3 # Program: GenLibDeps.pl
5 # Synopsis: Generate HTML output that shows the dependencies between a set of
6 # libraries. The output of this script should periodically replace
7 # the similar content in the UsingLibraries.html document.
9 # Syntax: GenLibDeps.pl [-flat] <directory_with_libraries_in_it>
15 while (scalar(@ARGV) and ($_ = $ARGV[0], /^[-+]/)) {
17 last if /^--$/; # Stop processing arguments on --
19 # List command line options here...
20 if (/^-flat$/) { $FLAT = 1; next; }
21 if (/^-why/) { $WHY = 1; $FLAT = 1; next; }
22 print "Unknown option: $_ : ignoring!\n";
25 # Give first option a name.
26 my $Directory = $ARGV[0];
28 # Find the "dot" program
31 chomp($DotPath = `which dot`);
32 die "Can't find 'dot'" if (! -x "$DotPath");
35 chomp(my $nmPath=`which nm`);
36 die "Can't find 'nm'" if (! -x "$nmPath");
38 # Open the directory and read its contents, sorting by name and differentiating
39 # by whether its a library (.a) or an object file (.o)
40 opendir DIR,$Directory;
41 my @files = readdir DIR;
43 @libs = grep(/libLLVM.*\.a$/,sort(@files));
44 @objs = grep(/LLVM.*\.o$/,sort(@files));
46 # Declare the hashes we will use to keep track of the library and object file
51 # Gather definitions from the libraries
52 foreach $lib (@libs ) {
54 "$nmPath -g $Directory/$lib | grep ' [ABCDGRST] ' | sed -e 's/^[0-9A-Fa-f]* [ABCDGRST] //' | sort | uniq |";
62 # Gather definitions from the object files.
63 foreach $obj (@objs ) {
65 "$nmPath -g $Directory/$obj | grep ' [ABCDGRST] ' | sed -e 's/^[0-9A-Fa-f]* [ABCDGRST] //' | sort | uniq |";
73 # Generate one entry in the <dl> list. This generates the <dt> and <dd> elements
74 # for one library or object file. The <dt> provides the name of the library or
75 # object. The <dd> provides a list of the libraries/objects it depends on.
79 $lib_ns =~ s/(.*)\.[oa]/$1/;
82 if ($WHY) { print "\n"; }
84 print " <dt><b>$lib</b</dt><dd><ul>\n";
87 "$nmPath -g -u $Directory/$lib | sed -e 's/^ *U //' | sort | uniq |";
92 if (defined($libdefs{$_}) && $libdefs{$_} ne $lib) {
93 $DepLibs{$libdefs{$_}} = [] unless exists $DepLibs{$libdefs{$_}};
94 push(@{$DepLibs{$libdefs{$_}}}, $_);
95 } elsif (defined($objdefs{$_}) && $objdefs{$_} ne $lib) {
97 $libroot =~ s/lib(.*).a/$1/;
98 if ($objdefs{$_} ne "$libroot.o") {
99 $DepLibs{$objdefs{$_}} = [] unless exists $DepLibs{$objdefs{$_}};
100 push(@{$DepLibs{$objdefs{$_}}}, $_);
105 for my $key (sort keys %DepLibs) {
110 my @syms = @{$DepLibs{$key}};
111 foreach $sym (@syms) {
116 print " <li>$key</li>\n";
118 $suffix = substr($key,length($key)-1,1);
119 $key =~ s/(.*)\.[oa]/$1/;
120 if ($suffix eq "a") {
121 if (!$FLAT) { print DOT "$lib_ns -> $key [ weight=0 ];\n" };
123 if (!$FLAT) { print DOT "$lib_ns -> $key [ weight=10];\n" };
131 print " </ul></dd>\n";
135 # Make sure we flush on write. This is slower but correct based on the way we
136 # write I/O in gen_one_entry.
139 # Print the definition list tag
143 open DOT, "| $DotPath -Tgif > libdeps.gif";
145 print DOT "digraph LibDeps {size=\"40,15\"; ratio=\"1.33333\"; margin=\"0.25\"; rankdir=\"LR\"; mclimit=\"50.0\"; ordering=\"out\"; center=\"1\";\n";
146 print DOT "node [shape=\"box\",color=\"#000088\",fillcolor=\"#FFFACD\",fontcolor=\"#5577DD\",style=\"filled\",fontsize=\"24\"];\n";
147 print DOT "edge [style=\"solid\",color=\"#000088\"];\n";
150 # Print libraries first
151 foreach $lib (@libs) {
158 open DOT, "| $DotPath -Tgif > objdeps.gif";
159 print DOT "digraph ObjDeps {size=\"40,15\"; ratio=\"1.33333\"; margin=\"0.25\"; rankdir=\"LR\"; mclimit=\"50.0\"; ordering=\"out\"; center=\"1\";\n";
160 print DOT "node [shape=\"box\",color=\"#000088\",fillcolor=\"#FFFACD\",fontcolor=\"#5577DD\",style=\"filled\",fontsize=\"24\"];\n";
161 print DOT "edge [style=\"solid\",color=\"#000088\"];\n";
164 # Print objects second
165 foreach $obj (@objs) {
173 # Print end tag of definition list element