Created attachment 643554 [details] build.log ... array compare (char*) ................................................ : ok array swap ........................................................... : ok array_free_without_data .............................................. : ok array_free ........................................................... : ok test-backtrace.c:19: Assert failed: backtrace_append(bt) == 0 test-backtrace.c:21: Assert failed: strstr(str_c(bt), "main") != NULL backtrace_append ..................................................... : FAILED test-backtrace.c:43: Assert failed: backtrace_get(&bt) == 0 /bin/sh: line 1: 371 Segmentation fault ./$bin make[4]: *** [Makefile:2756: check-local] Error 1 make[4]: Leaving directory '/var/tmp/portage/net-mail/dovecot-2.3.10.1/work/dovecot-2.3.10.1/src/lib' ---- Portage 2.3.99 (python 3.7.7-final-0, default/linux/arm/17.0/armv6j, gcc-9.3.0, glibc-2.30-r8, 4.19.113-v7+ armv7l) ================================================================= System uname: Linux-4.19.113-v7+-armv7l-ARMv7_Processor_rev_5_-v7l-with-gentoo-2.6 KiB Mem: 948244 total, 122524 free KiB Swap: 4194300 total, 4176288 free Timestamp of repository gentoo: Fri, 05 Jun 2020 15:35:38 +0000 sh bash 5.0_p17 ld GNU ld (Gentoo 2.32 p2) 2.32.0 distcc 3.3.3 armv6j-unknown-linux-gnueabihf [enabled] app-shells/bash: 5.0_p17::gentoo dev-lang/perl: 5.30.1::gentoo dev-lang/python: 2.7.18::gentoo, 3.6.10-r2::gentoo, 3.7.7-r2::gentoo, 3.8.2-r2::gentoo dev-util/cmake: 3.16.5::gentoo dev-util/pkgconfig: 0.29.2::gentoo sys-apps/baselayout: 2.6-r1::gentoo sys-apps/openrc: 0.42.1::gentoo sys-apps/sandbox: 2.13::gentoo sys-devel/autoconf: 2.13-r1::gentoo, 2.69-r4::gentoo sys-devel/automake: 1.13.4-r2::gentoo, 1.15.1-r2::gentoo, 1.16.1-r1::gentoo sys-devel/binutils: 2.30-r2::gentoo, 2.32-r1::gentoo, 2.33.1-r1::gentoo sys-devel/gcc: 9.2.0-r2::gentoo, 9.3.0::gentoo sys-devel/gcc-config: 2.2.1::gentoo sys-devel/libtool: 2.4.6-r6::gentoo sys-devel/make: 4.2.1-r4::gentoo sys-kernel/linux-headers: 5.4::gentoo (virtual/os-headers) sys-libs/glibc: 2.30-r8::gentoo Repositories: gentoo location: /bound/portage sync-type: rsync sync-uri: rsync://rsync.gentoo.org/gentoo-portage priority: -1000 sync-rsync-verify-metamanifest: yes sync-rsync-verify-jobs: 1 sync-rsync-extra-opts: sync-rsync-verify-max-age: 24 ACCEPT_KEYWORDS="arm" ACCEPT_LICENSE="@FREE" CBUILD="armv6j-unknown-linux-gnueabihf" CFLAGS="-O2 -pipe -march=armv6j -mfpu=vfp -mfloat-abi=hard -fdiagnostics-color=always -frecord-gcc-switches -fdiagnostics-show-option -frecord-gcc-switches" CHOST="armv6j-unknown-linux-gnueabihf" CONFIG_PROTECT="/boot/cmdline.txt /boot/config.txt /etc /etc/grs/systems.conf /usr/share/gnupg/qualified.txt /var/qmail/alias /var/qmail/control /var/vpopmail/etc" CONFIG_PROTECT_MASK="/etc/ca-certificates.conf /etc/dconf /etc/env.d /etc/fonts/fonts.conf /etc/gconf /etc/gentoo-release 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userpriv usersandbox usersync xattr" FFLAGS="-O2 -pipe -march=armv6j -mfpu=vfp -mfloat-abi=hard -fdiagnostics-color=always -frecord-gcc-switches" GENTOO_MIRRORS="http://distfiles.gentoo.org" INSTALL_MASK="/usr/share/doc/*/*.pdf /usr/share/man/*/*" LANG="en_GB.utf8" LDFLAGS="-Wl,-O1 -Wl,--as-needed -Wl,--defsym=__gentoo_check_ldflags__=0 -Wl,--hash-style=gnu" LINGUAS="en en_GB en_US" MAKEOPTS="-j4" PKGDIR="/usr/portage/packages" PORTAGE_CONFIGROOT="/" PORTAGE_RSYNC_OPTS="--recursive --links --safe-links --perms --times --omit-dir-times --compress --force --whole-file --delete --stats --human-readable --timeout=180 --exclude=/distfiles --exclude=/local --exclude=/packages --exclude=/.git" PORTAGE_TMPDIR="/var/tmp" USE="acl arm berkdb bzip2 cli crypt dri elogind fortran gdbm iconv ipv6 ncurses nls nptl openmp pam pcre readline seccomp split-usr ssl tcpd unicode xattr zlib" ADA_TARGET="gnat_2018" APACHE2_MODULES="authn_core authz_core socache_shmcb unixd actions alias auth_basic 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Further context: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=962630 Building with USE=unwind fails on 'fake arm' (arm64 box with a linux32 chroot), so need to try on real hardware.
USE="unwind" should work now with net-mail/dovecot-2.3.11.3-r1
(In reply to Eray Aslan from comment #2) > USE="unwind" should work now with net-mail/dovecot-2.3.11.3-r1 I think the "eautoreconf" needs to be uncommented (can drop elibtoolize then?) to make this effective. Since USE=unwind is needed for tests on arm, but not really sure how to enforce this in the ebuild other than adding USE=test then REQUIRED_USE="test? ( arm? ( unwind ) )" which isn't clean. Tests don't pass fully now (backtrace fails, but doesn't segfault, so the others can run!): >test-backtrace.c:14: Assert failed: strstr(str_c(bt), "test_backtrace") != NULL >backtrace_append ..................................................... : FAILED >test-backtrace.c:38: Assert failed: strstr(bt, "test_backtrace") != NULL >backtrace_get ........................................................ : FAILED with "2 / 988 tests failed". This is a graet improvement and I'll report it upstream when I get a chance.
Need to test https://github.com/dovecot/core/commit/4a7f625eedb4bbae564fb773359eec1f6658ede3.
Having run into this problem on riscv earlier on today, here is what I have managed to find out about it. 1. Dovecot backtrace tests do NOT work unless the its executables have been instrumented with unwind tables, regardless of whether Dovecot uses libunwind or libc for this purpose; 2. There are two ways for a modern compiler to add unwind tables to an executable: in static form by using the compiler flag -funwind-tables, or in DWARF form using -fasynchronous-unwind-tables; 3. Both gcc and clang enable generation of asynchronous unwind tables BY DEFAULT on certain arches. Having had a look at gcc sources (in gcc/common/config/), as of 11.1.0 this feature is enabled by default on aarch64, i386 (which covers both x86 and amd64), rs6000, s390, tilegx and tilepro. I've also seen it mentioned on the Internet that Red Hat patches gcc on their distros to enable this on all arches for more consistent backtracing, haven't verified it yet though. PoC covering all of the above: compile dovecot on amd64 with -fno-asynchronous-unwind-tables in CFLAGS and run the test suite. On my system this makes test-backtrace.c start failing regardless of whether I use USE=unwind or not.
This should be fixed in 2.3.15-r1 now - I added 'if on riscv; append -funwind-tables' there during keywording and have just updated it in accordance with my research. Of course if go ahead and change this if you prefer eras, you're the maintainer after all. My poor man's substitute for having forgotten to include the Bug tag in the commit message: commit a4eee8b76225e833d31c9acb155ad0a5354eddc5 Author: Marek Szuba <marecki@gentoo.org> Date: Fri Jul 23 22:15:47 2021 +0000 net-mail/dovecot: use -fasynchronous-unwind-tables, unconditionally Have just confirmed that on riscv asynchronous tables fix test-backtrace errors as well as static ones. Conversely, appending -fno-asynchronous-unwind-tables on amd64 (which is one of the arches for which both gcc and clang enable asynchronous unwind tables by default, IIRC because they've got something to do with stack management) makes the two tests start failing - regardless of whether USE=unwind is enabled or not.
