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CMake/Source/cmGlobalGenerator.cxx

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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 "cmGlobalGenerator.h"
#include "cmLocalGenerator.h"
#include "cmake.h"
#include "cmMakefile.h"
cmGlobalGenerator::cmGlobalGenerator()
{
// do nothing duh
}
cmGlobalGenerator::~cmGlobalGenerator()
{
// Delete any existing cmLocalGenerators
unsigned int i;
for (i = 0; i < m_LocalGenerators.size(); ++i)
{
delete m_LocalGenerators[i];
}
m_LocalGenerators.clear();
}
void cmGlobalGenerator::EnableLanguage(const char* lang,
cmMakefile *mf)
{
if(m_FindMakeProgramFile.size() == 0)
{
cmSystemTools::Error(
"Generator implementation error, "
"all generators must specify m_FindMakeProgramFile");
}
std::string root = mf->GetDefinition("CMAKE_ROOT");
if(!mf->GetDefinition("CMAKE_MAKE_PROGRAM")
|| cmSystemTools::IsOff(mf->GetDefinition("CMAKE_MAKE_PROGRAM")))
{
std::string setMakeProgram = root;
setMakeProgram += "/Modules/";
setMakeProgram += m_FindMakeProgramFile;
mf->ReadListFile(0, setMakeProgram.c_str());
}
if(!mf->GetDefinition("CMAKE_MAKE_PROGRAM")
|| cmSystemTools::IsOff(mf->GetDefinition("CMAKE_MAKE_PROGRAM")))
{
cmSystemTools::Error("EnableLanguage was unable to find a CMAKE_MAKE_PROGRAM");
return;
}
std::string makeProgram = mf->GetDefinition("CMAKE_MAKE_PROGRAM");
if(makeProgram.find(' ') != makeProgram.npos)
{
cmSystemTools::GetShortPath(makeProgram.c_str(), makeProgram);
this->GetCMakeInstance()->AddCacheEntry("CMAKE_MAKE_PROGRAM", makeProgram.c_str(),
"make program",
cmCacheManager::FILEPATH);
}
bool isLocal = m_CMakeInstance->GetLocal();
// if no lang specified use CXX
if(!lang )
{
lang = "CXX";
}
std::string rootBin = mf->GetHomeOutputDirectory();
if(m_ConfiguredFilesPath.size())
{
rootBin = m_ConfiguredFilesPath;
}
bool needCBackwards = false;
bool needCXXBackwards = false;
if (!isLocal &&
!this->GetLanguageEnabled("C") && !this->GetLanguageEnabled("CXX") &&
!this->GetLanguageEnabled("JAVA"))
{
// Read the DetermineSystem file
std::string systemFile = root;
systemFile += "/Modules/CMakeDetermineSystem.cmake";
mf->ReadListFile(0, systemFile.c_str());
}
// check for a C compiler and configure it
if(!isLocal &&
!this->GetLanguageEnabled("C") &&
lang[0] == 'C')
{
if (m_CMakeInstance->GetIsInTryCompile())
{
cmSystemTools::Error("This should not have happen. "
"If you see this message, you are probably using a "
"broken CMakeLists.txt file or a problematic release of "
"CMake");
}
needCBackwards = true;
// read determine C compiler
std::string determineCFile = root;
determineCFile += "/Modules/CMakeDetermineCCompiler.cmake";
mf->ReadListFile(0,determineCFile.c_str());
this->SetLanguageEnabled("C");
// put CC in the environment in case user scripts want
// to run configure
// see man putenv for explaination of this stupid code...
if(mf->GetDefinition("CMAKE_C_COMPILER"))
{
static char envCC[5000];
std::string env = "CC=${CMAKE_C_COMPILER}";
mf->ExpandVariablesInString(env);
unsigned int size = static_cast<unsigned int>(env.size());
if(size > 4999)
{
size = 4999;
}
strncpy(envCC, env.c_str(), size);
envCC[size] = 0;
putenv(envCC);
}
}
// check for a CXX compiler and configure it
if(!isLocal &&
!this->GetLanguageEnabled("CXX") &&
strcmp(lang, "CXX") == 0)
{
needCXXBackwards = true;
std::string determineCFile = root;
determineCFile += "/Modules/CMakeDetermineCXXCompiler.cmake";
mf->ReadListFile(0,determineCFile.c_str());
this->SetLanguageEnabled("CXX");
// put CXX in the environment in case user scripts want
// to run configure
// see man putenv for explaination of this stupid code...
static char envCXX[5000];
if(mf->GetDefinition("CMAKE_CXX_COMPILER"))
{
std::string env = "CXX=${CMAKE_CXX_COMPILER}";
mf->ExpandVariablesInString(env);
unsigned int size = static_cast<unsigned int>(env.size());
if(size > 4999)
{
size = 4999;
}
strncpy(envCXX, env.c_str(), size);
envCXX[4999] = 0;
putenv(envCXX);
}
}
// check for a Java compiler and configure it
if(!isLocal &&
!this->GetLanguageEnabled("JAVA") &&
strcmp(lang, "JAVA") == 0)
{
std::string determineCFile = root;
determineCFile += "/Modules/CMakeDetermineJavaCompiler.cmake";
mf->ReadListFile(0,determineCFile.c_str());
this->SetLanguageEnabled("JAVA");
}
std::string fpath = rootBin;
if(!mf->GetDefinition("CMAKE_SYSTEM_LOADED"))
{
fpath += "/CMakeSystem.cmake";
mf->ReadListFile(0,fpath.c_str());
}
// if C, then enable C
if(lang[0] == 'C' && !mf->GetDefinition("CMAKE_C_COMPILER_LOADED"))
{
fpath = rootBin;
fpath += "/CMakeCCompiler.cmake";
mf->ReadListFile(0,fpath.c_str());
this->SetLanguageEnabled("C");
}
if(strcmp(lang, "CXX") == 0 && !mf->GetDefinition("CMAKE_CXX_COMPILER_LOADED"))
{
fpath = rootBin;
fpath += "/CMakeCXXCompiler.cmake";
mf->ReadListFile(0,fpath.c_str());
this->SetLanguageEnabled("CXX");
}
if(strcmp(lang, "JAVA") == 0 && !mf->GetDefinition("CMAKE_JAVA_COMPILER_LOADED"))
{
fpath = rootBin;
fpath += "/CMakeJavaCompiler.cmake";
mf->ReadListFile(0,fpath.c_str());
this->SetLanguageEnabled("JAVA");
}
if ( lang[0] == 'C' && !mf->GetDefinition("CMAKE_SYSTEM_SPECIFIC_INFORMATION_LOADED"))
{
fpath = root;
fpath += "/Modules/CMakeSystemSpecificInformation.cmake";
mf->ReadListFile(0,fpath.c_str());
}
if(!isLocal)
{
// At this point we should have enough info for a try compile
// which is used in the backward stuff
if(needCBackwards)
{
if (!m_CMakeInstance->GetIsInTryCompile())
{
std::string ifpath = root + "/Modules/CMakeTestCCompiler.cmake";
mf->ReadListFile(0,ifpath.c_str());
// for old versions of CMake ListFiles
const char* versionValue
= mf->GetDefinition("CMAKE_BACKWARDS_COMPATIBILITY");
if (atof(versionValue) <= 1.4)
{
ifpath = root + "/Modules/CMakeBackwardCompatibilityC.cmake";
mf->ReadListFile(0,ifpath.c_str());
}
}
}
if(needCXXBackwards)
{
if (!m_CMakeInstance->GetIsInTryCompile())
{
std::string ifpath = root + "/Modules/CMakeTestCXXCompiler.cmake";
mf->ReadListFile(0,ifpath.c_str());
// for old versions of CMake ListFiles
const char* versionValue
= mf->GetDefinition("CMAKE_BACKWARDS_COMPATIBILITY");
if (atof(versionValue) <= 1.4)
{
std::string nfpath = root + "/Modules/CMakeBackwardCompatibilityCXX.cmake";
mf->ReadListFile(0,nfpath.c_str());
}
}
}
// if we are from the top, always define this
mf->AddDefinition("RUN_CONFIGURE", true);
}
}
void cmGlobalGenerator::SetLanguageEnabled(const char* l)
{
m_LanguageEnabled[l] = true;
}
bool cmGlobalGenerator::GetLanguageEnabled(const char* l)
{
return (m_LanguageEnabled.count(l) > 0);
}
void cmGlobalGenerator::ClearEnabledLanguages()
{
m_LanguageEnabled.clear();
}
void cmGlobalGenerator::Configure()
{
// Delete any existing cmLocalGenerators
unsigned int i;
for (i = 0; i < m_LocalGenerators.size(); ++i)
{
delete m_LocalGenerators[i];
}
m_LocalGenerators.clear();
// start with this directory
cmLocalGenerator *lg = this->CreateLocalGenerator();
m_LocalGenerators.push_back(lg);
// set the Start directories
lg->GetMakefile()->SetStartDirectory(m_CMakeInstance->GetStartDirectory());
lg->GetMakefile()->SetStartOutputDirectory(m_CMakeInstance->GetStartOutputDirectory());
lg->GetMakefile()->MakeStartDirectoriesCurrent();
// now do it
this->RecursiveConfigure(lg,0.0f,0.9f);
// after it is all done do a ConfigureFinalPass
for (i = 0; i < m_LocalGenerators.size(); ++i)
{
m_LocalGenerators[i]->ConfigureFinalPass();
m_CMakeInstance->UpdateProgress("Configuring",
0.9f+0.1f*(i+1.0f)/m_LocalGenerators.size());
}
m_CMakeInstance->UpdateProgress("Configuring done", -1);
}
// loop through the directories creating cmLocalGenerators and Configure()
void cmGlobalGenerator::RecursiveConfigure(cmLocalGenerator *lg,
float startProgress,
float endProgress)
{
// configure the current directory
lg->Configure();
// get all the subdirectories
std::vector<std::string> subdirs = lg->GetMakefile()->GetSubDirectories();
float progressPiece = (endProgress - startProgress)/(1.0f+subdirs.size());
m_CMakeInstance->UpdateProgress("Configuring",
startProgress + progressPiece);
// for each subdir recurse
unsigned int i;
for (i = 0; i < subdirs.size(); ++i)
{
cmLocalGenerator *lg2 = this->CreateLocalGenerator();
m_LocalGenerators.push_back(lg2);
// add the subdir to the start output directory
std::string outdir = lg->GetMakefile()->GetStartOutputDirectory();
outdir += "/";
outdir += subdirs[i];
lg2->GetMakefile()->SetStartOutputDirectory(outdir.c_str());
// add the subdir to the start source directory
std::string currentDir = lg->GetMakefile()->GetStartDirectory();
currentDir += "/";
currentDir += subdirs[i];
lg2->GetMakefile()->SetStartDirectory(currentDir.c_str());
lg2->GetMakefile()->MakeStartDirectoriesCurrent();
this->RecursiveConfigure(lg2,
startProgress + (i+1.0f)*progressPiece,
startProgress + (i+2.0f)*progressPiece);
}
}
void cmGlobalGenerator::Generate()
{
// For each existing cmLocalGenerator
unsigned int i;
for (i = 0; i < m_LocalGenerators.size(); ++i)
{
m_LocalGenerators[i]->Generate(true);
m_CMakeInstance->UpdateProgress("Generating",
(i+1.0f)/m_LocalGenerators.size());
}
m_CMakeInstance->UpdateProgress("Generating done", -1);
}
void cmGlobalGenerator::LocalGenerate()
{
// for this case we create one LocalGenerator
// configure it, and then Generate it
// start with this directory
cmLocalGenerator *lg = this->CreateLocalGenerator();
// set the Start directories
lg->GetMakefile()->SetStartDirectory(m_CMakeInstance->GetStartDirectory());
lg->GetMakefile()->SetStartOutputDirectory(m_CMakeInstance->GetStartOutputDirectory());
lg->GetMakefile()->MakeStartDirectoriesCurrent();
// now do trhe configure
lg->Configure();
lg->ConfigureFinalPass();
lg->Generate(false);
delete lg;
}
int cmGlobalGenerator::TryCompile(const char *, const char *bindir,
const char *, const char *target,
std::string *output)
{
// now build the test
std::string makeCommand =
m_CMakeInstance->GetCacheManager()->GetCacheValue("CMAKE_MAKE_PROGRAM");
if(makeCommand.size() == 0)
{
cmSystemTools::Error(
"Generator cannot find the appropriate make command.");
return 1;
}
makeCommand = cmSystemTools::ConvertToOutputPath(makeCommand.c_str());
/**
* Run an executable command and put the stdout in output.
*/
std::string cwd = cmSystemTools::GetCurrentWorkingDirectory();
cmSystemTools::ChangeDirectory(bindir);
// Since we have full control over the invocation of nmake, let us
// make it quiet.
if ( strcmp(this->GetName(), "NMake Makefiles") == 0 )
{
makeCommand += " /NOLOGO ";
}
// now build
if (target)
{
makeCommand += " ";
makeCommand += target;
#if defined(_WIN32) || defined(__CYGWIN__)
makeCommand += ".exe";
#endif // WIN32
}
else
{
makeCommand += " all";
}
int retVal;
if (!cmSystemTools::RunCommand(makeCommand.c_str(), *output, retVal, 0, false))
{
cmSystemTools::Error("Generator: execution of make failed.");
// return to the original directory
cmSystemTools::ChangeDirectory(cwd.c_str());
return 1;
}
cmSystemTools::ChangeDirectory(cwd.c_str());
return retVal;
}
cmLocalGenerator *cmGlobalGenerator::CreateLocalGenerator()
{
cmLocalGenerator *lg = new cmLocalGenerator;
lg->SetGlobalGenerator(this);
return lg;
}
void cmGlobalGenerator::EnableLanguagesFromGenerator(cmGlobalGenerator *gen )
{
this->SetConfiguredFilesPath(
gen->GetCMakeInstance()->GetHomeOutputDirectory());
const char* make =
gen->GetCMakeInstance()->GetCacheDefinition("CMAKE_MAKE_PROGRAM");
this->GetCMakeInstance()->AddCacheEntry("CMAKE_MAKE_PROGRAM", make,
"make program",
cmCacheManager::FILEPATH);
// if C, then enable C
if(gen->GetLanguageEnabled("C"))
{
this->SetLanguageEnabled("C");
}
// if CXX
if(gen->GetLanguageEnabled("CXX"))
{
this->SetLanguageEnabled("CXX");
}
}
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