CMake/Source/cmLocalUnixMakefileGenerato...

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15 KiB
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/*=========================================================================
Program: CMake - Cross-Platform Makefile Generator
Module: $RCSfile$
Language: C++
Date: $Date$
Version: $Revision$
Copyright (c) 2002 Kitware, Inc., Insight Consortium. All rights reserved.
See Copyright.txt or http://www.cmake.org/HTML/Copyright.html for details.
This software is distributed WITHOUT ANY WARRANTY; without even
the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
PURPOSE. See the above copyright notices for more information.
=========================================================================*/
#include "cmLocalUnixMakefileGenerator2.h"
#include "cmGeneratedFileStream.h"
#include "cmGlobalGenerator.h"
#include "cmMakefile.h"
#include "cmSourceFile.h"
//----------------------------------------------------------------------------
cmLocalUnixMakefileGenerator2::cmLocalUnixMakefileGenerator2()
{
}
//----------------------------------------------------------------------------
cmLocalUnixMakefileGenerator2::~cmLocalUnixMakefileGenerator2()
{
}
//----------------------------------------------------------------------------
void cmLocalUnixMakefileGenerator2::Generate(bool fromTheTop)
{
// TODO: Account for control-c during Makefile generation.
// Generate old style for now.
this->cmLocalUnixMakefileGenerator::Generate(fromTheTop);
// Generate the rule files for each target.
const cmTargets& targets = m_Makefile->GetTargets();
for(cmTargets::const_iterator t = targets.begin(); t != targets.end(); ++t)
{
this->GenerateTargetRuleFile(t->second);
}
// Generate the main makefile.
this->GenerateMakefile();
// Generate the cmake file that keeps the makefile up to date.
this->GenerateCMakefile();
}
//----------------------------------------------------------------------------
void cmLocalUnixMakefileGenerator2::GenerateMakefile()
{
std::string makefileName = m_Makefile->GetStartOutputDirectory();
makefileName += "/Makefile2";
std::string cmakefileName = makefileName;
cmakefileName += ".cmake";
// Open the output files.
std::ofstream makefileStream(makefileName.c_str());
if(!makefileStream)
{
cmSystemTools::Error("Error can not open for write: ",
makefileName.c_str());
cmSystemTools::ReportLastSystemError("");
return;
}
// Write the do not edit header.
this->WriteDisclaimer(makefileStream);
// Write some rules to make things look nice.
makefileStream
<< "# Disable some common implicit rules to speed things up.\n"
<< ".SUFFIXES:\n"
<< ".SUFFIXES:.hpuxmakemusthaverule\n\n";
// Write standard variables to the makefile.
this->OutputMakeVariables(makefileStream);
// Build command to run CMake to check if anything needs regenerating.
std::string runRule =
"@$(CMAKE_COMMAND) -H$(CMAKE_SOURCE_DIR) -B$(CMAKE_BINARY_DIR)";
runRule += " --check-rerun ";
runRule += this->ConvertToRelativeOutputPath(cmakefileName.c_str());
// Most unix makes will pass the command line flags to make down to
// sub-invoked makes via an environment variable. However, some
// makes do not support that, so you have to pass the flags
// explicitly.
const char* depRule = "$(MAKE) -f Makefile2 $(MAKESILENT) all.depends";
const char* allRule = "$(MAKE) -f Makefile2 $(MAKESILENT) all";
if(m_PassMakeflags)
{
depRule = "$(MAKE) -f Makefile2 $(MAKESILENT) -$(MAKEFLAGS) all.depends";
allRule = "$(MAKE) -f Makefile2 $(MAKESILENT) -$(MAKEFLAGS) all";
}
// Write the main entry point target. This must be the VERY first
// target so that make with no arguments will run it.
{
std::vector<std::string> depends;
std::vector<std::string> commands;
//commands.push_back(runRule);
commands.push_back(depRule);
commands.push_back(allRule);
this->OutputMakeRule(
makefileStream,
"Default target executed when no arguments are given to make.",
"default_target",
depends,
commands);
}
// Write special target to silence make output. This must be after
// the default target in case VERBOSE is set (which changes the name).
if(!m_Makefile->IsOn("CMAKE_VERBOSE_MAKEFILE"))
{
makefileStream
<< "# Suppress display of executed commands.\n"
<< "$(VERBOSE).SILENT:\n\n";
}
// Get the set of targets.
const cmTargets& targets = m_Makefile->GetTargets();
// Output top level dependency rule.
{
std::vector<std::string> depends;
std::vector<std::string> commands;
for(cmTargets::const_iterator t = targets.begin(); t != targets.end(); ++t)
{
if(t->second.IsInAll())
{
std::string dep = this->GetTargetDirectory(t->second);
dep += "/";
dep += t->first;
dep += ".depends";
depends.push_back(dep);
}
}
this->OutputMakeRule(makefileStream, "all dependencies", "all.depends",
depends, commands);
}
// Output top level build rule.
{
std::vector<std::string> depends;
std::vector<std::string> commands;
for(cmTargets::const_iterator t = targets.begin(); t != targets.end(); ++t)
{
if(t->second.IsInAll())
{
depends.push_back(t->first+".requires");
}
}
this->OutputMakeRule(makefileStream, "all", "all",
depends, commands);
}
// Write include statements to get rules for each target.
makefileStream
<< "# Include target rule files.\n";
for(cmTargets::const_iterator t = targets.begin(); t != targets.end(); ++t)
{
std::string ruleFileName = this->GetTargetDirectory(t->second);
ruleFileName += "/";
ruleFileName += t->first;
ruleFileName += ".make";
makefileStream
<< m_IncludeDirective << " "
<< this->ConvertToOutputForExisting(ruleFileName.c_str()).c_str()
<< "\n";
}
}
//----------------------------------------------------------------------------
void cmLocalUnixMakefileGenerator2::GenerateCMakefile()
{
std::string makefileName = m_Makefile->GetStartOutputDirectory();
makefileName += "/Makefile2";
std::string cmakefileName = makefileName;
cmakefileName += ".cmake";
// Open the output file.
std::ofstream cmakefileStream(cmakefileName.c_str());
if(!cmakefileStream)
{
cmSystemTools::Error("Error can not open for write: ",
cmakefileName.c_str());
cmSystemTools::ReportLastSystemError("");
return;
}
// Write the do not edit header.
this->WriteDisclaimer(cmakefileStream);
// Get the list of files contributing to this generation step.
// Sort the list and remove duplicates.
std::vector<std::string> lfiles = m_Makefile->GetListFiles();
std::sort(lfiles.begin(), lfiles.end(), std::less<std::string>());
std::vector<std::string>::iterator new_end = std::unique(lfiles.begin(),
lfiles.end());
lfiles.erase(new_end, lfiles.end());
// Save the list to the cmake file.
cmakefileStream
<< "# The corresponding makefile\n"
<< "# \"" << makefileName << "\"\n"
<< "# was generated from the following files:\n"
<< "SET(CMAKE_MAKEFILE_DEPENDS\n"
<< " \"" << m_Makefile->GetHomeOutputDirectory() << "/CMakeCache.txt\"\n";
for(std::vector<std::string>::const_iterator i = lfiles.begin();
i != lfiles.end(); ++i)
{
cmakefileStream
<< " \"" << i->c_str() << "\"\n";
}
cmakefileStream
<< " )\n\n";
// Set the corresponding makefile in the cmake file.
cmakefileStream
<< "# The corresponding makefile is:\n"
<< "SET(CMAKE_MAKEFILE_OUTPUTS\n"
<< " \"" << makefileName.c_str() << "\"\n"
<< " )\n";
}
//----------------------------------------------------------------------------
void
cmLocalUnixMakefileGenerator2
::GenerateTargetRuleFile(const cmTarget& target)
{
// Create a directory for this target.
std::string dir = this->GetTargetDirectory(target);
cmSystemTools::MakeDirectory(dir.c_str());
// First generate the object rule files. Save a list of all object
// files for this target.
std::vector<std::string> objects;
const std::vector<cmSourceFile*>& sources = target.GetSourceFiles();
for(std::vector<cmSourceFile*>::const_iterator source = sources.begin();
source != sources.end(); ++source)
{
if(!(*source)->GetPropertyAsBool("HEADER_FILE_ONLY") &&
!(*source)->GetCustomCommand())
{
// Generate this object file's rule file.
this->GenerateObjectRuleFile(target, *(*source));
// Save the object file full path.
std::string obj = dir;
obj += "/";
obj += this->GetObjectFileName(*(*source));
objects.push_back(obj);
}
}
// If there is no dependencies file, create an empty one.
std::string depFileName = dir;
depFileName += "/";
depFileName += target.GetName();
depFileName += ".depends.make";
if(!cmSystemTools::FileExists(depFileName.c_str()))
{
std::ofstream depFileStream(depFileName.c_str());
this->WriteDisclaimer(depFileStream);
depFileStream
<< "# Empty dependencies file for target " << target.GetName() << ".\n"
<< "# This may be replaced when dependencies are built.\n";
}
// Open the rule file. This should be copy-if-different because the
// rules may depend on this file itself.
std::string ruleFileName = dir;
ruleFileName += "/";
ruleFileName += target.GetName();
ruleFileName += ".make";
cmGeneratedFileStream ruleFile(ruleFileName.c_str());
std::ostream& ruleFileStream = ruleFile.GetStream();
if(!ruleFileStream)
{
// TODO: Produce error message that accounts for generated stream
// .tmp.
return;
}
this->WriteDisclaimer(ruleFileStream);
ruleFileStream
<< "# Rule file for target " << target.GetName() << ".\n\n";
// Include the dependencies for the target.
ruleFileStream
<< "# Include any dependencies generated for this rule.\n"
<< m_IncludeDirective << " "
<< this->ConvertToOutputForExisting(depFileName.c_str()).c_str()
<< "\n\n";
// Include the rule file for each object.
if(!objects.empty())
{
ruleFileStream
<< "# Include rules for object files.\n";
for(std::vector<std::string>::const_iterator obj = objects.begin();
obj != objects.end(); ++obj)
{
std::string objRuleFileName = *obj;
objRuleFileName += ".make";
ruleFileStream
<< m_IncludeDirective << " "
<< this->ConvertToOutputForExisting(objRuleFileName.c_str()).c_str()
<< "\n";
}
ruleFileStream
<< "\n";
}
// Write the dependency generation rule.
{
std::vector<std::string> depends;
std::vector<std::string> commands;
std::string depComment = "dependencies for ";
depComment += target.GetName();
std::string depTarget = dir;
depTarget += "/";
depTarget += target.GetName();
depTarget += ".depends";
for(std::vector<std::string>::const_iterator obj = objects.begin();
obj != objects.end(); ++obj)
{
depends.push_back((*obj)+".depends");
}
depends.push_back(ruleFileName);
std::string touchCmd = "@touch ";
touchCmd += this->ConvertToRelativeOutputPath(depTarget.c_str());
// TODO: Construct dependency generation rule and append command.
commands.push_back(touchCmd);
this->OutputMakeRule(ruleFileStream, depComment.c_str(), depTarget.c_str(),
depends, commands);
}
}
//----------------------------------------------------------------------------
void
cmLocalUnixMakefileGenerator2
::GenerateObjectRuleFile(const cmTarget& target, const cmSourceFile& source)
{
// Get the full path name of the object file.
std::string objName = this->GetObjectFileName(source);
std::string obj = this->GetTargetDirectory(target);
obj += "/";
obj += objName;
// Create the directory containing the object file. This may be a
// subdirectory under the target's directory.
std::string dir = cmSystemTools::GetFilenamePath(obj.c_str());
cmSystemTools::MakeDirectory(dir.c_str());
// If there is no dependencies file, create an empty one.
std::string depFileName = obj;
depFileName += ".depends.make";
if(!cmSystemTools::FileExists(depFileName.c_str()))
{
std::ofstream depFileStream(depFileName.c_str());
this->WriteDisclaimer(depFileStream);
depFileStream
<< "# Empty dependencies file for object file "
<< objName.c_str() << ".\n"
<< "# This may be replaced when dependencies are built.\n";
}
// Open the rule file. This should be copy-if-different because the
// rules may depend on this file itself.
std::string ruleFileName = obj;
ruleFileName += ".make";
cmGeneratedFileStream ruleFile(ruleFileName.c_str());
std::ostream& ruleFileStream = ruleFile.GetStream();
if(!ruleFileStream)
{
// TODO: Produce error message that accounts for generated stream
// .tmp.
return;
}
this->WriteDisclaimer(ruleFileStream);
ruleFileStream
<< "# Rule file for object file " << objName.c_str() << ".\n\n";
// Include the dependencies for the target.
ruleFileStream
<< "# Include any dependencies generated for this rule.\n"
<< m_IncludeDirective << " "
<< this->ConvertToOutputForExisting(depFileName.c_str()).c_str()
<< "\n\n";
// Write the dependency generation rule.
{
std::vector<std::string> depends;
std::vector<std::string> commands;
std::string depComment = "dependencies for ";
depComment += objName;
std::string depTarget = obj;
depTarget += ".depends";
depends.push_back(source.GetFullPath());
depends.push_back(ruleFileName);
std::string touchCmd = "@touch ";
touchCmd += this->ConvertToRelativeOutputPath(depTarget.c_str());
// TODO: Construct dependency generation rule and append command.
commands.push_back(touchCmd);
this->OutputMakeRule(ruleFileStream, depComment.c_str(), depTarget.c_str(),
depends, commands);
}
}
//----------------------------------------------------------------------------
void cmLocalUnixMakefileGenerator2::WriteDisclaimer(std::ostream& os)
{
os
<< "# CMAKE generated file: DO NOT EDIT!\n"
<< "# Generated by \"" << m_GlobalGenerator->GetName() << "\""
<< " Generator, CMake Version "
<< cmMakefile::GetMajorVersion() << "."
<< cmMakefile::GetMinorVersion() << "\n\n";
}
//----------------------------------------------------------------------------
std::string
cmLocalUnixMakefileGenerator2
::GetTargetDirectory(const cmTarget& target)
{
std::string dir = m_Makefile->GetStartOutputDirectory();
dir += "/";
dir += target.GetName();
dir += ".dir";
return dir;
}
//----------------------------------------------------------------------------
std::string
cmLocalUnixMakefileGenerator2
::GetObjectFileName(const cmSourceFile& source)
{
// If the full path to the source file includes this directory,
// we want to use the relative path for the filename of the
// object file. Otherwise, we will use just the filename
// portion.
std::string objectName;
if((cmSystemTools::GetFilenamePath(
source.GetFullPath()).find(
m_Makefile->GetCurrentDirectory()) == 0)
|| (cmSystemTools::GetFilenamePath(
source.GetFullPath()).find(
m_Makefile->GetCurrentOutputDirectory()) == 0))
{
objectName = source.GetSourceName();
}
else
{
objectName = cmSystemTools::GetFilenameName(source.GetSourceName());
}
// Append the object file extension.
objectName +=
m_GlobalGenerator->GetLanguageOutputExtensionFromExtension(
source.GetSourceExtension().c_str());
return objectName;
}