Move StopInfoOverride callback to the new architecture plugin
This creates a new Architecture plugin and moves the stop info override
callback to this place. The motivation for this is to remove complex
dependencies from the ArchSpec class because it is used in a lot of
places that (should) know nothing about Process instances and StopInfo
objects.
I also add a test for the functionality covered by the override
callback.
Differential Revision: https://reviews.llvm.org/D31172
llvm-svn: 316609
diff --git a/lldb/source/Core/PluginManager.cpp b/lldb/source/Core/PluginManager.cpp
index 9bb615b..a49fbc3 100644
--- a/lldb/source/Core/PluginManager.cpp
+++ b/lldb/source/Core/PluginManager.cpp
@@ -275,6 +275,54 @@
return nullptr;
}
+#pragma mark Architecture
+
+struct ArchitectureInstance {
+ ConstString name;
+ std::string description;
+ PluginManager::ArchitectureCreateInstance create_callback;
+};
+
+typedef std::vector<ArchitectureInstance> ArchitectureInstances;
+
+static std::mutex g_architecture_mutex;
+
+static ArchitectureInstances &GetArchitectureInstances() {
+ static ArchitectureInstances g_instances;
+ return g_instances;
+}
+
+void PluginManager::RegisterPlugin(const ConstString &name,
+ llvm::StringRef description,
+ ArchitectureCreateInstance create_callback) {
+ std::lock_guard<std::mutex> guard(g_architecture_mutex);
+ GetArchitectureInstances().push_back({name, description, create_callback});
+}
+
+void PluginManager::UnregisterPlugin(
+ ArchitectureCreateInstance create_callback) {
+ std::lock_guard<std::mutex> guard(g_architecture_mutex);
+ auto &instances = GetArchitectureInstances();
+
+ for (auto pos = instances.begin(), end = instances.end(); pos != end; ++pos) {
+ if (pos->create_callback == create_callback) {
+ instances.erase(pos);
+ return;
+ }
+ }
+ llvm_unreachable("Plugin not found");
+}
+
+std::unique_ptr<Architecture>
+PluginManager::CreateArchitectureInstance(const ArchSpec &arch) {
+ std::lock_guard<std::mutex> guard(g_architecture_mutex);
+ for (const auto &instances : GetArchitectureInstances()) {
+ if (auto plugin_up = instances.create_callback(arch))
+ return plugin_up;
+ }
+ return nullptr;
+}
+
#pragma mark Disassembler
struct DisassemblerInstance {