[llvm-objcopy] - Stop using Inputs/alloc-symtab.o
[llvm-complete.git] / docs / yaml2obj.rst
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1 yaml2obj
2 ========
4 yaml2obj takes a YAML description of an object file and converts it to a binary
5 file.
7     $ yaml2obj input-file
9 .. program:: yaml2obj
11 Outputs the binary to stdout.
13 COFF Syntax
14 -----------
16 Here's a sample COFF file.
18 .. code-block:: yaml
20   header:
21     Machine: IMAGE_FILE_MACHINE_I386 # (0x14C)
23   sections:
24     - Name: .text
25       Characteristics: [ IMAGE_SCN_CNT_CODE
26                        , IMAGE_SCN_ALIGN_16BYTES
27                        , IMAGE_SCN_MEM_EXECUTE
28                        , IMAGE_SCN_MEM_READ
29                        ] # 0x60500020
30       SectionData:
31         "\x83\xEC\x0C\xC7\x44\x24\x08\x00\x00\x00\x00\xC7\x04\x24\x00\x00\x00\x00\xE8\x00\x00\x00\x00\xE8\x00\x00\x00\x00\x8B\x44\x24\x08\x83\xC4\x0C\xC3" # |....D$.......$...............D$.....|
33   symbols:
34     - Name: .text
35       Value: 0
36       SectionNumber: 1
37       SimpleType: IMAGE_SYM_TYPE_NULL # (0)
38       ComplexType: IMAGE_SYM_DTYPE_NULL # (0)
39       StorageClass: IMAGE_SYM_CLASS_STATIC # (3)
40       NumberOfAuxSymbols: 1
41       AuxiliaryData:
42         "\x24\x00\x00\x00\x03\x00\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00" # |$.................|
44     - Name: _main
45       Value: 0
46       SectionNumber: 1
47       SimpleType: IMAGE_SYM_TYPE_NULL # (0)
48       ComplexType: IMAGE_SYM_DTYPE_NULL # (0)
49       StorageClass: IMAGE_SYM_CLASS_EXTERNAL # (2)
51 Here's a simplified Kwalify_ schema with an extension to allow alternate types.
53 .. _Kwalify: http://www.kuwata-lab.com/kwalify/ruby/users-guide.html
55 .. code-block:: yaml
57   type: map
58     mapping:
59       header:
60         type: map
61         mapping:
62           Machine: [ {type: str, enum:
63                                  [ IMAGE_FILE_MACHINE_UNKNOWN
64                                  , IMAGE_FILE_MACHINE_AM33
65                                  , IMAGE_FILE_MACHINE_AMD64
66                                  , IMAGE_FILE_MACHINE_ARM
67                                  , IMAGE_FILE_MACHINE_ARMNT
68                                  , IMAGE_FILE_MACHINE_ARM64
69                                  , IMAGE_FILE_MACHINE_EBC
70                                  , IMAGE_FILE_MACHINE_I386
71                                  , IMAGE_FILE_MACHINE_IA64
72                                  , IMAGE_FILE_MACHINE_M32R
73                                  , IMAGE_FILE_MACHINE_MIPS16
74                                  , IMAGE_FILE_MACHINE_MIPSFPU
75                                  , IMAGE_FILE_MACHINE_MIPSFPU16
76                                  , IMAGE_FILE_MACHINE_POWERPC
77                                  , IMAGE_FILE_MACHINE_POWERPCFP
78                                  , IMAGE_FILE_MACHINE_R4000
79                                  , IMAGE_FILE_MACHINE_SH3
80                                  , IMAGE_FILE_MACHINE_SH3DSP
81                                  , IMAGE_FILE_MACHINE_SH4
82                                  , IMAGE_FILE_MACHINE_SH5
83                                  , IMAGE_FILE_MACHINE_THUMB
84                                  , IMAGE_FILE_MACHINE_WCEMIPSV2
85                                  ]}
86                    , {type: int}
87                    ]
88           Characteristics:
89             - type: seq
90               sequence:
91                 - type: str
92                   enum: [ IMAGE_FILE_RELOCS_STRIPPED
93                         , IMAGE_FILE_EXECUTABLE_IMAGE
94                         , IMAGE_FILE_LINE_NUMS_STRIPPED
95                         , IMAGE_FILE_LOCAL_SYMS_STRIPPED
96                         , IMAGE_FILE_AGGRESSIVE_WS_TRIM
97                         , IMAGE_FILE_LARGE_ADDRESS_AWARE
98                         , IMAGE_FILE_BYTES_REVERSED_LO
99                         , IMAGE_FILE_32BIT_MACHINE
100                         , IMAGE_FILE_DEBUG_STRIPPED
101                         , IMAGE_FILE_REMOVABLE_RUN_FROM_SWAP
102                         , IMAGE_FILE_NET_RUN_FROM_SWAP
103                         , IMAGE_FILE_SYSTEM
104                         , IMAGE_FILE_DLL
105                         , IMAGE_FILE_UP_SYSTEM_ONLY
106                         , IMAGE_FILE_BYTES_REVERSED_HI
107                         ]
108             - type: int
109       sections:
110         type: seq
111         sequence:
112           - type: map
113             mapping:
114               Name: {type: str}
115               Characteristics:
116                 - type: seq
117                   sequence:
118                     - type: str
119                       enum: [ IMAGE_SCN_TYPE_NO_PAD
120                             , IMAGE_SCN_CNT_CODE
121                             , IMAGE_SCN_CNT_INITIALIZED_DATA
122                             , IMAGE_SCN_CNT_UNINITIALIZED_DATA
123                             , IMAGE_SCN_LNK_OTHER
124                             , IMAGE_SCN_LNK_INFO
125                             , IMAGE_SCN_LNK_REMOVE
126                             , IMAGE_SCN_LNK_COMDAT
127                             , IMAGE_SCN_GPREL
128                             , IMAGE_SCN_MEM_PURGEABLE
129                             , IMAGE_SCN_MEM_16BIT
130                             , IMAGE_SCN_MEM_LOCKED
131                             , IMAGE_SCN_MEM_PRELOAD
132                             , IMAGE_SCN_ALIGN_1BYTES
133                             , IMAGE_SCN_ALIGN_2BYTES
134                             , IMAGE_SCN_ALIGN_4BYTES
135                             , IMAGE_SCN_ALIGN_8BYTES
136                             , IMAGE_SCN_ALIGN_16BYTES
137                             , IMAGE_SCN_ALIGN_32BYTES
138                             , IMAGE_SCN_ALIGN_64BYTES
139                             , IMAGE_SCN_ALIGN_128BYTES
140                             , IMAGE_SCN_ALIGN_256BYTES
141                             , IMAGE_SCN_ALIGN_512BYTES
142                             , IMAGE_SCN_ALIGN_1024BYTES
143                             , IMAGE_SCN_ALIGN_2048BYTES
144                             , IMAGE_SCN_ALIGN_4096BYTES
145                             , IMAGE_SCN_ALIGN_8192BYTES
146                             , IMAGE_SCN_LNK_NRELOC_OVFL
147                             , IMAGE_SCN_MEM_DISCARDABLE
148                             , IMAGE_SCN_MEM_NOT_CACHED
149                             , IMAGE_SCN_MEM_NOT_PAGED
150                             , IMAGE_SCN_MEM_SHARED
151                             , IMAGE_SCN_MEM_EXECUTE
152                             , IMAGE_SCN_MEM_READ
153                             , IMAGE_SCN_MEM_WRITE
154                             ]
155                 - type: int
156               SectionData: {type: str}
157       symbols:
158         type: seq
159         sequence:
160           - type: map
161             mapping:
162               Name: {type: str}
163               Value: {type: int}
164               SectionNumber: {type: int}
165               SimpleType: [ {type: str, enum: [ IMAGE_SYM_TYPE_NULL
166                                               , IMAGE_SYM_TYPE_VOID
167                                               , IMAGE_SYM_TYPE_CHAR
168                                               , IMAGE_SYM_TYPE_SHORT
169                                               , IMAGE_SYM_TYPE_INT
170                                               , IMAGE_SYM_TYPE_LONG
171                                               , IMAGE_SYM_TYPE_FLOAT
172                                               , IMAGE_SYM_TYPE_DOUBLE
173                                               , IMAGE_SYM_TYPE_STRUCT
174                                               , IMAGE_SYM_TYPE_UNION
175                                               , IMAGE_SYM_TYPE_ENUM
176                                               , IMAGE_SYM_TYPE_MOE
177                                               , IMAGE_SYM_TYPE_BYTE
178                                               , IMAGE_SYM_TYPE_WORD
179                                               , IMAGE_SYM_TYPE_UINT
180                                               , IMAGE_SYM_TYPE_DWORD
181                                               ]}
182                           , {type: int}
183                           ]
184               ComplexType: [ {type: str, enum: [ IMAGE_SYM_DTYPE_NULL
185                                                , IMAGE_SYM_DTYPE_POINTER
186                                                , IMAGE_SYM_DTYPE_FUNCTION
187                                                , IMAGE_SYM_DTYPE_ARRAY
188                                                ]}
189                            , {type: int}
190                            ]
191               StorageClass: [ {type: str, enum:
192                                           [ IMAGE_SYM_CLASS_END_OF_FUNCTION
193                                           , IMAGE_SYM_CLASS_NULL
194                                           , IMAGE_SYM_CLASS_AUTOMATIC
195                                           , IMAGE_SYM_CLASS_EXTERNAL
196                                           , IMAGE_SYM_CLASS_STATIC
197                                           , IMAGE_SYM_CLASS_REGISTER
198                                           , IMAGE_SYM_CLASS_EXTERNAL_DEF
199                                           , IMAGE_SYM_CLASS_LABEL
200                                           , IMAGE_SYM_CLASS_UNDEFINED_LABEL
201                                           , IMAGE_SYM_CLASS_MEMBER_OF_STRUCT
202                                           , IMAGE_SYM_CLASS_ARGUMENT
203                                           , IMAGE_SYM_CLASS_STRUCT_TAG
204                                           , IMAGE_SYM_CLASS_MEMBER_OF_UNION
205                                           , IMAGE_SYM_CLASS_UNION_TAG
206                                           , IMAGE_SYM_CLASS_TYPE_DEFINITION
207                                           , IMAGE_SYM_CLASS_UNDEFINED_STATIC
208                                           , IMAGE_SYM_CLASS_ENUM_TAG
209                                           , IMAGE_SYM_CLASS_MEMBER_OF_ENUM
210                                           , IMAGE_SYM_CLASS_REGISTER_PARAM
211                                           , IMAGE_SYM_CLASS_BIT_FIELD
212                                           , IMAGE_SYM_CLASS_BLOCK
213                                           , IMAGE_SYM_CLASS_FUNCTION
214                                           , IMAGE_SYM_CLASS_END_OF_STRUCT
215                                           , IMAGE_SYM_CLASS_FILE
216                                           , IMAGE_SYM_CLASS_SECTION
217                                           , IMAGE_SYM_CLASS_WEAK_EXTERNAL
218                                           , IMAGE_SYM_CLASS_CLR_TOKEN
219                                           ]}
220                             , {type: int}
221                             ]