//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
-//
+//
//===----------------------------------------------------------------------===//
//
-// This file declares the LTOModule class.
+// This file declares the LTOModule class.
//
//===----------------------------------------------------------------------===//
#ifndef LTO_MODULE_H
#define LTO_MODULE_H
-#include "llvm/Module.h"
+#include "llvm-c/lto.h"
#include "llvm/ADT/OwningPtr.h"
-#include "llvm/Target/TargetMachine.h"
#include "llvm/ADT/StringMap.h"
-
-#include "llvm-c/lto.h"
-
-#include <vector>
+#include "llvm/IR/Module.h"
+#include "llvm/MC/MCContext.h"
+#include "llvm/Target/Mangler.h"
+#include "llvm/Target/TargetMachine.h"
#include <string>
+#include <vector>
-
-// forward references to llvm classes
+// Forward references to llvm classes.
namespace llvm {
- class Mangler;
- class MemoryBuffer;
- class GlobalValue;
- class Value;
- class Function;
+ class Function;
+ class GlobalValue;
+ class MemoryBuffer;
+ class TargetOptions;
+ class Value;
}
-
-//
-// C++ class which implements the opaque lto_module_t
-//
+//===----------------------------------------------------------------------===//
+/// LTOModule - C++ class which implements the opaque lto_module_t type.
+///
struct LTOModule {
-
- static bool isBitcodeFile(const void* mem, size_t length);
- static bool isBitcodeFile(const char* path);
-
- static bool isBitcodeFileForTarget(const void* mem,
- size_t length, const char* triplePrefix);
-
- static bool isBitcodeFileForTarget(const char* path,
- const char* triplePrefix);
-
- static LTOModule* makeLTOModule(const char* path,
- std::string& errMsg);
- static LTOModule* makeLTOModule(int fd, const char *path,
- size_t size,
- std::string& errMsg);
- static LTOModule* makeLTOModule(int fd, const char *path,
- size_t file_size,
- size_t map_size,
- off_t offset,
- std::string& errMsg);
- static LTOModule* makeLTOModule(const void* mem, size_t length,
- std::string& errMsg);
-
- const char* getTargetTriple();
- void setTargetTriple(const char*);
- uint32_t getSymbolCount();
- lto_symbol_attributes getSymbolAttributes(uint32_t index);
- const char* getSymbolName(uint32_t index);
-
- llvm::Module * getLLVVMModule() { return _module.get(); }
- const std::vector<const char*> &getAsmUndefinedRefs() {
- return _asm_undefines;
- }
+private:
+ typedef llvm::StringMap<uint8_t> StringSet;
+
+ struct NameAndAttributes {
+ const char *name;
+ uint32_t attributes;
+ bool isFunction;
+ const llvm::GlobalValue *symbol;
+ };
+
+ llvm::OwningPtr<llvm::Module> _module;
+ llvm::OwningPtr<llvm::TargetMachine> _target;
+ std::vector<NameAndAttributes> _symbols;
+
+ // _defines and _undefines only needed to disambiguate tentative definitions
+ StringSet _defines;
+ llvm::StringMap<NameAndAttributes> _undefines;
+ std::vector<const char*> _asm_undefines;
+ llvm::MCContext _context;
+
+ // Use mangler to add GlobalPrefix to names to match linker names.
+ llvm::Mangler _mangler;
+
+ LTOModule(llvm::Module *m, llvm::TargetMachine *t);
+public:
+ /// isBitcodeFile - Returns 'true' if the file or memory contents is LLVM
+ /// bitcode.
+ static bool isBitcodeFile(const void *mem, size_t length);
+ static bool isBitcodeFile(const char *path);
+
+ /// isBitcodeFileForTarget - Returns 'true' if the file or memory contents
+ /// is LLVM bitcode for the specified triple.
+ static bool isBitcodeFileForTarget(const void *mem,
+ size_t length,
+ const char *triplePrefix);
+ static bool isBitcodeFileForTarget(const char *path,
+ const char *triplePrefix);
+
+ /// makeLTOModule - Create an LTOModule. N.B. These methods take ownership
+ /// of the buffer.
+ static LTOModule *makeLTOModule(const char* path,
+ std::string &errMsg);
+ static LTOModule *makeLTOModule(int fd, const char *path,
+ size_t size, std::string &errMsg);
+ static LTOModule *makeLTOModule(int fd, const char *path,
+ size_t file_size,
+ size_t map_size,
+ off_t offset,
+ std::string& errMsg);
+ static LTOModule *makeLTOModule(const void *mem, size_t length,
+ std::string &errMsg);
+
+ /// getTargetTriple - Return the Module's target triple.
+ const char *getTargetTriple() {
+ return _module->getTargetTriple().c_str();
+ }
+
+ /// setTargetTriple - Set the Module's target triple.
+ void setTargetTriple(const char *triple) {
+ _module->setTargetTriple(triple);
+ }
+
+ /// getSymbolCount - Get the number of symbols
+ uint32_t getSymbolCount() {
+ return _symbols.size();
+ }
+
+ /// getSymbolAttributes - Get the attributes for a symbol at the specified
+ /// index.
+ lto_symbol_attributes getSymbolAttributes(uint32_t index) {
+ if (index < _symbols.size())
+ return lto_symbol_attributes(_symbols[index].attributes);
+ return lto_symbol_attributes(0);
+ }
+
+ /// getSymbolName - Get the name of the symbol at the specified index.
+ const char *getSymbolName(uint32_t index) {
+ if (index < _symbols.size())
+ return _symbols[index].name;
+ return NULL;
+ }
+
+ /// getLLVVMModule - Return the Module.
+ llvm::Module *getLLVVMModule() { return _module.get(); }
+
+ /// getAsmUndefinedRefs -
+ const std::vector<const char*> &getAsmUndefinedRefs() {
+ return _asm_undefines;
+ }
+
+ /// getTargetOptions - Fill the TargetOptions object with the options
+ /// specified on the command line.
+ static void getTargetOptions(llvm::TargetOptions &Options);
private:
- LTOModule(llvm::Module* m, llvm::TargetMachine* t);
-
- bool ParseSymbols();
- void addDefinedSymbol(llvm::GlobalValue* def,
- llvm::Mangler& mangler,
- bool isFunction);
- void addPotentialUndefinedSymbol(llvm::GlobalValue* decl,
- llvm::Mangler &mangler);
- void findExternalRefs(llvm::Value* value,
- llvm::Mangler& mangler);
- void addDefinedFunctionSymbol(llvm::Function* f,
- llvm::Mangler &mangler);
- void addDefinedDataSymbol(llvm::GlobalValue* v,
- llvm::Mangler &mangler);
- bool addAsmGlobalSymbols(llvm::MCContext &Context);
- void addAsmGlobalSymbol(const char *,
- lto_symbol_attributes scope);
- void addAsmGlobalSymbolUndef(const char *);
- void addObjCClass(llvm::GlobalVariable* clgv);
- void addObjCCategory(llvm::GlobalVariable* clgv);
- void addObjCClassRef(llvm::GlobalVariable* clgv);
- bool objcClassNameFromExpression(llvm::Constant* c,
- std::string& name);
-
- static bool isTargetMatch(llvm::MemoryBuffer* memBuffer,
- const char* triplePrefix);
-
- static LTOModule* makeLTOModule(llvm::MemoryBuffer* buffer,
- std::string& errMsg);
- static llvm::MemoryBuffer* makeBuffer(const void* mem, size_t length);
-
- typedef llvm::StringMap<uint8_t> StringSet;
-
- struct NameAndAttributes {
- const char* name;
- lto_symbol_attributes attributes;
- };
-
- llvm::OwningPtr<llvm::Module> _module;
- llvm::OwningPtr<llvm::TargetMachine> _target;
- std::vector<NameAndAttributes> _symbols;
- // _defines and _undefines only needed to disambiguate tentative definitions
- StringSet _defines;
- llvm::StringMap<NameAndAttributes> _undefines;
- std::vector<const char*> _asm_undefines;
+ /// parseSymbols - Parse the symbols from the module and model-level ASM and
+ /// add them to either the defined or undefined lists.
+ bool parseSymbols(std::string &errMsg);
+
+ /// addPotentialUndefinedSymbol - Add a symbol which isn't defined just yet
+ /// to a list to be resolved later.
+ void addPotentialUndefinedSymbol(const llvm::GlobalValue *dcl, bool isFunc);
+
+ /// addDefinedSymbol - Add a defined symbol to the list.
+ void addDefinedSymbol(const llvm::GlobalValue *def, bool isFunction);
+
+ /// addDefinedFunctionSymbol - Add a function symbol as defined to the list.
+ void addDefinedFunctionSymbol(const llvm::Function *f);
+
+ /// addDefinedDataSymbol - Add a data symbol as defined to the list.
+ void addDefinedDataSymbol(const llvm::GlobalValue *v);
+
+ /// addAsmGlobalSymbols - Add global symbols from module-level ASM to the
+ /// defined or undefined lists.
+ bool addAsmGlobalSymbols(std::string &errMsg);
+
+ /// addAsmGlobalSymbol - Add a global symbol from module-level ASM to the
+ /// defined list.
+ void addAsmGlobalSymbol(const char *, lto_symbol_attributes scope);
+
+ /// addAsmGlobalSymbolUndef - Add a global symbol from module-level ASM to
+ /// the undefined list.
+ void addAsmGlobalSymbolUndef(const char *);
+
+ /// addObjCClass - Parse i386/ppc ObjC class data structure.
+ void addObjCClass(const llvm::GlobalVariable *clgv);
+
+ /// addObjCCategory - Parse i386/ppc ObjC category data structure.
+ void addObjCCategory(const llvm::GlobalVariable *clgv);
+
+ /// addObjCClassRef - Parse i386/ppc ObjC class list data structure.
+ void addObjCClassRef(const llvm::GlobalVariable *clgv);
+
+ /// objcClassNameFromExpression - Get string that the data pointer points
+ /// to.
+ bool objcClassNameFromExpression(const llvm::Constant* c, std::string &name);
+
+ /// isTargetMatch - Returns 'true' if the memory buffer is for the specified
+ /// target triple.
+ static bool isTargetMatch(llvm::MemoryBuffer *memBuffer,
+ const char *triplePrefix);
+
+ /// makeLTOModule - Create an LTOModule (private version). N.B. This
+ /// method takes ownership of the buffer.
+ static LTOModule *makeLTOModule(llvm::MemoryBuffer *buffer,
+ std::string &errMsg);
+
+ /// makeBuffer - Create a MemoryBuffer from a memory range.
+ static llvm::MemoryBuffer *makeBuffer(const void *mem, size_t length);
};
#endif // LTO_MODULE_H
-
projects / oota-llvm.git / blobdiff