DirectXShaderCompiler/lib/Object/Object.cpp at main · microsoft/DirectXShaderCompiler · GitHub

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//===- 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));

ErrorOr<std::unique_ptr<ObjectFile>> ObjOrErr(

ObjectFile::createObjectFile(Buf->getMemBufferRef()));

std::unique_ptr<ObjectFile> Obj;

if (!ObjOrErr)

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) {

if (std::error_code ec = (*unwrap(Sym))->getSection(*unwrap(Sect)))

report_fatal_error(ec.message());

}

// 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) {

ErrorOr<StringRef> Ret = (*unwrap(SI))->getName();

if (std::error_code EC = Ret.getError())

report_fatal_error(EC.message());

return Ret->data();

}

uint64_t LLVMGetSymbolAddress(LLVMSymbolIteratorRef SI) {

ErrorOr<uint64_t> Ret = (*unwrap(SI))->getAddress();

if (std::error_code EC = Ret.getError())

report_fatal_error(EC.message());

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("");

}

DirectXShaderCompiler/lib/Object/Object.cpp at main · microsoft/DirectXShaderCompiler · GitHub

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