722 lines
24 KiB
C++
722 lines
24 KiB
C++
/*============================================================================
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CMake - Cross Platform Makefile Generator
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Copyright 2000-2009 Kitware, Inc., Insight Software Consortium
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Distributed under the OSI-approved BSD License (the "License");
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see accompanying file Copyright.txt for details.
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This software is distributed WITHOUT ANY WARRANTY; without even the
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implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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See the License for more information.
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============================================================================*/
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#include "cmDependsFortran.h"
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#include "cmFortranParser.h" /* Interface to parser object. */
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#include "cmGeneratedFileStream.h"
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#include "cmLocalGenerator.h"
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#include "cmMakefile.h"
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#include "cmOutputConverter.h"
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#include "cmSystemTools.h"
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#include <assert.h>
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#include <cmsys/FStream.hxx>
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#include <iostream>
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#include <map>
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#include <stdlib.h>
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#include <string.h>
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#include <utility>
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// TODO: Test compiler for the case of the mod file. Some always
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// use lower case and some always use upper case. I do not know if any
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// use the case from the source code.
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class cmDependsFortranInternals
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{
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public:
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// The set of modules provided by this target.
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std::set<std::string> TargetProvides;
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// Map modules required by this target to locations.
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typedef std::map<std::string, std::string> TargetRequiresMap;
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TargetRequiresMap TargetRequires;
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// Information about each object file.
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typedef std::map<std::string, cmFortranSourceInfo> ObjectInfoMap;
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ObjectInfoMap ObjectInfo;
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cmFortranSourceInfo& CreateObjectInfo(const char* obj, const char* src)
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{
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std::map<std::string, cmFortranSourceInfo>::iterator i =
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this->ObjectInfo.find(obj);
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if (i == this->ObjectInfo.end()) {
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std::map<std::string, cmFortranSourceInfo>::value_type entry(
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obj, cmFortranSourceInfo());
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i = this->ObjectInfo.insert(entry).first;
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i->second.Source = src;
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}
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return i->second;
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}
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};
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cmDependsFortran::cmDependsFortran()
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: Internal(CM_NULLPTR)
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{
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}
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cmDependsFortran::cmDependsFortran(cmLocalGenerator* lg)
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: cmDepends(lg)
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, Internal(new cmDependsFortranInternals)
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{
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// Configure the include file search path.
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this->SetIncludePathFromLanguage("Fortran");
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// Get the list of definitions.
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std::vector<std::string> definitions;
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cmMakefile* mf = this->LocalGenerator->GetMakefile();
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if (const char* c_defines =
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mf->GetDefinition("CMAKE_TARGET_DEFINITIONS_Fortran")) {
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cmSystemTools::ExpandListArgument(c_defines, definitions);
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}
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// translate i.e. FOO=BAR to FOO and add it to the list of defined
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// preprocessor symbols
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for (std::vector<std::string>::const_iterator it = definitions.begin();
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it != definitions.end(); ++it) {
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std::string def = *it;
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std::string::size_type assignment = def.find('=');
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if (assignment != std::string::npos) {
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def = it->substr(0, assignment);
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}
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this->PPDefinitions.insert(def);
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}
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}
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cmDependsFortran::~cmDependsFortran()
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{
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delete this->Internal;
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}
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bool cmDependsFortran::WriteDependencies(const std::set<std::string>& sources,
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const std::string& obj,
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std::ostream& /*makeDepends*/,
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std::ostream& /*internalDepends*/)
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{
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// Make sure this is a scanning instance.
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if (sources.empty() || sources.begin()->empty()) {
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cmSystemTools::Error("Cannot scan dependencies without a source file.");
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return false;
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}
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if (obj.empty()) {
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cmSystemTools::Error("Cannot scan dependencies without an object file.");
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return false;
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}
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bool okay = true;
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for (std::set<std::string>::const_iterator it = sources.begin();
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it != sources.end(); ++it) {
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const std::string& src = *it;
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// Get the information object for this source.
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cmFortranSourceInfo& info =
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this->Internal->CreateObjectInfo(obj.c_str(), src.c_str());
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// Create the parser object. The constructor takes info by reference,
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// so we may look into the resulting objects later.
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cmFortranParser parser(this->IncludePath, this->PPDefinitions, info);
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// Push on the starting file.
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cmFortranParser_FilePush(&parser, src.c_str());
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// Parse the translation unit.
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if (cmFortran_yyparse(parser.Scanner) != 0) {
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// Failed to parse the file. Report failure to write dependencies.
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okay = false;
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/* clang-format off */
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std::cerr <<
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"warning: failed to parse dependencies from Fortran source "
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"'" << src << "': " << parser.Error << std::endl
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;
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/* clang-format on */
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}
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}
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return okay;
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}
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bool cmDependsFortran::Finalize(std::ostream& makeDepends,
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std::ostream& internalDepends)
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{
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// Prepare the module search process.
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this->LocateModules();
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// Get the directory in which stamp files will be stored.
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const char* stamp_dir = this->TargetDirectory.c_str();
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// Get the directory in which module files will be created.
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cmMakefile* mf = this->LocalGenerator->GetMakefile();
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std::string mod_dir =
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mf->GetSafeDefinition("CMAKE_Fortran_TARGET_MODULE_DIR");
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if (mod_dir.empty()) {
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mod_dir = this->LocalGenerator->GetCurrentBinaryDirectory();
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}
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// Actually write dependencies to the streams.
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typedef cmDependsFortranInternals::ObjectInfoMap ObjectInfoMap;
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ObjectInfoMap const& objInfo = this->Internal->ObjectInfo;
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for (ObjectInfoMap::const_iterator i = objInfo.begin(); i != objInfo.end();
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++i) {
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if (!this->WriteDependenciesReal(i->first.c_str(), i->second, mod_dir,
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stamp_dir, makeDepends,
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internalDepends)) {
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return false;
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}
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}
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// Store the list of modules provided by this target.
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std::string fiName = this->TargetDirectory;
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fiName += "/fortran.internal";
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cmGeneratedFileStream fiStream(fiName.c_str());
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fiStream << "# The fortran modules provided by this target.\n";
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fiStream << "provides\n";
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std::set<std::string> const& provides = this->Internal->TargetProvides;
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for (std::set<std::string>::const_iterator i = provides.begin();
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i != provides.end(); ++i) {
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fiStream << " " << *i << "\n";
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}
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// Create a script to clean the modules.
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if (!provides.empty()) {
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std::string fcName = this->TargetDirectory;
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fcName += "/cmake_clean_Fortran.cmake";
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cmGeneratedFileStream fcStream(fcName.c_str());
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fcStream << "# Remove fortran modules provided by this target.\n";
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fcStream << "FILE(REMOVE";
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for (std::set<std::string>::const_iterator i = provides.begin();
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i != provides.end(); ++i) {
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std::string mod_upper = mod_dir;
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mod_upper += "/";
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mod_upper += cmSystemTools::UpperCase(*i);
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mod_upper += ".mod";
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std::string mod_lower = mod_dir;
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mod_lower += "/";
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mod_lower += *i;
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mod_lower += ".mod";
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std::string stamp = stamp_dir;
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stamp += "/";
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stamp += *i;
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stamp += ".mod.stamp";
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fcStream << "\n";
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fcStream << " \""
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<< this->LocalGenerator->ConvertToRelativePath(
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mod_lower, cmOutputConverter::START_OUTPUT)
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<< "\"\n";
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fcStream << " \""
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<< this->LocalGenerator->ConvertToRelativePath(
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mod_upper, cmOutputConverter::START_OUTPUT)
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<< "\"\n";
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fcStream << " \""
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<< this->LocalGenerator->ConvertToRelativePath(
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stamp, cmOutputConverter::START_OUTPUT)
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<< "\"\n";
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}
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fcStream << " )\n";
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}
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return true;
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}
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void cmDependsFortran::LocateModules()
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{
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// Collect the set of modules provided and required by all sources.
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typedef cmDependsFortranInternals::ObjectInfoMap ObjectInfoMap;
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ObjectInfoMap const& objInfo = this->Internal->ObjectInfo;
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for (ObjectInfoMap::const_iterator infoI = objInfo.begin();
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infoI != objInfo.end(); ++infoI) {
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cmFortranSourceInfo const& info = infoI->second;
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// Include this module in the set provided by this target.
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this->Internal->TargetProvides.insert(info.Provides.begin(),
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info.Provides.end());
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for (std::set<std::string>::const_iterator i = info.Requires.begin();
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i != info.Requires.end(); ++i) {
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this->Internal->TargetRequires[*i] = "";
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}
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}
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// Short-circuit for simple targets.
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if (this->Internal->TargetRequires.empty()) {
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return;
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}
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// Match modules provided by this target to those it requires.
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this->MatchLocalModules();
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// Load information about other targets.
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cmMakefile* mf = this->LocalGenerator->GetMakefile();
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std::vector<std::string> infoFiles;
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if (const char* infoFilesValue =
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mf->GetDefinition("CMAKE_TARGET_LINKED_INFO_FILES")) {
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cmSystemTools::ExpandListArgument(infoFilesValue, infoFiles);
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}
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for (std::vector<std::string>::const_iterator i = infoFiles.begin();
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i != infoFiles.end(); ++i) {
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std::string targetDir = cmSystemTools::GetFilenamePath(*i);
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std::string fname = targetDir + "/fortran.internal";
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cmsys::ifstream fin(fname.c_str());
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if (fin) {
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this->MatchRemoteModules(fin, targetDir.c_str());
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}
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}
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}
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void cmDependsFortran::MatchLocalModules()
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{
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const char* stampDir = this->TargetDirectory.c_str();
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std::set<std::string> const& provides = this->Internal->TargetProvides;
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for (std::set<std::string>::const_iterator i = provides.begin();
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i != provides.end(); ++i) {
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this->ConsiderModule(i->c_str(), stampDir);
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}
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}
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void cmDependsFortran::MatchRemoteModules(std::istream& fin,
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const char* stampDir)
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{
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std::string line;
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bool doing_provides = false;
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while (cmSystemTools::GetLineFromStream(fin, line)) {
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// Ignore comments and empty lines.
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if (line.empty() || line[0] == '#' || line[0] == '\r') {
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continue;
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}
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if (line[0] == ' ') {
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if (doing_provides) {
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this->ConsiderModule(line.c_str() + 1, stampDir);
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}
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} else if (line == "provides") {
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doing_provides = true;
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} else {
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doing_provides = false;
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}
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}
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}
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void cmDependsFortran::ConsiderModule(const char* name, const char* stampDir)
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{
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// Locate each required module.
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typedef cmDependsFortranInternals::TargetRequiresMap TargetRequiresMap;
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TargetRequiresMap::iterator required =
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this->Internal->TargetRequires.find(name);
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if (required != this->Internal->TargetRequires.end() &&
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required->second.empty()) {
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// The module is provided by a CMake target. It will have a stamp file.
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std::string stampFile = stampDir;
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stampFile += "/";
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stampFile += name;
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stampFile += ".mod.stamp";
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required->second = stampFile;
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}
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}
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bool cmDependsFortran::WriteDependenciesReal(const char* obj,
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cmFortranSourceInfo const& info,
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std::string const& mod_dir,
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const char* stamp_dir,
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std::ostream& makeDepends,
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std::ostream& internalDepends)
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{
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typedef cmDependsFortranInternals::TargetRequiresMap TargetRequiresMap;
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// Get the source file for this object.
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const char* src = info.Source.c_str();
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// Write the include dependencies to the output stream.
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std::string obj_i = this->LocalGenerator->ConvertToRelativePath(
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obj, cmOutputConverter::HOME_OUTPUT);
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std::string obj_m = this->LocalGenerator->ConvertToOutputFormat(
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obj_i, cmOutputConverter::MAKERULE);
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internalDepends << obj_i << std::endl;
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internalDepends << " " << src << std::endl;
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for (std::set<std::string>::const_iterator i = info.Includes.begin();
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i != info.Includes.end(); ++i) {
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makeDepends << obj_m << ": "
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<< this->LocalGenerator->Convert(
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*i, cmOutputConverter::HOME_OUTPUT,
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cmOutputConverter::MAKERULE)
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<< std::endl;
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internalDepends << " " << *i << std::endl;
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}
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makeDepends << std::endl;
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// Write module requirements to the output stream.
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for (std::set<std::string>::const_iterator i = info.Requires.begin();
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i != info.Requires.end(); ++i) {
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// Require only modules not provided in the same source.
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if (std::set<std::string>::const_iterator(info.Provides.find(*i)) !=
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info.Provides.end()) {
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continue;
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}
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// If the module is provided in this target special handling is
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// needed.
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if (this->Internal->TargetProvides.find(*i) !=
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this->Internal->TargetProvides.end()) {
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// The module is provided by a different source in the same
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// target. Add the proxy dependency to make sure the other
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// source builds first.
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std::string proxy = stamp_dir;
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proxy += "/";
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proxy += *i;
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proxy += ".mod.proxy";
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proxy = this->LocalGenerator->Convert(
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proxy, cmOutputConverter::HOME_OUTPUT, cmOutputConverter::MAKERULE);
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// since we require some things add them to our list of requirements
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makeDepends << obj_m << ".requires: " << proxy << std::endl;
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}
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// The object file should depend on timestamped files for the
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// modules it uses.
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TargetRequiresMap::const_iterator required =
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this->Internal->TargetRequires.find(*i);
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if (required == this->Internal->TargetRequires.end()) {
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abort();
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}
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if (!required->second.empty()) {
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// This module is known. Depend on its timestamp file.
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std::string stampFile = this->LocalGenerator->Convert(
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required->second, cmOutputConverter::HOME_OUTPUT,
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cmOutputConverter::MAKERULE);
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makeDepends << obj_m << ": " << stampFile << "\n";
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} else {
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// This module is not known to CMake. Try to locate it where
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// the compiler will and depend on that.
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std::string module;
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if (this->FindModule(*i, module)) {
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module = this->LocalGenerator->Convert(
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module, cmOutputConverter::HOME_OUTPUT, cmOutputConverter::MAKERULE);
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makeDepends << obj_m << ": " << module << "\n";
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}
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}
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}
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// Write provided modules to the output stream.
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for (std::set<std::string>::const_iterator i = info.Provides.begin();
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i != info.Provides.end(); ++i) {
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std::string proxy = stamp_dir;
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proxy += "/";
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proxy += *i;
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proxy += ".mod.proxy";
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proxy = this->LocalGenerator->Convert(
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proxy, cmOutputConverter::HOME_OUTPUT, cmOutputConverter::MAKERULE);
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makeDepends << proxy << ": " << obj_m << ".provides" << std::endl;
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}
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// If any modules are provided then they must be converted to stamp files.
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if (!info.Provides.empty()) {
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// Create a target to copy the module after the object file
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// changes.
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makeDepends << obj_m << ".provides.build:\n";
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for (std::set<std::string>::const_iterator i = info.Provides.begin();
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i != info.Provides.end(); ++i) {
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// Include this module in the set provided by this target.
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this->Internal->TargetProvides.insert(*i);
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// Always use lower case for the mod stamp file name. The
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// cmake_copy_f90_mod will call back to this class, which will
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// try various cases for the real mod file name.
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std::string m = cmSystemTools::LowerCase(*i);
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std::string modFile = mod_dir;
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modFile += "/";
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modFile += *i;
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modFile = this->LocalGenerator->Convert(
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modFile, cmOutputConverter::HOME_OUTPUT, cmOutputConverter::SHELL);
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std::string stampFile = stamp_dir;
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stampFile += "/";
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stampFile += m;
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stampFile += ".mod.stamp";
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stampFile = this->LocalGenerator->Convert(
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stampFile, cmOutputConverter::HOME_OUTPUT, cmOutputConverter::SHELL);
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makeDepends << "\t$(CMAKE_COMMAND) -E cmake_copy_f90_mod " << modFile
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<< " " << stampFile;
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cmMakefile* mf = this->LocalGenerator->GetMakefile();
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const char* cid = mf->GetDefinition("CMAKE_Fortran_COMPILER_ID");
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if (cid && *cid) {
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makeDepends << " " << cid;
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}
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makeDepends << "\n";
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}
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// After copying the modules update the timestamp file so that
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// copying will not be done again until the source rebuilds.
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makeDepends << "\t$(CMAKE_COMMAND) -E touch " << obj_m
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<< ".provides.build\n";
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// Make sure the module timestamp rule is evaluated by the time
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// the target finishes building.
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std::string driver = this->TargetDirectory;
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driver += "/build";
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driver = this->LocalGenerator->Convert(
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driver, cmOutputConverter::HOME_OUTPUT, cmOutputConverter::MAKERULE);
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makeDepends << driver << ": " << obj_m << ".provides.build\n";
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}
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return true;
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}
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bool cmDependsFortran::FindModule(std::string const& name, std::string& module)
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{
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// Construct possible names for the module file.
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std::string mod_upper = cmSystemTools::UpperCase(name);
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std::string mod_lower = name;
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mod_upper += ".mod";
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mod_lower += ".mod";
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// Search the include path for the module.
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std::string fullName;
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for (std::vector<std::string>::const_iterator i = this->IncludePath.begin();
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i != this->IncludePath.end(); ++i) {
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// Try the lower-case name.
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fullName = *i;
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fullName += "/";
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fullName += mod_lower;
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if (cmSystemTools::FileExists(fullName.c_str(), true)) {
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module = fullName;
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return true;
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}
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// Try the upper-case name.
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fullName = *i;
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fullName += "/";
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fullName += mod_upper;
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if (cmSystemTools::FileExists(fullName.c_str(), true)) {
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module = fullName;
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return true;
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}
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}
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return false;
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}
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bool cmDependsFortran::CopyModule(const std::vector<std::string>& args)
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{
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// Implements
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//
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// $(CMAKE_COMMAND) -E cmake_copy_f90_mod input.mod output.mod.stamp
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// [compiler-id]
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//
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// Note that the case of the .mod file depends on the compiler. In
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// the future this copy could also account for the fact that some
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// compilers include a timestamp in the .mod file so it changes even
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// when the interface described in the module does not.
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|
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std::string mod = args[2];
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std::string stamp = args[3];
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std::string compilerId;
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if (args.size() >= 5) {
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compilerId = args[4];
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}
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std::string mod_dir = cmSystemTools::GetFilenamePath(mod);
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if (!mod_dir.empty()) {
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mod_dir += "/";
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}
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std::string mod_upper = mod_dir;
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mod_upper += cmSystemTools::UpperCase(cmSystemTools::GetFilenameName(mod));
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std::string mod_lower = mod_dir;
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mod_lower += cmSystemTools::LowerCase(cmSystemTools::GetFilenameName(mod));
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mod += ".mod";
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mod_upper += ".mod";
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mod_lower += ".mod";
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if (cmSystemTools::FileExists(mod_upper.c_str(), true)) {
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if (cmDependsFortran::ModulesDiffer(mod_upper.c_str(), stamp.c_str(),
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compilerId.c_str())) {
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if (!cmSystemTools::CopyFileAlways(mod_upper, stamp)) {
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std::cerr << "Error copying Fortran module from \"" << mod_upper
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<< "\" to \"" << stamp << "\".\n";
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return false;
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}
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}
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return true;
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}
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if (cmSystemTools::FileExists(mod_lower.c_str(), true)) {
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if (cmDependsFortran::ModulesDiffer(mod_lower.c_str(), stamp.c_str(),
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|
compilerId.c_str())) {
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if (!cmSystemTools::CopyFileAlways(mod_lower, stamp)) {
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std::cerr << "Error copying Fortran module from \"" << mod_lower
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<< "\" to \"" << stamp << "\".\n";
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return false;
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}
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}
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return true;
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}
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std::cerr << "Error copying Fortran module \"" << args[2] << "\". Tried \""
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<< mod_upper << "\" and \"" << mod_lower << "\".\n";
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return false;
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}
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|
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|
// Helper function to look for a short sequence in a stream. If this
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// is later used for longer sequences it should be re-written using an
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// efficient string search algorithm such as Boyer-Moore.
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static bool cmFortranStreamContainsSequence(std::istream& ifs, const char* seq,
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|
int len)
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|
{
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assert(len > 0);
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|
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|
int cur = 0;
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|
while (cur < len) {
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|
// Get the next character.
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|
int token = ifs.get();
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|
if (!ifs) {
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|
return false;
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|
}
|
|
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|
// Check the character.
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|
if (token == static_cast<int>(seq[cur])) {
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|
++cur;
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} else {
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|
// Assume the sequence has no repeating subsequence.
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|
cur = 0;
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|
}
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|
}
|
|
|
|
// The entire sequence was matched.
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|
return true;
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|
}
|
|
|
|
// Helper function to compare the remaining content in two streams.
|
|
static bool cmFortranStreamsDiffer(std::istream& ifs1, std::istream& ifs2)
|
|
{
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|
// Compare the remaining content.
|
|
for (;;) {
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|
int ifs1_c = ifs1.get();
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|
int ifs2_c = ifs2.get();
|
|
if (!ifs1 && !ifs2) {
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|
// We have reached the end of both streams simultaneously.
|
|
// The streams are identical.
|
|
return false;
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|
}
|
|
|
|
if (!ifs1 || !ifs2 || ifs1_c != ifs2_c) {
|
|
// We have reached the end of one stream before the other or
|
|
// found differing content. The streams are different.
|
|
break;
|
|
}
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
bool cmDependsFortran::ModulesDiffer(const char* modFile,
|
|
const char* stampFile,
|
|
const char* compilerId)
|
|
{
|
|
/*
|
|
gnu >= 4.9:
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|
A mod file is an ascii file compressed with gzip.
|
|
Compiling twice produces identical modules.
|
|
|
|
gnu < 4.9:
|
|
A mod file is an ascii file.
|
|
<bar.mod>
|
|
FORTRAN module created from /path/to/foo.f90 on Sun Dec 30 22:47:58 2007
|
|
If you edit this, you'll get what you deserve.
|
|
...
|
|
</bar.mod>
|
|
As you can see the first line contains the date.
|
|
|
|
intel:
|
|
A mod file is a binary file.
|
|
However, looking into both generated bar.mod files with a hex editor
|
|
shows that they differ only before a sequence linefeed-zero (0x0A 0x00)
|
|
which is located some bytes in front of the absoulte path to the source
|
|
file.
|
|
|
|
sun:
|
|
A mod file is a binary file. Compiling twice produces identical modules.
|
|
|
|
others:
|
|
TODO ...
|
|
*/
|
|
|
|
/* Compilers which do _not_ produce different mod content when the same
|
|
* source is compiled twice
|
|
* -SunPro
|
|
*/
|
|
if (strcmp(compilerId, "SunPro") == 0) {
|
|
return cmSystemTools::FilesDiffer(modFile, stampFile);
|
|
}
|
|
|
|
#if defined(_WIN32) || defined(__CYGWIN__)
|
|
cmsys::ifstream finModFile(modFile, std::ios::in | std::ios::binary);
|
|
cmsys::ifstream finStampFile(stampFile, std::ios::in | std::ios::binary);
|
|
#else
|
|
cmsys::ifstream finModFile(modFile);
|
|
cmsys::ifstream finStampFile(stampFile);
|
|
#endif
|
|
if (!finModFile || !finStampFile) {
|
|
// At least one of the files does not exist. The modules differ.
|
|
return true;
|
|
}
|
|
|
|
/* Compilers which _do_ produce different mod content when the same
|
|
* source is compiled twice
|
|
* -GNU
|
|
* -Intel
|
|
*
|
|
* Eat the stream content until all recompile only related changes
|
|
* are left behind.
|
|
*/
|
|
if (strcmp(compilerId, "GNU") == 0) {
|
|
// GNU Fortran 4.9 and later compress .mod files with gzip
|
|
// but also do not include a date so we can fall through to
|
|
// compare them without skipping any prefix.
|
|
unsigned char hdr[2];
|
|
bool okay = !finModFile.read(reinterpret_cast<char*>(hdr), 2).fail();
|
|
finModFile.seekg(0);
|
|
if (!okay || hdr[0] != 0x1f || hdr[1] != 0x8b) {
|
|
const char seq[1] = { '\n' };
|
|
const int seqlen = 1;
|
|
|
|
if (!cmFortranStreamContainsSequence(finModFile, seq, seqlen)) {
|
|
// The module is of unexpected format. Assume it is different.
|
|
std::cerr << compilerId << " fortran module " << modFile
|
|
<< " has unexpected format." << std::endl;
|
|
return true;
|
|
}
|
|
|
|
if (!cmFortranStreamContainsSequence(finStampFile, seq, seqlen)) {
|
|
// The stamp must differ if the sequence is not contained.
|
|
return true;
|
|
}
|
|
}
|
|
} else if (strcmp(compilerId, "Intel") == 0) {
|
|
const char seq[2] = { '\n', '\0' };
|
|
const int seqlen = 2;
|
|
|
|
// Skip the leading byte which appears to be a version number.
|
|
// We do not need to check for an error because the sequence search
|
|
// below will fail in that case.
|
|
finModFile.get();
|
|
finStampFile.get();
|
|
|
|
if (!cmFortranStreamContainsSequence(finModFile, seq, seqlen)) {
|
|
// The module is of unexpected format. Assume it is different.
|
|
std::cerr << compilerId << " fortran module " << modFile
|
|
<< " has unexpected format." << std::endl;
|
|
return true;
|
|
}
|
|
|
|
if (!cmFortranStreamContainsSequence(finStampFile, seq, seqlen)) {
|
|
// The stamp must differ if the sequence is not contained.
|
|
return true;
|
|
}
|
|
}
|
|
|
|
// Compare the remaining content. If no compiler id matched above,
|
|
// including the case none was given, this will compare the whole
|
|
// content.
|
|
if (!cmFortranStreamsDiffer(finModFile, finStampFile)) {
|
|
return false;
|
|
}
|
|
|
|
// The modules are different.
|
|
return true;
|
|
}
|