#!/usr/bin/env perl use Fcntl; use POSIX; use strict; # simple pkgconfig goodness my $destdir; my $recursive = 0; my $assembler_out = 0; my %pkg_configs = (); my @pkg_config_paths = split(/:/, $ENV{PKG_CONFIG_PATH}); push @pkg_config_paths, "/usr"; # Stubify a shared library ... sub read_gen_symbols($$) { my ($shlib, $fh) = @_; my $obj; print $fh "\t.file \"$shlib\"\n"; open $obj, "objdump -T $shlib|" || die "Can't objdump $shlib: $!"; while (my $line = <$obj>) { $line =~ /([0-9a-f]*)\s+([gw ])\s+..\s+(\S*)\s*([0-9a-f]+)..............(.*)/ || next; my ($address, $linkage, $type, $size, $symbol) = ($1, $2, $3, $4, $5); next if ($type eq '*UND*' || $type eq '*ABS*'); # print "Symbol '$symbol' type '$type' '$linkage' addr $address, size $size\n"; $symbol || die "no symbol for line $line"; next if ($symbol eq '_init' || $symbol eq '_fini'); $linkage =~ s/g//g; my $progbits = '@progbits'; $progbits = '@nobits' if ($type eq '.bss'); print $fh "\t.section $type.$symbol,\"a".$linkage."G\",$progbits,$symbol,comdat\n"; print $fh ".globl $symbol\n"; print $fh "\t.type $symbol,"; if ($type eq '.text') { print $fh "\@function\n"; } else { print $fh "\@object\n"; } print $fh "$symbol:\n"; if ($type eq '.text') { print $fh "\tret\n"; } else { my $isize = hex($size); print $fh "\t.size $symbol, $isize\n"; for (my $i = 0; $i < $isize; $i++) { print $fh "\t.byte 0\n"; } } print $fh "\n"; } close $obj; } sub stubify($$) { my $shlib = shift; my $output = shift; my ($pipe, $tmpf); my $tmpname; do { $tmpname = tmpnam(); } until sysopen($tmpf, $tmpname, O_RDWR|O_CREAT|O_EXCL, 0666); close($tmpf); if ($assembler_out) { open ($pipe, ">-"); } else { open ($pipe, "| as -o $tmpname") || die "can't start assembler: $!"; } read_gen_symbols ($shlib, $pipe); close ($pipe) || die "Failed to assemble to: $tmpname: $!"; system ("gcc -shared -o $output $tmpname") && die "failed to exec gcc: $!"; unlink $tmpname; } sub help_exit() { print "Usage: stubify \n"; print "Converts libraries into stubs, and bundles them and their pkg-config files\n"; print "into destdir\n"; print " -R stubbify and include all dependent pkgconfig files\n"; exit 1; } sub parse_pkgconfig($$) { my $name = shift; my $file = shift; my $fh; my %hash; my @hashes; print "parse $file\n"; open ($fh, $file) || die "Can't open $file: $!"; while (<$fh>) { my ($key, $value); if (/^\s*([^=]+)\s*=\s*([^=]+)\s*$/) { $key = $1; $value = $2; } elsif (/^\s*([^:]+)\s*:\s*([^:]+)\s*$/) { $key = $1; $value = $2; } elsif (/^\s*$/) { next; } else { die "invalid pkgconfig line: $_\n"; } chomp ($key); chomp ($value); $hash{$key} = $value; } close ($fh); for my $key (keys (%hash)) { print "\t'$key'\t=\t'$hash{$key}'\n"; } $hash{_Name} = $name; $hash{_File} = $file; push @hashes, \%hash; if ($recursive && !defined $pkg_configs{$name} && defined $hash{Requires}) { my @reqs = (); for my $req (split (/[ ,]/, $hash{Requires})) { print "parse $req of $name\n"; push @reqs, get_pc_files($req); } $hash{_Requires} = \@reqs; push @hashes, @reqs; } $pkg_configs{$name} = \%hash; return @hashes; } sub get_pc_files($) { my $name = shift; for my $prefix (@pkg_config_paths) { my $path = "$prefix/lib/pkgconfig/$name.pc"; return parse_pkgconfig ($name,$path) if (-f $path); } die "Failed to find pkg-config file for $name"; } # primitive substitution sub get_var($$) { my ($pc, $var) = @_; my $val = $pc->{"$var"}; while ($val =~ m/^(.*)\$\{\s*(\S+)\s*\}(.*)$/) { $val = $1 . get_var($pc, $2). $3; } return $val; } sub copy_lib($@) { my $lib = shift; while (my $path = shift) { my $name = "$path/$lib"; next if (! -f $name); # need to run ldconfig post install ... while (-l $name) { my $dir = $name; $dir =~ s/\/[^\/]*$//; my $link = readlink($name); if ($link =~ m/^\//) { $name = $link; } else { $name = "$dir/$link"; } } # ignore /lib - they use monstrous symbol versioning if ($name =~ m/^\/lib/) { print "\tskipping system library: $lib in $name\n"; return; } stubify ($name, "$destdir/$name"); } } sub copy_and_stubify ($) { my $pc = shift; `mkdir -p $destdir/usr/lib/pkgconfig`; `mkdir -p $destdir/$pc->{libdir}` if (defined $pc->{libdir}); `mkdir -p $destdir/$pc->{includedir}` if (defined $pc->{includedir}); # copy .pc across - FIXME, may need to re-write paths `cp -a $pc->{_File} $destdir/usr/lib/pkgconfig`; # copy includes across my @includes = split (/ /, get_var ($pc, "Cflags")); for my $arg (@includes) { if ($arg =~ m/^-I(.*)$/) { my $srcdir = $1; if (! -d $srcdir || $srcdir eq '/usr/include') { print "Warning: bogus include of '$srcdir' for pkg $pc->{_Name}\n"; } else { `mkdir -p $destdir/$srcdir`; `cp -a $srcdir/* $destdir/$srcdir`; } } } # stubify libraries my @libs = split (/ /, get_var ($pc, "Libs")); my @libpath = ( "/lib", "/usr/lib" ); for my $arg (@libs) { if ($arg =~ m/^-l(.*)$/) { my $lib = "lib".$1.".so"; # print "lib $lib @libpath?\n"; copy_lib ($lib, @libpath); } elsif ($arg =~ m/^-L(.*)$/) { my $path = $1; push (@libpath, $path) if (! grep ($path, @libpath)); } } } my @pcnames = (); my @tostub; for my $arg (@ARGV) { if ($arg eq '--help' || $arg eq '-h') { help_exit(); } elsif ($arg eq '-r' || $arg eq '-R') { $recursive = 1; } elsif (!defined $destdir) { $destdir = $arg; } else { push @pcnames, $arg; } } help_exit() if (!defined $destdir); `mkdir -p $destdir`; for my $name (@pcnames) { push @tostub, get_pc_files($name); } print "stubify: "; select STDERR; $| = 1; for my $pc (@tostub) { print " " . $pc->{_Name} . "\n"; copy_and_stubify ($pc); } print "\n"; /libreoffice-5-2+backports'>distro/lhm/libreoffice-5-2+backports LibreOffice 核心代码仓库文档基金会
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