1 {- # -*- Mode: perl -*-
3 # A cache of objects for which a recipe has already been generated
6 # resolvedepends and reducedepends work in tandem to make sure
7 # there are no duplicate dependencies and that they are in the
8 # right order. This is especially used to sort the list of
9 # libraries that a build depends on.
12 my @listsofar = @_; # to check if we're looping
13 my @list = @{$unified_info{depends}->{$thing}};
16 foreach my $item (@list) {
17 # It's time to break off when the dependency list starts looping
18 next if grep { $_ eq $item } @listsofar;
19 push @newlist, $item, resolvedepends($item, @listsofar, $item);
28 my $item = shift @list;
30 unless grep { $item eq $_ } @list;
37 return "" if $cache{$src};
39 if ($unified_info{generate}->{$src}) {
40 $OUT .= generatesrc(src => $src,
41 generator => $unified_info{generate}->{$src},
42 deps => $unified_info{depends}->{$src},
44 foreach (@{$unified_info{depends}->{$src}}) {
45 dogenerate($_, %opts);
51 # doobj is responsible for producing all the recipes that build
52 # object files as well as dependency files.
55 return "" if $cache{$obj};
56 (my $obj_no_o = $obj) =~ s|\.o$||;
59 if (@{$unified_info{sources}->{$obj}}) {
60 $OUT .= src2obj(obj => $obj_no_o,
61 srcs => $unified_info{sources}->{$obj},
62 deps => $unified_info{depends}->{$obj},
63 incs => [ @{$unified_info{includes}->{$bin}},
64 @{$unified_info{includes}->{$obj}} ],
66 foreach ((@{$unified_info{sources}->{$obj}},
67 @{$unified_info{depends}->{$obj}})) {
68 dogenerate($_, %opts);
74 # dolib is responsible for building libraries. It will call
75 # libobj2shlib is shared libraries are produced, and obj2lib in all
76 # cases. It also makes sure all object files for the library are
80 return "" if $cache{$lib};
81 unless ($disabled{shared}) {
83 $unified_info{ordinals}->{$lib}
84 ? (ordinals => $unified_info{ordinals}->{$lib}) : ();
85 $OUT .= libobj2shlib(shlib => $unified_info{sharednames}->{$lib},
87 objs => [ map { (my $x = $_) =~ s|\.o$||; $x }
88 @{$unified_info{sources}->{$lib}} ],
89 deps => [ reducedepends(resolvedepends($lib)) ],
92 $OUT .= obj2lib(lib => $lib,
93 objs => [ map { (my $x = $_) =~ s|\.o$||; $x }
94 @{$unified_info{sources}->{$lib}} ]);
95 map { doobj($_, $lib, intent => "lib") } @{$unified_info{sources}->{$lib}};
99 # doengine is responsible for building engines. It will call
100 # obj2dso, and also makes sure all object files for the library
104 return "" if $cache{$lib};
105 $OUT .= obj2dso(lib => $lib,
106 objs => [ map { (my $x = $_) =~ s|\.o$||; $x }
107 @{$unified_info{sources}->{$lib}} ],
108 deps => [ resolvedepends($lib) ]);
109 map { doobj($_, $lib, intent => "dso") } @{$unified_info{sources}->{$lib}};
113 # dobin is responsible for building programs. It will call obj2bin,
114 # and also makes sure all object files for the library are built.
117 return "" if $cache{$bin};
118 my $deps = [ reducedepends(resolvedepends($bin)) ];
119 $OUT .= obj2bin(bin => $bin,
120 objs => [ map { (my $x = $_) =~ s|\.o$||; $x }
121 @{$unified_info{sources}->{$bin}} ],
123 map { doobj($_, $bin, intent => "bin") } @{$unified_info{sources}->{$bin}};
127 # dobin is responsible for building scripts from templates. It will
131 return "" if $cache{$script};
132 $OUT .= in2script(script => $script,
133 sources => $unified_info{sources}->{$script});
137 # Start with populating the cache with all the overrides
138 %cache = map { $_ => 1 } @{$unified_info{overrides}};
140 # Build all known libraries, engines, programs and scripts.
141 # Everything else will be handled as a consequence.
142 map { dolib($_) } @{$unified_info{libraries}};
143 map { doengine($_) } @{$unified_info{engines}};
144 map { dobin($_) } @{$unified_info{programs}};
145 map { doscript($_) } @{$unified_info{scripts}};
147 # Finally, should there be any applicable BEGINRAW/ENDRAW sections,
148 # they are added here.
149 $OUT .= $_."\n" foreach(@{$unified_info{rawlines}});