--- /dev/null
+{- # -*- Mode: perl -*-
+
+ use File::Basename;
+
+ # A cache of objects for which a recipe has already been generated
+ my %cache;
+
+ # resolvedepends and reducedepends work in tandem to make sure
+ # there are no duplicate dependencies and that they are in the
+ # right order. This is especially used to sort the list of
+ # libraries that a build depends on.
+ sub resolvedepends {
+ my $thing = shift;
+ my @listsofar = @_; # to check if we're looping
+ my @list = @{$unified_info{depends}->{$thing}};
+ my @newlist = ();
+ if (scalar @list) {
+ foreach my $item (@list) {
+ # It's time to break off when the dependency list starts looping
+ next if grep { $_ eq $item } @listsofar;
+ push @newlist, $item, resolvedepends($item, @listsofar, $item);
+ }
+ }
+ @newlist;
+ }
+ sub reducedepends {
+ my @list = @_;
+ my @newlist = ();
+ while (@list) {
+ my $item = shift @list;
+ push @newlist, $item
+ unless grep { $item eq $_ } @list;
+ }
+ @newlist;
+ }
+
+ # dogenerate is responsible for producing all the recipes that build
+ # generated source files. It recurses in case a dependency is also a
+ # generated source file.
+ sub dogenerate {
+ my $src = shift;
+ return "" if $cache{$src};
+ my $obj = shift;
+ my $bin = shift;
+ my %opts = @_;
+ if ($unified_info{generate}->{$src}) {
+ die "$src is generated by Configure, should not appear in build file\n"
+ if ref $unified_info{generate}->{$src} eq "";
+ my $script = $unified_info{generate}->{$src}->[0];
+ $OUT .= generatesrc(src => $src,
+ generator => $unified_info{generate}->{$src},
+ generator_incs => $unified_info{includes}->{$script},
+ generator_deps => $unified_info{depends}->{$script},
+ deps => $unified_info{depends}->{$src},
+ incs => [ @{$unified_info{includes}->{$bin}},
+ @{$unified_info{includes}->{$obj}} ],
+ %opts);
+ foreach (@{$unified_info{depends}->{$src}}) {
+ dogenerate($_, $obj, $bin, %opts);
+ }
+ }
+ $cache{$src} = 1;
+ }
+
+ # doobj is responsible for producing all the recipes that build
+ # object files as well as dependency files.
+ sub doobj {
+ my $obj = shift;
+ return "" if $cache{$obj};
+ (my $obj_no_o = $obj) =~ s|\.o$||;
+ my $bin = shift;
+ my %opts = @_;
+ if (@{$unified_info{sources}->{$obj}}) {
+ $OUT .= src2obj(obj => $obj_no_o,
+ srcs => $unified_info{sources}->{$obj},
+ deps => $unified_info{depends}->{$obj},
+ incs => [ @{$unified_info{includes}->{$bin}},
+ @{$unified_info{includes}->{$obj}} ],
+ %opts);
+ foreach ((@{$unified_info{sources}->{$obj}},
+ @{$unified_info{depends}->{$obj}})) {
+ dogenerate($_, $obj, $bin, %opts);
+ }
+ }
+ $cache{$obj} = 1;
+ }
+
+ # dolib is responsible for building libraries. It will call
+ # libobj2shlib is shared libraries are produced, and obj2lib in all
+ # cases. It also makes sure all object files for the library are
+ # built.
+ sub dolib {
+ my $lib = shift;
+ return "" if $cache{$lib};
+ unless ($disabled{shared}) {
+ my %ordinals =
+ $unified_info{ordinals}->{$lib}
+ ? (ordinals => $unified_info{ordinals}->{$lib}) : ();
+ $OUT .= libobj2shlib(shlib => $unified_info{sharednames}->{$lib},
+ lib => $lib,
+ objs => [ map { (my $x = $_) =~ s|\.o$||; $x }
+ (@{$unified_info{sources}->{$lib}},
+ @{$unified_info{shared_sources}->{$lib}}) ],
+ deps => [ reducedepends(resolvedepends($lib)) ],
+ %ordinals);
+ foreach (@{$unified_info{shared_sources}->{$lib}}) {
+ doobj($_, $lib, intent => "lib");
+ }
+ }
+ $OUT .= obj2lib(lib => $lib,
+ objs => [ map { (my $x = $_) =~ s|\.o$||; $x }
+ @{$unified_info{sources}->{$lib}} ]);
+ foreach (@{$unified_info{sources}->{$lib}}) {
+ doobj($_, $lib, intent => "lib");
+ }
+ $cache{$lib} = 1;
+ }
+
+ # doengine is responsible for building engines. It will call
+ # obj2dso, and also makes sure all object files for the library
+ # are built.
+ sub doengine {
+ my $lib = shift;
+ return "" if $cache{$lib};
+ $OUT .= obj2dso(lib => $lib,
+ objs => [ map { (my $x = $_) =~ s|\.o$||; $x }
+ (@{$unified_info{sources}->{$lib}},
+ @{$unified_info{shared_sources}->{$lib}}) ],
+ deps => [ resolvedepends($lib) ]);
+ foreach ((@{$unified_info{sources}->{$lib}},
+ @{$unified_info{shared_sources}->{$lib}})) {
+ doobj($_, $lib, intent => "dso");
+ }
+ $cache{$lib} = 1;
+ }
+
+ # dobin is responsible for building programs. It will call obj2bin,
+ # and also makes sure all object files for the library are built.
+ sub dobin {
+ my $bin = shift;
+ return "" if $cache{$bin};
+ my $deps = [ reducedepends(resolvedepends($bin)) ];
+ $OUT .= obj2bin(bin => $bin,
+ objs => [ map { (my $x = $_) =~ s|\.o$||; $x }
+ @{$unified_info{sources}->{$bin}} ],
+ deps => $deps);
+ foreach (@{$unified_info{sources}->{$bin}}) {
+ doobj($_, $bin, intent => "bin");
+ }
+ $cache{$bin} = 1;
+ }
+
+ # dobin is responsible for building scripts from templates. It will
+ # call in2script.
+ sub doscript {
+ my $script = shift;
+ return "" if $cache{$script};
+ $OUT .= in2script(script => $script,
+ sources => $unified_info{sources}->{$script});
+ $cache{$script} = 1;
+ }
+
+ sub dodir {
+ my $dir = shift;
+ return "" if !exists(&generatedir) or $cache{$dir};
+ $OUT .= generatedir(dir => $dir,
+ deps => $unified_info{dirinfo}->{$dir}->{deps},
+ %{$unified_info{dirinfo}->{$_}->{products}});
+ $cache{$dir} = 1;
+ }
+
+ # Start with populating the cache with all the overrides
+ %cache = map { $_ => 1 } @{$unified_info{overrides}};
+
+ # For convenience collect information regarding directories where
+ # files are generated, those generated files and the end product
+ # they end up in where applicable. Then, add build rules for those
+ # directories
+ if (exists &generatedir) {
+ my %loopinfo = ( "dso" => [ @{$unified_info{engines}} ],
+ "lib" => [ @{$unified_info{libraries}} ],
+ "bin" => [ @{$unified_info{programs}} ],
+ "script" => [ @{$unified_info{scripts}} ] );
+ foreach my $type (keys %loopinfo) {
+ foreach my $product (@{$loopinfo{$type}}) {
+ my %dirs = ();
+ my $pd = dirname($product);
+
+ # We already have a "test" target, and the current directory
+ # is just silly to make a target for
+ $dirs{$pd} = 1 unless $pd eq "test" || $pd eq ".";
+
+ foreach (@{$unified_info{sources}->{$product}}) {
+ my $d = dirname($_);
+
+ # We don't want to create targets for source directories
+ # when building out of source
+ next if ($config{sourcedir} ne $config{builddir}
+ && $d =~ m|^\Q$config{sourcedir}\E|);
+ # We already have a "test" target, and the current directory
+ # is just silly to make a target for
+ next if $d eq "test" || $d eq ".";
+
+ $dirs{$d} = 1;
+ push @{$unified_info{dirinfo}->{$d}->{deps}}, $_
+ if $d ne $pd;
+ }
+ foreach (keys %dirs) {
+ push @{$unified_info{dirinfo}->{$_}->{products}->{$type}},
+ $product;
+ }
+ }
+ }
+ }
+
+ # Build mandatory generated headers
+ foreach (@{$unified_info{depends}->{""}}) { dogenerate($_); }
+
+ # Build all known libraries, engines, programs and scripts.
+ # Everything else will be handled as a consequence.
+ foreach (@{$unified_info{libraries}}) { dolib($_); }
+ foreach (@{$unified_info{engines}}) { doengine($_); }
+ foreach (@{$unified_info{programs}}) { dobin($_); }
+ foreach (@{$unified_info{scripts}}) { doscript($_); }
+
+ foreach (sort keys %{$unified_info{dirinfo}}) { dodir($_); }
+
+ # Finally, should there be any applicable BEGINRAW/ENDRAW sections,
+ # they are added here.
+ $OUT .= $_."\n" foreach @{$unified_info{rawlines}};
+-}
projects / cassiopeia.git / blobdiff