1 files changed, 97 insertions, 0 deletions
diff --git a/contrib/bearssl/T0/CodeElementJump.cs b/contrib/bearssl/T0/CodeElementJump.cs
new file mode 100644
index 000000000000..4dae0bc8c059
--- /dev/null
+++ b/contrib/bearssl/T0/CodeElementJump.cs
@@ -0,0 +1,97 @@
+/*
+ * Copyright (c) 2016 Thomas Pornin <pornin@bolet.org>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining 
+ * a copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sublicense, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be 
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+using System;
+
+class CodeElementJump : CodeElement {
+
+	uint jumpType;
+	CodeElement target;
+
+	internal CodeElementJump(uint jumpType)
+	{
+		this.jumpType = jumpType;
+	}
+
+	/* obsolete
+	internal override int Length {
+		get {
+			int len = Encode7EUnsigned(jumpType, null);
+			int joff = JumpOff;
+			if (joff == Int32.MinValue) {
+				len ++;
+			} else {
+				len += Encode7ESigned(joff, null);
+			}
+			return len;
+		}
+	}
+	*/
+
+	internal override int GetLength(bool oneByteCode)
+	{
+		int len = oneByteCode ? 1 : Encode7EUnsigned(jumpType, null);
+		int joff = JumpOff;
+		if (joff == Int32.MinValue) {
+			len ++;
+		} else {
+			len += Encode7ESigned(joff, null);
+		}
+		return len;
+	}
+
+	internal override void SetJumpTarget(CodeElement target)
+	{
+		this.target = target;
+	}
+
+	int JumpOff {
+		get {
+			if (target == null || Address < 0 || target.Address < 0)
+			{
+				return Int32.MinValue;
+			} else {
+				return target.Address - (Address + LastLength);
+			}
+		}
+	}
+
+	internal override int Encode(BlobWriter bw, bool oneByteCode)
+	{
+		if (bw == null) {
+			return GetLength(oneByteCode);
+		}
+		int len;
+		if (oneByteCode) {
+			len = EncodeOneByte(jumpType, bw);
+		} else {
+			len = Encode7EUnsigned(jumpType, bw);
+		}
+		int joff = JumpOff;
+		if (joff == Int32.MinValue) {
+			throw new Exception("Unresolved addresses");
+		}
+		return len + Encode7ESigned(joff, bw);
+	}
+}