1 files changed, 46 insertions, 0 deletions
diff --git a/arch/x86/entry/syscalls/syscalltbl.sh b/arch/x86/entry/syscalls/syscalltbl.sh
new file mode 100644
index 000000000..929bde120
--- /dev/null
+++ b/arch/x86/entry/syscalls/syscalltbl.sh
@@ -0,0 +1,46 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+in="$1"
+out="$2"
+
+syscall_macro() {
+    local abi="$1"
+    local nr="$2"
+    local entry="$3"
+
+    echo "__SYSCALL_${abi}($nr, $entry)"
+}
+
+emit() {
+    local abi="$1"
+    local nr="$2"
+    local entry="$3"
+    local compat="$4"
+
+    if [ "$abi" != "I386" -a -n "$compat" ]; then
+	echo "a compat entry ($abi: $compat) for a 64-bit syscall makes no sense" >&2
+	exit 1
+    fi
+
+    if [ -z "$compat" ]; then
+	if [ -n "$entry" ]; then
+	    syscall_macro "$abi" "$nr" "$entry"
+	fi
+    else
+	echo "#ifdef CONFIG_X86_32"
+	if [ -n "$entry" ]; then
+	    syscall_macro "$abi" "$nr" "$entry"
+	fi
+	echo "#else"
+	syscall_macro "$abi" "$nr" "$compat"
+	echo "#endif"
+    fi
+}
+
+grep '^[0-9]' "$in" | sort -n | (
+    while read nr abi name entry compat; do
+	abi=`echo "$abi" | tr '[a-z]' '[A-Z]'`
+	emit "$abi" "$nr" "$entry" "$compat"
+    done
+) > "$out"