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qt5base-lts/qmake/generators/win32/msvc_nmake.cpp
Marc Mutz aa37e67ef7 Port from qAsConst() to std::as_const() 
We've been requiring C++17 since Qt 6.0, and our qAsConst use finally
starts to bother us (QTBUG-99313), so time to port away from it
now.

Since qAsConst has exactly the same semantics as std::as_const (down
to rvalue treatment, constexpr'ness and noexcept'ness), there's really
nothing more to it than a global search-and-replace, with manual
unstaging of the actual definition and documentation in dist/,
src/corelib/doc/ and src/corelib/global/.

Task-number: QTBUG-99313
Change-Id: I4c7114444a325ad4e62d0fcbfd347d2bbfb21541
Reviewed-by: Ivan Solovev <ivan.solovev@qt.io>
2022-10-11 23:17:18 +02:00

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// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0
#include "msvc_nmake.h"
#include "option.h"
#include <qregularexpression.h>
#include <qdir.h>
#include <qdiriterator.h>
#include <qset.h>
#include <time.h>
QT_BEGIN_NAMESPACE
bool
NmakeMakefileGenerator::writeMakefile(QTextStream &t)
{
writeHeader(t);
if (writeDummyMakefile(t))
return true;
if(project->first("TEMPLATE") == "app" ||
project->first("TEMPLATE") == "lib" ||
project->first("TEMPLATE") == "aux") {
writeNmakeParts(t);
return MakefileGenerator::writeMakefile(t);
}
else if(project->first("TEMPLATE") == "subdirs") {
writeSubDirs(t);
return true;
}
return false;
}
void NmakeMakefileGenerator::writeSubMakeCall(QTextStream &t, const QString &callPrefix,
const QString &makeArguments)
{
// Pass MAKEFLAGS as environment variable to sub-make calls.
// Unlike other make tools nmake doesn't do this automatically.
t << "\n\t@set MAKEFLAGS=$(MAKEFLAGS)";
Win32MakefileGenerator::writeSubMakeCall(t, callPrefix, makeArguments);
}
ProStringList NmakeMakefileGenerator::extraSubTargetDependencies()
{
return { "$(MAKEFILE)" };
}
QString NmakeMakefileGenerator::defaultInstall(const QString &t)
{
QString ret = Win32MakefileGenerator::defaultInstall(t);
if (ret.isEmpty())
return ret;
const QString root = installRoot();
ProStringList &uninst = project->values(ProKey(t + ".uninstall"));
QString targetdir = fileFixify(project->first(ProKey(t + ".path")).toQString(), FileFixifyAbsolute);
if(targetdir.right(1) != Option::dir_sep)
targetdir += Option::dir_sep;
if (project->isActiveConfig("debug_info")) {
if (t == "dlltarget" || project->values(ProKey(t + ".CONFIG")).indexOf("no_dll") == -1) {
const QFileInfo targetFileInfo(project->first("DESTDIR") + project->first("TARGET")
+ project->first("TARGET_EXT"));
const QString pdb_target = targetFileInfo.completeBaseName() + ".pdb";
QString src_targ = (project->isEmpty("DESTDIR") ? QString("$(DESTDIR)") : project->first("DESTDIR")) + pdb_target;
QString dst_targ = filePrefixRoot(root, fileFixify(targetdir + pdb_target, FileFixifyAbsolute));
if(!ret.isEmpty())
ret += "\n\t";
ret += QString("-$(INSTALL_FILE) ") + escapeFilePath(src_targ) + ' ' + escapeFilePath(dst_targ);
if(!uninst.isEmpty())
uninst.append("\n\t");
uninst.append("-$(DEL_FILE) " + escapeFilePath(dst_targ));
}
}
return ret;
}
QStringList &NmakeMakefileGenerator::findDependencies(const QString &file)
{
QStringList &aList = MakefileGenerator::findDependencies(file);
for(QStringList::Iterator it = Option::cpp_ext.begin(); it != Option::cpp_ext.end(); ++it) {
if(file.endsWith(*it)) {
if(!precompObj.isEmpty() && !aList.contains(precompObj))
aList += precompObj;
break;
}
}
for (QStringList::Iterator it = Option::c_ext.begin(); it != Option::c_ext.end(); ++it) {
if (file.endsWith(*it)) {
if (!precompObjC.isEmpty() && !aList.contains(precompObjC))
aList += precompObjC;
break;
}
}
return aList;
}
void NmakeMakefileGenerator::writeNmakeParts(QTextStream &t)
{
writeStandardParts(t);
// precompiled header
if(usePCH) {
QString precompRule = QString("-c -Yc -Fp%1 -Fo%2")
.arg(escapeFilePath(precompPch), escapeFilePath(precompObj));
t << escapeDependencyPath(precompObj) << ": " << escapeDependencyPath(precompH) << ' '
<< finalizeDependencyPaths(findDependencies(precompH)).join(" \\\n\t\t")
<< "\n\t$(CXX) " + precompRule +" $(CXXFLAGS) $(INCPATH) -TP "
<< escapeFilePath(precompH) << Qt::endl << Qt::endl;
}
if (usePCHC) {
QString precompRuleC = QString("-c -Yc -Fp%1 -Fo%2")
.arg(escapeFilePath(precompPchC), escapeFilePath(precompObjC));
t << escapeDependencyPath(precompObjC) << ": " << escapeDependencyPath(precompH) << ' '
<< finalizeDependencyPaths(findDependencies(precompH)).join(" \\\n\t\t")
<< "\n\t$(CC) " + precompRuleC +" $(CFLAGS) $(INCPATH) -TC "
<< escapeFilePath(precompH) << Qt::endl << Qt::endl;
}
}
QString NmakeMakefileGenerator::var(const ProKey &value) const
{
if (usePCH || usePCHC) {
const bool isRunC = (value == "QMAKE_RUN_CC_IMP_BATCH"
|| value == "QMAKE_RUN_CC_IMP"
|| value == "QMAKE_RUN_CC");
const bool isRunCpp = (value == "QMAKE_RUN_CXX_IMP_BATCH"
|| value == "QMAKE_RUN_CXX_IMP"
|| value == "QMAKE_RUN_CXX");
if ((isRunCpp && usePCH) || (isRunC && usePCHC)) {
QString precompH_f = escapeFilePath(fileFixify(precompH, FileFixifyBackwards));
QString precompRule = QString("-c -FI%1 -Yu%2 -Fp%3")
.arg(precompH_f, precompH_f, escapeFilePath(isRunC ? precompPchC : precompPch));
// ### For clang_cl 8 we force inline methods to be compiled here instead
// linking them from a pch.o file. We do this by pretending we are also doing
// the pch.o generation step.
if (project->isActiveConfig("clang_cl"))
precompRule += QString(" -Xclang -building-pch-with-obj");
QString p = MakefileGenerator::var(value);
p.replace(QLatin1String("-c"), precompRule);
return p;
}
}
// Normal val
return MakefileGenerator::var(value);
}
void NmakeMakefileGenerator::suppressBuiltinRules(QTextStream &) const
{
}
void NmakeMakefileGenerator::init()
{
/* this should probably not be here, but I'm using it to wrap the .t files */
if(project->first("TEMPLATE") == "app")
project->values("QMAKE_APP_FLAG").append("1");
else if(project->first("TEMPLATE") == "lib")
project->values("QMAKE_LIB_FLAG").append("1");
else if(project->first("TEMPLATE") == "subdirs") {
MakefileGenerator::init();
if(project->values("MAKEFILE").isEmpty())
project->values("MAKEFILE").append("Makefile");
return;
}
processVars();
project->values("LIBS") += project->values("RES_FILE");
if (!project->values("DEF_FILE").isEmpty()) {
QString defFileName = fileFixify(project->first("DEF_FILE").toQString());
project->values("QMAKE_LFLAGS").append(QString("/DEF:") + escapeFilePath(defFileName));
}
// set /VERSION for EXE/DLL header
ProString major_minor = project->first("VERSION_PE_HEADER");
if (major_minor.isEmpty()) {
ProString version = project->first("VERSION");
if (!version.isEmpty()) {
int firstDot = version.indexOf(".");
int secondDot = version.indexOf(".", firstDot + 1);
major_minor = version.left(secondDot);
}
}
if (!major_minor.isEmpty())
project->values("QMAKE_LFLAGS").append("/VERSION:" + major_minor);
if (project->isEmpty("QMAKE_LINK_O_FLAG"))
project->values("QMAKE_LINK_O_FLAG").append("/OUT:");
// Base class init!
MakefileGenerator::init();
// Setup PCH variables
precompH = project->first("PRECOMPILED_HEADER").toQString();
usePCH = !precompH.isEmpty() && project->isActiveConfig("precompile_header");
usePCHC = !precompH.isEmpty() && project->isActiveConfig("precompile_header_c");
if (usePCH) {
// Created files
precompObj = var("PRECOMPILED_DIR") + project->first("TARGET") + "_pch" + Option::obj_ext;
precompPch = var("PRECOMPILED_DIR") + project->first("TARGET") + "_pch.pch";
// Add linking of precompObj (required for whole precompiled classes)
// ### For clang_cl we currently let inline methods be generated in the normal objects,
// since the PCH object is buggy (as of clang 8.0.0)
if (!project->isActiveConfig("clang_cl"))
project->values("OBJECTS") += precompObj;
// Add pch file to cleanup
project->values("QMAKE_CLEAN") += precompPch;
// Return to variable pool
project->values("PRECOMPILED_OBJECT") = ProStringList(precompObj);
project->values("PRECOMPILED_PCH") = ProStringList(precompPch);
}
if (usePCHC) {
precompObjC = var("PRECOMPILED_DIR") + project->first("TARGET") + "_pch_c" + Option::obj_ext;
precompPchC = var("PRECOMPILED_DIR") + project->first("TARGET") + "_pch_c.pch";
if (!project->isActiveConfig("clang_cl"))
project->values("OBJECTS") += precompObjC;
project->values("QMAKE_CLEAN") += precompPchC;
project->values("PRECOMPILED_OBJECT_C") = ProStringList(precompObjC);
project->values("PRECOMPILED_PCH_C") = ProStringList(precompPchC);
}
const QFileInfo targetFileInfo(project->first("DESTDIR") + project->first("TARGET")
+ project->first("TARGET_EXT"));
const ProString targetBase = targetFileInfo.path() + '/' + targetFileInfo.completeBaseName();
if (project->first("TEMPLATE") == "lib" && project->isActiveConfig("shared")) {
project->values("QMAKE_CLEAN").append(targetBase + ".exp");
project->values("QMAKE_DISTCLEAN").append(targetBase + ".lib");
}
if (project->isActiveConfig("debug_info")) {
QString pdbfile;
QString distPdbFile = targetBase + ".pdb";
if (project->isActiveConfig("staticlib")) {
// For static libraries, the compiler's pdb file and the dist pdb file are the same.
pdbfile = distPdbFile;
} else {
// Use $${TARGET}.vc.pdb in the OBJECTS_DIR for the compiler and
// $${TARGET}.pdb (the default) for the linker.
pdbfile = var("OBJECTS_DIR") + project->first("TARGET") + ".vc.pdb";
}
QString escapedPdbFile = escapeFilePath(pdbfile);
project->values("QMAKE_CFLAGS").append("/Fd" + escapedPdbFile);
project->values("QMAKE_CXXFLAGS").append("/Fd" + escapedPdbFile);
project->values("QMAKE_CLEAN").append(pdbfile);
project->values("QMAKE_DISTCLEAN").append(distPdbFile);
}
if (project->isActiveConfig("debug")) {
project->values("QMAKE_CLEAN").append(targetBase + ".ilk");
project->values("QMAKE_CLEAN").append(targetBase + ".idb");
}
if (project->values("QMAKE_APP_FLAG").isEmpty() && project->isActiveConfig("dll")) {
ProStringList &defines = project->values("DEFINES");
if (!defines.contains("_WINDLL"))
defines.append("_WINDLL");
}
}
QStringList NmakeMakefileGenerator::sourceFilesForImplicitRulesFilter()
{
QStringList filter;
const QChar wildcard = QLatin1Char('*');
for (const QString &ext : std::as_const(Option::c_ext))
filter << wildcard + ext;
for (const QString &ext : std::as_const(Option::cpp_ext))
filter << wildcard + ext;
return filter;
}
void NmakeMakefileGenerator::writeImplicitRulesPart(QTextStream &t)
{
t << "####### Implicit rules\n\n";
t << ".SUFFIXES:";
for(QStringList::Iterator cit = Option::c_ext.begin(); cit != Option::c_ext.end(); ++cit)
t << " " << (*cit);
for(QStringList::Iterator cppit = Option::cpp_ext.begin(); cppit != Option::cpp_ext.end(); ++cppit)
t << " " << (*cppit);
t << Qt::endl << Qt::endl;
bool useInferenceRules = !project->isActiveConfig("no_batch");
QSet<QString> source_directories;
if (useInferenceRules) {
source_directories.insert(".");
static const char * const directories[] = { "UI_SOURCES_DIR", "UI_DIR", nullptr };
for (int y = 0; directories[y]; y++) {
QString dirTemp = project->first(directories[y]).toQString();
if (dirTemp.endsWith("\\"))
dirTemp.truncate(dirTemp.size()-1);
if(!dirTemp.isEmpty())
source_directories.insert(dirTemp);
}
static const char * const srcs[] = { "SOURCES", "GENERATED_SOURCES", nullptr };
for (int x = 0; srcs[x]; x++) {
const ProStringList &l = project->values(srcs[x]);
for (ProStringList::ConstIterator sit = l.begin(); sit != l.end(); ++sit) {
QString sep = "\\";
if((*sit).indexOf(sep) == -1)
sep = "/";
QString dir = (*sit).toQString().section(sep, 0, -2);
if (!dir.isEmpty())
source_directories.insert(dir);
}
}
// nmake's inference rules might pick up the wrong files when encountering source files with
// the same name in different directories. In this situation, turn inference rules off.
QHash<QString, QString> fileNames;
bool duplicatesFound = false;
const QStringList sourceFilesFilter = sourceFilesForImplicitRulesFilter();
QStringList fixifiedSourceDirs = fileFixify(QList<QString>(source_directories.constBegin(), source_directories.constEnd()), FileFixifyAbsolute);
fixifiedSourceDirs.removeDuplicates();
for (const QString &sourceDir : std::as_const(fixifiedSourceDirs)) {
QDirIterator dit(sourceDir, sourceFilesFilter, QDir::Files | QDir::NoDotAndDotDot);
while (dit.hasNext()) {
const QFileInfo fi = dit.nextFileInfo();
QString &duplicate = fileNames[fi.completeBaseName()];
if (duplicate.isNull()) {
duplicate = fi.filePath();
} else {
warn_msg(WarnLogic, "%s conflicts with %s", qPrintable(duplicate),
qPrintable(fi.filePath()));
duplicatesFound = true;
}
}
}
if (duplicatesFound) {
useInferenceRules = false;
warn_msg(WarnLogic, "Automatically turning off nmake's inference rules. (CONFIG += no_batch)");
}
}
if (useInferenceRules) {
// Batchmode doesn't use the non implicit rules QMAKE_RUN_CXX & QMAKE_RUN_CC
project->variables().remove("QMAKE_RUN_CXX");
project->variables().remove("QMAKE_RUN_CC");
for (const QString &sourceDir : std::as_const(source_directories)) {
if (sourceDir.isEmpty())
continue;
QString objDir = var("OBJECTS_DIR");
if (objDir == ".\\")
objDir = "";
for(QStringList::Iterator cppit = Option::cpp_ext.begin(); cppit != Option::cpp_ext.end(); ++cppit)
t << '{' << escapeDependencyPath(sourceDir) << '}' << (*cppit)
<< '{' << escapeDependencyPath(objDir) << '}' << Option::obj_ext << "::\n\t"
<< var("QMAKE_RUN_CXX_IMP_BATCH").replace(QRegularExpression("\\$@"), fileVar("OBJECTS_DIR"))
<< "\n\t$<\n<<\n\n";
for(QStringList::Iterator cit = Option::c_ext.begin(); cit != Option::c_ext.end(); ++cit)
t << '{' << escapeDependencyPath(sourceDir) << '}' << (*cit)
<< '{' << escapeDependencyPath(objDir) << '}' << Option::obj_ext << "::\n\t"
<< var("QMAKE_RUN_CC_IMP_BATCH").replace(QRegularExpression("\\$@"), fileVar("OBJECTS_DIR"))
<< "\n\t$<\n<<\n\n";
}
} else {
for(QStringList::Iterator cppit = Option::cpp_ext.begin(); cppit != Option::cpp_ext.end(); ++cppit)
t << (*cppit) << Option::obj_ext << ":\n\t" << var("QMAKE_RUN_CXX_IMP") << Qt::endl << Qt::endl;
for(QStringList::Iterator cit = Option::c_ext.begin(); cit != Option::c_ext.end(); ++cit)
t << (*cit) << Option::obj_ext << ":\n\t" << var("QMAKE_RUN_CC_IMP") << Qt::endl << Qt::endl;
}
}
void NmakeMakefileGenerator::writeBuildRulesPart(QTextStream &t)
{
const ProString templateName = project->first("TEMPLATE");
t << "first: all\n";
t << "all: " << escapeDependencyPath(fileFixify(Option::output.fileName()))
<< ' ' << depVar("ALL_DEPS") << ' ' << depVar("DEST_TARGET") << "\n\n";
t << depVar("DEST_TARGET") << ": "
<< depVar("PRE_TARGETDEPS") << " $(OBJECTS) " << depVar("POST_TARGETDEPS");
if (templateName == "aux") {
t << "\n\n";
return;
}
if(!project->isEmpty("QMAKE_PRE_LINK"))
t << "\n\t" <<var("QMAKE_PRE_LINK");
if(project->isActiveConfig("staticlib")) {
t << "\n\t$(LIBAPP) $(LIBFLAGS) " << var("QMAKE_LINK_O_FLAG") << "$(DESTDIR_TARGET) @<<\n\t ";
writeResponseFileFiles(t, project->values("OBJECTS"));
t << "<<";
} else {
const bool embedManifest = ((templateName == "app" && project->isActiveConfig("embed_manifest_exe"))
|| (templateName == "lib" && project->isActiveConfig("embed_manifest_dll")
&& !(project->isActiveConfig("plugin") && project->isActiveConfig("no_plugin_manifest"))
));
if (embedManifest) {
bool generateManifest = false;
const QString target = var("DEST_TARGET");
QString manifest = project->first("QMAKE_MANIFEST").toQString();
QString extraLFlags;
const bool linkerSupportsEmbedding = (msvcVersion() >= 1200);
if (manifest.isEmpty()) {
generateManifest = true;
if (linkerSupportsEmbedding) {
extraLFlags = "/MANIFEST:embed";
} else {
manifest = target + ".embed.manifest";
extraLFlags += "/MANIFEST /MANIFESTFILE:" + escapeFilePath(manifest);
project->values("QMAKE_CLEAN") << manifest;
}
} else {
manifest = fileFixify(manifest);
if (linkerSupportsEmbedding)
extraLFlags = "/MANIFEST:embed /MANIFESTINPUT:" + escapeFilePath(manifest);
}
const QString resourceId = (templateName == "app") ? "1" : "2";
const bool incrementalLinking = project->values("QMAKE_LFLAGS").toQStringList().filter(QRegularExpression("(/|-)INCREMENTAL:NO")).isEmpty();
if (incrementalLinking && !linkerSupportsEmbedding) {
// Link a resource that contains the manifest without modifying the exe/dll after linking.
QString manifest_rc = target + "_manifest.rc";
QString manifest_res = target + "_manifest.res";
project->values("QMAKE_CLEAN") << manifest_rc << manifest_res;
manifest_rc = escapeFilePath(manifest_rc);
manifest_res = escapeFilePath(manifest_res);
t << "\n\techo " << resourceId
<< " /* CREATEPROCESS_MANIFEST_RESOURCE_ID */ 24 /* RT_MANIFEST */ "
<< cQuoted(manifest) << '>' << manifest_rc;
if (generateManifest) {
manifest = escapeFilePath(manifest);
QString manifest_bak = escapeFilePath(target + "_manifest.bak");
project->values("QMAKE_CLEAN") << manifest_bak;
t << "\n\tif not exist $(DESTDIR_TARGET) if exist " << manifest
<< " del " << manifest;
t << "\n\tif exist " << manifest << " copy /Y " << manifest << ' ' << manifest_bak;
const QString extraInlineFileContent = "\n!IF EXIST(" + manifest_res + ")\n" + manifest_res + "\n!ENDIF";
t << "\n\t";
writeLinkCommand(t, extraLFlags, extraInlineFileContent);
t << "\n\tif exist " << manifest_bak << " fc /b " << manifest << ' ' << manifest_bak << " >NUL || del " << manifest_bak;
t << "\n\tif not exist " << manifest_bak << " rc.exe /fo" << manifest_res << ' ' << manifest_rc;
t << "\n\tif not exist " << manifest_bak << ' ';
writeLinkCommand(t, extraLFlags, manifest_res);
t << "\n\tif exist " << manifest_bak << " del " << manifest_bak;
} else {
t << "\n\trc.exe /fo" << manifest_res << " " << manifest_rc;
t << "\n\t";
writeLinkCommand(t, extraLFlags, manifest_res);
}
} else {
// directly embed the manifest in the executable after linking
t << "\n\t";
writeLinkCommand(t, extraLFlags);
if (!linkerSupportsEmbedding) {
t << "\n\tmt.exe /nologo /manifest " << escapeFilePath(manifest)
<< " /outputresource:$(DESTDIR_TARGET);" << resourceId;
}
}
} else {
t << "\n\t";
writeLinkCommand(t);
}
}
if(!project->isEmpty("QMAKE_POST_LINK")) {
t << "\n\t" << var("QMAKE_POST_LINK");
}
t << Qt::endl;
}
void NmakeMakefileGenerator::writeLinkCommand(QTextStream &t, const QString &extraFlags, const QString &extraInlineFileContent)
{
t << "$(LINKER) $(LFLAGS)";
if (!extraFlags.isEmpty())
t << ' ' << extraFlags;
t << " " << var("QMAKE_LINK_O_FLAG") << "$(DESTDIR_TARGET) @<<\n";
writeResponseFileFiles(t, project->values("OBJECTS"));
t << "$(LIBS)\n";
if (!extraInlineFileContent.isEmpty())
t << extraInlineFileContent << '\n';
t << "<<";
}
void NmakeMakefileGenerator::writeResponseFileFiles(QTextStream &t, const ProStringList &files)
{
// Add line breaks in file lists in reponse files to work around LNK1170.
// The actual line length limit is 131070, but let's use a smaller limit
// in case other tools are similarly hampered.
const int maxLineLength = 1000;
int len = 0;
for (const ProString &file : files) {
const ProString escapedFilePath = escapeFilePath(file);
if (len) {
if (len + escapedFilePath.length() > maxLineLength) {
t << '\n';
len = 0;
} else {
t << ' ';
len++;
}
}
t << escapedFilePath;
len += escapedFilePath.length();
}
t << '\n';
}
int NmakeMakefileGenerator::msvcVersion() const
{
const int fallbackVersion = 800; // Visual Studio 2005
const QString ver = project->first(ProKey("MSVC_VER")).toQString();
bool ok;
float f = ver.toFloat(&ok);
return ok ? int(f * 100) : fallbackVersion;
}
QT_END_NAMESPACE
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