Make LLDB skip server-client roundtrip for signals that don't require any actions
If QPassSignals packaet is supported by lldb-server, lldb-client will
utilize it and ask the server to ignore signals that don't require stops
or notifications.
Such signals will be immediately re-injected into inferior to continue
normal execution.
Differential Revision: https://reviews.llvm.org/D30520
llvm-svn: 297231
diff --git a/lldb/source/Plugins/Process/gdb-remote/GDBRemoteCommunicationClient.h b/lldb/source/Plugins/Process/gdb-remote/GDBRemoteCommunicationClient.h
index 83162a6..63b9708 100644
--- a/lldb/source/Plugins/Process/gdb-remote/GDBRemoteCommunicationClient.h
+++ b/lldb/source/Plugins/Process/gdb-remote/GDBRemoteCommunicationClient.h
@@ -347,6 +347,8 @@
bool GetEchoSupported();
+ bool GetQPassSignalsSupported();
+
bool GetAugmentedLibrariesSVR4ReadSupported();
bool GetQXferFeaturesReadSupported();
@@ -450,6 +452,9 @@
void ServeSymbolLookups(lldb_private::Process *process);
+ // Sends QPassSignals packet to the server with given signals to ignore.
+ Error SendSignalsToIgnore(llvm::ArrayRef<int32_t> signals);
+
//------------------------------------------------------------------
/// Return the feature set supported by the gdb-remote server.
///
@@ -527,6 +532,7 @@
LazyBool m_supports_jThreadExtendedInfo;
LazyBool m_supports_jLoadedDynamicLibrariesInfos;
LazyBool m_supports_jGetSharedCacheInfo;
+ LazyBool m_supports_QPassSignals;
bool m_supports_qProcessInfoPID : 1, m_supports_qfProcessInfo : 1,
m_supports_qUserName : 1, m_supports_qGroupName : 1,