--- sys/imgact.h.orig	Mon Sep 18 02:18:46 2000
+++ sys/imgact.h	Mon Sep 18 02:19:25 2000
@@ -58,6 +58,7 @@
 	struct vm_page *firstpage;	/* first page that we mapped */
 	char *fname;            /* pointer to filename of executable (user space) */
 	unsigned long ps_strings; /* PS_STRINGS for BSD/OS binaries */
+	size_t auxarg_size;
 };
 
 #ifdef _KERNEL
--- kern/kern_exec.c.orig	Fri Jul 14 15:44:45 2000
+++ kern/kern_exec.c	Mon Sep 18 02:59:45 2000
@@ -127,6 +127,7 @@
 	imgp->vp = NULL;
 	imgp->firstpage = NULL;
 	imgp->ps_strings = 0;
+	imgp->auxarg_size=0;
 
 	/*
 	 * Allocate temporary demand zeroed space for argument and
@@ -613,14 +614,21 @@
 	 * If we have a valid auxargs ptr, prepare some room
 	 * on the stack.
 	 */
-	if (imgp->auxargs)
+	if (imgp->auxargs){
+        /*
+	 * 'AT_COUNT*2' is size for the ELF Auxargs data.
+	 * This is for lower compatibility.
+	 */
+		imgp->auxarg_size=(imgp->auxarg_size)?imgp->auxarg_size
+		    :(AT_COUNT*2);
 	/*
 	 * The '+ 2' is for the null pointers at the end of each of the
-	 * arg and env vector sets, and 'AT_COUNT*2' is room for the
-	 * ELF Auxargs data.
+	 * arg and env vector sets,and imgp->auxarg_size is room for argument
+	 * of Runtime loader.
 	 */
 		vectp = (char **)(destp - (imgp->argc + imgp->envc + 2 +
-				  AT_COUNT*2) * sizeof(char*));
+				  imgp->auxarg_size) * sizeof(char*));
+	}
 	else 
 	/*
 	 * The '+ 2' is for the null pointers at the end of each of the