gdb/syscalls/update-freebsd.sh

   1 #! /bin/sh
   2
   3 # Copyright (C) 2018-2020 Free Software Foundation, Inc.
   4 #
   5 # This file is part of GDB.
   6 #
   7 # This program is free software; you can redistribute it and/or modify
   8 # it under the terms of the GNU General Public License as published by
   9 # the Free Software Foundation; either version 3 of the License, or
  10 # (at your option) any later version.
  11 #
  12 # This program is distributed in the hope that it will be useful,
  13 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 # GNU General Public License for more details.
  16 #
  17 # You should have received a copy of the GNU General Public License
  18 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
  19
  20 # Usage: update-freebsd.sh <path-to-syscall.h>
  21 # Update the freebsd.xml file.
  22 #
  23 # FreeBSD uses the same list of system calls on all architectures.
  24 # The list is defined in the sys/kern/syscalls.master file in the
  25 # FreeBSD source tree.  This file is used as an input to generate
  26 # several files that are also stored in FreeBSD's source tree.  This
  27 # script parses one of those generated files (sys/sys/syscall.h)
  28 # rather than syscalls.master as syscall.h is easier to parse.
  29
  30 if [ $# -ne 1 ]; then
  31    echo "Error: Path to syscall.h missing. Aborting."
  32    echo "Usage: update-freebsd.sh <path-to-syscall.h>"
  33    exit 1
  34 fi
  35
  36 cat > freebsd.xml.tmp <<EOF
  37 <?xml version="1.0"?> <!-- THIS FILE IS GENERATED -*- buffer-read-only: t -*-  -->
  38 <!-- vi:set ro: -->
  39 <!-- Copyright (C) 2009-2020 Free Software Foundation, Inc.
  40
  41      Copying and distribution of this file, with or without modification,
  42      are permitted in any medium without royalty provided the copyright
  43      notice and this notice are preserved.  -->
  44
  45 <!DOCTYPE feature SYSTEM "gdb-syscalls.dtd">
  46
  47 <!-- This file was generated using the following file:
  48
  49      /usr/src/sys/sys/syscall.h
  50
  51      The file mentioned above belongs to the FreeBSD Kernel.  -->
  52
  53 <syscalls_info>
  54 EOF
  55
  56 awk '
  57 /MAXSYSCALL/ {
  58     next
  59 }
  60 /^#define/ {
  61     sub(/^SYS_/,"",$2);
  62     printf "  <syscall name=\"%s\" number=\"%s\"", $2, $3
  63     if (sub(/^freebsd[0-9]*_/,"",$2) != 0)
  64         printf " alias=\"%s\"", $2
  65     printf "/>\n"
  66 }
  67 /\/\* [0-9]* is obsolete [a-z_]* \*\// {
  68     printf "  <syscall name=\"%s\" number=\"%s\"/>\n", $5, $2
  69 }
  70 /\/\* [0-9]* is freebsd[0-9]* [a-z_]* \*\// {
  71     printf "  <syscall name=\"%s_%s\" number=\"%s\" alias=\"%s\"/>\n", $4, $5, $2, $5
  72 }' "$1" >> freebsd.xml.tmp
  73
  74 cat >> freebsd.xml.tmp <<EOF
  75 </syscalls_info>
  76 EOF
  77
  78 ../../move-if-change freebsd.xml.tmp freebsd.xml