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1 | # ========== Copyright Header Begin ========================================== |
2 | # | |
3 | # OpenSPARC T2 Processor File: Command.pm | |
4 | # Copyright (C) 1995-2007 Sun Microsystems, Inc. All Rights Reserved | |
5 | # 4150 Network Circle, Santa Clara, California 95054, U.S.A. | |
6 | # | |
7 | # * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. | |
8 | # | |
9 | # This program is free software; you can redistribute it and/or modify | |
10 | # it under the terms of the GNU General Public License as published by | |
11 | # the Free Software Foundation; version 2 of the License. | |
12 | # | |
13 | # This program is distributed in the hope that it will be useful, | |
14 | # but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | # GNU General Public License for more details. | |
17 | # | |
18 | # You should have received a copy of the GNU General Public License | |
19 | # along with this program; if not, write to the Free Software | |
20 | # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
21 | # | |
22 | # For the avoidance of doubt, and except that if any non-GPL license | |
23 | # choice is available it will apply instead, Sun elects to use only | |
24 | # the General Public License version 2 (GPLv2) at this time for any | |
25 | # software where a choice of GPL license versions is made | |
26 | # available with the language indicating that GPLv2 or any later version | |
27 | # may be used, or where a choice of which version of the GPL is applied is | |
28 | # otherwise unspecified. | |
29 | # | |
30 | # Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, | |
31 | # CA 95054 USA or visit www.sun.com if you need additional information or | |
32 | # have any questions. | |
33 | # | |
34 | # ========== Copyright Header End ============================================ | |
35 | # -*- perl -*- | |
36 | ||
37 | package Midas::Command; | |
38 | use strict; | |
39 | ||
40 | use Getopt::Long; | |
41 | use File::Spec; | |
42 | use File::Basename; | |
43 | use File::Spec; | |
44 | use Cwd; | |
45 | ||
46 | use Midas::Error; | |
47 | use Midas::Globals; | |
48 | ||
49 | use TRELoad 'BitFieldTie'; | |
50 | ||
51 | require Exporter; | |
52 | ||
53 | our @ISA = qw(Exporter); | |
54 | our @EXPORT = qw(run_command chat fatal banner string2bf hexstring2bf | |
55 | verbose opt_n | |
56 | ); | |
57 | ||
58 | our $Prg = basename $0; | |
59 | #our %opt = ( verbose => 1 ); | |
60 | our $Verbose = 1; | |
61 | our $N = 0; | |
62 | ||
63 | ############################################################################## | |
64 | ||
65 | sub verbose { | |
66 | return $$Verbose if ref $Verbose; | |
67 | return $Verbose; | |
68 | } | |
69 | ||
70 | ############################################################################## | |
71 | ||
72 | sub opt_n { | |
73 | return $$N if ref $N; | |
74 | return $N; | |
75 | } | |
76 | ||
77 | ############################################################################## | |
78 | ||
79 | sub fatal { | |
80 | my $msg = shift; | |
81 | my $code = shift; | |
82 | ||
83 | my $obj = Midas::Error->throw($msg, $code); | |
84 | ||
85 | die $obj; | |
86 | } | |
87 | ||
88 | ############################################################################## | |
89 | ||
90 | sub chat { | |
91 | my $msgs = shift; | |
92 | my $level = shift; | |
93 | ||
94 | $level = 1 unless defined $level; | |
95 | return unless verbose >= $level; | |
96 | ||
97 | local($_); | |
98 | my @lines = split /\n/, "$msgs"; | |
99 | my $string = "$Prg: " . (join "\n$Prg: $_", @lines); | |
100 | ||
101 | print "$string\n"; | |
102 | } | |
103 | ||
104 | ############################################################################## | |
105 | ||
106 | sub banner { | |
107 | my @lines = @_; | |
108 | ||
109 | chat "###########################################################\n", 2; | |
110 | ||
111 | foreach my $line (@lines) { | |
112 | print "$Prg: ## $line\n" if verbose > 0; | |
113 | } | |
114 | ||
115 | chat "###########################################################\n", 2; | |
116 | } | |
117 | ||
118 | ############################################################################## | |
119 | ||
120 | sub configure { | |
121 | my %args = @_; | |
122 | ||
123 | foreach my $key (keys %args) { | |
124 | if($key eq 'verbose') { | |
125 | $Verbose = $args{$key}; | |
126 | } elsif($key eq 'n') { | |
127 | $N = $args{$key}; | |
128 | } else { | |
129 | fatal "Midas::Command does not recongnize configuration option ". | |
130 | "$key.\n"; | |
131 | } | |
132 | } | |
133 | ||
134 | return ( verbose => $Verbose, | |
135 | n => $N, | |
136 | ); | |
137 | ||
138 | } | |
139 | ||
140 | ############################################################################## | |
141 | ||
142 | sub run_command { | |
143 | my $command = shift; | |
144 | my @flags = @_; | |
145 | ||
146 | my %cmd_opt = ( | |
147 | verbose => 1, | |
148 | fatal => 1, | |
149 | errcode => M_CMDFAIL, | |
150 | pass_errcode => 0, | |
151 | ); | |
152 | my @options = qw( verbose=i fatal! errcode=i pass_errcode! ); | |
153 | local (@ARGV) = @flags; | |
154 | Getopt::Long::Configure('no_pass_through'); | |
155 | GetOptions(\%cmd_opt, @options) or | |
156 | fatal "Cannot parse flags to run_command: @flags\n"; | |
157 | ||
158 | if(verbose >= $cmd_opt{verbose}) { | |
159 | print "$Prg: $command\n"; | |
160 | } | |
161 | my $status = 0; | |
162 | $status = system($command) unless opt_n; | |
163 | if($cmd_opt{fatal} and $status) { | |
164 | my $exit = $status >> 8; | |
165 | my $sig = $status & 127; | |
166 | my $core = $status & 128; | |
167 | my $core_msg = $core ? "Dumped core." : ""; | |
168 | ||
169 | if($sig) { | |
170 | fatal "Command \"$command\" died via signal $sig. $core_msg\n", | |
171 | $cmd_opt{errcode}; | |
172 | } | |
173 | ||
174 | if($cmd_opt{pass_errcode} and exists $ERRCODES{$exit}) { | |
175 | fatal "Command \"$command\" failed. $core_msg\n", $exit; | |
176 | } else { | |
177 | fatal "Command \"$command\" failed with status $exit. $core_msg\n", | |
178 | $cmd_opt{errcode}; | |
179 | } | |
180 | } | |
181 | } | |
182 | ||
183 | ############################################################################## | |
184 | ||
185 | sub string2bf { | |
186 | my $string = shift; | |
187 | my $width = shift; | |
188 | ||
189 | fatal "Cannot run string2bf without a width argument!\n", M_CODE | |
190 | unless defined $width; | |
191 | ||
192 | my $ishex = 0; | |
193 | if($string =~ /^\s*0[xX]/ or ref($string) or $CONFIG{default_radix} eq 'hex') | |
194 | { | |
195 | $ishex = 1; | |
196 | # Test for overflow | |
197 | (my $mystring = $string) =~ s/^\s*0[xX]//; | |
198 | $mystring =~ s/\s*$//; | |
199 | my $max_digits = int($width / 4); | |
200 | $max_digits++ if (($max_digits) * 4 != $width); | |
201 | ||
202 | if(length $mystring > $max_digits) { | |
203 | my $difference = (length $mystring) - $max_digits; | |
204 | my $leader = substr($mystring, 0, $difference); | |
205 | return "Hex overflow: \"$string\" won't fit in $width bits!\n" | |
206 | unless $leader eq ('0' x $difference); | |
207 | } | |
208 | } else { | |
209 | ||
210 | my $max_bf = BitFieldTie->new(65, "1"); | |
211 | $max_bf->left_shift($width); | |
212 | ||
213 | my $test_bf; | |
214 | eval { | |
215 | $test_bf = BitFieldTie->new_dec(65, $string); | |
216 | }; | |
217 | if(not $@) { | |
218 | if($test_bf->ucompare($max_bf) >= 0) { | |
219 | return "Dec Overflow: \"$string\" won't fit in $width bits!\n"; | |
220 | } | |
221 | } | |
222 | ||
223 | } | |
224 | ||
225 | ||
226 | my $bf; | |
227 | eval { | |
228 | if($ishex) { | |
229 | $bf = BitFieldTie->new($width, $string); | |
230 | } else { | |
231 | $bf = BitFieldTie->new_dec($width, $string); | |
232 | } | |
233 | }; | |
234 | if($@) { | |
235 | return $@; | |
236 | } else { | |
237 | return $bf; | |
238 | } | |
239 | } | |
240 | ||
241 | ############################################################################## | |
242 | ||
243 | sub hexstring2bf { | |
244 | my $string = shift; | |
245 | my $width = shift; | |
246 | ||
247 | $string = "0x$string" unless $string =~ /^\s*0[xX]/; | |
248 | return string2bf($string, $width); | |
249 | } | |
250 | ||
251 | ############################################################################## | |
252 | 1; |