Remote Non-Stop Support
Summary:
This patch is the beginnings of support for Non-stop mode in the remote protocol. Letting a user examine stopped threads, while other threads execute freely.
Non-stop mode is enabled using the setting target.non-stop-mode, which sends a QNonStop packet when establishing the remote connection.
Changes are also made to treat the '?' stop reply packet differently in non-stop mode, according to spec https://sourceware.org/gdb/current/onlinedocs/gdb/Remote-Non_002dStop.html#Remote-Non_002dStop.
A setting for querying the remote for default thread on setup is also included.
Handling of '%' async notification packets will be added next.
Reviewers: clayborg
Subscribers: lldb-commits, ADodds, ted, deepak2427
Differential Revision: http://reviews.llvm.org/D9656
llvm-svn: 237239
diff --git a/lldb/source/Target/Target.cpp b/lldb/source/Target/Target.cpp
index 03a5845..1071c00 100644
--- a/lldb/source/Target/Target.cpp
+++ b/lldb/source/Target/Target.cpp
@@ -2978,6 +2978,7 @@
{ "display-expression-in-crashlogs" , OptionValue::eTypeBoolean , false, false, NULL, NULL, "Expressions that crash will show up in crash logs if the host system supports executable specific crash log strings and this setting is set to true." },
{ "trap-handler-names" , OptionValue::eTypeArray , true, OptionValue::eTypeString, NULL, NULL, "A list of trap handler function names, e.g. a common Unix user process one is _sigtramp." },
{ "display-runtime-support-values" , OptionValue::eTypeBoolean , false, false, NULL, NULL, "If true, LLDB will show variables that are meant to support the operation of a language's runtime support." },
+ { "non-stop-mode" , OptionValue::eTypeBoolean , false, 0, NULL, NULL, "Disable lock-step debugging, instead control threads independently." },
{ NULL , OptionValue::eTypeInvalid , false, 0 , NULL, NULL, NULL }
};
@@ -3016,7 +3017,8 @@
ePropertyMemoryModuleLoadLevel,
ePropertyDisplayExpressionsInCrashlogs,
ePropertyTrapHandlerNames,
- ePropertyDisplayRuntimeSupportValues
+ ePropertyDisplayRuntimeSupportValues,
+ ePropertyNonStopModeEnabled
};
@@ -3515,6 +3517,13 @@
m_collection_sp->SetPropertyAtIndexAsBoolean (NULL, idx, b);
}
+bool
+TargetProperties::GetNonStopModeEnabled () const
+{
+ const uint32_t idx = ePropertyNonStopModeEnabled;
+ return m_collection_sp->GetPropertyAtIndexAsBoolean (NULL, idx, false);
+}
+
const ProcessLaunchInfo &
TargetProperties::GetProcessLaunchInfo ()
{