Welcome to NetBSD signals

Summary:
Signals 1-32 are matching the default UNIX platform.

There are platform specific ones above 32.

From the `/usr/include/sys/signal.h` header:

```
#define SIGPWR          32      /* power fail/restart (not reset when caught) */
#ifdef _KERNEL
#define SIGRTMIN        33      /* Kernel only; not exposed to userland yet */
#define SIGRTMAX        63      /* Kernel only; not exposed to userland yet */
#endif
```

Reviewers: emaste, joerg

Subscribers: lldb-commits

Differential Revision: http://reviews.llvm.org/D15482

llvm-svn: 255592

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

@@ -9,6 +9,7 @@ add_lldb_library(lldbPluginProcessUtility
   InferiorCallPOSIX.cpp
   LinuxSignals.cpp
   MipsLinuxSignals.cpp
+  NetBSDSignals.cpp
   RegisterContextDarwin_arm.cpp
   RegisterContextDarwin_arm64.cpp
   RegisterContextDarwin_i386.cpp

lldb/source/Plugins/Process/Utility/NetBSDSignals.cpp

@@ -0,0 +1,34 @@
+//===-- NetBSDSignals.cpp --------------------------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// C Includes
+// C++ Includes
+// Other libraries and framework includes
+// Project includes
+#include "NetBSDSignals.h"
+
+using namespace lldb_private;
+
+NetBSDSignals::NetBSDSignals()
+    : UnixSignals()
+{
+    Reset();
+}
+
+void
+NetBSDSignals::Reset()
+{
+    UnixSignals::Reset();
+    //        SIGNO  NAME          SUPPRESS STOP   NOTIFY DESCRIPTION
+    //        ====== ============  ======== ====== ====== ===================================================
+    AddSignal (32,   "SIGPWR",     false,   true , true , "power fail/restart (not reset when caught)");
+#ifdef SIGRTMIN /* SIGRTMAX */
+    /* Kernel only; not exposed to userland yet */
+#endif
+}

lldb/source/Plugins/Process/Utility/NetBSDSignals.h

@@ -0,0 +1,31 @@
+//===-- NetBSDSignals.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_NetBSDSignals_H_
+#define liblldb_NetBSDSignals_H_
+
+// Project includes
+#include "lldb/Target/UnixSignals.h"
+
+namespace lldb_private {
+
+/// NetBSD specific set of Unix signals.
+class NetBSDSignals : public UnixSignals
+{
+public:
+    NetBSDSignals();
+
+private:
+    void
+    Reset() override;
+};
+
+} // namespace lldb_private
+
+#endif // liblldb_NetBSDSignals_H_

lldb/source/Target/UnixSignals.cpp

@@ -19,6 +19,7 @@
 #include "Plugins/Process/Utility/FreeBSDSignals.h"
 #include "Plugins/Process/Utility/LinuxSignals.h"
 #include "Plugins/Process/Utility/MipsLinuxSignals.h"
+#include "Plugins/Process/Utility/NetBSDSignals.h"
 
 using namespace lldb_private;
 
@@ -63,8 +64,9 @@ UnixSignals::Create(const ArchSpec &arch)
         }
         case llvm::Triple::FreeBSD:
         case llvm::Triple::OpenBSD:
-        case llvm::Triple::NetBSD:
             return std::make_shared<FreeBSDSignals>();
+        case llvm::Triple::NetBSD:
+            return std::make_shared<NetBSDSignals>();
         default:
             return std::make_shared<UnixSignals>();
     }