4 use Getopt::Long qw(:config bundling no_auto_abbrev);
9 = qw(config.sh config.h miniperl lib/Config.pm Fcntl perl test_prep);
12 if (open my $fh, '<', '/proc/cpuinfo') {
14 ++$cpus if /^processor\s+:\s+\d+$/;
16 } elsif (-x '/sbin/sysctl') {
17 $cpus = 1 + $1 if `/sbin/sysctl hw.ncpu` =~ /^hw\.ncpu: (\d+)$/;
18 } elsif (-x '/usr/bin/getconf') {
19 $cpus = 1 + $1 if `/usr/bin/getconf _NPROCESSORS_ONLN` =~ /^(\d+)$/;
24 jobs => defined $cpus ? $cpus + 1 : 2,
26 clean => 1, # mostly for debugging this
29 my $linux64 = `uname -sm` eq "Linux x86_64\n" ? '64' : '';
34 # This is the search logic for a multi-arch library layout
35 # added to linux.sh in commits 40f026236b9959b7 and dcffd848632af2c7.
36 my $gcc = -x '/usr/bin/gcc' ? '/usr/bin/gcc' : 'gcc';
38 foreach (`$gcc -print-search-dirs`) {
39 next unless /^libraries: =(.*)/;
40 foreach (split ':', $1) {
49 push @paths, map {$_ . $linux64} qw(/usr/local/lib /lib /usr/lib);
57 ($linux64 ? (libpth => \@paths) : ()),
60 unless(GetOptions(\%options,
61 'target=s', 'jobs|j=i', 'expect-pass=i',
62 'expect-fail' => sub { $options{'expect-pass'} = 0; },
63 'clean!', 'one-liner|e=s', 'match=s', 'force-manifest',
64 'test-build', 'check-args', 'A=s@', 'usage|help|?',
66 my (undef, $val) = @_;
67 if ($val =~ /\A([^=]+)=(.*)/s) {
68 $defines{$1} = length $2 ? $2 : "\0";
74 $defines{$_[1]} = undef;
77 pod2usage(exitval => 255, verbose => 1);
80 my ($target, $j, $match) = @options{qw(target jobs match)};
82 pod2usage(exitval => 255, verbose => 1) if $options{usage};
83 pod2usage(exitval => 255, verbose => 1)
84 unless @ARGV || $match || $options{'test-build'} || defined $options{'one-liner'};
86 exit 0 if $options{'check-args'};
90 bisect.pl - use git bisect to pinpoint changes
94 # When did this become an error?
95 .../Porting/bisect.pl -e 'my $a := 2;'
96 # When did this stop being an error?
97 .../Porting/bisect.pl --expect-fail -e '1 // 2'
98 # When did this stop matching?
99 .../Porting/bisect.pl --match '\b(?:PL_)hash_seed_set\b'
100 # When did this start matching?
101 .../Porting/bisect.pl --expect-fail --match '\buseithreads\b'
102 # When did this test program stop working?
103 .../Porting/bisect.pl -- ./perl -Ilib ../test_prog.pl
104 # When did this first become valid syntax?
105 .../Porting/bisect.pl --target=miniperl --end=v5.10.0 \
106 --expect-fail -e 'my $a := 2;'
107 # What was the last revision to build with these options?
108 .../Porting/bisect.pl --test-build -Dd_dosuid
112 Together F<bisect.pl> and F<bisect-runner.pl> attempt to automate the use
113 of C<git bisect> as much as possible. With one command (and no other files)
114 it's easy to find out
120 Which commit caused this example code to break?
124 Which commit caused this example code to start working?
128 Which commit added the first to match this regex?
132 Which commit removed the last to match this regex?
136 usually without needing to know which versions of perl to use as start and
139 By default F<bisect.pl> will process all options, then use the rest of the
140 command line as arguments to list C<system> to run a test case. By default,
141 the test case should pass (exit with 0) on earlier perls, and fail (exit
142 non-zero) on I<blead>. F<bisect.pl> will use F<bisect-runner.pl> to find the
143 earliest stable perl version on which the test case passes, check that it
144 fails on blead, and then use F<bisect-runner.pl> with C<git bisect run> to
145 find the commit which caused the failure.
147 Because the test case is the complete argument to C<system>, it is easy to
148 run something other than the F<perl> built, if necessary. If you need to run
149 the perl built, you'll probably need to invoke it as C<./perl -Ilib ...>
151 You need a clean checkout to run a bisect, and you can't use the checkout
152 which contains F<Porting/bisect.pl> (because C<git bisect>) will check out
153 a revision before F<Porting/bisect-runner.pl> was added, which
154 C<git bisect run> needs). If your working checkout is called F<perl>, the
155 simplest solution is to make a local clone, and run from that. I<i.e.>:
160 ../perl/Porting/bisect.pl ...
162 By default, F<bisect-runner.pl> will automatically disable the build of
163 L<DB_File> for commits earlier than ccb44e3bf3be2c30, as it's not practical
164 to patch DB_File 1.70 and earlier to build with current Berkeley DB headers.
165 (ccb44e3bf3be2c30 was in September 1999, between 5.005_62 and 5.005_63.)
166 If your F<db.h> is old enough you can override this with C<-Unoextensions>.
174 --start I<commit-ish>
176 Earliest revision to test, as a I<commit-ish> (a tag, commit or anything
177 else C<git> understands as a revision). If not specified, F<bisect.pl> will
178 search stable perl releases from 5.002 to 5.14.0 until it finds one where
179 the test case passes.
185 Most recent revision to test, as a I<commit-ish>. If not specified, defaults
192 F<Makefile> target (or equivalent) needed, to run the test case. If specified,
193 this should be one of
201 Just run F<./Configure>
207 Run the various F<*.SH> files to generate F<Makefile>, F<config.h>, I<etc>.
219 Use F<miniperl> to build F<lib/Config.pm>
225 Build F<lib/auto/Fcntl/Fnctl.so> (strictly, C<.$Config{so}>). As L<Fcntl>
226 is simple XS module present since 5.000, this provides a fast test of
227 whether XS modules can be built. Note, XS modules are built by F<miniperl>,
228 hence this target will not build F<perl>.
234 Build F<perl>. This also builds pure-Perl modules in F<cpan>, F<dist> and
235 F<ext>. XS modules (such as L<Fcntl>) are not built.
241 Build everything needed to run the tests. This is the default if we're
242 running test code, but is time consuming, as it means building all
243 XS modules. For older F<Makefile>s, the previous name of C<test-prep>
244 is automatically substituted. For very old F<Makefile>s, C<make test> is
245 run, as there is no target provided to just get things ready, and for 5.004
246 and earlier the tests run very quickly.
252 --one-liner 'code to run'
258 Example code to run, just like you'd use with C<perl -e>.
260 This prepends C<./perl -Ilib -e 'code to run'> to the test case given,
261 or F<./miniperl> if I<target> is C<miniperl>.
263 (Usually you'll use C<-e> instead of providing a test case in the
264 non-option arguments to F<bisect.pl>)
266 C<-E> intentionally isn't supported, as it's an error in 5.8.0 and earlier,
267 which interferes with detecting errors in the example code itself.
273 The test case should fail for the I<start> revision, and pass for the I<end>
274 revision. The bisect run will find the first commit where it passes.
278 -Dnoextensions=Encode
286 -Accflags=-DNO_MATHOMS
288 Arguments to pass to F<Configure>. Repeated C<-A> arguments are passed
289 through as is. C<-D> and C<-U> are processed in order, and override
290 previous settings for the same parameter. F<bisect-runner.pl> emulates
291 C<-Dnoextensions> when F<Configure> itself does not provide it, as it's
292 often very useful to be able to disable some XS extensions.
302 Number of C<make> jobs to run in parallel. If F</proc/cpuinfo> exists and
303 can be parsed, or F</sbin/sysctl> exists and reports C<hw.ncpu>, or
304 F</usr/bin/getconf> exists and reports C<_NPROCESSORS_ONLN> defaults to 1 +
305 I<number of CPUs>. Otherwise defaults to 2.
311 Instead of running a test program to determine I<pass> or I<fail>, pass
312 if the given regex matches, and hence search for the commit that removes
313 the last matching file.
315 If no I<target> is specified, the match is against all files in the
316 repository (which is fast). If a I<target> is specified, that target is
317 built, and the match is against only the built files. C<--expect-fail> can
318 be used with C<--match> to search for a commit that adds files that match.
324 Test that the build completes, without running any test case.
326 By default, if the build for the desired I<target> fails to complete,
327 F<bisect-runner.pl> reports a I<skip> back to C<git bisect>, the assumption
328 being that one wants to find a commit which changed state "builds && passes"
329 to "builds && fails". If instead one is interested in which commit broke the
330 build (possibly for particular F<Configure> options), use I<--test-build>
331 to treat a build failure as a failure, not a "skip".
333 Often this option isn't as useful as it first seems, because I<any> build
334 failure will be reported to C<git bisect> as a failure, not just the failure
335 that you're interested in. Generally, to debug a particular problem, it's
336 more useful to use a I<target> that builds properly at the point of interest,
337 and then a test case that runs C<make>. For example:
339 .../Porting/bisect.pl --start=perl-5.000 --end=perl-5.002 \
340 --expect-fail --force-manifest --target=miniperl make perl
342 will find the first revision capable of building L<DynaLoader> and then
343 F<perl>, without becoming confused by revisions where F<miniperl> won't
350 By default, a build will "skip" if any files listed in F<MANIFEST> are not
351 present. Usually this is useful, as it avoids false-failures. However, there
352 are some long ranges of commits where listed files are missing, which can
353 cause a bisect to abort because all that remain are skipped revisions.
355 In these cases, particularly if the test case uses F<miniperl> and no modules,
356 it may be more useful to force the build to continue, even if files
357 F<MANIFEST> are missing.
363 C<--expect-pass=0> is equivalent to C<--expect-fail>. I<1> is the default.
369 Tell F<bisect-runner.pl> not to clean up after the build. This allows one
370 to use F<bisect-runner.pl> to build the current particular perl revision for
371 interactive testing, or for debugging F<bisect-runner.pl>.
373 Passing this to F<bisect.pl> will likely cause the bisect to fail badly.
379 Validate the options and arguments, and exit silently if they are valid.
393 Display the usage information and exit.
399 die "$0: Can't build $target" if defined $target && !grep {@targets} $target;
401 $j = "-j$j" if $j =~ /\A\d+\z/;
403 # Sadly, however hard we try, I don't think that it will be possible to build
404 # modules in ext/ on x86_64 Linux before commit e1666bf5602ae794 on 1999/12/29,
405 # which updated to MakeMaker 3.7, which changed from using a hard coded ld
406 # in the Makefile to $(LD). On x86_64 Linux the "linker" is gcc.
408 sub extract_from_file {
409 my ($file, $rx, $default) = @_;
410 open my $fh, '<', $file or die "Can't open $file: $!";
413 return wantarray ? @got : $got[0]
416 return $default if defined $default;
421 my ($file, $munger) = @_;
423 open my $fh, '<', $file or die "Can't open $file: $!";
425 die "Can't read $file: $!" unless defined $orig && close $fh;
426 my $new = $munger->($orig);
427 return if $new eq $orig;
428 open $fh, '>', $file or die "Can't open $file: $!";
429 print $fh $new or die "Can't print to $file: $!";
430 close $fh or die "Can't close $file: $!";
436 my ($file) = $patch =~ qr!^diff.*a/(\S+) b/\1!;
437 open my $fh, '|-', 'patch', '-p1' or die "Can't run patch: $!";
440 print STDERR "Patch is <<'EOPATCH'\n${patch}EOPATCH\n";
441 die "Can't patch $file: $?, $!";
445 if ($options{clean}) {
446 # Needed, because files that are build products in this checked out
447 # version might be in git in the next desired version.
448 system 'git clean -dxf </dev/null';
449 # Needed, because at some revisions the build alters checked out files.
450 # (eg pod/perlapi.pod). Also undoes any changes to makedepend.SH
451 system 'git reset --hard HEAD </dev/null';
458 warn "skipping - $reason";
462 sub report_and_exit {
463 my ($ret, $pass, $fail, $desc) = @_;
467 my $got = ($options{'expect-pass'} ? !$ret : $ret) ? 'good' : 'bad';
469 print "$got - $fail $desc\n";
471 print "$got - $pass $desc\n";
485 @files = defined $target ? `git ls-files -o -z`: `git ls-files -z`;
489 foreach my $file (@files) {
490 open my $fh, '<', $file or die "Can't open $file: $!";
494 if (tr/\t\r\n -~\200-\377//c) {
495 print "Binary file $file matches\n";
497 $_ .= "\n" unless /\n\z/;
502 close $fh or die "Can't close $file: $!";
504 report_and_exit(!$matches,
505 $matches == 1 ? '1 match for' : "$matches matches for",
506 'no matches for', $match);
509 # Not going to assume that system perl is yet new enough to have autodie
510 system 'git clean -dxf </dev/null' and die;
512 if (!defined $target) {
513 match_and_exit() if $match;
514 $target = 'test_prep';
517 skip('no Configure - is this the //depot/perlext/Compiler branch?')
518 unless -f 'Configure';
520 # This changes to PERL_VERSION in 4d8076ea25903dcb in 1999
522 = extract_from_file('patchlevel.h',
523 qr/^#define\s+(?:PERL_VERSION|PATCHLEVEL)\s+(\d+)\s/,
527 if (extract_from_file('Configure',
528 qr/^ \*=\*\) echo "\$1" >> \$optdef;;$/)) {
529 # This is " Spaces now allowed in -D command line options.",
530 # part of commit ecfc54246c2a6f42
531 apply_patch(<<'EOPATCH');
532 diff --git a/Configure b/Configure
533 index 3d3b38d..78ffe16 100755
536 @@ -652,7 +777,8 @@ while test $# -gt 0; do
537 echo "$me: use '-U symbol=', not '-D symbol='." >&2
538 echo "$me: ignoring -D $1" >&2
540 - *=*) echo "$1" >> $optdef;;
542 + sed -e "s/'/'\"'\"'/g" -e "s/=\(.*\)/='\1'/" >> $optdef;;
543 *) echo "$1='define'" >> $optdef;;
548 if (extract_from_file('Configure', qr/^if \$contains 'd_namlen' \$xinc\b/)) {
549 # Configure's original simple "grep" for d_namlen falls foul of the
550 # approach taken by the glibc headers:
551 # #ifdef _DIRENT_HAVE_D_NAMLEN
552 # # define _D_EXACT_NAMLEN(d) ((d)->d_namlen)
554 # where _DIRENT_HAVE_D_NAMLEN is not defined on Linux.
555 # This is also part of commit ecfc54246c2a6f42
556 apply_patch(<<'EOPATCH');
557 diff --git a/Configure b/Configure
558 index 3d3b38d..78ffe16 100755
561 @@ -3935,7 +4045,8 @@ $rm -f try.c
563 : see if the directory entry stores field length
565 -if $contains 'd_namlen' $xinc >/dev/null 2>&1; then
566 +$cppstdin $cppflags $cppminus < "$xinc" > try.c
567 +if $contains 'd_namlen' try.c >/dev/null 2>&1; then
568 echo "Good, your directory entry keeps length information in d_namlen." >&4
575 if ($major < 8 && !extract_from_file('Configure',
576 qr/^\t\tif test ! -t 0; then$/)) {
577 # Before dfe9444ca7881e71, Configure would refuse to run if stdin was not a
578 # tty. With that commit, the tty requirement was dropped for -de and -dE
579 # Commit aaeb8e512e8e9e14 dropped the tty requirement for -S
580 # For those older versions, it's probably easiest if we simply remove the
582 edit_file('Configure', sub {
584 $code =~ s/test ! -t 0/test Perl = rules/;
589 if ($major < 10 && extract_from_file('Configure', qr/^set malloc\.h i_malloc$/)) {
590 # This is commit 01d07975f7ef0e7d, trimmed, with $compile inlined as
591 # prior to bd9b35c97ad661cc Configure had the malloc.h test before the
592 # definition of $compile.
593 apply_patch(<<'EOPATCH');
594 diff --git a/Configure b/Configure
595 index 3d2e8b9..6ce7766 100755
598 @@ -6743,5 +6743,22 @@ set d_dosuid
600 : see if this is a malloc.h system
601 -set malloc.h i_malloc
603 +: we want a real compile instead of Inhdr because some systems have a
604 +: malloc.h that just gives a compile error saying to use stdlib.h instead
609 +int main () { return 0; }
612 +if $cc $optimize $ccflags $ldflags -o try $* try.c $libs > /dev/null 2>&1; then
613 + echo "<malloc.h> found." >&4
616 + echo "<malloc.h> NOT found." >&4
626 # Cwd.xs added in commit 0d2079faa739aaa9. Cwd.pm moved to ext/ 8 years later
627 # in commit 403f501d5b37ebf0
628 if ($major > 0 && <*/Cwd/Cwd.xs>) {
629 if ($major < 10 && !extract_from_file('Makefile.SH', qr/^extra_dep=''$/)) {
630 # The Makefile.PL for Unicode::Normalize needs
631 # lib/unicore/CombiningClass.pl. Even without a parallel build, we need
632 # a dependency to ensure that it builds. This is a variant of commit
633 # 9f3ef600c170f61e. Putting this for earlier versions gives us a spot
634 # on which to hang the edits below
635 apply_patch(<<'EOPATCH');
636 diff --git a/Makefile.SH b/Makefile.SH
637 index f61d0db..6097954 100644
640 @@ -155,10 +155,20 @@ esac
642 : Prepare dependency lists for Makefile.
645 for f in $dynamic_ext; do
646 : the dependency named here will never exist
647 base=`echo "$f" | sed 's/.*\///'`
648 - dynamic_list="$dynamic_list lib/auto/$f/$base.$dlext"
649 + this_target="lib/auto/$f/$base.$dlext"
650 + dynamic_list="$dynamic_list $this_target"
652 + : Parallel makes reveal that we have some interdependencies
654 + Math/BigInt/FastCalc) extra_dep="$extra_dep
655 +$this_target: lib/auto/List/Util/Util.$dlext" ;;
656 + Unicode/Normalize) extra_dep="$extra_dep
657 +$this_target: lib/unicore/CombiningClass.pl" ;;
662 @@ -987,2 +997,9 @@ n_dummy $(nonxs_ext): miniperl$(EXE_EXT) preplibrary $(DYNALOADER) FORCE
663 @$(LDLIBPTH) sh ext/util/make_ext nonxs $@ MAKE=$(MAKE) LIBPERL_A=$(LIBPERL)
666 +$spitshell >>Makefile <<EOF
670 +$spitshell >>Makefile <<'!NO!SUBS!'
675 # Commits dc0655f797469c47 and d11a62fe01f2ecb2
676 edit_file('Makefile.SH', sub {
678 foreach my $ext (qw(Encode SDBM_File)) {
679 next if $code =~ /\b$ext\) extra_dep=/s;
680 $code =~ s!(\) extra_dep="\$extra_dep
681 \$this_target: .*?" ;;)
684 $ext) extra_dep="\$extra_dep
685 \$this_target: lib/auto/Cwd/Cwd.\$dlext" ;;
693 # Remove commits 9fec149bb652b6e9 and 5bab1179608f81d8, which add/amend
694 # rules to automatically run regen scripts that rebuild C headers. These
695 # cause problems because a git checkout doesn't preserve relative file
696 # modification times, hence the regen scripts may fire. This will obscure
697 # whether the repository had the correct generated headers checked in.
698 # Also, the dependency rules for running the scripts were not correct,
699 # which could cause spurious re-builds on re-running make, and can cause
700 # complete build failures for a parallel make.
701 if (extract_from_file('Makefile.SH',
702 qr/Writing it this way gives make a big hint to always run opcode\.pl before/)) {
703 system 'git show 70c6e6715e8fec53 | patch -p1'
705 } elsif (extract_from_file('Makefile.SH',
706 qr/^opcode\.h opnames\.h pp_proto\.h pp\.sym: opcode\.pl$/)) {
707 system 'git show 9fec149bb652b6e9 | patch -p1 -R'
712 # There was a bug in makedepend.SH which was fixed in version 96a8704c.
713 # Symptom was './makedepend: 1: Syntax error: Unterminated quoted string'
714 # Remove this if you're actually bisecting a problem related to makedepend.SH
715 system 'git show blead:makedepend.SH > makedepend.SH </dev/null' and die;
717 if ($^O eq 'freebsd') {
718 # There are rather too many version-specific FreeBSD hints fixes to patch
719 # individually. Also, more than once the FreeBSD hints file has been
720 # written in what turned out to be a rather non-future-proof style,
721 # with case statements treating the most recent version as the exception,
722 # instead of treating previous versions' behaviour explicitly and changing
723 # the default to cater for the current behaviour. (As strangely, future
724 # versions inherit the current behaviour.)
725 system 'git show blead:hints/freebsd.sh > hints/freebsd.sh </dev/null'
729 # 5.002 Configure and later have code to
731 # : Try to guess additional flags to pick up local libraries.
733 # which will automatically add --L/usr/local/lib because libpth
734 # contains /usr/local/lib
736 # Without it, if Configure finds libraries in /usr/local/lib (eg
737 # libgdbm.so) and adds them to the compiler commandline (as -lgdbm),
738 # then the link will fail. We can't fix this up in config.sh because
739 # the link will *also* fail in the test compiles that Configure does
740 # (eg $inlibc) which makes Configure get all sorts of things
741 # wrong. :-( So bodge it here.
743 # Possibly other platforms will need something similar. (if they
744 # have "wanted" libraries in /usr/local/lib, but the compiler
745 # doesn't default to putting that directory in its link path)
746 apply_patch(<<'EOPATCH');
747 --- perl2/hints/freebsd.sh.orig 2011-10-05 16:44:55.000000000 +0200
748 +++ perl2/hints/freebsd.sh 2011-10-05 16:45:52.000000000 +0200
751 libpth="/usr/lib /usr/local/lib"
752 glibpth="/usr/lib /usr/local/lib"
754 + ldflags="-Wl,-E -L/usr/local/lib "
757 cccdlflags='-DPIC -fPIC'
760 libpth="/usr/lib /usr/local/lib"
761 glibpth="/usr/lib /usr/local/lib"
763 + ldflags="-Wl,-E -L/usr/local/lib "
765 cccdlflags='-DPIC -fPIC'
769 } elsif ($^O eq 'darwin') {
772 # We can't build on darwin without some of the data in the hints file.
773 foreach ('ext/DynaLoader/dl_dyld.xs', 'hints/darwin.sh') {
776 # Probably less surprising to use the earliest version of
777 # hints/darwin.sh and then edit in place just below, than use
778 # blead's version, as that would create a discontinuity at
779 # f556e5b971932902 - before it, hints bugs would be "fixed", after
780 # it they'd resurface. This way, we should give the illusion of
781 # monotonic bug fixing.
782 system "git show f556e5b971932902:$_ >$_"
783 and die "while attempting to extract $_";
786 apply_patch(<<'EOPATCH');
787 diff -u a/ext/DynaLoader/dl_dyld.xs~ a/ext/DynaLoader/dl_dyld.xs
788 --- a/ext/DynaLoader/dl_dyld.xs~ 2011-10-11 21:41:27.000000000 +0100
789 +++ b/ext/DynaLoader/dl_dyld.xs 2011-10-11 21:42:20.000000000 +0100
803 +# define dTHXa(a) extern int Perl___notused(void)
804 +# define dTHX extern int Perl___notused(void)
807 +#ifndef Perl_form_nocontext
808 +# define Perl_form_nocontext form
811 +#ifndef Perl_warn_nocontext
812 +# define Perl_warn_nocontext warn
816 +# define PTR2IV(p) (IV)(p)
820 +# define get_av perl_get_av
823 #define DL_LOADONCEONLY
825 #include "dlutils.c" /* SaveError() etc */
828 DLDEBUG(1,PerlIO_printf(Perl_debug_log, "dl_load_file(%s,%x):\n", filename,flags));
830 - Perl_warn(aTHX_ "Can't make loaded symbols global on this platform while loading %s",filename);
831 + Perl_warn_nocontext("Can't make loaded symbols global on this platform while loading %s",filename);
832 RETVAL = dlopen(filename, mode) ;
833 DLDEBUG(2,PerlIO_printf(Perl_debug_log, " libref=%x\n", RETVAL));
834 ST(0) = sv_newmortal() ;
836 if ($major < 4 && !extract_from_file('util.c', qr/^form/m)) {
837 apply_patch(<<'EOPATCH');
838 diff -u a/ext/DynaLoader/dl_dyld.xs~ a/ext/DynaLoader/dl_dyld.xs
839 --- a/ext/DynaLoader/dl_dyld.xs~ 2011-10-11 21:56:25.000000000 +0100
840 +++ b/ext/DynaLoader/dl_dyld.xs 2011-10-11 22:00:00.000000000 +0100
842 # define get_av perl_get_av
846 +form(char *pat, ...)
850 + va_start(args, pat);
851 + vasprintf(&retval, pat, &args);
853 + SAVEFREEPV(retval);
857 #define DL_LOADONCEONLY
859 #include "dlutils.c" /* SaveError() etc */
864 edit_file('hints/darwin.sh', sub {
866 # Part of commit 8f4f83badb7d1ba9, which mostly undoes
867 # commit 0511a818910f476c.
868 $code =~ s/^cppflags='-traditional-cpp';$/cppflags="\${cppflags} -no-cpp-precomp"/m;
869 # commit 14c11978e9b52e08/803bb6cc74d36a3f
870 # Without this, code in libperl.bundle links against op.o
871 # in preference to opmini.o on the linker command line,
872 # and hence miniperl tries to use File::Glob instead of
874 $code =~ s/^(lddlflags=)/ldflags="\${ldflags} -flat_namespace"\n$1/m;
875 # f556e5b971932902 also patches Makefile.SH with some
876 # special case code to deal with useshrplib for darwin.
877 # Given that post 5.8.0 the darwin hints default was
878 # changed to false, and it would be very complex to splice
879 # in that code in various versions of Makefile.SH back
880 # to 5.002, lets just turn it off.
881 $code =~ s/^useshrplib='true'/useshrplib='false'/m
886 } elsif ($^O eq 'netbsd') {
888 # These are part of commit 099685bc64c7dbce
889 edit_file('hints/netbsd.sh', sub {
897 if [ -f /usr/libexec/ld.elf_so ]; then
900 ccdlflags="-Wl,-E -Wl,-R${PREFIX}/lib $ccdlflags"
901 cccdlflags="-DPIC -fPIC $cccdlflags"
902 lddlflags="--whole-archive -shared $lddlflags"
903 elif [ "`uname -m`" = "pmax" ]; then
904 # NetBSD 1.3 and 1.3.1 on pmax shipped an `old' ld.so, which will not work.
906 elif [ -f /usr/libexec/ld.so ]; then
909 ccdlflags="-Wl,-R${PREFIX}/lib $ccdlflags"
910 # we use -fPIC here because -fpic is *NOT* enough for some of the
911 # extensions like Tk on some netbsd platforms (the sparc is one)
912 cccdlflags="-DPIC -fPIC $cccdlflags"
913 lddlflags="-Bforcearchive -Bshareable $lddlflags"
920 $code =~ s/^case "\$osvers" in\n0\.9\|0\.8.*?^esac\n/$fixed/ms;
923 if (!extract_from_file('unixish.h',
924 qr/defined\(NSIG\).*defined\(__NetBSD__\)/)) {
925 apply_patch(<<'EOPATCH')
926 diff --git a/unixish.h b/unixish.h
927 index 2a6cbcd..eab2de1 100644
932 /* #define ALTERNATE_SHEBANG "#!" / **/
934 -#if !defined(NSIG) || defined(M_UNIX) || defined(M_XENIX)
935 +#if !defined(NSIG) || defined(M_UNIX) || defined(M_XENIX) || defined(__NetBSD__)
945 if (!extract_from_file('ext/DB_File/DB_File.xs',
946 qr!^#else /\* Berkeley DB Version > 2 \*/$!)) {
947 # This DB_File.xs is really too old to patch up.
948 # Skip DB_File, unless we're invoked with an explicit -Unoextensions
949 if (!exists $defines{noextensions}) {
950 $defines{noextensions} = 'DB_File';
951 } elsif (defined $defines{noextensions}) {
952 $defines{noextensions} .= ' DB_File';
954 } elsif (!extract_from_file('ext/DB_File/DB_File.xs',
955 qr/^#ifdef AT_LEAST_DB_4_1$/)) {
956 # This line is changed by commit 3245f0580c13b3ab
957 my $line = extract_from_file('ext/DB_File/DB_File.xs',
958 qr/^( status = \(?RETVAL->dbp->open\)?\(RETVAL->dbp, name, NULL, RETVAL->type, $)/);
959 apply_patch(<<"EOPATCH");
960 diff --git a/ext/DB_File/DB_File.xs b/ext/DB_File/DB_File.xs
961 index 489ba96..fba8ded 100644
962 --- a/ext/DB_File/DB_File.xs
963 +++ b/ext/DB_File/DB_File.xs
964 \@\@ -183,4 +187,8 \@\@
967 +#if DB_VERSION_MAJOR > 4 || (DB_VERSION_MAJOR == 4 && DB_VERSION_MINOR >= 1)
968 +# define AT_LEAST_DB_4_1
971 /* map version 2 features & constants onto their version 1 equivalent */
973 \@\@ -1334,7 +1419,12 \@\@ SV * sv ;
976 +#ifdef AT_LEAST_DB_4_1
977 + status = (RETVAL->dbp->open)(RETVAL->dbp, NULL, name, NULL, RETVAL->type,
983 /* printf("open returned %d %s\\n", status, db_strerror(status)) ; */
989 # if Encode is not needed for the test, you can speed up the bisect by
990 # excluding it from the runs with -Dnoextensions=Encode
991 # ccache is an easy win. Remove it if it causes problems.
992 # Commit 1cfa4ec74d4933da adds ignore_versioned_solibs to Configure, and sets it
993 # to true in hints/linux.sh
994 # On dromedary, from that point on, Configure (by default) fails to find any
995 # libraries, because it scans /usr/local/lib /lib /usr/lib, which only contain
996 # versioned libraries. Without -lm, the build fails.
997 # Telling /usr/local/lib64 /lib64 /usr/lib64 works from that commit onwards,
998 # until commit faae14e6e968e1c0 adds it to the hints.
999 # However, prior to 1cfa4ec74d4933da telling Configure the truth doesn't work,
1000 # because it will spot versioned libraries, pass them to the compiler, and then
1001 # bail out pretty early on. Configure won't let us override libswanted, but it
1002 # will let us override the entire libs list.
1004 unless (extract_from_file('Configure', 'ignore_versioned_solibs')) {
1005 # Before 1cfa4ec74d4933da, so force the libs list.
1008 # This is the current libswanted list from Configure, less the libs removed
1009 # by current hints/linux.sh
1010 foreach my $lib (qw(sfio socket inet nsl nm ndbm gdbm dbm db malloc dl dld
1011 ld sun m crypt sec util c cposix posix ucb BSD)) {
1012 foreach my $dir (@paths) {
1013 next unless -f "$dir/lib$lib.so";
1014 push @libs, "-l$lib";
1018 $defines{libs} = \@libs unless exists $defines{libs};
1021 $defines{usenm} = undef
1022 if $major < 2 && !exists $defines{usenm};
1024 my (@missing, @created_dirs);
1026 if ($options{'force-manifest'}) {
1027 open my $fh, '<', 'MANIFEST'
1028 or die "Could not open MANIFEST: $!";
1030 next unless /^(\S+)/;
1034 close $fh or die "Can't close MANIFEST: $!";
1036 foreach my $pathname (@missing) {
1037 my @parts = split '/', $pathname;
1038 my $leaf = pop @parts;
1041 $path .= '/' . shift @parts;
1043 mkdir $path, 0700 or die "Can't create $path: $!";
1044 unshift @created_dirs, $path;
1046 open $fh, '>', $pathname or die "Can't open $pathname: $!";
1047 close $fh or die "Can't close $pathname: $!";
1048 chmod 0, $pathname or die "Can't chmod 0 $pathname: $!";
1053 foreach my $key (sort keys %defines) {
1054 my $val = $defines{$key};
1056 push @ARGS, "-D$key=@$val";
1057 } elsif (!defined $val) {
1058 push @ARGS, "-U$key";
1059 } elsif (!length $val) {
1060 push @ARGS, "-D$key";
1062 $val = "" if $val eq "\0";
1063 push @ARGS, "-D$key=$val";
1066 push @ARGS, map {"-A$_"} @{$options{A}};
1068 # </dev/null because it seems that some earlier versions of Configure can
1069 # call commands in a way that now has them reading from stdin (and hanging)
1071 die "Can't fork: $!" unless defined $pid;
1073 open STDIN, '<', '/dev/null';
1074 # If a file in MANIFEST is missing, Configure asks if you want to
1075 # continue (the default being 'n'). With stdin closed or /dev/null,
1076 # it exits immediately and the check for config.sh below will skip.
1077 exec './Configure', @ARGS;
1078 die "Failed to start Configure: $!";
1081 or die "wait for Configure, pid $pid failed: $!";
1083 # Emulate noextensions if Configure doesn't support it.
1084 if (-f 'config.sh') {
1085 if ($major < 10 && $defines{noextensions}) {
1086 edit_file('config.sh', sub {
1087 my @lines = split /\n/, shift;
1088 my @ext = split /\s+/, $defines{noextensions};
1090 next unless /^extensions=/ || /^dynamic_ext/;
1091 foreach my $ext (@ext) {
1095 return join "\n", @lines;
1098 if ($major < 4 && !extract_from_file('config.sh', qr/^trnl=/)) {
1099 # This seems to be necessary to avoid makedepend becoming confused,
1100 # and hanging on stdin. Seems that the code after
1101 # make shlist || ...here... is never run.
1102 edit_file('makedepend.SH', sub {
1104 $code =~ s/^trnl='\$trnl'$/trnl='\\n'/m;
1109 system './Configure -S </dev/null' and die;
1112 if ($target =~ /config\.s?h/) {
1113 match_and_exit($target) if $match && -f $target;
1114 report_and_exit(!-f $target, 'could build', 'could not build', $target)
1115 if $options{'test-build'};
1117 my $ret = system @ARGV;
1118 report_and_exit($ret, 'zero exit from', 'non-zero exit from', "@ARGV");
1119 } elsif (!-f 'config.sh') {
1120 # Skip if something went wrong with Configure
1122 skip('could not build config.sh');
1125 # This is probably way too paranoid:
1129 foreach my $file (@missing) {
1130 my (undef, undef, $mode, undef, undef, undef, undef, $size)
1132 if (!defined $mode) {
1133 push @errors, "Added file $file has been deleted by Configure";
1136 if (Fcntl::S_IMODE($mode) != 0) {
1138 sprintf 'Added file %s had mode changed by Configure to %03o',
1143 "Added file $file had sized changed by Configure to $size";
1145 unlink $file or die "Can't unlink $file: $!";
1147 foreach my $dir (@created_dirs) {
1148 rmdir $dir or die "Can't rmdir $dir: $!";
1154 # Correct makefile for newer GNU gcc
1155 # Only really needed if you comment out the use of blead's makedepend.SH
1158 local @ARGV = qw(makefile x2p/makefile);
1160 print unless /<(?:built-in|command|stdin)/;
1164 if ($major == 2 && extract_from_file('perl.c', qr/^ fclose\(e_fp\);$/)) {
1165 # need to patch perl.c to avoid calling fclose() twice on e_fp when using -e
1166 # This diff is part of commit ab821d7fdc14a438. The second close was
1167 # introduced with perl-5.002, commit a5f75d667838e8e7
1168 # Might want a6c477ed8d4864e6 too, for the corresponding change to pp_ctl.c
1169 # (likely without this, eval will have "fun")
1170 apply_patch(<<'EOPATCH');
1171 diff --git a/perl.c b/perl.c
1172 index 03c4d48..3c814a2 100644
1175 @@ -252,6 +252,7 @@ setuid perl scripts securely.\n");
1176 #ifndef VMS /* VMS doesn't have environ array */
1177 origenviron = environ;
1179 + e_tmpname = Nullch;
1183 @@ -405,6 +406,7 @@ setuid perl scripts securely.\n");
1185 if (Fflush(e_fp) || ferror(e_fp) || fclose(e_fp))
1186 croak("Can't write to temp file for -e: %s", Strerror(errno));
1189 scriptname = e_tmpname;
1191 @@ -470,10 +472,10 @@ setuid perl scripts securely.\n");
1192 curcop->cop_line = 0;
1193 curstash = defstash;
1199 (void)UNLINK(e_tmpname);
1200 + Safefree(e_tmpname);
1201 + e_tmpname = Nullch;
1204 /* now that script is parsed, we can modify record separator */
1205 @@ -1369,7 +1371,7 @@ SV *sv;
1206 scriptname = xfound;
1209 - origfilename = savepv(e_fp ? "-e" : scriptname);
1210 + origfilename = savepv(e_tmpname ? "-e" : scriptname);
1211 curcop->cop_filegv = gv_fetchfile(origfilename);
1212 if (strEQ(origfilename,"-"))
1218 if ($major < 10 and -f 'ext/IPC/SysV/SysV.xs') {
1219 edit_file('ext/IPC/SysV/SysV.xs', sub {
1221 my $fixed = <<'EOFIX';
1223 #include <sys/types.h>
1224 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
1226 # include <sys/ipc.h>
1229 # include <sys/msg.h>
1232 # if defined(PERL_SCO) || defined(PERL_ISC)
1233 # include <sys/sysmacros.h> /* SHMLBA */
1235 # include <sys/shm.h>
1236 # ifndef HAS_SHMAT_PROTOTYPE
1237 extern Shmat_t shmat (int, char *, int);
1239 # if defined(HAS_SYSCONF) && defined(_SC_PAGESIZE)
1240 # undef SHMLBA /* not static: determined at boot time */
1241 # define SHMLBA sysconf(_SC_PAGESIZE)
1242 # elif defined(HAS_GETPAGESIZE)
1243 # undef SHMLBA /* not static: determined at boot time */
1244 # define SHMLBA getpagesize()
1250 #include <sys/types\.h>
1252 (#ifdef newCONSTSUB|/\* Required)!$fixed$1!ms;
1257 if (-f 'ext/POSIX/Makefile.PL'
1258 && extract_from_file('ext/POSIX/Makefile.PL',
1259 qr/Explicitly avoid including/)) {
1260 # commit 6695a346c41138df, which effectively reverts 170888cff5e2ffb7
1262 # PERL5LIB is populated by make_ext.pl with paths to the modules we need
1263 # to run, don't override this with "../../lib" since that may not have
1264 # been populated yet in a parallel build.
1265 apply_patch(<<'EOPATCH');
1266 diff --git a/ext/POSIX/Makefile.PL b/ext/POSIX/Makefile.PL
1267 index 392b6fb..9e6d091 100644
1268 --- a/ext/POSIX/Makefile.PL
1269 +++ b/ext/POSIX/Makefile.PL
1271 -# Explicitly avoid including '.' in @INC; autoloader gets confused since it
1272 -# can find POSIX.pm, but can't find autosplit.ix.
1273 -BEGIN { @INC = '../../lib';}
1275 use ExtUtils::MakeMaker;
1276 use ExtUtils::Constant 0.11 'WriteConstants';
1281 # Parallel build for miniperl is safe
1282 system "make $j miniperl </dev/null";
1284 my $expected = $target =~ /^test/ ? 't/perl'
1285 : $target eq 'Fcntl' ? "lib/auto/Fcntl/Fcntl.$Config{so}"
1287 my $real_target = $target eq 'Fcntl' ? $expected : $target;
1289 if ($target ne 'miniperl') {
1290 # Nearly all parallel build issues fixed by 5.10.0. Untrustworthy before that.
1291 $j = '' if $major < 10;
1293 if ($real_target eq 'test_prep') {
1295 # test-prep was added in 5.004_01, 3e3baf6d63945cb6.
1296 # renamed to test_prep in 2001 in 5fe84fd29acaf55c.
1297 # earlier than that, just make test. It will be fast enough.
1298 $real_target = extract_from_file('Makefile.SH',
1299 qr/^(test[-_]prep):/,
1304 system "make $j $real_target </dev/null";
1307 my $missing_target = $expected =~ /perl$/ ? !-x $expected : !-r $expected;
1309 if ($options{'test-build'}) {
1310 report_and_exit($missing_target, 'could build', 'could not build',
1312 } elsif ($missing_target) {
1313 skip("could not build $real_target");
1316 match_and_exit($real_target) if $match;
1318 if (defined $options{'one-liner'}) {
1319 my $exe = $target =~ /^(?:perl$|test)/ ? 'perl' : 'miniperl';
1320 unshift @ARGV, "./$exe", '-Ilib', '-e', $options{'one-liner'};
1323 # This is what we came here to run:
1325 if (exists $Config{ldlibpthname}) {
1327 my $varname = $Config{ldlibpthname};
1328 my $cwd = Cwd::getcwd();
1329 if (defined $ENV{$varname}) {
1330 $ENV{$varname} = $cwd . $Config{path_sep} . $ENV{$varname};
1332 $ENV{$varname} = $cwd;
1336 my $ret = system @ARGV;
1338 report_and_exit($ret, 'zero exit from', 'non-zero exit from', "@ARGV");
1341 # cperl-indent-level: 4
1342 # indent-tabs-mode: nil
1345 # ex: set ts=8 sts=4 sw=4 et: