qt5base-lts/mkspecs/macx-ios-clang/rename_main.sh
Jani Heikkinen cb95fff1c7 Fixed license headers
Change-Id: Ibebe1318d1c2de97601aa07269705c87737083ee
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@theqtcompany.com>
2015-02-17 18:46:09 +00:00

76 lines
2.9 KiB
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Executable File

#!/bin/bash
#############################################################################
##
## Copyright (C) 2015 The Qt Company Ltd.
## Contact: http://www.qt.io/licensing/
##
## This file is the build configuration utility of the Qt Toolkit.
##
## $QT_BEGIN_LICENSE:LGPL21$
## Commercial License Usage
## Licensees holding valid commercial Qt licenses may use this file in
## accordance with the commercial license agreement provided with the
## Software or, alternatively, in accordance with the terms contained in
## a written agreement between you and The Qt Company. For licensing terms
## and conditions see http://www.qt.io/terms-conditions. For further
## information use the contact form at http://www.qt.io/contact-us.
##
## GNU Lesser General Public License Usage
## Alternatively, this file may be used under the terms of the GNU Lesser
## General Public License version 2.1 or version 3 as published by the Free
## Software Foundation and appearing in the file LICENSE.LGPLv21 and
## LICENSE.LGPLv3 included in the packaging of this file. Please review the
## following information to ensure the GNU Lesser General Public License
## requirements will be met: https://www.gnu.org/licenses/lgpl.html and
## http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
##
## As a special exception, The Qt Company gives you certain additional
## rights. These rights are described in The Qt Company LGPL Exception
## version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
##
## $QT_END_LICENSE$
##
#############################################################################
if [ $# -ne 2 ]; then
echo "$0: wrong number of arguments for internal tool used by iOS mkspec"
else
arch_paths=""
for a in $2; do
arch_paths="$arch_paths $1/$a"
done
for f in $(find $arch_paths -name '*.o'); do
# Skip object files without the _main symbol
nm $f 2>/dev/null | grep -q 'T _main$' || continue
fname=${f#$1/}
file -b $f | grep -qi 'llvm bit-code' && \
(cat \
<<EOF >&2
$f:: error: The file '$fname' contains LLVM bitcode, not object code. Automatic main() redirection could not be applied.
note: This is most likely due to the use of link-time optimization (-flto). Please disable LTO, or work around the \
issue by manually renaming your main() function to qtmn():
#ifdef Q_OS_IOS
extern "C" int qtmn(int argc, char *argv[])
#else
int main(int argc, char *argv[])
#endif
EOF
) && exit 1
echo "Found main() in $fname"
strings -t d - $f | grep '_main\(\.eh\)\?$' | while read match; do
offset=$(echo $match | cut -d ' ' -f 1)
symbol=$(echo $match | cut -d ' ' -f 2)
echo " Renaming '$symbol' at offset $offset to '${symbol/main/qtmn}'"
# In-place rename the string (keeping the same length)
printf '_qtmn' | dd of=$f bs=1 seek=$offset conv=notrunc >/dev/null 2>&1
done
done
fi