CMake/Source/cmMakefileLibraryTargetGenerator.cxx
Ruslan Baratov dfa8263f4b Implement interprocedural optimization for GNU compilers
Honor the `INTERPROCEDURAL_OPTIMIZATION` target property for GNU
compilers by activating their link-time-optimization (LTO) flags.
2017-03-30 14:56:52 -04:00

984 lines
37 KiB
C++

/* Distributed under the OSI-approved BSD 3-Clause License. See accompanying
file Copyright.txt or https://cmake.org/licensing for details. */
#include "cmMakefileLibraryTargetGenerator.h"
#include <algorithm>
#include <sstream>
#include <vector>
#include "cmGeneratedFileStream.h"
#include "cmGeneratorTarget.h"
#include "cmGlobalUnixMakefileGenerator3.h"
#include "cmLinkLineComputer.h"
#include "cmLinkLineDeviceComputer.h"
#include "cmLocalGenerator.h"
#include "cmLocalUnixMakefileGenerator3.h"
#include "cmMakefile.h"
#include "cmOSXBundleGenerator.h"
#include "cmOutputConverter.h"
#include "cmRulePlaceholderExpander.h"
#include "cmState.h"
#include "cmStateDirectory.h"
#include "cmStateSnapshot.h"
#include "cmStateTypes.h"
#include "cmSystemTools.h"
#include "cm_auto_ptr.hxx"
#include "cmake.h"
cmMakefileLibraryTargetGenerator::cmMakefileLibraryTargetGenerator(
cmGeneratorTarget* target)
: cmMakefileTargetGenerator(target)
{
this->CustomCommandDriver = OnDepends;
if (this->GeneratorTarget->GetType() != cmStateEnums::INTERFACE_LIBRARY) {
this->GeneratorTarget->GetLibraryNames(
this->TargetNameOut, this->TargetNameSO, this->TargetNameReal,
this->TargetNameImport, this->TargetNamePDB, this->ConfigName);
}
this->OSXBundleGenerator =
new cmOSXBundleGenerator(target, this->ConfigName);
this->OSXBundleGenerator->SetMacContentFolders(&this->MacContentFolders);
}
cmMakefileLibraryTargetGenerator::~cmMakefileLibraryTargetGenerator()
{
delete this->OSXBundleGenerator;
}
void cmMakefileLibraryTargetGenerator::WriteRuleFiles()
{
// create the build.make file and directory, put in the common blocks
this->CreateRuleFile();
// write rules used to help build object files
this->WriteCommonCodeRules();
// write the per-target per-language flags
this->WriteTargetLanguageFlags();
// write in rules for object files and custom commands
this->WriteTargetBuildRules();
// write the link rules
// Write the rule for this target type.
switch (this->GeneratorTarget->GetType()) {
case cmStateEnums::STATIC_LIBRARY:
this->WriteStaticLibraryRules();
break;
case cmStateEnums::SHARED_LIBRARY:
this->WriteSharedLibraryRules(false);
if (this->GeneratorTarget->NeedRelinkBeforeInstall(this->ConfigName)) {
// Write rules to link an installable version of the target.
this->WriteSharedLibraryRules(true);
}
break;
case cmStateEnums::MODULE_LIBRARY:
this->WriteModuleLibraryRules(false);
if (this->GeneratorTarget->NeedRelinkBeforeInstall(this->ConfigName)) {
// Write rules to link an installable version of the target.
this->WriteModuleLibraryRules(true);
}
break;
case cmStateEnums::OBJECT_LIBRARY:
this->WriteObjectLibraryRules();
break;
default:
// If language is not known, this is an error.
cmSystemTools::Error("Unknown Library Type");
break;
}
// Write the requires target.
this->WriteTargetRequiresRules();
// Write clean target
this->WriteTargetCleanRules();
// Write the dependency generation rule. This must be done last so
// that multiple output pair information is available.
this->WriteTargetDependRules();
// close the streams
this->CloseFileStreams();
}
void cmMakefileLibraryTargetGenerator::WriteObjectLibraryRules()
{
std::vector<std::string> commands;
std::vector<std::string> depends;
// Add post-build rules.
this->LocalGenerator->AppendCustomCommands(
commands, this->GeneratorTarget->GetPostBuildCommands(),
this->GeneratorTarget, this->LocalGenerator->GetBinaryDirectory());
// Depend on the object files.
this->AppendObjectDepends(depends);
// Write the rule.
this->LocalGenerator->WriteMakeRule(*this->BuildFileStream, CM_NULLPTR,
this->GeneratorTarget->GetName(),
depends, commands, true);
// Write the main driver rule to build everything in this target.
this->WriteTargetDriverRule(this->GeneratorTarget->GetName(), false);
}
void cmMakefileLibraryTargetGenerator::WriteStaticLibraryRules()
{
std::string linkLanguage =
this->GeneratorTarget->GetLinkerLanguage(this->ConfigName);
std::string linkRuleVar = this->GeneratorTarget->GetCreateRuleVariable(
linkLanguage, this->ConfigName);
std::string extraFlags;
this->LocalGenerator->GetStaticLibraryFlags(
extraFlags, cmSystemTools::UpperCase(this->ConfigName),
this->GeneratorTarget);
this->WriteLibraryRules(linkRuleVar, extraFlags, false);
}
void cmMakefileLibraryTargetGenerator::WriteSharedLibraryRules(bool relink)
{
if (this->GeneratorTarget->IsFrameworkOnApple()) {
this->WriteFrameworkRules(relink);
return;
}
if (!relink) {
const std::string cuda_lang("CUDA");
cmGeneratorTarget::LinkClosure const* closure =
this->GeneratorTarget->GetLinkClosure(this->ConfigName);
const bool hasCUDA =
(std::find(closure->Languages.begin(), closure->Languages.end(),
cuda_lang) != closure->Languages.end());
if (hasCUDA) {
std::string linkRuleVar = "CMAKE_CUDA_DEVICE_LINK_LIBRARY";
std::string extraFlags;
this->LocalGenerator->AppendFlags(
extraFlags, this->GeneratorTarget->GetProperty("LINK_FLAGS"));
this->WriteDeviceLibraryRules(linkRuleVar, extraFlags, relink);
}
}
std::string linkLanguage =
this->GeneratorTarget->GetLinkerLanguage(this->ConfigName);
std::string linkRuleVar = "CMAKE_";
linkRuleVar += linkLanguage;
linkRuleVar += "_CREATE_SHARED_LIBRARY";
std::string extraFlags;
this->LocalGenerator->AppendFlags(
extraFlags, this->GeneratorTarget->GetProperty("LINK_FLAGS"));
std::string linkFlagsConfig = "LINK_FLAGS_";
linkFlagsConfig += cmSystemTools::UpperCase(this->ConfigName);
this->LocalGenerator->AppendFlags(
extraFlags, this->GeneratorTarget->GetProperty(linkFlagsConfig));
this->LocalGenerator->AddConfigVariableFlags(
extraFlags, "CMAKE_SHARED_LINKER_FLAGS", this->ConfigName);
CM_AUTO_PTR<cmLinkLineComputer> linkLineComputer(
this->CreateLinkLineComputer(
this->LocalGenerator,
this->LocalGenerator->GetStateSnapshot().GetDirectory()));
this->AddModuleDefinitionFlag(linkLineComputer.get(), extraFlags);
if (this->GeneratorTarget->GetPropertyAsBool("LINK_WHAT_YOU_USE")) {
this->LocalGenerator->AppendFlags(extraFlags, " -Wl,--no-as-needed");
}
this->WriteLibraryRules(linkRuleVar, extraFlags, relink);
}
void cmMakefileLibraryTargetGenerator::WriteModuleLibraryRules(bool relink)
{
if (!relink) {
const std::string cuda_lang("CUDA");
cmGeneratorTarget::LinkClosure const* closure =
this->GeneratorTarget->GetLinkClosure(this->ConfigName);
const bool hasCUDA =
(std::find(closure->Languages.begin(), closure->Languages.end(),
cuda_lang) != closure->Languages.end());
if (hasCUDA) {
std::string linkRuleVar = "CMAKE_CUDA_DEVICE_LINK_LIBRARY";
std::string extraFlags;
this->LocalGenerator->AppendFlags(
extraFlags, this->GeneratorTarget->GetProperty("LINK_FLAGS"));
this->WriteDeviceLibraryRules(linkRuleVar, extraFlags, relink);
}
}
std::string linkLanguage =
this->GeneratorTarget->GetLinkerLanguage(this->ConfigName);
std::string linkRuleVar = "CMAKE_";
linkRuleVar += linkLanguage;
linkRuleVar += "_CREATE_SHARED_MODULE";
std::string extraFlags;
this->LocalGenerator->AppendFlags(
extraFlags, this->GeneratorTarget->GetProperty("LINK_FLAGS"));
std::string linkFlagsConfig = "LINK_FLAGS_";
linkFlagsConfig += cmSystemTools::UpperCase(this->ConfigName);
this->LocalGenerator->AppendFlags(
extraFlags, this->GeneratorTarget->GetProperty(linkFlagsConfig));
this->LocalGenerator->AddConfigVariableFlags(
extraFlags, "CMAKE_MODULE_LINKER_FLAGS", this->ConfigName);
CM_AUTO_PTR<cmLinkLineComputer> linkLineComputer(
this->CreateLinkLineComputer(
this->LocalGenerator,
this->LocalGenerator->GetStateSnapshot().GetDirectory()));
this->AddModuleDefinitionFlag(linkLineComputer.get(), extraFlags);
this->WriteLibraryRules(linkRuleVar, extraFlags, relink);
}
void cmMakefileLibraryTargetGenerator::WriteFrameworkRules(bool relink)
{
std::string linkLanguage =
this->GeneratorTarget->GetLinkerLanguage(this->ConfigName);
std::string linkRuleVar = "CMAKE_";
linkRuleVar += linkLanguage;
linkRuleVar += "_CREATE_MACOSX_FRAMEWORK";
std::string extraFlags;
this->LocalGenerator->AppendFlags(
extraFlags, this->GeneratorTarget->GetProperty("LINK_FLAGS"));
std::string linkFlagsConfig = "LINK_FLAGS_";
linkFlagsConfig += cmSystemTools::UpperCase(this->ConfigName);
this->LocalGenerator->AppendFlags(
extraFlags, this->GeneratorTarget->GetProperty(linkFlagsConfig));
this->LocalGenerator->AddConfigVariableFlags(
extraFlags, "CMAKE_MACOSX_FRAMEWORK_LINKER_FLAGS", this->ConfigName);
this->WriteLibraryRules(linkRuleVar, extraFlags, relink);
}
void cmMakefileLibraryTargetGenerator::WriteDeviceLibraryRules(
const std::string& linkRuleVar, const std::string& extraFlags, bool relink)
{
#ifdef CMAKE_BUILD_WITH_CMAKE
// TODO: Merge the methods that call this method to avoid
// code duplication.
std::vector<std::string> commands;
// Build list of dependencies.
std::vector<std::string> depends;
this->AppendLinkDepends(depends);
// Get the language to use for linking this library.
std::string linkLanguage = "CUDA";
std::string const objExt =
this->Makefile->GetSafeDefinition("CMAKE_CUDA_OUTPUT_EXTENSION");
// Create set of linking flags.
std::string linkFlags;
this->LocalGenerator->AppendFlags(linkFlags, extraFlags);
// Get the name of the device object to generate.
std::string const targetOutputReal =
this->GeneratorTarget->ObjectDirectory + "cmake_device_link" + objExt;
this->DeviceLinkObject = targetOutputReal;
this->NumberOfProgressActions++;
if (!this->NoRuleMessages) {
cmLocalUnixMakefileGenerator3::EchoProgress progress;
this->MakeEchoProgress(progress);
// Add the link message.
std::string buildEcho = "Linking " + linkLanguage + " device code";
buildEcho += targetOutputReal;
this->LocalGenerator->AppendEcho(
commands, buildEcho, cmLocalUnixMakefileGenerator3::EchoLink, &progress);
}
// Clean files associated with this library.
std::vector<std::string> libCleanFiles;
libCleanFiles.push_back(this->LocalGenerator->MaybeConvertToRelativePath(
this->LocalGenerator->GetCurrentBinaryDirectory(), targetOutputReal));
// Determine whether a link script will be used.
bool useLinkScript = this->GlobalGenerator->GetUseLinkScript();
bool useResponseFileForObjects =
this->CheckUseResponseFileForObjects(linkLanguage);
bool const useResponseFileForLibs =
this->CheckUseResponseFileForLibraries(linkLanguage);
cmRulePlaceholderExpander::RuleVariables vars;
vars.Language = linkLanguage.c_str();
// Expand the rule variables.
std::vector<std::string> real_link_commands;
{
bool useWatcomQuote =
this->Makefile->IsOn(linkRuleVar + "_USE_WATCOM_QUOTE");
// Set path conversion for link script shells.
this->LocalGenerator->SetLinkScriptShell(useLinkScript);
// Collect up flags to link in needed libraries.
std::string linkLibs;
if (this->GeneratorTarget->GetType() != cmStateEnums::STATIC_LIBRARY) {
CM_AUTO_PTR<cmLinkLineComputer> linkLineComputer(
new cmLinkLineDeviceComputer(
this->LocalGenerator,
this->LocalGenerator->GetStateSnapshot().GetDirectory()));
linkLineComputer->SetForResponse(useResponseFileForLibs);
linkLineComputer->SetUseWatcomQuote(useWatcomQuote);
linkLineComputer->SetRelink(relink);
this->CreateLinkLibs(linkLineComputer.get(), linkLibs,
useResponseFileForLibs, depends);
}
// Construct object file lists that may be needed to expand the
// rule.
std::string buildObjs;
this->CreateObjectLists(useLinkScript, false, // useArchiveRules
useResponseFileForObjects, buildObjs, depends,
useWatcomQuote);
cmOutputConverter::OutputFormat output = (useWatcomQuote)
? cmOutputConverter::WATCOMQUOTE
: cmOutputConverter::SHELL;
std::string objectDir = this->GeneratorTarget->GetSupportDirectory();
objectDir = this->LocalGenerator->ConvertToOutputFormat(
this->LocalGenerator->MaybeConvertToRelativePath(
this->LocalGenerator->GetCurrentBinaryDirectory(), objectDir),
cmOutputConverter::SHELL);
std::string target = this->LocalGenerator->ConvertToOutputFormat(
this->LocalGenerator->MaybeConvertToRelativePath(
this->LocalGenerator->GetCurrentBinaryDirectory(), targetOutputReal),
output);
std::string targetFullPathCompilePDB = this->ComputeTargetCompilePDB();
std::string targetOutPathCompilePDB =
this->LocalGenerator->ConvertToOutputFormat(targetFullPathCompilePDB,
cmOutputConverter::SHELL);
vars.Objects = buildObjs.c_str();
vars.ObjectDir = objectDir.c_str();
vars.Target = target.c_str();
vars.LinkLibraries = linkLibs.c_str();
vars.ObjectsQuoted = buildObjs.c_str();
vars.LinkFlags = linkFlags.c_str();
vars.TargetCompilePDB = targetOutPathCompilePDB.c_str();
// Add language feature flags.
std::string langFlags;
this->AddFeatureFlags(langFlags, linkLanguage);
vars.LanguageCompileFlags = langFlags.c_str();
std::string launcher;
const char* val = this->LocalGenerator->GetRuleLauncher(
this->GeneratorTarget, "RULE_LAUNCH_LINK");
if (val && *val) {
launcher = val;
launcher += " ";
}
CM_AUTO_PTR<cmRulePlaceholderExpander> rulePlaceholderExpander(
this->LocalGenerator->CreateRulePlaceholderExpander());
// Construct the main link rule and expand placeholders.
rulePlaceholderExpander->SetTargetImpLib(targetOutputReal);
std::string linkRule = this->GetLinkRule(linkRuleVar);
cmSystemTools::ExpandListArgument(linkRule, real_link_commands);
// Expand placeholders.
for (std::vector<std::string>::iterator i = real_link_commands.begin();
i != real_link_commands.end(); ++i) {
*i = launcher + *i;
rulePlaceholderExpander->ExpandRuleVariables(this->LocalGenerator, *i,
vars);
}
// Restore path conversion to normal shells.
this->LocalGenerator->SetLinkScriptShell(false);
// Clean all the possible library names and symlinks.
this->CleanFiles.insert(this->CleanFiles.end(), libCleanFiles.begin(),
libCleanFiles.end());
}
std::vector<std::string> commands1;
// Optionally convert the build rule to use a script to avoid long
// command lines in the make shell.
if (useLinkScript) {
// Use a link script.
const char* name = (relink ? "drelink.txt" : "dlink.txt");
this->CreateLinkScript(name, real_link_commands, commands1, depends);
} else {
// No link script. Just use the link rule directly.
commands1 = real_link_commands;
}
this->LocalGenerator->CreateCDCommand(
commands1, this->Makefile->GetCurrentBinaryDirectory(),
this->LocalGenerator->GetBinaryDirectory());
commands.insert(commands.end(), commands1.begin(), commands1.end());
commands1.clear();
// Compute the list of outputs.
std::vector<std::string> outputs(1, targetOutputReal);
// Write the build rule.
this->WriteMakeRule(*this->BuildFileStream, CM_NULLPTR, outputs, depends,
commands, false);
// Write the main driver rule to build everything in this target.
this->WriteTargetDriverRule(targetOutputReal, relink);
#else
static_cast<void>(linkRuleVar);
static_cast<void>(extraFlags);
static_cast<void>(relink);
#endif
}
void cmMakefileLibraryTargetGenerator::WriteLibraryRules(
const std::string& linkRuleVar, const std::string& extraFlags, bool relink)
{
// TODO: Merge the methods that call this method to avoid
// code duplication.
std::vector<std::string> commands;
// Build list of dependencies.
std::vector<std::string> depends;
this->AppendLinkDepends(depends);
if (!this->DeviceLinkObject.empty()) {
depends.push_back(this->DeviceLinkObject);
}
// Get the language to use for linking this library.
std::string linkLanguage =
this->GeneratorTarget->GetLinkerLanguage(this->ConfigName);
// Make sure we have a link language.
if (linkLanguage.empty()) {
cmSystemTools::Error("Cannot determine link language for target \"",
this->GeneratorTarget->GetName().c_str(), "\".");
return;
}
// Create set of linking flags.
std::string linkFlags;
this->LocalGenerator->AppendFlags(linkFlags, extraFlags);
// Add OSX version flags, if any.
if (this->GeneratorTarget->GetType() == cmStateEnums::SHARED_LIBRARY ||
this->GeneratorTarget->GetType() == cmStateEnums::MODULE_LIBRARY) {
this->AppendOSXVerFlag(linkFlags, linkLanguage, "COMPATIBILITY", true);
this->AppendOSXVerFlag(linkFlags, linkLanguage, "CURRENT", false);
}
// Construct the name of the library.
std::string targetName;
std::string targetNameSO;
std::string targetNameReal;
std::string targetNameImport;
std::string targetNamePDB;
this->GeneratorTarget->GetLibraryNames(targetName, targetNameSO,
targetNameReal, targetNameImport,
targetNamePDB, this->ConfigName);
// Construct the full path version of the names.
std::string outpath;
std::string outpathImp;
if (this->GeneratorTarget->IsFrameworkOnApple()) {
outpath = this->GeneratorTarget->GetDirectory(this->ConfigName);
this->OSXBundleGenerator->CreateFramework(targetName, outpath);
outpath += "/";
} else if (this->GeneratorTarget->IsCFBundleOnApple()) {
outpath = this->GeneratorTarget->GetDirectory(this->ConfigName);
this->OSXBundleGenerator->CreateCFBundle(targetName, outpath);
outpath += "/";
} else if (relink) {
outpath = this->Makefile->GetCurrentBinaryDirectory();
outpath += cmake::GetCMakeFilesDirectory();
outpath += "/CMakeRelink.dir";
cmSystemTools::MakeDirectory(outpath.c_str());
outpath += "/";
if (!targetNameImport.empty()) {
outpathImp = outpath;
}
} else {
outpath = this->GeneratorTarget->GetDirectory(this->ConfigName);
cmSystemTools::MakeDirectory(outpath.c_str());
outpath += "/";
if (!targetNameImport.empty()) {
outpathImp = this->GeneratorTarget->GetDirectory(this->ConfigName, true);
cmSystemTools::MakeDirectory(outpathImp.c_str());
outpathImp += "/";
}
}
std::string compilePdbOutputPath =
this->GeneratorTarget->GetCompilePDBDirectory(this->ConfigName);
cmSystemTools::MakeDirectory(compilePdbOutputPath.c_str());
std::string pdbOutputPath =
this->GeneratorTarget->GetPDBDirectory(this->ConfigName);
cmSystemTools::MakeDirectory(pdbOutputPath.c_str());
pdbOutputPath += "/";
std::string targetFullPath = outpath + targetName;
std::string targetFullPathPDB = pdbOutputPath + targetNamePDB;
std::string targetFullPathSO = outpath + targetNameSO;
std::string targetFullPathReal = outpath + targetNameReal;
std::string targetFullPathImport = outpathImp + targetNameImport;
// Construct the output path version of the names for use in command
// arguments.
std::string targetOutPathPDB = this->LocalGenerator->ConvertToOutputFormat(
targetFullPathPDB, cmOutputConverter::SHELL);
std::string targetOutPath = this->LocalGenerator->ConvertToOutputFormat(
this->LocalGenerator->MaybeConvertToRelativePath(
this->LocalGenerator->GetCurrentBinaryDirectory(), targetFullPath),
cmOutputConverter::SHELL);
std::string targetOutPathSO = this->LocalGenerator->ConvertToOutputFormat(
this->LocalGenerator->MaybeConvertToRelativePath(
this->LocalGenerator->GetCurrentBinaryDirectory(), targetFullPathSO),
cmOutputConverter::SHELL);
std::string targetOutPathReal = this->LocalGenerator->ConvertToOutputFormat(
this->LocalGenerator->MaybeConvertToRelativePath(
this->LocalGenerator->GetCurrentBinaryDirectory(), targetFullPathReal),
cmOutputConverter::SHELL);
std::string targetOutPathImport =
this->LocalGenerator->ConvertToOutputFormat(
this->LocalGenerator->MaybeConvertToRelativePath(
this->LocalGenerator->GetCurrentBinaryDirectory(),
targetFullPathImport),
cmOutputConverter::SHELL);
this->NumberOfProgressActions++;
if (!this->NoRuleMessages) {
cmLocalUnixMakefileGenerator3::EchoProgress progress;
this->MakeEchoProgress(progress);
// Add the link message.
std::string buildEcho = "Linking ";
buildEcho += linkLanguage;
switch (this->GeneratorTarget->GetType()) {
case cmStateEnums::STATIC_LIBRARY:
buildEcho += " static library ";
break;
case cmStateEnums::SHARED_LIBRARY:
buildEcho += " shared library ";
break;
case cmStateEnums::MODULE_LIBRARY:
if (this->GeneratorTarget->IsCFBundleOnApple()) {
buildEcho += " CFBundle";
}
buildEcho += " shared module ";
break;
default:
buildEcho += " library ";
break;
}
buildEcho += targetOutPath;
this->LocalGenerator->AppendEcho(
commands, buildEcho, cmLocalUnixMakefileGenerator3::EchoLink, &progress);
}
// Clean files associated with this library.
std::vector<std::string> libCleanFiles;
libCleanFiles.push_back(this->LocalGenerator->MaybeConvertToRelativePath(
this->LocalGenerator->GetCurrentBinaryDirectory(), targetFullPathReal));
std::vector<std::string> commands1;
// Add a command to remove any existing files for this library.
// for static libs only
if (this->GeneratorTarget->GetType() == cmStateEnums::STATIC_LIBRARY) {
this->LocalGenerator->AppendCleanCommand(commands1, libCleanFiles,
this->GeneratorTarget, "target");
this->LocalGenerator->CreateCDCommand(
commands1, this->Makefile->GetCurrentBinaryDirectory(),
this->LocalGenerator->GetBinaryDirectory());
commands.insert(commands.end(), commands1.begin(), commands1.end());
commands1.clear();
}
if (targetName != targetNameReal) {
libCleanFiles.push_back(this->LocalGenerator->MaybeConvertToRelativePath(
this->LocalGenerator->GetCurrentBinaryDirectory(), targetFullPath));
}
if (targetNameSO != targetNameReal && targetNameSO != targetName) {
libCleanFiles.push_back(this->LocalGenerator->MaybeConvertToRelativePath(
this->LocalGenerator->GetCurrentBinaryDirectory(), targetFullPathSO));
}
if (!targetNameImport.empty()) {
libCleanFiles.push_back(this->LocalGenerator->MaybeConvertToRelativePath(
this->LocalGenerator->GetCurrentBinaryDirectory(),
targetFullPathImport));
std::string implib;
if (this->GeneratorTarget->GetImplibGNUtoMS(targetFullPathImport,
implib)) {
libCleanFiles.push_back(this->LocalGenerator->MaybeConvertToRelativePath(
this->LocalGenerator->GetCurrentBinaryDirectory(), implib));
}
}
// List the PDB for cleaning only when the whole target is
// cleaned. We do not want to delete the .pdb file just before
// linking the target.
this->CleanFiles.push_back(this->LocalGenerator->MaybeConvertToRelativePath(
this->LocalGenerator->GetCurrentBinaryDirectory(), targetFullPathPDB));
#ifdef _WIN32
// There may be a manifest file for this target. Add it to the
// clean set just in case.
if (this->GeneratorTarget->GetType() != cmStateEnums::STATIC_LIBRARY) {
libCleanFiles.push_back(this->LocalGenerator->MaybeConvertToRelativePath(
this->LocalGenerator->GetCurrentBinaryDirectory(),
(targetFullPath + ".manifest").c_str()));
}
#endif
// Add the pre-build and pre-link rules building but not when relinking.
if (!relink) {
this->LocalGenerator->AppendCustomCommands(
commands, this->GeneratorTarget->GetPreBuildCommands(),
this->GeneratorTarget, this->LocalGenerator->GetBinaryDirectory());
this->LocalGenerator->AppendCustomCommands(
commands, this->GeneratorTarget->GetPreLinkCommands(),
this->GeneratorTarget, this->LocalGenerator->GetBinaryDirectory());
}
// Determine whether a link script will be used.
bool useLinkScript = this->GlobalGenerator->GetUseLinkScript();
bool useResponseFileForObjects =
this->CheckUseResponseFileForObjects(linkLanguage);
bool const useResponseFileForLibs =
this->CheckUseResponseFileForLibraries(linkLanguage);
// For static libraries there might be archiving rules.
bool haveStaticLibraryRule = false;
std::vector<std::string> archiveCreateCommands;
std::vector<std::string> archiveAppendCommands;
std::vector<std::string> archiveFinishCommands;
std::string::size_type archiveCommandLimit = std::string::npos;
if (this->GeneratorTarget->GetType() == cmStateEnums::STATIC_LIBRARY) {
haveStaticLibraryRule = this->Makefile->IsDefinitionSet(linkRuleVar);
std::string arCreateVar = "CMAKE_";
arCreateVar += linkLanguage;
arCreateVar += "_ARCHIVE_CREATE";
arCreateVar = this->GeneratorTarget->GetFeatureSpecificLinkRuleVariable(
arCreateVar, this->ConfigName);
if (const char* rule = this->Makefile->GetDefinition(arCreateVar)) {
cmSystemTools::ExpandListArgument(rule, archiveCreateCommands);
}
std::string arAppendVar = "CMAKE_";
arAppendVar += linkLanguage;
arAppendVar += "_ARCHIVE_APPEND";
arAppendVar = this->GeneratorTarget->GetFeatureSpecificLinkRuleVariable(
arAppendVar, this->ConfigName);
if (const char* rule = this->Makefile->GetDefinition(arAppendVar)) {
cmSystemTools::ExpandListArgument(rule, archiveAppendCommands);
}
std::string arFinishVar = "CMAKE_";
arFinishVar += linkLanguage;
arFinishVar += "_ARCHIVE_FINISH";
arFinishVar = this->GeneratorTarget->GetFeatureSpecificLinkRuleVariable(
arFinishVar, this->ConfigName);
if (const char* rule = this->Makefile->GetDefinition(arFinishVar)) {
cmSystemTools::ExpandListArgument(rule, archiveFinishCommands);
}
}
// Decide whether to use archiving rules.
bool useArchiveRules = !haveStaticLibraryRule &&
!archiveCreateCommands.empty() && !archiveAppendCommands.empty();
if (useArchiveRules) {
// Archiving rules are always run with a link script.
useLinkScript = true;
// Archiving rules never use a response file.
useResponseFileForObjects = false;
// Limit the length of individual object lists to less than the
// 32K command line length limit on Windows. We could make this a
// platform file variable but this should work everywhere.
archiveCommandLimit = 30000;
}
// Expand the rule variables.
std::vector<std::string> real_link_commands;
{
bool useWatcomQuote =
this->Makefile->IsOn(linkRuleVar + "_USE_WATCOM_QUOTE");
// Set path conversion for link script shells.
this->LocalGenerator->SetLinkScriptShell(useLinkScript);
// Collect up flags to link in needed libraries.
std::string linkLibs;
if (this->GeneratorTarget->GetType() != cmStateEnums::STATIC_LIBRARY) {
CM_AUTO_PTR<cmLinkLineComputer> linkLineComputer(
this->CreateLinkLineComputer(
this->LocalGenerator,
this->LocalGenerator->GetStateSnapshot().GetDirectory()));
linkLineComputer->SetForResponse(useResponseFileForLibs);
linkLineComputer->SetUseWatcomQuote(useWatcomQuote);
linkLineComputer->SetRelink(relink);
this->CreateLinkLibs(linkLineComputer.get(), linkLibs,
useResponseFileForLibs, depends);
}
// Construct object file lists that may be needed to expand the
// rule.
std::string buildObjs;
this->CreateObjectLists(useLinkScript, useArchiveRules,
useResponseFileForObjects, buildObjs, depends,
useWatcomQuote);
if (!this->DeviceLinkObject.empty()) {
buildObjs += " " +
this->LocalGenerator->ConvertToOutputFormat(
this->LocalGenerator->MaybeConvertToRelativePath(
this->LocalGenerator->GetCurrentBinaryDirectory(),
this->DeviceLinkObject),
cmOutputConverter::SHELL);
}
// maybe create .def file from list of objects
this->GenDefFile(real_link_commands);
std::string manifests = this->GetManifests();
cmRulePlaceholderExpander::RuleVariables vars;
vars.TargetPDB = targetOutPathPDB.c_str();
// Setup the target version.
std::string targetVersionMajor;
std::string targetVersionMinor;
{
std::ostringstream majorStream;
std::ostringstream minorStream;
int major;
int minor;
this->GeneratorTarget->GetTargetVersion(major, minor);
majorStream << major;
minorStream << minor;
targetVersionMajor = majorStream.str();
targetVersionMinor = minorStream.str();
}
vars.TargetVersionMajor = targetVersionMajor.c_str();
vars.TargetVersionMinor = targetVersionMinor.c_str();
vars.CMTargetName = this->GeneratorTarget->GetName().c_str();
vars.CMTargetType =
cmState::GetTargetTypeName(this->GeneratorTarget->GetType());
vars.Language = linkLanguage.c_str();
vars.Objects = buildObjs.c_str();
std::string objectDir = this->GeneratorTarget->GetSupportDirectory();
objectDir = this->LocalGenerator->ConvertToOutputFormat(
this->LocalGenerator->MaybeConvertToRelativePath(
this->LocalGenerator->GetCurrentBinaryDirectory(), objectDir),
cmOutputConverter::SHELL);
vars.ObjectDir = objectDir.c_str();
cmOutputConverter::OutputFormat output = (useWatcomQuote)
? cmOutputConverter::WATCOMQUOTE
: cmOutputConverter::SHELL;
std::string target = this->LocalGenerator->ConvertToOutputFormat(
this->LocalGenerator->MaybeConvertToRelativePath(
this->LocalGenerator->GetCurrentBinaryDirectory(), targetFullPathReal),
output);
vars.Target = target.c_str();
vars.LinkLibraries = linkLibs.c_str();
vars.ObjectsQuoted = buildObjs.c_str();
if (this->GeneratorTarget->HasSOName(this->ConfigName)) {
vars.SONameFlag = this->Makefile->GetSONameFlag(linkLanguage);
vars.TargetSOName = targetNameSO.c_str();
}
vars.LinkFlags = linkFlags.c_str();
vars.Manifests = manifests.c_str();
// Compute the directory portion of the install_name setting.
std::string install_name_dir;
if (this->GeneratorTarget->GetType() == cmStateEnums::SHARED_LIBRARY) {
// Get the install_name directory for the build tree.
install_name_dir =
this->GeneratorTarget->GetInstallNameDirForBuildTree(this->ConfigName);
// Set the rule variable replacement value.
if (install_name_dir.empty()) {
vars.TargetInstallNameDir = "";
} else {
// Convert to a path for the native build tool.
install_name_dir = this->LocalGenerator->ConvertToOutputFormat(
install_name_dir, cmOutputConverter::SHELL);
vars.TargetInstallNameDir = install_name_dir.c_str();
}
}
// Add language feature flags.
std::string langFlags;
this->AddFeatureFlags(langFlags, linkLanguage);
this->LocalGenerator->AddArchitectureFlags(
langFlags, this->GeneratorTarget, linkLanguage, this->ConfigName);
vars.LanguageCompileFlags = langFlags.c_str();
std::string launcher;
const char* val = this->LocalGenerator->GetRuleLauncher(
this->GeneratorTarget, "RULE_LAUNCH_LINK");
if (val && *val) {
launcher = val;
launcher += " ";
}
CM_AUTO_PTR<cmRulePlaceholderExpander> rulePlaceholderExpander(
this->LocalGenerator->CreateRulePlaceholderExpander());
// Construct the main link rule and expand placeholders.
rulePlaceholderExpander->SetTargetImpLib(targetOutPathImport);
if (useArchiveRules) {
// Construct the individual object list strings.
std::vector<std::string> object_strings;
this->WriteObjectsStrings(object_strings, archiveCommandLimit);
// Create the archive with the first set of objects.
std::vector<std::string>::iterator osi = object_strings.begin();
{
vars.Objects = osi->c_str();
for (std::vector<std::string>::const_iterator i =
archiveCreateCommands.begin();
i != archiveCreateCommands.end(); ++i) {
std::string cmd = launcher + *i;
rulePlaceholderExpander->ExpandRuleVariables(this->LocalGenerator,
cmd, vars);
real_link_commands.push_back(cmd);
}
}
// Append to the archive with the other object sets.
for (++osi; osi != object_strings.end(); ++osi) {
vars.Objects = osi->c_str();
for (std::vector<std::string>::const_iterator i =
archiveAppendCommands.begin();
i != archiveAppendCommands.end(); ++i) {
std::string cmd = launcher + *i;
rulePlaceholderExpander->ExpandRuleVariables(this->LocalGenerator,
cmd, vars);
real_link_commands.push_back(cmd);
}
}
// Finish the archive.
vars.Objects = "";
for (std::vector<std::string>::const_iterator i =
archiveFinishCommands.begin();
i != archiveFinishCommands.end(); ++i) {
std::string cmd = launcher + *i;
rulePlaceholderExpander->ExpandRuleVariables(this->LocalGenerator, cmd,
vars);
// If there is no ranlib the command will be ":". Skip it.
if (!cmd.empty() && cmd[0] != ':') {
real_link_commands.push_back(cmd);
}
}
} else {
// Get the set of commands.
std::string linkRule = this->GetLinkRule(linkRuleVar);
cmSystemTools::ExpandListArgument(linkRule, real_link_commands);
if (this->GeneratorTarget->GetPropertyAsBool("LINK_WHAT_YOU_USE") &&
(this->GeneratorTarget->GetType() == cmStateEnums::SHARED_LIBRARY)) {
std::string cmakeCommand = this->LocalGenerator->ConvertToOutputFormat(
cmSystemTools::GetCMakeCommand(), cmLocalGenerator::SHELL);
cmakeCommand += " -E __run_iwyu --lwyu=";
cmakeCommand += targetOutPathReal;
real_link_commands.push_back(cmakeCommand);
}
// Expand placeholders.
for (std::vector<std::string>::iterator i = real_link_commands.begin();
i != real_link_commands.end(); ++i) {
*i = launcher + *i;
rulePlaceholderExpander->ExpandRuleVariables(this->LocalGenerator, *i,
vars);
}
}
// Restore path conversion to normal shells.
this->LocalGenerator->SetLinkScriptShell(false);
}
// Optionally convert the build rule to use a script to avoid long
// command lines in the make shell.
if (useLinkScript) {
// Use a link script.
const char* name = (relink ? "relink.txt" : "link.txt");
this->CreateLinkScript(name, real_link_commands, commands1, depends);
} else {
// No link script. Just use the link rule directly.
commands1 = real_link_commands;
}
this->LocalGenerator->CreateCDCommand(
commands1, this->Makefile->GetCurrentBinaryDirectory(),
this->LocalGenerator->GetBinaryDirectory());
commands.insert(commands.end(), commands1.begin(), commands1.end());
commands1.clear();
// Add a rule to create necessary symlinks for the library.
// Frameworks are handled by cmOSXBundleGenerator.
if (targetOutPath != targetOutPathReal &&
!this->GeneratorTarget->IsFrameworkOnApple()) {
std::string symlink = "$(CMAKE_COMMAND) -E cmake_symlink_library ";
symlink += targetOutPathReal;
symlink += " ";
symlink += targetOutPathSO;
symlink += " ";
symlink += targetOutPath;
commands1.push_back(symlink);
this->LocalGenerator->CreateCDCommand(
commands1, this->Makefile->GetCurrentBinaryDirectory(),
this->LocalGenerator->GetBinaryDirectory());
commands.insert(commands.end(), commands1.begin(), commands1.end());
commands1.clear();
}
// Add the post-build rules when building but not when relinking.
if (!relink) {
this->LocalGenerator->AppendCustomCommands(
commands, this->GeneratorTarget->GetPostBuildCommands(),
this->GeneratorTarget, this->LocalGenerator->GetBinaryDirectory());
}
// Compute the list of outputs.
std::vector<std::string> outputs(1, targetFullPathReal);
if (targetNameSO != targetNameReal) {
outputs.push_back(targetFullPathSO);
}
if (targetName != targetNameSO && targetName != targetNameReal) {
outputs.push_back(targetFullPath);
}
// Write the build rule.
this->WriteMakeRule(*this->BuildFileStream, CM_NULLPTR, outputs, depends,
commands, false);
// Write the main driver rule to build everything in this target.
this->WriteTargetDriverRule(targetFullPath, relink);
// Clean all the possible library names and symlinks.
this->CleanFiles.insert(this->CleanFiles.end(), libCleanFiles.begin(),
libCleanFiles.end());
}