Add stub for PluginProcessNetBSD

Summary:
This is the base for introduction of further features to support Process Tracing on NetBSD, in local and remote setup.

This code is also a starting point to synchronize the development with other BSDs. Currently NetBSD is ahead and other systems can catch up.

Sponsored by <The NetBSD Foundation>

Reviewers: emaste, joerg, kettenis, labath

Reviewed By: labath

Subscribers: mgorny, #lldb

Tags: #lldb

Differential Revision: https://reviews.llvm.org/D31138

llvm-svn: 298408

lldb/source/Plugins/Process/CMakeLists.txt

@@ -5,6 +5,7 @@ elseif (CMAKE_SYSTEM_NAME MATCHES "FreeBSD")
   add_subdirectory(FreeBSD)
   add_subdirectory(POSIX)
 elseif (CMAKE_SYSTEM_NAME MATCHES "NetBSD")
+  add_subdirectory(NetBSD)
   add_subdirectory(POSIX)
 elseif (CMAKE_SYSTEM_NAME MATCHES "Windows")
   add_subdirectory(Windows/Common)

lldb/source/Plugins/Process/NetBSD/CMakeLists.txt

@@ -0,0 +1,20 @@
+include_directories(.)
+include_directories(../POSIX)
+include_directories(../Utility)
+
+add_lldb_library(lldbPluginProcessNetBSD PLUGIN
+  NativeProcessNetBSD.cpp
+  NativeRegisterContextNetBSD.cpp
+  NativeThreadNetBSD.cpp
+
+  LINK_LIBS
+    lldbCore
+    lldbHost
+    lldbSymbol
+    lldbTarget
+    lldbUtility
+    lldbPluginProcessPOSIX
+    lldbPluginProcessUtility
+  LINK_COMPONENTS
+    Support
+  )

lldb/source/Plugins/Process/NetBSD/NativeProcessNetBSD.cpp

@@ -0,0 +1,51 @@
+//===-- NativeProcessNetBSD.cpp ------------------------------- -*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include "NativeProcessNetBSD.h"
+
+// C Includes
+
+// C++ Includes
+
+// Other libraries and framework includes
+
+#include "Plugins/Process/POSIX/ProcessPOSIXLog.h"
+
+// System includes - They have to be included after framework includes because
+// they define some
+// macros which collide with variable names in other modules
+
+using namespace lldb;
+using namespace lldb_private;
+using namespace lldb_private::process_netbsd;
+using namespace llvm;
+
+// -----------------------------------------------------------------------------
+// Public Static Methods
+// -----------------------------------------------------------------------------
+
+Error NativeProcessProtocol::Launch(
+    ProcessLaunchInfo &launch_info,
+    NativeProcessProtocol::NativeDelegate &native_delegate, MainLoop &mainloop,
+    NativeProcessProtocolSP &native_process_sp) {
+  return Error();
+}
+
+Error NativeProcessProtocol::Attach(
+    lldb::pid_t pid, NativeProcessProtocol::NativeDelegate &native_delegate,
+    MainLoop &mainloop, NativeProcessProtocolSP &native_process_sp) {
+  return Error();
+}
+
+// -----------------------------------------------------------------------------
+// Public Instance Methods
+// -----------------------------------------------------------------------------
+
+NativeProcessNetBSD::NativeProcessNetBSD()
+    : NativeProcessProtocol(LLDB_INVALID_PROCESS_ID) {}

lldb/source/Plugins/Process/NetBSD/NativeProcessNetBSD.h

@@ -0,0 +1,49 @@
+//===-- NativeProcessNetBSD.h --------------------------------- -*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef liblldb_NativeProcessNetBSD_H_
+#define liblldb_NativeProcessNetBSD_H_
+
+// C++ Includes
+
+// Other libraries and framework includes
+
+#include "lldb/Core/ArchSpec.h"
+#include "lldb/Host/FileSpec.h"
+#include "lldb/Target/MemoryRegionInfo.h"
+
+#include "NativeThreadNetBSD.h"
+#include "lldb/Host/common/NativeProcessProtocol.h"
+
+namespace lldb_private {
+namespace process_netbsd {
+/// @class NativeProcessNetBSD
+/// @brief Manages communication with the inferior (debugee) process.
+///
+/// Upon construction, this class prepares and launches an inferior process for
+/// debugging.
+///
+/// Changes in the inferior process state are broadcasted.
+class NativeProcessNetBSD : public NativeProcessProtocol {
+  friend Error NativeProcessProtocol::Launch(
+      ProcessLaunchInfo &launch_info, NativeDelegate &native_delegate,
+      MainLoop &mainloop, NativeProcessProtocolSP &process_sp);
+
+  friend Error NativeProcessProtocol::Attach(
+      lldb::pid_t pid, NativeProcessProtocol::NativeDelegate &native_delegate,
+      MainLoop &mainloop, NativeProcessProtocolSP &process_sp);
+
+private:
+  NativeProcessNetBSD();
+};
+
+} // namespace process_netbsd
+} // namespace lldb_private
+
+#endif // #ifndef liblldb_NativeProcessNetBSD_H_

lldb/source/Plugins/Process/NetBSD/NativeRegisterContextNetBSD.cpp

@@ -0,0 +1,19 @@
+//===-- NativeRegisterContextNetBSD.cpp -------------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include "NativeRegisterContextNetBSD.h"
+
+using namespace lldb_private;
+using namespace lldb_private::process_netbsd;
+
+NativeRegisterContextNetBSD::NativeRegisterContextNetBSD(
+    NativeThreadProtocol &native_thread, uint32_t concrete_frame_idx,
+    RegisterInfoInterface *reg_info_interface_p)
+    : NativeRegisterContextRegisterInfo(native_thread, concrete_frame_idx,
+                                        reg_info_interface_p) {}

lldb/source/Plugins/Process/NetBSD/NativeRegisterContextNetBSD.h

@@ -0,0 +1,41 @@
+//===-- NativeRegisterContextNetBSD.h ---------------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef lldb_NativeRegisterContextNetBSD_h
+#define lldb_NativeRegisterContextNetBSD_h
+
+#include "lldb/Host/common/NativeRegisterContextRegisterInfo.h"
+#include "lldb/Host/common/NativeThreadProtocol.h"
+
+#include "Plugins/Process/NetBSD/NativeProcessNetBSD.h"
+
+namespace lldb_private {
+namespace process_netbsd {
+
+class NativeRegisterContextNetBSD : public NativeRegisterContextRegisterInfo {
+public:
+  NativeRegisterContextNetBSD(NativeThreadProtocol &native_thread,
+                              uint32_t concrete_frame_idx,
+                              RegisterInfoInterface *reg_info_interface_p);
+
+  // This function is implemented in the NativeRegisterContextNetBSD_*
+  // subclasses to create a new instance of the host specific
+  // NativeRegisterContextNetBSD. The implementations can't collide as only one
+  // NativeRegisterContextNetBSD_* variant should be compiled into the final
+  // executable.
+  static NativeRegisterContextNetBSD *
+  CreateHostNativeRegisterContextNetBSD(const ArchSpec &target_arch,
+                                        NativeThreadProtocol &native_thread,
+                                        uint32_t concrete_frame_idx);
+};
+
+} // namespace process_netbsd
+} // namespace lldb_private
+
+#endif // #ifndef lldb_NativeRegisterContextNetBSD_h

lldb/source/Plugins/Process/NetBSD/NativeThreadNetBSD.cpp

@@ -0,0 +1,21 @@
+//===-- NativeThreadNetBSD.cpp -------------------------------- -*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include "NativeThreadNetBSD.h"
+#include "NativeRegisterContextNetBSD.h"
+
+#include "NativeProcessNetBSD.h"
+
+using namespace lldb;
+using namespace lldb_private;
+using namespace lldb_private::process_netbsd;
+
+NativeThreadNetBSD::NativeThreadNetBSD(NativeProcessNetBSD *process,
+                                       lldb::tid_t tid)
+    : NativeThreadProtocol(process, tid) {}

lldb/source/Plugins/Process/NetBSD/NativeThreadNetBSD.h

@@ -0,0 +1,31 @@
+//===-- NativeThreadNetBSD.h ---------------------------------- -*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef liblldb_NativeThreadNetBSD_H_
+#define liblldb_NativeThreadNetBSD_H_
+
+#include "lldb/Host/common/NativeThreadProtocol.h"
+
+namespace lldb_private {
+namespace process_netbsd {
+
+class NativeProcessNetBSD;
+
+class NativeThreadNetBSD : public NativeThreadProtocol {
+  friend class NativeProcessNetBSD;
+
+public:
+  NativeThreadNetBSD(NativeProcessNetBSD *process, lldb::tid_t tid);
+};
+
+typedef std::shared_ptr<NativeThreadNetBSD> NativeThreadNetBSDSP;
+} // namespace process_netbsd
+} // namespace lldb_private
+
+#endif // #ifndef liblldb_NativeThreadNetBSD_H_

lldb/tools/lldb-server/CMakeLists.txt

@@ -17,6 +17,7 @@ endif ()
 if ( CMAKE_SYSTEM_NAME MATCHES "NetBSD" )
 include_directories(
   ../../../../llvm/include
+  ../../source/Plugins/Process/NetBSD
   ../../source/Plugins/Process/POSIX
   )
 endif ()