1 //===- Object.cpp - C bindings to the object file library--------*- C++ -*-===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 // This file defines the C bindings to the file-format-independent object
13 //===----------------------------------------------------------------------===//
15 #include "llvm/ADT/SmallVector.h"
16 #include "llvm-c/Object.h"
17 #include "llvm/Object/ObjectFile.h"
20 using namespace object;
22 inline OwningBinary<ObjectFile> *unwrap(LLVMObjectFileRef OF) {
23 return reinterpret_cast<OwningBinary<ObjectFile> *>(OF);
26 inline LLVMObjectFileRef wrap(const OwningBinary<ObjectFile> *OF) {
27 return reinterpret_cast<LLVMObjectFileRef>(
28 const_cast<OwningBinary<ObjectFile> *>(OF));
31 inline section_iterator *unwrap(LLVMSectionIteratorRef SI) {
32 return reinterpret_cast<section_iterator*>(SI);
35 inline LLVMSectionIteratorRef
36 wrap(const section_iterator *SI) {
37 return reinterpret_cast<LLVMSectionIteratorRef>
38 (const_cast<section_iterator*>(SI));
41 inline symbol_iterator *unwrap(LLVMSymbolIteratorRef SI) {
42 return reinterpret_cast<symbol_iterator*>(SI);
45 inline LLVMSymbolIteratorRef
46 wrap(const symbol_iterator *SI) {
47 return reinterpret_cast<LLVMSymbolIteratorRef>
48 (const_cast<symbol_iterator*>(SI));
51 inline relocation_iterator *unwrap(LLVMRelocationIteratorRef SI) {
52 return reinterpret_cast<relocation_iterator*>(SI);
55 inline LLVMRelocationIteratorRef
56 wrap(const relocation_iterator *SI) {
57 return reinterpret_cast<LLVMRelocationIteratorRef>
58 (const_cast<relocation_iterator*>(SI));
61 // ObjectFile creation
62 LLVMObjectFileRef LLVMCreateObjectFile(LLVMMemoryBufferRef MemBuf) {
63 std::unique_ptr<MemoryBuffer> Buf(unwrap(MemBuf));
64 ErrorOr<std::unique_ptr<ObjectFile>> ObjOrErr(
65 ObjectFile::createObjectFile(Buf->getMemBufferRef()));
66 std::unique_ptr<ObjectFile> Obj;
70 auto *Ret = new OwningBinary<ObjectFile>(std::move(ObjOrErr.get()), std::move(Buf));
74 void LLVMDisposeObjectFile(LLVMObjectFileRef ObjectFile) {
75 delete unwrap(ObjectFile);
78 // ObjectFile Section iterators
79 LLVMSectionIteratorRef LLVMGetSections(LLVMObjectFileRef OF) {
80 OwningBinary<ObjectFile> *OB = unwrap(OF);
81 section_iterator SI = OB->getBinary()->section_begin();
82 return wrap(new section_iterator(SI));
85 void LLVMDisposeSectionIterator(LLVMSectionIteratorRef SI) {
89 LLVMBool LLVMIsSectionIteratorAtEnd(LLVMObjectFileRef OF,
90 LLVMSectionIteratorRef SI) {
91 OwningBinary<ObjectFile> *OB = unwrap(OF);
92 return (*unwrap(SI) == OB->getBinary()->section_end()) ? 1 : 0;
95 void LLVMMoveToNextSection(LLVMSectionIteratorRef SI) {
99 void LLVMMoveToContainingSection(LLVMSectionIteratorRef Sect,
100 LLVMSymbolIteratorRef Sym) {
101 ErrorOr<section_iterator> SecOrErr = (*unwrap(Sym))->getSection();
102 if (std::error_code ec = SecOrErr.getError())
103 report_fatal_error(ec.message());
104 *unwrap(Sect) = *SecOrErr;
107 // ObjectFile Symbol iterators
108 LLVMSymbolIteratorRef LLVMGetSymbols(LLVMObjectFileRef OF) {
109 OwningBinary<ObjectFile> *OB = unwrap(OF);
110 symbol_iterator SI = OB->getBinary()->symbol_begin();
111 return wrap(new symbol_iterator(SI));
114 void LLVMDisposeSymbolIterator(LLVMSymbolIteratorRef SI) {
118 LLVMBool LLVMIsSymbolIteratorAtEnd(LLVMObjectFileRef OF,
119 LLVMSymbolIteratorRef SI) {
120 OwningBinary<ObjectFile> *OB = unwrap(OF);
121 return (*unwrap(SI) == OB->getBinary()->symbol_end()) ? 1 : 0;
124 void LLVMMoveToNextSymbol(LLVMSymbolIteratorRef SI) {
128 // SectionRef accessors
129 const char *LLVMGetSectionName(LLVMSectionIteratorRef SI) {
131 if (std::error_code ec = (*unwrap(SI))->getName(ret))
132 report_fatal_error(ec.message());
136 uint64_t LLVMGetSectionSize(LLVMSectionIteratorRef SI) {
137 return (*unwrap(SI))->getSize();
140 const char *LLVMGetSectionContents(LLVMSectionIteratorRef SI) {
142 if (std::error_code ec = (*unwrap(SI))->getContents(ret))
143 report_fatal_error(ec.message());
147 uint64_t LLVMGetSectionAddress(LLVMSectionIteratorRef SI) {
148 return (*unwrap(SI))->getAddress();
151 LLVMBool LLVMGetSectionContainsSymbol(LLVMSectionIteratorRef SI,
152 LLVMSymbolIteratorRef Sym) {
153 return (*unwrap(SI))->containsSymbol(**unwrap(Sym));
156 // Section Relocation iterators
157 LLVMRelocationIteratorRef LLVMGetRelocations(LLVMSectionIteratorRef Section) {
158 relocation_iterator SI = (*unwrap(Section))->relocation_begin();
159 return wrap(new relocation_iterator(SI));
162 void LLVMDisposeRelocationIterator(LLVMRelocationIteratorRef SI) {
166 LLVMBool LLVMIsRelocationIteratorAtEnd(LLVMSectionIteratorRef Section,
167 LLVMRelocationIteratorRef SI) {
168 return (*unwrap(SI) == (*unwrap(Section))->relocation_end()) ? 1 : 0;
171 void LLVMMoveToNextRelocation(LLVMRelocationIteratorRef SI) {
176 // SymbolRef accessors
177 const char *LLVMGetSymbolName(LLVMSymbolIteratorRef SI) {
178 ErrorOr<StringRef> Ret = (*unwrap(SI))->getName();
179 if (std::error_code EC = Ret.getError())
180 report_fatal_error(EC.message());
184 uint64_t LLVMGetSymbolAddress(LLVMSymbolIteratorRef SI) {
185 ErrorOr<uint64_t> Ret = (*unwrap(SI))->getAddress();
186 if (std::error_code EC = Ret.getError())
187 report_fatal_error(EC.message());
191 uint64_t LLVMGetSymbolSize(LLVMSymbolIteratorRef SI) {
192 return (*unwrap(SI))->getCommonSize();
195 // RelocationRef accessors
196 uint64_t LLVMGetRelocationOffset(LLVMRelocationIteratorRef RI) {
197 return (*unwrap(RI))->getOffset();
200 LLVMSymbolIteratorRef LLVMGetRelocationSymbol(LLVMRelocationIteratorRef RI) {
201 symbol_iterator ret = (*unwrap(RI))->getSymbol();
202 return wrap(new symbol_iterator(ret));
205 uint64_t LLVMGetRelocationType(LLVMRelocationIteratorRef RI) {
206 return (*unwrap(RI))->getType();
209 // NOTE: Caller takes ownership of returned string.
210 const char *LLVMGetRelocationTypeName(LLVMRelocationIteratorRef RI) {
211 SmallVector<char, 0> ret;
212 (*unwrap(RI))->getTypeName(ret);
213 char *str = static_cast<char*>(malloc(ret.size()));
214 std::copy(ret.begin(), ret.end(), str);
218 // NOTE: Caller takes ownership of returned string.
219 const char *LLVMGetRelocationValueString(LLVMRelocationIteratorRef RI) {