1 {- # -*- Mode: perl -*-
5 # A cache of objects for which a recipe has already been generated
8 # resolvedepends and reducedepends work in tandem to make sure
9 # there are no duplicate dependencies and that they are in the
10 # right order. This is especially used to sort the list of
11 # libraries that a build depends on.
12 sub extensionlesslib {
13 my @result = map { $_ =~ /(\.a)?$/; $` } @_;
14 return @result if wantarray;
19 my $extensionlessthing = extensionlesslib($thing);
20 my @listsofar = @_; # to check if we're looping
21 my @list = @{$unified_info{depends}->{$thing} //
22 $unified_info{depends}->{$extensionlessthing}};
25 foreach my $item (@list) {
26 my $extensionlessitem = extensionlesslib($item);
27 # It's time to break off when the dependency list starts looping
28 next if grep { extensionlesslib($_) eq $extensionlessitem } @listsofar;
29 push @newlist, $item, resolvedepends($item, @listsofar, $item);
39 my $item = shift @list;
40 my $extensionlessitem = extensionlesslib($item);
41 if (grep { $extensionlessitem eq extensionlesslib($_) } @list) {
42 if ($item ne $extensionlessitem) {
43 # If this instance of the library is explicitly static, we
44 # prefer that to any shared library name, since it must have
45 # been done on purpose.
46 $replace{$extensionlessitem} = $item;
52 map { $replace{$_} // $_; } @newlist;
55 # is_installed checks if a given file will be installed (i.e. they are
56 # not defined _NO_INST in build.info)
59 if (grep { $product eq $_ }
60 map { (@{$unified_info{install}->{$_}}) }
61 keys %{$unified_info{install}}) {
67 # dogenerate is responsible for producing all the recipes that build
68 # generated source files. It recurses in case a dependency is also a
69 # generated source file.
72 return "" if $cache{$src};
76 if ($unified_info{generate}->{$src}) {
77 die "$src is generated by Configure, should not appear in build file\n"
78 if ref $unified_info{generate}->{$src} eq "";
79 my $script = $unified_info{generate}->{$src}->[0];
80 $OUT .= generatesrc(src => $src,
81 generator => $unified_info{generate}->{$src},
82 generator_incs => $unified_info{includes}->{$script},
83 generator_deps => $unified_info{depends}->{$script},
84 deps => $unified_info{depends}->{$src},
85 incs => $unified_info{includes}->{$obj},
87 foreach (@{$unified_info{depends}->{$src}}) {
88 dogenerate($_, $obj, $bin, %opts);
94 # doobj is responsible for producing all the recipes that build
95 # object files as well as dependency files.
98 return "" if $cache{$obj};
101 if (@{$unified_info{sources}->{$obj}}) {
102 $OUT .= src2obj(obj => $obj,
104 srcs => $unified_info{sources}->{$obj},
105 deps => $unified_info{depends}->{$obj},
106 incs => $unified_info{includes}->{$obj},
108 foreach ((@{$unified_info{sources}->{$obj}},
109 @{$unified_info{depends}->{$obj}})) {
110 dogenerate($_, $obj, $bin, %opts);
116 # dolib is responsible for building libraries. It will call
117 # libobj2shlib is shared libraries are produced, and obj2lib in all
118 # cases. It also makes sure all object files for the library are
122 return "" if $cache{$lib};
123 unless ($disabled{shared} || $lib =~ /\.a$/) {
124 $OUT .= libobj2shlib(shlib => $unified_info{sharednames}->{$lib},
126 objs => [ @{$unified_info{shared_sources}->{$lib}},
127 @{$unified_info{sources}->{$lib}} ],
128 deps => [ reducedepends(resolvedepends($lib)) ],
129 installed => is_installed($lib));
130 foreach ((@{$unified_info{shared_sources}->{$lib}},
131 @{$unified_info{sources}->{$lib}})) {
132 # If this is somehow a compiled object, take care of it that way
133 # Otherwise, it might simply be generated
134 if (defined $unified_info{sources}->{$_}) {
135 doobj($_, $lib, intent => "lib", installed => is_installed($lib));
137 dogenerate($_, undef, undef, intent => "lib");
141 $OUT .= obj2lib(lib => $lib,
142 objs => [ @{$unified_info{sources}->{$lib}} ]);
143 foreach (@{$unified_info{sources}->{$lib}}) {
144 doobj($_, $lib, intent => "lib", installed => is_installed($lib));
149 # doengine is responsible for building engines. It will call
150 # obj2dso, and also makes sure all object files for the library
154 return "" if $cache{$lib};
155 $OUT .= obj2dso(lib => $lib,
156 objs => [ @{$unified_info{sources}->{$lib}},
157 @{$unified_info{shared_sources}->{$lib}} ],
158 deps => [ resolvedepends($lib) ],
159 installed => is_installed($lib));
160 foreach ((@{$unified_info{sources}->{$lib}},
161 @{$unified_info{shared_sources}->{$lib}})) {
162 doobj($_, $lib, intent => "dso", installed => is_installed($lib));
167 # dobin is responsible for building programs. It will call obj2bin,
168 # and also makes sure all object files for the library are built.
171 return "" if $cache{$bin};
172 my $deps = [ reducedepends(resolvedepends($bin)) ];
173 $OUT .= obj2bin(bin => $bin,
174 objs => [ @{$unified_info{sources}->{$bin}} ],
176 installed => is_installed($bin));
177 foreach (@{$unified_info{sources}->{$bin}}) {
178 doobj($_, $bin, intent => "bin", installed => is_installed($bin));
183 # dobin is responsible for building scripts from templates. It will
187 return "" if $cache{$script};
188 $OUT .= in2script(script => $script,
189 sources => $unified_info{sources}->{$script},
190 installed => is_installed($script));
196 return "" if !exists(&generatedir) or $cache{$dir};
197 $OUT .= generatedir(dir => $dir,
198 deps => $unified_info{dirinfo}->{$dir}->{deps},
199 %{$unified_info{dirinfo}->{$_}->{products}});
203 # Start with populating the cache with all the overrides
204 %cache = map { $_ => 1 } @{$unified_info{overrides}};
206 # Build mandatory generated headers
207 foreach (@{$unified_info{depends}->{""}}) { dogenerate($_); }
209 # Build all known libraries, engines, programs and scripts.
210 # Everything else will be handled as a consequence.
211 foreach (@{$unified_info{libraries}}) { dolib($_); }
212 foreach (@{$unified_info{engines}}) { doengine($_); }
213 foreach (@{$unified_info{programs}}) { dobin($_); }
214 foreach (@{$unified_info{scripts}}) { doscript($_); }
216 foreach (sort keys %{$unified_info{dirinfo}}) { dodir($_); }
218 # Finally, should there be any applicable BEGINRAW/ENDRAW sections,
219 # they are added here.
220 $OUT .= $_."\n" foreach @{$unified_info{rawlines}};