#!/usr/bin/env 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.
|
|
use strict;
|
|
my $command = "mksysnum_linux.pl ". join(' ', @ARGV);
|
|
print <<EOF;
|
// $command
|
// Code generated by the command above; DO NOT EDIT.
|
|
package syscall
|
|
const(
|
EOF
|
|
my $offset = 0;
|
|
sub fmt {
|
my ($name, $num) = @_;
|
if($num > 999){
|
# ignore deprecated syscalls that are no longer implemented
|
# https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/tree/include/uapi/asm-generic/unistd.h?id=refs/heads/master#n716
|
return;
|
}
|
$name =~ y/a-z/A-Z/;
|
$num = $num + $offset;
|
print " SYS_$name = $num;\n";
|
}
|
|
my $prev;
|
open(GCC, "gcc -E -dD $ARGV[0] |") || die "can't run gcc";
|
while(<GCC>){
|
if(/^#define __NR_Linux\s+([0-9]+)/){
|
# mips/mips64: extract offset
|
$offset = $1;
|
}
|
elsif(/^#define __NR_syscalls\s+/) {
|
# ignore redefinitions of __NR_syscalls
|
}
|
elsif(/^#define __NR_(\w+)\s+([0-9]+)/){
|
$prev = $2;
|
fmt($1, $2);
|
}
|
elsif(/^#define __NR3264_(\w+)\s+([0-9]+)/){
|
$prev = $2;
|
fmt($1, $2);
|
}
|
elsif(/^#define __NR_(\w+)\s+\(\w+\+\s*([0-9]+)\)/){
|
fmt($1, $prev+$2)
|
}
|
elsif(/^#define __NR_(\w+)\s+\(__NR_Linux \+ ([0-9]+)/){
|
fmt($1, $2);
|
}
|
}
|
|
print <<EOF;
|
)
|
EOF
|
