Cross-compiled perl fails due to missing '-fwrapv -fno-strict-aliasing' flags during cross-compilation. These should be appended by the cross build system but due to the parameters that the perl ebuild passes this is not done. Reproducible: Always Steps to Reproduce: 1. emerge crossdev 2. crossdev -t x86_64-cros-linux-gnu 3. echo 'sys-libs/glibc-2.33' >/usr/x86_64-cros-linux-gnu/etc/portage/profile/package.provided 4. emerge-x86_64-cros-linux-gnu perl 5. mount --bind /dev /usr/x86_64-cros-linux-gnu/dev 6. chroot /usr/x86_64-cros-linux-gnu perl -V Actual Results: perl: warning: Setting locale failed. perl: warning: Please check that your locale settings: LANGUAGE = (unset), LC_ALL = (unset), LANG = "C.UTF-8" are supported and installed on your system. perl: warning: Falling back to the standard locale ("C"). Attempt to free unreferenced scalar: SV 0x563f6520c708 at /usr/lib/perl5/5.34/strict.pm line 38. Segmentation fault (core dumped) Expected Results: perl: warning: Setting locale failed. perl: warning: Please check that your locale settings: LANGUAGE = (unset), LC_ALL = (unset), LANG = "C.UTF-8" are supported and installed on your system. perl: warning: Falling back to the standard locale ("C"). Summary of my perl5 (revision 5 version 34 subversion 0) configuration: Platform: osname=linux osvers=current archname=x86_64-linux uname='' config_args='--target=x86_64-cros-linux-gnu --build=x86_64-pc-linux-gnu -Dinstallprefix= -Dinstallusrbinperl=undef -Dusevendorprefix=define -Ui_xlocale -Ui_ndbm -Ui_gdbm -Ui_db -DDEBUGGING=none -Dnoextensions=ODBM_File GDBM_File NDBM_File -Duseshrplib -Darchname=x86_64-linux -Dcc=x86_64-cros-linux-gnu-gcc -Dar=x86_64-cros-linux-gnu-ar -Dnm=x86_64-cros-linux-gnu-nm -Dcpp=x86_64-cros-linux-gnu-gcc -E -Dranlib=x86_64-cros-linux-gnu-ranlib -Doptimize=-O2 -pipe -fomit-frame-pointer -fwrapv -fno-strict-aliasing -Dldflags= -Dprefix=/usr -Dsiteprefix=/usr/local -Dvendorprefix=/usr -Dscriptdir=/usr/bin -Dprivlib=/usr/lib/perl5/5.34 -Darchlib=/usr/lib/perl5/5.34/x86_64-linux -Dsitelib=/usr/local/lib/perl5/5.34 -Dsitearch=/usr/local/lib/perl5/5.34/x86_64-linux -Dvendorlib=/usr/lib/perl5/vendor_perl/5.34 -Dvendorarch=/usr/lib/perl5/vendor_perl/5.34/x86_64-linux -Dman1dir=/usr/share/man/man1 -Dman3dir=/usr/share/man/man3 -Dsiteman1dir=/usr/local/man/man1 -Dsiteman3dir=/usr/local/man/man3 -Dvendorman1dir=/usr/share/man/man1 -Dvendorman3dir=/usr/share/man/man3 -Dman1ext=1 -Dman3ext=3pm -Dlibperl=libperl.so.5.34.0 -Dlocincpth=/usr/include -Dglibpth=/lib /usr/lib -Duselargefiles -Dd_semctl_semun -Dcf_by=Gentoo -Dmyhostname=localhost -Dperladmin=root@localhost -Ud_csh -Dsh=/bin/sh -Dtargetsh=/bin/sh -Uusenm -Ui_xlocale -Ui_ndbm -Ui_gdbm -Ui_db -DDEBUGGING=none -Dnoextensions=ODBM_File GDBM_File NDBM_File --keeplog --mode=target --target=x86_64-cros-linux-gnu --targetarch=x86_64-cros-linux-gnu' hint=default useposix=true d_sigaction=define useithreads=undef usemultiplicity=undef use64bitint=undef use64bitall=undef uselongdouble=undef usemymalloc=n default_inc_excludes_dot=define Compiler: cc='x86_64-cros-linux-gnu-gcc' ccflags ='-O2 -pipe -fomit-frame-pointer -fwrapv -fno-strict-aliasing -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64' optimize='-O2 -pipe -fomit-frame-pointer -fwrapv -fno-strict-aliasing' cppflags='' ccversion='9.4.0' gccversion='9.4.0' gccosandvers='' intsize=4 longsize=8 ptrsize=8 doublesize=8 byteorder=12345678 doublekind=3 d_longlong=define longlongsize=8 d_longdbl=define longdblsize=16 longdblkind=0 ivtype='long' ivsize=8 nvtype='double' nvsize=8 Off_t='off_t' lseeksize=8 alignbytes=8 prototype=define Linker and Libraries: ld='x86_64-cros-linux-gnu-gcc' ldflags ='' libpth=/lib /usr/lib /usr/local/lib libs=-lm -lcrypt -lpthread -ldl perllibs=-lm -lcrypt -ldl libc= so=so useshrplib=true libperl=libperl.so.5.34.0 gnulibc_version='' Dynamic Linking: dlsrc=dl_dlopen.xs dlext=so d_dlsymun=undef ccdlflags='-Wl,-E' cccdlflags='-fPIC -Wno-unused-function' lddlflags='-shared' Characteristics of this binary (from libperl): Compile-time options: HAS_TIMES PERLIO_LAYERS PERL_COPY_ON_WRITE PERL_DONT_CREATE_GVSV PERL_MALLOC_WRAP PERL_OP_PARENT PERL_PRESERVE_IVUV USE_LARGE_FILES USE_LOCALE USE_LOCALE_COLLATE USE_LOCALE_CTYPE USE_LOCALE_NUMERIC USE_LOCALE_TIME USE_PERLIO USE_PERL_ATOF Locally applied patches: 0001-Fix-hpux-hints.patch - Fix hpux hints 0002-aix-gcc-detection-and-shared-library-soname-support.patch - aix gcc detection and shared library soname support 0003-cpan-ExtUtils-MakeMaker-drop-PORTAGE_TMPDIR-from-LD_.patch - cpan/ExtUtils-MakeMaker: drop $PORTAGE_TMPDIR from LD_RUN_PATH - Bug: https://bugs.gentoo.org/105054 0004-Remove-rpath-and-append-LDFLAGS-to-lddlflags.patch - Remove -rpath and append LDFLAGS to lddlflags 0005-Add-headers-for-opensolaris.patch - Add headers for opensolaris 0006-List-packaged-patches-in-patchlevel.h.patch - List packaged patches for perl-5.34.0-r2(perl-5.34.0-patches-1) in patchlevel.h - Bug: https://bugs.debian.org/567489 0007-Cleanup-PATH-and-shrpenv.patch - Cleanup PATH and shrpenv 0008-Tweak-enc2xs-to-follow-symlinks-and-ignore-missing-I.patch - Tweak enc2xs to follow symlinks and ignore missing @INC directories. - Bug: https://bugs.debian.org/290336 0009-darwin-Use-CC-to-link.patch - darwin: Use $CC to link - Bug: https://bugs.gentoo.org/297751 0010-Provide-a-sensible-INSTALLDIRS-default-for-modules-i.patch - Provide a sensible INSTALLDIRS default for modules installed from CPAN. 0011-Fix-interix-hints.patch - Fix interix hints 0012-Set-libperl-soname.patch - Set libperl soname - Bug: https://bugs.gentoo.org/286840 0013-Add-etc-perl-to-INC.patch - Add /etc/perl to @INC 0014-cpan-ExtUtils-MakeMaker-remove-targets-that-generate.patch - cpan/ExtUtils-MakeMaker: remove targets that generate perllocal.pod 0015-Don-t-force-fstack-protector-on-everyone.patch - Don't force -fstack-protector on everyone - Bug: https://bugs.gentoo.org/348557 0016-Do-not-set-custom-CFLAGS-in-cpan-Digest-SHA.patch - Do not set custom CFLAGS in cpan/Digest-SHA - Bug: https://bugs.gentoo.org/506818 0017-Configure-Don-t-include-sources-in-usr-local-for-com.patch - Configure: Don't include sources in /usr/local/ for compiling perl 0018-cpan-IO-Socket-IP-Disable-network-tests.patch - cpan/IO-Socket-IP: Disable network tests 0019-Fix-EUMM-podlocal-tests.patch - Fix EUMM podlocal tests 0020-Skip-auto-linking-nsl-and-cl.patch - Skip auto-linking nsl and cl - Bug: https://rt.perl.org/Public/Bug/Display.html?id=13148 0021-Disable-porting-tests-which-create-fun-false-failure.patch - Disable porting tests which create fun false-failures all over travis 0022-Disable-PathTools-tests-which-fails-under-sandboxing.patch - Disable PathTools tests which fails under sandboxing - Bug: https://bugs.gentoo.org/645084 0023-Fix-CPAN-FirstTime-defaults-with-nonexisting-site-di.patch - Fix CPAN::FirstTime defaults with nonexisting site dirs if a parent is writable - Bug: https://bugs.debian.org/688842 0024-Pass-LD-settings-through-to-subdirectories.patch - Pass LD settings through to subdirectories - Bug: https://bugs.debian.org/758471 0025-Memoize-Storable-respect-nstore-option-not-respected.patch - Memoize::Storable: respect 'nstore' option not respected - Bug: https://bugs.debian.org/587650 - Bug: https://rt.cpan.org/Public/Bug/Display.html?id=77790 0026-Better-errors-for-man-pages-from-standard-input.patch - Better errors for man pages from standard input - Bug: https://bugs.debian.org/777405 0027-Respect-umask-during-installation.patch - Respect umask during installation 0028-Document-that-CCFLAGS-should-include-Config-ccflags.patch - Document that CCFLAGS should include $Config{ccflags} - Bug: https://bugs.debian.org/628522 - Bug: https://rt.cpan.org/Public/Bug/Display.html?id=68613 0029-Fix-parallel-building.patch - Fix parallel building 0030-Add-support-for-Dgentoolibdirs.patch - Add support for -Dgentoolibdirs Built under linux Compiled at Aug 31 2021 08:28:01 @INC: /etc/perl /usr/local/lib/perl5/5.34/x86_64-linux /usr/local/lib/perl5/5.34 /usr/lib/perl5/vendor_perl/5.34/x86_64-linux /usr/lib/perl5/vendor_perl/5.34 /usr/lib/perl5/5.34/x86_64-linux /usr/lib/perl5/5.34 This https://github.com/arsv/perl-cross/blob/master/cnf/configure_tool.sh#L317 should be responsible for adding the optimize flag, but this https://github.com/arsv/perl-cross/blob/master/cnf/configure__f.sh#L133-L143 causes it to be skipped if optimize is not of the predefined value (empty ""). The config.log shows the following output: Skipping optimize <= -fwrapv -fno-strict-aliasing (args: -O2 -pipe -fomit-frame-pointer -fwrapv -fno-strict-aliasing) Skipping optimize (args: -O2 -pipe -fomit-frame-pointer -fwrapv -fno-strict-aliasing) This is after I already added the correct flags in my CFLAGS; they don't get added as long as CFLAGS is not empty.
The bug has been referenced in the following commit(s): https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=176c1daa9c86574370fdf5ebfd23dd0edd163bdd commit 176c1daa9c86574370fdf5ebfd23dd0edd163bdd Author: Jeremi Piotrowski <jpiotrowski@microsoft.com> AuthorDate: 2021-08-31 08:49:06 +0000 Commit: Sam James <sam@gentoo.org> CommitDate: 2021-09-01 00:48:55 +0000 dev-lang/perl: append required cflags when x-compiling The cross-build system wants to append cflags required by the build to the 'optimize' variable, but doesn't touch the variable when the user overrides it. Since the ebuild passes '-Doptimize="${CFLAGS}"', we are responsible for passing the correct flags, so append '-fwrapv -fno-strict-aliasing' to cflags when we are cross-compiling. Bug: https://bugs.gentoo.org/811237 Reported-by: Github User DRKV333 Signed-off-by: Jeremi Piotrowski <jpiotrowski@microsoft.com> Closes: https://github.com/gentoo/gentoo/pull/22167 Signed-off-by: Sam James <sam@gentoo.org> dev-lang/perl/perl-5.32.1.ebuild | 5 +++++ dev-lang/perl/perl-5.34.0-r1.ebuild | 5 +++++ dev-lang/perl/perl-5.34.0-r2.ebuild | 5 +++++ dev-lang/perl/perl-5.34.0.ebuild | 5 +++++ 4 files changed, 20 insertions(+)
Thanks!
