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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.
=========================================================================*/
#include "cmTarget.h"
#include "cmake.h"
#include "cmMakefile.h"
#include "cmSourceFile.h"
#include "cmLocalGenerator.h"
#include "cmGlobalGenerator.h"
#include <map>
#include <set>
#include <queue>
#include <stdlib.h> // required for atof
const char* cmTarget::TargetTypeNames[] = {
"EXECUTABLE", "STATIC_LIBRARY",
"SHARED_LIBRARY", "MODULE_LIBRARY", "UTILITY", "GLOBAL_TARGET",
"INSTALL_FILES", "INSTALL_PROGRAMS", "INSTALL_DIRECTORY"
};
//----------------------------------------------------------------------------
cmTarget::cmTarget()
{
this->Makefile = 0;
this->LinkLibrariesAnalyzed = false;
this->LinkDirectoriesComputed = false;
this->HaveInstallRule = false;
this->DLLPlatform = false;
this->IsImportedTarget = false;
}
// define properties
void cmTarget::DefineProperties(cmake *cm)
{
cm->DefineProperty
("BUILD_WITH_INSTALL_RPATH", cmProperty::TARGET,
"Should build tree targets have install tree rpaths.",
"BUILD_WITH_INSTALL_RPATH is a boolean specifying whether to link "
"the target in the build tree with the INSTALL_RPATH. This takes "
"precedence over SKIP_BUILD_RPATH and avoids the need for relinking "
"before installation.");
cm->DefineProperty
("CLEAN_DIRECT_OUTPUT", cmProperty::TARGET,
"Do not delete other varients of this target.",
"When a library is built CMake by default generates code to remove "
"any existing library using all possible names. This is needed "
"to support libraries that switch between STATIC and SHARED by "
"a user option. However when using OUTPUT_NAME to build a static "
"and shared library of the same name using different logical target "
"names the two targets will remove each other's files. This can be "
"prevented by setting the CLEAN_DIRECT_OUTPUT property to 1.");
cm->DefineProperty
("COMPILE_FLAGS", cmProperty::TARGET,
"Additional flags to yse when compiling this target's sources.",
"The COMPILE_FLAGS property sets additional compiler flags used "
"to build sources within the target. It may also be used to pass "
"additional preprocessor definitions.");
cm->DefineProperty
("DEFINE_SYMBOL", cmProperty::TARGET,
"Define a symbol when compiling this target's sources.",
"DEFINE_SYMBOL sets the name of the preprocessor symbol defined when "
"compiling sources in a shared library. "
"If not set here then it is set to target_EXPORTS by default "
"(with some substitutions if the target is not a valid C "
"identifier). This is useful for headers to know whether they are "
"being included from inside their library our outside to properly "
"setup dllexport/dllimport decorations. ");
cm->DefineProperty
("DEBUG_POSTFIX", cmProperty::TARGET,
"A postfix that will be applied to this target when build debug.",
"A property on a target that sepcifies a postfix to add to the "
"target name when built in debug mode. For example foo.dll "
"versus fooD.dll");
cm->DefineProperty
("EchoString", cmProperty::TARGET,
"A message to be displayed when the target is built.",
"A message to display on some generaters (such as makefiles) when "
"the target is built.");
cm->DefineProperty
("HAS_CXX", cmProperty::TARGET,
"Force a target to use the CXX linker.",
"Setting HAS_CXX on a target will force the target to use the "
"C++ linker (and C++ runtime libraries) for linking even if the "
"target has no C++ code in it.");
cm->DefineProperty
("IMPORT_PREFIX", cmProperty::TARGET,
"What comes before the import library name.",
"Similar to the target property PREFIX, but used for import libraries "
"(typically corresponding to a DLL) instead of regular libraries. "
"A target property that can be set to override the prefix "
"(such as \"lib\") on an import library name.");
cm->DefineProperty
("IMPORT_SUFFIX", cmProperty::TARGET,
"What comes after the import library name.",
"Similar to the target property SUFFIX, but used for import libraries "
"(typically corresponding to a DLL) instead of regular libraries. "
"A target property that can be set to override the suffix "
"(such as \".lib\") on an import library name.");
cm->DefineProperty
("EXCLUDE_FROM_ALL", cmProperty::TARGET,
"Exclude the target from the all target.",
"A property on a target that indicates if the target is excluded "
"from the default build target. If it is not, then with a Makefile "
"for example typing make will couse this target to be built as well. "
"The same concept applies to the default build of other generators.",
true);
cm->DefineProperty
("INSTALL_NAME_DIR", cmProperty::TARGET,
"Mac OSX directory name for installed targets.",
"INSTALL_NAME_DIR is a string specifying the "
"directory portion of the \"install_name\" field of shared libraries "
"on Mac OSX to use in the installed targets. ");
cm->DefineProperty
("INSTALL_RPATH", cmProperty::TARGET,
"The rpath to use for installed targets.",
"A semicolon-separated list specifying the rpath "
"to use in installed targets (for platforms that support it).");
cm->DefineProperty
("INSTALL_RPATH_USE_LINK_PATH", cmProperty::TARGET,
"Add paths to linker search and installed rpath.",
"INSTALL_RPATH_USE_LINK_PATH is a boolean that if set to true will "
"append directories in the linker search path and outside the "
"project to the INSTALL_RPATH. ");
cm->DefineProperty
("LINK_FLAGS", cmProperty::TARGET,
"Additional flags to use when linking this target.",
"The LINK_FLAGS property can be used to add extra flags to the "
"link step of a target. LINK_FLAGS_<CONFIG> will add to the "
"configuration <CONFIG>, "
"for example, DEBUG, RELEASE, MINSIZEREL, RELWITHDEBINFO. ");
cm->DefineProperty
("LINKER_LANGUAGE", cmProperty::TARGET,
"What tool to use for linking, based on language.",
"The LINKER_LANGUAGE property is used to change the tool "
"used to link an executable or shared library. The default is "
"set the language to match the files in the library. CXX and C "
"are common values for this property.");
cm->DefineProperty
("LOCATION", cmProperty::TARGET,
"Where a target will be written on disk.",
"A read only property on a target that indicates where that target "
"will be written. For libraries and execuatables this will be where "
"the file is written on disk. This property is computed based on a "
"number of other settings.");
cm->DefineProperty
("OUTPUT_NAME", cmProperty::TARGET,
"Sets the real name of a target when it is built.",
"Sets the real name of a target when it is built and "
"can be used to help create two targets of the same name even though "
"CMake requires unique logical target names. There is also a "
"<CONFIG>_OUTPUT_NAME that can set the output name on a "
"per-configuration basis.");
cm->DefineProperty
("PRE_INSTALL_SCRIPT", cmProperty::TARGET,
"Deprecated install support.",
"The PRE_INSTALL_SCRIPT and POST_INSTALL_SCRIPT properties are the "
"old way to specify CMake scripts to run before and after "
"installing a target. They are used only when the old "
"INSTALL_TARGETS command is used to install the target. Use the "
"INSTALL command instead.");
cm->DefineProperty
("PREFIX", cmProperty::TARGET,
"What comes before the library name.",
"A target property that can be set to override the prefix "
"(such as \"lib\") on a library name.");
cm->DefineProperty
("POST_INSTALL_SCRIPT", cmProperty::TARGET,
"Deprecated install support.",
"The PRE_INSTALL_SCRIPT and POST_INSTALL_SCRIPT properties are the "
"old way to specify CMake scripts to run before and after "
"installing a target. They are used only when the old "
"INSTALL_TARGETS command is used to install the target. Use the "
"INSTALL command instead.");
cm->DefineProperty
("SKIP_BUILD_RPATH", cmProperty::TARGET,
"Should rpaths be used for the build tree.",
"SKIP_BUILD_RPATH is a boolean specifying whether to skip automatic "
"generation of an rpath allowing the target to run from the "
"build tree. ");
cm->DefineProperty
("SOVERSION", cmProperty::TARGET,
"What version number is this target.",
"For shared libraries VERSION and SOVERSION can be used to specify "
"the build version and api version respectively. When building or "
"installing appropriate symlinks are created if the platform "
"supports symlinks and the linker supports so-names. "
"If only one of both is specified the missing is assumed to have "
"the same version number. "
"For shared libraries and executables on Windows the VERSION "
"attribute is parsed to extract a \"major.minor\" version number. "
"These numbers are used as the image version of the binary. ");
cm->DefineProperty
("STATIC_LIBRARY_FLAGS", cmProperty::TARGET,
"Extra flags to use when linking static libraries.",
"Extra flags to use when linking a static library.");
cm->DefineProperty
("SUFFIX", cmProperty::TARGET,
"What comes after the library name.",
"A target property that can be set to override the suffix "
"(such as \".so\") on a library name.");
cm->DefineProperty
("VERSION", cmProperty::TARGET,
"What version number is this target.",
"For shared libraries VERSION and SOVERSION can be used to specify "
"the build version and api version respectively. When building or "
"installing appropriate symlinks are created if the platform "
"supports symlinks and the linker supports so-names. "
"If only one of both is specified the missing is assumed to have "
"the same version number. "
"For executables VERSION can be used to specify the build version. "
"When building or installing appropriate symlinks are created if "
"the platform supports symlinks. "
"For shared libraries and executables on Windows the VERSION "
"attribute is parsed to extract a \"major.minor\" version number. "
"These numbers are used as the image version of the binary. ");
cm->DefineProperty
("WIN32_EXECUTABLE", cmProperty::TARGET,
"Used to specify Windows executable with a WinMain entry point.",
"This can be set to indicate that a target is a Windows executable "
"in contrast to a console application for example. This changes "
"how the executable will be linked.");
cm->DefineProperty
("ENABLE_EXPORTS", cmProperty::TARGET,
"Specify whether an executable exports symbols for loadable modules.",
"Normally an executable does not export any symbols because it is "
"the final program. It is possible for an executable to export "
"symbols to be used by loadable modules. When this property is "
"set to true CMake will allow other targets to \"link\" to the "
"executable with the TARGET_LINK_LIBRARIES command. "
"On all platforms a target-level dependency on the executable is "
"created for targets that link to it. "
"For non-DLL platforms the link rule is simply ignored since "
"the dynamic loader will automatically bind symbols when the "
"module is loaded. "
"For DLL platforms an import library will be created for the "
"exported symbols and then used for linking. "
"All Windows-based systems including Cygwin are DLL platforms.");
cm->DefineProperty
("GENERATOR_FILE_NAME", cmProperty::TARGET,
"Generator's file for this target.",
"An internal property used by some generators to record the name of "
"project or dsp file associated with this target.");
#if 0
cm->DefineProperty
("OBJECT_FILES", cmProperty::TARGET,
"Used to get the resulting list of object files that make up a "
"target.",
"This can be used to put object files from one library "
"into another library. It is a read only property. It "
"converts the source list for the target into a list of full "
"paths to object names that will be produced by the target.");
#endif
#define CM_TARGET_FILE_TYPES_DOC \
"There are three kinds of target files that may be built: " \
"archive, library, and runtime. " \
"Executables are always treated as runtime targets. " \
"Static libraries are always treated as archive targets. " \
"Module libraries are always treated as library targets. " \
"For non-DLL platforms shared libraries are treated as library " \
"targets. " \
"For DLL platforms the DLL part of a shared library is treated as " \
"a runtime target and the corresponding import library is treated as " \
"an archive target. " \
"All Windows-based systems including Cygwin are DLL platforms."
cm->DefineProperty
("ARCHIVE_OUTPUT_DIRECTORY", cmProperty::TARGET,
"Output directory in which to build ARCHIVE target files.",
"This property specifies the directory into which archive target files "
"should be built. "
CM_TARGET_FILE_TYPES_DOC " "
"This property is initialized by the value of the variable "
"CMAKE_ARCHIVE_OUTPUT_DIRECTORY if it is set when a target is created.");
cm->DefineProperty
("LIBRARY_OUTPUT_DIRECTORY", cmProperty::TARGET,
"Output directory in which to build LIBRARY target files.",
"This property specifies the directory into which library target files "
"should be built. "
CM_TARGET_FILE_TYPES_DOC " "
"This property is initialized by the value of the variable "
"CMAKE_LIBRARY_OUTPUT_DIRECTORY if it is set when a target is created.");
cm->DefineProperty
("RUNTIME_OUTPUT_DIRECTORY", cmProperty::TARGET,
"Output directory in which to build RUNTIME target files.",
"This property specifies the directory into which runtime target files "
"should be built. "
CM_TARGET_FILE_TYPES_DOC " "
"This property is initialized by the value of the variable "
"CMAKE_RUNTIME_OUTPUT_DIRECTORY if it is set when a target is created.");
// define some properties without documentation
cm->DefineProperty("DEBUG_OUTPUT_NAME", cmProperty::TARGET,0,0);
cm->DefineProperty("RELEASE_OUTPUT_NAME", cmProperty::TARGET,0,0);
cm->DefineProperty("LINK_FLAGS_DEBUG", cmProperty::TARGET,0,0);
}
void cmTarget::SetType(TargetType type, const char* name)
{
this->Name = name;
if(type == cmTarget::INSTALL_FILES ||
type == cmTarget::INSTALL_PROGRAMS ||
type == cmTarget::INSTALL_DIRECTORY)
{
abort();
}
// only add dependency information for library targets
this->TargetTypeValue = type;
if(this->TargetTypeValue >= STATIC_LIBRARY
&& this->TargetTypeValue <= MODULE_LIBRARY)
{
this->RecordDependencies = true;
}
else
{
this->RecordDependencies = false;
}
}
//----------------------------------------------------------------------------
void cmTarget::SetMakefile(cmMakefile* mf)
{
// Set our makefile.
this->Makefile = mf;
// set the cmake instance of the properties
this->Properties.SetCMakeInstance(mf->GetCMakeInstance());
// Check whether this is a DLL platform.
this->DLLPlatform = (this->Makefile->IsOn("WIN32") ||
this->Makefile->IsOn("CYGWIN") ||
this->Makefile->IsOn("MINGW"));
// Setup default property values.
this->SetPropertyDefault("INSTALL_NAME_DIR", "");
this->SetPropertyDefault("INSTALL_RPATH", "");
this->SetPropertyDefault("INSTALL_RPATH_USE_LINK_PATH", "OFF");
this->SetPropertyDefault("SKIP_BUILD_RPATH", "OFF");
this->SetPropertyDefault("BUILD_WITH_INSTALL_RPATH", "OFF");
this->SetPropertyDefault("ARCHIVE_OUTPUT_DIRECTORY", 0);
this->SetPropertyDefault("LIBRARY_OUTPUT_DIRECTORY", 0);
this->SetPropertyDefault("RUNTIME_OUTPUT_DIRECTORY", 0);
// Collect the set of configuration types.
std::vector<std::string> configNames;
if(const char* configurationTypes =
mf->GetDefinition("CMAKE_CONFIGURATION_TYPES"))
{
cmSystemTools::ExpandListArgument(configurationTypes, configNames);
}
else if(const char* buildType = mf->GetDefinition("CMAKE_BUILD_TYPE"))
{
if(*buildType)
{
configNames.push_back(buildType);
}
}
// Setup per-configuration property default values.
for(std::vector<std::string>::iterator ci = configNames.begin();
ci != configNames.end(); ++ci)
{
// Initialize per-configuration name postfix property from the
// variable only for non-executable targets. This preserves
// compatibility with previous CMake versions in which executables
// did not support this variable. Projects may still specify the
// property directly. TODO: Make this depend on backwards
// compatibility setting.
if(this->TargetTypeValue != cmTarget::EXECUTABLE)
{
std::string property = cmSystemTools::UpperCase(*ci);
property += "_POSTFIX";
this->SetPropertyDefault(property.c_str(), 0);
}
}
}
//----------------------------------------------------------------------------
class cmTargetTraceDependencies
{
public:
cmTargetTraceDependencies(cmTarget* target, const char* vsProjectFile);
void Trace();
private:
cmTarget* Target;
cmMakefile* Makefile;
cmGlobalGenerator* GlobalGenerator;
std::queue<cmStdString> DependencyQueue;
std::set<cmStdString> DependenciesQueued;
std::set<cmSourceFile*> TargetSources;
void QueueOnce(std::string const& name);
void QueueOnce(std::vector<std::string> const& names);
void QueueDependencies(cmSourceFile* sf);
bool IsUtility(std::string const& dep);
void CheckCustomCommand(cmCustomCommand const& cc);
void CheckCustomCommands(const std::vector<cmCustomCommand>& commands);
};
//----------------------------------------------------------------------------
cmTargetTraceDependencies
::cmTargetTraceDependencies(cmTarget* target, const char* vsProjectFile):
Target(target)
{
// Convenience.
this->Makefile = this->Target->GetMakefile();
this->GlobalGenerator =
this->Makefile->GetLocalGenerator()->GetGlobalGenerator();
// Queue all the source files already specified for the target.
std::vector<cmSourceFile*> const& sources = this->Target->GetSourceFiles();
for(std::vector<cmSourceFile*>::const_iterator si = sources.begin();
si != sources.end(); ++si)
{
// Queue the source file itself in case it is generated.
this->QueueOnce((*si)->GetFullPath());
// Queue the dependencies of the source file in case they are
// generated.
this->QueueDependencies(*si);
// Track the sources already known to the target.
this->TargetSources.insert(*si);
}
// Queue the VS project file to check dependencies on the rule to
// generate it.
if(vsProjectFile)
{
this->QueueOnce(vsProjectFile);
}
// Queue pre-build, pre-link, and post-build rule dependencies.
this->CheckCustomCommands(this->Target->GetPreBuildCommands());
this->CheckCustomCommands(this->Target->GetPreLinkCommands());
this->CheckCustomCommands(this->Target->GetPostBuildCommands());
}
//----------------------------------------------------------------------------
void cmTargetTraceDependencies::Trace()
{
// Process one dependency at a time until the queue is empty.
while(!this->DependencyQueue.empty())
{
// Get the next dependency in from queue.
std::string dep = this->DependencyQueue.front();
this->DependencyQueue.pop();
// Check if we know how to generate this dependency.
if(cmSourceFile* sf =
this->Makefile->GetSourceFileWithOutput(dep.c_str()))
{
// Queue dependencies needed to generate this file.
this->QueueDependencies(sf);
// Make sure this file is in the target.
if(this->TargetSources.insert(sf).second)
{
this->Target->AddSourceFile(sf);
}
}
}
}
//----------------------------------------------------------------------------
void cmTargetTraceDependencies::QueueOnce(std::string const& name)
{
if(this->DependenciesQueued.insert(name).second)
{
this->DependencyQueue.push(name);
}
}
//----------------------------------------------------------------------------
void
cmTargetTraceDependencies::QueueOnce(std::vector<std::string> const& names)
{
for(std::vector<std::string>::const_iterator i = names.begin();
i != names.end(); ++i)
{
this->QueueOnce(*i);
}
}
//----------------------------------------------------------------------------
bool cmTargetTraceDependencies::IsUtility(std::string const& dep)
{
// Dependencies on targets (utilities) are supposed to be named by
// just the target name. However for compatibility we support
// naming the output file generated by the target (assuming there is
// no output-name property which old code would not have set). In
// that case the target name will be the file basename of the
// dependency.
std::string util = cmSystemTools::GetFilenameName(dep);
if(cmSystemTools::GetFilenameLastExtension(util) == ".exe")
{
util = cmSystemTools::GetFilenameWithoutLastExtension(util);
}
// Check for a target with this name.
if(cmTarget* t =
this->GlobalGenerator->FindTarget(0, util.c_str(), true))
{
// If we find the target and the dep was given as a full path,
// then make sure it was not a full path to something else, and
// the fact that the name matched a target was just a coincidence.
if(cmSystemTools::FileIsFullPath(dep.c_str()))
{
// This is really only for compatibility so we do not need to
// worry about configuration names and output names.
std::string tLocation = t->GetLocation(0);
tLocation = cmSystemTools::GetFilenamePath(tLocation);
std::string depLocation = cmSystemTools::GetFilenamePath(dep);
depLocation = cmSystemTools::CollapseFullPath(depLocation.c_str());
tLocation = cmSystemTools::CollapseFullPath(tLocation.c_str());
if(depLocation == tLocation)
{
this->Target->AddUtility(util.c_str());
return true;
}
}
else
{
// The original name of the dependency was not a full path. It
// must name a target, so add the target-level dependency.
this->Target->AddUtility(util.c_str());
return true;
}
}
// The dependency does not name a target built in this project.
return false;
}
//----------------------------------------------------------------------------
void cmTargetTraceDependencies::QueueDependencies(cmSourceFile* sf)
{
// Queue dependency added explicitly by the user.
if(const char* additionalDeps = sf->GetProperty("OBJECT_DEPENDS"))
{
std::vector<std::string> objDeps;
cmSystemTools::ExpandListArgument(additionalDeps, objDeps);
this->QueueOnce(objDeps);
}
// Queue dependencies added programatically by commands.
this->QueueOnce(sf->GetDepends());
// Queue custom command dependencies.
if(cmCustomCommand const* cc = sf->GetCustomCommand())
{
this->CheckCustomCommand(*cc);
}
}
//----------------------------------------------------------------------------
void
cmTargetTraceDependencies
::CheckCustomCommand(cmCustomCommand const& cc)
{
// Transform command names that reference targets built in this
// project to corresponding target-level dependencies.
for(cmCustomCommandLines::const_iterator cit = cc.GetCommandLines().begin();
cit != cc.GetCommandLines().end(); ++cit)
{
std::string const& command = *cit->begin();
// Look for a non-imported target with this name.
if(cmTarget* t =
this->GlobalGenerator->FindTarget(0, command.c_str(), false))
{
if(t->GetType() == cmTarget::EXECUTABLE)
{
// The command refers to an executable target built in
// this project. Add the target-level dependency to make
// sure the executable is up to date before this custom
// command possibly runs.
this->Target->AddUtility(command.c_str());
}
}
}
// Queue the custom command dependencies.
std::vector<std::string> const& depends = cc.GetDepends();
for(std::vector<std::string>::const_iterator di = depends.begin();
di != depends.end(); ++di)
{
std::string const& dep = *di;
if(!this->IsUtility(dep))
{
// The dependency does not name a target and may be a file we
// know how to generate. Queue it.
this->QueueOnce(dep);
}
}
}
//----------------------------------------------------------------------------
void
cmTargetTraceDependencies
::CheckCustomCommands(const std::vector<cmCustomCommand>& commands)
{
for(std::vector<cmCustomCommand>::const_iterator cli = commands.begin();
cli != commands.end(); ++cli)
{
this->CheckCustomCommand(*cli);
}
}
//----------------------------------------------------------------------------
void cmTarget::TraceDependencies(const char* vsProjectFile)
{
// Use a helper object to trace the dependencies.
cmTargetTraceDependencies tracer(this, vsProjectFile);
tracer.Trace();
}
//----------------------------------------------------------------------------
void cmTarget::AddSources(std::vector<std::string> const& srcs)
{
for(std::vector<std::string>::const_iterator i = srcs.begin();
i != srcs.end(); ++i)
{
this->AddSource(i->c_str());
}
}
cmSourceFile* cmTarget::AddSource(const char* s)
{
std::string src = s;
// For backwards compatibility replace varibles in source names.
// This should eventually be removed.
this->Makefile->ExpandVariablesInString(src);
cmSourceFile* sf = this->Makefile->GetOrCreateSource(src.c_str());
this->AddSourceFile(sf);
return sf;
}
void cmTarget::MergeLinkLibraries( cmMakefile& mf,
const char *selfname,
const LinkLibraryVectorType& libs )
{
// Only add on libraries we haven't added on before.
// Assumption: the global link libraries could only grow, never shrink
LinkLibraryVectorType::const_iterator i = libs.begin();
i += this->PrevLinkedLibraries.size();
for( ; i != libs.end(); ++i )
{
// We call this so that the dependencies get written to the cache
this->AddLinkLibrary( mf, selfname, i->first.c_str(), i->second );
}
this->PrevLinkedLibraries = libs;
}
//----------------------------------------------------------------------------
void cmTarget::AddLinkDirectory(const char* d)
{
// Make sure we don't add unnecessary search directories.
if(std::find(this->ExplicitLinkDirectories.begin(),
this->ExplicitLinkDirectories.end(), d)
== this->ExplicitLinkDirectories.end() )
{
this->ExplicitLinkDirectories.push_back( d );
this->LinkDirectoriesComputed = false;
}
}
//----------------------------------------------------------------------------
const std::vector<std::string>& cmTarget::GetLinkDirectories()
{
// Make sure all library dependencies have been analyzed.
if(!this->LinkLibrariesAnalyzed && !this->LinkLibraries.empty())
{
cmSystemTools::Error(
"cmTarget::GetLinkDirectories called before "
"cmTarget::AnalyzeLibDependencies on target ",
this->Name.c_str());
}
// Make sure the complete set of link directories has been computed.
if(!this->LinkDirectoriesComputed)
{
// Check whether we should use an import library for linking a target.
bool implib =
this->Makefile->GetDefinition("CMAKE_IMPORT_LIBRARY_SUFFIX") != 0;
// Compute the full set of link directories including the
// locations of targets that have been linked in. Start with the
// link directories given explicitly.
this->LinkDirectories = this->ExplicitLinkDirectories;
for(LinkLibraryVectorType::iterator ll = this->LinkLibraries.begin();
ll != this->LinkLibraries.end(); ++ll)
{
// If this library is a CMake target then add its location as a
// link directory.
std::string lib = ll->first;
cmTarget* tgt = 0;
if(this->Makefile && this->Makefile->GetLocalGenerator() &&
this->Makefile->GetLocalGenerator()->GetGlobalGenerator())
{
tgt = (this->Makefile->GetLocalGenerator()->GetGlobalGenerator()
->FindTarget(0, lib.c_str(), false));
}
if(tgt)
{
// Add the directory only if it is not already present. This
// is an N^2 algorithm for adding the directories, but N
// should not get very big.
const char* libpath = tgt->GetDirectory(0, implib);
if(std::find(this->LinkDirectories.begin(),
this->LinkDirectories.end(),
libpath) == this->LinkDirectories.end())
{
this->LinkDirectories.push_back(libpath);
}
}
}
// The complete set of link directories has now been computed.
this->LinkDirectoriesComputed = true;
}
// Return the complete set of link directories.
return this->LinkDirectories;
}
void cmTarget::ClearDependencyInformation( cmMakefile& mf,
const char* target )
{
// Clear the dependencies. The cache variable must exist iff we are
// recording dependency information for this target.
std::string depname = target;
depname += "_LIB_DEPENDS";
if (this->RecordDependencies)
{
mf.AddCacheDefinition(depname.c_str(), "",
"Dependencies for target", cmCacheManager::STATIC);
}
else
{
if (mf.GetDefinition( depname.c_str() ))
{
std::string message = "Target ";
message += target;
message += " has dependency information when it shouldn't.\n";
message += "Your cache is probably stale. Please remove the entry\n ";
message += depname;
message += "\nfrom the cache.";
cmSystemTools::Error( message.c_str() );
}
}
}
void cmTarget::AddLinkLibrary(const std::string& lib,
LinkLibraryType llt)
{
this->AddFramework(lib.c_str(), llt);
cmTarget::LibraryID tmp;
tmp.first = lib;
tmp.second = llt;
this->LinkLibraries.push_back(tmp);
}
bool cmTarget::AddFramework(const std::string& libname, LinkLibraryType llt)
{
(void)llt; // TODO: What is this?
if(cmSystemTools::IsPathToFramework(libname.c_str()))
{
std::string frameworkDir = libname;
frameworkDir += "/../";
frameworkDir = cmSystemTools::CollapseFullPath(frameworkDir.c_str());
std::vector<std::string>::iterator i =
std::find(this->Frameworks.begin(),
this->Frameworks.end(), frameworkDir);
if(i == this->Frameworks.end())
{
this->Frameworks.push_back(frameworkDir);
}
return true;
}
return false;
}
void cmTarget::AddLinkLibrary(cmMakefile& mf,
const char *target, const char* lib,
LinkLibraryType llt)
{
// Never add a self dependency, even if the user asks for it.
if(strcmp( target, lib ) == 0)
{
return;
}
this->AddFramework(lib, llt);
cmTarget::LibraryID tmp;
tmp.first = lib;
tmp.second = llt;
this->LinkLibraries.push_back( tmp );
// Add the explicit dependency information for this target. This is
// simply a set of libraries separated by ";". There should always
// be a trailing ";". These library names are not canonical, in that
// they may be "-framework x", "-ly", "/path/libz.a", etc.
// We shouldn't remove duplicates here because external libraries
// may be purposefully duplicated to handle recursive dependencies,
// and we removing one instance will break the link line. Duplicates
// will be appropriately eliminated at emit time.
if(this->RecordDependencies)
{
std::string targetEntry = target;
targetEntry += "_LIB_DEPENDS";
std::string dependencies;
const char* old_val = mf.GetDefinition( targetEntry.c_str() );
if( old_val )
{
dependencies += old_val;
}
switch (llt)
{
case cmTarget::GENERAL:
dependencies += "general";
break;
case cmTarget::DEBUG:
dependencies += "debug";
break;
case cmTarget::OPTIMIZED:
dependencies += "optimized";
break;
}
dependencies += ";";
dependencies += lib;
dependencies += ";";
mf.AddCacheDefinition( targetEntry.c_str(), dependencies.c_str(),
"Dependencies for the target",
cmCacheManager::STATIC );
}
}
void
cmTarget::AnalyzeLibDependencies( const cmMakefile& mf )
{
// There are two key parts of the dependency analysis: (1)
// determining the libraries in the link line, and (2) constructing
// the dependency graph for those libraries.
//
// The latter is done using the cache entries that record the
// dependencies of each library.
//
// The former is a more thorny issue, since it is not clear how to
// determine if two libraries listed on the link line refer to the a
// single library or not. For example, consider the link "libraries"
// /usr/lib/libtiff.so -ltiff
// Is this one library or two? The solution implemented here is the
// simplest (and probably the only practical) one: two libraries are
// the same if their "link strings" are identical. Thus, the two
// libraries above are considered distinct. This also means that for
// dependency analysis to be effective, the CMake user must specify
// libraries build by his project without using any linker flags or
// file extensions. That is,
// LINK_LIBRARIES( One Two )
// instead of
// LINK_LIBRARIES( -lOne ${binarypath}/libTwo.a )
// The former is probably what most users would do, but it never
// hurts to document the assumptions. :-) Therefore, in the analysis
// code, the "canonical name" of a library is simply its name as
// given to a LINK_LIBRARIES command.
//
// Also, we will leave the original link line intact; we will just add any
// dependencies that were missing.
//
// There is a problem with recursive external libraries
// (i.e. libraries with no dependency information that are
// recursively dependent). We must make sure that the we emit one of
// the libraries twice to satisfy the recursion, but we shouldn't
// emit it more times than necessary. In particular, we must make
// sure that handling this improbable case doesn't cost us when
// dealing with the common case of non-recursive libraries. The
// solution is to assume that the recursion is satisfied at one node
// of the dependency tree. To illustrate, assume libA and libB are
// extrenal and mutually dependent. Suppose libX depends on
// libA, and libY on libA and libX. Then
// TARGET_LINK_LIBRARIES( Y X A B A )
// TARGET_LINK_LIBRARIES( X A B A )
// TARGET_LINK_LIBRARIES( Exec Y )
// would result in "-lY -lX -lA -lB -lA". This is the correct way to
// specify the dependencies, since the mutual dependency of A and B
// is resolved *every time libA is specified*.
//
// Something like
// TARGET_LINK_LIBRARIES( Y X A B A )
// TARGET_LINK_LIBRARIES( X A B )
// TARGET_LINK_LIBRARIES( Exec Y )
// would result in "-lY -lX -lA -lB", and the mutual dependency
// information is lost. This is because in some case (Y), the mutual
// dependency of A and B is listed, while in another other case (X),
// it is not. Depending on which line actually emits A, the mutual
// dependency may or may not be on the final link line. We can't
// handle this pathalogical case cleanly without emitting extra
// libraries for the normal cases. Besides, the dependency
// information for X is wrong anyway: if we build an executable
// depending on X alone, we would not have the mutual dependency on
// A and B resolved.
//
// IMPROVEMENTS:
// -- The current algorithm will not always pick the "optimal" link line
// when recursive dependencies are present. It will instead break the
// cycles at an aribtrary point. The majority of projects won't have
// cyclic dependencies, so this is probably not a big deal. Note that
// the link line is always correct, just not necessary optimal.
{
// Expand variables in link library names. This is for backwards
// compatibility with very early CMake versions and should
// eventually be removed. This code was moved here from the end of
// old source list processing code which was called just before this
// method.
for(LinkLibraryVectorType::iterator p = this->LinkLibraries.begin();
p != this->LinkLibraries.end(); ++p)
{
this->Makefile->ExpandVariablesInString(p->first, true, true);
}
}
typedef std::vector< std::string > LinkLine;
// The dependency map.
DependencyMap dep_map;
if ( this->OriginalLinkLibraries.size() == 0 )
{
this->OriginalLinkLibraries = this->LinkLibraries;
}
// 1. Build the dependency graph
//
for(LinkLibraryVectorType::reverse_iterator lib
= this->LinkLibraries.rbegin();
lib != this->LinkLibraries.rend(); ++lib)
{
this->GatherDependencies( mf, *lib, dep_map);
}
// 2. Remove any dependencies that are already satisfied in the original
// link line.
//
for(LinkLibraryVectorType::iterator lib = this->LinkLibraries.begin();
lib != this->LinkLibraries.end(); ++lib)
{
for( LinkLibraryVectorType::iterator lib2 = lib;
lib2 != this->LinkLibraries.end(); ++lib2)
{
this->DeleteDependency( dep_map, *lib, *lib2);
}
}
// 3. Create the new link line by simply emitting any dependencies that are
// missing. Start from the back and keep adding.
//
std::set<DependencyMap::key_type> done, visited;
std::vector<DependencyMap::key_type> newLinkLibraries;
for(LinkLibraryVectorType::reverse_iterator lib =
this->LinkLibraries.rbegin();
lib != this->LinkLibraries.rend(); ++lib)
{
// skip zero size library entries, this may happen
// if a variable expands to nothing.
if (lib->first.size() != 0)
{
this->Emit( *lib, dep_map, done, visited, newLinkLibraries );
}
}
// 4. Add the new libraries to the link line.
//
for( std::vector<DependencyMap::key_type>::reverse_iterator k =
newLinkLibraries.rbegin();
k != newLinkLibraries.rend(); ++k )
{
// get the llt from the dep_map
this->LinkLibraries.push_back( std::make_pair(k->first,k->second) );
}
this->LinkLibrariesAnalyzed = true;
}
void cmTarget::InsertDependency( DependencyMap& depMap,
const LibraryID& lib,
const LibraryID& dep)
{
depMap[lib].push_back(dep);
}
void cmTarget::DeleteDependency( DependencyMap& depMap,
const LibraryID& lib,
const LibraryID& dep)
{
// Make sure there is an entry in the map for lib. If so, delete all
// dependencies to dep. There may be repeated entries because of
// external libraries that are specified multiple times.
DependencyMap::iterator map_itr = depMap.find( lib );
if( map_itr != depMap.end() )
{
DependencyList& depList = map_itr->second;
DependencyList::iterator itr;
while( (itr = std::find(depList.begin(), depList.end(), dep)) !=
depList.end() )
{
depList.erase( itr );
}
}
}
void cmTarget::Emit(const LibraryID lib,
const DependencyMap& dep_map,
std::set<LibraryID>& emitted,
std::set<LibraryID>& visited,
DependencyList& link_line )
{
// It's already been emitted
if( emitted.find(lib) != emitted.end() )
{
return;
}
// Emit the dependencies only if this library node hasn't been
// visited before. If it has, then we have a cycle. The recursion
// that got us here should take care of everything.
if( visited.insert(lib).second )
{
if( dep_map.find(lib) != dep_map.end() ) // does it have dependencies?
{
const DependencyList& dep_on = dep_map.find( lib )->second;
DependencyList::const_reverse_iterator i;
// To cater for recursive external libraries, we must emit
// duplicates on this link line *unless* they were emitted by
// some other node, in which case we assume that the recursion
// was resolved then. We making the simplifying assumption that
// any duplicates on a single link line are on purpose, and must
// be preserved.
// This variable will keep track of the libraries that were
// emitted directory from the current node, and not from a
// recursive call. This way, if we come across a library that
// has already been emitted, we repeat it iff it has been
// emitted here.
std::set<DependencyMap::key_type> emitted_here;
for( i = dep_on.rbegin(); i != dep_on.rend(); ++i )
{
if( emitted_here.find(*i) != emitted_here.end() )
{
// a repeat. Must emit.
emitted.insert(*i);
link_line.push_back( *i );
}
else
{
// Emit only if no-one else has
if( emitted.find(*i) == emitted.end() )
{
// emit dependencies
Emit( *i, dep_map, emitted, visited, link_line );
// emit self
emitted.insert(*i);
emitted_here.insert(*i);
link_line.push_back( *i );
}
}
}
}
}
}
void cmTarget::GatherDependencies( const cmMakefile& mf,
const LibraryID& lib,
DependencyMap& dep_map)
{
// If the library is already in the dependency map, then it has
// already been fully processed.
if( dep_map.find(lib) != dep_map.end() )
{
return;
}
const char* deps = mf.GetDefinition( (lib.first+"_LIB_DEPENDS").c_str() );
if( deps && strcmp(deps,"") != 0 )
{
// Make sure this library is in the map, even if it has an empty
// set of dependencies. This distinguishes the case of explicitly
// no dependencies with that of unspecified dependencies.
dep_map[lib];
// Parse the dependency information, which is a set of
// type, library pairs separated by ";". There is always a trailing ";".
cmTarget::LinkLibraryType llt = cmTarget::GENERAL;
std::string depline = deps;
std::string::size_type start = 0;
std::string::size_type end;
end = depline.find( ";", start );
while( end != std::string::npos )
{
std::string l = depline.substr( start, end-start );
if( l.size() != 0 )
{
if (l == "debug")
{
llt = cmTarget::DEBUG;
}
else if (l == "optimized")
{
llt = cmTarget::OPTIMIZED;
}
else if (l == "general")
{
llt = cmTarget::GENERAL;
}
else
{
LibraryID lib2(l,llt);
this->InsertDependency( dep_map, lib, lib2);
this->GatherDependencies( mf, lib2, dep_map);
llt = cmTarget::GENERAL;
}
}
start = end+1; // skip the ;
end = depline.find( ";", start );
}
// cannot depend on itself
this->DeleteDependency( dep_map, lib, lib);
}
}
void cmTarget::SetProperty(const char* prop, const char* value)
{
if (!prop)
{
return;
}
if (!value)
{
value = "NOTFOUND";
}
this->Properties.SetProperty(prop, value, cmProperty::TARGET);
}
void cmTarget::MarkAsImported()
{
this->IsImportedTarget = true;
}
const char* cmTarget::GetDirectory(const char* config, bool implib)
{
if (this->IsImported())
{
return this->ImportedGetDirectory(config, implib);
}
else
{
return this->NormalGetDirectory(config, implib);
}
}
const char* cmTarget::ImportedGetDirectory(const char* config, bool)
{
const char* location=this->GetLocation(config);
std::string directory=cmSystemTools::GetFilenamePath(location);
return directory.c_str();
}
const char* cmTarget::NormalGetDirectory(const char* config, bool implib)
{
if(config && *config)
{
this->Directory = this->GetOutputDir(implib);
// Add the configuration's subdirectory.
this->Makefile->GetLocalGenerator()->GetGlobalGenerator()->
AppendDirectoryForConfig("/", config, "", this->Directory);
return this->Directory.c_str();
}
else
{
return this->GetOutputDir(implib);
}
}
const char* cmTarget::GetLocation(const char* config)
{
if (this->IsImported())
{
return this->ImportedGetLocation(config);
}
else
{
return this->NormalGetLocation(config);
}
}
const char* cmTarget::ImportedGetLocation(const char* config)
{
if ((config) && (strlen(config)))
{
std::string propertyName=config;
propertyName+="_LOCATION";
const char* configLocation=this->GetProperty(propertyName.c_str());
if ((configLocation) && (strlen(configLocation)))
{
return configLocation;
}
}
return this->GetProperty("LOCATION");
}
const char* cmTarget::NormalGetLocation(const char* config)
{
this->Location = this->GetDirectory();
if(!this->Location.empty())
{
this->Location += "/";
}
const char* cfgid = this->Makefile->GetDefinition("CMAKE_CFG_INTDIR");
if(cfgid && strcmp(cfgid, ".") != 0)
{
this->Location += cfgid;
this->Location += "/";
}
this->Location += this->GetFullName(config, false);
return this->Location.c_str();
}
//----------------------------------------------------------------------------
void cmTarget::GetTargetVersion(int& major, int& minor)
{
// Set the default values.
major = 0;
minor = 0;
// Look for a VERSION property.
if(const char* version = this->GetProperty("VERSION"))
{
// Try to parse the version number and store the results that were
// successfully parsed.
int parsed_major;
int parsed_minor;
switch(sscanf(version, "%d.%d", &parsed_major, &parsed_minor))
{
case 2: minor = parsed_minor; // no break!
case 1: major = parsed_major; // no break!
default: break;
}
}
}
const char *cmTarget::GetProperty(const char* prop)
{
return this->GetProperty(prop, cmProperty::TARGET);
}
void cmTarget::ComputeObjectFiles()
{
if (this->IsImported())
{
return;
}
#if 0
std::vector<std::string> dirs;
this->Makefile->GetLocalGenerator()->
GetTargetObjectFileDirectories(this,
dirs);
std::string objectFiles;
std::string objExtensionLookup1 = "CMAKE_";
std::string objExtensionLookup2 = "_OUTPUT_EXTENSION";
for(std::vector<std::string>::iterator d = dirs.begin();
d != dirs.end(); ++d)
{
for(std::vector<cmSourceFile*>::iterator s = this->SourceFiles.begin();
s != this->SourceFiles.end(); ++s)
{
cmSourceFile* sf = *s;
if(const char* lang = sf->GetLanguage())
{
std::string lookupObj = objExtensionLookup1 + lang;
lookupObj += objExtensionLookup2;
const char* obj = this->Makefile->GetDefinition(lookupObj.c_str());
if(obj)
{
if(objectFiles.size())
{
objectFiles += ";";
}
std::string objFile = *d;
objFile += "/";
objFile += this->Makefile->GetLocalGenerator()->
GetSourceObjectName(*sf);
objFile += obj;
objectFiles += objFile;
}
}
}
}
this->SetProperty("OBJECT_FILES", objectFiles.c_str());
#endif
}
const char *cmTarget::GetProperty(const char* prop,
cmProperty::ScopeType scope)
{
if(!prop)
{
return 0;
}
// don't use GetLocation() for imported targets, because there this
// calls GetProperty() to get the location...
if (!this->IsImported())
{
// watch for special "computed" properties that are dependent on other
// properties or variables, always recompute them
if (!strcmp(prop,"LOCATION"))
{
// Set the LOCATION property of the target. Note that this cannot take
// into account the per-configuration name of the target because the
// configuration type may not be known at CMake time. We should
// deprecate this feature and instead support transforming an executable
// target name given as the command part of custom commands into the
// proper path at build time. Alternatively we could put environment
// variable settings in all custom commands that hold the name of the
// target for each configuration and then give a reference to the
// variable in the location.
this->SetProperty("LOCATION", this->GetLocation(0));
}
// Per-configuration location can be computed.
int len = static_cast<int>(strlen(prop));
if(len > 9 && strcmp(prop+len-9, "_LOCATION") == 0)
{
std::string configName(prop, len-9);
this->SetProperty(prop, this->GetLocation(configName.c_str()));
}
if(strcmp(prop, "OBJECT_FILES") == 0)
{
this->ComputeObjectFiles();
}
}
if (strcmp(prop,"IMPORTED") == 0)
{
return this->IsImported()?"TRUE":"FALSE";
}
// the type property returns what type the target is
if (!strcmp(prop,"TYPE"))
{
switch( this->GetType() )
{
case cmTarget::STATIC_LIBRARY:
return "STATIC_LIBRARY";
// break; /* unreachable */
case cmTarget::MODULE_LIBRARY:
return "MODULE_LIBRARY";
// break; /* unreachable */
case cmTarget::SHARED_LIBRARY:
return "SHARED_LIBRARY";
// break; /* unreachable */
case cmTarget::EXECUTABLE:
return "EXECUTABLE";
// break; /* unreachable */
case cmTarget::UTILITY:
return "UTILITY";
// break; /* unreachable */
case cmTarget::GLOBAL_TARGET:
return "GLOBAL_TARGET";
// break; /* unreachable */
case cmTarget::INSTALL_FILES:
return "INSTALL_FILES";
// break; /* unreachable */
case cmTarget::INSTALL_PROGRAMS:
return "INSTALL_PROGRAMS";
// break; /* unreachable */
case cmTarget::INSTALL_DIRECTORY:
return "INSTALL_DIRECTORY";
// break; /* unreachable */
}
return 0;
}
bool chain = false;
const char *retVal =
this->Properties.GetPropertyValue(prop, scope, chain);
if (chain)
{
return this->Makefile->GetProperty(prop,scope);
}
return retVal;
}
bool cmTarget::GetPropertyAsBool(const char* prop)
{
return cmSystemTools::IsOn(this->GetProperty(prop));
}
const char* cmTarget::GetLinkerLanguage(cmGlobalGenerator* gg)
{
if(this->GetProperty("HAS_CXX"))
{
const_cast<cmTarget*>(this)->SetProperty("LINKER_LANGUAGE", "CXX");
}
const char* linkerLang = this->GetProperty("LINKER_LANGUAGE");
if(linkerLang)
{
return linkerLang;
}
std::set<cmStdString> languages;
for(std::vector<cmSourceFile*>::const_iterator i
= this->SourceFiles.begin();
i != this->SourceFiles.end(); ++i)
{
if(const char* lang = (*i)->GetLanguage())
{
languages.insert(lang);
}
}
if(languages.size() == 0)
{
return 0;
}
if(languages.size() == 1)
{
const_cast<cmTarget*>(this)->SetProperty("LINKER_LANGUAGE",
languages.begin()->c_str());
return this->GetProperty("LINKER_LANGUAGE");
}
const char* prefLang = 0;
for(std::set<cmStdString>::const_iterator s = languages.begin();
s != languages.end(); ++s)
{
const char* lpref = gg->GetLinkerPreference(s->c_str());
if(lpref[0] == 'P')
{
if(prefLang && !(*s == prefLang))
{
std::string m = "Error Target: ";
m += this->Name + " Contains more than one Prefered language: ";
m += *s;
m += " and ";
m += prefLang;
m += "\nYou must set the LINKER_LANGUAGE property for this target.";
cmSystemTools::Error(m.c_str());
}
else
{
prefLang = s->c_str();
}
}
}
if(!prefLang)
{
prefLang = languages.begin()->c_str();
}
const_cast<cmTarget*>(this)->SetProperty("LINKER_LANGUAGE", prefLang);
return this->GetProperty("LINKER_LANGUAGE");
}
const char* cmTarget::GetCreateRuleVariable()
{
switch(this->GetType())
{
case cmTarget::STATIC_LIBRARY:
return "_CREATE_STATIC_LIBRARY";
case cmTarget::SHARED_LIBRARY:
return "_CREATE_SHARED_LIBRARY";
case cmTarget::MODULE_LIBRARY:
return "_CREATE_SHARED_MODULE";
case cmTarget::EXECUTABLE:
return "_LINK_EXECUTABLE";
case cmTarget::UTILITY:
case cmTarget::GLOBAL_TARGET:
case cmTarget::INSTALL_FILES:
case cmTarget::INSTALL_PROGRAMS:
case cmTarget::INSTALL_DIRECTORY:
break;
}
return "";
}
const char* cmTarget::GetSuffixVariableInternal(TargetType type,
bool implib)
{
switch(type)
{
case cmTarget::STATIC_LIBRARY:
return "CMAKE_STATIC_LIBRARY_SUFFIX";
case cmTarget::SHARED_LIBRARY:
return (implib
? "CMAKE_IMPORT_LIBRARY_SUFFIX"
: "CMAKE_SHARED_LIBRARY_SUFFIX");
case cmTarget::MODULE_LIBRARY:
return (implib
? "CMAKE_IMPORT_LIBRARY_SUFFIX"
: "CMAKE_SHARED_MODULE_SUFFIX");
case cmTarget::EXECUTABLE:
return (implib
? "CMAKE_IMPORT_LIBRARY_SUFFIX"
: "CMAKE_EXECUTABLE_SUFFIX");
case cmTarget::UTILITY:
case cmTarget::GLOBAL_TARGET:
case cmTarget::INSTALL_FILES:
case cmTarget::INSTALL_PROGRAMS:
case cmTarget::INSTALL_DIRECTORY:
break;
}
return "";
}
const char* cmTarget::GetPrefixVariableInternal(TargetType type,
bool implib)
{
switch(type)
{
case cmTarget::STATIC_LIBRARY:
return "CMAKE_STATIC_LIBRARY_PREFIX";
case cmTarget::SHARED_LIBRARY:
return (implib
? "CMAKE_IMPORT_LIBRARY_PREFIX"
: "CMAKE_SHARED_LIBRARY_PREFIX");
case cmTarget::MODULE_LIBRARY:
return (implib
? "CMAKE_IMPORT_LIBRARY_PREFIX"
: "CMAKE_SHARED_MODULE_PREFIX");
case cmTarget::EXECUTABLE:
return (implib? "CMAKE_IMPORT_LIBRARY_PREFIX" : "");
case cmTarget::UTILITY:
case cmTarget::GLOBAL_TARGET:
case cmTarget::INSTALL_FILES:
case cmTarget::INSTALL_PROGRAMS:
case cmTarget::INSTALL_DIRECTORY:
break;
}
return "";
}
//----------------------------------------------------------------------------
std::string cmTarget::GetPDBName(const char* config)
{
std::string prefix;
std::string base;
std::string suffix;
this->GetFullNameInternal(this->GetType(), config, false,
prefix, base, suffix);
return prefix+base+".pdb";
}
//----------------------------------------------------------------------------
std::string cmTarget::GetFullName(const char* config, bool implib)
{
return this->GetFullNameInternal(this->GetType(), config, implib);
}
//----------------------------------------------------------------------------
void cmTarget::GetFullName(std::string& prefix, std::string& base,
std::string& suffix, const char* config,
bool implib)
{
this->GetFullNameInternal(this->GetType(), config, implib,
prefix, base, suffix);
}
//----------------------------------------------------------------------------
std::string cmTarget::GetFullPath(const char* config, bool implib)
{
// Start with the output directory for the target.
std::string fpath = this->GetDirectory(config, implib);
fpath += "/";
// Add the full name of the target.
fpath += this->GetFullName(config, implib);
return fpath;
}
//----------------------------------------------------------------------------
std::string cmTarget::GetFullNameInternal(TargetType type, const char* config,
bool implib)
{
std::string prefix;
std::string base;
std::string suffix;
this->GetFullNameInternal(type, config, implib, prefix, base, suffix);
return prefix+base+suffix;
}
void cmTarget::GetFullNameInternal(TargetType type,
const char* config,
bool implib,
std::string& outPrefix,
std::string& outBase,
std::string& outSuffix)
{
if (this->IsImported())
{
this->ImportedGetFullNameInternal(type, config, implib,
outPrefix, outBase, outSuffix);
}
else
{
this->NormalGetFullNameInternal(type, config, implib,
outPrefix, outBase, outSuffix);
}
}
void cmTarget::ImportedGetFullNameInternal(TargetType ,
const char* config,
bool ,
std::string& outPrefix,
std::string& outBase,
std::string& outSuffix)
{
// find the basename, suffix and prefix from getLocation()
// implib ?
std::string location=this->GetLocation(config);
outBase=cmSystemTools::GetFilenameWithoutExtension(location);
outSuffix = cmSystemTools::GetFilenameExtension(location);
outPrefix = "";
}
//----------------------------------------------------------------------------
void cmTarget::NormalGetFullNameInternal(TargetType type,
const char* config,
bool implib,
std::string& outPrefix,
std::string& outBase,
std::string& outSuffix)
{
// Use just the target name for non-main target types.
if(type != cmTarget::STATIC_LIBRARY &&
type != cmTarget::SHARED_LIBRARY &&
type != cmTarget::MODULE_LIBRARY &&
type != cmTarget::EXECUTABLE)
{
outPrefix = "";
outBase = this->GetName();
outSuffix = "";
return;
}
// Return an empty name for the import library if this platform
// does not support import libraries.
if(implib &&
!this->Makefile->GetDefinition("CMAKE_IMPORT_LIBRARY_SUFFIX"))
{
outPrefix = "";
outBase = "";
outSuffix = "";
return;
}
// The implib option is only allowed for shared libraries, module
// libraries, and executables.
if(type != cmTarget::SHARED_LIBRARY &&
type != cmTarget::MODULE_LIBRARY &&
type != cmTarget::EXECUTABLE)
{
implib = false;
}
// Compute the full name for main target types.
const char* targetPrefix = (implib
? this->GetProperty("IMPORT_PREFIX")
: this->GetProperty("PREFIX"));
const char* targetSuffix = (implib
? this->GetProperty("IMPORT_SUFFIX")
: this->GetProperty("SUFFIX"));
const char* configPostfix = 0;
if(config && *config)
{
std::string configProp = cmSystemTools::UpperCase(config);
configProp += "_POSTFIX";
configPostfix = this->GetProperty(configProp.c_str());
}
const char* prefixVar = this->GetPrefixVariableInternal(type, implib);
const char* suffixVar = this->GetSuffixVariableInternal(type, implib);
const char* ll =
this->GetLinkerLanguage(
this->Makefile->GetLocalGenerator()->GetGlobalGenerator());
// first try language specific suffix
if(ll)
{
if(!targetSuffix && suffixVar && *suffixVar)
{
std::string langSuff = suffixVar + std::string("_") + ll;
targetSuffix = this->Makefile->GetDefinition(langSuff.c_str());
}
if(!targetPrefix && prefixVar && *prefixVar)
{
std::string langPrefix = prefixVar + std::string("_") + ll;
targetPrefix = this->Makefile->GetDefinition(langPrefix.c_str());
}
}
// if there is no prefix on the target use the cmake definition
if(!targetPrefix && prefixVar)
{
targetPrefix = this->Makefile->GetSafeDefinition(prefixVar);
}
// if there is no suffix on the target use the cmake definition
if(!targetSuffix && suffixVar)
{
targetSuffix = this->Makefile->GetSafeDefinition(suffixVar);
}
#if defined(__APPLE__)
// frameworks do not have a prefix or a suffix
if(this->GetPropertyAsBool("FRAMEWORK"))
{
targetPrefix = 0;
targetSuffix = 0;
}
#endif
// Begin the final name with the prefix.
outPrefix = targetPrefix?targetPrefix:"";
// Append the target name or property-specified name.
const char* outName = 0;
if(config && *config)
{
std::string configProp = cmSystemTools::UpperCase(config);
configProp += "_OUTPUT_NAME";
outName = this->GetProperty(configProp.c_str());
}
if(!outName)
{
outName = this->GetProperty("OUTPUT_NAME");
}
if(outName)
{
outBase = outName;
}
else
{
outBase = this->GetName();
}
// Append the per-configuration postfix.
outBase += configPostfix?configPostfix:"";
// Name shared libraries with their version number on some platforms.
if(const char* version = this->GetProperty("VERSION"))
{
if(type == cmTarget::SHARED_LIBRARY && !implib &&
this->Makefile->IsOn("CMAKE_SHARED_LIBRARY_NAME_WITH_VERSION"))
{
outBase += "-";
outBase += version;
}
}
// Append the suffix.
outSuffix = targetSuffix?targetSuffix:"";
}
void cmTarget::GetLibraryNames(std::string& name,
std::string& soName,
std::string& realName,
std::string& impName,
std::string& pdbName,
const char* config)
{
// Get the names based on the real type of the library.
this->GetLibraryNamesInternal(name, soName, realName, impName, pdbName,
this->GetType(), config);
}
void cmTarget::GetLibraryCleanNames(std::string& staticName,
std::string& sharedName,
std::string& sharedSOName,
std::string& sharedRealName,
std::string& importName,
std::string& pdbName,
const char* config)
{
// Get the name as if this were a static library.
std::string soName;
std::string realName;
std::string impName;
this->GetLibraryNamesInternal(staticName, soName, realName, impName,
pdbName, cmTarget::STATIC_LIBRARY, config);
// Get the names as if this were a shared library.
if(this->GetType() == cmTarget::STATIC_LIBRARY)
{
// Since the real type is static then the user either specified
// STATIC or did not specify a type. In the former case the
// shared library will never be present. In the latter case the
// type will never be MODULE. Either way the only names that
// might have to be cleaned are the shared library names.
this->GetLibraryNamesInternal(sharedName, sharedSOName, sharedRealName,
importName, pdbName,
cmTarget::SHARED_LIBRARY, config);
}
else
{
// Use the name of the real type of the library (shared or module).
this->GetLibraryNamesInternal(sharedName, sharedSOName, sharedRealName,
importName, pdbName, this->GetType(),
config);
}
}
void cmTarget::GetLibraryNamesInternal(std::string& name,
std::string& soName,
std::string& realName,
std::string& impName,
std::string& pdbName,
TargetType type,
const char* config)
{
// Construct the name of the soname flag variable for this language.
const char* ll =
this->GetLinkerLanguage(
this->Makefile->GetLocalGenerator()->GetGlobalGenerator());
std::string sonameFlag = "CMAKE_SHARED_LIBRARY_SONAME";
if(ll)
{
sonameFlag += "_";
sonameFlag += ll;
}
sonameFlag += "_FLAG";
// Check for library version properties.
const char* version = this->GetProperty("VERSION");
const char* soversion = this->GetProperty("SOVERSION");
if((type != cmTarget::SHARED_LIBRARY && type != cmTarget::MODULE_LIBRARY) ||
!this->Makefile->GetDefinition(sonameFlag.c_str()))
{
// Versioning is supported only for shared libraries and modules,
// and then only when the platform supports an soname flag.
version = 0;
soversion = 0;
}
if(version && !soversion)
{
// The soversion must be set if the library version is set. Use
// the library version as the soversion.
soversion = version;
}
// Get the components of the library name.
std::string prefix;
std::string base;
std::string suffix;
this->GetFullNameInternal(type, config, false, prefix, base, suffix);
// The library name.
name = prefix+base+suffix;
// The library's soname.
#if defined(__APPLE__)
soName = prefix+base;
#else
soName = name;
#endif
if(soversion)
{
soName += ".";
soName += soversion;
}
#if defined(__APPLE__)
soName += suffix;
#endif
// The library's real name on disk.
#if defined(__APPLE__)
realName = prefix+base;
#else
realName = name;
#endif
if(version)
{
realName += ".";
realName += version;
}
else if(soversion)
{
realName += ".";
realName += soversion;
}
#if defined(__APPLE__)
realName += suffix;
#endif
// The import library name.
if(type == cmTarget::SHARED_LIBRARY ||
type == cmTarget::MODULE_LIBRARY)
{
impName = this->GetFullNameInternal(type, config, true);
}
else
{
impName = "";
}
// The program database file name.
pdbName = prefix+base+".pdb";
}
void cmTarget::GetExecutableNames(std::string& name,
std::string& realName,
std::string& impName,
std::string& pdbName,
const char* config)
{
// Get the names based on the real type of the executable.
this->GetExecutableNamesInternal(name, realName, impName, pdbName,
this->GetType(), config);
}
void cmTarget::GetExecutableCleanNames(std::string& name,
std::string& realName,
std::string& impName,
std::string& pdbName,
const char* config)
{
// Get the name and versioned name of this executable.
this->GetExecutableNamesInternal(name, realName, impName, pdbName,
cmTarget::EXECUTABLE, config);
}
void cmTarget::GetExecutableNamesInternal(std::string& name,
std::string& realName,
std::string& impName,
std::string& pdbName,
TargetType type,
const char* config)
{
// This versioning is supported only for executables and then only
// when the platform supports symbolic links.
#if defined(_WIN32) && !defined(__CYGWIN__)
const char* version = 0;
#else
// Check for executable version properties.
const char* version = this->GetProperty("VERSION");
if(type != cmTarget::EXECUTABLE)
{
version = 0;
}
#endif
// Get the components of the executable name.
std::string prefix;
std::string base;
std::string suffix;
this->GetFullNameInternal(type, config, false, prefix, base, suffix);
// The executable name.
name = prefix+base+suffix;
// The executable's real name on disk.
#if defined(__CYGWIN__)
realName = prefix+base;
#else
realName = name;
#endif
if(version)
{
realName += "-";
realName += version;
}
#if defined(__CYGWIN__)
realName += suffix;
#endif
// The import library name.
impName = this->GetFullNameInternal(type, config, true);
// The program database file name.
pdbName = prefix+base+".pdb";
}
//----------------------------------------------------------------------------
void cmTarget::SetPropertyDefault(const char* property,
const char* default_value)
{
// Compute the name of the variable holding the default value.
std::string var = "CMAKE_";
var += property;
if(const char* value = this->Makefile->GetDefinition(var.c_str()))
{
this->SetProperty(property, value);
}
else if(default_value)
{
this->SetProperty(property, default_value);
}
}
//----------------------------------------------------------------------------
bool cmTarget::HaveBuildTreeRPATH()
{
return (!this->GetPropertyAsBool("SKIP_BUILD_RPATH") &&
!this->LinkLibraries.empty());
}
//----------------------------------------------------------------------------
bool cmTarget::HaveInstallTreeRPATH()
{
const char* install_rpath = this->GetProperty("INSTALL_RPATH");
return install_rpath && *install_rpath;
}
//----------------------------------------------------------------------------
bool cmTarget::NeedRelinkBeforeInstall()
{
// Only executables and shared libraries can have an rpath and may
// need relinking.
if(this->TargetTypeValue != cmTarget::EXECUTABLE &&
this->TargetTypeValue != cmTarget::SHARED_LIBRARY &&
this->TargetTypeValue != cmTarget::MODULE_LIBRARY)
{
return false;
}
// If there is no install location this target will not be installed
// and therefore does not need relinking.
if(!this->GetHaveInstallRule())
{
return false;
}
// If skipping all rpaths completely then no relinking is needed.
if(this->Makefile->IsOn("CMAKE_SKIP_RPATH"))
{
return false;
}
// If building with the install-tree rpath no relinking is needed.
if(this->GetPropertyAsBool("BUILD_WITH_INSTALL_RPATH"))
{
return false;
}
// Check for rpath support on this platform.
if(const char* ll = this->GetLinkerLanguage(
this->Makefile->GetLocalGenerator()->GetGlobalGenerator()))
{
std::string flagVar = "CMAKE_SHARED_LIBRARY_RUNTIME_";
flagVar += ll;
flagVar += "_FLAG";
if(!this->Makefile->IsSet(flagVar.c_str()))
{
// There is no rpath support on this platform so nothing needs
// relinking.
return false;
}
}
else
{
// No linker language is known. This error will be reported by
// other code.
return false;
}
// If either a build or install tree rpath is set then the rpath
// will likely change between the build tree and install tree and
// this target must be relinked.
return this->HaveBuildTreeRPATH() || this->HaveInstallTreeRPATH();
}
//----------------------------------------------------------------------------
std::string cmTarget::GetInstallNameDirForBuildTree(const char* config)
{
// If building directly for installation then the build tree install_name
// is the same as the install tree.
if(this->GetPropertyAsBool("BUILD_WITH_INSTALL_RPATH"))
{
return GetInstallNameDirForInstallTree(config);
}
// Use the build tree directory for the target.
if(this->Makefile->IsOn("CMAKE_PLATFORM_HAS_INSTALLNAME") &&
!this->Makefile->IsOn("CMAKE_SKIP_RPATH") &&
!this->GetPropertyAsBool("SKIP_BUILD_RPATH"))
{
std::string dir = this->GetDirectory(config);
dir += "/";
return dir;
}
else
{
return "";
}
}
//----------------------------------------------------------------------------
std::string cmTarget::GetInstallNameDirForInstallTree(const char*)
{
// Lookup the target property.
const char* install_name_dir = this->GetProperty("INSTALL_NAME_DIR");
if(this->Makefile->IsOn("CMAKE_PLATFORM_HAS_INSTALLNAME") &&
!this->Makefile->IsOn("CMAKE_SKIP_RPATH") &&
install_name_dir && *install_name_dir)
{
std::string dir = install_name_dir;
dir += "/";
return dir;
}
else
{
return "";
}
}
//----------------------------------------------------------------------------
const char* cmTarget::GetOutputDir(bool implib)
{
// The implib option is only allowed for shared libraries, module
// libraries, and executables.
if(this->GetType() != cmTarget::SHARED_LIBRARY &&
this->GetType() != cmTarget::MODULE_LIBRARY &&
this->GetType() != cmTarget::EXECUTABLE)
{
implib = false;
}
// Sanity check. Only generators on platforms supporting import
// libraries should be asking for the import library output
// directory.
if(implib &&
!this->Makefile->GetDefinition("CMAKE_IMPORT_LIBRARY_SUFFIX"))
{
abort();
}
if(implib && !this->DLLPlatform)
{
abort();
}
// Select whether we are constructing the directory for the main
// target or the import library.
std::string& out = implib? this->OutputDirImplib : this->OutputDir;
if(out.empty())
{
// Look for a target property defining the target output directory
// based on the target type.
const char* propertyName = 0;
switch(this->GetType())
{
case cmTarget::SHARED_LIBRARY:
{
// For non-DLL platforms shared libraries are treated as
// library targets. For DLL platforms the DLL part of a
// shared library is treated as a runtime target and the
// corresponding import library is treated as an archive
// target.
if(this->DLLPlatform)
{
if(implib)
{
propertyName = "ARCHIVE_OUTPUT_DIRECTORY";
}
else
{
propertyName = "RUNTIME_OUTPUT_DIRECTORY";
}
}
else
{
propertyName = "LIBRARY_OUTPUT_DIRECTORY";
}
} break;
case cmTarget::STATIC_LIBRARY:
{
// Static libraries are always treated as archive targets.
propertyName = "ARCHIVE_OUTPUT_DIRECTORY";
} break;
case cmTarget::MODULE_LIBRARY:
{
// Module libraries are always treated as library targets.
// Module import libraries are treated as archive targets.
if(implib)
{
propertyName = "ARCHIVE_OUTPUT_DIRECTORY";
}
else
{
propertyName = "LIBRARY_OUTPUT_DIRECTORY";
}
} break;
case cmTarget::EXECUTABLE:
{
// Executables are always treated as runtime targets.
// Executable import libraries are treated as archive targets.
if(implib)
{
propertyName = "ARCHIVE_OUTPUT_DIRECTORY";
}
else
{
propertyName = "RUNTIME_OUTPUT_DIRECTORY";
}
} break;
default: break;
}
// Select an output directory.
if(const char* outdir = this->GetProperty(propertyName))
{
// Use the user-specified output directory.
out = outdir;
}
else if(this->GetType() == cmTarget::EXECUTABLE)
{
// Lookup the output path for executables.
out = this->Makefile->GetSafeDefinition("EXECUTABLE_OUTPUT_PATH");
}
else if(this->GetType() == cmTarget::STATIC_LIBRARY ||
this->GetType() == cmTarget::SHARED_LIBRARY ||
this->GetType() == cmTarget::MODULE_LIBRARY)
{
// Lookup the output path for libraries.
out = this->Makefile->GetSafeDefinition("LIBRARY_OUTPUT_PATH");
}
if(out.empty())
{
// Default to the current output directory.
out = ".";
}
// Convert the output path to a full path in case it is
// specified as a relative path. Treat a relative path as
// relative to the current output directory for this makefile.
out =
cmSystemTools::CollapseFullPath
(out.c_str(), this->Makefile->GetStartOutputDirectory());
#if defined(__APPLE__)
// frameworks do not have a prefix or a suffix
if(this->GetPropertyAsBool("FRAMEWORK"))
{
out += "/";
out += this->GetFullName(0, implib);
out += ".framework";
}
#endif
// Make sure the output path exists on disk.
if(!cmSystemTools::MakeDirectory(out.c_str()))
{
cmSystemTools::Error("Error failed to create output directory:",
out.c_str());
}
}
return out.c_str();
}
//----------------------------------------------------------------------------
const char* cmTarget::GetExportMacro()
{
// Define the symbol for targets that export symbols.
if(this->GetType() == cmTarget::SHARED_LIBRARY ||
this->GetType() == cmTarget::MODULE_LIBRARY ||
this->GetType() == cmTarget::EXECUTABLE &&
this->GetPropertyAsBool("ENABLE_EXPORTS"))
{
if(const char* custom_export_name = this->GetProperty("DEFINE_SYMBOL"))
{
this->ExportMacro = custom_export_name;
}
else
{
std::string in = this->GetName();
in += "_EXPORTS";
this->ExportMacro = cmSystemTools::MakeCindentifier(in.c_str());
}
return this->ExportMacro.c_str();
}
else
{
return 0;
}
}
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