Bug 921675 – dev-libs/libnl fails to compile on sys-libs/fortify-headers system

• Product: Gentoo Linux
• Status: RESOLVED NEEDINFO

[Description immolo 2024-01-09 15:58:40 UTC]

Created attachment 881789 [details]
Build log

While testing a fortify headers enabled I've found dev-libs/libnl fails to compile. I'm not sure yet if the issue is in this package itself or an issue with bison compiled with fortify-header however, this does compile fine when the headers are disabled.

Steps to reproduce:

1. Enable fortify-headers following - https://wiki.gentoo.org/wiki/User:Immolo/Fortify_Headers
2. emerge -va1 dev-libs/libnl

tmp/portage/dev-libs/libnl-3.9.0/work/libnl-3.9.0/include -I./include -Os -pipe -mcpu=arm1176jzf-s -mfpu=vfp -mfloat-abi=hard -c /var/tmp/portage/dev-libs/libnl-3.9.0/work/libnl-3.9.0/lib/utils.c  -fPIC -DPIC -o lib/.libs/libnl_3_la-utils.o
In file included from /var/tmp/portage/dev-libs/libnl-3.9.0/work/libnl-3.9.0/include/base/nl-base-utils.h:17,
                 from /var/tmp/portage/dev-libs/libnl-3.9.0/work/libnl-3.9.0/include/nl-default.h:8,
                 from /var/tmp/portage/dev-libs/libnl-3.9.0/work/libnl-3.9.0/lib/utils.c:21:
In function 'strncpy',
    inlined from '_nl_strncpy_assert' at /var/tmp/portage/dev-libs/libnl-3.9.0/work/libnl-3.9.0/include/base/nl-base-utils.h:580:3,
    inlined from 'get_psched_settings' at /var/tmp/portage/dev-libs/libnl-3.9.0/work/libnl-3.9.0/lib/utils.c:533:4:
/usr/include/fortify/string.h:299:16: warning: '__orig_strncpy' reading 4096 bytes from a region of size 17 [-Wstringop-overread]
  299 |         return __orig_strncpy(__d, __s, __n);
      |                ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from /usr/include/fortify/stdlib.h:27,
                 from /var/tmp/portage/dev-libs/libnl-3.9.0/work/libnl-3.9.0/include/base/nl-base-utils.h:10:
/usr/include/fortify/string.h: In function 'get_psched_settings':
/usr/include/fortify/string.h:287:1: note: in a call to function '__orig_strncpy' declared with attribute 'access (read_only, 2, 3)'
  287 | _FORTIFY_FN(strncpy) char *strncpy(char * _FORTIFY_POS0 __d,
      | ^~~~~~~~~~~
In function 'strncpy',
    inlined from '_nl_strncpy_assert' at /var/tmp/portage/dev-libs/libnl-3.9.0/work/libnl-3.9.0/include/base/nl-base-utils.h:580:3,
    inlined from 'get_psched_settings' at /var/tmp/portage/dev-libs/libnl-3.9.0/work/libnl-3.9.0/lib/utils.c:533:4:
/usr/include/fortify/string.h:293:13: warning: array subscript 4096 is outside array bounds of 'char[17]' [-Warray-bounds=]
  293 |         if (__fh_overlap(__d, __s, __n))
      |             ^~~~~~~~~~~~
...
...
...
/var/tmp/portage/dev-libs/libnl-3.9.0/work/libnl-3.9.0/lib/route/cls/ematch_syntax.y:77.18-21: warning: POSIX Yacc does not support string literals [-Wyacc]
   77 | %token <i> KW_AT "at"
      |                  ^~~~

[Comment 1 immolo 2024-01-09 16:00:30 UTC]

Portage 3.0.58 (python 3.11.7-final-0, default/linux/arm/23.0/armv6j_hf/musl/hardened, gcc-13, musl-1.2.4-r1, 6.1.21+ armv6l)
=================================================================
System uname: Linux-6.1.21+-armv6l-ARMv6-compatible_processor_rev_7_-v6l-with-libc
KiB Mem:      488700 total,     69160 free
KiB Swap:    2097148 total,   2089212 free
Timestamp of repository gentoo: Tue, 09 Jan 2024 00:45:01 +0000
Head commit of repository gentoo: ea146600f508c34863b7935f67443b5bc4a2de4e
sh bash 5.2_p21-r1
ld GNU ld (Gentoo 2.40 p5) 2.40.0
app-misc/pax-utils:        1.3.7::gentoo
app-shells/bash:           5.2_p21-r1::gentoo
dev-lang/perl:             5.38.2::gentoo
dev-lang/python:           3.11.7::gentoo, 3.12.1::gentoo
dev-util/cmake:            3.28.1::gentoo
dev-util/meson:            1.3.0-r2::gentoo
sys-apps/baselayout:       2.14-r1::gentoo
sys-apps/openrc:           0.52.1::gentoo
sys-apps/sandbox:          2.38::gentoo
sys-devel/autoconf:        2.71-r7::gentoo
sys-devel/automake:        1.16.5-r1::gentoo
sys-devel/binutils:        2.40-r5::gentoo, 2.41-r2::gentoo
sys-devel/binutils-config: 5.5::gentoo
sys-devel/gcc:             13.2.1_p20231014::gentoo
sys-devel/gcc-config:      2.11::gentoo
sys-devel/libtool:         2.4.7-r1::gentoo
sys-devel/make:            4.4.1-r1::gentoo
sys-kernel/linux-headers:  6.6::gentoo (virtual/os-headers)
sys-libs/musl:             1.2.4-r1::gentoo
Repositories:

gentoo
    location: /var/db/repos/gentoo
    sync-type: rsync
    sync-uri: rsync://rsync.gentoo.org/gentoo-portage
    priority: -1000
    volatile: False
    sync-rsync-verify-metamanifest: yes
    sync-rsync-verify-max-age: 3
    sync-rsync-verify-jobs: 1
    sync-rsync-extra-opts:

Binary Repositories:

gentoobinhost
    priority: 1
    sync-uri: https://gentoo.osuosl.org/releases/arm/binpackages/17.0/armv6j_hardfp_musl

ACCEPT_KEYWORDS="arm ~arm"
ACCEPT_LICENSE="*"
CBUILD="armv6j-unknown-linux-musleabihf"
CFLAGS="-Os -pipe -mcpu=arm1176jzf-s -mfpu=vfp -mfloat-abi=hard -flto"
CHOST="armv6j-unknown-linux-musleabihf"
CONFIG_PROTECT="/boot/cmdline.txt /boot/config.txt /etc /usr/share/gnupg/qualified.txt"
CONFIG_PROTECT_MASK="/etc/ca-certificates.conf /etc/env.d /etc/gconf /etc/gentoo-release /etc/sandbox.d"
CXXFLAGS="-Os -pipe -mcpu=arm1176jzf-s -mfpu=vfp -mfloat-abi=hard -flto"
DISTDIR="/var/cache/distfiles"
ENV_UNSET="CARGO_HOME DBUS_SESSION_BUS_ADDRESS DISPLAY GDK_PIXBUF_MODULE_FILE GOBIN GOPATH PERL5LIB PERL5OPT PERLPREFIX PERL_CORE PERL_MB_OPT PERL_MM_OPT XAUTHORITY XDG_CACHE_HOME XDG_CONFIG_HOME XDG_DATA_HOME XDG_RUNTIME_DIR XDG_STATE_HOME"
FCFLAGS="-Os -pipe -mcpu=arm1176jzf-s -mfpu=vfp -mfloat-abi=hard -flto"
FEATURES="assume-digests binpkg-docompress binpkg-dostrip binpkg-logs binpkg-multi-instance buildpkg-live config-protect-if-modified distlocks ebuild-locks fixlafiles ipc-sandbox merge-sync network-sandbox news parallel-fetch pid-sandbox pkgdir-index-trusted preserve-libs protect-owned qa-unresolved-soname-deps sandbox sfperms strict unknown-features-warn unmerge-logs unmerge-orphans userfetch userpriv usersandbox usersync xattr"
FFLAGS="-Os -pipe -mcpu=arm1176jzf-s -mfpu=vfp -mfloat-abi=hard -flto"
GENTOO_MIRRORS="http://distfiles.gentoo.org"
INSTALL_MASK="charset.alias /usr/share/locale/locale.alias"
LANG="C.UTF8"
LDFLAGS="-Wl,-O1 -Wl,--as-needed"
LEX="flex"
PKGDIR="/var/cache/binpkgs"
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"
SHELL="/bin/bash"
USE="acl arm bzip2 crypt hardened iconv ipv6 lto lzma ncurses nls nptl pam pcre pgo pic pie readline seccomp ssl ssp test-rust unicode xattr xtpax zlib zstd" ADA_TARGET="gnat_2021" APACHE2_MODULES="authn_core authz_core socache_shmcb unixd actions alias auth_basic authn_anon authn_dbm authn_file authz_dbm authz_groupfile authz_host authz_owner authz_user autoindex cache cgi cgid dav dav_fs dav_lock deflate dir env expires ext_filter file_cache filter headers include info log_config logio mime mime_magic negotiation rewrite setenvif speling status unique_id userdir usertrack vhost_alias" CALLIGRA_FEATURES="karbon sheets words" COLLECTD_PLUGINS="df interface irq load memory rrdtool swap syslog" CPU_FLAGS_ARM="edsp thumb v4 v5 v6" ELIBC="musl" GPSD_PROTOCOLS="ashtech aivdm earthmate evermore fv18 garmin garmintxt gpsclock greis isync itrax mtk3301 ntrip navcom oceanserver oncore rtcm104v2 rtcm104v3 sirf skytraq superstar2 tsip tripmate tnt ublox" INPUT_DEVICES="libinput" KERNEL="linux" LCD_DEVICES="bayrad cfontz glk hd44780 lb216 lcdm001 mtxorb text" LUA_SINGLE_TARGET="lua5-1" LUA_TARGETS="lua5-1" OFFICE_IMPLEMENTATION="libreoffice" PHP_TARGETS="php8-1" POSTGRES_TARGETS="postgres15" PYTHON_SINGLE_TARGET="python3_11" PYTHON_TARGETS="python3_11" RUBY_TARGETS="ruby31" VIDEO_CARDS="exynos fbdev omap dummy" XTABLES_ADDONS="quota2 psd pknock lscan length2 ipv4options ipp2p iface geoip fuzzy condition tarpit sysrq proto logmark ipmark dhcpmac delude chaos account"
Unset:  ADDR2LINE, AR, ARFLAGS, AS, ASFLAGS, CC, CCLD, CONFIG_SHELL, CPP, CPPFLAGS, CTARGET, CXX, CXXFILT, ELFEDIT, EMERGE_DEFAULT_OPTS, EXTRA_ECONF, F77FLAGS, FC, GCOV, GPROF, LC_ALL, LD, LFLAGS, LIBTOOL, LINGUAS, MAKE, MAKEFLAGS, MAKEOPTS, NM, OBJCOPY, OBJDUMP, PORTAGE_BINHOST, PORTAGE_BUNZIP2_COMMAND, PORTAGE_COMPRESS, PORTAGE_COMPRESS_FLAGS, PORTAGE_RSYNC_EXTRA_OPTS, PYTHONPATH, RANLIB, READELF, RUSTFLAGS, SIZE, STRINGS, STRIP, YACC, YFLAGS

[Comment 2 Sam James 2024-01-09 16:01:07 UTC]

The error is actually missing from your snippet.

It's this:
```
      | ^~~~~~~~~~~
make: *** [Makefile:8017: lib/route/pktloc_syntax.c] Segmentation fault
 * ERROR: dev-libs/libnl-3.9.0::gentoo failed (compile phase):
 *   emake failed
```

pktloc_syntax.c is a generated file from pktloc_syntax.y. So, it's probably a Bison command or something which fails. Please try find what and then run it under gdb to get a bt.