# in the file LICENSE in the source distribution or at
# https://www.openssl.org/source/license.html
+use strict;
+use warnings;
+
use lib '.';
use configdata;
+use File::Spec::Functions qw(canonpath rel2abs);
use File::Compare qw(compare_text);
+# When using stat() on Windows, we can get it to perform better by avoid some
+# data. This doesn't affect the mtime field, so we're not losing anything...
+${^WIN32_SLOPPY_STAT} = 1;
+
my $buildfile = $config{build_file};
-my $buildfile_new = "$buildfile-$$";
+my $build_mtime = (stat($buildfile))[9];
+my $rebuild = 0;
my $depext = $target{dep_extension} || ".d";
-my @deps =
+my @depfiles =
sort
- grep { -f $_ }
+ grep {
+ # This grep has side effects. Not only does if check the existence
+ # of the dependency file given in $_, but it also checks if it's
+ # newer than the build file, and if it is, sets $rebuild.
+ my @st = stat($_);
+ $rebuild = 1 if @st && $st[9] > $build_mtime;
+ scalar @st > 0; # Determines the grep result
+ }
map { (my $x = $_) =~ s|\.o$|$depext|; $x; }
grep { $unified_info{sources}->{$_}->[0] =~ /\.cc?$/ }
keys %{$unified_info{sources}};
+exit 0 unless $rebuild;
+
+# Ok, primary checks are done, time to do some real work
+
+my $abs_srcdir = rel2abs($config{sourcedir});
+my $abs_blddir = rel2abs($config{builddir});
+
+my $producer = shift @ARGV;
+die "Producer not given\n" unless $producer;
+
+my %procedures = (
+ 'gcc' => undef, # gcc style dependency files needs no mods
+ 'makedepend' =>
+ sub {
+ # makedepend, in its infinite wisdom, wants to have the object file
+ # in the same directory as the source file. This doesn't work too
+ # well with out-of-source-tree builds, so we must resort to tricks
+ # to get things right. Fortunately, the .d files are always placed
+ # parallel with the object files, so all we need to do is construct
+ # the object file name from the dep file name.
+ (my $objfile = shift) =~ s|\.d$|.o|i;
+ my $line = shift;
+
+ # Discard comments
+ return undef if $line =~ /^(#.*|\s*)$/;
+
+ # Remove the original object file
+ $line =~ s|^.*\.o: | |;
+ # Also, remove any dependency that starts with a /, because those
+ # are typically system headers
+ $line =~ s/\s+\/(\\.|\S)*//g;
+ # Finally, discard all empty lines
+ return undef if $line =~ /^\s*$/;
+
+ # All we got now is a dependency, just shave off surrounding spaces
+ $line =~ s/^\s+//;
+ $line =~ s/\s+$//;
+ return ($objfile, $line);
+ },
+ 'VMS C' =>
+ sub {
+ # current versions of DEC / Compaq / HP / VSI C strips away all
+ # directory information from the object file, so we must insert it
+ # back. To make life simpler, we simply replace it with the
+ # corresponding .D file that's had its extension changed. Since
+ # .D files are always written parallel to the object files, we
+ # thereby get the directory information for free.
+ (my $objfile = shift) =~ s|\.D$|.OBJ|i;
+ my $line = shift;
+
+ # Shave off the target.
+ #
+ # The pattern for target and dependencies will always take this
+ # form:
+ #
+ # target SPACE : SPACE deps
+ #
+ # This is so a volume delimiter (a : without any spaces around it)
+ # won't get mixed up with the target / deps delimiter. We use this
+ # to easily identify what needs to be removed.
+ m|\s:\s|; $line = $';
+
+ # We know that VMS has system header files in text libraries,
+ # extension .TLB. We also know that our header files aren't stored
+ # in text libraries. Finally, we know that VMS C produces exactly
+ # one dependency per line, so we simply discard any line ending with
+ # .TLB.
+ return undef if /\.TLB\s*$/;
+
+ # All we got now is a dependency, just shave off surrounding spaces
+ $line =~ s/^\s+//;
+ $line =~ s/\s+$//;
+ return ($objfile, $line);
+ },
+ 'VC' =>
+ sub {
+ # For the moment, we only support Visual C on native Windows, or
+ # compatible compilers. With those, the flags /Zs /showIncludes
+ # give us the necessary output to be able to create dependencies
+ # that nmake (or any 'make' implementation) should be able to read,
+ # with a bit of help. The output we're interested in looks like
+ # this (it always starts the same)
+ #
+ # Note: including file: {whatever header file}
+ #
+ # Since there's no object file name at all in that information,
+ # we must construct it ourselves.
+
+ (my $objfile = shift) =~ s|\.d$|.obj|i;
+ my $line = shift;
+
+ # There are also other lines mixed in, for example compiler
+ # warnings, so we simply discard anything that doesn't start with
+ # the Note:
+
+ if (/^Note: including file: */) {
+ (my $tail = $') =~ s/\s*\R$//;
+
+ # VC gives us absolute paths for all include files, so to
+ # remove system header dependencies, we need to check that
+ # they don't match $abs_srcdir or $abs_blddir
+ $tail = canonpath($tail);
+ if ($tail =~ m|^\Q$abs_srcdir\E|i
+ || $tail =~ m|^\Q$abs_blddir\E|i) {
+ return ($objfile, "\"$tail\"");
+ }
+ }
+
+ return undef;
+ },
+);
+my %continuations = (
+ 'gcc' => undef,
+ 'makedepend' => "\\",
+ 'VMS C' => "-",
+ 'VC' => "\\",
+);
+
+die "Producer unrecognised: $producer\n"
+ unless exists $procedures{$producer} && exists $continuations{$producer};
+
+my $procedure = $procedures{$producer};
+my $continuation = $continuations{$producer};
+
+my $buildfile_new = "$buildfile-$$";
+
+my %collect = ();
+if (defined $procedure) {
+ foreach my $depfile (@depfiles) {
+ open IDEP,$depfile or die "Trying to read $depfile: $!\n";
+ while (<IDEP>) {
+ s|\R$||; # The better chomp
+ my ($target, $deps) = $procedure->($depfile, $_);
+ $collect{$target}->{$deps} = 1 if defined $target;
+ }
+ close IDEP;
+ }
+}
+
open IBF, $buildfile or die "Trying to read $buildfile: $!\n";
open OBF, '>', $buildfile_new or die "Trying to write $buildfile_new: $!\n";
while (<IBF>) {
- $force_rewrite = 0;
last if /^# DO NOT DELETE THIS LINE/;
print OBF or die "$!\n";
- $force_rewrite = 1;
}
close IBF;
print OBF "# DO NOT DELETE THIS LINE -- make depend depends on it.\n";
-foreach (@deps) {
- open IBF,$_ or die "Trying to read $_: $!\n";
- while (<IBF>) {
- print OBF or die "$!\n";
+if (defined $procedure) {
+ foreach my $target (sort keys %collect) {
+ my $prefix = $target . ' :';
+ my @deps = sort keys %{$collect{$target}};
+
+ while (@deps) {
+ my $buf = $prefix;
+ $prefix = '';
+
+ while (@deps && ($buf eq ''
+ || length($buf) + length($deps[0]) <= 77)) {
+ $buf .= ' ' . shift @deps;
+ }
+ $buf .= ' '.$continuation if @deps;
+
+ print OBF $buf,"\n" or die "Trying to print: $!\n"
+ }
+ }
+} else {
+ foreach my $depfile (@depfiles) {
+ open IDEP,$depfile or die "Trying to read $depfile: $!\n";
+ while (<IDEP>) {
+ print OBF or die "Trying to print: $!\n";
+ }
+ close IDEP;
}
- close IBF;
}
+
close OBF;
if (compare_text($buildfile_new, $buildfile) != 0) {
rename $buildfile_new, $buildfile
or die "Trying to rename $buildfile_new -> $buildfile: $!\n";
}
-# On VMS, we want to remove all generations of this file, in case there are
-# more than one
-while (unlink $buildfile_new) {}
+
+END {
+ # On VMS, we want to remove all generations of this file, in case there
+ # are more than one, so we loop.
+ if (defined $buildfile_new) {
+ while (unlink $buildfile_new) {}
+ }
+}
+++ /dev/null
-#! /usr/bin/env perl
-# Copyright 2018 The OpenSSL Project Authors. All Rights Reserved.
-#
-# Licensed under the OpenSSL license (the "License"). You may not use
-# this file except in compliance with the License. You can obtain a copy
-# in the file LICENSE in the source distribution or at
-# https://www.openssl.org/source/license.html
-
-use strict;
-use warnings;
-
-use lib '.';
-use configdata;
-
-use File::Spec::Functions qw(canonpath rel2abs);
-
-my $abs_srcdir = rel2abs($config{sourcedir});
-my $abs_blddir = rel2abs($config{builddir});
-
-my $producer = shift @ARGV;
-die "Producer not given\n" unless $producer;
-
-my $procedure = {
- 'makedepend' =>
- sub {
- my $line = shift;
-
- # makedepend, in its infinite wisdom, wants to have the object file
- # in the same directory as the source file. This doesn't work too
- # well with out-of-source-tree builds, so we must resort to tricks
- # to get things right. The trick is to call makedepend with an
- # extra suffix that contains the desired object file path, like
- # this:
- #
- # makedepend -f- -o"|dir/foo.o" -- $(CFLAGS) -- ../some/foo.c
- #
- # The result will look something like this:
- #
- # ../somewhere/foo|dir/foo.o: deps...
- #
- # Which is easy to massage by removing everything up to the first |
-
- # Remove everything up to the first |
- $line =~ s/^.*\|//;
- # Also, remove any dependency that starts with a /, because those
- # are typically system headers
- $line =~ s/\s+\/(\\.|\S)*//g;
- # Finally, discard all empty lines or comment lines
- return undef if $line =~ /:\s*$/ || $line =~ /^(#.*|\s*)$/;
-
- my ($target, $deps) = $line =~ /^((?:\\.|[^:])*):(.*)/;
- $deps =~ s/^\s+//;
- $deps =~ s/\s+$//;
- return ($target, $deps);
- },
- 'VMS C' =>
- sub {
- my $line = shift;
-
- # current versions of DEC / Compaq / HP / VSI C strips away all
- # directory information from the object file, so we must insert it
- # back. Just to be safe against future changes, we check that there
- # really is no directory information.
- my $directory = shift;
-
- # The pattern for target and dependencies will always take this
- # form:
- #
- # target SPACE : SPACE deps
- #
- # This is so a volume delimiter (a : without any spaces around it)
- # won't get mixed up with the target / deps delimiter. We use this
- # fact in the regexp below to make sure we do look at the target.
- $line =~ s/^/$directory/ unless /^\S+[:>\]]\S+\s+:/;
-
- # We know that VMS has system header files in text libraries,
- # extension .TLB. We also know that our header files aren't stored
- # in text libraries. Finally, we know that VMS C produces exactly
- # one dependency per line, so we simply discard any line ending with
- # .TLB.
- return undef if /\.TLB\s*$/;
-
- my ($target, $deps) = $line =~ /^(.*)\s:\s(.*)/;
- $deps =~ s/^\s+//;
- $deps =~ s/\s+$//;
- return ($target, $deps);
- },
- 'VC' =>
- sub {
- my $line = shift;
- my $object = shift;
-
- # For the moment, we only support Visual C on native Windows, or
- # compatible compilers. With those, the flags /Zs /showIncludes
- # give us the necessary output to be able to create dependencies
- # that nmake (or any 'make' implementation) should be able to read,
- # with a bit of help. The output we're interested in looks like
- # this (it always starts the same)
- #
- # Note: including file: {whatever header file}
- #
- # So all we really have to do is to is to replace the start of the
- # line with an object file specification, given to us as an extra
- # argument (passed from $ARGV[1]);
- #
- # There are also other lines mixed in, for example compiler
- # warnings, so we simply discard anything that doesn't start with
- # the Note:
-
- if (/^Note: including file: */) {
- (my $tail = $') =~ s/\s*\R$//;
-
- # VC gives us absolute paths for all include files, so to
- # remove system header dependencies, we need to check that
- # they don't match $abs_srcdir or $abs_blddir
- $tail = canonpath($tail);
- if ($tail =~ m|^\Q$abs_srcdir\E|i
- || $tail =~ m|^\Q$abs_blddir\E|i) {
- return ($object, "\"$tail\"");
- }
- }
-
- return undef;
- },
-} -> {$producer};
-
-die "Producer unrecognised: $producer\n" unless defined $procedure;
-
-my %collect = ();
-while (<STDIN>) {
- s|\R$||; # The better chomp
- my ($target, $deps) = $procedure->($_, @ARGV);
- $collect{$target}->{$deps} = 1
- if defined $target;
-}
-
-my $continuation = {
- 'makedepend' => "\\",
- 'VMS C' => "-",
- 'VC' => "\\",
-} -> {$producer};
-
-die "Producer unrecognised: $producer\n" unless defined $continuation;
-
-foreach my $target (sort keys %collect) {
- my $prefix = $target . ' :';
- my @deps = sort keys %{$collect{$target}};
-
- while (@deps) {
- my $buf = $prefix;
- $prefix = '';
-
- while (@deps && ($buf eq '' || length($buf) + length($deps[0]) <= 77)) {
- $buf .= ' ' . shift @deps;
- }
- $buf .= ' '.$continuation if @deps;
-
- print $buf,"\n";
- }
-}
projects / oweals / openssl.git / commitdiff