CMake/Source/cmMakefileTargetGenerator.cxx

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/*============================================================================
CMake - Cross Platform Makefile Generator
Copyright 2000-2009 Kitware, Inc., Insight Software Consortium
Distributed under the OSI-approved BSD License (the "License");
see accompanying file Copyright.txt for details.
This software is distributed WITHOUT ANY WARRANTY; without even the
implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
See the License for more information.
============================================================================*/
#include "cmMakefileTargetGenerator.h"
#include "cmAlgorithms.h"
#include "cmComputeLinkInformation.h"
#include "cmCustomCommand.h"
#include "cmCustomCommandGenerator.h"
#include "cmGeneratedFileStream.h"
#include "cmGeneratorExpression.h"
#include "cmGeneratorTarget.h"
#include "cmGlobalUnixMakefileGenerator3.h"
#include "cmLocalGenerator.h"
#include "cmLocalUnixMakefileGenerator3.h"
#include "cmMakefile.h"
#include "cmMakefileExecutableTargetGenerator.h"
#include "cmMakefileLibraryTargetGenerator.h"
#include "cmMakefileUtilityTargetGenerator.h"
#include "cmOutputConverter.h"
#include "cmSourceFile.h"
#include "cmState.h"
#include "cmSystemTools.h"
#include "cm_auto_ptr.hxx"
#include "cmake.h"
#include <algorithm>
#include <ctype.h>
#include <sstream>
#include <stdio.h>
#include <utility>
#ifndef _WIN32
#include <unistd.h>
#endif
cmMakefileTargetGenerator::cmMakefileTargetGenerator(cmGeneratorTarget* target)
: cmCommonTargetGenerator(target)
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, OSXBundleGenerator(CM_NULLPTR)
, MacOSXContentGenerator(CM_NULLPTR)
{
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this->BuildFileStream = CM_NULLPTR;
this->InfoFileStream = CM_NULLPTR;
this->FlagFileStream = CM_NULLPTR;
this->CustomCommandDriver = OnBuild;
this->LocalGenerator =
static_cast<cmLocalUnixMakefileGenerator3*>(target->GetLocalGenerator());
this->GlobalGenerator = static_cast<cmGlobalUnixMakefileGenerator3*>(
this->LocalGenerator->GetGlobalGenerator());
cmake* cm = this->GlobalGenerator->GetCMakeInstance();
this->NoRuleMessages = false;
if (const char* ruleStatus =
cm->GetState()->GetGlobalProperty("RULE_MESSAGES")) {
this->NoRuleMessages = cmSystemTools::IsOff(ruleStatus);
}
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MacOSXContentGenerator = new MacOSXContentGeneratorType(this);
}
cmMakefileTargetGenerator::~cmMakefileTargetGenerator()
{
delete MacOSXContentGenerator;
}
cmMakefileTargetGenerator* cmMakefileTargetGenerator::New(
cmGeneratorTarget* tgt)
{
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cmMakefileTargetGenerator* result = CM_NULLPTR;
switch (tgt->GetType()) {
case cmState::EXECUTABLE:
result = new cmMakefileExecutableTargetGenerator(tgt);
break;
case cmState::STATIC_LIBRARY:
case cmState::SHARED_LIBRARY:
case cmState::MODULE_LIBRARY:
case cmState::OBJECT_LIBRARY:
result = new cmMakefileLibraryTargetGenerator(tgt);
break;
case cmState::UTILITY:
result = new cmMakefileUtilityTargetGenerator(tgt);
break;
default:
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return result;
// break; /* unreachable */
}
return result;
}
void cmMakefileTargetGenerator::CreateRuleFile()
{
// Create a directory for this target.
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this->TargetBuildDirectory =
this->LocalGenerator->GetTargetDirectory(this->GeneratorTarget);
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this->TargetBuildDirectoryFull =
this->LocalGenerator->ConvertToFullPath(this->TargetBuildDirectory);
cmSystemTools::MakeDirectory(this->TargetBuildDirectoryFull.c_str());
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// Construct the rule file name.
this->BuildFileName = this->TargetBuildDirectory;
this->BuildFileName += "/build.make";
this->BuildFileNameFull = this->TargetBuildDirectoryFull;
this->BuildFileNameFull += "/build.make";
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// Construct the rule file name.
this->ProgressFileNameFull = this->TargetBuildDirectoryFull;
this->ProgressFileNameFull += "/progress.make";
// reset the progress count
this->NumberOfProgressActions = 0;
// Open the rule file. This should be copy-if-different because the
// rules may depend on this file itself.
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this->BuildFileStream =
new cmGeneratedFileStream(this->BuildFileNameFull.c_str());
this->BuildFileStream->SetCopyIfDifferent(true);
if (!this->BuildFileStream) {
return;
}
this->LocalGenerator->WriteDisclaimer(*this->BuildFileStream);
if (this->GlobalGenerator->AllowDeleteOnError()) {
std::vector<std::string> no_depends;
std::vector<std::string> no_commands;
this->LocalGenerator->WriteMakeRule(
*this->BuildFileStream, "Delete rule output on recipe failure.",
".DELETE_ON_ERROR", no_depends, no_commands, false);
}
this->LocalGenerator->WriteSpecialTargetsTop(*this->BuildFileStream);
}
void cmMakefileTargetGenerator::WriteTargetBuildRules()
{
const std::string& config =
this->Makefile->GetSafeDefinition("CMAKE_BUILD_TYPE");
// write the custom commands for this target
// Look for files registered for cleaning in this directory.
if (const char* additional_clean_files =
this->Makefile->GetProperty("ADDITIONAL_MAKE_CLEAN_FILES")) {
cmGeneratorExpression ge;
CM_AUTO_PTR<cmCompiledGeneratorExpression> cge =
ge.Parse(additional_clean_files);
cmSystemTools::ExpandListArgument(
cge->Evaluate(this->LocalGenerator, config, false, this->GeneratorTarget,
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CM_NULLPTR, CM_NULLPTR),
this->CleanFiles);
}
// add custom commands to the clean rules?
const char* clean_no_custom = this->Makefile->GetProperty("CLEAN_NO_CUSTOM");
bool clean = cmSystemTools::IsOff(clean_no_custom);
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// First generate the object rule files. Save a list of all object
// files for this target.
std::vector<cmSourceFile const*> customCommands;
this->GeneratorTarget->GetCustomCommands(customCommands, config);
for (std::vector<cmSourceFile const*>::const_iterator si =
customCommands.begin();
si != customCommands.end(); ++si) {
cmCustomCommandGenerator ccg(*(*si)->GetCustomCommand(), this->ConfigName,
this->LocalGenerator);
this->GenerateCustomRuleFile(ccg);
if (clean) {
const std::vector<std::string>& outputs = ccg.GetOutputs();
for (std::vector<std::string>::const_iterator o = outputs.begin();
o != outputs.end(); ++o) {
this->CleanFiles.push_back(this->Convert(
*o, cmOutputConverter::START_OUTPUT, cmOutputConverter::UNCHANGED));
}
}
}
std::vector<cmSourceFile const*> headerSources;
this->GeneratorTarget->GetHeaderSources(headerSources, config);
this->OSXBundleGenerator->GenerateMacOSXContentStatements(
headerSources, this->MacOSXContentGenerator);
std::vector<cmSourceFile const*> extraSources;
this->GeneratorTarget->GetExtraSources(extraSources, config);
this->OSXBundleGenerator->GenerateMacOSXContentStatements(
extraSources, this->MacOSXContentGenerator);
std::vector<cmSourceFile const*> externalObjects;
this->GeneratorTarget->GetExternalObjects(externalObjects, config);
for (std::vector<cmSourceFile const*>::const_iterator si =
externalObjects.begin();
si != externalObjects.end(); ++si) {
this->ExternalObjects.push_back((*si)->GetFullPath());
}
std::vector<cmSourceFile const*> objectSources;
this->GeneratorTarget->GetObjectSources(objectSources, config);
for (std::vector<cmSourceFile const*>::const_iterator si =
objectSources.begin();
si != objectSources.end(); ++si) {
// Generate this object file's rule file.
this->WriteObjectRuleFiles(**si);
}
}
void cmMakefileTargetGenerator::WriteCommonCodeRules()
{
const char* root = (this->Makefile->IsOn("CMAKE_MAKE_INCLUDE_FROM_ROOT")
? "$(CMAKE_BINARY_DIR)/"
: "");
// Include the dependencies for the target.
std::string dependFileNameFull = this->TargetBuildDirectoryFull;
dependFileNameFull += "/depend.make";
*this->BuildFileStream
<< "# Include any dependencies generated for this target.\n"
<< this->GlobalGenerator->IncludeDirective << " " << root
<< this->Convert(dependFileNameFull, cmOutputConverter::HOME_OUTPUT,
cmOutputConverter::MAKERULE)
<< "\n\n";
if (!this->NoRuleMessages) {
// Include the progress variables for the target.
*this->BuildFileStream
<< "# Include the progress variables for this target.\n"
<< this->GlobalGenerator->IncludeDirective << " " << root
<< this->Convert(this->ProgressFileNameFull,
cmOutputConverter::HOME_OUTPUT,
cmOutputConverter::MAKERULE)
<< "\n\n";
}
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// make sure the depend file exists
if (!cmSystemTools::FileExists(dependFileNameFull.c_str())) {
// Write an empty dependency file.
cmGeneratedFileStream depFileStream(dependFileNameFull.c_str());
depFileStream << "# Empty dependencies file for "
<< this->GeneratorTarget->GetName() << ".\n"
<< "# This may be replaced when dependencies are built."
<< std::endl;
}
// Open the flags file. This should be copy-if-different because the
// rules may depend on this file itself.
this->FlagFileNameFull = this->TargetBuildDirectoryFull;
this->FlagFileNameFull += "/flags.make";
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this->FlagFileStream =
new cmGeneratedFileStream(this->FlagFileNameFull.c_str());
this->FlagFileStream->SetCopyIfDifferent(true);
if (!this->FlagFileStream) {
return;
}
this->LocalGenerator->WriteDisclaimer(*this->FlagFileStream);
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// Include the flags for the target.
*this->BuildFileStream
<< "# Include the compile flags for this target's objects.\n"
<< this->GlobalGenerator->IncludeDirective << " " << root
<< this->Convert(this->FlagFileNameFull, cmOutputConverter::HOME_OUTPUT,
cmOutputConverter::MAKERULE)
<< "\n\n";
}
void cmMakefileTargetGenerator::WriteTargetLanguageFlags()
{
// write language flags for target
std::set<std::string> languages;
this->GeneratorTarget->GetLanguages(
languages, this->Makefile->GetSafeDefinition("CMAKE_BUILD_TYPE"));
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// put the compiler in the rules.make file so that if it changes
// things rebuild
for (std::set<std::string>::const_iterator l = languages.begin();
l != languages.end(); ++l) {
std::string compiler = "CMAKE_";
compiler += *l;
compiler += "_COMPILER";
*this->FlagFileStream << "# compile " << *l << " with "
<< this->Makefile->GetSafeDefinition(compiler)
<< "\n";
}
for (std::set<std::string>::const_iterator l = languages.begin();
l != languages.end(); ++l) {
std::string flags = this->GetFlags(*l);
std::string defines = this->GetDefines(*l);
std::string includes = this->GetIncludes(*l);
// Escape comment characters so they do not terminate assignment.
cmSystemTools::ReplaceString(flags, "#", "\\#");
cmSystemTools::ReplaceString(defines, "#", "\\#");
cmSystemTools::ReplaceString(includes, "#", "\\#");
*this->FlagFileStream << *l << "_FLAGS = " << flags << "\n\n";
*this->FlagFileStream << *l << "_DEFINES = " << defines << "\n\n";
*this->FlagFileStream << *l << "_INCLUDES = " << includes << "\n\n";
}
}
void cmMakefileTargetGenerator::MacOSXContentGeneratorType::operator()(
cmSourceFile const& source, const char* pkgloc)
{
// Skip OS X content when not building a Framework or Bundle.
if (!this->Generator->GetGeneratorTarget()->IsBundleOnApple()) {
return;
}
std::string macdir =
this->Generator->OSXBundleGenerator->InitMacOSXContentDirectory(pkgloc);
// Get the input file location.
std::string const& input = source.GetFullPath();
// Get the output file location.
std::string output = macdir;
output += "/";
output += cmSystemTools::GetFilenameName(input);
this->Generator->CleanFiles.push_back(
this->Generator->Convert(output, cmOutputConverter::START_OUTPUT));
output = this->Generator->Convert(output, cmOutputConverter::HOME_OUTPUT);
// Create a rule to copy the content into the bundle.
std::vector<std::string> depends;
std::vector<std::string> commands;
depends.push_back(input);
std::string copyEcho = "Copying OS X content ";
copyEcho += output;
this->Generator->LocalGenerator->AppendEcho(
commands, copyEcho, cmLocalUnixMakefileGenerator3::EchoBuild);
std::string copyCommand = "$(CMAKE_COMMAND) -E copy ";
copyCommand += this->Generator->Convert(input, cmOutputConverter::NONE,
cmOutputConverter::SHELL);
copyCommand += " ";
copyCommand += this->Generator->Convert(output, cmOutputConverter::NONE,
cmOutputConverter::SHELL);
commands.push_back(copyCommand);
this->Generator->LocalGenerator->WriteMakeRule(
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*this->Generator->BuildFileStream, CM_NULLPTR, output, depends, commands,
false);
this->Generator->ExtraFiles.insert(output);
}
void cmMakefileTargetGenerator::WriteObjectRuleFiles(
cmSourceFile const& source)
{
// Identify the language of the source file.
const std::string& lang =
this->LocalGenerator->GetSourceFileLanguage(source);
if (lang.empty()) {
// don't know anything about this file so skip it
return;
}
// Get the full path name of the object file.
std::string const& objectName =
this->GeneratorTarget->GetObjectName(&source);
std::string obj =
this->LocalGenerator->GetTargetDirectory(this->GeneratorTarget);
obj += "/";
obj += objectName;
// Avoid generating duplicate rules.
if (this->ObjectFiles.find(obj) == this->ObjectFiles.end()) {
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this->ObjectFiles.insert(obj);
} else {
std::ostringstream err;
err << "Warning: Source file \"" << source.GetFullPath()
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<< "\" is listed multiple times for target \""
<< this->GeneratorTarget->GetName() << "\".";
cmSystemTools::Message(err.str().c_str(), "Warning");
return;
}
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// Create the directory containing the object file. This may be a
// subdirectory under the target's directory.
std::string dir = cmSystemTools::GetFilenamePath(obj);
cmSystemTools::MakeDirectory(
this->LocalGenerator->ConvertToFullPath(dir).c_str());
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// Save this in the target's list of object files.
this->Objects.push_back(obj);
this->CleanFiles.push_back(obj);
// TODO: Remove
// std::string relativeObj
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//= this->LocalGenerator->GetHomeRelativeOutputPath();
// relativeObj += obj;
// we compute some depends when writing the depend.make that we will also
// use in the build.make, same with depMakeFile
std::vector<std::string> depends;
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// generate the build rule file
this->WriteObjectBuildFile(obj, lang, source, depends);
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// The object file should be checked for dependency integrity.
std::string objFullPath = this->LocalGenerator->GetCurrentBinaryDirectory();
objFullPath += "/";
objFullPath += obj;
objFullPath = this->Convert(objFullPath, cmOutputConverter::FULL);
std::string srcFullPath =
this->Convert(source.GetFullPath(), cmOutputConverter::FULL);
this->LocalGenerator->AddImplicitDepends(
this->GeneratorTarget, lang, objFullPath.c_str(), srcFullPath.c_str());
}
void cmMakefileTargetGenerator::WriteObjectBuildFile(
std::string& obj, const std::string& lang, cmSourceFile const& source,
std::vector<std::string>& depends)
{
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this->LocalGenerator->AppendRuleDepend(depends,
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this->FlagFileNameFull.c_str());
this->LocalGenerator->AppendRuleDepends(depends,
this->FlagFileDepends[lang]);
// generate the depend scanning rule
this->WriteObjectDependRules(source, depends);
std::string relativeObj = this->LocalGenerator->GetHomeRelativeOutputPath();
relativeObj += obj;
// Write the build rule.
// Build the set of compiler flags.
std::string flags;
// Add language-specific flags.
std::string langFlags = "$(";
langFlags += lang;
langFlags += "_FLAGS)";
this->LocalGenerator->AppendFlags(flags, langFlags);
std::string configUpper =
cmSystemTools::UpperCase(this->LocalGenerator->GetConfigName());
// Add Fortran format flags.
if (lang == "Fortran") {
this->AppendFortranFormatFlags(flags, source);
}
// Add flags from source file properties.
if (source.GetProperty("COMPILE_FLAGS")) {
this->LocalGenerator->AppendFlags(flags,
source.GetProperty("COMPILE_FLAGS"));
*this->FlagFileStream << "# Custom flags: " << relativeObj
<< "_FLAGS = " << source.GetProperty("COMPILE_FLAGS")
<< "\n"
<< "\n";
}
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// Add language-specific defines.
std::set<std::string> defines;
// Add source-sepcific preprocessor definitions.
if (const char* compile_defs = source.GetProperty("COMPILE_DEFINITIONS")) {
this->LocalGenerator->AppendDefines(defines, compile_defs);
*this->FlagFileStream << "# Custom defines: " << relativeObj
<< "_DEFINES = " << compile_defs << "\n"
<< "\n";
}
std::string defPropName = "COMPILE_DEFINITIONS_";
defPropName += configUpper;
if (const char* config_compile_defs = source.GetProperty(defPropName)) {
this->LocalGenerator->AppendDefines(defines, config_compile_defs);
*this->FlagFileStream << "# Custom defines: " << relativeObj << "_DEFINES_"
<< configUpper << " = " << config_compile_defs
<< "\n"
<< "\n";
}
// Get the output paths for source and object files.
std::string sourceFile = this->Convert(
source.GetFullPath(), cmOutputConverter::NONE, cmOutputConverter::SHELL);
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// Construct the build message.
std::vector<std::string> no_commands;
std::vector<std::string> commands;
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// add in a progress call if needed
this->NumberOfProgressActions++;
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if (!this->NoRuleMessages) {
cmLocalUnixMakefileGenerator3::EchoProgress progress;
this->MakeEchoProgress(progress);
std::string buildEcho = "Building ";
buildEcho += lang;
buildEcho += " object ";
buildEcho += relativeObj;
this->LocalGenerator->AppendEcho(commands, buildEcho,
cmLocalUnixMakefileGenerator3::EchoBuild,
&progress);
}
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std::string targetOutPathReal;
std::string targetOutPathPDB;
std::string targetOutPathCompilePDB;
{
std::string targetFullPathReal;
std::string targetFullPathPDB;
std::string targetFullPathCompilePDB;
if (this->GeneratorTarget->GetType() == cmState::EXECUTABLE ||
this->GeneratorTarget->GetType() == cmState::STATIC_LIBRARY ||
this->GeneratorTarget->GetType() == cmState::SHARED_LIBRARY ||
this->GeneratorTarget->GetType() == cmState::MODULE_LIBRARY) {
targetFullPathReal =
this->GeneratorTarget->GetFullPath(this->ConfigName, false, true);
targetFullPathPDB =
this->GeneratorTarget->GetPDBDirectory(this->ConfigName);
targetFullPathPDB += "/";
targetFullPathPDB += this->GeneratorTarget->GetPDBName(this->ConfigName);
}
if (this->GeneratorTarget->GetType() <= cmState::OBJECT_LIBRARY) {
targetFullPathCompilePDB =
this->GeneratorTarget->GetCompilePDBPath(this->ConfigName);
if (targetFullPathCompilePDB.empty()) {
targetFullPathCompilePDB =
this->GeneratorTarget->GetSupportDirectory() + "/";
}
}
targetOutPathReal =
this->Convert(targetFullPathReal, cmOutputConverter::START_OUTPUT,
cmOutputConverter::SHELL);
targetOutPathPDB = this->Convert(
targetFullPathPDB, cmOutputConverter::NONE, cmOutputConverter::SHELL);
targetOutPathCompilePDB =
this->Convert(targetFullPathCompilePDB, cmOutputConverter::START_OUTPUT,
cmOutputConverter::SHELL);
if (this->LocalGenerator->IsMinGWMake() &&
cmHasLiteralSuffix(targetOutPathCompilePDB, "\\")) {
// mingw32-make incorrectly interprets 'a\ b c' as 'a b' and 'c'
// (but 'a\ b "c"' as 'a\', 'b', and 'c'!). Workaround this by
// avoiding a trailing backslash in the argument.
targetOutPathCompilePDB[targetOutPathCompilePDB.size() - 1] = '/';
}
}
cmLocalGenerator::RuleVariables vars;
vars.RuleLauncher = "RULE_LAUNCH_COMPILE";
vars.CMTarget = this->GeneratorTarget;
vars.Language = lang.c_str();
vars.Target = targetOutPathReal.c_str();
vars.TargetPDB = targetOutPathPDB.c_str();
vars.TargetCompilePDB = targetOutPathCompilePDB.c_str();
vars.Source = sourceFile.c_str();
std::string shellObj =
this->Convert(obj, cmOutputConverter::NONE, cmOutputConverter::SHELL);
vars.Object = shellObj.c_str();
std::string objectDir = this->GeneratorTarget->GetSupportDirectory();
objectDir = this->Convert(objectDir, cmOutputConverter::START_OUTPUT,
cmOutputConverter::SHELL);
vars.ObjectDir = objectDir.c_str();
std::string objectFileDir = cmSystemTools::GetFilenamePath(obj);
objectFileDir = this->Convert(objectFileDir, cmOutputConverter::START_OUTPUT,
cmOutputConverter::SHELL);
vars.ObjectFileDir = objectFileDir.c_str();
vars.Flags = flags.c_str();
std::string definesString = "$(";
definesString += lang;
definesString += "_DEFINES)";
this->LocalGenerator->JoinDefines(defines, definesString, lang);
vars.Defines = definesString.c_str();
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std::string const includesString = "$(" + lang + "_INCLUDES)";
vars.Includes = includesString.c_str();
// At the moment, it is assumed that C, C++, and Fortran have both
// assembly and preprocessor capabilities. The same is true for the
// ability to export compile commands
bool lang_has_preprocessor =
((lang == "C") || (lang == "CXX") || (lang == "Fortran"));
bool const lang_has_assembly = lang_has_preprocessor;
bool const lang_can_export_cmds = lang_has_preprocessor;
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// Construct the compile rules.
{
std::string compileRuleVar = "CMAKE_";
compileRuleVar += lang;
compileRuleVar += "_COMPILE_OBJECT";
std::string compileRule =
this->Makefile->GetRequiredDefinition(compileRuleVar);
std::vector<std::string> compileCommands;
cmSystemTools::ExpandListArgument(compileRule, compileCommands);
if (this->Makefile->IsOn("CMAKE_EXPORT_COMPILE_COMMANDS") &&
lang_can_export_cmds && compileCommands.size() == 1) {
std::string compileCommand = compileCommands[0];
this->LocalGenerator->ExpandRuleVariables(compileCommand, vars);
std::string workingDirectory = this->LocalGenerator->Convert(
this->LocalGenerator->GetCurrentBinaryDirectory(),
cmOutputConverter::FULL);
compileCommand.replace(compileCommand.find(langFlags), langFlags.size(),
this->GetFlags(lang));
std::string langDefines = std::string("$(") + lang + "_DEFINES)";
compileCommand.replace(compileCommand.find(langDefines),
langDefines.size(), this->GetDefines(lang));
std::string langIncludes = std::string("$(") + lang + "_INCLUDES)";
compileCommand.replace(compileCommand.find(langIncludes),
langIncludes.size(), this->GetIncludes(lang));
this->GlobalGenerator->AddCXXCompileCommand(
source.GetFullPath(), workingDirectory, compileCommand);
}
// Maybe insert an include-what-you-use runner.
if (!compileCommands.empty() && (lang == "C" || lang == "CXX")) {
std::string const iwyu_prop = lang + "_INCLUDE_WHAT_YOU_USE";
const char* iwyu = this->GeneratorTarget->GetProperty(iwyu_prop);
std::string const tidy_prop = lang + "_CLANG_TIDY";
const char* tidy = this->GeneratorTarget->GetProperty(tidy_prop);
if ((iwyu && *iwyu) || (tidy && *tidy)) {
std::string run_iwyu = "$(CMAKE_COMMAND) -E __run_iwyu";
if (iwyu && *iwyu) {
run_iwyu += " --iwyu=";
run_iwyu += this->LocalGenerator->EscapeForShell(iwyu);
}
if (tidy && *tidy) {
run_iwyu += " --tidy=";
run_iwyu += this->LocalGenerator->EscapeForShell(tidy);
run_iwyu += " --source=";
run_iwyu += sourceFile;
}
run_iwyu += " -- ";
compileCommands.front().insert(0, run_iwyu);
}
}
// Maybe insert a compiler launcher like ccache or distcc
if (!compileCommands.empty() && (lang == "C" || lang == "CXX")) {
std::string const clauncher_prop = lang + "_COMPILER_LAUNCHER";
const char* clauncher =
this->GeneratorTarget->GetProperty(clauncher_prop);
if (clauncher && *clauncher) {
std::vector<std::string> launcher_cmd;
cmSystemTools::ExpandListArgument(clauncher, launcher_cmd, true);
for (std::vector<std::string>::iterator i = launcher_cmd.begin(),
e = launcher_cmd.end();
i != e; ++i) {
*i = this->LocalGenerator->EscapeForShell(*i);
}
std::string const& run_launcher = cmJoin(launcher_cmd, " ") + " ";
compileCommands.front().insert(0, run_launcher);
}
}
// Expand placeholders in the commands.
for (std::vector<std::string>::iterator i = compileCommands.begin();
i != compileCommands.end(); ++i) {
this->LocalGenerator->ExpandRuleVariables(*i, vars);
}
// Change the command working directory to the local build tree.
this->LocalGenerator->CreateCDCommand(
compileCommands, this->LocalGenerator->GetCurrentBinaryDirectory(),
cmOutputConverter::HOME_OUTPUT);
commands.insert(commands.end(), compileCommands.begin(),
compileCommands.end());
}
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// Check for extra outputs created by the compilation.
std::vector<std::string> outputs(1, relativeObj);
if (const char* extra_outputs_str = source.GetProperty("OBJECT_OUTPUTS")) {
// Register these as extra files to clean.
cmSystemTools::ExpandListArgument(extra_outputs_str, outputs);
this->CleanFiles.insert(this->CleanFiles.end(), outputs.begin() + 1,
outputs.end());
}
// Write the rule.
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this->WriteMakeRule(*this->BuildFileStream, CM_NULLPTR, outputs, depends,
commands);
bool do_preprocess_rules = lang_has_preprocessor &&
this->LocalGenerator->GetCreatePreprocessedSourceRules();
bool do_assembly_rules =
lang_has_assembly && this->LocalGenerator->GetCreateAssemblySourceRules();
if (do_preprocess_rules || do_assembly_rules) {
std::vector<std::string> force_depends;
force_depends.push_back("cmake_force");
std::string::size_type dot_pos = relativeObj.rfind('.');
std::string relativeObjBase = relativeObj.substr(0, dot_pos);
dot_pos = obj.rfind('.');
std::string objBase = obj.substr(0, dot_pos);
if (do_preprocess_rules) {
commands.clear();
std::string relativeObjI = relativeObjBase + ".i";
std::string objI = objBase + ".i";
std::string preprocessEcho = "Preprocessing ";
preprocessEcho += lang;
preprocessEcho += " source to ";
preprocessEcho += objI;
this->LocalGenerator->AppendEcho(
commands, preprocessEcho, cmLocalUnixMakefileGenerator3::EchoBuild);
std::string preprocessRuleVar = "CMAKE_";
preprocessRuleVar += lang;
preprocessRuleVar += "_CREATE_PREPROCESSED_SOURCE";
if (const char* preprocessRule =
this->Makefile->GetDefinition(preprocessRuleVar)) {
std::vector<std::string> preprocessCommands;
cmSystemTools::ExpandListArgument(preprocessRule, preprocessCommands);
std::string shellObjI = this->Convert(objI, cmOutputConverter::NONE,
cmOutputConverter::SHELL);
vars.PreprocessedSource = shellObjI.c_str();
// Expand placeholders in the commands.
for (std::vector<std::string>::iterator i = preprocessCommands.begin();
i != preprocessCommands.end(); ++i) {
this->LocalGenerator->ExpandRuleVariables(*i, vars);
}
this->LocalGenerator->CreateCDCommand(
preprocessCommands,
this->LocalGenerator->GetCurrentBinaryDirectory(),
cmOutputConverter::HOME_OUTPUT);
commands.insert(commands.end(), preprocessCommands.begin(),
preprocessCommands.end());
} else {
std::string cmd = "$(CMAKE_COMMAND) -E cmake_unimplemented_variable ";
cmd += preprocessRuleVar;
commands.push_back(cmd);
}
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this->LocalGenerator->WriteMakeRule(*this->BuildFileStream, CM_NULLPTR,
relativeObjI, force_depends,
commands, false);
}
if (do_assembly_rules) {
commands.clear();
std::string relativeObjS = relativeObjBase + ".s";
std::string objS = objBase + ".s";
std::string assemblyEcho = "Compiling ";
assemblyEcho += lang;
assemblyEcho += " source to assembly ";
assemblyEcho += objS;
this->LocalGenerator->AppendEcho(
commands, assemblyEcho, cmLocalUnixMakefileGenerator3::EchoBuild);
std::string assemblyRuleVar = "CMAKE_";
assemblyRuleVar += lang;
assemblyRuleVar += "_CREATE_ASSEMBLY_SOURCE";
if (const char* assemblyRule =
this->Makefile->GetDefinition(assemblyRuleVar)) {
std::vector<std::string> assemblyCommands;
cmSystemTools::ExpandListArgument(assemblyRule, assemblyCommands);
std::string shellObjS = this->Convert(objS, cmOutputConverter::NONE,
cmOutputConverter::SHELL);
vars.AssemblySource = shellObjS.c_str();
// Expand placeholders in the commands.
for (std::vector<std::string>::iterator i = assemblyCommands.begin();
i != assemblyCommands.end(); ++i) {
this->LocalGenerator->ExpandRuleVariables(*i, vars);
}
this->LocalGenerator->CreateCDCommand(
assemblyCommands, this->LocalGenerator->GetCurrentBinaryDirectory(),
cmOutputConverter::HOME_OUTPUT);
commands.insert(commands.end(), assemblyCommands.begin(),
assemblyCommands.end());
} else {
std::string cmd = "$(CMAKE_COMMAND) -E cmake_unimplemented_variable ";
cmd += assemblyRuleVar;
commands.push_back(cmd);
}
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this->LocalGenerator->WriteMakeRule(*this->BuildFileStream, CM_NULLPTR,
relativeObjS, force_depends,
commands, false);
}
}
// If the language needs provides-requires mode, create the
// corresponding targets.
std::string objectRequires = relativeObj;
objectRequires += ".requires";
std::vector<std::string> p_depends;
// always provide an empty requires target
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this->LocalGenerator->WriteMakeRule(*this->BuildFileStream, CM_NULLPTR,
objectRequires, p_depends, no_commands,
true);
// write a build rule to recursively build what this obj provides
std::string objectProvides = relativeObj;
objectProvides += ".provides";
std::string temp = relativeObj;
temp += ".provides.build";
std::vector<std::string> r_commands;
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std::string tgtMakefileName =
this->LocalGenerator->GetRelativeTargetDirectory(this->GeneratorTarget);
tgtMakefileName += "/build.make";
r_commands.push_back(
this->LocalGenerator->GetRecursiveMakeCall(tgtMakefileName.c_str(), temp));
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p_depends.clear();
p_depends.push_back(objectRequires);
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this->LocalGenerator->WriteMakeRule(*this->BuildFileStream, CM_NULLPTR,
objectProvides, p_depends, r_commands,
true);
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// write the provides.build rule dependency on the obj file
p_depends.clear();
p_depends.push_back(relativeObj);
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this->LocalGenerator->WriteMakeRule(*this->BuildFileStream, CM_NULLPTR, temp,
p_depends, no_commands, false);
}
void cmMakefileTargetGenerator::WriteTargetRequiresRules()
{
std::vector<std::string> depends;
std::vector<std::string> no_commands;
// Construct the name of the dependency generation target.
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std::string depTarget =
this->LocalGenerator->GetRelativeTargetDirectory(this->GeneratorTarget);
depTarget += "/requires";
// This target drives dependency generation for all object files.
std::string relPath = this->LocalGenerator->GetHomeRelativeOutputPath();
std::string objTarget;
for (std::vector<std::string>::const_iterator obj = this->Objects.begin();
obj != this->Objects.end(); ++obj) {
objTarget = relPath;
objTarget += *obj;
objTarget += ".requires";
depends.push_back(objTarget);
}
// Write the rule.
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this->LocalGenerator->WriteMakeRule(*this->BuildFileStream, CM_NULLPTR,
depTarget, depends, no_commands, true);
}
void cmMakefileTargetGenerator::WriteTargetCleanRules()
{
std::vector<std::string> depends;
std::vector<std::string> commands;
// Construct the clean target name.
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std::string cleanTarget =
this->LocalGenerator->GetRelativeTargetDirectory(this->GeneratorTarget);
cleanTarget += "/clean";
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// Construct the clean command.
this->LocalGenerator->AppendCleanCommand(commands, this->CleanFiles,
this->GeneratorTarget);
this->LocalGenerator->CreateCDCommand(
commands, this->LocalGenerator->GetCurrentBinaryDirectory(),
cmOutputConverter::HOME_OUTPUT);
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// Write the rule.
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this->LocalGenerator->WriteMakeRule(*this->BuildFileStream, CM_NULLPTR,
cleanTarget, depends, commands, true);
}
bool cmMakefileTargetGenerator::WriteMakeRule(
std::ostream& os, const char* comment,
const std::vector<std::string>& outputs,
const std::vector<std::string>& depends,
const std::vector<std::string>& commands, bool in_help)
{
bool symbolic = false;
if (outputs.empty()) {
return symbolic;
}
// Check whether we need to bother checking for a symbolic output.
bool need_symbolic = this->GlobalGenerator->GetNeedSymbolicMark();
// Check whether the first output is marked as symbolic.
if (need_symbolic) {
if (cmSourceFile* sf = this->Makefile->GetSource(outputs[0])) {
symbolic = sf->GetPropertyAsBool("SYMBOLIC");
}
}
// We always attach the actual commands to the first output.
this->LocalGenerator->WriteMakeRule(os, comment, outputs[0], depends,
commands, symbolic, in_help);
// For single outputs, we are done.
if (outputs.size() == 1) {
return symbolic;
}
// For multiple outputs, make the extra ones depend on the first one.
std::vector<std::string> const output_depends(1, outputs[0]);
for (std::vector<std::string>::const_iterator o = outputs.begin() + 1;
o != outputs.end(); ++o) {
// Touch the extra output so "make" knows that it was updated,
// but only if the output was acually created.
std::string const out = this->Convert(*o, cmOutputConverter::HOME_OUTPUT,
cmOutputConverter::SHELL);
std::vector<std::string> output_commands;
bool o_symbolic = false;
if (need_symbolic) {
if (cmSourceFile* sf = this->Makefile->GetSource(*o)) {
o_symbolic = sf->GetPropertyAsBool("SYMBOLIC");
}
}
symbolic = symbolic && o_symbolic;
if (!o_symbolic) {
output_commands.push_back("@$(CMAKE_COMMAND) -E touch_nocreate " + out);
}
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this->LocalGenerator->WriteMakeRule(os, CM_NULLPTR, *o, output_depends,
output_commands, o_symbolic, in_help);
if (!o_symbolic) {
// At build time, remove the first output if this one does not exist
// so that "make" will rerun the real commands that create this one.
MultipleOutputPairsType::value_type p(*o, outputs[0]);
this->MultipleOutputPairs.insert(p);
}
}
return symbolic;
}
void cmMakefileTargetGenerator::WriteTargetDependRules()
{
// must write the targets depend info file
std::string dir =
this->LocalGenerator->GetTargetDirectory(this->GeneratorTarget);
this->InfoFileNameFull = dir;
this->InfoFileNameFull += "/DependInfo.cmake";
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this->InfoFileNameFull =
this->LocalGenerator->ConvertToFullPath(this->InfoFileNameFull);
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this->InfoFileStream =
new cmGeneratedFileStream(this->InfoFileNameFull.c_str());
this->InfoFileStream->SetCopyIfDifferent(true);
if (!*this->InfoFileStream) {
return;
}
this->LocalGenerator->WriteDependLanguageInfo(*this->InfoFileStream,
this->GeneratorTarget);
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// Store multiple output pairs in the depend info file.
if (!this->MultipleOutputPairs.empty()) {
/* clang-format off */
*this->InfoFileStream
<< "\n"
<< "# Pairs of files generated by the same build rule.\n"
<< "set(CMAKE_MULTIPLE_OUTPUT_PAIRS\n";
/* clang-format on */
for (MultipleOutputPairsType::const_iterator pi =
this->MultipleOutputPairs.begin();
pi != this->MultipleOutputPairs.end(); ++pi) {
*this->InfoFileStream
<< " " << cmOutputConverter::EscapeForCMake(pi->first) << " "
<< cmOutputConverter::EscapeForCMake(pi->second) << "\n";
}
*this->InfoFileStream << " )\n\n";
}
// Store list of targets linked directly or transitively.
{
/* clang-format off */
*this->InfoFileStream
<< "\n"
<< "# Targets to which this target links.\n"
<< "set(CMAKE_TARGET_LINKED_INFO_FILES\n";
/* clang-format on */
std::vector<std::string> dirs = this->GetLinkedTargetDirectories();
for (std::vector<std::string>::iterator i = dirs.begin(); i != dirs.end();
++i) {
*this->InfoFileStream << " \"" << *i << "/DependInfo.cmake\"\n";
}
*this->InfoFileStream << " )\n";
}
/* clang-format off */
*this->InfoFileStream
<< "\n"
<< "# Fortran module output directory.\n"
<< "set(CMAKE_Fortran_TARGET_MODULE_DIR \""
<< this->GeneratorTarget->GetFortranModuleDirectory() << "\")\n";
/* clang-format on */
// and now write the rule to use it
std::vector<std::string> depends;
std::vector<std::string> commands;
// Construct the name of the dependency generation target.
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std::string depTarget =
this->LocalGenerator->GetRelativeTargetDirectory(this->GeneratorTarget);
depTarget += "/depend";
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// Add a command to call CMake to scan dependencies. CMake will
// touch the corresponding depends file after scanning dependencies.
std::ostringstream depCmd;
// TODO: Account for source file properties and directory-level
// definitions when scanning for dependencies.
#if !defined(_WIN32) || defined(__CYGWIN__)
// This platform supports symlinks, so cmSystemTools will translate
// paths. Make sure PWD is set to the original name of the home
// output directory to help cmSystemTools to create the same
// translation table for the dependency scanning process.
depCmd << "cd " << (this->LocalGenerator->Convert(
this->LocalGenerator->GetBinaryDirectory(),
cmOutputConverter::FULL, cmOutputConverter::SHELL))
<< " && ";
#endif
// Generate a call this signature:
//
// cmake -E cmake_depends <generator>
// <home-src-dir> <start-src-dir>
// <home-out-dir> <start-out-dir>
// <dep-info> --color=$(COLOR)
//
// This gives the dependency scanner enough information to recreate
// the state of our local generator sufficiently for its needs.
depCmd << "$(CMAKE_COMMAND) -E cmake_depends \""
<< this->GlobalGenerator->GetName() << "\" "
<< this->Convert(this->LocalGenerator->GetSourceDirectory(),
cmOutputConverter::FULL, cmOutputConverter::SHELL)
<< " "
<< this->Convert(this->LocalGenerator->GetCurrentSourceDirectory(),
cmOutputConverter::FULL, cmOutputConverter::SHELL)
<< " "
<< this->Convert(this->LocalGenerator->GetBinaryDirectory(),
cmOutputConverter::FULL, cmOutputConverter::SHELL)
<< " "
<< this->Convert(this->LocalGenerator->GetCurrentBinaryDirectory(),
cmOutputConverter::FULL, cmOutputConverter::SHELL)
<< " "
<< this->Convert(this->InfoFileNameFull, cmOutputConverter::FULL,
cmOutputConverter::SHELL);
if (this->LocalGenerator->GetColorMakefile()) {
depCmd << " --color=$(COLOR)";
}
commands.push_back(depCmd.str());
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// Make sure all custom command outputs in this target are built.
if (this->CustomCommandDriver == OnDepends) {
this->DriveCustomCommands(depends);
}
// Write the rule.
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this->LocalGenerator->WriteMakeRule(*this->BuildFileStream, CM_NULLPTR,
depTarget, depends, commands, true);
}
void cmMakefileTargetGenerator::DriveCustomCommands(
std::vector<std::string>& depends)
{
// Depend on all custom command outputs.
std::vector<cmSourceFile*> sources;
this->GeneratorTarget->GetSourceFiles(
sources, this->Makefile->GetSafeDefinition("CMAKE_BUILD_TYPE"));
for (std::vector<cmSourceFile*>::const_iterator source = sources.begin();
source != sources.end(); ++source) {
if (cmCustomCommand* cc = (*source)->GetCustomCommand()) {
cmCustomCommandGenerator ccg(*cc, this->ConfigName,
this->LocalGenerator);
const std::vector<std::string>& outputs = ccg.GetOutputs();
depends.insert(depends.end(), outputs.begin(), outputs.end());
}
}
}
void cmMakefileTargetGenerator::WriteObjectDependRules(
cmSourceFile const& source, std::vector<std::string>& depends)
{
// Create the list of dependencies known at cmake time. These are
// shared between the object file and dependency scanning rule.
depends.push_back(source.GetFullPath());
if (const char* objectDeps = source.GetProperty("OBJECT_DEPENDS")) {
cmSystemTools::ExpandListArgument(objectDeps, depends);
}
}
void cmMakefileTargetGenerator::GenerateCustomRuleFile(
cmCustomCommandGenerator const& ccg)
{
// Collect the commands.
std::vector<std::string> commands;
std::string comment = this->LocalGenerator->ConstructComment(ccg);
if (!comment.empty()) {
// add in a progress call if needed
this->NumberOfProgressActions++;
if (!this->NoRuleMessages) {
cmLocalUnixMakefileGenerator3::EchoProgress progress;
this->MakeEchoProgress(progress);
this->LocalGenerator->AppendEcho(
commands, comment, cmLocalUnixMakefileGenerator3::EchoGenerate,
&progress);
}
}
// Now append the actual user-specified commands.
std::ostringstream content;
this->LocalGenerator->AppendCustomCommand(
commands, ccg, this->GeneratorTarget, false,
cmOutputConverter::HOME_OUTPUT, &content);
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// Collect the dependencies.
std::vector<std::string> depends;
this->LocalGenerator->AppendCustomDepend(depends, ccg);
// Write the rule.
const std::vector<std::string>& outputs = ccg.GetOutputs();
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bool symbolic = this->WriteMakeRule(*this->BuildFileStream, CM_NULLPTR,
outputs, depends, commands);
// If the rule has changed make sure the output is rebuilt.
if (!symbolic) {
this->GlobalGenerator->AddRuleHash(ccg.GetOutputs(), content.str());
}
// Setup implicit dependency scanning.
for (cmCustomCommand::ImplicitDependsList::const_iterator idi =
ccg.GetCC().GetImplicitDepends().begin();
idi != ccg.GetCC().GetImplicitDepends().end(); ++idi) {
std::string objFullPath =
this->Convert(outputs[0], cmOutputConverter::FULL);
std::string srcFullPath =
this->Convert(idi->second, cmOutputConverter::FULL);
this->LocalGenerator->AddImplicitDepends(this->GeneratorTarget, idi->first,
objFullPath.c_str(),
srcFullPath.c_str());
}
}
void cmMakefileTargetGenerator::MakeEchoProgress(
cmLocalUnixMakefileGenerator3::EchoProgress& progress) const
{
progress.Dir = this->LocalGenerator->GetBinaryDirectory();
progress.Dir += cmake::GetCMakeFilesDirectory();
std::ostringstream progressArg;
progressArg << "$(CMAKE_PROGRESS_" << this->NumberOfProgressActions << ")";
progress.Arg = progressArg.str();
}
void cmMakefileTargetGenerator::WriteObjectsVariable(
std::string& variableName, std::string& variableNameExternal,
bool useWatcomQuote)
{
// Write a make variable assignment that lists all objects for the
// target.
variableName = this->LocalGenerator->CreateMakeVariable(
this->GeneratorTarget->GetName(), "_OBJECTS");
*this->BuildFileStream << "# Object files for target "
<< this->GeneratorTarget->GetName() << "\n"
<< variableName << " =";
std::string object;
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const char* lineContinue =
this->Makefile->GetDefinition("CMAKE_MAKE_LINE_CONTINUE");
if (!lineContinue) {
lineContinue = "\\";
}
for (std::vector<std::string>::const_iterator i = this->Objects.begin();
i != this->Objects.end(); ++i) {
*this->BuildFileStream << " " << lineContinue << "\n";
*this->BuildFileStream << this->LocalGenerator->ConvertToQuotedOutputPath(
i->c_str(), useWatcomQuote);
}
*this->BuildFileStream << "\n";
// Write a make variable assignment that lists all external objects
// for the target.
variableNameExternal = this->LocalGenerator->CreateMakeVariable(
this->GeneratorTarget->GetName(), "_EXTERNAL_OBJECTS");
/* clang-format off */
*this->BuildFileStream
<< "\n"
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<< "# External object files for target "
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<< this->GeneratorTarget->GetName() << "\n"
<< variableNameExternal << " =";
/* clang-format on */
for (std::vector<std::string>::const_iterator i =
this->ExternalObjects.begin();
i != this->ExternalObjects.end(); ++i) {
object = this->Convert(*i, cmOutputConverter::START_OUTPUT);
*this->BuildFileStream << " " << lineContinue << "\n"
<< this->Makefile->GetSafeDefinition(
"CMAKE_OBJECT_NAME");
*this->BuildFileStream << this->LocalGenerator->ConvertToQuotedOutputPath(
i->c_str(), useWatcomQuote);
}
*this->BuildFileStream << "\n"
<< "\n";
}
void cmMakefileTargetGenerator::WriteObjectsString(std::string& buildObjs)
{
std::vector<std::string> objStrings;
this->WriteObjectsStrings(objStrings);
buildObjs = objStrings[0];
}
class cmMakefileTargetGeneratorObjectStrings
{
public:
cmMakefileTargetGeneratorObjectStrings(std::vector<std::string>& strings,
cmLocalUnixMakefileGenerator3* lg,
std::string::size_type limit)
: Strings(strings)
, LocalGenerator(lg)
, LengthLimit(limit)
{
this->Space = "";
}
void Feed(std::string const& obj)
{
// Construct the name of the next object.
this->NextObject = this->LocalGenerator->Convert(
obj, cmOutputConverter::START_OUTPUT, cmOutputConverter::RESPONSE);
// Roll over to next string if the limit will be exceeded.
if (this->LengthLimit != std::string::npos &&
(this->CurrentString.length() + 1 + this->NextObject.length() >
this->LengthLimit)) {
this->Strings.push_back(this->CurrentString);
this->CurrentString = "";
this->Space = "";
}
// Separate from previous object.
this->CurrentString += this->Space;
this->Space = " ";
// Append this object.
this->CurrentString += this->NextObject;
}
void Done() { this->Strings.push_back(this->CurrentString); }
private:
std::vector<std::string>& Strings;
cmLocalUnixMakefileGenerator3* LocalGenerator;
std::string::size_type LengthLimit;
std::string CurrentString;
std::string NextObject;
const char* Space;
};
void cmMakefileTargetGenerator::WriteObjectsStrings(
std::vector<std::string>& objStrings, std::string::size_type limit)
{
cmMakefileTargetGeneratorObjectStrings helper(objStrings,
this->LocalGenerator, limit);
for (std::vector<std::string>::const_iterator i = this->Objects.begin();
i != this->Objects.end(); ++i) {
helper.Feed(*i);
}
for (std::vector<std::string>::const_iterator i =
this->ExternalObjects.begin();
i != this->ExternalObjects.end(); ++i) {
helper.Feed(*i);
}
helper.Done();
}
void cmMakefileTargetGenerator::WriteTargetDriverRule(
const std::string& main_output, bool relink)
{
// Compute the name of the driver target.
std::string dir =
this->LocalGenerator->GetRelativeTargetDirectory(this->GeneratorTarget);
std::string buildTargetRuleName = dir;
buildTargetRuleName += relink ? "/preinstall" : "/build";
buildTargetRuleName =
this->Convert(buildTargetRuleName, cmOutputConverter::HOME_OUTPUT,
cmOutputConverter::UNCHANGED);
// Build the list of target outputs to drive.
std::vector<std::string> depends;
depends.push_back(main_output);
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const char* comment = CM_NULLPTR;
if (relink) {
// Setup the comment for the preinstall driver.
comment = "Rule to relink during preinstall.";
} else {
// Setup the comment for the main build driver.
comment = "Rule to build all files generated by this target.";
// Make sure all custom command outputs in this target are built.
if (this->CustomCommandDriver == OnBuild) {
this->DriveCustomCommands(depends);
}
// Make sure the extra files are built.
depends.insert(depends.end(), this->ExtraFiles.begin(),
this->ExtraFiles.end());
}
// Write the driver rule.
std::vector<std::string> no_commands;
this->LocalGenerator->WriteMakeRule(*this->BuildFileStream, comment,
buildTargetRuleName, depends,
no_commands, true);
}
void cmMakefileTargetGenerator::AppendTargetDepends(
std::vector<std::string>& depends)
{
// Static libraries never depend on anything for linking.
if (this->GeneratorTarget->GetType() == cmState::STATIC_LIBRARY) {
return;
}
// Loop over all library dependencies.
const char* cfg = this->LocalGenerator->GetConfigName().c_str();
if (cmComputeLinkInformation* cli =
this->GeneratorTarget->GetLinkInformation(cfg)) {
std::vector<std::string> const& libDeps = cli->GetDepends();
depends.insert(depends.end(), libDeps.begin(), libDeps.end());
}
}
void cmMakefileTargetGenerator::AppendObjectDepends(
std::vector<std::string>& depends)
{
// Add dependencies on the compiled object files.
std::string relPath = this->LocalGenerator->GetHomeRelativeOutputPath();
std::string objTarget;
for (std::vector<std::string>::const_iterator obj = this->Objects.begin();
obj != this->Objects.end(); ++obj) {
objTarget = relPath;
objTarget += *obj;
depends.push_back(objTarget);
}
// Add dependencies on the external object files.
depends.insert(depends.end(), this->ExternalObjects.begin(),
this->ExternalObjects.end());
// Add a dependency on the rule file itself.
this->LocalGenerator->AppendRuleDepend(depends,
this->BuildFileNameFull.c_str());
}
void cmMakefileTargetGenerator::AppendLinkDepends(
std::vector<std::string>& depends)
{
this->AppendObjectDepends(depends);
// Add dependencies on targets that must be built first.
this->AppendTargetDepends(depends);
// Add a dependency on the link definitions file, if any.
if (this->ModuleDefinitionFile) {
depends.push_back(this->ModuleDefinitionFile->GetFullPath());
}
// Add a dependency on user-specified manifest files, if any.
std::vector<cmSourceFile const*> manifest_srcs;
this->GeneratorTarget->GetManifests(manifest_srcs, this->ConfigName);
for (std::vector<cmSourceFile const*>::iterator mi = manifest_srcs.begin();
mi != manifest_srcs.end(); ++mi) {
depends.push_back((*mi)->GetFullPath());
}
// Add user-specified dependencies.
if (const char* linkDepends =
this->GeneratorTarget->GetProperty("LINK_DEPENDS")) {
cmSystemTools::ExpandListArgument(linkDepends, depends);
}
}
std::string cmMakefileTargetGenerator::GetLinkRule(
const std::string& linkRuleVar)
{
std::string linkRule = this->Makefile->GetRequiredDefinition(linkRuleVar);
if (this->GeneratorTarget->HasImplibGNUtoMS()) {
std::string ruleVar = "CMAKE_";
ruleVar += this->GeneratorTarget->GetLinkerLanguage(this->ConfigName);
ruleVar += "_GNUtoMS_RULE";
if (const char* rule = this->Makefile->GetDefinition(ruleVar)) {
linkRule += rule;
}
}
return linkRule;
}
void cmMakefileTargetGenerator::CloseFileStreams()
{
delete this->BuildFileStream;
delete this->InfoFileStream;
delete this->FlagFileStream;
}
void cmMakefileTargetGenerator::RemoveForbiddenFlags(
const char* flagVar, const std::string& linkLang, std::string& linkFlags)
{
// check for language flags that are not allowed at link time, and
// remove them, -w on darwin for gcc -w -dynamiclib sends -w to libtool
// which fails, there may be more]
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std::string removeFlags = "CMAKE_";
removeFlags += linkLang;
removeFlags += flagVar;
std::string removeflags = this->Makefile->GetSafeDefinition(removeFlags);
std::vector<std::string> removeList;
cmSystemTools::ExpandListArgument(removeflags, removeList);
for (std::vector<std::string>::iterator i = removeList.begin();
i != removeList.end(); ++i) {
std::string tmp;
std::string::size_type lastPosition = 0;
for (;;) {
std::string::size_type position = linkFlags.find(*i, lastPosition);
if (position == std::string::npos) {
tmp += linkFlags.substr(lastPosition);
break;
} else {
std::string::size_type prefixLength = position - lastPosition;
tmp += linkFlags.substr(lastPosition, prefixLength);
lastPosition = position + i->length();
bool validFlagStart =
position == 0 || isspace(linkFlags[position - 1]);
bool validFlagEnd =
lastPosition == linkFlags.size() || isspace(linkFlags[lastPosition]);
if (!validFlagStart || !validFlagEnd) {
tmp += *i;
}
}
}
linkFlags = tmp;
}
}
void cmMakefileTargetGenerator::CreateLinkScript(
const char* name, std::vector<std::string> const& link_commands,
std::vector<std::string>& makefile_commands,
std::vector<std::string>& makefile_depends)
{
// Create the link script file.
std::string linkScriptName = this->TargetBuildDirectoryFull;
linkScriptName += "/";
linkScriptName += name;
cmGeneratedFileStream linkScriptStream(linkScriptName.c_str());
linkScriptStream.SetCopyIfDifferent(true);
for (std::vector<std::string>::const_iterator cmd = link_commands.begin();
cmd != link_commands.end(); ++cmd) {
// Do not write out empty commands or commands beginning in the
// shell no-op ":".
if (!cmd->empty() && (*cmd)[0] != ':') {
linkScriptStream << *cmd << "\n";
}
}
// Create the makefile command to invoke the link script.
std::string link_command = "$(CMAKE_COMMAND) -E cmake_link_script ";
link_command += this->Convert(
linkScriptName, cmOutputConverter::START_OUTPUT, cmOutputConverter::SHELL);
link_command += " --verbose=$(VERBOSE)";
makefile_commands.push_back(link_command);
makefile_depends.push_back(linkScriptName);
}
static size_t calculateCommandLineLengthLimit()
{
#if defined(_SC_ARG_MAX)
return ((size_t)sysconf(_SC_ARG_MAX)) - 1000;
#else
return 0;
#endif
}
bool cmMakefileTargetGenerator::CheckUseResponseFileForObjects(
std::string const& l) const
{
// Check for an explicit setting one way or the other.
std::string const responseVar =
"CMAKE_" + l + "_USE_RESPONSE_FILE_FOR_OBJECTS";
if (const char* val = this->Makefile->GetDefinition(responseVar)) {
if (*val) {
return cmSystemTools::IsOn(val);
}
}
// Check for a system limit.
if (size_t const limit = calculateCommandLineLengthLimit()) {
// Compute the total length of our list of object files with room
// for argument separation and quoting. This does not convert paths
// relative to START_OUTPUT like the final list will be, so the actual
// list will likely be much shorter than this. However, in the worst
// case all objects will remain as absolute paths.
size_t length = 0;
for (std::vector<std::string>::const_iterator i = this->Objects.begin();
i != this->Objects.end(); ++i) {
length += i->size() + 3;
}
for (std::vector<std::string>::const_iterator i =
this->ExternalObjects.begin();
i != this->ExternalObjects.end(); ++i) {
length += i->size() + 3;
}
// We need to guarantee room for both objects and libraries, so
// if the objects take up more than half then use a response file
// for them.
if (length > (limit / 2)) {
return true;
}
}
// We do not need a response file for objects.
return false;
}
bool cmMakefileTargetGenerator::CheckUseResponseFileForLibraries(
std::string const& l) const
{
// Check for an explicit setting one way or the other.
std::string const responseVar =
"CMAKE_" + l + "_USE_RESPONSE_FILE_FOR_LIBRARIES";
if (const char* val = this->Makefile->GetDefinition(responseVar)) {
if (*val) {
return cmSystemTools::IsOn(val);
}
}
// We do not need a response file for libraries.
return false;
}
std::string cmMakefileTargetGenerator::CreateResponseFile(
const char* name, std::string const& options,
std::vector<std::string>& makefile_depends)
{
// Create the response file.
std::string responseFileNameFull = this->TargetBuildDirectoryFull;
responseFileNameFull += "/";
responseFileNameFull += name;
cmGeneratedFileStream responseStream(responseFileNameFull.c_str());
responseStream.SetCopyIfDifferent(true);
responseStream << options << "\n";
// Add a dependency so the target will rebuild when the set of
// objects changes.
makefile_depends.push_back(responseFileNameFull);
// Construct the name to be used on the command line.
std::string responseFileName = this->TargetBuildDirectory;
responseFileName += "/";
responseFileName += name;
return responseFileName;
}
void cmMakefileTargetGenerator::CreateLinkLibs(
std::string& linkLibs, bool relink, bool useResponseFile,
std::vector<std::string>& makefile_depends, bool useWatcomQuote)
{
std::string frameworkPath;
std::string linkPath;
this->LocalGenerator->OutputLinkLibraries(linkLibs, frameworkPath, linkPath,
*this->GeneratorTarget, relink,
useResponseFile, useWatcomQuote);
linkLibs = frameworkPath + linkPath + linkLibs;
if (useResponseFile && linkLibs.find_first_not_of(' ') != linkLibs.npos) {
// Lookup the response file reference flag.
std::string responseFlagVar = "CMAKE_";
responseFlagVar +=
this->GeneratorTarget->GetLinkerLanguage(this->ConfigName);
responseFlagVar += "_RESPONSE_FILE_LINK_FLAG";
const char* responseFlag = this->Makefile->GetDefinition(responseFlagVar);
if (!responseFlag) {
responseFlag = "@";
}
// Create this response file.
std::string link_rsp =
this->CreateResponseFile("linklibs.rsp", linkLibs, makefile_depends);
// Reference the response file.
linkLibs = responseFlag;
linkLibs += this->Convert(link_rsp, cmOutputConverter::NONE,
cmOutputConverter::SHELL);
}
}
void cmMakefileTargetGenerator::CreateObjectLists(
bool useLinkScript, bool useArchiveRules, bool useResponseFile,
std::string& buildObjs, std::vector<std::string>& makefile_depends,
bool useWatcomQuote)
{
std::string variableName;
std::string variableNameExternal;
this->WriteObjectsVariable(variableName, variableNameExternal,
useWatcomQuote);
if (useResponseFile) {
// MSVC response files cannot exceed 128K.
std::string::size_type const responseFileLimit = 131000;
// Construct the individual object list strings.
std::vector<std::string> object_strings;
this->WriteObjectsStrings(object_strings, responseFileLimit);
// Lookup the response file reference flag.
std::string responseFlagVar = "CMAKE_";
responseFlagVar +=
this->GeneratorTarget->GetLinkerLanguage(this->ConfigName);
responseFlagVar += "_RESPONSE_FILE_LINK_FLAG";
const char* responseFlag = this->Makefile->GetDefinition(responseFlagVar);
if (!responseFlag) {
responseFlag = "@";
}
// Write a response file for each string.
const char* sep = "";
for (unsigned int i = 0; i < object_strings.size(); ++i) {
// Number the response files.
char rsp[32];
sprintf(rsp, "objects%u.rsp", i + 1);
// Create this response file.
std::string objects_rsp =
this->CreateResponseFile(rsp, object_strings[i], makefile_depends);
// Separate from previous response file references.
buildObjs += sep;
sep = " ";
// Reference the response file.
buildObjs += responseFlag;
buildObjs += this->Convert(objects_rsp, cmOutputConverter::NONE,
cmOutputConverter::SHELL);
}
} else if (useLinkScript) {
if (!useArchiveRules) {
this->WriteObjectsString(buildObjs);
}
} else {
buildObjs = "$(";
buildObjs += variableName;
buildObjs += ") $(";
buildObjs += variableNameExternal;
buildObjs += ")";
}
}
void cmMakefileTargetGenerator::AddIncludeFlags(std::string& flags,
const std::string& lang)
{
std::string responseVar = "CMAKE_";
responseVar += lang;
responseVar += "_USE_RESPONSE_FILE_FOR_INCLUDES";
bool useResponseFile = this->Makefile->IsOn(responseVar);
std::vector<std::string> includes;
const std::string& config =
this->Makefile->GetSafeDefinition("CMAKE_BUILD_TYPE");
this->LocalGenerator->GetIncludeDirectories(includes, this->GeneratorTarget,
lang, config);
std::string includeFlags = this->LocalGenerator->GetIncludeFlags(
includes, this->GeneratorTarget, lang, false, useResponseFile, config);
if (includeFlags.empty()) {
return;
}
if (useResponseFile) {
std::string name = "includes_";
name += lang;
name += ".rsp";
std::string arg = "@" +
this->CreateResponseFile(name.c_str(), includeFlags,
this->FlagFileDepends[lang]);
this->LocalGenerator->AppendFlags(flags, arg);
} else {
this->LocalGenerator->AppendFlags(flags, includeFlags);
}
}
void cmMakefileTargetGenerator::GenDefFile(
std::vector<std::string>& real_link_commands, std::string& linkFlags)
{
if (this->GeneratorTarget->GetPropertyAsBool("WINDOWS_EXPORT_ALL_SYMBOLS")) {
std::string name_of_def_file =
this->GeneratorTarget->GetSupportDirectory();
name_of_def_file += std::string("/") + this->GeneratorTarget->GetName();
name_of_def_file += ".def";
std::string cmd = cmSystemTools::GetCMakeCommand();
cmd =
this->Convert(cmd, cmOutputConverter::NONE, cmOutputConverter::SHELL);
cmd += " -E __create_def ";
cmd += this->Convert(name_of_def_file, cmOutputConverter::START_OUTPUT,
cmOutputConverter::SHELL);
cmd += " ";
std::string objlist_file = name_of_def_file;
objlist_file += ".objs";
cmd += this->Convert(objlist_file, cmOutputConverter::START_OUTPUT,
cmOutputConverter::SHELL);
real_link_commands.insert(real_link_commands.begin(), cmd);
// create a list of obj files for the -E __create_def to read
cmGeneratedFileStream fout(objlist_file.c_str());
for (std::vector<std::string>::const_iterator i = this->Objects.begin();
i != this->Objects.end(); ++i) {
if (cmHasLiteralSuffix(*i, ".obj")) {
fout << *i << "\n";
}
}
for (std::vector<std::string>::const_iterator i =
this->ExternalObjects.begin();
i != this->ExternalObjects.end(); ++i) {
fout << *i << "\n";
}
// now add the def file link flag
linkFlags += " ";
linkFlags += this->Makefile->GetSafeDefinition("CMAKE_LINK_DEF_FILE_FLAG");
linkFlags +=
this->Convert(name_of_def_file, cmOutputConverter::START_OUTPUT,
cmOutputConverter::SHELL);
linkFlags += " ";
}
}