mirror of
https://github.com/reactos/CMake.git
synced 2024-12-14 07:09:22 +00:00
489b1c23b9
Work around the command-line-length limit by using an @linklibs.rsp response file to pass the flags for link libraries. This allows very long lists of libraries to be used in addition to the existing support for passing object files via response file. Suggested-by: Peter Keuschnigg <peter.keuschnigg@pmu.ac.at>
464 lines
16 KiB
C++
464 lines
16 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 "cmMakefileExecutableTargetGenerator.h"
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#include "cmGeneratedFileStream.h"
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#include "cmGlobalUnixMakefileGenerator3.h"
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#include "cmLocalUnixMakefileGenerator3.h"
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#include "cmMakefile.h"
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#include "cmSourceFile.h"
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#include "cmTarget.h"
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#include "cmake.h"
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//----------------------------------------------------------------------------
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cmMakefileExecutableTargetGenerator
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::cmMakefileExecutableTargetGenerator(cmGeneratorTarget* target):
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cmMakefileTargetGenerator(target->Target)
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{
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this->CustomCommandDriver = OnDepends;
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this->Target->GetExecutableNames(
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this->TargetNameOut, this->TargetNameReal, this->TargetNameImport,
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this->TargetNamePDB, this->ConfigName);
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this->OSXBundleGenerator = new cmOSXBundleGenerator(target,
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this->ConfigName);
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this->OSXBundleGenerator->SetMacContentFolders(&this->MacContentFolders);
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}
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//----------------------------------------------------------------------------
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cmMakefileExecutableTargetGenerator
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::~cmMakefileExecutableTargetGenerator()
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{
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delete this->OSXBundleGenerator;
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}
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//----------------------------------------------------------------------------
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void cmMakefileExecutableTargetGenerator::WriteRuleFiles()
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{
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// create the build.make file and directory, put in the common blocks
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this->CreateRuleFile();
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// write rules used to help build object files
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this->WriteCommonCodeRules();
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// write the per-target per-language flags
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this->WriteTargetLanguageFlags();
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// write in rules for object files and custom commands
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this->WriteTargetBuildRules();
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// write the link rules
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this->WriteExecutableRule(false);
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if(this->Target->NeedRelinkBeforeInstall(this->ConfigName))
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{
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// Write rules to link an installable version of the target.
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this->WriteExecutableRule(true);
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}
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// Write the requires target.
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this->WriteTargetRequiresRules();
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// Write clean target
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this->WriteTargetCleanRules();
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// Write the dependency generation rule. This must be done last so
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// that multiple output pair information is available.
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this->WriteTargetDependRules();
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// close the streams
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this->CloseFileStreams();
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}
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//----------------------------------------------------------------------------
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void cmMakefileExecutableTargetGenerator::WriteExecutableRule(bool relink)
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{
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std::vector<std::string> commands;
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// Build list of dependencies.
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std::vector<std::string> depends;
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this->AppendLinkDepends(depends);
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// Get the name of the executable to generate.
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std::string targetName;
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std::string targetNameReal;
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std::string targetNameImport;
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std::string targetNamePDB;
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this->Target->GetExecutableNames
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(targetName, targetNameReal, targetNameImport, targetNamePDB,
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this->ConfigName);
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// Construct the full path version of the names.
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std::string outpath = this->Target->GetDirectory(this->ConfigName);
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if(this->Target->IsAppBundleOnApple())
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{
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this->OSXBundleGenerator->CreateAppBundle(targetName, outpath);
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}
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outpath += "/";
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std::string outpathImp;
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if(relink)
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{
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outpath = this->Makefile->GetStartOutputDirectory();
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outpath += cmake::GetCMakeFilesDirectory();
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outpath += "/CMakeRelink.dir";
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cmSystemTools::MakeDirectory(outpath.c_str());
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outpath += "/";
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if(!targetNameImport.empty())
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{
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outpathImp = outpath;
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}
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}
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else
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{
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cmSystemTools::MakeDirectory(outpath.c_str());
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if(!targetNameImport.empty())
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{
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outpathImp = this->Target->GetDirectory(this->ConfigName, true);
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cmSystemTools::MakeDirectory(outpathImp.c_str());
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outpathImp += "/";
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}
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}
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std::string compilePdbOutputPath =
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this->Target->GetCompilePDBDirectory(this->ConfigName);
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cmSystemTools::MakeDirectory(compilePdbOutputPath.c_str());
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std::string pdbOutputPath = this->Target->GetPDBDirectory(this->ConfigName);
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cmSystemTools::MakeDirectory(pdbOutputPath.c_str());
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pdbOutputPath += "/";
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std::string targetFullPath = outpath + targetName;
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std::string targetFullPathReal = outpath + targetNameReal;
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std::string targetFullPathPDB = pdbOutputPath + targetNamePDB;
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std::string targetFullPathImport = outpathImp + targetNameImport;
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std::string targetOutPathPDB =
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this->Convert(targetFullPathPDB.c_str(),
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cmLocalGenerator::NONE,
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cmLocalGenerator::SHELL);
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// Convert to the output path to use in constructing commands.
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std::string targetOutPath =
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this->Convert(targetFullPath.c_str(),
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cmLocalGenerator::START_OUTPUT,
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cmLocalGenerator::SHELL);
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std::string targetOutPathReal =
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this->Convert(targetFullPathReal.c_str(),
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cmLocalGenerator::START_OUTPUT,
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cmLocalGenerator::SHELL);
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std::string targetOutPathImport =
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this->Convert(targetFullPathImport.c_str(),
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cmLocalGenerator::START_OUTPUT,
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cmLocalGenerator::SHELL);
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// Get the language to use for linking this executable.
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const char* linkLanguage =
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this->Target->GetLinkerLanguage(this->ConfigName);
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// Make sure we have a link language.
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if(!linkLanguage)
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{
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cmSystemTools::Error("Cannot determine link language for target \"",
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this->Target->GetName(), "\".");
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return;
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}
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if(!this->NoRuleMessages)
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{
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// Add the link message.
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std::string buildEcho = "Linking ";
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buildEcho += linkLanguage;
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buildEcho += " executable ";
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buildEcho += targetOutPath;
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this->LocalGenerator->AppendEcho(commands, buildEcho.c_str(),
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cmLocalUnixMakefileGenerator3::EchoLink);
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}
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// Build a list of compiler flags and linker flags.
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std::string flags;
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std::string linkFlags;
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// Add flags to create an executable.
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this->LocalGenerator->
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AddConfigVariableFlags(linkFlags, "CMAKE_EXE_LINKER_FLAGS",
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this->ConfigName);
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if(this->Target->GetPropertyAsBool("WIN32_EXECUTABLE"))
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{
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this->LocalGenerator->AppendFlags
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(linkFlags, this->Makefile->GetDefinition("CMAKE_CREATE_WIN32_EXE"));
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}
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else
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{
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this->LocalGenerator->AppendFlags
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(linkFlags, this->Makefile->GetDefinition("CMAKE_CREATE_CONSOLE_EXE"));
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}
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// Add symbol export flags if necessary.
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if(this->Target->IsExecutableWithExports())
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{
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std::string export_flag_var = "CMAKE_EXE_EXPORTS_";
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export_flag_var += linkLanguage;
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export_flag_var += "_FLAG";
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this->LocalGenerator->AppendFlags
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(linkFlags, this->Makefile->GetDefinition(export_flag_var.c_str()));
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}
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// Add language feature flags.
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this->AddFeatureFlags(flags, linkLanguage);
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this->LocalGenerator->AddArchitectureFlags(flags, this->GeneratorTarget,
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linkLanguage, this->ConfigName);
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// Add target-specific linker flags.
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this->LocalGenerator->AppendFlags
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(linkFlags, this->Target->GetProperty("LINK_FLAGS"));
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std::string linkFlagsConfig = "LINK_FLAGS_";
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linkFlagsConfig += cmSystemTools::UpperCase(this->ConfigName);
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this->LocalGenerator->AppendFlags
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(linkFlags, this->Target->GetProperty(linkFlagsConfig.c_str()));
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this->AddModuleDefinitionFlag(linkFlags);
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// Construct a list of files associated with this executable that
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// may need to be cleaned.
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std::vector<std::string> exeCleanFiles;
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exeCleanFiles.push_back(this->Convert(targetFullPath.c_str(),
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cmLocalGenerator::START_OUTPUT,
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cmLocalGenerator::UNCHANGED));
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#ifdef _WIN32
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// There may be a manifest file for this target. Add it to the
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// clean set just in case.
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exeCleanFiles.push_back(this->Convert((targetFullPath+".manifest").c_str(),
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cmLocalGenerator::START_OUTPUT,
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cmLocalGenerator::UNCHANGED));
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#endif
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if(targetNameReal != targetName)
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{
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exeCleanFiles.push_back(this->Convert(targetFullPathReal.c_str(),
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cmLocalGenerator::START_OUTPUT,
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cmLocalGenerator::UNCHANGED));
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}
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if(!targetNameImport.empty())
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{
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exeCleanFiles.push_back(this->Convert(targetFullPathImport.c_str(),
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cmLocalGenerator::START_OUTPUT,
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cmLocalGenerator::UNCHANGED));
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std::string implib;
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if(this->Target->GetImplibGNUtoMS(targetFullPathImport, implib))
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{
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exeCleanFiles.push_back(this->Convert(implib.c_str(),
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cmLocalGenerator::START_OUTPUT,
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cmLocalGenerator::UNCHANGED));
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}
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}
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// List the PDB for cleaning only when the whole target is
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// cleaned. We do not want to delete the .pdb file just before
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// linking the target.
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this->CleanFiles.push_back
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(this->Convert(targetFullPathPDB.c_str(),
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cmLocalGenerator::START_OUTPUT,
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cmLocalGenerator::UNCHANGED));
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// Add the pre-build and pre-link rules building but not when relinking.
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if(!relink)
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{
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this->LocalGenerator
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->AppendCustomCommands(commands, this->Target->GetPreBuildCommands(),
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this->Target);
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this->LocalGenerator
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->AppendCustomCommands(commands, this->Target->GetPreLinkCommands(),
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this->Target);
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}
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// Determine whether a link script will be used.
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bool useLinkScript = this->GlobalGenerator->GetUseLinkScript();
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// Construct the main link rule.
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std::vector<std::string> real_link_commands;
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std::string linkRuleVar = "CMAKE_";
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linkRuleVar += linkLanguage;
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linkRuleVar += "_LINK_EXECUTABLE";
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std::string linkRule = this->GetLinkRule(linkRuleVar.c_str());
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std::vector<std::string> commands1;
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cmSystemTools::ExpandListArgument(linkRule, real_link_commands);
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if(this->Target->IsExecutableWithExports())
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{
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// If a separate rule for creating an import library is specified
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// add it now.
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std::string implibRuleVar = "CMAKE_";
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implibRuleVar += linkLanguage;
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implibRuleVar += "_CREATE_IMPORT_LIBRARY";
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if(const char* rule =
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this->Makefile->GetDefinition(implibRuleVar.c_str()))
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{
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cmSystemTools::ExpandListArgument(rule, real_link_commands);
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}
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}
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// Select whether to use a response file for objects.
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bool useResponseFileForObjects = false;
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{
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std::string responseVar = "CMAKE_";
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responseVar += linkLanguage;
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responseVar += "_USE_RESPONSE_FILE_FOR_OBJECTS";
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if(this->Makefile->IsOn(responseVar.c_str()))
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{
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useResponseFileForObjects = true;
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}
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}
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// Select whether to use a response file for libraries.
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bool useResponseFileForLibs = false;
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{
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std::string responseVar = "CMAKE_";
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responseVar += linkLanguage;
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responseVar += "_USE_RESPONSE_FILE_FOR_LIBRARIES";
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if(this->Makefile->IsOn(responseVar.c_str()))
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{
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useResponseFileForLibs = true;
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}
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}
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// Expand the rule variables.
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{
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// Set path conversion for link script shells.
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this->LocalGenerator->SetLinkScriptShell(useLinkScript);
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// Collect up flags to link in needed libraries.
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std::string linkLibs;
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this->CreateLinkLibs(linkLibs, relink, useResponseFileForLibs, depends);
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// Construct object file lists that may be needed to expand the
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// rule.
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std::string buildObjs;
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this->CreateObjectLists(useLinkScript, false,
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useResponseFileForObjects, buildObjs, depends);
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cmLocalGenerator::RuleVariables vars;
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vars.RuleLauncher = "RULE_LAUNCH_LINK";
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vars.CMTarget = this->Target;
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vars.Language = linkLanguage;
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vars.Objects = buildObjs.c_str();
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std::string objectDir = this->Target->GetSupportDirectory();
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objectDir = this->Convert(objectDir.c_str(),
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cmLocalGenerator::START_OUTPUT,
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cmLocalGenerator::SHELL);
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vars.ObjectDir = objectDir.c_str();
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vars.Target = targetOutPathReal.c_str();
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vars.TargetPDB = targetOutPathPDB.c_str();
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// Setup the target version.
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std::string targetVersionMajor;
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std::string targetVersionMinor;
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{
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cmOStringStream majorStream;
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cmOStringStream minorStream;
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int major;
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int minor;
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this->Target->GetTargetVersion(major, minor);
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majorStream << major;
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minorStream << minor;
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targetVersionMajor = majorStream.str();
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targetVersionMinor = minorStream.str();
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}
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vars.TargetVersionMajor = targetVersionMajor.c_str();
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vars.TargetVersionMinor = targetVersionMinor.c_str();
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vars.LinkLibraries = linkLibs.c_str();
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vars.Flags = flags.c_str();
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vars.LinkFlags = linkFlags.c_str();
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// Expand placeholders in the commands.
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this->LocalGenerator->TargetImplib = targetOutPathImport;
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for(std::vector<std::string>::iterator i = real_link_commands.begin();
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i != real_link_commands.end(); ++i)
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{
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this->LocalGenerator->ExpandRuleVariables(*i, vars);
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}
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this->LocalGenerator->TargetImplib = "";
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// Restore path conversion to normal shells.
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this->LocalGenerator->SetLinkScriptShell(false);
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}
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// Optionally convert the build rule to use a script to avoid long
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// command lines in the make shell.
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if(useLinkScript)
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{
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// Use a link script.
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const char* name = (relink? "relink.txt" : "link.txt");
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this->CreateLinkScript(name, real_link_commands, commands1, depends);
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}
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else
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{
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// No link script. Just use the link rule directly.
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commands1 = real_link_commands;
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}
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this->LocalGenerator->CreateCDCommand
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(commands1,
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this->Makefile->GetStartOutputDirectory(),
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cmLocalGenerator::HOME_OUTPUT);
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commands.insert(commands.end(), commands1.begin(), commands1.end());
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commands1.clear();
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// Add a rule to create necessary symlinks for the library.
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if(targetOutPath != targetOutPathReal)
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{
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std::string symlink = "$(CMAKE_COMMAND) -E cmake_symlink_executable ";
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symlink += targetOutPathReal;
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symlink += " ";
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symlink += targetOutPath;
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commands1.push_back(symlink);
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this->LocalGenerator->CreateCDCommand(commands1,
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this->Makefile->GetStartOutputDirectory(),
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cmLocalGenerator::HOME_OUTPUT);
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commands.insert(commands.end(), commands1.begin(), commands1.end());
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commands1.clear();
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}
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// Add the post-build rules when building but not when relinking.
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if(!relink)
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{
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this->LocalGenerator->
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AppendCustomCommands(commands, this->Target->GetPostBuildCommands(),
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this->Target);
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}
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// Write the build rule.
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this->LocalGenerator->WriteMakeRule(*this->BuildFileStream,
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0,
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targetFullPathReal.c_str(),
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depends, commands, false);
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// The symlink name for the target should depend on the real target
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// so if the target version changes it rebuilds and recreates the
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// symlink.
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if(targetFullPath != targetFullPathReal)
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{
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depends.clear();
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commands.clear();
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depends.push_back(targetFullPathReal.c_str());
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this->LocalGenerator->WriteMakeRule(*this->BuildFileStream, 0,
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targetFullPath.c_str(),
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depends, commands, false);
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}
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// Write the main driver rule to build everything in this target.
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this->WriteTargetDriverRule(targetFullPath.c_str(), relink);
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// Clean all the possible executable names and symlinks.
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this->CleanFiles.insert(this->CleanFiles.end(),
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exeCleanFiles.begin(),
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exeCleanFiles.end());
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}
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