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kdeui: new KCrash::Backtrace to log backtraces

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for programs that cannot call drkonqi to show backtrace (such as
ksmserver or any non-GUI D-Bus service)

Signed-off-by: Ivailo Monev <xakepa10@gmail.com>
This commit is contained in:
Ivailo Monev 2022-12-09 12:23:52 +02:00
parent bdff3fa4e7
commit 7cfcbc3775
2 changed files with 6 additions and 4 deletions
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4
kdeui/util/kcrash.cpp
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@ -58,7 +58,7 @@ static const int s_signals[] = {
void KCrash::setFlags(KCrash::CrashFlags flags) void KCrash::setFlags(KCrash::CrashFlags flags)
{ {
s_flags = flags; s_flags = flags;
if (s_flags & KCrash::AutoRestart || s_flags & KCrash::DrKonqi) { if (s_flags & KCrash::AutoRestart || s_flags & KCrash::DrKonqi || s_flags & KCrash::Backtrace) {
// Default crash handler is required for the flags to work but one may be set already // Default crash handler is required for the flags to work but one may be set already
if (!s_crashHandler) { if (!s_crashHandler) {
KCmdLineArgs *args = KCmdLineArgs::parsedArgs("kde"); KCmdLineArgs *args = KCmdLineArgs::parsedArgs("kde");
@ -166,7 +166,7 @@ void KCrash::defaultCrashHandler(int sig)
} }
::system(systemargs.constData()); ::system(systemargs.constData());
} else { } else if (s_flags & KCrash::Backtrace) {
// NOTE: if HAVE_BACKTRACE is not defined kBacktrace() will return empty string // NOTE: if HAVE_BACKTRACE is not defined kBacktrace() will return empty string
#ifdef HAVE_BACKTRACE #ifdef HAVE_BACKTRACE
kError() << QCoreApplication::applicationName() << "crashed:\n" << kBacktrace(); kError() << QCoreApplication::applicationName() << "crashed:\n" << kBacktrace();

6
kdeui/util/kcrash.h
View file

@ -84,12 +84,14 @@ namespace KCrash
/** /**
* Options to determine how the default crash handler should behave. * Options to determine how the default crash handler should behave.
* @note AutoRestart takes priority over the other options even if they are set * @note Options are prioritised in their numerical order, i.e. if
* AutoRestart is set all other options are ignored.
*/ */
enum CrashFlag { enum CrashFlag {
AutoRestart = 1, ///< autorestart this application. Only sensible for KUniqueApplications. @since 4.1. AutoRestart = 1, ///< autorestart this application. Only sensible for KUniqueApplications. @since 4.1.
DrKonqi = 2, ///< launchers DrKonqi. @since 4.23. DrKonqi = 2, ///< launchers DrKonqi. @since 4.23.
NoRestart = 4 ///< tell DrKonqi not to restart the program. @since 4.23. NoRestart = 4, ///< tell DrKonqi not to restart the program. @since 4.23.
Backtrace = 8 ///< log backtrace if the program crashes. @since 4.23.
}; };
Q_DECLARE_FLAGS(CrashFlags, CrashFlag) Q_DECLARE_FLAGS(CrashFlags, CrashFlag)