--- a/vendor/golang.org/x/sys/unix/mksyscall_aix.pl Wed Sep 18 19:17:42 2019 +0200
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,385 +0,0 @@
-#!/usr/bin/env perl
-# Copyright 2018 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.
-
-# This program reads a file containing function prototypes
-# (like syscall_aix.go) and generates system call bodies.
-# The prototypes are marked by lines beginning with "//sys"
-# and read like func declarations if //sys is replaced by func, but:
-# * The parameter lists must give a name for each argument.
-# This includes return parameters.
-# * The parameter lists must give a type for each argument:
-# the (x, y, z int) shorthand is not allowed.
-# * If the return parameter is an error number, it must be named err.
-# * If go func name needs to be different than its libc name,
-# * or the function is not in libc, name could be specified
-# * at the end, after "=" sign, like
-# //sys getsockopt(s int, level int, name int, val uintptr, vallen *_Socklen) (err error) = libsocket.getsockopt
-
-use strict;
-
-my $cmdline = "mksyscall_aix.pl " . join(' ', @ARGV);
-my $errors = 0;
-my $_32bit = "";
-my $tags = ""; # build tags
-my $aix = 0;
-my $solaris = 0;
-
-binmode STDOUT;
-
-if($ARGV[0] eq "-b32") {
- $_32bit = "big-endian";
- shift;
-} elsif($ARGV[0] eq "-l32") {
- $_32bit = "little-endian";
- shift;
-}
-if($ARGV[0] eq "-aix") {
- $aix = 1;
- shift;
-}
-if($ARGV[0] eq "-tags") {
- shift;
- $tags = $ARGV[0];
- shift;
-}
-
-if($ARGV[0] =~ /^-/) {
- print STDERR "usage: mksyscall_aix.pl [-b32 | -l32] [-tags x,y] [file ...]\n";
- exit 1;
-}
-
-sub parseparamlist($) {
- my ($list) = @_;
- $list =~ s/^\s*//;
- $list =~ s/\s*$//;
- if($list eq "") {
- return ();
- }
- return split(/\s*,\s*/, $list);
-}
-
-sub parseparam($) {
- my ($p) = @_;
- if($p !~ /^(\S*) (\S*)$/) {
- print STDERR "$ARGV:$.: malformed parameter: $p\n";
- $errors = 1;
- return ("xx", "int");
- }
- return ($1, $2);
-}
-
-my $package = "";
-my $text = "";
-my $c_extern = "/*\n#include <stdint.h>\n";
-my @vars = ();
-while(<>) {
- chomp;
- s/\s+/ /g;
- s/^\s+//;
- s/\s+$//;
- $package = $1 if !$package && /^package (\S+)$/;
- my $nonblock = /^\/\/sysnb /;
- next if !/^\/\/sys / && !$nonblock;
-
- # Line must be of the form
- # func Open(path string, mode int, perm int) (fd int, err error)
- # Split into name, in params, out params.
- if(!/^\/\/sys(nb)? (\w+)\(([^()]*)\)\s*(?:\(([^()]+)\))?\s*(?:=\s*(?:(\w*)\.)?(\w*))?$/) {
- print STDERR "$ARGV:$.: malformed //sys declaration\n";
- $errors = 1;
- next;
- }
- my ($nb, $func, $in, $out, $modname, $sysname) = ($1, $2, $3, $4, $5, $6);
-
- # Split argument lists on comma.
- my @in = parseparamlist($in);
- my @out = parseparamlist($out);
-
- $in = join(', ', @in);
- $out = join(', ', @out);
-
- # Try in vain to keep people from editing this file.
- # The theory is that they jump into the middle of the file
- # without reading the header.
- $text .= "// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT\n\n";
-
- # Check if value return, err return available
- my $errvar = "";
- my $retvar = "";
- my $rettype = "";
- foreach my $p (@out) {
- my ($name, $type) = parseparam($p);
- if($type eq "error") {
- $errvar = $name;
- } else {
- $retvar = $name;
- $rettype = $type;
- }
- }
-
- # System call name.
- #if($func ne "fcntl") {
-
- if($sysname eq "") {
- $sysname = "$func";
- }
-
- $sysname =~ s/([a-z])([A-Z])/${1}_$2/g;
- $sysname =~ y/A-Z/a-z/; # All libc functions are lowercase.
-
- my $C_rettype = "";
- if($rettype eq "unsafe.Pointer") {
- $C_rettype = "uintptr_t";
- } elsif($rettype eq "uintptr") {
- $C_rettype = "uintptr_t";
- } elsif($rettype =~ /^_/) {
- $C_rettype = "uintptr_t";
- } elsif($rettype eq "int") {
- $C_rettype = "int";
- } elsif($rettype eq "int32") {
- $C_rettype = "int";
- } elsif($rettype eq "int64") {
- $C_rettype = "long long";
- } elsif($rettype eq "uint32") {
- $C_rettype = "unsigned int";
- } elsif($rettype eq "uint64") {
- $C_rettype = "unsigned long long";
- } else {
- $C_rettype = "int";
- }
- if($sysname eq "exit") {
- $C_rettype = "void";
- }
-
- # Change types to c
- my @c_in = ();
- foreach my $p (@in) {
- my ($name, $type) = parseparam($p);
- if($type =~ /^\*/) {
- push @c_in, "uintptr_t";
- } elsif($type eq "string") {
- push @c_in, "uintptr_t";
- } elsif($type =~ /^\[\](.*)/) {
- push @c_in, "uintptr_t", "size_t";
- } elsif($type eq "unsafe.Pointer") {
- push @c_in, "uintptr_t";
- } elsif($type eq "uintptr") {
- push @c_in, "uintptr_t";
- } elsif($type =~ /^_/) {
- push @c_in, "uintptr_t";
- } elsif($type eq "int") {
- push @c_in, "int";
- } elsif($type eq "int32") {
- push @c_in, "int";
- } elsif($type eq "int64") {
- push @c_in, "long long";
- } elsif($type eq "uint32") {
- push @c_in, "unsigned int";
- } elsif($type eq "uint64") {
- push @c_in, "unsigned long long";
- } else {
- push @c_in, "int";
- }
- }
-
- if ($func ne "fcntl" && $func ne "FcntlInt" && $func ne "readlen" && $func ne "writelen") {
- # Imports of system calls from libc
- $c_extern .= "$C_rettype $sysname";
- my $c_in = join(', ', @c_in);
- $c_extern .= "($c_in);\n";
- }
-
- # So file name.
- if($aix) {
- if($modname eq "") {
- $modname = "libc.a/shr_64.o";
- } else {
- print STDERR "$func: only syscall using libc are available\n";
- $errors = 1;
- next;
- }
- }
-
- my $strconvfunc = "C.CString";
- my $strconvtype = "*byte";
-
- # Go function header.
- if($out ne "") {
- $out = " ($out)";
- }
- if($text ne "") {
- $text .= "\n"
- }
-
- $text .= sprintf "func %s(%s)%s {\n", $func, join(', ', @in), $out ;
-
- # Prepare arguments to call.
- my @args = ();
- my $n = 0;
- my $arg_n = 0;
- foreach my $p (@in) {
- my ($name, $type) = parseparam($p);
- if($type =~ /^\*/) {
- push @args, "C.uintptr_t(uintptr(unsafe.Pointer($name)))";
- } elsif($type eq "string" && $errvar ne "") {
- $text .= "\t_p$n := uintptr(unsafe.Pointer($strconvfunc($name)))\n";
- push @args, "C.uintptr_t(_p$n)";
- $n++;
- } elsif($type eq "string") {
- print STDERR "$ARGV:$.: $func uses string arguments, but has no error return\n";
- $text .= "\t_p$n := uintptr(unsafe.Pointer($strconvfunc($name)))\n";
- push @args, "C.uintptr_t(_p$n)";
- $n++;
- } elsif($type =~ /^\[\](.*)/) {
- # Convert slice into pointer, length.
- # Have to be careful not to take address of &a[0] if len == 0:
- # pass nil in that case.
- $text .= "\tvar _p$n *$1\n";
- $text .= "\tif len($name) > 0 {\n\t\t_p$n = \&$name\[0]\n\t}\n";
- push @args, "C.uintptr_t(uintptr(unsafe.Pointer(_p$n)))";
- $n++;
- $text .= "\tvar _p$n int\n";
- $text .= "\t_p$n = len($name)\n";
- push @args, "C.size_t(_p$n)";
- $n++;
- } elsif($type eq "int64" && $_32bit ne "") {
- if($_32bit eq "big-endian") {
- push @args, "uintptr($name >> 32)", "uintptr($name)";
- } else {
- push @args, "uintptr($name)", "uintptr($name >> 32)";
- }
- $n++;
- } elsif($type eq "bool") {
- $text .= "\tvar _p$n uint32\n";
- $text .= "\tif $name {\n\t\t_p$n = 1\n\t} else {\n\t\t_p$n = 0\n\t}\n";
- push @args, "_p$n";
- $n++;
- } elsif($type =~ /^_/) {
- push @args, "C.uintptr_t(uintptr($name))";
- } elsif($type eq "unsafe.Pointer") {
- push @args, "C.uintptr_t(uintptr($name))";
- } elsif($type eq "int") {
- if (($arg_n == 2) && (($func eq "readlen") || ($func eq "writelen"))) {
- push @args, "C.size_t($name)";
- } elsif ($arg_n == 0 && $func eq "fcntl") {
- push @args, "C.uintptr_t($name)";
- } elsif (($arg_n == 2) && (($func eq "fcntl") || ($func eq "FcntlInt"))) {
- push @args, "C.uintptr_t($name)";
- } else {
- push @args, "C.int($name)";
- }
- } elsif($type eq "int32") {
- push @args, "C.int($name)";
- } elsif($type eq "int64") {
- push @args, "C.longlong($name)";
- } elsif($type eq "uint32") {
- push @args, "C.uint($name)";
- } elsif($type eq "uint64") {
- push @args, "C.ulonglong($name)";
- } elsif($type eq "uintptr") {
- push @args, "C.uintptr_t($name)";
- } else {
- push @args, "C.int($name)";
- }
- $arg_n++;
- }
- my $nargs = @args;
-
-
- # Determine which form to use; pad args with zeros.
- if ($nonblock) {
- }
-
- my $args = join(', ', @args);
- my $call = "";
- if ($sysname eq "exit") {
- if ($errvar ne "") {
- $call .= "er :=";
- } else {
- $call .= "";
- }
- } elsif ($errvar ne "") {
- $call .= "r0,er :=";
- } elsif ($retvar ne "") {
- $call .= "r0,_ :=";
- } else {
- $call .= ""
- }
- $call .= "C.$sysname($args)";
-
- # Assign return values.
- my $body = "";
- my $failexpr = "";
-
- for(my $i=0; $i<@out; $i++) {
- my $p = $out[$i];
- my ($name, $type) = parseparam($p);
- my $reg = "";
- if($name eq "err") {
- $reg = "e1";
- } else {
- $reg = "r0";
- }
- if($reg ne "e1" ) {
- $body .= "\t$name = $type($reg)\n";
- }
- }
-
- # verify return
- if ($sysname ne "exit" && $errvar ne "") {
- if ($C_rettype =~ /^uintptr/) {
- $body .= "\tif \(uintptr\(r0\) ==\^uintptr\(0\) && er != nil\) {\n";
- $body .= "\t\t$errvar = er\n";
- $body .= "\t}\n";
- } else {
- $body .= "\tif \(r0 ==-1 && er != nil\) {\n";
- $body .= "\t\t$errvar = er\n";
- $body .= "\t}\n";
- }
- } elsif ($errvar ne "") {
- $body .= "\tif \(er != nil\) {\n";
- $body .= "\t\t$errvar = er\n";
- $body .= "\t}\n";
- }
-
- $text .= "\t$call\n";
- $text .= $body;
-
- $text .= "\treturn\n";
- $text .= "}\n";
-}
-
-if($errors) {
- exit 1;
-}
-
-print <<EOF;
-// $cmdline
-// Code generated by the command above; see README.md. DO NOT EDIT.
-
-// +build $tags
-
-package $package
-
-
-$c_extern
-*/
-import "C"
-import (
- "unsafe"
- "syscall"
-)
-
-
-EOF
-
-print "import \"golang.org/x/sys/unix\"\n" if $package ne "unix";
-
-chomp($_=<<EOF);
-
-$text
-EOF
-print $_;
-exit 0;