Add support for JIT debugging on Linux using the GDB JIT interface. Patch written with Keno Fischer.
llvm-svn: 202956
diff --git a/lldb/source/Core/PluginManager.cpp b/lldb/source/Core/PluginManager.cpp
index 813cec2..b4ee07a 100644
--- a/lldb/source/Core/PluginManager.cpp
+++ b/lldb/source/Core/PluginManager.cpp
@@ -544,6 +544,116 @@
return NULL;
}
+#pragma mark JITLoader
+
+
+struct JITLoaderInstance
+{
+ JITLoaderInstance() :
+ name(),
+ description(),
+ create_callback(NULL),
+ debugger_init_callback (NULL)
+ {
+ }
+
+ ConstString name;
+ std::string description;
+ JITLoaderCreateInstance create_callback;
+ DebuggerInitializeCallback debugger_init_callback;
+};
+
+typedef std::vector<JITLoaderInstance> JITLoaderInstances;
+
+
+static Mutex &
+GetJITLoaderMutex ()
+{
+ static Mutex g_instances_mutex (Mutex::eMutexTypeRecursive);
+ return g_instances_mutex;
+}
+
+static JITLoaderInstances &
+GetJITLoaderInstances ()
+{
+ static JITLoaderInstances g_instances;
+ return g_instances;
+}
+
+
+bool
+PluginManager::RegisterPlugin
+(
+ const ConstString &name,
+ const char *description,
+ JITLoaderCreateInstance create_callback,
+ DebuggerInitializeCallback debugger_init_callback
+)
+{
+ if (create_callback)
+ {
+ JITLoaderInstance instance;
+ assert ((bool)name);
+ instance.name = name;
+ if (description && description[0])
+ instance.description = description;
+ instance.create_callback = create_callback;
+ instance.debugger_init_callback = debugger_init_callback;
+ Mutex::Locker locker (GetJITLoaderMutex ());
+ GetJITLoaderInstances ().push_back (instance);
+ }
+ return false;
+}
+
+bool
+PluginManager::UnregisterPlugin (JITLoaderCreateInstance create_callback)
+{
+ if (create_callback)
+ {
+ Mutex::Locker locker (GetJITLoaderMutex ());
+ JITLoaderInstances &instances = GetJITLoaderInstances ();
+
+ JITLoaderInstances::iterator pos, end = instances.end();
+ for (pos = instances.begin(); pos != end; ++ pos)
+ {
+ if (pos->create_callback == create_callback)
+ {
+ instances.erase(pos);
+ return true;
+ }
+ }
+ }
+ return false;
+}
+
+JITLoaderCreateInstance
+PluginManager::GetJITLoaderCreateCallbackAtIndex (uint32_t idx)
+{
+ Mutex::Locker locker (GetJITLoaderMutex ());
+ JITLoaderInstances &instances = GetJITLoaderInstances ();
+ if (idx < instances.size())
+ return instances[idx].create_callback;
+ return NULL;
+}
+
+JITLoaderCreateInstance
+PluginManager::GetJITLoaderCreateCallbackForPluginName (const ConstString &name)
+{
+ if (name)
+ {
+ Mutex::Locker locker (GetJITLoaderMutex ());
+ JITLoaderInstances &instances = GetJITLoaderInstances ();
+
+ JITLoaderInstances::iterator pos, end = instances.end();
+ for (pos = instances.begin(); pos != end; ++ pos)
+ {
+ if (name == pos->name)
+ return pos->create_callback;
+ }
+ }
+ return NULL;
+}
+
#pragma mark EmulateInstruction
@@ -1945,6 +2055,19 @@
}
}
+ // Initialize the JITLoader plugins
+ {
+ Mutex::Locker locker (GetJITLoaderMutex ());
+ JITLoaderInstances &instances = GetJITLoaderInstances ();
+
+ JITLoaderInstances::iterator pos, end = instances.end();
+ for (pos = instances.begin(); pos != end; ++ pos)
+ {
+ if (pos->debugger_init_callback)
+ pos->debugger_init_callback (debugger);
+ }
+ }
+
// Initialize the Platform plugins
{
Mutex::Locker locker (GetPlatformInstancesMutex ());