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llvm-mirror/utils/GenLibDeps.pl
Chandler Carruth 1879729aa9 Rename VMCore directory to IR.
Aside from moving the actual files, this patch only updates the build
system and the source file comments under lib/... that are relevant.

I'll be updating other docs and other files in smaller subsequnet
commits.

While I've tried to test this, but it is entirely possible that there
will still be some build system fallout.

Also, note that I've not changed the library name itself: libLLVMCore.a
is still the library name. I'd be interested in others' opinions about
whether we should rename this as well (I think we should, just not sure
what it might break)

llvm-svn: 171359
2013-01-02 09:10:48 +00:00

385 lines
11 KiB
Perl
Executable File

#!/usr/bin/perl -w
#
# Program: GenLibDeps.pl
#
# Synopsis: Generate HTML output that shows the dependencies between a set of
# libraries. The output of this script should periodically replace
# the similar content in the UsingLibraries.html document.
#
# Syntax: GenLibDeps.pl [-flat] <directory_with_libraries_in_it> [path_to_nm_binary]
#
use strict;
use warnings;
# Parse arguments...
my $FLAT = 0;
my $WHY = 0;
my $PEROBJ = 0;
my $PEROBJINCL = 0;
while (scalar(@ARGV) and ($_ = $ARGV[0], /^[-+]/)) {
shift;
last if /^--$/; # Stop processing arguments on --
# List command line options here...
if (/^-flat$/) { $FLAT = 1; next; }
if (/^-why/) { $WHY = 1; $FLAT = 1; next; }
if (/^-perobj$/) { $PEROBJ = 1; next; }
if (/^-perobjincl/) { $PEROBJINCL = 1; next;}
print "Unknown option: $_ : ignoring!\n";
}
# Give first option a name.
my $Directory = $ARGV[0];
if (!defined($Directory) || ! -d "$Directory") {
die "First argument must specify the directory containing LLVM libs\n";
}
my $nmPath = $ARGV[1];
# Find the "dot" program
my $DotPath="";
if (!$FLAT) {
chomp($DotPath = `which dot`);
die "Can't find 'dot'" if (! -x "$DotPath");
}
if (defined($ENV{NM})) {
chomp($nmPath=$ENV{NM});
}
if (!defined($nmPath) || $nmPath eq "") {
chomp($nmPath=`which nm`);
die "Can't find 'nm'" if (! -x "$nmPath");
}
my $ranlibPath;
if ($PEROBJ) {
$ranlibPath = $ARGV[2];
if (defined($ENV{RANLIB})) {
chomp($ranlibPath=$ENV{RANLIB});
}
if (!defined($ranlibPath) || $ranlibPath eq "") {
chomp($ranlibPath=`which ranlib`);
die "Can't find 'ranlib'" if (! -x "$ranlibPath");
}
}
# Open the directory and read its contents, sorting by name and differentiating
# by whether its a library (.a) or an object file (.o)
opendir DIR,$Directory;
my @files = readdir DIR;
closedir DIR;
my @libs = grep(/libLLVM.*\.(dylib|so|a)$/,sort(@files));
# Omit the all-of-llvm shared library.
@libs = grep(!/libLLVM-\d\.\d(svn)?\.(dylib|so)/, @libs);
my @objs = grep(/LLVM.*\.o$/,sort(@files));
# Declare the hashes we will use to keep track of the library and object file
# symbol definitions.
my %libdefs;
my %objdefs;
my %libobjs;
my %objdeps=();
# Gather library definitions at object file granularity (optional)
if ($PEROBJ) {
foreach my $lib (@libs ) {
`$ranlibPath $Directory/$lib`;
my $libpath = $lib;
$libpath =~ s/^libLLVM(.*)\.a/$1/;
$libpath =~ s/(.+)CodeGen$/Target\/$1/;
$libpath =~ s/(.+)AsmPrinter$/Target\/$1\/AsmPrinter/;
$libpath =~ s/(.+)AsmParser$/Target\/$1\/AsmParser/;
$libpath =~ s/(.+)Info$/Target\/$1\/TargetInfo/;
$libpath =~ s/(.+)Disassembler$/Target\/$1\/Disassembler/;
$libpath =~ s/SelectionDAG/CodeGen\/SelectionDAG/;
$libpath =~ s/^AsmPrinter/CodeGen\/AsmPrinter/;
$libpath =~ s/^BitReader/Bitcode\/Reader/;
$libpath =~ s/^BitWriter/Bitcode\/Writer/;
$libpath =~ s/^CppBackend/Target\/CppBackend/;
$libpath =~ s/^MSIL/Target\/MSIL/;
$libpath =~ s/^Core/IR/;
$libpath =~ s/^Instrumentation/Transforms\/Instrumentation/;
$libpath =~ s/^Interpreter/ExecutionEngine\/Interpreter/;
$libpath =~ s/^JIT/ExecutionEngine\/JIT/;
$libpath =~ s/^ScalarOpts/Transforms\/Scalar/;
$libpath =~ s/^TransformUtils/Transforms\/Utils/;
$libpath =~ s/^ipa/Analysis\/IPA/;
$libpath =~ s/^ipo/Transforms\/IPO/;
$libpath = "lib/".$libpath."/";
open DEFS, "$nmPath -sg $Directory/$lib|";
while (<DEFS>) {
chomp;
if (/^([^ ]*) in ([^ ]*)/) {
my $objfile = $libpath.$2;
$objdefs{$1} = $objfile;
$objdeps{$objfile} = {};
$libobjs{$lib}{$objfile}=1;
# my $p = "../llvm/".$objfile;
# $p =~ s/Support\/reg(.*).o/Support\/reg$1.c/;
# $p =~ s/.o$/.cpp/;
# unless (-e $p) {
# die "$p\n"
# }
}
}
close DEFS or die "nm failed";
}
foreach my $lib (@libs ) {
my $libpath = $lib;
$libpath =~ s/^libLLVM(.*)\.a/$1/;
$libpath =~ s/(.+)CodeGen$/Target\/$1/;
$libpath =~ s/(.+)AsmPrinter$/Target\/$1\/AsmPrinter/;
$libpath =~ s/(.+)AsmParser$/Target\/$1\/AsmParser/;
$libpath =~ s/(.+)Info$/Target\/$1\/TargetInfo/;
$libpath =~ s/(.+)Disassembler$/Target\/$1\/Disassembler/;
$libpath =~ s/SelectionDAG/CodeGen\/SelectionDAG/;
$libpath =~ s/^AsmPrinter/CodeGen\/AsmPrinter/;
$libpath =~ s/^BitReader/Bitcode\/Reader/;
$libpath =~ s/^BitWriter/Bitcode\/Writer/;
$libpath =~ s/^CppBackend/Target\/CppBackend/;
$libpath =~ s/^MSIL/Target\/MSIL/;
$libpath =~ s/^Core/VMCore/;
$libpath =~ s/^Instrumentation/Transforms\/Instrumentation/;
$libpath =~ s/^Interpreter/ExecutionEngine\/Interpreter/;
$libpath =~ s/^JIT/ExecutionEngine\/JIT/;
$libpath =~ s/^ScalarOpts/Transforms\/Scalar/;
$libpath =~ s/^TransformUtils/Transforms\/Utils/;
$libpath =~ s/^ipa/Analysis\/IPA/;
$libpath =~ s/^ipo/Transforms\/IPO/;
$libpath = "lib/".$libpath."/";
open UDEFS, "$nmPath -Aup $Directory/$lib|";
while (<UDEFS>) {
chomp;
if (/:([^:]+):/) {
my $obj = $libpath.$1;
s/[^ ]+: *U //;
if (defined($objdefs{$_})) {
$objdeps{$obj}{$objdefs{$_}}=1;
}
}
}
close UDEFS or die "nm failed"
}
} else {
# Gather definitions from the libraries
foreach my $lib (@libs ) {
open DEFS, "$nmPath -g $Directory/$lib|";
while (<DEFS>) {
next if (! / [ABCDGRST] /);
s/^[^ ]* [ABCDGRST] //;
s/\015?\012//; # not sure if <DEFS> is in binmode and uses LF or CRLF.
# this strips both LF and CRLF.
$libdefs{$_} = $lib;
}
close DEFS or die "nm failed";
}
}
# Gather definitions from the object files.
foreach my $obj (@objs ) {
open DEFS, "$nmPath -g $Directory/$obj |";
while (<DEFS>) {
next if (! / [ABCDGRST] /);
s/^[^ ]* [ABCDGRST] //;
s/\015?\012//; # not sure if <DEFS> is in binmode and uses LF or CRLF.
# this strips both LF and CRLF.
$objdefs{$_} = $obj;
}
close DEFS or die "nm failed";
}
# Generate one entry in the <dl> list. This generates the <dt> and <dd> elements
# for one library or object file. The <dt> provides the name of the library or
# object. The <dd> provides a list of the libraries/objects it depends on.
sub gen_one_entry {
my $lib = $_[0];
my $lib_ns = $lib;
$lib_ns =~ s/(.*)\.[oa]/$1/;
if ($FLAT) {
print "$lib:";
if ($WHY) { print "\n"; }
} else {
print " <dt><b>$lib</b></dt><dd><ul>\n";
}
open UNDEFS,
"$nmPath -u $Directory/$lib | sed -e 's/^[ 0]* U //' | sort | uniq |";
my %DepLibs;
while (<UNDEFS>) {
chomp;
my $lib_printed = 0;
if (defined($libdefs{$_}) && $libdefs{$_} ne $lib) {
$DepLibs{$libdefs{$_}} = [] unless exists $DepLibs{$libdefs{$_}};
push(@{$DepLibs{$libdefs{$_}}}, $_);
} elsif (defined($objdefs{$_}) && $objdefs{$_} ne $lib) {
if ($PEROBJ && !$PEROBJINCL) {
# -perobjincl makes .a files depend on .o files they contain themselves
# default is don't depend on these.
next if defined $libobjs{$lib}{$objdefs{$_}};
}
my $libroot = $lib;
$libroot =~ s/lib(.*).a/$1/;
if ($objdefs{$_} ne "$libroot.o") {
$DepLibs{$objdefs{$_}} = [] unless exists $DepLibs{$objdefs{$_}};
push(@{$DepLibs{$objdefs{$_}}}, $_);
}
}
}
close UNDEFS or die "nm failed";
unless(keys %DepLibs) {
# above failed
open UNDEFS, "$nmPath -u $Directory/$lib |";
while (<UNDEFS>) {
# to bypass non-working sed
if (' ' eq substr($_,0,2) and index($_,'U ')) {
$_ = substr($_,index($_,'U ')+2)
};
$_ = substr($_,index($_,' *U ')+5) if -1!=index($_,' *U ');
chomp;
my $lib_printed = 0;
if (defined($libdefs{$_}) && $libdefs{$_} ne $lib) {
$DepLibs{$libdefs{$_}} = [] unless exists $DepLibs{$libdefs{$_}};
push(@{$DepLibs{$libdefs{$_}}}, $_);
} elsif (defined($objdefs{$_}) && $objdefs{$_} ne $lib) {
my $libroot = $lib;
$libroot =~ s/lib(.*).a/$1/;
if ($objdefs{$_} ne "$libroot.o") {
$DepLibs{$objdefs{$_}} = [] unless exists $DepLibs{$objdefs{$_}};
push(@{$DepLibs{$objdefs{$_}}}, $_);
}
}
}
close UNDEFS or die "nm failed";
}
if ($PEROBJINCL) {
# include the .a's objects
for my $obj (keys %{$libobjs{$lib}}) {
$DepLibs{$obj} = ["<.a object>"] unless exists $DepLibs{$obj};
}
my $madechange = 1;
while($madechange) {
$madechange = 0;
my %temp = %DepLibs;
foreach my $obj (keys %DepLibs) {
foreach my $objdeps (keys %{$objdeps{$obj}}) {
next if defined $temp{$objdeps};
push(@{$temp{$objdeps}}, $obj);
$madechange = 1;
}
}
%DepLibs = %temp;
}
}
for my $key (sort keys %DepLibs) {
if ($FLAT) {
print " $key";
if ($WHY) {
print "\n";
my @syms = @{$DepLibs{$key}};
foreach my $sym (@syms) {
print " $sym\n";
}
}
} else {
print " <li>$key</li>\n";
}
my $suffix = substr($key,length($key)-1,1);
$key =~ s/(.*)\.[oa]/$1/;
if ($suffix eq "a") {
if (!$FLAT) { print DOT "$lib_ns -> $key [ weight=0 ];\n" };
} else {
if (!$FLAT) { print DOT "$lib_ns -> $key [ weight=10];\n" };
}
}
if ($FLAT) {
if (!$WHY) {
print "\n";
}
} else {
print " </ul></dd>\n";
}
}
# Make sure we flush on write. This is slower but correct based on the way we
# write I/O in gen_one_entry.
$| = 1;
# Print the definition list tag
if (!$FLAT) {
print "<dl>\n";
open DOT, "| $DotPath -Tgif > libdeps.gif";
print DOT "digraph LibDeps {\n";
print DOT " size=\"40,15\"; \n";
print DOT " ratio=\"1.33333\"; \n";
print DOT " margin=\"0.25\"; \n";
print DOT " rankdir=\"LR\"; \n";
print DOT " mclimit=\"50.0\"; \n";
print DOT " ordering=\"out\"; \n";
print DOT " center=\"1\";\n";
print DOT "node [shape=\"box\",\n";
print DOT " color=\"#000088\",\n";
print DOT " fillcolor=\"#FFFACD\",\n";
print DOT " fontcolor=\"#3355BB\",\n";
print DOT " style=\"filled\",\n";
print DOT " fontname=\"sans\",\n";
print DOT " fontsize=\"24\"\n";
print DOT "];\n";
print DOT "edge [dir=\"forward\",style=\"solid\",color=\"#000088\"];\n";
}
# Print libraries first
foreach my $lib (@libs) {
gen_one_entry($lib);
}
if ($PEROBJ) {
foreach my $obj (keys %objdeps) {
print "$obj:";
if (!$PEROBJINCL) {
foreach my $dep (keys %{$objdeps{$obj}}) {
print " $dep";
}
}
print "\n";
}
}
if (!$FLAT) {
print DOT "}\n";
close DOT;
open DOT, "| $DotPath -Tgif > objdeps.gif";
print DOT "digraph ObjDeps {\n";
print DOT " size=\"8,10\";\n";
print DOT " margin=\"0.25\";\n";
print DOT " rankdir=\"LR\";\n";
print DOT " mclimit=\"50.0\";\n";
print DOT " ordering=\"out\";\n";
print DOT " center=\"1\";\n";
print DOT "node [shape=\"box\",\n";
print DOT " color=\"#000088\",\n";
print DOT " fillcolor=\"#FFFACD\",\n";
print DOT " fontcolor=\"#3355BB\",\n";
print DOT " fontname=\"sans\",\n";
print DOT " style=\"filled\",\n";
print DOT " fontsize=\"24\"\n";
print DOT "];\n";
print DOT "edge [dir=\"forward\",style=\"solid\",color=\"#000088\"];\n";
}
# Print objects second
foreach my $obj (@objs) {
gen_one_entry($obj);
}
if (!$FLAT) {
print DOT "}\n";
close DOT;
# Print end tag of definition list element
print "</dl>\n";
}