Files
CMake/Source/cmMakefileExecutableTargetGenerator.cxx
Robert Maynard 850ef90a66 CUDA: Honor CUDA_RESOLVE_DEVICE_SYMBOLS for more target types
`CUDA_RESOLVE_DEVICE_SYMBOLS` can be used with shared, module, and
executable target types.  This relaxation is to allow for better
interoperability with linkers that automatically do CUDA device symbol
resolution and have no way to disable it.
2019-02-05 11:09:48 -05:00

708 lines
26 KiB
C++

/* Distributed under the OSI-approved BSD 3-Clause License. See accompanying
file Copyright.txt or https://cmake.org/licensing for details. */
#include "cmMakefileExecutableTargetGenerator.h"
#include <algorithm>
#include <memory> // IWYU pragma: keep
#include <sstream>
#include <string>
#include <utility>
#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"
cmMakefileExecutableTargetGenerator::cmMakefileExecutableTargetGenerator(
cmGeneratorTarget* target)
: cmMakefileTargetGenerator(target)
{
this->CustomCommandDriver = OnDepends;
this->GeneratorTarget->GetExecutableNames(
this->TargetNameOut, this->TargetNameReal, this->TargetNameImport,
this->TargetNamePDB, this->ConfigName);
this->OSXBundleGenerator =
new cmOSXBundleGenerator(target, this->ConfigName);
this->OSXBundleGenerator->SetMacContentFolders(&this->MacContentFolders);
}
cmMakefileExecutableTargetGenerator::~cmMakefileExecutableTargetGenerator()
{
delete this->OSXBundleGenerator;
}
void cmMakefileExecutableTargetGenerator::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 device link rules
this->WriteDeviceExecutableRule(false);
// write the link rules
this->WriteExecutableRule(false);
if (this->GeneratorTarget->NeedRelinkBeforeInstall(this->ConfigName)) {
// Write rules to link an installable version of the target.
this->WriteExecutableRule(true);
}
// 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 cmMakefileExecutableTargetGenerator::WriteDeviceExecutableRule(
bool relink)
{
#ifdef CMAKE_BUILD_WITH_CMAKE
if (!this->GlobalGenerator->GetLanguageEnabled("CUDA")) {
return;
}
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());
bool doDeviceLinking = true;
if (const char* resolveDeviceSymbols =
this->GeneratorTarget->GetProperty("CUDA_RESOLVE_DEVICE_SYMBOLS")) {
doDeviceLinking = cmSystemTools::IsOn(resolveDeviceSymbols);
}
if (!hasCUDA || !doDeviceLinking) {
return;
}
std::vector<std::string> commands;
// Get the language to use for linking this library.
std::string linkLanguage = "CUDA";
std::string const objExt =
this->Makefile->GetSafeDefinition("CMAKE_CUDA_OUTPUT_EXTENSION");
// Build list of dependencies.
std::vector<std::string> depends;
this->AppendLinkDepends(depends, linkLanguage);
// 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 ";
buildEcho += linkLanguage;
buildEcho += " device code ";
buildEcho += this->LocalGenerator->ConvertToOutputFormat(
this->LocalGenerator->MaybeConvertToRelativePath(
this->LocalGenerator->GetCurrentBinaryDirectory(),
this->DeviceLinkObject),
cmOutputConverter::SHELL);
this->LocalGenerator->AppendEcho(
commands, buildEcho, cmLocalUnixMakefileGenerator3::EchoLink, &progress);
}
// Build a list of compiler flags and linker flags.
std::string flags;
std::string linkFlags;
// Add flags to create an executable.
// Add symbol export flags if necessary.
if (this->GeneratorTarget->IsExecutableWithExports()) {
std::string export_flag_var = "CMAKE_EXE_EXPORTS_";
export_flag_var += linkLanguage;
export_flag_var += "_FLAG";
this->LocalGenerator->AppendFlags(
linkFlags, this->Makefile->GetDefinition(export_flag_var));
}
this->LocalGenerator->AppendFlags(linkFlags,
this->LocalGenerator->GetLinkLibsCMP0065(
linkLanguage, *this->GeneratorTarget));
// Add language feature flags.
this->LocalGenerator->AddLanguageFlagsForLinking(
flags, this->GeneratorTarget, linkLanguage, this->ConfigName);
this->LocalGenerator->AddArchitectureFlags(flags, this->GeneratorTarget,
linkLanguage, this->ConfigName);
// Add target-specific linker flags.
this->GetTargetLinkFlags(linkFlags, linkLanguage);
// Construct a list of files associated with this executable that
// may need to be cleaned.
std::vector<std::string> exeCleanFiles;
exeCleanFiles.push_back(this->LocalGenerator->MaybeConvertToRelativePath(
this->LocalGenerator->GetCurrentBinaryDirectory(), targetOutputReal));
// Determine whether a link script will be used.
bool useLinkScript = this->GlobalGenerator->GetUseLinkScript();
// Construct the main link rule.
std::vector<std::string> real_link_commands;
const std::string linkRuleVar = "CMAKE_CUDA_DEVICE_LINK_EXECUTABLE";
const std::string linkRule = this->GetLinkRule(linkRuleVar);
std::vector<std::string> commands1;
cmSystemTools::ExpandListArgument(linkRule, real_link_commands);
bool useResponseFileForObjects =
this->CheckUseResponseFileForObjects(linkLanguage);
bool const useResponseFileForLibs =
this->CheckUseResponseFileForLibraries(linkLanguage);
// Expand the rule variables.
{
bool useWatcomQuote =
this->Makefile->IsOn(linkRuleVar + "_USE_WATCOM_QUOTE");
// Set path conversion for link script shells.
this->LocalGenerator->SetLinkScriptShell(useLinkScript);
std::unique_ptr<cmLinkLineComputer> linkLineComputer(
new cmLinkLineDeviceComputer(
this->LocalGenerator,
this->LocalGenerator->GetStateSnapshot().GetDirectory()));
linkLineComputer->SetForResponse(useResponseFileForLibs);
linkLineComputer->SetUseWatcomQuote(useWatcomQuote);
linkLineComputer->SetRelink(relink);
// Collect up flags to link in needed libraries.
std::string linkLibs;
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, useResponseFileForObjects,
buildObjs, depends, useWatcomQuote);
cmRulePlaceholderExpander::RuleVariables vars;
std::string objectDir = this->GeneratorTarget->GetSupportDirectory();
objectDir = this->LocalGenerator->ConvertToOutputFormat(
this->LocalGenerator->MaybeConvertToRelativePath(
this->LocalGenerator->GetCurrentBinaryDirectory(), objectDir),
cmOutputConverter::SHELL);
cmOutputConverter::OutputFormat output = (useWatcomQuote)
? cmOutputConverter::WATCOMQUOTE
: 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.Language = linkLanguage.c_str();
vars.Objects = buildObjs.c_str();
vars.ObjectDir = objectDir.c_str();
vars.Target = target.c_str();
vars.LinkLibraries = linkLibs.c_str();
vars.Flags = flags.c_str();
vars.LinkFlags = linkFlags.c_str();
vars.TargetCompilePDB = targetOutPathCompilePDB.c_str();
std::string launcher;
const char* val = this->LocalGenerator->GetRuleLauncher(
this->GeneratorTarget, "RULE_LAUNCH_LINK");
if (val && *val) {
launcher = val;
launcher += " ";
}
std::unique_ptr<cmRulePlaceholderExpander> rulePlaceholderExpander(
this->LocalGenerator->CreateRulePlaceholderExpander());
// Expand placeholders in the commands.
rulePlaceholderExpander->SetTargetImpLib(targetOutputReal);
for (std::string& real_link_command : real_link_commands) {
real_link_command = launcher + real_link_command;
rulePlaceholderExpander->ExpandRuleVariables(this->LocalGenerator,
real_link_command, 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 ? "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();
// Write the build rule.
this->LocalGenerator->WriteMakeRule(*this->BuildFileStream, nullptr,
targetOutputReal, depends, commands,
false);
// Write the main driver rule to build everything in this target.
this->WriteTargetDriverRule(targetOutputReal, relink);
// Clean all the possible executable names and symlinks.
this->CleanFiles.insert(this->CleanFiles.end(), exeCleanFiles.begin(),
exeCleanFiles.end());
#else
static_cast<void>(relink);
#endif
}
void cmMakefileExecutableTargetGenerator::WriteExecutableRule(bool relink)
{
std::vector<std::string> commands;
// Get the name of the executable to generate.
std::string targetName;
std::string targetNameReal;
std::string targetNameImport;
std::string targetNamePDB;
this->GeneratorTarget->GetExecutableNames(targetName, targetNameReal,
targetNameImport, targetNamePDB,
this->ConfigName);
// Construct the full path version of the names.
std::string outpath = this->GeneratorTarget->GetDirectory(this->ConfigName);
if (this->GeneratorTarget->IsAppBundleOnApple()) {
this->OSXBundleGenerator->CreateAppBundle(targetName, outpath);
}
outpath += "/";
std::string outpathImp;
if (relink) {
outpath = this->Makefile->GetCurrentBinaryDirectory();
outpath += "/CMakeFiles";
outpath += "/CMakeRelink.dir";
cmSystemTools::MakeDirectory(outpath);
outpath += "/";
if (!targetNameImport.empty()) {
outpathImp = outpath;
}
} else {
cmSystemTools::MakeDirectory(outpath);
if (!targetNameImport.empty()) {
outpathImp = this->GeneratorTarget->GetDirectory(
this->ConfigName, cmStateEnums::ImportLibraryArtifact);
cmSystemTools::MakeDirectory(outpathImp);
outpathImp += "/";
}
}
std::string compilePdbOutputPath =
this->GeneratorTarget->GetCompilePDBDirectory(this->ConfigName);
cmSystemTools::MakeDirectory(compilePdbOutputPath);
std::string pdbOutputPath =
this->GeneratorTarget->GetPDBDirectory(this->ConfigName);
cmSystemTools::MakeDirectory(pdbOutputPath);
pdbOutputPath += "/";
std::string targetFullPath = outpath + targetName;
std::string targetFullPathReal = outpath + targetNameReal;
std::string targetFullPathPDB = pdbOutputPath + targetNamePDB;
std::string targetFullPathImport = outpathImp + targetNameImport;
std::string targetOutPathPDB = this->LocalGenerator->ConvertToOutputFormat(
targetFullPathPDB, cmOutputConverter::SHELL);
// Convert to the output path to use in constructing commands.
std::string targetOutPath = this->LocalGenerator->ConvertToOutputFormat(
this->LocalGenerator->MaybeConvertToRelativePath(
this->LocalGenerator->GetCurrentBinaryDirectory(), targetFullPath),
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);
// Get the language to use for linking this executable.
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;
}
// Build list of dependencies.
std::vector<std::string> depends;
this->AppendLinkDepends(depends, linkLanguage);
if (!this->DeviceLinkObject.empty()) {
depends.push_back(this->DeviceLinkObject);
}
this->NumberOfProgressActions++;
if (!this->NoRuleMessages) {
cmLocalUnixMakefileGenerator3::EchoProgress progress;
this->MakeEchoProgress(progress);
// Add the link message.
std::string buildEcho = "Linking ";
buildEcho += linkLanguage;
buildEcho += " executable ";
buildEcho += targetOutPath;
this->LocalGenerator->AppendEcho(
commands, buildEcho, cmLocalUnixMakefileGenerator3::EchoLink, &progress);
}
// Build a list of compiler flags and linker flags.
std::string flags;
std::string linkFlags;
// Add flags to create an executable.
this->LocalGenerator->AddConfigVariableFlags(
linkFlags, "CMAKE_EXE_LINKER_FLAGS", this->ConfigName);
if (this->GeneratorTarget->GetPropertyAsBool("WIN32_EXECUTABLE")) {
this->LocalGenerator->AppendFlags(
linkFlags, this->Makefile->GetDefinition("CMAKE_CREATE_WIN32_EXE"));
} else {
this->LocalGenerator->AppendFlags(
linkFlags, this->Makefile->GetDefinition("CMAKE_CREATE_CONSOLE_EXE"));
}
// Add symbol export flags if necessary.
if (this->GeneratorTarget->IsExecutableWithExports()) {
std::string export_flag_var = "CMAKE_EXE_EXPORTS_";
export_flag_var += linkLanguage;
export_flag_var += "_FLAG";
this->LocalGenerator->AppendFlags(
linkFlags, this->Makefile->GetDefinition(export_flag_var));
}
this->LocalGenerator->AppendFlags(linkFlags,
this->LocalGenerator->GetLinkLibsCMP0065(
linkLanguage, *this->GeneratorTarget));
if (this->GeneratorTarget->GetPropertyAsBool("LINK_WHAT_YOU_USE")) {
this->LocalGenerator->AppendFlags(linkFlags, " -Wl,--no-as-needed");
}
// Add language feature flags.
this->LocalGenerator->AddLanguageFlagsForLinking(
flags, this->GeneratorTarget, linkLanguage, this->ConfigName);
this->LocalGenerator->AddArchitectureFlags(flags, this->GeneratorTarget,
linkLanguage, this->ConfigName);
// Add target-specific linker flags.
this->GetTargetLinkFlags(linkFlags, linkLanguage);
{
std::unique_ptr<cmLinkLineComputer> linkLineComputer(
this->CreateLinkLineComputer(
this->LocalGenerator,
this->LocalGenerator->GetStateSnapshot().GetDirectory()));
this->AddModuleDefinitionFlag(linkLineComputer.get(), linkFlags);
}
this->LocalGenerator->AppendIPOLinkerFlags(linkFlags, this->GeneratorTarget,
this->ConfigName, linkLanguage);
// Construct a list of files associated with this executable that
// may need to be cleaned.
std::vector<std::string> exeCleanFiles;
exeCleanFiles.push_back(this->LocalGenerator->MaybeConvertToRelativePath(
this->LocalGenerator->GetCurrentBinaryDirectory(), targetFullPath));
#ifdef _WIN32
// There may be a manifest file for this target. Add it to the
// clean set just in case.
exeCleanFiles.push_back(this->LocalGenerator->MaybeConvertToRelativePath(
this->LocalGenerator->GetCurrentBinaryDirectory(),
targetFullPath + ".manifest"));
#endif
if (targetNameReal != targetName) {
exeCleanFiles.push_back(this->LocalGenerator->MaybeConvertToRelativePath(
this->LocalGenerator->GetCurrentBinaryDirectory(), targetFullPathReal));
}
if (!targetNameImport.empty()) {
exeCleanFiles.push_back(this->LocalGenerator->MaybeConvertToRelativePath(
this->LocalGenerator->GetCurrentBinaryDirectory(),
targetFullPathImport));
std::string implib;
if (this->GeneratorTarget->GetImplibGNUtoMS(
this->ConfigName, targetFullPathImport, implib)) {
exeCleanFiles.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));
// 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();
// Construct the main link rule.
std::vector<std::string> real_link_commands;
std::string linkRuleVar = "CMAKE_";
linkRuleVar += linkLanguage;
linkRuleVar += "_LINK_EXECUTABLE";
std::string linkRule = this->GetLinkRule(linkRuleVar);
std::vector<std::string> commands1;
cmSystemTools::ExpandListArgument(linkRule, real_link_commands);
if (this->GeneratorTarget->IsExecutableWithExports()) {
// If a separate rule for creating an import library is specified
// add it now.
std::string implibRuleVar = "CMAKE_";
implibRuleVar += linkLanguage;
implibRuleVar += "_CREATE_IMPORT_LIBRARY";
if (const char* rule = this->Makefile->GetDefinition(implibRuleVar)) {
cmSystemTools::ExpandListArgument(rule, real_link_commands);
}
}
bool useResponseFileForObjects =
this->CheckUseResponseFileForObjects(linkLanguage);
bool const useResponseFileForLibs =
this->CheckUseResponseFileForLibraries(linkLanguage);
// Expand the rule variables.
{
bool useWatcomQuote =
this->Makefile->IsOn(linkRuleVar + "_USE_WATCOM_QUOTE");
// Set path conversion for link script shells.
this->LocalGenerator->SetLinkScriptShell(useLinkScript);
std::unique_ptr<cmLinkLineComputer> linkLineComputer(
this->CreateLinkLineComputer(
this->LocalGenerator,
this->LocalGenerator->GetStateSnapshot().GetDirectory()));
linkLineComputer->SetForResponse(useResponseFileForLibs);
linkLineComputer->SetUseWatcomQuote(useWatcomQuote);
linkLineComputer->SetRelink(relink);
// Collect up flags to link in needed libraries.
std::string linkLibs;
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, 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.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.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.LinkLibraries = linkLibs.c_str();
vars.Flags = flags.c_str();
vars.LinkFlags = linkFlags.c_str();
vars.Manifests = manifests.c_str();
if (this->GeneratorTarget->GetPropertyAsBool("LINK_WHAT_YOU_USE")) {
std::string cmakeCommand = this->LocalGenerator->ConvertToOutputFormat(
cmSystemTools::GetCMakeCommand(), cmLocalGenerator::SHELL);
cmakeCommand += " -E __run_co_compile --lwyu=";
cmakeCommand += targetOutPathReal;
real_link_commands.push_back(std::move(cmakeCommand));
}
std::string launcher;
const char* val = this->LocalGenerator->GetRuleLauncher(
this->GeneratorTarget, "RULE_LAUNCH_LINK");
if (val && *val) {
launcher = val;
launcher += " ";
}
std::unique_ptr<cmRulePlaceholderExpander> rulePlaceholderExpander(
this->LocalGenerator->CreateRulePlaceholderExpander());
// Expand placeholders in the commands.
rulePlaceholderExpander->SetTargetImpLib(targetOutPathImport);
for (std::string& real_link_command : real_link_commands) {
real_link_command = launcher + real_link_command;
rulePlaceholderExpander->ExpandRuleVariables(this->LocalGenerator,
real_link_command, 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.
if (targetOutPath != targetOutPathReal) {
std::string symlink = "$(CMAKE_COMMAND) -E cmake_symlink_executable ";
symlink += targetOutPathReal;
symlink += " ";
symlink += targetOutPath;
commands1.push_back(std::move(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());
}
// Write the build rule.
this->LocalGenerator->WriteMakeRule(*this->BuildFileStream, nullptr,
targetFullPathReal, depends, commands,
false);
// The symlink name for the target should depend on the real target
// so if the target version changes it rebuilds and recreates the
// symlink.
if (targetFullPath != targetFullPathReal) {
depends.clear();
commands.clear();
depends.push_back(targetFullPathReal);
this->LocalGenerator->WriteMakeRule(*this->BuildFileStream, nullptr,
targetFullPath, depends, commands,
false);
}
// Write the main driver rule to build everything in this target.
this->WriteTargetDriverRule(targetFullPath, relink);
// Clean all the possible executable names and symlinks.
this->CleanFiles.insert(this->CleanFiles.end(), exeCleanFiles.begin(),
exeCleanFiles.end());
}