{- # -*- Mode: perl -*-
- # A cache of objects for which a recipe has already been generated
- my %cache;
+ use File::Basename;
+
+ my $debug_resolvedepends = $ENV{BUILDFILE_DEBUG_DEPENDS};
+ my $debug_rules = $ENV{BUILDFILE_DEBUG_RULES};
+
+ # A cache of objects for which a recipe has already been generated
+ my %cache;
+
+ # collectdepends, expanddepends and reducedepends work together to make
+ # sure there are no duplicate or weak dependencies and that they are in
+ # the right order. This is 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];
+ }
+
+ # collectdepends dives into the tree of dependencies and returns
+ # a list of all the non-weak ones.
+ sub collectdepends {
+ return () unless @_;
- # 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 $extensionlessthing = extensionlesslib($thing);
my @listsofar = @_; # to check if we're looping
- my @list = @{$unified_info{depends}->{$thing}};
+ my @list = @{$unified_info{depends}->{$thing} //
+ $unified_info{depends}->{$extensionlessthing}};
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);
- }
+
+ print STDERR "DEBUG[collectdepends] $thing > ", join(' ', @listsofar), "\n"
+ if $debug_resolvedepends;
+ 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;
+ # Don't add anything here if the dependency is weak
+ next if defined $unified_info{attributes}->{depends}->{$thing}->{$item}->{'weak'};
+ my @resolved = collectdepends($item, @listsofar, $item);
+ push @newlist, $item, @resolved;
}
+ print STDERR "DEBUG[collectdepends] $thing < ", join(' ', @newlist), "\n"
+ if $debug_resolvedepends;
@newlist;
}
+
+ # expanddepends goes through a list of stuff, checks if they have any
+ # dependencies, and adds them at the end of the current position if
+ # they aren't already present later on.
+ sub expanddepends {
+ my @after = ( @_ );
+ print STDERR "DEBUG[expanddepends]> ", join(' ', @after), "\n"
+ if $debug_resolvedepends;
+ my @before = ();
+ while (@after) {
+ my $item = shift @after;
+ print STDERR "DEBUG[expanddepends]\\ ", join(' ', @before), "\n"
+ if $debug_resolvedepends;
+ print STDERR "DEBUG[expanddepends] - ", $item, "\n"
+ if $debug_resolvedepends;
+ my @middle = (
+ $item,
+ map {
+ my $x = $_;
+ my $extlessx = extensionlesslib($x);
+ if (grep { $extlessx eq extensionlesslib($_) } @before
+ and
+ !grep { $extlessx eq extensionlesslib($_) } @after) {
+ print STDERR "DEBUG[expanddepends] + ", $x, "\n"
+ if $debug_resolvedepends;
+ ( $x )
+ } else {
+ print STDERR "DEBUG[expanddepends] ! ", $x, "\n"
+ if $debug_resolvedepends;
+ ()
+ }
+ } @{$unified_info{depends}->{$item} // []}
+ );
+ print STDERR "DEBUG[expanddepends] = ", join(' ', @middle), "\n"
+ if $debug_resolvedepends;
+ print STDERR "DEBUG[expanddepends]/ ", join(' ', @after), "\n"
+ if $debug_resolvedepends;
+ push @before, @middle;
+ }
+ print STDERR "DEBUG[expanddepends]< ", join(' ', @before), "\n"
+ if $debug_resolvedepends;
+ @before;
+ }
+
+ # reducedepends looks through a list, and checks if each item is
+ # repeated later on. If it is, the earlier copy is dropped.
sub reducedepends {
my @list = @_;
+ print STDERR "DEBUG[reducedepends]> ", join(' ', @list), "\n"
+ if $debug_resolvedepends;
my @newlist = ();
+ my %replace = ();
while (@list) {
my $item = shift @list;
- push @newlist, $item
- unless grep { $item eq $_ } @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;
+ }
}
+ @newlist = map { $replace{$_} // $_; } @newlist;
+ print STDERR "DEBUG[reducedepends]< ", join(' ', @newlist), "\n"
+ if $debug_resolvedepends;
@newlist;
}
+ # Do it all
+ # This takes multiple inputs and combine them into a single list of
+ # interdependent things. The returned value will include all the input.
+ # Callers are responsible for taking away the things they are building.
+ sub resolvedepends {
+ print STDERR "DEBUG[resolvedepends] START (", join(', ', @_), ")\n"
+ if $debug_resolvedepends;
+ my @all =
+ reducedepends(expanddepends(map { ( $_, collectdepends($_) ) } @_));
+ print STDERR "DEBUG[resolvedepends] END (", join(', ', @_), ") : ",
+ join(',', map { "\n $_" } @all), "\n"
+ if $debug_resolvedepends;
+ @all;
+ }
+
+ # 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,
+ product => $bin,
generator => $unified_info{generate}->{$src},
+ generator_incs => $unified_info{includes}->{$script},
+ generator_deps => $unified_info{depends}->{$script},
deps => $unified_info{depends}->{$src},
+ incs => [ defined $obj
+ ? @{$unified_info{includes}->{$obj}}
+ : (),
+ defined $bin
+ ? @{$unified_info{includes}->{$bin}}
+ : () ],
+ defs => [ defined $obj
+ ? @{$unified_info{defines}->{$obj}}
+ : (),
+ defined $bin
+ ? @{$unified_info{defines}->{$bin}}
+ : () ],
%opts);
foreach (@{$unified_info{depends}->{$src}}) {
- dogenerate($_, %opts);
+ dogenerate($_, $obj, $bin, %opts);
}
}
$cache{$src} = 1;
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}} ],
+ my @srcs = @{$unified_info{sources}->{$obj}};
+ my @deps = @{$unified_info{depends}->{$obj}};
+ my @incs = ( @{$unified_info{includes}->{$obj}},
+ @{$unified_info{includes}->{$bin}} );
+ my @defs = ( @{$unified_info{defines}->{$obj}},
+ @{$unified_info{defines}->{$bin}} );
+ print STDERR "DEBUG[doobj] \@srcs for $obj ($bin) : ",
+ join(",", map { "\n $_" } @srcs), "\n"
+ if $debug_rules;
+ print STDERR "DEBUG[doobj] \@deps for $obj ($bin) : ",
+ join(",", map { "\n $_" } @deps), "\n"
+ if $debug_rules;
+ print STDERR "DEBUG[doobj] \@incs for $obj ($bin) : ",
+ join(",", map { "\n $_" } @incs), "\n"
+ if $debug_rules;
+ print STDERR "DEBUG[doobj] \@defs for $obj ($bin) : ",
+ join(",", map { "\n $_" } @defs), "\n"
+ if $debug_rules;
+ print STDERR "DEBUG[doobj] \%opts for $obj ($bin) : ", ,
+ join(",", map { "\n $_ = $opts{$_}" } sort keys %opts), "\n"
+ if $debug_rules;
+ $OUT .= src2obj(obj => $obj, product => $bin,
+ srcs => [ @srcs ], deps => [ @deps ],
+ incs => [ @incs ], defs => [ @defs ],
%opts);
foreach ((@{$unified_info{sources}->{$obj}},
@{$unified_info{depends}->{$obj}})) {
- dogenerate($_, %opts);
+ dogenerate($_, $obj, $bin, %opts);
}
}
$cache{$obj} = 1;
}
+ # Helper functions to grab all applicable intermediary files.
+ # This is particularly useful when a library is given as source
+ # rather than a dependency. In that case, we consider it to be a
+ # container with object file references, or possibly references
+ # to further libraries to pilfer in the same way.
+ sub getsrclibs {
+ my $section = shift;
+
+ # For all input, see if it sources static libraries. If it does,
+ # return them together with the result of a recursive call.
+ map { ( $_, getsrclibs($section, $_) ) }
+ grep { $_ =~ m|\.a$| }
+ map { @{$unified_info{$section}->{$_} // []} }
+ @_;
+ }
+
+ sub getlibobjs {
+ my $section = shift;
+
+ # For all input, see if it's an intermediary file (library or object).
+ # If it is, collect the result of a recursive call, or if that returns
+ # an empty list, the element itself. Return the result.
+ map {
+ my @x = getlibobjs($section, @{$unified_info{$section}->{$_}});
+ @x ? @x : ( $_ );
+ }
+ grep { defined $unified_info{$section}->{$_} }
+ @_;
+ }
+
# dolib is responsible for building libraries. It will call
- # libobj2shlib is shared libraries are produced, and obj2lib in all
+ # obj2shlib if 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}->{$lib}} ],
- deps => [ reducedepends(resolvedepends($lib)) ],
- %ordinals);
+
+ my %attrs = %{$unified_info{attributes}->{libraries}->{$lib}};
+
+ my @deps = ( resolvedepends(getsrclibs('sources', $lib)) );
+
+ # We support two types of objs, those who are specific to this library
+ # (they end up in @objs) and those that we get indirectly, via other
+ # libraries (they end up in @foreign_objs). We get the latter any time
+ # someone has done something like this in build.info:
+ # SOURCE[libfoo.a]=libbar.a
+ # The indirect object files must be kept in a separate array so they
+ # don't get rebuilt unnecessarily (and with incorrect auxiliary
+ # information).
+ #
+ # Object files can't be collected commonly for shared and static
+ # libraries, because we contain their respective object files in
+ # {shared_sources} and {sources}, and because the implications are
+ # slightly different for each library form.
+ #
+ # We grab all these "foreign" object files recursively with getlibobjs().
+
+ unless ($disabled{shared} || $lib =~ /\.a$/) {
+ my $obj2shlib = defined &obj2shlib ? \&obj2shlib : \&libobj2shlib;
+ # If this library sources other static libraries and those
+ # libraries are marked {noinst}, there's no need to include
+ # all of their object files. Instead, we treat those static
+ # libraries as dependents alongside any other library this
+ # one depends on, and let symbol resolution do its job.
+ my @sourced_libs = ();
+ my @objs = ();
+ my @foreign_objs = ();
+ my @deps = ();
+ foreach (@{$unified_info{shared_sources}->{$lib}}) {
+ if ($_ !~ m|\.a$|) {
+ push @objs, $_;
+ } elsif ($unified_info{attributes}->{libraries}->{$_}->{noinst}) {
+ push @deps, $_;
+ } else {
+ push @deps, getsrclibs('sources', $_);
+ push @foreign_objs, getlibobjs('sources', $_);
+ }
+ }
+ @deps = ( grep { $_ ne $lib } resolvedepends($lib, @deps) );
+ print STDERR "DEBUG[dolib:shlib] \%attrs for $lib : ", ,
+ join(",", map { "\n $_ = $attrs{$_}" } sort keys %attrs), "\n"
+ if %attrs && $debug_rules;
+ print STDERR "DEBUG[dolib:shlib] \@deps for $lib : ",
+ join(",", map { "\n $_" } @deps), "\n"
+ if @deps && $debug_rules;
+ print STDERR "DEBUG[dolib:shlib] \@objs for $lib : ",
+ join(",", map { "\n $_" } @objs), "\n"
+ if @objs && $debug_rules;
+ print STDERR "DEBUG[dolib:shlib] \@foreign_objs for $lib : ",
+ join(",", map { "\n $_" } @foreign_objs), "\n"
+ if @foreign_objs && $debug_rules;
+ $OUT .= $obj2shlib->(lib => $lib,
+ attrs => { %attrs },
+ objs => [ @objs, @foreign_objs ],
+ deps => [ @deps ]);
+ foreach (@objs) {
+ # If this is somehow a compiled object, take care of it that way
+ # Otherwise, it might simply be generated
+ if (defined $unified_info{sources}->{$_}) {
+ if($_ =~ /\.a$/) {
+ dolib($_);
+ } else {
+ doobj($_, $lib, intent => "shlib", attrs => { %attrs });
+ }
+ } else {
+ dogenerate($_, undef, undef, intent => "lib");
+ }
+ }
+ }
+ {
+ # When putting static libraries together, we cannot rely on any
+ # symbol resolution, so for all static libraries used as source for
+ # this one, as well as other libraries they depend on, we simply
+ # grab all their object files unconditionally,
+ # Symbol resolution will happen when any program, module or shared
+ # library is linked with this one.
+ my @objs = ();
+ my @sourcedeps = ();
+ my @foreign_objs = ();
+ foreach (@{$unified_info{sources}->{$lib}}) {
+ if ($_ !~ m|\.a$|) {
+ push @objs, $_;
+ } else {
+ push @sourcedeps, $_;
+ }
+ }
+ @sourcedeps = ( grep { $_ ne $lib } resolvedepends(@sourcedeps) );
+ print STDERR "DEBUG[dolib:lib] : \@sourcedeps for $_ : ",
+ join(",", map { "\n $_" } @sourcedeps), "\n"
+ if @sourcedeps && $debug_rules;
+ @foreign_objs = getlibobjs('sources', @sourcedeps);
+ print STDERR "DEBUG[dolib:lib] \%attrs for $lib : ", ,
+ join(",", map { "\n $_ = $attrs{$_}" } sort keys %attrs), "\n"
+ if %attrs && $debug_rules;
+ print STDERR "DEBUG[dolib:lib] \@objs for $lib : ",
+ join(",", map { "\n $_" } @objs), "\n"
+ if @objs && $debug_rules;
+ print STDERR "DEBUG[dolib:lib] \@foreign_objs for $lib : ",
+ join(",", map { "\n $_" } @foreign_objs), "\n"
+ if @foreign_objs && $debug_rules;
+ $OUT .= obj2lib(lib => $lib, attrs => { %attrs },
+ objs => [ @objs, @foreign_objs ]);
+ foreach (@objs) {
+ doobj($_, $lib, intent => "lib", attrs => { %attrs });
+ }
}
- $OUT .= obj2lib(lib => $lib,
- objs => [ map { (my $x = $_) =~ s|\.o$||; $x }
- @{$unified_info{sources}->{$lib}} ]);
- map { doobj($_, $lib, intent => "lib") } @{$unified_info{sources}->{$lib}};
$cache{$lib} = 1;
}
- # doengine is responsible for building engines. It will call
+ # domodule is responsible for building modules. 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}->{$lib}} ],
- deps => [ resolvedepends($lib) ]);
- map { doobj($_, $lib, intent => "dso") } @{$unified_info{sources}->{$lib}};
- $cache{$lib} = 1;
+ sub domodule {
+ my $module = shift;
+ return "" if $cache{$module};
+ my %attrs = %{$unified_info{attributes}->{modules}->{$module}};
+ my @objs = @{$unified_info{sources}->{$module}};
+ my @deps = ( grep { $_ ne $module }
+ resolvedepends($module) );
+ print STDERR "DEBUG[domodule] \%attrs for $module :",
+ join(",", map { "\n $_ = $attrs{$_}" } sort keys %attrs), "\n"
+ if $debug_rules;
+ print STDERR "DEBUG[domodule] \@objs for $module : ",
+ join(",", map { "\n $_" } @objs), "\n"
+ if $debug_rules;
+ print STDERR "DEBUG[domodule] \@deps for $module : ",
+ join(",", map { "\n $_" } @deps), "\n"
+ if $debug_rules;
+ $OUT .= obj2dso(module => $module,
+ attrs => { %attrs },
+ objs => [ @objs ],
+ deps => [ @deps ]);
+ foreach (@{$unified_info{sources}->{$module}}) {
+ # 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($_, $module, intent => "dso", attrs => { %attrs });
+ } else {
+ dogenerate($_, undef, $module, intent => "dso");
+ }
+ }
+ $cache{$module} = 1;
}
# dobin is responsible for building programs. It will call obj2bin,
sub dobin {
my $bin = shift;
return "" if $cache{$bin};
- my $deps = [ reducedepends(resolvedepends($bin)) ];
+ my %attrs = %{$unified_info{attributes}->{programs}->{$bin}};
+ my @objs = @{$unified_info{sources}->{$bin}};
+ my @deps = ( grep { $_ ne $bin } resolvedepends($bin) );
+ print STDERR "DEBUG[dobin] \%attrs for $bin : ",
+ join(",", map { "\n $_ = $attrs{$_}" } sort keys %attrs), "\n"
+ if %attrs && $debug_rules;
+ print STDERR "DEBUG[dobin] \@objs for $bin : ",
+ join(",", map { "\n $_" } @objs), "\n"
+ if @objs && $debug_rules;
+ print STDERR "DEBUG[dobin] \@deps for $bin : ",
+ join(",", map { "\n $_" } @deps), "\n"
+ if @deps && $debug_rules;
$OUT .= obj2bin(bin => $bin,
- objs => [ map { (my $x = $_) =~ s|\.o$||; $x }
- @{$unified_info{sources}->{$bin}} ],
- deps => $deps);
- map { doobj($_, $bin, intent => "bin") } @{$unified_info{sources}->{$bin}};
+ attrs => { %attrs },
+ objs => [ @objs ],
+ deps => [ @deps ]);
+ foreach (@objs) {
+ doobj($_, $bin, intent => "bin", attrs => { %attrs });
+ }
$cache{$bin} = 1;
}
my $script = shift;
return "" if $cache{$script};
$OUT .= in2script(script => $script,
+ attrs => $unified_info{attributes}->{$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;
+ }
+
+ # dodocs is responsible for building documentation from .pods.
+ # It will call generatesrc.
+ sub dodocs {
+ my $type = shift;
+ my $section = shift;
+ foreach my $doc (@{$unified_info{"${type}docs"}->{$section}}) {
+ next if $cache{$doc};
+ $OUT .= generatesrc(src => $doc,
+ generator => $unified_info{generate}->{$doc});
+ foreach ((@{$unified_info{depends}->{$doc}})) {
+ dogenerate($_, undef, undef, %opts);
+ }
+ $cache{$doc} = 1;
+ }
+ }
+
# Start with populating the cache with all the overrides
%cache = map { $_ => 1 } @{$unified_info{overrides}};
- # Build all known libraries, engines, programs and scripts.
+ # Build mandatory generated headers
+ foreach (@{$unified_info{depends}->{""}}) { dogenerate($_); }
+
+ # Build all known libraries, modules, programs and scripts.
# Everything else will be handled as a consequence.
- map { dolib($_) } @{$unified_info{libraries}};
- map { doengine($_) } @{$unified_info{engines}};
- map { dobin($_) } @{$unified_info{programs}};
- map { doscript($_) } @{$unified_info{scripts}};
-
- # Finally, should there be any applicable BEGINRAW/ENDRAW sections,
- # they are added here.
- $OUT .= $_."\n" foreach(@{$unified_info{rawlines}});
+ foreach (@{$unified_info{libraries}}) { dolib($_); }
+ foreach (@{$unified_info{modules}}) { domodule($_); }
+ foreach (@{$unified_info{programs}}) { dobin($_); }
+ foreach (@{$unified_info{scripts}}) { doscript($_); }
+ foreach (sort keys %{$unified_info{htmldocs}}) { dodocs('html', $_); }
+ foreach (sort keys %{$unified_info{mandocs}}) { dodocs('man', $_); }
+ foreach (sort keys %{$unified_info{dirinfo}}) { dodir($_); }
-}
projects / openssl.git / blobdiff