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qmake: Fix building with lld with mingw makefiles

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lld for coff/mingw doesn't support linker scripts, which qmake used
for passing larger numbers of input file names to the linker.

Instead of using a fullblown linker script for this, just use a plain
response file, which both lld and binutils ld support.

Change-Id: I3aace7902fa6ca861a0a9fe67feaa236e7ea417b
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@qt.io>
This commit is contained in:
Martin Storsjö 2018-10-09 13:51:46 +03:00
parent 8d2deea49c
commit d92c25b1b4
1 changed files with 17 additions and 15 deletions
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32
qmake/generators/win32/mingw_make.cpp
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@ -131,22 +131,25 @@ QString MingwMakefileGenerator::installRoot() const
return QStringLiteral("$(INSTALL_ROOT:@msyshack@%=%)");
}
void createLdObjectScriptFile(const QString &fileName, const ProStringList &objList)
void createLdResponseFile(const QString &fileName, const ProStringList &objList)
{
QString filePath = Option::output_dir + QDir::separator() + fileName;
QFile file(filePath);
if (file.open(QIODevice::WriteOnly | QIODevice::Text)) {
QTextStream t(&file);
t << "INPUT(\n";
for (ProStringList::ConstIterator it = objList.constBegin(); it != objList.constEnd(); ++it) {
QString path = (*it).toQString();
// ### quoting?
if (QDir::isRelativePath(path))
t << "./" << path << endl;
else
t << path << endl;
// In response files, whitespace and special characters are
// escaped with a backslash; backslashes themselves can either
// be escaped into double backslashes, or, as this is a list of
// path names, converted to forward slashes.
path.replace(QLatin1Char('\\'), QLatin1String("/"))
.replace(QLatin1Char(' '), QLatin1String("\\ "))
.replace(QLatin1Char('\t'), QLatin1String("\\\t"))
.replace(QLatin1Char('"'), QLatin1String("\\\""))
.replace(QLatin1Char('\''), QLatin1String("\\'"));
t << path << endl;
}
t << ");\n";
t.flush();
file.close();
}
@ -307,14 +310,13 @@ void MingwMakefileGenerator::writeObjectsPart(QTextStream &t)
createArObjectScriptFile(ar_script_file, var("DEST_TARGET"), project->values("OBJECTS"));
objectsLinkLine = ar_cmd + " -M < " + escapeFilePath(ar_script_file);
} else {
QString ld_script_file = var("QMAKE_LINK_OBJECT_SCRIPT") + "." + var("TARGET");
if (!var("BUILD_NAME").isEmpty()) {
ld_script_file += "." + var("BUILD_NAME");
}
QString ld_response_file = var("QMAKE_LINK_OBJECT_SCRIPT") + "." + var("TARGET");
if (!var("BUILD_NAME").isEmpty())
ld_response_file += "." + var("BUILD_NAME");
if (!var("MAKEFILE").isEmpty())
ld_script_file += "." + var("MAKEFILE");
createLdObjectScriptFile(ld_script_file, project->values("OBJECTS"));
objectsLinkLine = escapeFilePath(ld_script_file);
ld_response_file += "." + var("MAKEFILE");
createLdResponseFile(ld_response_file, project->values("OBJECTS"));
objectsLinkLine = "@" + escapeFilePath(ld_response_file);
}
Win32MakefileGenerator::writeObjectsPart(t);
}