-
hjk authored
This is the approach directly linking to the lldb library. Change-Id: I5d51ad59d8292b46539a55da8e23918fb7de9a92 Reviewed-by:
hjk <hjk121@nokiamail.com>
hjk authoredThis is the approach directly linking to the lldb library. Change-Id: I5d51ad59d8292b46539a55da8e23918fb7de9a92 Reviewed-by:
hjk <hjk121@nokiamail.com>
main.cpp 4.71 KiB
/****************************************************************************
**
** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of Qt Creator.
**
** 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 Digia. For licensing terms and
** conditions see http://qt.digia.com/licensing. For further information
** use the contact form at http://qt.digia.com/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 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Digia gives you certain additional
** rights. These rights are described in the Digia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
****************************************************************************/
#include "lldbengineguest.h"
#include <QLocalSocket>
#include <QCoreApplication>
#include <QSocketNotifier>
#include <QQueue>
#include <cstdio>
// #define DO_STDIO_DEBUG 1
#ifdef DO_STDIO_DEBUG
#define D_STDIO0(x) qDebug(x)
#define D_STDIO1(x,a1) qDebug(x,a1)
#define D_STDIO2(x,a1,a2) qDebug(x,a1,a2)
#define D_STDIO3(x,a1,a2,a3) qDebug(x,a1,a2,a3)
#else
#define D_STDIO0(x)
#define D_STDIO1(x,a1)
#define D_STDIO2(x,a1,a2)
#define D_STDIO3(x,a1,a2,a3)
#endif
class Stdio : public QIODevice
{
Q_OBJECT
public:
QSocketNotifier notify;
Stdio()
: QIODevice()
, notify(fileno(stdin), QSocketNotifier::Read)
, buckethead(0)
{
setvbuf(stdin , NULL , _IONBF , 0);
setvbuf(stdout , NULL , _IONBF , 0);
setOpenMode(QIODevice::ReadWrite | QIODevice::Unbuffered);
connect(¬ify, SIGNAL(activated(int)), this, SLOT(activated()));
}
virtual qint64 bytesAvailable () const
{
qint64 r = QIODevice::bytesAvailable();
foreach (const QByteArray &bucket, buckets)
r += bucket.size();
r-= buckethead;
return r;
}
virtual qint64 readData (char * data, qint64 maxSize)
{
D_STDIO1("readData %lli",maxSize);
qint64 size = maxSize;
while (size > 0) {
if (!buckets.size()) {
D_STDIO1("done prematurely with %lli", maxSize - size);
return maxSize - size;
}
QByteArray &bucket = buckets.head();
if ((size + buckethead) >= bucket.size()) {
int d = bucket.size() - buckethead;
D_STDIO3("read (over bucket) d: %i buckethead: %i bucket.size(): %i",
d, buckethead, bucket.size());
memcpy(data, bucket.data() + buckethead, d);
data += d;
size -= d;
buckets.dequeue();
buckethead = 0;
} else {
D_STDIO1("read (in bucket) size: %lli", size);
memcpy(data, bucket.data() + buckethead, size);
data += size;
buckethead += size;
size = 0;
}
}
D_STDIO1("done with %lli",(maxSize - size));
return maxSize - size;
}
virtual qint64 writeData (const char * data, qint64 maxSize)
{
return ::write(fileno(stdout), data, maxSize);
}
QQueue<QByteArray> buckets;
int buckethead;
private slots:
void activated()
{
QByteArray a;
a.resize(1000);
int ret = ::read(fileno(stdin), a.data(), 1000);
if (ret == 0)
::exit(0);
assert(ret <= 1000);
D_STDIO1("activated %i", ret);
a.resize(ret);
buckets.enqueue(a);
emit readyRead();
}
};
int main(int argc, char **argv)
{
QCoreApplication app(argc, argv);
qDebug() << "guest engine operational";
Debugger::Internal::LldbEngineGuest lldb;
Stdio stdio;
lldb.setHostDevice(&stdio);
return app.exec();
}
extern "C" {
extern const unsigned char lldbVersionString[] __attribute__ ((used)) = "@(#)PROGRAM:lldb PROJECT:lldb-26" "\n";
extern const double lldbVersionNumber __attribute__ ((used)) = (double)26.;
extern const double LLDBVersionNumber __attribute__ ((used)) = (double)26.;
}
#include "main.moc"