Debugger: Add definitions for signal dispositions.

- Add header for defining the possible signal dispositions that can be
  configured.
- Add corresponding UI helper function to map to a string
  representation.

src/apps/debugger/types/SignalDispositionTypes.h

@@ -0,0 +1,20 @@
+/*
+ * Copyright 2015, Rene Gollent, rene@gollent.com.
+ * Distributed under the terms of the MIT License.
+ */
+#ifndef SIGNAL_DISPOSITION_TYPES_H
+#define SIGNAL_DISPOSITION_TYPES_H
+
+
+enum SignalDisposition {
+	SIGNAL_DISPOSITION_IGNORE = 0,
+	SIGNAL_DISPOSITION_STOP_AT_RECEIPT,
+	SIGNAL_DISPOSITION_STOP_AT_SIGNAL_HANDLER,
+		// NB: if the team has no signal handler installed for
+		// the corresponding signal, this implies stop at receipt.
+
+	SIGNAL_DISPOSITION_MAX
+};
+
+
+#endif	// SIGNAL_DISPOSITION_TYPES_H

src/apps/debugger/user_interface/util/UiUtils.cpp

@@ -21,6 +21,7 @@
 #include "FunctionInstance.h"
 #include "Image.h"
 #include "RangeList.h"
+#include "SignalDispositionTypes.h"
 #include "StackFrame.h"
 #include "Team.h"
 #include "TeamMemoryBlock.h"
@@ -559,3 +560,21 @@ UiUtils::FormatSIMDValue(const BVariant& value, uint32 bitSize,
 
 	return _output;
 }
+
+
+const char*
+UiUtils::SignalDispositionToString(int disposition)
+{
+	switch (disposition) {
+		case SIGNAL_DISPOSITION_IGNORE:
+			return "Ignore";
+		case SIGNAL_DISPOSITION_STOP_AT_RECEIPT:
+			return "Stop at receipt";
+		case SIGNAL_DISPOSITION_STOP_AT_SIGNAL_HANDLER:
+			return "Stop at signal handler";
+		default:
+			break;
+	}
+
+	return "Unknown";
+}

src/apps/debugger/user_interface/util/UiUtils.h

@@ -74,6 +74,8 @@ class UiUtils {
 	static	const BString&		FormatSIMDValue(const BVariant& value,
 									uint32 bitSize, uint32 format,
 									BString& _output);
+
+	static	const char*			SignalDispositionToString(int disposition);
 };