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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-28 13:14:23 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-28 13:14:23 +0000 |
commit | 73df946d56c74384511a194dd01dbe099584fd1a (patch) | |
tree | fd0bcea490dd81327ddfbb31e215439672c9a068 /src/syscall/mksysnum_linux.pl | |
parent | Initial commit. (diff) | |
download | golang-1.16-upstream.tar.xz golang-1.16-upstream.zip |
Adding upstream version 1.16.10.upstream/1.16.10upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/syscall/mksysnum_linux.pl')
-rwxr-xr-x | src/syscall/mksysnum_linux.pl | 61 |
1 files changed, 61 insertions, 0 deletions
diff --git a/src/syscall/mksysnum_linux.pl b/src/syscall/mksysnum_linux.pl new file mode 100755 index 0000000..5fb1d0e --- /dev/null +++ b/src/syscall/mksysnum_linux.pl @@ -0,0 +1,61 @@ +#!/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 |