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/*=========================================================================
Program: CMake - Cross-Platform Makefile Generator
Module: $RCSfile$
Language: C++
Date: $Date$
Version: $Revision$
Copyright (c) 2002 Kitware, Inc., Insight Consortium. All rights reserved.
See Copyright.txt or http://www.cmake.org/HTML/Copyright.html for details.
This software is distributed WITHOUT ANY WARRANTY; without even
the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
PURPOSE. See the above copyright notices for more information.
=========================================================================*/
#ifndef cmComputeLinkInformation_h
#define cmComputeLinkInformation_h
#include "cmStandardIncludes.h"
#include <cmsys/RegularExpression.hxx>
class cmGlobalGenerator;
class cmLocalGenerator;
class cmMakefile;
class cmTarget;
/** \class cmComputeLinkInformation
* \brief Compute link information for a target in one configuration.
*/
class cmComputeLinkInformation
{
public:
cmComputeLinkInformation(cmTarget* target, const char* config);
bool Compute();
struct Item
{
Item(): Value(), IsPath(true) {}
Item(Item const& item): Value(item.Value), IsPath(item.IsPath) {}
Item(std::string const& v, bool p): Value(v), IsPath(p) {}
std::string Value;
bool IsPath;
};
typedef std::vector<Item> ItemVector;
ItemVector const& GetItems();
std::vector<std::string> const& GetDirectories();
std::vector<std::string> const& GetDepends();
std::vector<std::string> const& GetFrameworkPaths();
const char* GetLinkLanguage() const { return this->LinkLanguage; }
std::vector<std::string> const& GetRuntimeSearchPath();
private:
void AddItem(std::string const& item);
// Output information.
ItemVector Items;
std::vector<std::string> Directories;
std::vector<std::string> Depends;
std::vector<std::string> FrameworkPaths;
std::vector<std::string> RuntimeSearchPath;
// Context information.
cmTarget* Target;
cmMakefile* Makefile;
cmLocalGenerator* LocalGenerator;
cmGlobalGenerator* GlobalGenerator;
// Configuration information.
const char* Config;
const char* LinkLanguage;
// System info.
bool UseImportLibrary;
const char* LoaderFlag;
std::string LibLinkFlag;
std::string LibLinkSuffix;
// Link type adjustment.
void ComputeLinkTypeInfo();
enum LinkType { LinkUnknown, LinkStatic, LinkShared };
LinkType StartLinkType;
LinkType CurrentLinkType;
std::string StaticLinkTypeFlag;
std::string SharedLinkTypeFlag;
bool LinkTypeEnabled;
void SetCurrentLinkType(LinkType lt);
// Link item parsing.
void ComputeItemParserInfo();
std::vector<std::string> StaticLinkExtensions;
std::vector<std::string> SharedLinkExtensions;
std::vector<std::string> LinkExtensions;
std::set<cmStdString> LinkPrefixes;
cmsys::RegularExpression RemoveLibraryExtension;
cmsys::RegularExpression ExtractStaticLibraryName;
cmsys::RegularExpression ExtractSharedLibraryName;
cmsys::RegularExpression ExtractAnyLibraryName;
void AddLinkPrefix(const char* p);
void AddLinkExtension(const char* e, LinkType type);
std::string CreateExtensionRegex(std::vector<std::string> const& exts);
std::string NoCaseExpression(const char* str);
// Handling of link items that are not targets or full file paths.
void AddTargetItem(std::string const& item, cmTarget* target);
void AddFullItem(std::string const& item);
void AddUserItem(std::string const& item);
void AddDirectoryItem(std::string const& item);
void AddFrameworkItem(std::string const& item);
void DropDirectoryItem(std::string const& item);
// Framework info.
void ComputeFrameworkInfo();
void AddFrameworkPath(std::string const& p);
std::set<cmStdString> FrameworkPathsEmmitted;
cmsys::RegularExpression SplitFramework;
// Linker search path computation.
void ComputeLinkerSearchDirectories();
void AddLinkerSearchDirectories(std::vector<std::string> const& dirs);
std::set<cmStdString> DirectoriesEmmitted;
// Runtime path computation.
struct LibraryRuntimeEntry
{
// The file name of the library.
std::string FileName;
// The soname of the shared library if it is known.
std::string SOName;
// The directory in which the library is supposed to be found.
std::string Directory;
// The index assigned to the directory.
int DirectoryIndex;
};
bool RuntimeSearchPathComputed;
std::vector<LibraryRuntimeEntry> LibraryRuntimeInfo;
std::set<cmStdString> LibraryRuntimeInfoEmmitted;
std::vector<std::string> RuntimeDirectories;
std::map<cmStdString, int> RuntimeDirectoryIndex;
std::vector<char> RuntimeDirectoryVisited;
void AddLibraryRuntimeInfo(std::string const& fullPath, cmTarget* target);
void AddLibraryRuntimeInfo(std::string const& fullPath,
const char* soname = 0);
void CollectRuntimeDirectories();
int AddRuntimeDirectory(std::string const& dir);
void FindConflictingLibraries();
void FindDirectoriesForLib(unsigned int lri);
void OrderRuntimeSearchPath();
void VisitRuntimeDirectory(unsigned int i, bool top);
void DiagnoseCycle();
bool CycleDiagnosed;
// Adjacency-list representation of runtime path ordering graph.
// This maps from directory to those that must come *before* it.
// Each entry that must come before is a pair. The first element is
// the index of the directory that must come first. The second
// element is the index of the runtime library that added the
// constraint.
typedef std::pair<int, int> RuntimeConflictPair;
struct RuntimeConflictList: public std::vector<RuntimeConflictPair> {};
std::vector<RuntimeConflictList> RuntimeConflictGraph;
};
#endif
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