llvm.org GIT mirror llvm / release_39 lib / Object / Object.cpp
release_39

Tree @release_39 (Download .tar.gz)

Object.cpp @release_39

e243fd9
 
 
 
 
 
 
 
 
 
 
 
 
 
40be1e8
e243fd9
974a445
e243fd9
 
 
 
548f2b6
 
3e39731
 
548f2b6
 
 
3e39731
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
3cb0567
e243fd9
b138cab
c6bf9be
548f2b6
 
c6bf9be
 
 
ea38850
c6bf9be
ea38850
 
548f2b6
e243fd9
 
 
 
 
 
3cb0567
548f2b6
 
 
4344b1e
e243fd9
 
 
 
 
 
548f2b6
 
 
 
e243fd9
 
 
efdbec8
e243fd9
 
e2fa64e
 
a486dca
 
 
 
 
 
 
 
e84d8c1
e2fa64e
 
3cb0567
548f2b6
 
 
3cb0567
 
 
 
 
 
 
548f2b6
 
 
 
3cb0567
 
 
efdbec8
3cb0567
 
 
e243fd9
25b1577
4e2b922
25b1577
 
e243fd9
 
 
8175be5
e243fd9
 
 
25b1577
4e2b922
25b1577
 
e243fd9
3cb0567
 
8175be5
3cb0567
 
ca7eb3e
3cb0567
8175be5
3cb0567
 
d8b0b91
 
a40b352
d8b0b91
 
 
 
 
 
 
 
 
a40b352
d8b0b91
 
 
efdbec8
d8b0b91
 
 
3cb0567
 
813e0cf
 
 
 
 
 
 
 
8a80641
3cb0567
 
 
317de7c
 
 
 
 
 
 
 
5954faa
3cb0567
 
 
821b06f
3cb0567
 
3529c53
b0436a7
ff67629
b0436a7
 
3529c53
6c1202c
3529c53
 
 
 
7ede964
3529c53
 
 
 
 
f8a35ff
3529c53
 
 
 
 
 
 
8c7a0fd
3529c53
 
//===- Object.cpp - C bindings to the object file library--------*- C++ -*-===//
//
//                     The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file defines the C bindings to the file-format-independent object
// library.
//
//===----------------------------------------------------------------------===//

#include "llvm/ADT/SmallVector.h"
#include "llvm-c/Object.h"
#include "llvm/Object/ObjectFile.h"

using namespace llvm;
using namespace object;

inline OwningBinary<ObjectFile> *unwrap(LLVMObjectFileRef OF) {
  return reinterpret_cast<OwningBinary<ObjectFile> *>(OF);
}

inline LLVMObjectFileRef wrap(const OwningBinary<ObjectFile> *OF) {
  return reinterpret_cast<LLVMObjectFileRef>(
      const_cast<OwningBinary<ObjectFile> *>(OF));
}

inline section_iterator *unwrap(LLVMSectionIteratorRef SI) {
  return reinterpret_cast<section_iterator*>(SI);
}

inline LLVMSectionIteratorRef
wrap(const section_iterator *SI) {
  return reinterpret_cast<LLVMSectionIteratorRef>
    (const_cast<section_iterator*>(SI));
}

inline symbol_iterator *unwrap(LLVMSymbolIteratorRef SI) {
  return reinterpret_cast<symbol_iterator*>(SI);
}

inline LLVMSymbolIteratorRef
wrap(const symbol_iterator *SI) {
  return reinterpret_cast<LLVMSymbolIteratorRef>
    (const_cast<symbol_iterator*>(SI));
}

inline relocation_iterator *unwrap(LLVMRelocationIteratorRef SI) {
  return reinterpret_cast<relocation_iterator*>(SI);
}

inline LLVMRelocationIteratorRef
wrap(const relocation_iterator *SI) {
  return reinterpret_cast<LLVMRelocationIteratorRef>
    (const_cast<relocation_iterator*>(SI));
}

// ObjectFile creation
LLVMObjectFileRef LLVMCreateObjectFile(LLVMMemoryBufferRef MemBuf) {
  std::unique_ptr<MemoryBuffer> Buf(unwrap(MemBuf));
  Expected<std::unique_ptr<ObjectFile>> ObjOrErr(
      ObjectFile::createObjectFile(Buf->getMemBufferRef()));
  std::unique_ptr<ObjectFile> Obj;
  if (!ObjOrErr) {
    // TODO: Actually report errors helpfully.
    consumeError(ObjOrErr.takeError());
    return nullptr;
  }

  auto *Ret = new OwningBinary<ObjectFile>(std::move(ObjOrErr.get()), std::move(Buf));
  return wrap(Ret);
}

void LLVMDisposeObjectFile(LLVMObjectFileRef ObjectFile) {
  delete unwrap(ObjectFile);
}

// ObjectFile Section iterators
LLVMSectionIteratorRef LLVMGetSections(LLVMObjectFileRef OF) {
  OwningBinary<ObjectFile> *OB = unwrap(OF);
  section_iterator SI = OB->getBinary()->section_begin();
  return wrap(new section_iterator(SI));
}

void LLVMDisposeSectionIterator(LLVMSectionIteratorRef SI) {
  delete unwrap(SI);
}

LLVMBool LLVMIsSectionIteratorAtEnd(LLVMObjectFileRef OF,
                                    LLVMSectionIteratorRef SI) {
  OwningBinary<ObjectFile> *OB = unwrap(OF);
  return (*unwrap(SI) == OB->getBinary()->section_end()) ? 1 : 0;
}

void LLVMMoveToNextSection(LLVMSectionIteratorRef SI) {
  ++(*unwrap(SI));
}

void LLVMMoveToContainingSection(LLVMSectionIteratorRef Sect,
                                 LLVMSymbolIteratorRef Sym) {
  Expected<section_iterator> SecOrErr = (*unwrap(Sym))->getSection();
  if (!SecOrErr) {
   std::string Buf;
   raw_string_ostream OS(Buf);
   logAllUnhandledErrors(SecOrErr.takeError(), OS, "");
   OS.flush();
   report_fatal_error(Buf);
  }
  *unwrap(Sect) = *SecOrErr;
}

// ObjectFile Symbol iterators
LLVMSymbolIteratorRef LLVMGetSymbols(LLVMObjectFileRef OF) {
  OwningBinary<ObjectFile> *OB = unwrap(OF);
  symbol_iterator SI = OB->getBinary()->symbol_begin();
  return wrap(new symbol_iterator(SI));
}

void LLVMDisposeSymbolIterator(LLVMSymbolIteratorRef SI) {
  delete unwrap(SI);
}

LLVMBool LLVMIsSymbolIteratorAtEnd(LLVMObjectFileRef OF,
                                   LLVMSymbolIteratorRef SI) {
  OwningBinary<ObjectFile> *OB = unwrap(OF);
  return (*unwrap(SI) == OB->getBinary()->symbol_end()) ? 1 : 0;
}

void LLVMMoveToNextSymbol(LLVMSymbolIteratorRef SI) {
  ++(*unwrap(SI));
}

// SectionRef accessors
const char *LLVMGetSectionName(LLVMSectionIteratorRef SI) {
  StringRef ret;
  if (std::error_code ec = (*unwrap(SI))->getName(ret))
   report_fatal_error(ec.message());
  return ret.data();
}

uint64_t LLVMGetSectionSize(LLVMSectionIteratorRef SI) {
  return (*unwrap(SI))->getSize();
}

const char *LLVMGetSectionContents(LLVMSectionIteratorRef SI) {
  StringRef ret;
  if (std::error_code ec = (*unwrap(SI))->getContents(ret))
    report_fatal_error(ec.message());
  return ret.data();
}

uint64_t LLVMGetSectionAddress(LLVMSectionIteratorRef SI) {
  return (*unwrap(SI))->getAddress();
}

LLVMBool LLVMGetSectionContainsSymbol(LLVMSectionIteratorRef SI,
                                 LLVMSymbolIteratorRef Sym) {
  return (*unwrap(SI))->containsSymbol(**unwrap(Sym));
}

// Section Relocation iterators
LLVMRelocationIteratorRef LLVMGetRelocations(LLVMSectionIteratorRef Section) {
  relocation_iterator SI = (*unwrap(Section))->relocation_begin();
  return wrap(new relocation_iterator(SI));
}

void LLVMDisposeRelocationIterator(LLVMRelocationIteratorRef SI) {
  delete unwrap(SI);
}

LLVMBool LLVMIsRelocationIteratorAtEnd(LLVMSectionIteratorRef Section,
                                       LLVMRelocationIteratorRef SI) {
  return (*unwrap(SI) == (*unwrap(Section))->relocation_end()) ? 1 : 0;
}

void LLVMMoveToNextRelocation(LLVMRelocationIteratorRef SI) {
  ++(*unwrap(SI));
}


// SymbolRef accessors
const char *LLVMGetSymbolName(LLVMSymbolIteratorRef SI) {
  Expected<StringRef> Ret = (*unwrap(SI))->getName();
  if (!Ret) {
    std::string Buf;
    raw_string_ostream OS(Buf);
    logAllUnhandledErrors(Ret.takeError(), OS, "");
    OS.flush();
    report_fatal_error(Buf);
  }
  return Ret->data();
}

uint64_t LLVMGetSymbolAddress(LLVMSymbolIteratorRef SI) {
  Expected<uint64_t> Ret = (*unwrap(SI))->getAddress();
  if (!Ret) {
    std::string Buf;
    raw_string_ostream OS(Buf);
    logAllUnhandledErrors(Ret.takeError(), OS, "");
    OS.flush();
    report_fatal_error(Buf);
  }
  return *Ret;
}

uint64_t LLVMGetSymbolSize(LLVMSymbolIteratorRef SI) {
  return (*unwrap(SI))->getCommonSize();
}

// RelocationRef accessors
uint64_t LLVMGetRelocationOffset(LLVMRelocationIteratorRef RI) {
  return (*unwrap(RI))->getOffset();
}

LLVMSymbolIteratorRef LLVMGetRelocationSymbol(LLVMRelocationIteratorRef RI) {
  symbol_iterator ret = (*unwrap(RI))->getSymbol();
  return wrap(new symbol_iterator(ret));
}

uint64_t LLVMGetRelocationType(LLVMRelocationIteratorRef RI) {
  return (*unwrap(RI))->getType();
}

// NOTE: Caller takes ownership of returned string.
const char *LLVMGetRelocationTypeName(LLVMRelocationIteratorRef RI) {
  SmallVector<char, 0> ret;
  (*unwrap(RI))->getTypeName(ret);
  char *str = static_cast<char*>(malloc(ret.size()));
  std::copy(ret.begin(), ret.end(), str);
  return str;
}

// NOTE: Caller takes ownership of returned string.
const char *LLVMGetRelocationValueString(LLVMRelocationIteratorRef RI) {
  return strdup("");
}