diff options
Diffstat (limited to 'vendor/github.com/fsouza/go-dockerclient/external/golang.org/x/sys/unix/mksyscall_solaris.pl')
-rwxr-xr-x | vendor/github.com/fsouza/go-dockerclient/external/golang.org/x/sys/unix/mksyscall_solaris.pl | 294 |
1 files changed, 294 insertions, 0 deletions
diff --git a/vendor/github.com/fsouza/go-dockerclient/external/golang.org/x/sys/unix/mksyscall_solaris.pl b/vendor/github.com/fsouza/go-dockerclient/external/golang.org/x/sys/unix/mksyscall_solaris.pl new file mode 100755 index 0000000..06bade7 --- /dev/null +++ b/vendor/github.com/fsouza/go-dockerclient/external/golang.org/x/sys/unix/mksyscall_solaris.pl | |||
@@ -0,0 +1,294 @@ | |||
1 | #!/usr/bin/env perl | ||
2 | # Copyright 2009 The Go Authors. All rights reserved. | ||
3 | # Use of this source code is governed by a BSD-style | ||
4 | # license that can be found in the LICENSE file. | ||
5 | |||
6 | # This program reads a file containing function prototypes | ||
7 | # (like syscall_solaris.go) and generates system call bodies. | ||
8 | # The prototypes are marked by lines beginning with "//sys" | ||
9 | # and read like func declarations if //sys is replaced by func, but: | ||
10 | # * The parameter lists must give a name for each argument. | ||
11 | # This includes return parameters. | ||
12 | # * The parameter lists must give a type for each argument: | ||
13 | # the (x, y, z int) shorthand is not allowed. | ||
14 | # * If the return parameter is an error number, it must be named err. | ||
15 | # * If go func name needs to be different than its libc name, | ||
16 | # * or the function is not in libc, name could be specified | ||
17 | # * at the end, after "=" sign, like | ||
18 | # //sys getsockopt(s int, level int, name int, val uintptr, vallen *_Socklen) (err error) = libsocket.getsockopt | ||
19 | |||
20 | use strict; | ||
21 | |||
22 | my $cmdline = "mksyscall_solaris.pl " . join(' ', @ARGV); | ||
23 | my $errors = 0; | ||
24 | my $_32bit = ""; | ||
25 | |||
26 | binmode STDOUT; | ||
27 | |||
28 | if($ARGV[0] eq "-b32") { | ||
29 | $_32bit = "big-endian"; | ||
30 | shift; | ||
31 | } elsif($ARGV[0] eq "-l32") { | ||
32 | $_32bit = "little-endian"; | ||
33 | shift; | ||
34 | } | ||
35 | |||
36 | if($ARGV[0] =~ /^-/) { | ||
37 | print STDERR "usage: mksyscall_solaris.pl [-b32 | -l32] [file ...]\n"; | ||
38 | exit 1; | ||
39 | } | ||
40 | |||
41 | if($ENV{'GOARCH'} eq "" || $ENV{'GOOS'} eq "") { | ||
42 | print STDERR "GOARCH or GOOS not defined in environment\n"; | ||
43 | exit 1; | ||
44 | } | ||
45 | |||
46 | sub parseparamlist($) { | ||
47 | my ($list) = @_; | ||
48 | $list =~ s/^\s*//; | ||
49 | $list =~ s/\s*$//; | ||
50 | if($list eq "") { | ||
51 | return (); | ||
52 | } | ||
53 | return split(/\s*,\s*/, $list); | ||
54 | } | ||
55 | |||
56 | sub parseparam($) { | ||
57 | my ($p) = @_; | ||
58 | if($p !~ /^(\S*) (\S*)$/) { | ||
59 | print STDERR "$ARGV:$.: malformed parameter: $p\n"; | ||
60 | $errors = 1; | ||
61 | return ("xx", "int"); | ||
62 | } | ||
63 | return ($1, $2); | ||
64 | } | ||
65 | |||
66 | my $package = ""; | ||
67 | my $text = ""; | ||
68 | my $dynimports = ""; | ||
69 | my $linknames = ""; | ||
70 | my @vars = (); | ||
71 | while(<>) { | ||
72 | chomp; | ||
73 | s/\s+/ /g; | ||
74 | s/^\s+//; | ||
75 | s/\s+$//; | ||
76 | $package = $1 if !$package && /^package (\S+)$/; | ||
77 | my $nonblock = /^\/\/sysnb /; | ||
78 | next if !/^\/\/sys / && !$nonblock; | ||
79 | |||
80 | # Line must be of the form | ||
81 | # func Open(path string, mode int, perm int) (fd int, err error) | ||
82 | # Split into name, in params, out params. | ||
83 | if(!/^\/\/sys(nb)? (\w+)\(([^()]*)\)\s*(?:\(([^()]+)\))?\s*(?:=\s*(?:(\w*)\.)?(\w*))?$/) { | ||
84 | print STDERR "$ARGV:$.: malformed //sys declaration\n"; | ||
85 | $errors = 1; | ||
86 | next; | ||
87 | } | ||
88 | my ($nb, $func, $in, $out, $modname, $sysname) = ($1, $2, $3, $4, $5, $6); | ||
89 | |||
90 | # Split argument lists on comma. | ||
91 | my @in = parseparamlist($in); | ||
92 | my @out = parseparamlist($out); | ||
93 | |||
94 | # So file name. | ||
95 | if($modname eq "") { | ||
96 | $modname = "libc"; | ||
97 | } | ||
98 | |||
99 | # System call name. | ||
100 | if($sysname eq "") { | ||
101 | $sysname = "$func"; | ||
102 | } | ||
103 | |||
104 | # System call pointer variable name. | ||
105 | my $sysvarname = "proc$sysname"; | ||
106 | |||
107 | my $strconvfunc = "BytePtrFromString"; | ||
108 | my $strconvtype = "*byte"; | ||
109 | |||
110 | $sysname =~ y/A-Z/a-z/; # All libc functions are lowercase. | ||
111 | |||
112 | # Runtime import of function to allow cross-platform builds. | ||
113 | $dynimports .= "//go:cgo_import_dynamic libc_${sysname} ${sysname} \"$modname.so\"\n"; | ||
114 | # Link symbol to proc address variable. | ||
115 | $linknames .= "//go:linkname ${sysvarname} libc_${sysname}\n"; | ||
116 | # Library proc address variable. | ||
117 | push @vars, $sysvarname; | ||
118 | |||
119 | # Go function header. | ||
120 | $out = join(', ', @out); | ||
121 | if($out ne "") { | ||
122 | $out = " ($out)"; | ||
123 | } | ||
124 | if($text ne "") { | ||
125 | $text .= "\n" | ||
126 | } | ||
127 | $text .= sprintf "func %s(%s)%s {\n", $func, join(', ', @in), $out; | ||
128 | |||
129 | # Check if err return available | ||
130 | my $errvar = ""; | ||
131 | foreach my $p (@out) { | ||
132 | my ($name, $type) = parseparam($p); | ||
133 | if($type eq "error") { | ||
134 | $errvar = $name; | ||
135 | last; | ||
136 | } | ||
137 | } | ||
138 | |||
139 | # Prepare arguments to Syscall. | ||
140 | my @args = (); | ||
141 | my @uses = (); | ||
142 | my $n = 0; | ||
143 | foreach my $p (@in) { | ||
144 | my ($name, $type) = parseparam($p); | ||
145 | if($type =~ /^\*/) { | ||
146 | push @args, "uintptr(unsafe.Pointer($name))"; | ||
147 | } elsif($type eq "string" && $errvar ne "") { | ||
148 | $text .= "\tvar _p$n $strconvtype\n"; | ||
149 | $text .= "\t_p$n, $errvar = $strconvfunc($name)\n"; | ||
150 | $text .= "\tif $errvar != nil {\n\t\treturn\n\t}\n"; | ||
151 | push @args, "uintptr(unsafe.Pointer(_p$n))"; | ||
152 | push @uses, "use(unsafe.Pointer(_p$n))"; | ||
153 | $n++; | ||
154 | } elsif($type eq "string") { | ||
155 | print STDERR "$ARGV:$.: $func uses string arguments, but has no error return\n"; | ||
156 | $text .= "\tvar _p$n $strconvtype\n"; | ||
157 | $text .= "\t_p$n, _ = $strconvfunc($name)\n"; | ||
158 | push @args, "uintptr(unsafe.Pointer(_p$n))"; | ||
159 | push @uses, "use(unsafe.Pointer(_p$n))"; | ||
160 | $n++; | ||
161 | } elsif($type =~ /^\[\](.*)/) { | ||
162 | # Convert slice into pointer, length. | ||
163 | # Have to be careful not to take address of &a[0] if len == 0: | ||
164 | # pass nil in that case. | ||
165 | $text .= "\tvar _p$n *$1\n"; | ||
166 | $text .= "\tif len($name) > 0 {\n\t\t_p$n = \&$name\[0]\n\t}\n"; | ||
167 | push @args, "uintptr(unsafe.Pointer(_p$n))", "uintptr(len($name))"; | ||
168 | $n++; | ||
169 | } elsif($type eq "int64" && $_32bit ne "") { | ||
170 | if($_32bit eq "big-endian") { | ||
171 | push @args, "uintptr($name >> 32)", "uintptr($name)"; | ||
172 | } else { | ||
173 | push @args, "uintptr($name)", "uintptr($name >> 32)"; | ||
174 | } | ||
175 | } elsif($type eq "bool") { | ||
176 | $text .= "\tvar _p$n uint32\n"; | ||
177 | $text .= "\tif $name {\n\t\t_p$n = 1\n\t} else {\n\t\t_p$n = 0\n\t}\n"; | ||
178 | push @args, "uintptr(_p$n)"; | ||
179 | $n++; | ||
180 | } else { | ||
181 | push @args, "uintptr($name)"; | ||
182 | } | ||
183 | } | ||
184 | my $nargs = @args; | ||
185 | |||
186 | # Determine which form to use; pad args with zeros. | ||
187 | my $asm = "sysvicall6"; | ||
188 | if ($nonblock) { | ||
189 | $asm = "rawSysvicall6"; | ||
190 | } | ||
191 | if(@args <= 6) { | ||
192 | while(@args < 6) { | ||
193 | push @args, "0"; | ||
194 | } | ||
195 | } else { | ||
196 | print STDERR "$ARGV:$.: too many arguments to system call\n"; | ||
197 | } | ||
198 | |||
199 | # Actual call. | ||
200 | my $args = join(', ', @args); | ||
201 | my $call = "$asm(uintptr(unsafe.Pointer(&$sysvarname)), $nargs, $args)"; | ||
202 | |||
203 | # Assign return values. | ||
204 | my $body = ""; | ||
205 | my $failexpr = ""; | ||
206 | my @ret = ("_", "_", "_"); | ||
207 | my @pout= (); | ||
208 | my $do_errno = 0; | ||
209 | for(my $i=0; $i<@out; $i++) { | ||
210 | my $p = $out[$i]; | ||
211 | my ($name, $type) = parseparam($p); | ||
212 | my $reg = ""; | ||
213 | if($name eq "err") { | ||
214 | $reg = "e1"; | ||
215 | $ret[2] = $reg; | ||
216 | $do_errno = 1; | ||
217 | } else { | ||
218 | $reg = sprintf("r%d", $i); | ||
219 | $ret[$i] = $reg; | ||
220 | } | ||
221 | if($type eq "bool") { | ||
222 | $reg = "$reg != 0"; | ||
223 | } | ||
224 | if($type eq "int64" && $_32bit ne "") { | ||
225 | # 64-bit number in r1:r0 or r0:r1. | ||
226 | if($i+2 > @out) { | ||
227 | print STDERR "$ARGV:$.: not enough registers for int64 return\n"; | ||
228 | } | ||
229 | if($_32bit eq "big-endian") { | ||
230 | $reg = sprintf("int64(r%d)<<32 | int64(r%d)", $i, $i+1); | ||
231 | } else { | ||
232 | $reg = sprintf("int64(r%d)<<32 | int64(r%d)", $i+1, $i); | ||
233 | } | ||
234 | $ret[$i] = sprintf("r%d", $i); | ||
235 | $ret[$i+1] = sprintf("r%d", $i+1); | ||
236 | } | ||
237 | if($reg ne "e1") { | ||
238 | $body .= "\t$name = $type($reg)\n"; | ||
239 | } | ||
240 | } | ||
241 | if ($ret[0] eq "_" && $ret[1] eq "_" && $ret[2] eq "_") { | ||
242 | $text .= "\t$call\n"; | ||
243 | } else { | ||
244 | $text .= "\t$ret[0], $ret[1], $ret[2] := $call\n"; | ||
245 | } | ||
246 | foreach my $use (@uses) { | ||
247 | $text .= "\t$use\n"; | ||
248 | } | ||
249 | $text .= $body; | ||
250 | |||
251 | if ($do_errno) { | ||
252 | $text .= "\tif e1 != 0 {\n"; | ||
253 | $text .= "\t\terr = e1\n"; | ||
254 | $text .= "\t}\n"; | ||
255 | } | ||
256 | $text .= "\treturn\n"; | ||
257 | $text .= "}\n"; | ||
258 | } | ||
259 | |||
260 | if($errors) { | ||
261 | exit 1; | ||
262 | } | ||
263 | |||
264 | print <<EOF; | ||
265 | // $cmdline | ||
266 | // MACHINE GENERATED BY THE COMMAND ABOVE; DO NOT EDIT | ||
267 | |||
268 | // +build $ENV{'GOARCH'},$ENV{'GOOS'} | ||
269 | |||
270 | package $package | ||
271 | |||
272 | import ( | ||
273 | "syscall" | ||
274 | "unsafe" | ||
275 | ) | ||
276 | EOF | ||
277 | |||
278 | print "import \"golang.org/x/sys/unix\"\n" if $package ne "unix"; | ||
279 | |||
280 | my $vardecls = "\t" . join(",\n\t", @vars); | ||
281 | $vardecls .= " syscallFunc"; | ||
282 | |||
283 | chomp($_=<<EOF); | ||
284 | |||
285 | $dynimports | ||
286 | $linknames | ||
287 | var ( | ||
288 | $vardecls | ||
289 | ) | ||
290 | |||
291 | $text | ||
292 | EOF | ||
293 | print $_; | ||
294 | exit 0; | ||