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58 lines
1.2 KiB
58 lines
1.2 KiB
#!/usr/bin/env perl |
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# Copyright 2009 The Go Authors. All rights reserved. |
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# Use of this source code is governed by a BSD-style |
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# license that can be found in the LICENSE file. |
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use strict; |
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if($ENV{'GOARCH'} eq "" || $ENV{'GOOS'} eq "") { |
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print STDERR "GOARCH or GOOS not defined in environment\n"; |
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exit 1; |
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} |
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my $command = "mksysnum_linux.pl ". join(' ', @ARGV); |
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print <<EOF; |
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// $command |
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// MACHINE GENERATED BY THE ABOVE COMMAND; DO NOT EDIT |
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// +build $ENV{'GOARCH'},$ENV{'GOOS'} |
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package unix |
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const( |
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EOF |
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sub fmt { |
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my ($name, $num) = @_; |
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if($num > 999){ |
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# ignore deprecated syscalls that are no longer implemented |
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# https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/tree/include/uapi/asm-generic/unistd.h?id=refs/heads/master#n716 |
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return; |
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} |
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$name =~ y/a-z/A-Z/; |
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print " SYS_$name = $num;\n"; |
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} |
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my $prev; |
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open(GCC, "gcc -E -dD $ARGV[0] |") || die "can't run gcc"; |
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while(<GCC>){ |
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if(/^#define __NR_syscalls\s+/) { |
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# ignore redefinitions of __NR_syscalls |
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} |
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elsif(/^#define __NR_(\w+)\s+([0-9]+)/){ |
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$prev = $2; |
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fmt($1, $2); |
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} |
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elsif(/^#define __NR3264_(\w+)\s+([0-9]+)/){ |
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$prev = $2; |
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fmt($1, $2); |
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} |
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elsif(/^#define __NR_(\w+)\s+\(\w+\+\s*([0-9]+)\)/){ |
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fmt($1, $prev+$2) |
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} |
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} |
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print <<EOF; |
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) |
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EOF
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