69 lines
1.5 KiB
Bash
69 lines
1.5 KiB
Bash
#!/bin/sh
|
|
|
|
in="$1"
|
|
out="$2"
|
|
|
|
syscall_macro() {
|
|
abi="$1"
|
|
nr="$2"
|
|
entry="$3"
|
|
|
|
# Entry can be either just a function name or "function/qualifier"
|
|
real_entry="${entry%%/*}"
|
|
if [ "$entry" = "$real_entry" ]; then
|
|
qualifier=
|
|
else
|
|
qualifier=${entry#*/}
|
|
fi
|
|
|
|
echo "__SYSCALL_${abi}($nr, $real_entry, $qualifier)"
|
|
}
|
|
|
|
emit() {
|
|
abi="$1"
|
|
nr="$2"
|
|
entry="$3"
|
|
compat="$4"
|
|
|
|
if [ "$abi" = "64" -a -n "$compat" ]; then
|
|
echo "a compat entry for a 64-bit syscall makes no sense" >&2
|
|
exit 1
|
|
fi
|
|
|
|
if [ -z "$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 "$abi" | tr '[a-z]' '[A-Z]'`
|
|
if [ "$abi" = "COMMON" -o "$abi" = "64" ]; then
|
|
# COMMON is the same as 64, except that we don't expect X32
|
|
# programs to use it. Our expectation has nothing to do with
|
|
# any generated code, so treat them the same.
|
|
emit 64 "$nr" "$entry" "$compat"
|
|
elif [ "$abi" = "X32" ]; then
|
|
# X32 is equivalent to 64 on an X32-compatible kernel.
|
|
echo "#ifdef CONFIG_X86_X32_ABI"
|
|
emit 64 "$nr" "$entry" "$compat"
|
|
echo "#endif"
|
|
elif [ "$abi" = "I386" ]; then
|
|
emit "$abi" "$nr" "$entry" "$compat"
|
|
else
|
|
echo "Unknown abi $abi" >&2
|
|
exit 1
|
|
fi
|
|
done
|
|
) > "$out"
|