#ifndef LLVM_LTO_LTOMODULE_H
#define LLVM_LTO_LTOMODULE_H
#include "llvm-c/lto.h"
#include "llvm/ADT/StringMap.h"
#include "llvm/ADT/StringSet.h"
#include "llvm/IR/Module.h"
#include "llvm/MC/MCContext.h"
#include "llvm/MC/MCObjectFileInfo.h"
#include "llvm/Object/IRObjectFile.h"
#include "llvm/Target/TargetMachine.h"
#include <string>
#include <vector>
namespace llvm {
class Function;
class GlobalValue;
class MemoryBuffer;
class TargetOptions;
class Value;
struct LTOModule {
private:
struct NameAndAttributes {
const char *name;
uint32_t attributes;
bool isFunction;
const GlobalValue *symbol;
};
std::unique_ptr<LLVMContext> OwnedContext;
std::string LinkerOpts;
std::unique_ptr<object::IRObjectFile> IRFile;
std::unique_ptr<TargetMachine> _target;
std::vector<NameAndAttributes> _symbols;
StringSet<> _defines;
StringMap<NameAndAttributes> _undefines;
std::vector<const char*> _asm_undefines;
std::vector<const char*> _asm_symbols;
LTOModule(std::unique_ptr<object::IRObjectFile> Obj, TargetMachine *TM);
LTOModule(std::unique_ptr<object::IRObjectFile> Obj, TargetMachine *TM,
std::unique_ptr<LLVMContext> Context);
public:
~LTOModule();
static bool isBitcodeFile(const void *mem, size_t length);
static bool isBitcodeFile(const char *path);
bool isThinLTO();
static bool isBitcodeForTarget(MemoryBuffer *memBuffer,
StringRef triplePrefix);
static std::string getProducerString(MemoryBuffer *Buffer);
static std::unique_ptr<MemoryBuffer>
makeBuffer(const void *mem, size_t length, StringRef name = "");
static ErrorOr<std::unique_ptr<LTOModule>>
createFromFile(LLVMContext &Context, const char *path, TargetOptions options);
static ErrorOr<std::unique_ptr<LTOModule>>
createFromOpenFile(LLVMContext &Context, int fd, const char *path,
size_t size, TargetOptions options);
static ErrorOr<std::unique_ptr<LTOModule>>
createFromOpenFileSlice(LLVMContext &Context, int fd, const char *path,
size_t map_size, off_t offset, TargetOptions options);
static ErrorOr<std::unique_ptr<LTOModule>>
createFromBuffer(LLVMContext &Context, const void *mem, size_t length,
TargetOptions options, StringRef path = "");
static ErrorOr<std::unique_ptr<LTOModule>>
createInLocalContext(const void *mem, size_t length, TargetOptions options,
StringRef path);
static ErrorOr<std::unique_ptr<LTOModule>>
createInContext(const void *mem, size_t length, TargetOptions options,
StringRef path, LLVMContext *Context);
const Module &getModule() const {
return const_cast<LTOModule*>(this)->getModule();
}
Module &getModule() {
return IRFile->getModule();
}
std::unique_ptr<Module> takeModule() { return IRFile->takeModule(); }
const std::string &getTargetTriple() {
return getModule().getTargetTriple();
}
void setTargetTriple(StringRef Triple) {
getModule().setTargetTriple(Triple);
}
uint32_t getSymbolCount() {
return _symbols.size();
}
lto_symbol_attributes getSymbolAttributes(uint32_t index) {
if (index < _symbols.size())
return lto_symbol_attributes(_symbols[index].attributes);
return lto_symbol_attributes(0);
}
const char *getSymbolName(uint32_t index) {
if (index < _symbols.size())
return _symbols[index].name;
return nullptr;
}
uint32_t getAsmSymbolCount() {
return _asm_symbols.size();
}
const char *getAsmSymbolName(uint32_t index) {
if (index < _asm_symbols.size())
return _asm_symbols[index];
return nullptr;
}
const GlobalValue *getSymbolGV(uint32_t index) {
if (index < _symbols.size())
return _symbols[index].symbol;
return nullptr;
}
const char *getLinkerOpts() {
return LinkerOpts.c_str();
}
const std::vector<const char*> &getAsmUndefinedRefs() {
return _asm_undefines;
}
private:
void parseMetadata();
void parseSymbols();
void addPotentialUndefinedSymbol(const object::BasicSymbolRef &Sym,
bool isFunc);
void addDefinedSymbol(const char *Name, const GlobalValue *def,
bool isFunction);
void addDefinedDataSymbol(const object::BasicSymbolRef &Sym);
void addDefinedDataSymbol(const char*Name, const GlobalValue *v);
void addDefinedFunctionSymbol(const object::BasicSymbolRef &Sym);
void addDefinedFunctionSymbol(const char *Name, const Function *F);
void addAsmGlobalSymbol(const char *, lto_symbol_attributes scope);
void addAsmGlobalSymbolUndef(const char *);
void addObjCClass(const GlobalVariable *clgv);
void addObjCCategory(const GlobalVariable *clgv);
void addObjCClassRef(const GlobalVariable *clgv);
bool objcClassNameFromExpression(const Constant *c, std::string &name);
static ErrorOr<std::unique_ptr<LTOModule>>
makeLTOModule(MemoryBufferRef Buffer, TargetOptions options,
LLVMContext *Context);
};
}
#endif