gcc/libiberty/maint-tool
2022-01-03 10:42:10 +01:00

299 lines
6.5 KiB
Perl

#!/usr/bin/perl
# -*- perl -*-
# Copyright (C) 2001-2022 Free Software Foundation, Inc.
#
# This file is part of the libiberty library.
# Libiberty is free software; you can redistribute it and/or
# modify it under the terms of the GNU Library General Public
# License as published by the Free Software Foundation; either
# version 2 of the License, or (at your option) any later version.
#
# Libiberty is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# Library General Public License for more details.
#
# You should have received a copy of the GNU Library General Public
# License along with libiberty; see the file COPYING.LIB. If not,
# write to the Free Software Foundation, Inc., 51 Franklin Street - Fifth Floor,
# Boston, MA 02110-1301, USA.
#
# Originally written by DJ Delorie <dj@redhat.com>
# This is a trivial script which checks the lists of C and O files in
# the Makefile for consistency.
$mode = shift;
$srcdir = ".";
if ($mode eq "-s") {
$srcdir = shift;
$mode = shift;
}
&missing() if $mode eq "missing";
&undoc() if $mode eq "undoc";
&deps() if $mode eq "deps";
exit 0;
format STDOUT =
^<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<~
$out
^<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<~~
$out
.
######################################################################
sub missing {
opendir(S, $srcdir);
while ($f = readdir S) {
$have{$f} = 1;
}
closedir(S);
opendir(S, ".");
while ($f = readdir S) {
$have{$f} = 1;
}
closedir(S);
for $a (@ARGV) {
$listed{$a} = 1;
$have{$a} = 0;
}
for $f (sort keys %have) {
next unless $have{$f};
if ($f =~ /\.c$/) {
print "S $f\n";
}
}
for $f (sort keys %listed) {
if ($f =~ /(.*)\.c$/) {
$base = $1;
if (! $listed{"./$base.o"}) {
print "O $f\n";
}
}
}
}
######################################################################
sub undoc {
opendir(S, $srcdir);
while ($file = readdir S) {
if ($file =~ /\.texi$/) {
open(T, "$srcdir/$file");
while (<T>) {
if (/^\@deftype[^\(]* ([^\s\(]+) *\(/) {
$documented{$1} = 1;
}
}
close(T);
}
if ($file =~ /\.c$/) {
open(C, "$srcdir/$file");
while (<C>) {
if (/\@undocumented (\S+)/) {
$documented{$1} = 1;
}
if (/^static /) {
if (! /[\(;]/) {
s/[\r\n]+$/ /;
$_ .= <C>;
}
while ($_ =~ /\([^\)]*$/) {
s/[\r\n]+$/ /;
$_ .= <C>;
}
}
s/ VPARAMS([ \(])/$1/;
s/PREFIX\(([^\)]*)\)/byte_$1/;
if (/^static [^\(]* ([^\s\(]+) *\(.*\)$/) {
$documented{$1} = 1;
}
}
}
}
closedir(D);
# $out = join(' ', sort keys %documented);
# write;
# print "\n";
system "etags $srcdir/*.c $srcdir/../include/*.h";
open(TAGS, "TAGS");
while (<TAGS>) {
s/[\r\n]+$//;
if (/^\014$/) {
$filename = <TAGS>;
$filename =~ s/[\r\n]+$//;
$filename =~ s/,\d+$//;
$filename =~ s@.*[/\\]@@;
next;
}
if ($filename =~ /\.c$/ ) {
next unless /^[_a-zA-Z]/;
} else {
next unless /^\# *define/;
s/\# *define *//;
}
s/ VPARAMS//;
s/ *\177.*//;
s/,$//;
s/DEFUN\(//;
s/\(//;
next if /^static /;
next if /\s/;
next if /^_/;
next if $documented{$_};
next if /_H_?$/;
if ($seen_in{$_} ne $filename) {
$saw{$_} ++;
}
$seen_in{$_} = $filename;
}
for $k (keys %saw) {
delete $saw{$k} if $saw{$k} > 1;
}
for $k (sort keys %saw) {
$fromfile{$seen_in{$k}} .= " " if $fromfile{$seen_in{$k}};
$fromfile{$seen_in{$k}} .= $k;
}
for $f (sort keys %fromfile) {
$out = "$f: $fromfile{$f}";
write;
}
}
######################################################################
sub deps_for {
my($f) = @_;
my(%d);
open(F, $f);
%d = ();
while (<F>) {
if (/^#\s*include\s+["<](.*)[">]/) {
$d{$1} = 1;
}
}
close(F);
return keys %d;
}
sub canonicalize {
my ($p) = @_;
0 while $p =~ s@/\./@/@g;
0 while $p =~ s@^\./@@g;
0 while $p =~ s@/[^/]+/\.\./@/@g;
return $p;
}
sub locals_first {
my ($a,$b) = @_;
return -1 if $a eq "config.h";
return 1 if $b eq "config.h";
return $a cmp $b;
}
sub deps {
$crule = "\tif [ x\"\$(PICFLAG)\" != x ]; then \\\n";
$crule .= "\t \$(COMPILE.c) \$(PICFLAG) \$< -o pic/\$@; \\\n";
$crule .= "\telse true; fi\n";
$crule .= "\tif [ x\"\$(NOASANFLAG)\" != x ]; then \\\n";
$crule .= "\t \$(COMPILE.c) \$(PICFLAG) \$(NOASANFLAG) \$< -o noasan/\$@; \\\n";
$crule .= "\telse true; fi\n";
$crule .= "\t\$(COMPILE.c) \$< \$(OUTPUT_OPTION)\n";
$crule .= "\n";
$incdir = shift @ARGV;
opendir(INC, $incdir);
while ($f = readdir INC) {
next unless $f =~ /\.h$/ || $f =~ /\.def$/;
$mine{$f} = "\$(INCDIR)/$f";
$deps{$f} = join(' ', &deps_for("$incdir/$f"));
}
$mine{'config.h'} = "config.h";
opendir(INC, $srcdir);
while ($f = readdir INC) {
next unless $f =~ /\.h$/;
$mine{$f} = "\$(srcdir)/$f";
$deps{$f} = join(' ', &deps_for("$srcdir/$f"));
}
$mine{'config.h'} = "config.h";
open(IN, "$srcdir/Makefile.in");
open(OUT, ">$srcdir/Makefile.tmp");
while (<IN>) {
last if /remainder of this file/;
print OUT;
}
print OUT "# The dependencies in the remainder of this file are automatically\n";
print OUT "# generated by \"make maint-deps\". Manual edits will be lost.\n\n";
opendir(S, $srcdir);
for $f (sort readdir S) {
if ($f =~ /\.c$/) {
%scanned = ();
@pending = &deps_for("$srcdir/$f");
while (@pending) {
@tmp = @pending;
@pending = ();
for $p (@tmp) {
next unless $mine{$p};
if (!$scanned{$p}) {
push(@pending, split(' ', $deps{$p}));
$scanned{$p} = 1;
}
}
}
@deps = sort { &locals_first($a,$b) } keys %scanned;
$obj = $f;
$obj =~ s/\.c$/.\$(objext)/;
$obj = "./$obj:";
if ($#deps >= 0) {
print OUT "$obj \$(srcdir)/$f";
$len = length("$obj $f");
for $dt (@deps) {
$d = $mine{$dt};
if ($len + length($d) > 70) {
printf OUT " \\\n\t$d";
$len = 8 + length($d);
} else {
print OUT " $d";
$len += length($d) + 1;
}
}
print OUT "\n";
} else {
print OUT "$obj \$(srcdir)/$f\n";
}
$c = $crule;
$c =~ s@\$\<@\$\(srcdir\)\/$f@g;
print OUT $c;
}
}
closedir(S);
close(IN);
close(OUT);
rename("$srcdir/Makefile.tmp", "$srcdir/Makefile.in");
}