mirror of
https://github.com/openssl/openssl.git
synced 2024-11-27 05:21:51 +08:00
f691578bdc
Reviewed-by: Shane Lontis <shane.lontis@oracle.com> Reviewed-by: Tomas Mraz <tomas@openssl.org> Reviewed-by: Paul Dale <pauli@openssl.org> (Merged from https://github.com/openssl/openssl/pull/14806)
493 lines
20 KiB
Perl
493 lines
20 KiB
Perl
{- # -*- Mode: perl -*-
|
|
|
|
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 @_;
|
|
|
|
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 = ();
|
|
|
|
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;
|
|
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;
|
|
# Safety measure
|
|
return "" unless defined $unified_info{generate}->{$_};
|
|
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}->{$src}}) {
|
|
dogenerate($_, $obj, $bin, %opts);
|
|
}
|
|
}
|
|
$cache{$src} = 1;
|
|
}
|
|
|
|
sub dotarget {
|
|
my $target = shift;
|
|
return "" if $cache{$target};
|
|
$OUT .= generatetarget(target => $target,
|
|
deps => $unified_info{depends}->{$target});
|
|
foreach (@{$unified_info{depends}->{$target}}) {
|
|
dogenerate($_);
|
|
}
|
|
$cache{$target} = 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}->{$obj}}) {
|
|
my @srcs = @{$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}->{$obj}})) {
|
|
dogenerate($_, $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
|
|
# 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};
|
|
|
|
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 });
|
|
}
|
|
}
|
|
$cache{$lib} = 1;
|
|
}
|
|
|
|
# domodule is responsible for building modules. It will call
|
|
# obj2dso, and also makes sure all object files for the library
|
|
# are built.
|
|
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,
|
|
# and also makes sure all object files for the library are built.
|
|
sub dobin {
|
|
my $bin = shift;
|
|
return "" if $cache{$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 => $bin,
|
|
attrs => { %attrs },
|
|
objs => [ @objs ],
|
|
deps => [ @deps ]);
|
|
foreach (@objs) {
|
|
doobj($_, $bin, intent => "bin", attrs => { %attrs });
|
|
}
|
|
$cache{$bin} = 1;
|
|
}
|
|
|
|
# doscript is responsible for building scripts from templates. It will
|
|
# call in2script.
|
|
sub doscript {
|
|
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 mandatory header file generators
|
|
foreach (@{$unified_info{depends}->{""}}) { dogenerate($_); }
|
|
|
|
# Build all known targets, libraries, modules, programs and scripts.
|
|
# Everything else will be handled as a consequence.
|
|
foreach (@{$unified_info{targets}}) { dotarget($_); }
|
|
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($_); }
|
|
-}
|