CMake/Source/cmLinkItem.h
Stephen Kelly 91411641a7 Move ComputeLinkType out of cmTarget.
Keep it out of the way, so that it does not become part of cmGeneratorTarget,
but where it can be used to implement CMP0003.
2015-10-21 00:52:22 +02:00

146 lines
4.3 KiB
C++

/*============================================================================
CMake - Cross Platform Makefile Generator
Copyright 2004-2015 Kitware, Inc.
Distributed under the OSI-approved BSD License (the "License");
see accompanying file Copyright.txt for details.
This software is distributed WITHOUT ANY WARRANTY; without even the
implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
See the License for more information.
============================================================================*/
#ifndef cmLinkItem_h
#define cmLinkItem_h
#include "cmListFileCache.h"
#include "cmSystemTools.h"
class cmGeneratorTarget;
// Basic information about each link item.
class cmLinkItem: public std::string
{
typedef std::string std_string;
public:
cmLinkItem(): std_string(), Target(0) {}
cmLinkItem(const std_string& n,
cmGeneratorTarget const* t): std_string(n), Target(t) {}
cmLinkItem(cmLinkItem const& r): std_string(r), Target(r.Target) {}
cmGeneratorTarget const* Target;
};
class cmLinkImplItem: public cmLinkItem
{
public:
cmLinkImplItem(): cmLinkItem(), Backtrace(), FromGenex(false) {}
cmLinkImplItem(std::string const& n,
cmGeneratorTarget const* t,
cmListFileBacktrace const& bt,
bool fromGenex):
cmLinkItem(n, t), Backtrace(bt), FromGenex(fromGenex) {}
cmLinkImplItem(cmLinkImplItem const& r):
cmLinkItem(r), Backtrace(r.Backtrace), FromGenex(r.FromGenex) {}
cmListFileBacktrace Backtrace;
bool FromGenex;
};
/** The link implementation specifies the direct library
dependencies needed by the object files of the target. */
struct cmLinkImplementationLibraries
{
// Libraries linked directly in this configuration.
std::vector<cmLinkImplItem> Libraries;
// Libraries linked directly in other configurations.
// Needed only for OLD behavior of CMP0003.
std::vector<cmLinkItem> WrongConfigLibraries;
};
struct cmLinkInterfaceLibraries
{
// Libraries listed in the interface.
std::vector<cmLinkItem> Libraries;
};
struct cmLinkInterface: public cmLinkInterfaceLibraries
{
// Languages whose runtime libraries must be linked.
std::vector<std::string> Languages;
// Shared library dependencies needed for linking on some platforms.
std::vector<cmLinkItem> SharedDeps;
// Number of repetitions of a strongly connected component of two
// or more static libraries.
int Multiplicity;
// Libraries listed for other configurations.
// Needed only for OLD behavior of CMP0003.
std::vector<cmLinkItem> WrongConfigLibraries;
bool ImplementationIsInterface;
cmLinkInterface(): Multiplicity(0), ImplementationIsInterface(false) {}
};
struct cmOptionalLinkInterface: public cmLinkInterface
{
cmOptionalLinkInterface():
LibrariesDone(false), AllDone(false),
Exists(false), HadHeadSensitiveCondition(false),
ExplicitLibraries(0) {}
bool LibrariesDone;
bool AllDone;
bool Exists;
bool HadHeadSensitiveCondition;
const char* ExplicitLibraries;
};
struct cmHeadToLinkInterfaceMap:
public std::map<cmGeneratorTarget const*, cmOptionalLinkInterface>
{
};
struct cmLinkImplementation: public cmLinkImplementationLibraries
{
// Languages whose runtime libraries must be linked.
std::vector<std::string> Languages;
};
// Cache link implementation computation from each configuration.
struct cmOptionalLinkImplementation: public cmLinkImplementation
{
cmOptionalLinkImplementation():
LibrariesDone(false), LanguagesDone(false),
HadHeadSensitiveCondition(false) {}
bool LibrariesDone;
bool LanguagesDone;
bool HadHeadSensitiveCondition;
};
/** Compute the link type to use for the given configuration. */
inline cmTargetLinkLibraryType
CMP0003_ComputeLinkType(const std::string& config,
std::vector<std::string> const& debugConfigs)
{
// No configuration is always optimized.
if(config.empty())
{
return OPTIMIZED_LibraryType;
}
// Check if any entry in the list matches this configuration.
std::string configUpper = cmSystemTools::UpperCase(config);
if (std::find(debugConfigs.begin(), debugConfigs.end(), configUpper) !=
debugConfigs.end())
{
return DEBUG_LibraryType;
}
// The current configuration is not a debug configuration.
return OPTIMIZED_LibraryType;
}
#endif