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track shared library events even on gdb < 7

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this is to update breakpoint, source and module lists automatically.

also remove the now pointless -break-list on every stop.

Reviewed-by: hjk
This commit is contained in:
Oswald Buddenhagen
2009-11-10 12:40:23 +01:00
parent de9438df0c
commit cb4b139148
1 changed files with 31 additions and 26 deletions
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57
src/plugins/debugger/gdb/gdbengine.cpp
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@@ -1153,6 +1153,33 @@ void GdbEngine::handleStopResponse(const GdbMi &data)
} }
setState(InferiorStopped); setState(InferiorStopped);
// Due to LD_PRELOADing the dumpers, these events can occur even before
// reaching the entry point. So handle it before the entry point hacks below.
if (reason.isEmpty() && m_gdbVersion < 70000 && !m_isMacGdb) {
// On Linux it reports "Stopped due to shared library event\n", but
// on Windows it simply forgets about it. Thus, we identify the response
// based on it having no frame information.
if (!data.findChild("frame").isValid()) {
m_modulesListOutdated = m_sourcesListOutdated = true;
// Each stop causes a roundtrip and button flicker, so prevent
// a flood of useless stops. Will be automatically re-enabled.
postCommand(_("set stop-on-solib-events 0"));
#if 0
// The related code (handleAqcuiredInferior()) is disabled as well.
if (theDebuggerBoolSetting(SelectedPluginBreakpoints)) {
QString dataStr = _(data.toString());
debugMessage(_("SHARED LIBRARY EVENT: ") + dataStr);
QString pat = theDebuggerStringSetting(SelectedPluginBreakpointsPattern);
debugMessage(_("PATTERN: ") + pat);
postCommand(_("sharedlibrary ") + pat);
showStatusMessage(tr("Loading %1...").arg(dataStr));
}
#endif
continueInferiorInternal();
return;
}
}
#ifdef Q_OS_LINUX #ifdef Q_OS_LINUX
if (!m_entryPoint.isEmpty()) { if (!m_entryPoint.isEmpty()) {
GdbMi frameData = data.findChild("frame"); GdbMi frameData = data.findChild("frame");
@@ -1178,27 +1205,6 @@ void GdbEngine::handleStopResponse(const GdbMi &data)
} }
#endif #endif
#if 0
// The related code (handleAqcuiredInferior()) is disabled as well.
// When re-enabling, try something to avoid spurious source list updates
// due to unrelated no-reason stops.
const QByteArray &msg = data.findChild("consolestreamoutput").data();
if (msg.contains("Stopped due to shared library event") || reason.isEmpty()) {
m_modulesListOutdated = m_sourcesListOutdated = true;
if (theDebuggerBoolSetting(SelectedPluginBreakpoints)) {
QString dataStr = _(data.toString());
debugMessage(_("SHARED LIBRARY EVENT: ") + dataStr);
QString pat = theDebuggerStringSetting(SelectedPluginBreakpointsPattern);
debugMessage(_("PATTERN: ") + pat);
postCommand(_("sharedlibrary ") + pat);
continueInferiorInternal();
showStatusMessage(tr("Loading %1...").arg(dataStr));
return;
}
// fall through
}
#endif
// seen on XP after removing a breakpoint while running // seen on XP after removing a breakpoint while running
// >945*stopped,reason="signal-received",signal-name="SIGTRAP", // >945*stopped,reason="signal-received",signal-name="SIGTRAP",
// signal-meaning="Trace/breakpoint trap",thread-id="2", // signal-meaning="Trace/breakpoint trap",thread-id="2",
@@ -1269,11 +1275,6 @@ void GdbEngine::handleStop1(const GdbMi &data)
if (m_sourcesListOutdated) if (m_sourcesListOutdated)
reloadSourceFilesInternal(); // This needs to be done before fullName() may need it reloadSourceFilesInternal(); // This needs to be done before fullName() may need it
// Older gdb versions do not produce "library loaded" messages
// so the breakpoint update is not triggered.
if (m_gdbVersion < 70000 && !m_isMacGdb)
postCommand(_("-break-list"), CB(handleBreakList));
QByteArray reason = data.findChild("reason").data(); QByteArray reason = data.findChild("reason").data();
if (reason == "breakpoint-hit") { if (reason == "breakpoint-hit") {
showStatusMessage(tr("Stopped at breakpoint.")); showStatusMessage(tr("Stopped at breakpoint."));
@@ -2249,6 +2250,8 @@ void GdbEngine::reloadModulesInternal()
{ {
m_modulesListOutdated = false; m_modulesListOutdated = false;
postCommand(_("info shared"), NeedsStop, CB(handleModulesList)); postCommand(_("info shared"), NeedsStop, CB(handleModulesList));
if (m_gdbVersion < 70000 && !m_isMacGdb)
postCommand(_("set stop-on-solib-events 1"));
} }
void GdbEngine::handleModulesList(const GdbResponse &response) void GdbEngine::handleModulesList(const GdbResponse &response)
@@ -2317,6 +2320,8 @@ void GdbEngine::reloadSourceFilesInternal()
m_sourcesListOutdated = false; m_sourcesListOutdated = false;
postCommand(_("-file-list-exec-source-files"), NeedsStop, CB(handleQuerySources)); postCommand(_("-file-list-exec-source-files"), NeedsStop, CB(handleQuerySources));
postCommand(_("-break-list"), CB(handleBreakList)); postCommand(_("-break-list"), CB(handleBreakList));
if (m_gdbVersion < 70000 && !m_isMacGdb)
postCommand(_("set stop-on-solib-events 1"));
} }