1
0
mirror of https://github.com/golang/go synced 2024-10-05 00:21:21 -06:00
go/src/pkg/syscall/mksysnum_linux.sh
Anthony Martin fee3aca2e0 syscall: fix mksysnum_linux.sh
A few system call numbers on x86 Linux are
defined in terms of a previous definition,

e.g.,
	#define __NR_timer_create	259
	#define __NR_timer_settime	(__NR_timer_create+1)
	...
	#define __NR_mq_open		277
	#define __NR_mq_unlink		(__NR_mq_open+1)

This change assumes the numbers are sorted
sequentially in the input file.

R=rsc, bradfitzwork
CC=golang-dev
https://golang.org/cl/3946041
2011-01-11 14:38:14 -05:00

37 lines
616 B
Bash
Executable File

#!/usr/bin/perl
# Copyright 2009 The Go Authors. All rights reserved.
# Use of this source code is governed by a BSD-style
# license that can be found in the LICENSE file.
my $command = "mksysnum_linux.sh ". join(' ', @ARGV);
print <<EOF;
// $command
// MACHINE GENERATED BY THE ABOVE COMMAND; DO NOT EDIT
package syscall
const(
EOF
sub fmt {
my ($name, $num) = @_;
$name =~ y/a-z/A-Z/;
print " SYS_$name = $num;\n";
}
my $prev;
while(<>){
if(/^#define __NR_(\w+)\s+([0-9]+)/){
$prev = $2;
fmt($1, $2);
}
elsif(/^#define __NR_(\w+)\s+\(\w+\+([0-9]+)\)/){
fmt($1, $prev+$2)
}
}
print <<EOF;
)
EOF