3 # perl replacement of genmdesc.c for use when cross-compiling
8 # must keep in sync with mini.h
9 my @spec_names = qw(dest src1 src2 len clob);
10 sub INST_DEST () {return 0;}
11 sub INST_SRC1 () {return 1;}
12 sub INST_SRC2 () {return 2;}
13 sub INST_LEN () {return 3;}
14 sub INST_CLOB () {return 4;}
15 sub INST_MAX () {return 5;}
17 # this must include all the #defines used in mini-ops.h
18 my @defines = qw (__i386__ __x86_64__ __ppc__ __powerpc__ __arm__
19 __sparc__ sparc __s390__ s390 __ia64__ __alpha__ __mips__);
25 my ($srcdir, $arch) = @_;
26 my $opcodes_def = "$srcdir/../cil/opcode.def";
30 open (OPS, "$opcodes_def") || die "Cannot open $opcodes_def: $!";
32 next unless /OPDEF\s*\(\s*(\S+?)\s*,\s*"(.*?)"/;
33 my ($sym, $name) = ($1, $2);
34 push @opcodes, [$sym, $name];
35 $table{$name} = {num => $i, name => $name};
39 my $cpp = "cpp -undef ";
42 $arch_found = 1 if $arch eq $_;
44 die "$arch arch is not supported.\n" unless $arch_found;
46 $cpp .= " -D$arch $srcdir/mini-ops.h|";
47 #print "Running: $cpp\n";
48 open (OPS, $cpp) || die "Cannot execute cpp: $!";
50 next unless /MINI_OP\s*\(\s*(\S+?)\s*,\s*"(.*?)"/;
51 my ($sym, $name) = ($1, $2);
52 push @opcodes, [$sym, $name];
53 $table{$name} = {num => $i, name => $name};
64 open (DESC, $name) || die "Cannot open $name: $!";
72 my @values = split (/\s+/);
73 next unless ($values [0] =~ /(\S+?):/);
75 my $desc = $table {$name};
77 die "Invalid opcode $name at line $line\n" unless defined $desc;
78 die "Duplicated opcode $name at line $line\n" if $desc->{"desc"};
80 $desc->{"comment"} = $comment;
83 #print "values for $name: " . join (' ', @values) . " num: " . int(@values), "\n";
84 for my $val (@values) {
85 if ($val =~ /(\S+):(.*)/) {
86 $desc->{"spec"}->{$1} = $2;
97 foreach (@spec_names) {
98 my $val = $spec->{$_};
105 #print "vals: " . join (' ', @vals) . "\n";
107 for (my $i = 0; $i < @vals; ++$i) {
108 if (defined $vals [$i]) {
109 if ($i == INST_LEN) {
110 $res .= sprintf ("\\x%x\" \"", +$vals [$i]);
112 if ($vals [$i] =~ /^[a-zA-Z0-9]$/) {
115 $res .= sprintf ("\\x%x\" \"", $vals [$i]);
126 my ($fname, $name) = @_;
129 my $idx_array = "const guint16 ${name}_idx [] = {\n";
131 open (OUT, ">$fname") || die "Cannot open file $fname: $!";
132 print OUT "/* File automatically generated by genmdesc, don't change */\n\n";
133 print OUT "const char $name [] = {\n";
134 print OUT "\t\"" . ("\\x0" x INST_MAX) . "\"\t/* null entry */\n";
137 for ($i = 0; $i < @opcodes; ++$i) {
138 my $name = $opcodes [$i]->[1];
139 my $desc = $table {$name};
140 my $spec = $desc->{"spec"};
143 print OUT build_spec ($spec);
144 print OUT "\"\t/* $name */\n";
145 my $pos = $idx * INST_MAX;
146 $idx_array .= "\t$pos,\t/* $name */\n";
149 $idx_array .= "\t0,\t/* $name */\n";
153 print OUT "$idx_array};\n\n";
158 die "genmdesc.pl arch srcdir desc output name\n";
161 my $arch = shift || usage ();
162 my $srcdir = shift || usage ();
163 my $file = shift || usage ();
164 my $output = shift || usage ();
165 my $name = shift || usage ();
167 load_opcodes ($srcdir, $arch);
169 build_table ($output, $name);