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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"
#include <stdlib.h> // required for atof
#if defined(_WIN32) && !defined(__CYGWIN__)
#include <windows.h>
#endif
int cmGlobalGenerator::s_TryCompileTimeout = 0;
cmGlobalGenerator::cmGlobalGenerator()
{
// by default use the native paths
m_ForceUnixPaths = false;
}
cmGlobalGenerator::~cmGlobalGenerator()
{
// Delete any existing cmLocalGenerators
unsigned int i;
for (i = 0; i < m_LocalGenerators.size(); ++i)
{
delete m_LocalGenerators[i];
}
m_LocalGenerators.clear();
}
// Find the make program for the generator, required for try compiles
void cmGlobalGenerator::FindMakeProgram(cmMakefile* mf)
{
if(m_FindMakeProgramFile.size() == 0)
{
cmSystemTools::Error(
"Generator implementation error, "
"all generators must specify m_FindMakeProgramFile");
}
if(!mf->GetDefinition("CMAKE_MAKE_PROGRAM")
|| cmSystemTools::IsOff(mf->GetDefinition("CMAKE_MAKE_PROGRAM")))
{
std::string setMakeProgram = mf->GetModulesFile(m_FindMakeProgramFile.c_str());
if(setMakeProgram.size())
{
mf->ReadListFile(0, setMakeProgram.c_str());
}
}
if(!mf->GetDefinition("CMAKE_MAKE_PROGRAM")
|| cmSystemTools::IsOff(mf->GetDefinition("CMAKE_MAKE_PROGRAM")))
{
cmOStringStream err;
err << "CMake was unable to find a build program corresponding to \""
<< this->GetName() << "\". CMAKE_MAKE_PROGRAM is not set. You "
<< "probably need to select a different build tool.";
cmSystemTools::Error(err.str().c_str());
cmSystemTools::SetFatalErrorOccured();
return;
}
std::string makeProgram = mf->GetRequiredDefinition("CMAKE_MAKE_PROGRAM");
// if there are spaces in the make program use short path
// but do not short path the actual program name, as
// this can cause trouble with VSExpress
if(makeProgram.find(' ') != makeProgram.npos)
{
std::string dir;
std::string file;
cmSystemTools::SplitProgramPath(makeProgram.c_str(),
dir, file);
std::string saveFile = file;
cmSystemTools::GetShortPath(makeProgram.c_str(), makeProgram);
cmSystemTools::SplitProgramPath(makeProgram.c_str(),
dir, file);
makeProgram = dir;
makeProgram += "/";
makeProgram += saveFile;
this->GetCMakeInstance()->AddCacheEntry("CMAKE_MAKE_PROGRAM", makeProgram.c_str(),
"make program",
cmCacheManager::FILEPATH);
}
}
// enable the given language
void cmGlobalGenerator::EnableLanguage(std::vector<std::string>const& languages,
cmMakefile *mf)
{
if(languages.size() == 0)
{
cmSystemTools::Error("EnableLanguage must have a lang specified!");
cmSystemTools::SetFatalErrorOccured();
return;
}
// setup some variables for the EnableLanguage function
bool isLocal = m_CMakeInstance->GetLocal();
// if we are from the top, always define this
if(!isLocal)
{
mf->AddDefinition("RUN_CONFIGURE", true);
}
bool needTestLanguage = false;
std::string rootBin = mf->GetHomeOutputDirectory();
// If the configuration files path has been set,
// then we are in a try compile and need to copy the enable language
// files into the try compile directory
if(m_ConfiguredFilesPath.size())
{
std::string src = m_ConfiguredFilesPath;
src += "/CMakeSystem.cmake";
std::string dst = rootBin;
dst += "/CMakeSystem.cmake";
cmSystemTools::CopyFileIfDifferent(src.c_str(), dst.c_str());
for(std::vector<std::string>::const_iterator l = languages.begin();
l != languages.end(); ++l)
{
const char* lang = l->c_str();
std::string src2 = m_ConfiguredFilesPath;
src2 += "/CMake";
src2 += lang;
src2 += "Compiler.cmake";
std::string dst2 = rootBin;
dst2 += "/CMake";
dst2 += lang;
dst2 += "Compiler.cmake";
cmSystemTools::CopyFileIfDifferent(src2.c_str(), dst2.c_str());
}
rootBin = m_ConfiguredFilesPath;
}
// **** Step 1, find and make sure CMAKE_MAKE_PROGRAM is defined
this->FindMakeProgram(mf);
// **** Step 2, Load the CMakeDetermineSystem.cmake file and find out
// what platform we are running on
if (!isLocal && !mf->GetDefinition("CMAKE_SYSTEM_NAME"))
{
#if defined(_WIN32) && !defined(__CYGWIN__)
/* Windows version number data. */
OSVERSIONINFO osvi;
ZeroMemory(&osvi, sizeof(osvi));
osvi.dwOSVersionInfoSize = sizeof(OSVERSIONINFO);
GetVersionEx (&osvi);
cmOStringStream windowsVersionString;
windowsVersionString << osvi.dwMajorVersion << "." << osvi.dwMinorVersion;
windowsVersionString.str();
mf->AddDefinition("CMAKE_SYSTEM_VERSION", windowsVersionString.str().c_str());
#endif
// Read the DetermineSystem file
std::string systemFile = mf->GetModulesFile("CMakeDetermineSystem.cmake");
mf->ReadListFile(0, systemFile.c_str());
}
// **** Step 3, load the CMakeSystem.cmake from the binary directory
// this file is configured by the CMakeDetermineSystem.cmake file
std::string fpath = rootBin;
if(!mf->GetDefinition("CMAKE_SYSTEM_LOADED"))
{
fpath += "/CMakeSystem.cmake";
mf->ReadListFile(0,fpath.c_str());
}
// **** Step 4, foreach language
// load the CMakeDetermine(LANG)Compiler.cmake file to find
// the compiler
for(std::vector<std::string>::const_iterator l = languages.begin();
l != languages.end(); ++l)
{
const char* lang = l->c_str();
if(!isLocal && !this->GetLanguageEnabled(lang) )
{
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");
}
needTestLanguage = true; // must test a language after finding it
// read determine LANG compiler
std::string determinCompiler = "CMakeDetermine";
determinCompiler += lang;
determinCompiler += "Compiler.cmake";
std::string determineFile = mf->GetModulesFile(determinCompiler.c_str());
if(!mf->ReadListFile(0,determineFile.c_str()))
{
cmSystemTools::Error("Could not find cmake module file:", determineFile.c_str());
}
// put ${CMake_(LANG)_COMPILER_ENV_VAR}=${CMAKE_(LANG)_COMPILER into the
// environment, in case user scripts want to run configure, or sub cmakes
std::string compilerName = "CMAKE_";
compilerName += lang;
compilerName += "_COMPILER";
std::string compilerEnv = "CMAKE_";
compilerEnv += lang;
compilerEnv += "_COMPILER_ENV_VAR";
std::string envVar = mf->GetRequiredDefinition(compilerEnv.c_str());
std::string envVarValue = mf->GetRequiredDefinition(compilerName.c_str());
std::string env = envVar;
env += "=";
env += envVarValue;
cmSystemTools::PutEnv(env.c_str());
}
// **** Step 5, Load the configured language compiler file, if not loaded.
// look to see if CMAKE_(LANG)_COMPILER_LOADED is set,
// if not then load the CMake(LANG)Compiler.cmake file from the
// binary tree, this is a configured file provided by
// CMakeDetermine(LANG)Compiler.cmake
std::string loadedLang = "CMAKE_";
loadedLang += lang;
loadedLang += "_COMPILER_LOADED";
if(!mf->GetDefinition(loadedLang.c_str()))
{
fpath = rootBin;
fpath += "/CMake";
fpath += lang;
fpath += "Compiler.cmake";
if(!mf->ReadListFile(0,fpath.c_str()))
{
cmSystemTools::Error("Could not find cmake module file:", fpath.c_str());
}
this->SetLanguageEnabled(lang, mf);
}
}
// **** Step 6, Load the system specific information if not yet loaded
if (!mf->GetDefinition("CMAKE_SYSTEM_SPECIFIC_INFORMATION_LOADED"))
{
fpath = mf->GetModulesFile("CMakeSystemSpecificInformation.cmake");
if(!mf->ReadListFile(0,fpath.c_str()))
{
cmSystemTools::Error("Could not find cmake module file:", fpath.c_str());
}
}
for(std::vector<std::string>::const_iterator l = languages.begin();
l != languages.end(); ++l)
{
const char* lang = l->c_str();
std::string langLoadedVar = "CMAKE_";
langLoadedVar += lang;
langLoadedVar += "_INFORMATION_LOADED";
if (!mf->GetDefinition(langLoadedVar.c_str()))
{
fpath = "CMake";
fpath += lang;
fpath += "Information.cmake";
fpath = mf->GetModulesFile(fpath.c_str());
if(!mf->ReadListFile(0,fpath.c_str()))
{
cmSystemTools::Error("Could not find cmake module file:", fpath.c_str());
}
}
// **** Step 7, Test the compiler for the language just setup
// At this point we should have enough info for a try compile
// which is used in the backward stuff
if(!isLocal)
{
if(needTestLanguage)
{
if (!m_CMakeInstance->GetIsInTryCompile())
{
std::string testLang = "CMakeTest";
testLang += lang;
testLang += "Compiler.cmake";
std::string ifpath = mf->GetModulesFile(testLang.c_str());
if(!mf->ReadListFile(0,ifpath.c_str()))
{
cmSystemTools::Error("Could not find cmake module file:", ifpath.c_str());
}
// **** Step 8, load backwards compatibility stuff for C and CXX
// for old versions of CMake ListFiles C and CXX had some
// backwards compatibility files they have to load
const char* versionValue
= mf->GetDefinition("CMAKE_BACKWARDS_COMPATIBILITY");
if (atof(versionValue) <= 1.4)
{
if(strcmp(lang, "C") == 0)
{
ifpath = mf->GetModulesFile("CMakeBackwardCompatibilityC.cmake");
mf->ReadListFile(0,ifpath.c_str());
}
if(strcmp(lang, "CXX") == 0)
{
ifpath = mf->GetModulesFile("CMakeBackwardCompatibilityCXX.cmake");
mf->ReadListFile(0,ifpath.c_str());
}
}
}
}
}
}
}
const char* cmGlobalGenerator::GetLanguageFromExtension(const char* ext)
{
if(m_ExtensionToLanguage.count(ext) > 0)
{
return m_ExtensionToLanguage[ext].c_str();
}
return 0;
}
void cmGlobalGenerator::SetLanguageEnabled(const char* l, cmMakefile* mf)
{
if(m_LanguageEnabled.count(l) > 0)
{
return;
}
std::string extensionsVar = std::string("CMAKE_") +
std::string(l) + std::string("_SOURCE_FILE_EXTENSIONS");
std::string exts = mf->GetSafeDefinition(extensionsVar.c_str());
std::vector<std::string> extensionList;
cmSystemTools::ExpandListArgument(exts, extensionList);
for(std::vector<std::string>::iterator i = extensionList.begin();
i != extensionList.end(); ++i)
{
m_ExtensionToLanguage[*i] = 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);
std::set<std::string> notFoundMap;
// after it is all done do a ConfigureFinalPass
cmCacheManager* manager = 0;
for (i = 0; i < m_LocalGenerators.size(); ++i)
{
manager = m_LocalGenerators[i]->GetMakefile()->GetCacheManager();
m_LocalGenerators[i]->ConfigureFinalPass();
cmTargets const& targets = m_LocalGenerators[i]->GetMakefile()->GetTargets();
for (cmTargets::const_iterator l = targets.begin();
l != targets.end(); l++)
{
cmTarget::LinkLibraries libs = l->second.GetLinkLibraries();
for(cmTarget::LinkLibraries::iterator lib = libs.begin();
lib != libs.end(); ++lib)
{
if(lib->first.size() > 9 &&
cmSystemTools::IsNOTFOUND(lib->first.c_str()))
{
std::string varName = lib->first.substr(0, lib->first.size()-9);
notFoundMap.insert(varName);
}
}
std::vector<std::string>& incs =
m_LocalGenerators[i]->GetMakefile()->GetIncludeDirectories();
for( std::vector<std::string>::iterator lib = incs.begin();
lib != incs.end(); ++lib)
{
if(lib->size() > 9 &&
cmSystemTools::IsNOTFOUND(lib->c_str()))
{
std::string varName = lib->substr(0, lib->size()-9);
notFoundMap.insert(varName);
}
}
m_CMakeInstance->UpdateProgress("Configuring",
0.9f+0.1f*(i+1.0f)/m_LocalGenerators.size());
m_LocalGenerators[i]->GetMakefile()->CheckInfiniteLoops();
}
}
if(notFoundMap.size())
{
std::string notFoundVars;
for(std::set<std::string>::iterator ii = notFoundMap.begin();
ii != notFoundMap.end(); ++ii)
{
notFoundVars += *ii;
if(manager)
{
cmCacheManager::CacheIterator it =
manager->GetCacheIterator(ii->c_str());
if(it.GetPropertyAsBool("ADVANCED"))
{
notFoundVars += " (ADVANCED)";
}
}
notFoundVars += "\n";
}
cmSystemTools::Error("This project requires some variables to be set,\n"
"and cmake can not find them.\n"
"Please set the following variables:\n",
notFoundVars.c_str());
}
if ( !m_CMakeInstance->GetScriptMode() )
{
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::pair<cmStdString, bool> > 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();
lg2->SetParent(lg);
m_LocalGenerators.push_back(lg2);
// add the subdir to the start output directory
std::string outdir = lg->GetMakefile()->GetStartOutputDirectory();
outdir += "/";
outdir += subdirs[i].first;
lg2->GetMakefile()->SetStartOutputDirectory(outdir.c_str());
lg2->SetExcludeAll(!subdirs[i].second);
// add the subdir to the start source directory
std::string currentDir = lg->GetMakefile()->GetStartDirectory();
currentDir += "/";
currentDir += subdirs[i].first;
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_LocalGenerators[i]->GenerateInstallRules();
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, cmMakefile*)
{
// 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__)
std::string tmp = target;
// if the target does not already end in . something
// then assume .exe
if(tmp.size() < 4 || tmp[tmp.size()-4] != '.')
{
makeCommand += ".exe";
}
#endif // WIN32
}
else
{
makeCommand += " all";
}
int retVal;
int timeout = cmGlobalGenerator::s_TryCompileTimeout;
bool hideconsole = cmSystemTools::GetRunCommandHideConsole();
cmSystemTools::SetRunCommandHideConsole(true);
if (!cmSystemTools::RunSingleCommand(makeCommand.c_str(), output,
&retVal, 0, false, timeout))
{
cmSystemTools::SetRunCommandHideConsole(hideconsole);
cmSystemTools::Error("Generator: execution of make failed.");
// return to the original directory
cmSystemTools::ChangeDirectory(cwd.c_str());
return 1;
}
cmSystemTools::SetRunCommandHideConsole(hideconsole);
// The SGI MipsPro 7.3 compiler does not return an error code when
// the source has a #error in it! This is a work-around for such
// compilers.
if((retVal == 0) && (output->find("#error") != std::string::npos))
{
retVal = 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);
// copy the enabled languages
this->m_LanguageEnabled = gen->m_LanguageEnabled;
this->m_ExtensionToLanguage = gen->m_ExtensionToLanguage;
}
//----------------------------------------------------------------------------
void cmGlobalGenerator::GetDocumentation(cmDocumentationEntry& entry) const
{
entry.name = this->GetName();
entry.brief = "";
entry.full = "";
}
bool cmGlobalGenerator::IsExcluded(cmLocalGenerator* root,
cmLocalGenerator* gen)
{
cmLocalGenerator* cur = gen->GetParent();
while(cur && cur != root)
{
if(cur->GetExcludeAll())
{
return true;
}
cur = cur->GetParent();
}
return false;
}
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