86 lines
1.9 KiB
Perl
86 lines
1.9 KiB
Perl
|
#!/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;
|
||
|
|
|
||
|
|
if($ENV{'GOARCH'} eq "" || $ENV{'GOOS'} eq "") {
|
||
|
|
print STDERR "GOARCH or GOOS not defined in environment\n";
|
||
|
|
exit 1;
|
||
|
|
}
|
||
|
|
|
||
|
|
# Check that we are using the new build system if we should
|
||
|
|
if($ENV{'GOLANG_SYS_BUILD'} ne "docker") {
|
||
|
|
print STDERR "In the new build system, mksysnum should not be called directly.\n";
|
||
|
|
print STDERR "See README.md\n";
|
||
|
|
exit 1;
|
||
|
|
}
|
||
|
|
|
||
|
|
my $command = "$0 ". join(' ', @ARGV);
|
||
|
|
|
||
|
|
print <<EOF;
|
||
|
|
// $command
|
||
|
|
// Code generated by the command above; see README.md. DO NOT EDIT.
|
||
|
|
|
||
|
|
// +build $ENV{'GOARCH'},$ENV{'GOOS'}
|
||
|
|
|
||
|
|
package unix
|
||
|
|
|
||
|
|
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 $prev;
|
||
|
|
open(CC, "$ENV{'CC'} -E -dD @ARGV |") || die "can't run $ENV{'CC'}";
|
||
|
|
while(<CC>){
|
||
|
|
if(/^#define __NR_Linux\s+([0-9]+)/){
|
||
|
|
# mips/mips64: extract offset
|
||
|
|
$offset = $1;
|
||
|
|
}
|
||
|
|
elsif(/^#define __NR(\w*)_SYSCALL_BASE\s+([0-9]+)/){
|
||
|
|
# arm: extract offset
|
||
|
|
$offset = $1;
|
||
|
|
}
|
||
|
|
elsif(/^#define __NR_syscalls\s+/) {
|
||
|
|
# ignore redefinitions of __NR_syscalls
|
||
|
|
}
|
||
|
|
elsif(/^#define __NR_(\w*)Linux_syscalls\s+/) {
|
||
|
|
# mips/mips64: ignore definitions about the number of 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);
|
||
|
|
}
|
||
|
|
elsif(/^#define __NR_(\w+)\s+\(__NR_SYSCALL_BASE \+ ([0-9]+)/){
|
||
|
|
fmt($1, $2);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
print <<EOF;
|
||
|
|
)
|
||
|
|
EOF
|