1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
|
{- # -*- 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 extensionlesslib {
my @result = map { $_ =~ /(\.a)?$/; $` } @_;
return @result if wantarray;
return $result[0];
}
sub resolvedepends {
my $thing = shift;
my $extensionlessthing = extensionlesslib($thing);
my @listsofar = @_; # to check if we're looping
my @list = @{$unified_info{depends}->{$thing} //
$unified_info{depends}->{$extensionlessthing}};
my @newlist = ();
if (scalar @list) {
foreach my $item (@list) {
my $extensionlessitem = extensionlesslib($item);
# It's time to break off when the dependency list starts looping
next if grep { extensionlesslib($_) eq $extensionlessitem } @listsofar;
push @newlist, $item, resolvedepends($item, @listsofar, $item);
}
}
@newlist;
}
sub reducedepends {
my @list = @_;
my @newlist = ();
my %replace = ();
while (@list) {
my $item = shift @list;
my $extensionlessitem = extensionlesslib($item);
if (grep { $extensionlessitem eq extensionlesslib($_) } @list) {
if ($item ne $extensionlessitem) {
# If this instance of the library is explicitly static, we
# prefer that to any shared library name, since it must have
# been done on purpose.
$replace{$extensionlessitem} = $item;
}
} else {
push @newlist, $item;
}
}
map { $replace{$_} // $_; } @newlist;
}
# is_installed checks if a given file will be installed (i.e. they are
# not defined _NO_INST in build.info)
sub is_installed {
my $product = shift;
if (grep { $product eq $_ }
map { (@{$unified_info{install}->{$_}}) }
keys %{$unified_info{install}}) {
return 1;
}
return 0;
}
# 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 => [ @{$unified_info{includes}->{$obj}},
@{$unified_info{includes}->{$bin}} ],
%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 $bin = shift;
my %opts = @_;
if (@{$unified_info{sources}->{$obj}}) {
$OUT .= src2obj(obj => $obj,
product => $bin,
srcs => $unified_info{sources}->{$obj},
deps => $unified_info{depends}->{$obj},
incs => [ @{$unified_info{includes}->{$obj}},
@{$unified_info{includes}->{$bin}} ],
%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
# obj2shlib 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} || $lib =~ /\.a$/) {
my $obj2shlib = defined &obj2shlib ? \&obj2shlib : \&libobj2shlib;
$OUT .= $obj2shlib->(shlib => $unified_info{sharednames}->{$lib},
lib => $lib,
objs => $unified_info{shared_sources}->{$lib},
deps => [ reducedepends(resolvedepends($lib)) ],
installed => is_installed($lib));
foreach ((@{$unified_info{shared_sources}->{$lib}},
@{$unified_info{sources}->{$lib}})) {
# If this is somehow a compiled object, take care of it that way
# Otherwise, it might simply be generated
if (defined $unified_info{sources}->{$_}) {
doobj($_, $lib, intent => "shlib", installed => is_installed($lib));
} else {
dogenerate($_, undef, undef, intent => "lib");
}
}
}
$OUT .= obj2lib(lib => $lib,
objs => [ @{$unified_info{sources}->{$lib}} ]);
foreach (@{$unified_info{sources}->{$lib}}) {
doobj($_, $lib, intent => "lib", installed => is_installed($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 => $unified_info{shared_sources}->{$lib},
deps => [ resolvedepends($lib) ],
installed => is_installed($lib));
foreach (@{$unified_info{shared_sources}->{$lib}}) {
doobj($_, $lib, intent => "dso", installed => is_installed($lib));
}
$cache{$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 => $bin,
objs => [ @{$unified_info{sources}->{$bin}} ],
deps => $deps,
installed => is_installed($bin));
foreach (@{$unified_info{sources}->{$bin}}) {
doobj($_, $bin, intent => "bin", installed => is_installed($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},
installed => is_installed($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}};
-}
|