Bug 938534 – dev-util/perf-6.7 fails to build on arm with USE=python

• Product: Gentoo Linux
• Status: UNCONFIRMED ---

[Description Nick Bowler 2024-08-26 17:45:35 UTC]

Created attachment 901286 [details]
complete build log

Hi,

The recently stabilized dev-util/perf-6.7 fails to build on arm with USE=python:

  /usr/bin/python3.12 pmu-events/jevents.py arm all pmu-events/arch pmu-events/pmu-events.c
  /var/tmp/portage/dev-util/perf-6.7/work/linux-6.7/tools/perf/pmu-events/jevents.py:83: SyntaxWarning: invalid escape sequence '\ '
    """Return the length of s a C string
  Traceback (most recent call last):
    File "/var/tmp/portage/dev-util/perf-6.7/work/linux-6.7/tools/perf/pmu-events/jevents.py", line 1285, in <module>
      main()
    File "/var/tmp/portage/dev-util/perf-6.7/work/linux-6.7/tools/perf/pmu-events/jevents.py", line 1261, in main
      raise IOError(f'Missing architecture directory \'{_args.arch}\'')
  OSError: Missing architecture directory 'arm'
  make[2]: *** [pmu-events/Build:36: pmu-events/pmu-events.c] Error 1

This seems to be a gentoo-specific problem.  The jevents.py script supports a specific list of architectures (which does not include arm).  The upstream makefile is written to check if the architecture is supported but if USE=python the ebuild adds NO_JEVENTS=0 on the make command line which effectively disables all of this and the build system will run jevents.py unconditionally.

The previous stable version perf-6.3 does not force the configuration in this way and installs without any problem.

Portage 3.0.65 (python 3.12.3-final-0, default/linux/arm/17.0/armv7a, gcc-13, glibc-2.39-r6, 5.11.22-00003-g55d3c56d53fd armv7l)
=================================================================
System uname: Linux-5.11.22-00003-g55d3c56d53fd-armv7l-ARMv7_Processor_rev_1_-v7l-with-glibc2.39
KiB Mem:     4113828 total,   2144452 free
KiB Swap:          0 total,         0 free
Timestamp of repository gentoo: Mon, 26 Aug 2024 00:45:00 +0000
sh dash 0.5.12
ld GNU ld (Gentoo 2.42 p3) 2.42.0
app-misc/pax-utils:        1.3.7::gentoo
app-shells/bash:           5.2_p26-r6::gentoo
dev-build/autoconf:        2.71-r7::gentoo
dev-build/automake:        1.16.5-r2::gentoo
dev-build/cmake:           3.28.5::gentoo
dev-build/libtool:         2.4.7-r4::gentoo
dev-build/make:            4.4.1-r1::gentoo
dev-build/meson:           1.5.1::gentoo
dev-lang/perl:             5.38.2-r3::gentoo
dev-lang/python:           3.11.9-r1::gentoo, 3.12.3-r1::gentoo
sys-apps/baselayout:       2.15::gentoo
sys-apps/openrc:           0.54.2::gentoo
sys-apps/sandbox:          2.38::gentoo
sys-devel/binutils:        2.42-r1::gentoo
sys-devel/binutils-config: 5.5::gentoo
sys-devel/gcc:             13.3.1_p20240614::gentoo
sys-devel/gcc-config:      2.11::gentoo
sys-devel/llvm:            14.0.6-r4::gentoo-fixes, 18.1.8-r1::gentoo
sys-kernel/linux-headers:  6.6-r1::gentoo (virtual/os-headers)
sys-libs/glibc:            2.39-r6::gentoo
Repositories:

gentoo
    location: /srv/repos/gentoo
    sync-type: null
    sync-uri: rsync://rsync.gentoo.org/gentoo-portage
    priority: -1000
    volatile: True

gentoo-draconx
    location: /srv/repos/gentoo-draconx
    masters: gentoo
    volatile: True

gentoo-fixes
    location: /srv/repos/gentoo-fixes
    masters: gentoo
    volatile: True

ACCEPT_KEYWORDS="arm"
ACCEPT_LICENSE="@FREE"
CBUILD="armv7a-unknown-linux-gnueabihf"
CFLAGS="-O2 -pipe -mcpu=cortex-a12 -mfpu=neon -mfloat-abi=hard"
CHOST="armv7a-unknown-linux-gnueabihf"
CONFIG_PROTECT="/etc /usr/share/gnupg/qualified.txt"
CONFIG_PROTECT_MASK="/etc/ca-certificates.conf /etc/dconf /etc/env.d /etc/fonts/fonts.conf /etc/gconf /etc/gentoo-release /etc/revdep-rebuild /etc/sandbox.d /etc/terminfo"
CXXFLAGS="-O2 -pipe -mcpu=cortex-a12 -mfpu=neon -mfloat-abi=hard"
DISTDIR="/srv/mirror/gentoo/distfiles"
EMERGE_DEFAULT_OPTS="-j2 --keep-going --dynamic-deps=n --autounmask-write=n --unordered-display --verbose-conflicts --binpkg-respect-use=y --with-bdeps-auto=n"
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="-O2 -pipe -march=armv7-a"
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 merge-wait multilib-strict 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="-O2 -pipe -march=armv7-a"
GENTOO_MIRRORS="http://distfiles.gentoo.org"
INSTALL_MASK="/usr/share/cursors/xorg-x11/default 	/usr/share/alsa/alsa.conf.d/51-pulseaudio-probe.conf 	/etc/profile.d/qtgui4.sh         /etc/gssproxy/??-*.conf         /etc/portage/*postsync.d 	/usr/share/gtk-doc 	/usr/share/doc"
LANG="en_CA.UTF-8"
LDFLAGS="-Wl,-O1 -Wl,--as-needed -Wl,--reduce-memory-overheads"
LEX="flex"
MAKEOPTS="-j3"
PKGDIR="/var/cache/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"
SHELL="/bin/zsh"
USE="X acl alsa arm armvfp bzip2 cli crypt dri flac fontconfig fortran gdbm harfbuzz iconv icu idn ipv6 jpeg kerberos ncurses neon nls ogg openmp opus pam pcre perl png python readline seccomp split-usr ssl test-rust threads truetype unicode vim-syntax vorbis xattr xcb xft xinerama zlib" ADA_TARGET="gcc_12" 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 neon thumb vfp vfpv3 vfpv4 vfp-d32 v4 v5 v6 v7 thumb2" ELIBC="glibc" 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" GUILE_SINGLE_TARGET="3-0" GUILE_TARGETS="3-0" 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="php8-2" POSTGRES_TARGETS="postgres15" PYTHON_SINGLE_TARGET="python3_12" PYTHON_TARGETS="python3_12" RUBY_TARGETS="ruby31 ruby32" 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, EXTRA_ECONF, F77FLAGS, FC, GCOV, GPROF, LC_ALL, LD, LFLAGS, LIBTOOL, LINGUAS, MAKE, MAKEFLAGS, 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 1 Nick Bowler 2024-08-26 17:49:55 UTC]

Created attachment 901287 [details, diff]
proposed patch

By setting NO_JEVENT=0 in the environment (instead of on the make command line), the makefile logic to run jevents.py only on supported architectures is allowed to work as expected.