINED_LAZY                0x01
317#define BFD_MACH_O_REFERENCE_FLAG_DEFINED                       0x02
318#define BFD_MACH_O_REFERENCE_FLAG_PRIVATE_DEFINED               0x03
319#define BFD_MACH_O_REFERENCE_FLAG_PRIVATE_UNDEFINED_NON_LAZY    0x04
320#define BFD_MACH_O_REFERENCE_FLAG_PRIVATE_UNDEFINED_LAZY        0x05
321
322#define BFD_MACH_O_REFERENCED_DYNAMICALLY                       0x10
323#define BFD_MACH_O_N_DESC_DISCARDED                             0x20
324#define BFD_MACH_O_N_NO_DEAD_STRIP                              0x20
325#define BFD_MACH_O_N_WEAK_REF                                   0x40
326#define BFD_MACH_O_N_WEAK_DEF                                   0x80
327#define BFD_MACH_O_N_REF_TO_WEAK                                0x80
328
329#define BFD_MACH_O_N_ARM_THUMB_DEF                              0x08
330#define BFD_MACH_O_N_SYMBOL_RESOLVER                            0x100
331
332#define BFD_MACH_O_INDIRECT_SYM_LOCAL                   0x80000000
333#define BFD_MACH_O_INDIRECT_SYM_ABS                     0x40000000
334
335/* Constants for DATA_IN_CODE entries.  */
336typedef enum bfd_mach_o_data_in_code_entry_kind
337{
338  BFD_MACH_O_DICE_KIND_DATA         = 0x0001, /* Data */
339  BFD_MACH_O_DICE_JUMP_TABLES8      = 0x0002, /* 1 byte jump tables.  */
340  BFD_MACH_O_DICE_JUMP_TABLES16     = 0x0003, /* 2 bytes.  */
341  BFD_MACH_O_DICE_JUMP_TABLES32     = 0x0004, /* 4 bytes.  */
342  BFD_MACH_O_DICE_ABS_JUMP_TABLES32 = 0x0005  /* Absolute jump table.  */
343} bfd_mach_o_data_in_code_entry_kind;
344
345/* Thread constants.  */
346
347typedef enum bfd_mach_o_ppc_thread_flavour
348{
349  BFD_MACH_O_PPC_THREAD_STATE      = 1,
350  BFD_MACH_O_PPC_FLOAT_STATE       = 2,
351  BFD_MACH_O_PPC_EXCEPTION_STATE   = 3,
352  BFD_MACH_O_PPC_VECTOR_STATE      = 4,
353  BFD_MACH_O_PPC_THREAD_STATE64    = 5,
354  BFD_MACH_O_PPC_EXCEPTION_STATE64 = 6,
355  BFD_MACH_O_PPC_THREAD_STATE_NONE = 7
356}
357bfd_mach_o_ppc_thread_flavour;
358
359/* Defined in <mach/i386/thread_status.h> */
360typedef enum bfd_mach_o_i386_thread_flavour
361{
362  BFD_MACH_O_x86_THREAD_STATE32    = 1,
363  BFD_MACH_O_x86_FLOAT_STATE32     = 2,
364  BFD_MACH_O_x86_EXCEPTION_STATE32 = 3,
365  BFD_MACH_O_x86_THREAD_STATE64    = 4,
366  BFD_MACH_O_x86_FLOAT_STATE64     = 5,
367  BFD_MACH_O_x86_EXCEPTION_STATE64 = 6,
368  BFD_MACH_O_x86_THREAD_STATE      = 7,
369  BFD_MACH_O_x86_FLOAT_STATE       = 8,
370  BFD_MACH_O_x86_EXCEPTION_STATE   = 9,
371  BFD_MACH_O_x86_DEBUG_STATE32     = 10,
372  BFD_MACH_O_x86_DEBUG_STATE64     = 11,
373  BFD_MACH_O_x86_DEBUG_STATE       = 12,
374  BFD_MACH_O_x86_THREAD_STATE_NONE = 13
375}
376bfd_mach_o_i386_thread_flavour;
377
378#endif /* _MACH_O_LOADER_H */
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