ADDED   arch/mktbl.errno.linux.sh
Index: arch/mktbl.errno.linux.sh
==================================================================
--- arch/mktbl.errno.linux.sh
+++ arch/mktbl.errno.linux.sh
@@ -0,0 +1,18 @@
+#!/usr/bin/env bash
+set -eu
+
+OUTDIR=$1
+ABI=$2
+
+INC_DEF=/usr/src/linux
+p_include="${LINUX_SRC:-$INC_DEF}"
+p_uapi="$p_include/tools/include/uapi"
+
+cpp -D__"$ABI"__ -undef -dM -I"$p_uapi" "$p_uapi/asm/errno.h" | sort -nrk3 | awk '{
+split($0, a, " ");
+if (a[2] !~ "^_"){
+	ids[a[2]] = a[3];
+	if (a[3] ~ /^[0-9]+$/) val=a[3];
+	else val=ids[a[3]];
+	print a[2] " " val;
+}}' | sort -nk2 > "$OUTDIR/error_table.tbl"