1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
|
#pragma once
#ifdef __GNUC__
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wunused-parameter"
#endif
/*===-- llvm-c/Object.h - Object Lib C Iface --------------------*- C++ -*-===*/
/* */
/* Part of the LLVM Project, under the Apache License v2.0 with LLVM */
/* Exceptions. */
/* See https://llvm.org/LICENSE.txt for license information. */
/* SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception */
/* */
/*===----------------------------------------------------------------------===*/
/* */
/* This header declares the C interface to libLLVMObject.a, which */
/* implements object file reading and writing. */
/* */
/* Many exotic languages can interoperate with C code but have a harder time */
/* with C++ due to name mangling. So in addition to C, this interface enables */
/* tools written in such languages. */
/* */
/*===----------------------------------------------------------------------===*/
#ifndef LLVM_C_OBJECT_H
#define LLVM_C_OBJECT_H
#include "llvm-c/ExternC.h"
#include "llvm-c/Types.h"
#include "llvm/Config/llvm-config.h"
LLVM_C_EXTERN_C_BEGIN
/**
* @defgroup LLVMCObject Object file reading and writing
* @ingroup LLVMC
*
* @{
*/
// Opaque type wrappers
typedef struct LLVMOpaqueSectionIterator *LLVMSectionIteratorRef;
typedef struct LLVMOpaqueSymbolIterator *LLVMSymbolIteratorRef;
typedef struct LLVMOpaqueRelocationIterator *LLVMRelocationIteratorRef;
typedef enum {
LLVMBinaryTypeArchive, /**< Archive file. */
LLVMBinaryTypeMachOUniversalBinary, /**< Mach-O Universal Binary file. */
LLVMBinaryTypeCOFFImportFile, /**< COFF Import file. */
LLVMBinaryTypeIR, /**< LLVM IR. */
LLVMBinaryTypeWinRes, /**< Windows resource (.res) file. */
LLVMBinaryTypeCOFF, /**< COFF Object file. */
LLVMBinaryTypeELF32L, /**< ELF 32-bit, little endian. */
LLVMBinaryTypeELF32B, /**< ELF 32-bit, big endian. */
LLVMBinaryTypeELF64L, /**< ELF 64-bit, little endian. */
LLVMBinaryTypeELF64B, /**< ELF 64-bit, big endian. */
LLVMBinaryTypeMachO32L, /**< MachO 32-bit, little endian. */
LLVMBinaryTypeMachO32B, /**< MachO 32-bit, big endian. */
LLVMBinaryTypeMachO64L, /**< MachO 64-bit, little endian. */
LLVMBinaryTypeMachO64B, /**< MachO 64-bit, big endian. */
LLVMBinaryTypeWasm, /**< Web Assembly. */
} LLVMBinaryType;
/**
* Create a binary file from the given memory buffer.
*
* The exact type of the binary file will be inferred automatically, and the
* appropriate implementation selected. The context may be NULL except if
* the resulting file is an LLVM IR file.
*
* The memory buffer is not consumed by this function. It is the responsibilty
* of the caller to free it with \c LLVMDisposeMemoryBuffer.
*
* If NULL is returned, the \p ErrorMessage parameter is populated with the
* error's description. It is then the caller's responsibility to free this
* message by calling \c LLVMDisposeMessage.
*
* @see llvm::object::createBinary
*/
LLVMBinaryRef LLVMCreateBinary(LLVMMemoryBufferRef MemBuf,
LLVMContextRef Context,
char **ErrorMessage);
/**
* Dispose of a binary file.
*
* The binary file does not own its backing buffer. It is the responsibilty
* of the caller to free it with \c LLVMDisposeMemoryBuffer.
*/
void LLVMDisposeBinary(LLVMBinaryRef BR);
/**
* Retrieves a copy of the memory buffer associated with this object file.
*
* The returned buffer is merely a shallow copy and does not own the actual
* backing buffer of the binary. Nevertheless, it is the responsibility of the
* caller to free it with \c LLVMDisposeMemoryBuffer.
*
* @see llvm::object::getMemoryBufferRef
*/
LLVMMemoryBufferRef LLVMBinaryCopyMemoryBuffer(LLVMBinaryRef BR);
/**
* Retrieve the specific type of a binary.
*
* @see llvm::object::Binary::getType
*/
LLVMBinaryType LLVMBinaryGetType(LLVMBinaryRef BR);
/*
* For a Mach-O universal binary file, retrieves the object file corresponding
* to the given architecture if it is present as a slice.
*
* If NULL is returned, the \p ErrorMessage parameter is populated with the
* error's description. It is then the caller's responsibility to free this
* message by calling \c LLVMDisposeMessage.
*
* It is the responsiblity of the caller to free the returned object file by
* calling \c LLVMDisposeBinary.
*/
LLVMBinaryRef LLVMMachOUniversalBinaryCopyObjectForArch(LLVMBinaryRef BR,
const char *Arch,
size_t ArchLen,
char **ErrorMessage);
/**
* Retrieve a copy of the section iterator for this object file.
*
* If there are no sections, the result is NULL.
*
* The returned iterator is merely a shallow copy. Nevertheless, it is
* the responsibility of the caller to free it with
* \c LLVMDisposeSectionIterator.
*
* @see llvm::object::sections()
*/
LLVMSectionIteratorRef LLVMObjectFileCopySectionIterator(LLVMBinaryRef BR);
/**
* Returns whether the given section iterator is at the end.
*
* @see llvm::object::section_end
*/
LLVMBool LLVMObjectFileIsSectionIteratorAtEnd(LLVMBinaryRef BR,
LLVMSectionIteratorRef SI);
/**
* Retrieve a copy of the symbol iterator for this object file.
*
* If there are no symbols, the result is NULL.
*
* The returned iterator is merely a shallow copy. Nevertheless, it is
* the responsibility of the caller to free it with
* \c LLVMDisposeSymbolIterator.
*
* @see llvm::object::symbols()
*/
LLVMSymbolIteratorRef LLVMObjectFileCopySymbolIterator(LLVMBinaryRef BR);
/**
* Returns whether the given symbol iterator is at the end.
*
* @see llvm::object::symbol_end
*/
LLVMBool LLVMObjectFileIsSymbolIteratorAtEnd(LLVMBinaryRef BR,
LLVMSymbolIteratorRef SI);
void LLVMDisposeSectionIterator(LLVMSectionIteratorRef SI);
void LLVMMoveToNextSection(LLVMSectionIteratorRef SI);
void LLVMMoveToContainingSection(LLVMSectionIteratorRef Sect,
LLVMSymbolIteratorRef Sym);
// ObjectFile Symbol iterators
void LLVMDisposeSymbolIterator(LLVMSymbolIteratorRef SI);
void LLVMMoveToNextSymbol(LLVMSymbolIteratorRef SI);
// SectionRef accessors
const char *LLVMGetSectionName(LLVMSectionIteratorRef SI);
uint64_t LLVMGetSectionSize(LLVMSectionIteratorRef SI);
const char *LLVMGetSectionContents(LLVMSectionIteratorRef SI);
uint64_t LLVMGetSectionAddress(LLVMSectionIteratorRef SI);
LLVMBool LLVMGetSectionContainsSymbol(LLVMSectionIteratorRef SI,
LLVMSymbolIteratorRef Sym);
// Section Relocation iterators
LLVMRelocationIteratorRef LLVMGetRelocations(LLVMSectionIteratorRef Section);
void LLVMDisposeRelocationIterator(LLVMRelocationIteratorRef RI);
LLVMBool LLVMIsRelocationIteratorAtEnd(LLVMSectionIteratorRef Section,
LLVMRelocationIteratorRef RI);
void LLVMMoveToNextRelocation(LLVMRelocationIteratorRef RI);
// SymbolRef accessors
const char *LLVMGetSymbolName(LLVMSymbolIteratorRef SI);
uint64_t LLVMGetSymbolAddress(LLVMSymbolIteratorRef SI);
uint64_t LLVMGetSymbolSize(LLVMSymbolIteratorRef SI);
// RelocationRef accessors
uint64_t LLVMGetRelocationOffset(LLVMRelocationIteratorRef RI);
LLVMSymbolIteratorRef LLVMGetRelocationSymbol(LLVMRelocationIteratorRef RI);
uint64_t LLVMGetRelocationType(LLVMRelocationIteratorRef RI);
// NOTE: Caller takes ownership of returned string of the two
// following functions.
const char *LLVMGetRelocationTypeName(LLVMRelocationIteratorRef RI);
const char *LLVMGetRelocationValueString(LLVMRelocationIteratorRef RI);
/** Deprecated: Use LLVMBinaryRef instead. */
typedef struct LLVMOpaqueObjectFile *LLVMObjectFileRef;
/** Deprecated: Use LLVMCreateBinary instead. */
LLVMObjectFileRef LLVMCreateObjectFile(LLVMMemoryBufferRef MemBuf);
/** Deprecated: Use LLVMDisposeBinary instead. */
void LLVMDisposeObjectFile(LLVMObjectFileRef ObjectFile);
/** Deprecated: Use LLVMObjectFileCopySectionIterator instead. */
LLVMSectionIteratorRef LLVMGetSections(LLVMObjectFileRef ObjectFile);
/** Deprecated: Use LLVMObjectFileIsSectionIteratorAtEnd instead. */
LLVMBool LLVMIsSectionIteratorAtEnd(LLVMObjectFileRef ObjectFile,
LLVMSectionIteratorRef SI);
/** Deprecated: Use LLVMObjectFileCopySymbolIterator instead. */
LLVMSymbolIteratorRef LLVMGetSymbols(LLVMObjectFileRef ObjectFile);
/** Deprecated: Use LLVMObjectFileIsSymbolIteratorAtEnd instead. */
LLVMBool LLVMIsSymbolIteratorAtEnd(LLVMObjectFileRef ObjectFile,
LLVMSymbolIteratorRef SI);
/**
* @}
*/
LLVM_C_EXTERN_C_END
#endif
#ifdef __GNUC__
#pragma GCC diagnostic pop
#endif
|
