Import LLVM 10.0.0 release including clang, lld and lldb.

ok hackroom
tested by plenty

1 files changed, 54 insertions, 0 deletions

diff --git a/gnu/llvm/lldb/source/Target/OperatingSystem.cpp b/gnu/llvm/lldb/source/Target/OperatingSystem.cpp
new file mode 100644
index 00000000000..c78c197db5b
--- /dev/null
+++ b/gnu/llvm/lldb/source/Target/OperatingSystem.cpp
@@ -0,0 +1,54 @@
+//===-- OperatingSystem.cpp -------------------------------------*- C++ -*-===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+#include "lldb/Target/OperatingSystem.h"
+#include "lldb/Core/PluginManager.h"
+#include "lldb/Target/Thread.h"
+
+using namespace lldb;
+using namespace lldb_private;
+
+OperatingSystem *OperatingSystem::FindPlugin(Process *process,
+                                             const char *plugin_name) {
+  OperatingSystemCreateInstance create_callback = nullptr;
+  if (plugin_name) {
+    ConstString const_plugin_name(plugin_name);
+    create_callback =
+        PluginManager::GetOperatingSystemCreateCallbackForPluginName(
+            const_plugin_name);
+    if (create_callback) {
+      std::unique_ptr<OperatingSystem> instance_up(
+          create_callback(process, true));
+      if (instance_up)
+        return instance_up.release();
+    }
+  } else {
+    for (uint32_t idx = 0;
+         (create_callback =
+              PluginManager::GetOperatingSystemCreateCallbackAtIndex(idx)) !=
+         nullptr;
+         ++idx) {
+      std::unique_ptr<OperatingSystem> instance_up(
+          create_callback(process, false));
+      if (instance_up)
+        return instance_up.release();
+    }
+  }
+  return nullptr;
+}
+
+OperatingSystem::OperatingSystem(Process *process) : m_process(process) {}
+
+OperatingSystem::~OperatingSystem() = default;
+
+bool OperatingSystem::IsOperatingSystemPluginThread(
+    const lldb::ThreadSP &thread_sp) {
+  if (thread_sp)
+    return thread_sp->IsOperatingSystemPluginThread();
+  return false;
+}