mksysnum_freebsd.pl

Documentation: syscall

     1	#!/usr/bin/env perl
     2	# Copyright 2009 The Go Authors. All rights reserved.
     3	# Use of this source code is governed by a BSD-style
     4	# license that can be found in the LICENSE file.
     5	#
     6	# Generate system call table for FreeBSD from master list
     7	# (for example, /usr/src/sys/kern/syscalls.master).
     8	
     9	use strict;
    10	
    11	my $command = "mksysnum_freebsd.pl " . join(' ', @ARGV);
    12	
    13	print <<EOF;
    14	// $command
    15	// MACHINE GENERATED BY THE ABOVE COMMAND; DO NOT EDIT
    16	
    17	package syscall
    18	
    19	const (
    20	EOF
    21	
    22	while(<>){
    23		if(/^([0-9]+)\s+\S+\s+STD\s+({ \S+\s+(\w+).*)$/){
    24			my $num = $1;
    25			my $proto = $2;
    26			my $name = "SYS_$3";
    27			$name =~ y/a-z/A-Z/;
    28	
    29			# There are multiple entries for enosys and nosys, so comment them out.
    30			if($name =~ /^SYS_E?NOSYS$/){
    31				$name = "// $name";
    32			}
    33			if($name eq 'SYS_SYS_EXIT'){
    34				$name = 'SYS_EXIT';
    35			}
    36			if($name =~ /^SYS_CAP_+/ || $name =~ /^SYS___CAP_+/){
    37				next
    38			}
    39	
    40			print "	$name = $num;  // $proto\n";
    41	
    42			# We keep Capsicum syscall numbers for FreeBSD
    43			# 9-STABLE here because we are not sure whether they
    44			# are mature and stable.
    45			if($num == 513){
    46				print " SYS_CAP_NEW = 514 // { int cap_new(int fd, uint64_t rights); }\n";
    47				print " SYS_CAP_GETRIGHTS = 515 // { int cap_getrights(int fd, \\\n";
    48				print " SYS_CAP_ENTER = 516 // { int cap_enter(void); }\n";
    49				print " SYS_CAP_GETMODE = 517 // { int cap_getmode(u_int *modep); }\n";
    50			}
    51		}
    52	}
    53	
    54	print <<EOF;
    55	)
    56	EOF
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