diff --git a/rvm/src/org/jikesrvm/runtime/BootRecord.java b/rvm/src/org/jikesrvm/runtime/BootRecord.java
index c45ffab43..b61944a3f 100644
--- a/rvm/src/org/jikesrvm/runtime/BootRecord.java
+++ b/rvm/src/org/jikesrvm/runtime/BootRecord.java
@@ -13,6 +13,7 @@
 package org.jikesrvm.runtime;
 
 import org.jikesrvm.VM;
+import org.jikesrvm.jni.FunctionTable;
 import org.jikesrvm.mm.mminterface.MemoryManager;
 import org.vmmagic.pragma.Entrypoint;
 import org.vmmagic.pragma.Uninterruptible;
@@ -175,10 +176,16 @@ public void setHeapRange(int id, Address start, Address end) {
 
   /**
    * address of JavaVM, used by JNI_OnLoad and JNIEnv.GetJavaVM,
-   * defined in Sys.C
+   * defined in jvm.c
    */
   public Address sysJavaVM;
 
+  /**
+   * Reference to JNI function table
+   */
+  @Untraced
+  public FunctionTable JNIFunctions;
+
   // Additional RVM entrypoints
   //
   /**
@@ -293,6 +300,19 @@ public void setHeapRange(int id, Address start, Address end) {
   Address sysDlopenIP;
   Address sysDlsymIP;
 
+  // var args
+  public Address sysVaCopyIP;
+  public Address sysVaEndIP;
+  public Address sysVaArgJbooleanIP;
+  public Address sysVaArgJbyteIP;
+  public Address sysVaArgJcharIP;
+  public Address sysVaArgJshortIP;
+  public Address sysVaArgJintIP;
+  public Address sysVaArgJlongIP;
+  public Address sysVaArgJfloatIP;
+  public Address sysVaArgJdoubleIP;
+  public Address sysVaArgJobjectIP;
+
   // VMMath
   public Address sysVMMathSinIP;
   public Address sysVMMathCosIP;
diff --git a/rvm/src/org/jikesrvm/runtime/SysCall.java b/rvm/src/org/jikesrvm/runtime/SysCall.java
index 352f51206..4a9f66d34 100755
--- a/rvm/src/org/jikesrvm/runtime/SysCall.java
+++ b/rvm/src/org/jikesrvm/runtime/SysCall.java
@@ -289,6 +289,30 @@ public abstract long sysParseMemorySize(byte[] sizeName, byte[] sizeFlag, byte[]
   @SysCallTemplate
   public abstract Address sysDlsym(Address libHandler, byte[] symbolName, byte[] argSignature);
 
+  // var args
+  @SysCallTemplate
+  public abstract Address sysVaCopy(Address va_list);
+  @SysCallTemplate
+  public abstract void sysVaEnd(Address va_list);
+  @SysCallTemplate
+  public abstract boolean sysVaArgJboolean(Address va_list);
+  @SysCallTemplate
+  public abstract byte sysVaArgJbyte(Address va_list);
+  @SysCallTemplate
+  public abstract char sysVaArgJchar(Address va_list);
+  @SysCallTemplate
+  public abstract short sysVaArgJshort(Address va_list);
+  @SysCallTemplate
+  public abstract int sysVaArgJint(Address va_list);
+  @SysCallTemplate
+  public abstract long sysVaArgJlong(Address va_list);
+  @SysCallTemplate
+  public abstract float sysVaArgJfloat(Address va_list);
+  @SysCallTemplate
+  public abstract double sysVaArgJdouble(Address va_list);
+  @SysCallTemplate
+  public abstract int sysVaArgJobject(Address va_list);
+
   // system calls for alignment checking
   @SysCallTemplate
   public abstract void sysEnableAlignmentChecking();