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bf32b95efe
In FindNormalLibraryDirsPerName we consider one name at a time and search the entire path. Avoid repeated consideration of names by removing each one from the list of candidates before considering the next one. This will not change behavior because we already know the earlier candidates were not found on repeated considering anyway.
550 lines
17 KiB
C++
550 lines
17 KiB
C++
/*============================================================================
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CMake - Cross Platform Makefile Generator
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Copyright 2000-2009 Kitware, Inc., Insight Software Consortium
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Distributed under the OSI-approved BSD License (the "License");
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see accompanying file Copyright.txt for details.
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This software is distributed WITHOUT ANY WARRANTY; without even the
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implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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See the License for more information.
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============================================================================*/
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#include "cmFindLibraryCommand.h"
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#include <cmsys/Directory.hxx>
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cmFindLibraryCommand::cmFindLibraryCommand()
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{
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this->EnvironmentPath = "LIB";
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this->NamesPerDirAllowed = true;
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}
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// cmFindLibraryCommand
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bool cmFindLibraryCommand
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::InitialPass(std::vector<std::string> const& argsIn, cmExecutionStatus &)
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{
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this->VariableDocumentation = "Path to a library.";
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this->CMakePathName = "LIBRARY";
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if(!this->ParseArguments(argsIn))
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{
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return false;
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}
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if(this->AlreadyInCache)
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{
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// If the user specifies the entry on the command line without a
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// type we should add the type and docstring but keep the original
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// value.
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if(this->AlreadyInCacheWithoutMetaInfo)
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{
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this->Makefile->AddCacheDefinition(this->VariableName, "",
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this->VariableDocumentation.c_str(),
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cmState::FILEPATH);
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}
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return true;
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}
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if(const char* abi_name =
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this->Makefile->GetDefinition("CMAKE_INTERNAL_PLATFORM_ABI"))
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{
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std::string abi = abi_name;
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if(abi.find("ELF N32") != abi.npos)
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{
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// Convert lib to lib32.
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this->AddArchitecturePaths("32");
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}
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}
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if(this->Makefile->GetState()
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->GetGlobalPropertyAsBool("FIND_LIBRARY_USE_LIB64_PATHS"))
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{
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// add special 64 bit paths if this is a 64 bit compile.
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if(this->Makefile->PlatformIs64Bit())
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{
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this->AddArchitecturePaths("64");
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}
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}
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std::string library = this->FindLibrary();
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if(library != "")
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{
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// Save the value in the cache
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this->Makefile->AddCacheDefinition(this->VariableName,
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library.c_str(),
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this->VariableDocumentation.c_str(),
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cmState::FILEPATH);
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return true;
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}
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std::string notfound = this->VariableName + "-NOTFOUND";
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this->Makefile->AddCacheDefinition(this->VariableName,
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notfound.c_str(),
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this->VariableDocumentation.c_str(),
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cmState::FILEPATH);
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return true;
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}
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//----------------------------------------------------------------------------
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void cmFindLibraryCommand::AddArchitecturePaths(const char* suffix)
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{
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std::vector<std::string> original;
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original.swap(this->SearchPaths);
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for(std::vector<std::string>::const_iterator i = original.begin();
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i != original.end(); ++i)
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{
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this->AddArchitecturePath(*i, 0, suffix);
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}
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}
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//----------------------------------------------------------------------------
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void cmFindLibraryCommand::AddArchitecturePath(
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std::string const& dir, std::string::size_type start_pos,
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const char* suffix, bool fresh)
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{
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std::string::size_type pos = dir.find("lib/", start_pos);
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if(pos != std::string::npos)
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{
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std::string cur_dir = dir.substr(0,pos+3);
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// Follow "lib<suffix>".
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std::string next_dir = cur_dir + suffix;
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if(cmSystemTools::FileIsDirectory(next_dir))
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{
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next_dir += dir.substr(pos+3);
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std::string::size_type next_pos = pos+3+strlen(suffix)+1;
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this->AddArchitecturePath(next_dir, next_pos, suffix);
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}
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// Follow "lib".
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if(cmSystemTools::FileIsDirectory(cur_dir))
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{
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this->AddArchitecturePath(dir, pos+3+1, suffix, false);
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}
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}
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if(fresh)
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{
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// Check for <dir><suffix>/.
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std::string cur_dir = dir + suffix + "/";
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if(cmSystemTools::FileIsDirectory(cur_dir))
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{
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this->SearchPaths.push_back(cur_dir);
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}
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// Now add the original unchanged path
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if(cmSystemTools::FileIsDirectory(dir))
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{
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this->SearchPaths.push_back(dir);
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}
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}
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}
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//----------------------------------------------------------------------------
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std::string cmFindLibraryCommand::FindLibrary()
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{
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std::string library;
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if(this->SearchFrameworkFirst || this->SearchFrameworkOnly)
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{
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library = this->FindFrameworkLibrary();
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}
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if(library.empty() && !this->SearchFrameworkOnly)
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{
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library = this->FindNormalLibrary();
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}
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if(library.empty() && this->SearchFrameworkLast)
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{
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library = this->FindFrameworkLibrary();
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}
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return library;
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}
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//----------------------------------------------------------------------------
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struct cmFindLibraryHelper
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{
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cmFindLibraryHelper(cmMakefile* mf);
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// Context information.
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cmMakefile* Makefile;
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cmGlobalGenerator* GG;
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// List of valid prefixes and suffixes.
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std::vector<std::string> Prefixes;
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std::vector<std::string> Suffixes;
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std::string PrefixRegexStr;
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std::string SuffixRegexStr;
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// Keep track of the best library file found so far.
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typedef std::vector<std::string>::size_type size_type;
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std::string BestPath;
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// Support for OpenBSD shared library naming: lib<name>.so.<major>.<minor>
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bool OpenBSD;
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// Current names under consideration.
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struct Name
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{
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bool TryRaw;
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std::string Raw;
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cmsys::RegularExpression Regex;
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Name(): TryRaw(false) {}
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};
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std::vector<Name> Names;
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// Current full path under consideration.
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std::string TestPath;
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void RegexFromLiteral(std::string& out, std::string const& in);
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void RegexFromList(std::string& out, std::vector<std::string> const& in);
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size_type GetPrefixIndex(std::string const& prefix)
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{
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return std::find(this->Prefixes.begin(), this->Prefixes.end(),
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prefix) - this->Prefixes.begin();
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}
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size_type GetSuffixIndex(std::string const& suffix)
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{
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return std::find(this->Suffixes.begin(), this->Suffixes.end(),
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suffix) - this->Suffixes.begin();
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}
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bool HasValidSuffix(std::string const& name);
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void AddName(std::string const& name);
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void SetName(std::string const& name);
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bool CheckDirectory(std::string const& path);
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bool CheckDirectoryForName(std::string const& path, Name& name);
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};
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//----------------------------------------------------------------------------
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cmFindLibraryHelper::cmFindLibraryHelper(cmMakefile* mf):
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Makefile(mf)
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{
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this->GG = this->Makefile->GetGlobalGenerator();
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// Collect the list of library name prefixes/suffixes to try.
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const char* prefixes_list =
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this->Makefile->GetRequiredDefinition("CMAKE_FIND_LIBRARY_PREFIXES");
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const char* suffixes_list =
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this->Makefile->GetRequiredDefinition("CMAKE_FIND_LIBRARY_SUFFIXES");
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cmSystemTools::ExpandListArgument(prefixes_list, this->Prefixes, true);
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cmSystemTools::ExpandListArgument(suffixes_list, this->Suffixes, true);
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this->RegexFromList(this->PrefixRegexStr, this->Prefixes);
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this->RegexFromList(this->SuffixRegexStr, this->Suffixes);
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// Check whether to use OpenBSD-style library version comparisons.
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this->OpenBSD =
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this->Makefile->GetState()
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->GetGlobalPropertyAsBool("FIND_LIBRARY_USE_OPENBSD_VERSIONING");
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}
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//----------------------------------------------------------------------------
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void cmFindLibraryHelper::RegexFromLiteral(std::string& out,
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std::string const& in)
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{
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for(std::string::const_iterator ci = in.begin(); ci != in.end(); ++ci)
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{
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char ch = *ci;
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if(ch == '[' || ch == ']' || ch == '(' || ch == ')' || ch == '\\' ||
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ch == '.' || ch == '*' || ch == '+' || ch == '?' || ch == '-' ||
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ch == '^' || ch == '$')
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{
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out += "\\";
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}
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#if defined(_WIN32) || defined(__APPLE__)
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out += tolower(ch);
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#else
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out += ch;
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#endif
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}
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}
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//----------------------------------------------------------------------------
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void cmFindLibraryHelper::RegexFromList(std::string& out,
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std::vector<std::string> const& in)
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{
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// Surround the list in parens so the '|' does not apply to anything
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// else and the result can be checked after matching.
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out += "(";
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const char* sep = "";
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for(std::vector<std::string>::const_iterator si = in.begin();
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si != in.end(); ++si)
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{
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// Separate from previous item.
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out += sep;
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sep = "|";
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// Append this item.
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this->RegexFromLiteral(out, *si);
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}
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out += ")";
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}
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//----------------------------------------------------------------------------
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bool cmFindLibraryHelper::HasValidSuffix(std::string const& name)
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{
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for(std::vector<std::string>::const_iterator si = this->Suffixes.begin();
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si != this->Suffixes.end(); ++si)
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{
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std::string suffix = *si;
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if(name.length() <= suffix.length())
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{
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continue;
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}
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// Check if the given name ends in a valid library suffix.
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if(name.substr(name.size()-suffix.length()) == suffix)
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{
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return true;
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}
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// Check if a valid library suffix is somewhere in the name,
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// this may happen e.g. for versioned shared libraries: libfoo.so.2
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suffix += ".";
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if(name.find(suffix) != name.npos)
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{
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return true;
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}
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}
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return false;
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}
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//----------------------------------------------------------------------------
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void cmFindLibraryHelper::AddName(std::string const& name)
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{
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Name entry;
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// Consider checking the raw name too.
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entry.TryRaw = this->HasValidSuffix(name);
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entry.Raw = name;
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// Build a regular expression to match library names.
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std::string regex = "^";
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regex += this->PrefixRegexStr;
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this->RegexFromLiteral(regex, name);
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regex += this->SuffixRegexStr;
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if(this->OpenBSD)
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{
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regex += "(\\.[0-9]+\\.[0-9]+)?";
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}
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regex += "$";
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entry.Regex.compile(regex.c_str());
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this->Names.push_back(entry);
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}
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//----------------------------------------------------------------------------
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void cmFindLibraryHelper::SetName(std::string const& name)
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{
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this->Names.clear();
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this->AddName(name);
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}
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//----------------------------------------------------------------------------
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bool cmFindLibraryHelper::CheckDirectory(std::string const& path)
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{
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for(std::vector<Name>::iterator i = this->Names.begin();
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i != this->Names.end(); ++i)
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{
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if(this->CheckDirectoryForName(path, *i))
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{
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return true;
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}
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}
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return false;
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}
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//----------------------------------------------------------------------------
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bool cmFindLibraryHelper::CheckDirectoryForName(std::string const& path,
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Name& name)
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{
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// If the original library name provided by the user matches one of
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// the suffixes, try it first. This allows users to search
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// specifically for a static library on some platforms (on MS tools
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// one cannot tell just from the library name whether it is a static
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// library or an import library).
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if(name.TryRaw)
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{
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this->TestPath = path;
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this->TestPath += name.Raw;
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if(cmSystemTools::FileExists(this->TestPath.c_str(), true))
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{
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this->BestPath =
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cmSystemTools::CollapseFullPath(this->TestPath);
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cmSystemTools::ConvertToUnixSlashes(this->BestPath);
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return true;
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}
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}
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// No library file has yet been found.
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size_type bestPrefix = this->Prefixes.size();
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size_type bestSuffix = this->Suffixes.size();
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unsigned int bestMajor = 0;
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unsigned int bestMinor = 0;
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// Search for a file matching the library name regex.
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std::string dir = path;
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cmSystemTools::ConvertToUnixSlashes(dir);
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std::set<std::string> const& files = this->GG->GetDirectoryContent(dir);
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for(std::set<std::string>::const_iterator fi = files.begin();
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fi != files.end(); ++fi)
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{
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std::string const& origName = *fi;
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#if defined(_WIN32) || defined(__APPLE__)
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std::string testName = cmSystemTools::LowerCase(origName);
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#else
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std::string const& testName = origName;
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#endif
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if(name.Regex.find(testName))
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{
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this->TestPath = path;
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this->TestPath += origName;
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if(!cmSystemTools::FileIsDirectory(this->TestPath))
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{
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// This is a matching file. Check if it is better than the
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// best name found so far. Earlier prefixes are preferred,
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// followed by earlier suffixes. For OpenBSD, shared library
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// version extensions are compared.
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size_type prefix = this->GetPrefixIndex(name.Regex.match(1));
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size_type suffix = this->GetSuffixIndex(name.Regex.match(2));
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unsigned int major = 0;
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unsigned int minor = 0;
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if(this->OpenBSD)
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{
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sscanf(name.Regex.match(3).c_str(), ".%u.%u", &major, &minor);
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}
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if(this->BestPath.empty() || prefix < bestPrefix ||
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(prefix == bestPrefix && suffix < bestSuffix) ||
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(prefix == bestPrefix && suffix == bestSuffix &&
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(major > bestMajor ||
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(major == bestMajor && minor > bestMinor))))
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{
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this->BestPath = this->TestPath;
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bestPrefix = prefix;
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bestSuffix = suffix;
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bestMajor = major;
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bestMinor = minor;
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}
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}
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}
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}
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// Use the best candidate found in this directory, if any.
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return !this->BestPath.empty();
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}
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//----------------------------------------------------------------------------
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std::string cmFindLibraryCommand::FindNormalLibrary()
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{
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if(this->NamesPerDir)
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{
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return this->FindNormalLibraryNamesPerDir();
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}
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else
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{
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return this->FindNormalLibraryDirsPerName();
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}
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}
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//----------------------------------------------------------------------------
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std::string cmFindLibraryCommand::FindNormalLibraryNamesPerDir()
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{
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// Search for all names in each directory.
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cmFindLibraryHelper helper(this->Makefile);
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for(std::vector<std::string>::const_iterator ni = this->Names.begin();
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ni != this->Names.end() ; ++ni)
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{
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helper.AddName(*ni);
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}
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// Search every directory.
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for(std::vector<std::string>::const_iterator
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p = this->SearchPaths.begin(); p != this->SearchPaths.end(); ++p)
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{
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if(helper.CheckDirectory(*p))
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{
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return helper.BestPath;
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}
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}
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// Couldn't find the library.
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return "";
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}
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//----------------------------------------------------------------------------
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std::string cmFindLibraryCommand::FindNormalLibraryDirsPerName()
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{
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// Search the entire path for each name.
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cmFindLibraryHelper helper(this->Makefile);
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for(std::vector<std::string>::const_iterator ni = this->Names.begin();
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ni != this->Names.end() ; ++ni)
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{
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// Switch to searching for this name.
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helper.SetName(*ni);
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// Search every directory.
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for(std::vector<std::string>::const_iterator
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p = this->SearchPaths.begin();
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p != this->SearchPaths.end(); ++p)
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{
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if(helper.CheckDirectory(*p))
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{
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return helper.BestPath;
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}
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}
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}
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// Couldn't find the library.
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return "";
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}
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//----------------------------------------------------------------------------
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std::string cmFindLibraryCommand::FindFrameworkLibrary()
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{
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if(this->NamesPerDir)
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{
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return this->FindFrameworkLibraryNamesPerDir();
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}
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else
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{
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return this->FindFrameworkLibraryDirsPerName();
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}
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}
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//----------------------------------------------------------------------------
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std::string cmFindLibraryCommand::FindFrameworkLibraryNamesPerDir()
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{
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std::string fwPath;
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// Search for all names in each search path.
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for(std::vector<std::string>::const_iterator di = this->SearchPaths.begin();
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di != this->SearchPaths.end(); ++di)
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{
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for(std::vector<std::string>::const_iterator ni = this->Names.begin();
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ni != this->Names.end() ; ++ni)
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{
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fwPath = *di;
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fwPath += *ni;
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fwPath += ".framework";
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if(cmSystemTools::FileIsDirectory(fwPath))
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{
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return cmSystemTools::CollapseFullPath(fwPath);
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}
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}
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}
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// No framework found.
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return "";
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}
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//----------------------------------------------------------------------------
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std::string cmFindLibraryCommand::FindFrameworkLibraryDirsPerName()
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{
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std::string fwPath;
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// Search for each name in all search paths.
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for(std::vector<std::string>::const_iterator ni = this->Names.begin();
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ni != this->Names.end() ; ++ni)
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{
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for(std::vector<std::string>::const_iterator
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di = this->SearchPaths.begin();
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di != this->SearchPaths.end(); ++di)
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{
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fwPath = *di;
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fwPath += *ni;
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fwPath += ".framework";
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if(cmSystemTools::FileIsDirectory(fwPath))
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{
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return cmSystemTools::CollapseFullPath(fwPath);
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}
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}
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}
|
|
|
|
// No framework found.
|
|
return "";
|
|
}
|