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220 lines
7.4 KiB
220 lines
7.4 KiB
/*****************************************************************
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* drkonqi - The KDE Crash Handler
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*
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* Copyright (C) 2000-2003 Hans Petter Bieker <bieker@kde.org>
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*****************************************************************/
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#include <tqlayout.h>
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#include <tqhbox.h>
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#include <tqlabel.h>
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#include <kdialog.h>
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#include <klocale.h>
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#include <kglobal.h>
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#include <kglobalsettings.h>
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#include <kfiledialog.h>
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#include <kmessagebox.h>
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#include <kpushbutton.h>
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#include <kstdguiitem.h>
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#include <ktextbrowser.h>
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#include <ktempfile.h>
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#include "backtrace.h"
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#include "krashconf.h"
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#include "debugger.h"
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#include "debugger.moc"
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KrashDebugger :: KrashDebugger (const KrashConfig *krashconf, TQWidget *parent, const char *name)
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: TQWidget( parent, name ),
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m_krashconf(krashconf),
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m_proctrace(0)
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{
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TQVBoxLayout *vbox = new TQVBoxLayout( this, 0, KDialog::marginHint() );
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vbox->setAutoAdd(TRUE);
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m_backtrace = new KTextBrowser(this);
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m_backtrace->setTextFormat(TQt::PlainText);
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m_backtrace->setFont(KGlobalSettings::fixedFont());
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TQWidget *w = new TQWidget( this );
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( new TQHBoxLayout( w, 0, KDialog::marginHint() ) )->setAutoAdd( true );
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m_status = new TQLabel( w );
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m_status->setSizePolicy( TQSizePolicy( TQSizePolicy::Expanding, TQSizePolicy::Preferred ) );
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//m_copyButton = new KPushButton( KStdGuiItem::copy(), w );
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KGuiItem item( i18n( "C&opy" ), TQString::fromLatin1( "editcopy" ) );
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m_copyButton = new KPushButton( item, w );
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connect( m_copyButton, TQT_SIGNAL( clicked() ), this, TQT_SLOT( slotCopy() ) );
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m_copyButton->setEnabled( false );
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m_saveButton = new KPushButton( m_krashconf->safeMode() ? KStdGuiItem::save() : KStdGuiItem::saveAs(), w );
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connect( m_saveButton, TQT_SIGNAL( clicked() ), this, TQT_SLOT( slotSave() ) );
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m_saveButton->setEnabled( false );
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}
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KrashDebugger :: ~KrashDebugger()
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{
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// This will SIGKILL gdb and SIGCONT program which crashed.
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// delete m_proctrace;
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}
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void KrashDebugger :: slotDone(const TQString& str)
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{
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m_status->setText(i18n("Done."));
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m_copyButton->setEnabled( true );
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m_saveButton->setEnabled( true );
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m_backtrace->setText( m_prependText + str ); // replace with possibly post-processed backtrace
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}
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void KrashDebugger :: slotCopy()
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{
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m_backtrace->selectAll();
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m_backtrace->copy();
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}
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void KrashDebugger :: slotSave()
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{
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if (m_krashconf->safeMode())
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{
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KTempFile tf(TQString::fromAscii("/tmp/"), TQString::fromAscii(".kcrash"), 0600);
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if (!tf.status())
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{
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*tf.textStream() << m_backtrace->text();
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tf.close();
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KMessageBox::information(this, i18n("Backtrace saved to %1").arg(tf.name()));
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}
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else
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{
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KMessageBox::sorry(this, i18n("Cannot create a file in which to save the backtrace"));
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}
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}
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else
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{
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TQString defname = m_krashconf->execName() + TQString::fromLatin1( ".kcrash" );
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if( defname.contains( '/' ))
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defname = defname.mid( defname.findRev( '/' ) + 1 );
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TQString filename = KFileDialog::getSaveFileName(defname, TQString::null, this, i18n("Select Filename"));
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if (!filename.isEmpty())
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{
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TQFile f(filename);
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if (f.exists()) {
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if (KMessageBox::Cancel ==
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KMessageBox::warningContinueCancel( 0,
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i18n( "A file named \"%1\" already exists. "
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"Are you sure you want to overwrite it?" ).arg( filename ),
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i18n( "Overwrite File?" ),
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i18n( "&Overwrite" ) ))
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return;
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}
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if (f.open(IO_WriteOnly))
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{
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TQTextStream ts(&f);
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ts << m_backtrace->text();
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f.close();
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}
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else
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{
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KMessageBox::sorry(this, i18n("Cannot open file %1 for writing").arg(filename));
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}
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}
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}
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}
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void KrashDebugger :: slotSomeError()
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{
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m_status->setText(i18n("Unable to create a valid backtrace."));
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m_backtrace->setText(i18n("This backtrace appears to be of no use.\n"
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"This is probably because your packages are built in a way "
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"which prevents creation of proper backtraces, or the stack frame "
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"was seriously corrupted in the crash.\n\n" )
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+ m_backtrace->text());
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}
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void KrashDebugger :: slotAppend(const TQString &str)
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{
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m_status->setText(i18n("Loading backtrace..."));
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// append doesn't work here because it will add a newline as well
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m_backtrace->setText(m_backtrace->text() + str);
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}
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void KrashDebugger :: showEvent(TQShowEvent *e)
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{
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TQWidget::showEvent(e);
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startDebugger();
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}
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void KrashDebugger :: startDebugger()
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{
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// Only start one copy
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if (m_proctrace || !m_backtrace->text().isEmpty())
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return;
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TQString msg;
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bool checks = performChecks( &msg );
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if( !checks && !m_krashconf->disableChecks())
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{
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m_backtrace->setText( m_prependText +
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i18n( "The following options are enabled:\n\n" )
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+ msg
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+ i18n( "\nAs the usage of these options is not recommended -"
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" because they can, in rare cases, be responsible for KDE problems - a backtrace"
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" will not be generated.\n"
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"You need to turn these options off and reproduce"
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" the problem again in order to get a backtrace.\n" ));
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m_status->setText( i18n( "Backtrace will not be created."));
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return;
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}
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if( !msg.isEmpty())
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{
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m_prependText += msg + '\n';
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m_backtrace->setText( m_prependText );
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}
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m_status->setText(i18n("Loading symbols..."));
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m_proctrace = new BackTrace(m_krashconf, TQT_TQOBJECT(this));
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connect(m_proctrace, TQT_SIGNAL(append(const TQString &)),
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TQT_SLOT(slotAppend(const TQString &)));
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connect(m_proctrace, TQT_SIGNAL(done(const TQString&)), TQT_SLOT(slotDone(const TQString&)));
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connect(m_proctrace, TQT_SIGNAL(someError()), TQT_SLOT(slotSomeError()));
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m_proctrace->start();
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}
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// this function check for "dangerous" settings, returns false
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// and message in case some of them are activated
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bool KrashDebugger::performChecks( TQString* msg )
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{
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bool ret = true;
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KConfig kdedcfg( TQString::fromLatin1( "kdedrc" ), true );
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kdedcfg.setGroup( "General" );
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if( kdedcfg.readBoolEntry( "DelayedCheck", false ))
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{
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// ret = false; it's not that dangerous
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*msg += i18n( "System configuration startup check disabled.\n" );
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}
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return ret;
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}
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