arch/x86/entry/syscalls/syscalltbl.sh

   1 #!/bin/bash
   2 # SPDX-License-Identifier: GPL-2.0
   3
   4 in="$1"
   5 out="$2"
   6
   7 syscall_macro() {
   8     local abi="$1"
   9     local nr="$2"
  10     local entry="$3"
  11
  12     echo "__SYSCALL_${abi}($nr, $entry)"
  13 }
  14
  15 emit() {
  16     local abi="$1"
  17     local nr="$2"
  18     local entry="$3"
  19     local compat="$4"
  20
  21     if [ "$abi" != "I386" -a -n "$compat" ]; then
  22         echo "a compat entry ($abi: $compat) for a 64-bit syscall makes no sense" >&2
  23         exit 1
  24     fi
  25
  26     if [ -z "$compat" ]; then
  27         if [ -n "$entry" ]; then
  28             syscall_macro "$abi" "$nr" "$entry"
  29         fi
  30     else
  31         echo "#ifdef CONFIG_X86_32"
  32         if [ -n "$entry" ]; then
  33             syscall_macro "$abi" "$nr" "$entry"
  34         fi
  35         echo "#else"
  36         syscall_macro "$abi" "$nr" "$compat"
  37         echo "#endif"
  38     fi
  39 }
  40
  41 grep '^[0-9]' "$in" | sort -n | (
  42     while read nr abi name entry compat; do
  43         abi=`echo "$abi" | tr '[a-z]' '[A-Z]'`
  44         emit "$abi" "$nr" "$entry" "$compat"
  45     done
  46 ) > "$out"