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 explicitely 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 => [ @{$unified_info{includes}->{$bin}},
86 @{$unified_info{includes}->{$obj}} ],
88 foreach (@{$unified_info{depends}->{$src}}) {
89 dogenerate($_, $obj, $bin, %opts);
95 # doobj is responsible for producing all the recipes that build
96 # object files as well as dependency files.
99 return "" if $cache{$obj};
100 (my $obj_no_o = $obj) =~ s|\.o$||;
103 if (@{$unified_info{sources}->{$obj}}) {
104 $OUT .= src2obj(obj => $obj_no_o,
106 srcs => $unified_info{sources}->{$obj},
107 deps => $unified_info{depends}->{$obj},
108 incs => [ @{$unified_info{includes}->{$bin}},
109 @{$unified_info{includes}->{$obj}} ],
111 foreach ((@{$unified_info{sources}->{$obj}},
112 @{$unified_info{depends}->{$obj}})) {
113 dogenerate($_, $obj, $bin, %opts);
119 # dolib is responsible for building libraries. It will call
120 # libobj2shlib is shared libraries are produced, and obj2lib in all
121 # cases. It also makes sure all object files for the library are
125 return "" if $cache{$lib};
126 unless ($disabled{shared} || $lib =~ /\.a$/) {
128 $unified_info{ordinals}->{$lib}
129 ? (ordinals => $unified_info{ordinals}->{$lib}) : ();
130 $OUT .= libobj2shlib(shlib => $unified_info{sharednames}->{$lib},
132 objs => [ map { (my $x = $_) =~ s|\.o$||; $x }
133 (@{$unified_info{sources}->{$lib}},
134 @{$unified_info{shared_sources}->{$lib}}) ],
135 deps => [ reducedepends(resolvedepends($lib)) ],
136 installed => is_installed($lib),
138 foreach (@{$unified_info{shared_sources}->{$lib}}) {
139 doobj($_, $lib, intent => "lib", installed => is_installed($lib));
142 $OUT .= obj2lib(lib => $lib,
143 objs => [ map { (my $x = $_) =~ s|\.o$||; $x }
144 @{$unified_info{sources}->{$lib}} ]);
145 foreach (@{$unified_info{sources}->{$lib}}) {
146 doobj($_, $lib, intent => "lib", installed => is_installed($lib));
151 # doengine is responsible for building engines. It will call
152 # obj2dso, and also makes sure all object files for the library
156 return "" if $cache{$lib};
157 $OUT .= obj2dso(lib => $lib,
158 objs => [ map { (my $x = $_) =~ s|\.o$||; $x }
159 (@{$unified_info{sources}->{$lib}},
160 @{$unified_info{shared_sources}->{$lib}}) ],
161 deps => [ resolvedepends($lib) ],
162 installed => is_installed($lib));
163 foreach ((@{$unified_info{sources}->{$lib}},
164 @{$unified_info{shared_sources}->{$lib}})) {
165 doobj($_, $lib, intent => "dso", installed => is_installed($lib));
170 # dobin is responsible for building programs. It will call obj2bin,
171 # and also makes sure all object files for the library are built.
174 return "" if $cache{$bin};
175 my $deps = [ reducedepends(resolvedepends($bin)) ];
176 $OUT .= obj2bin(bin => $bin,
177 objs => [ map { (my $x = $_) =~ s|\.o$||; $x }
178 @{$unified_info{sources}->{$bin}} ],
180 installed => is_installed($bin));
181 foreach (@{$unified_info{sources}->{$bin}}) {
182 doobj($_, $bin, intent => "bin", installed => is_installed($bin));
187 # dobin is responsible for building scripts from templates. It will
191 return "" if $cache{$script};
192 $OUT .= in2script(script => $script,
193 sources => $unified_info{sources}->{$script},
194 installed => is_installed($script));
200 return "" if !exists(&generatedir) or $cache{$dir};
201 $OUT .= generatedir(dir => $dir,
202 deps => $unified_info{dirinfo}->{$dir}->{deps},
203 %{$unified_info{dirinfo}->{$_}->{products}});
207 # Start with populating the cache with all the overrides
208 %cache = map { $_ => 1 } @{$unified_info{overrides}};
210 # For convenience collect information regarding directories where
211 # files are generated, those generated files and the end product
212 # they end up in where applicable. Then, add build rules for those
214 if (exists &generatedir) {
215 my %loopinfo = ( "dso" => [ @{$unified_info{engines}} ],
216 "lib" => [ @{$unified_info{libraries}} ],
217 "bin" => [ @{$unified_info{programs}} ],
218 "script" => [ @{$unified_info{scripts}} ] );
219 foreach my $type (keys %loopinfo) {
220 foreach my $product (@{$loopinfo{$type}}) {
222 my $pd = dirname($product);
224 # We already have a "test" target, and the current directory
225 # is just silly to make a target for
226 $dirs{$pd} = 1 unless $pd eq "test" || $pd eq ".";
228 foreach (@{$unified_info{sources}->{$product}}) {
231 # We don't want to create targets for source directories
232 # when building out of source
233 next if ($config{sourcedir} ne $config{builddir}
234 && $d =~ m|^\Q$config{sourcedir}\E|);
235 # We already have a "test" target, and the current directory
236 # is just silly to make a target for
237 next if $d eq "test" || $d eq ".";
240 push @{$unified_info{dirinfo}->{$d}->{deps}}, $_
243 foreach (keys %dirs) {
244 push @{$unified_info{dirinfo}->{$_}->{products}->{$type}},
251 # Build mandatory generated headers
252 foreach (@{$unified_info{depends}->{""}}) { dogenerate($_); }
254 # Build all known libraries, engines, programs and scripts.
255 # Everything else will be handled as a consequence.
256 foreach (@{$unified_info{libraries}}) { dolib($_); }
257 foreach (@{$unified_info{engines}}) { doengine($_); }
258 foreach (@{$unified_info{programs}}) { dobin($_); }
259 foreach (@{$unified_info{scripts}}) { doscript($_); }
261 foreach (sort keys %{$unified_info{dirinfo}}) { dodir($_); }
263 # Finally, should there be any applicable BEGINRAW/ENDRAW sections,
264 # they are added here.
265 $OUT .= $_."\n" foreach @{$unified_info{rawlines}};