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> [path_to_nm_binary]
18 while (scalar(@ARGV) and ($_ = $ARGV[0], /^[-+]/)) {
20 last if /^--$/; # Stop processing arguments on --
22 # List command line options here...
23 if (/^-flat$/) { $FLAT = 1; next; }
24 if (/^-why/) { $WHY = 1; $FLAT = 1; next; }
25 if (/^-perobj$/) { $PEROBJ = 1; next; }
26 if (/^-perobjincl/) { $PEROBJINCL = 1; next;}
27 print "Unknown option: $_ : ignoring!\n";
30 # Give first option a name.
31 my $Directory = $ARGV[0];
32 if (!defined($Directory) || ! -d "$Directory") {
33 die "First argument must specify the directory containing LLVM libs\n";
36 my $nmPath = $ARGV[1];
38 # Find the "dot" program
41 chomp($DotPath = `which dot`);
42 die "Can't find 'dot'" if (! -x "$DotPath");
45 if (defined($ENV{NM})) {
46 chomp($nmPath=$ENV{NM});
49 if (!defined($nmPath) || $nmPath eq "") {
50 chomp($nmPath=`which nm`);
51 die "Can't find 'nm'" if (! -x "$nmPath");
56 $ranlibPath = $ARGV[2];
57 if (defined($ENV{RANLIB})) {
58 chomp($ranlibPath=$ENV{RANLIB});
61 if (!defined($ranlibPath) || $ranlibPath eq "") {
62 chomp($ranlibPath=`which ranlib`);
63 die "Can't find 'ranlib'" if (! -x "$ranlibPath");
67 # Open the directory and read its contents, sorting by name and differentiating
68 # by whether its a library (.a) or an object file (.o)
69 opendir DIR,$Directory;
70 my @files = readdir DIR;
72 my @libs = grep(/libLLVM.*\.(dylib|so|a)$/,sort(@files));
73 # Omit the all-of-llvm shared library.
74 @libs = grep(!/libLLVM-\d\.\d(svn)?\.(dylib|so)/, @libs);
75 my @objs = grep(/LLVM.*\.o$/,sort(@files));
77 # Declare the hashes we will use to keep track of the library and object file
84 # Gather library definitions at object file granularity (optional)
86 foreach my $lib (@libs ) {
87 `$ranlibPath $Directory/$lib`;
89 $libpath =~ s/^libLLVM(.*)\.a/$1/;
90 $libpath =~ s/(.+)CodeGen$/Target\/$1/;
91 $libpath =~ s/(.+)AsmPrinter$/Target\/$1\/AsmPrinter/;
92 $libpath =~ s/(.+)AsmParser$/Target\/$1\/AsmParser/;
93 $libpath =~ s/(.+)Info$/Target\/$1\/TargetInfo/;
94 $libpath =~ s/(.+)Disassembler$/Target\/$1\/Disassembler/;
95 $libpath =~ s/SelectionDAG/CodeGen\/SelectionDAG/;
96 $libpath =~ s/^AsmPrinter/CodeGen\/AsmPrinter/;
97 $libpath =~ s/^BitReader/Bitcode\/Reader/;
98 $libpath =~ s/^BitWriter/Bitcode\/Writer/;
99 $libpath =~ s/^CppBackend/Target\/CppBackend/;
100 $libpath =~ s/^MSIL/Target\/MSIL/;
101 $libpath =~ s/^Core/VMCore/;
102 $libpath =~ s/^Instrumentation/Transforms\/Instrumentation/;
103 $libpath =~ s/^Interpreter/ExecutionEngine\/Interpreter/;
104 $libpath =~ s/^JIT/ExecutionEngine\/JIT/;
105 $libpath =~ s/^ScalarOpts/Transforms\/Scalar/;
106 $libpath =~ s/^TransformUtils/Transforms\/Utils/;
107 $libpath =~ s/^ipa/Analysis\/IPA/;
108 $libpath =~ s/^ipo/Transforms\/IPO/;
109 $libpath = "lib/".$libpath."/";
110 open DEFS, "$nmPath -sg $Directory/$lib|";
113 if (/^([^ ]*) in ([^ ]*)/) {
114 my $objfile = $libpath.$2;
115 $objdefs{$1} = $objfile;
116 $objdeps{$objfile} = {};
117 $libobjs{$lib}{$objfile}=1;
118 # my $p = "../llvm/".$objfile;
119 # $p =~ s/Support\/reg(.*).o/Support\/reg$1.c/;
126 close DEFS or die "nm failed";
128 foreach my $lib (@libs ) {
130 $libpath =~ s/^libLLVM(.*)\.a/$1/;
131 $libpath =~ s/(.+)CodeGen$/Target\/$1/;
132 $libpath =~ s/(.+)AsmPrinter$/Target\/$1\/AsmPrinter/;
133 $libpath =~ s/(.+)AsmParser$/Target\/$1\/AsmParser/;
134 $libpath =~ s/(.+)Info$/Target\/$1\/TargetInfo/;
135 $libpath =~ s/(.+)Disassembler$/Target\/$1\/Disassembler/;
136 $libpath =~ s/SelectionDAG/CodeGen\/SelectionDAG/;
137 $libpath =~ s/^AsmPrinter/CodeGen\/AsmPrinter/;
138 $libpath =~ s/^BitReader/Bitcode\/Reader/;
139 $libpath =~ s/^BitWriter/Bitcode\/Writer/;
140 $libpath =~ s/^CppBackend/Target\/CppBackend/;
141 $libpath =~ s/^MSIL/Target\/MSIL/;
142 $libpath =~ s/^Core/VMCore/;
143 $libpath =~ s/^Instrumentation/Transforms\/Instrumentation/;
144 $libpath =~ s/^Interpreter/ExecutionEngine\/Interpreter/;
145 $libpath =~ s/^JIT/ExecutionEngine\/JIT/;
146 $libpath =~ s/^ScalarOpts/Transforms\/Scalar/;
147 $libpath =~ s/^TransformUtils/Transforms\/Utils/;
148 $libpath =~ s/^ipa/Analysis\/IPA/;
149 $libpath =~ s/^ipo/Transforms\/IPO/;
150 $libpath = "lib/".$libpath."/";
151 open UDEFS, "$nmPath -Aup $Directory/$lib|";
155 my $obj = $libpath.$1;
157 if (defined($objdefs{$_})) {
158 $objdeps{$obj}{$objdefs{$_}}=1;
162 close UDEFS or die "nm failed"
165 # Gather definitions from the libraries
166 foreach my $lib (@libs ) {
167 open DEFS, "$nmPath -g $Directory/$lib|";
169 next if (! / [ABCDGRST] /);
170 s/^[^ ]* [ABCDGRST] //;
171 s/\015?\012//; # not sure if <DEFS> is in binmode and uses LF or CRLF.
172 # this strips both LF and CRLF.
175 close DEFS or die "nm failed";
179 # Gather definitions from the object files.
180 foreach my $obj (@objs ) {
181 open DEFS, "$nmPath -g $Directory/$obj |";
183 next if (! / [ABCDGRST] /);
184 s/^[^ ]* [ABCDGRST] //;
185 s/\015?\012//; # not sure if <DEFS> is in binmode and uses LF or CRLF.
186 # this strips both LF and CRLF.
189 close DEFS or die "nm failed";
192 # Generate one entry in the <dl> list. This generates the <dt> and <dd> elements
193 # for one library or object file. The <dt> provides the name of the library or
194 # object. The <dd> provides a list of the libraries/objects it depends on.
198 $lib_ns =~ s/(.*)\.[oa]/$1/;
201 if ($WHY) { print "\n"; }
203 print " <dt><b>$lib</b></dt><dd><ul>\n";
206 "$nmPath -u $Directory/$lib | sed -e 's/^[ 0]* U //' | sort | uniq |";
211 if (defined($libdefs{$_}) && $libdefs{$_} ne $lib) {
212 $DepLibs{$libdefs{$_}} = [] unless exists $DepLibs{$libdefs{$_}};
213 push(@{$DepLibs{$libdefs{$_}}}, $_);
214 } elsif (defined($objdefs{$_}) && $objdefs{$_} ne $lib) {
215 if ($PEROBJ && !$PEROBJINCL) {
216 # -perobjincl makes .a files depend on .o files they contain themselves
217 # default is don't depend on these.
218 next if defined $libobjs{$lib}{$objdefs{$_}};
221 $libroot =~ s/lib(.*).a/$1/;
222 if ($objdefs{$_} ne "$libroot.o") {
223 $DepLibs{$objdefs{$_}} = [] unless exists $DepLibs{$objdefs{$_}};
224 push(@{$DepLibs{$objdefs{$_}}}, $_);
228 close UNDEFS or die "nm failed";
229 unless(keys %DepLibs) {
231 open UNDEFS, "$nmPath -u $Directory/$lib |";
233 # to bypass non-working sed
234 if (' ' eq substr($_,0,2) and index($_,'U ')) {
235 $_ = substr($_,index($_,'U ')+2)
237 $_ = substr($_,index($_,' *U ')+5) if -1!=index($_,' *U ');
241 if (defined($libdefs{$_}) && $libdefs{$_} ne $lib) {
242 $DepLibs{$libdefs{$_}} = [] unless exists $DepLibs{$libdefs{$_}};
243 push(@{$DepLibs{$libdefs{$_}}}, $_);
244 } elsif (defined($objdefs{$_}) && $objdefs{$_} ne $lib) {
246 $libroot =~ s/lib(.*).a/$1/;
247 if ($objdefs{$_} ne "$libroot.o") {
248 $DepLibs{$objdefs{$_}} = [] unless exists $DepLibs{$objdefs{$_}};
249 push(@{$DepLibs{$objdefs{$_}}}, $_);
253 close UNDEFS or die "nm failed";
256 # include the .a's objects
257 for my $obj (keys %{$libobjs{$lib}}) {
258 $DepLibs{$obj} = ["<.a object>"] unless exists $DepLibs{$obj};
264 foreach my $obj (keys %DepLibs) {
265 foreach my $objdeps (keys %{$objdeps{$obj}}) {
266 next if defined $temp{$objdeps};
267 push(@{$temp{$objdeps}}, $obj);
275 for my $key (sort keys %DepLibs) {
280 my @syms = @{$DepLibs{$key}};
281 foreach my $sym (@syms) {
286 print " <li>$key</li>\n";
288 my $suffix = substr($key,length($key)-1,1);
289 $key =~ s/(.*)\.[oa]/$1/;
290 if ($suffix eq "a") {
291 if (!$FLAT) { print DOT "$lib_ns -> $key [ weight=0 ];\n" };
293 if (!$FLAT) { print DOT "$lib_ns -> $key [ weight=10];\n" };
301 print " </ul></dd>\n";
305 # Make sure we flush on write. This is slower but correct based on the way we
306 # write I/O in gen_one_entry.
309 # Print the definition list tag
313 open DOT, "| $DotPath -Tgif > libdeps.gif";
315 print DOT "digraph LibDeps {\n";
316 print DOT " size=\"40,15\"; \n";
317 print DOT " ratio=\"1.33333\"; \n";
318 print DOT " margin=\"0.25\"; \n";
319 print DOT " rankdir=\"LR\"; \n";
320 print DOT " mclimit=\"50.0\"; \n";
321 print DOT " ordering=\"out\"; \n";
322 print DOT " center=\"1\";\n";
323 print DOT "node [shape=\"box\",\n";
324 print DOT " color=\"#000088\",\n";
325 print DOT " fillcolor=\"#FFFACD\",\n";
326 print DOT " fontcolor=\"#3355BB\",\n";
327 print DOT " style=\"filled\",\n";
328 print DOT " fontname=\"sans\",\n";
329 print DOT " fontsize=\"24\"\n";
331 print DOT "edge [dir=\"forward\",style=\"solid\",color=\"#000088\"];\n";
334 # Print libraries first
335 foreach my $lib (@libs) {
340 foreach my $obj (keys %objdeps) {
343 foreach my $dep (keys %{$objdeps{$obj}}) {
354 open DOT, "| $DotPath -Tgif > objdeps.gif";
355 print DOT "digraph ObjDeps {\n";
356 print DOT " size=\"8,10\";\n";
357 print DOT " margin=\"0.25\";\n";
358 print DOT " rankdir=\"LR\";\n";
359 print DOT " mclimit=\"50.0\";\n";
360 print DOT " ordering=\"out\";\n";
361 print DOT " center=\"1\";\n";
362 print DOT "node [shape=\"box\",\n";
363 print DOT " color=\"#000088\",\n";
364 print DOT " fillcolor=\"#FFFACD\",\n";
365 print DOT " fontcolor=\"#3355BB\",\n";
366 print DOT " fontname=\"sans\",\n";
367 print DOT " style=\"filled\",\n";
368 print DOT " fontsize=\"24\"\n";
370 print DOT "edge [dir=\"forward\",style=\"solid\",color=\"#000088\"];\n";
373 # Print objects second
374 foreach my $obj (@objs) {
382 # Print end tag of definition list element