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Bug 953436 - www-client/chromium-135.0.7049.52: fails to build with dev-util/gperf-3.2 (gen/third_party/blink/renderer/platform/color_data.cc:114:7: error: fallthrough annotation does not directly precede switch label)
Summary: www-client/chromium-135.0.7049.52: fails to build with dev-util/gperf-3.2 (ge...
Status: RESOLVED FIXED
Alias: None
Product: Gentoo Linux
Classification: Unclassified
Component: Current packages (show other bugs)
Hardware: AMD64 Linux
: Normal normal
Assignee: Chromium Project
URL:
Whiteboard:
Keywords: PATCH
Depends on:
Blocks: 953461
  Show dependency tree
 
Reported: 2025-04-08 17:40 UTC by Wolfgang
Modified: 2025-04-19 00:14 UTC (History)
6 users (show)

See Also:
Package list:
Runtime testing required: ---


Attachments
build log (file_953436.txt,31.21 KB, text/plain)
2025-04-08 17:46 UTC, Wolfgang
Details
remove the duplate code "replace_fallthrough_comment" (0002-remove-replace_fallthrough_comment.patch,1.31 KB, patch)
2025-04-09 11:22 UTC, random
Details | Diff
gperf.patch (gperf.patch,1.50 KB, patch)
2025-04-09 11:23 UTC, Sam James
Details | Diff

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Description Wolfgang 2025-04-08 17:40:07 UTC
emerge --info '=www-client/chromium-135.0.7049.52::gentoo'
Portage 3.0.67 (python 3.13.2-final-0, default/linux/amd64/23.0/desktop/plasma/systemd, gcc-13, glibc-2.41-r1, 6.13.6-gentoo x86_64)
=================================================================
                         System Settings
=================================================================
System uname: Linux-6.13.6-gentoo-x86_64-Intel-R-_Xeon-R-_CPU_E5-2696_v4_@_2.20GHz-with-glibc2.41
KiB Mem:   131793872 total, 105158792 free
KiB Swap:    3710972 total,   3710972 free
Timestamp of repository gentoo: Mon, 07 Apr 2025 13:15:00 +0000
Head commit of repository gentoo: eb3be1f27b340460abaf0fb6b5b5f5ae3c1b5798
Timestamp of repository gentoo-zh: Tue, 08 Apr 2025 09:50:14 +0000
Head commit of repository gentoo-zh: 2e86a3f894d2012fd0080369f0e3e805f7b546d4

Timestamp of repository steam-overlay: Fri, 04 Apr 2025 17:22:34 +0000
Head commit of repository steam-overlay: 77548ff0e6ec3f8115777e66d7f1cf0f2779a4a4

sh bash 5.2_p37
ld GNU ld (Gentoo 2.44 p1) 2.44.0
app-misc/pax-utils:        1.3.8::gentoo
app-shells/bash:           5.2_p37::gentoo
dev-build/autoconf:        2.72-r1::gentoo
dev-build/automake:        1.17-r2::gentoo
dev-build/cmake:           3.31.6-r1::gentoo
dev-build/libtool:         2.5.4::gentoo
dev-build/make:            4.4.1-r100::gentoo
dev-build/meson:           1.7.2::gentoo
dev-java/java-config:      2.3.4::gentoo
dev-lang/perl:             5.40.1::gentoo
dev-lang/python:           3.12.9::gentoo, 3.13.2::gentoo
dev-lang/rust:             1.85.0-r1::gentoo, 1.85.1::gentoo
llvm-core/clang:           19.1.7::gentoo, 20.1.2::gentoo
llvm-core/lld:             19.1.7::gentoo, 20.1.2::gentoo
llvm-core/llvm:            17.0.6-r3::gentoo, 19.1.7::gentoo, 20.1.2::gentoo
sys-apps/baselayout:       2.17::gentoo
sys-apps/openrc:           0.61::gentoo
sys-apps/sandbox:          2.46::gentoo
sys-apps/systemd:          257.5::gentoo
sys-devel/binutils:        2.44::gentoo
sys-devel/binutils-config: 5.5.2::gentoo
sys-devel/gcc:             12.4.1_p20250227::gentoo, 13.3.1_p20250301::gentoo, 14.2.1_p20250301::gentoo
sys-devel/gcc-config:      2.12.1::gentoo
sys-kernel/linux-headers:  6.14::gentoo (virtual/os-headers)
sys-libs/glibc:            2.41-r1::gentoo
Repositories:

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

Lokal
    location: /usr/local/portage
    masters: gentoo
    volatile: True

gentoo-zh
    location: /var/db/repos/gentoo-zh
    sync-type: git
    sync-uri: https://github.com/gentoo-mirror/gentoo-zh.git
    masters: gentoo
    volatile: False

local
    location: /var/db/repos/local
    masters: gentoo
    volatile: False

steam-overlay
    location: /var/db/repos/steam-overlay
    sync-type: git
    sync-uri: https://github.com/gentoo-mirror/steam-overlay.git
    masters: gentoo
    volatile: False

crossdev
    location: /var/db/repos/portage-crossdev
    masters: gentoo
    priority: 10
    volatile: False

Binary Repositories:

binhost
    priority: 9999
    sync-uri: https://ftp.tu-ilmenau.de/mirror/gentoo/releases/amd64/binpackages/23.0/x86-64

ACCEPT_KEYWORDS="amd64 ~amd64"
ACCEPT_LICENSE="*"
CBUILD="x86_64-pc-linux-gnu"
CFLAGS="-march=native -O2 -pipe"
CHOST="x86_64-pc-linux-gnu"
CONFIG_PROTECT="/etc /usr/lib64/libreoffice/program/sofficerc /usr/share/config /usr/share/gnupg/qualified.txt /var/bind"
CONFIG_PROTECT_MASK="/etc/ca-certificates.conf /etc/dconf /etc/env.d /etc/fonts/fonts.conf /etc/gconf /etc/gentoo-release /etc/php/apache2-php8.4/ext-active/ /etc/php/cgi-php8.4/ext-active/ /etc/php/cli-php8.4/ext-active/ /etc/php/fpm-php8.4/ext-active/ /etc/php/phpdbg-php8.4/ext-active/ /etc/revdep-rebuild /etc/sandbox.d"
CXXFLAGS="-march=native -O2 -pipe"
DISTDIR="/usr/portage/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="-O2 -pipe"
FEATURES="assume-digests binpkg-docompress binpkg-dostrip binpkg-logs binpkg-multi-instance binpkg-request-signature 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 strict unknown-features-warn unmerge-logs unmerge-orphans userfetch userpriv usersandbox usersync xattr"
FFLAGS="-O2 -pipe"
GENTOO_MIRRORS="https://mirror.eu.oneandone.net/linux/distributions/gentoo/gentoo/     http://mirror.eu.oneandone.net/linux/distributions/gentoo/gentoo/     rsync://mirror.eu.oneandone.net/gentoo/     https://mirror.dogado.de/gentoo     http://ftp.agdsn.de/gentoo     https://ftp.agdsn.de/gentoo     rsync://ftp.agdsn.de/gentoo     https://ftp.spline.inf.fu-berlin.de/mirrors/gentoo/     http://ftp.spline.inf.fu-berlin.de/mirrors/gentoo/     rsync://ftp.spline.inf.fu-berlin.de/gentoo-distfiles/     https://ftp.gwdg.de/pub/linux/gentoo/     http://ftp.gwdg.de/pub/linux/gentoo/     ftp://ftp.gwdg.de/pub/linux/gentoo/     rsync://ftp.gwdg.de/gentoo/     https://ftp.uni-hannover.de/gentoo/     http://ftp.uni-hannover.de/gentoo/     ftp://ftp.uni-hannover.de/gentoo/     ftp://mirror.netcologne.de/gentoo/     https://mirror.netcologne.de/gentoo/     http://mirror.netcologne.de/gentoo/     rsync://mirror.netcologne.de/gentoo/     https://mirror.netzwerge.de/gentoo/     http://mirror.netzwerge.de/gentoo/     rsync://mirror.netzwerge.de/gentoo     https://packages.hs-regensburg.de/gentoo-distfiles/     https://linux.rz.ruhr-uni-bochum.de/download/gentoo-mirror/     http://linux.rz.ruhr-uni-bochum.de/download/gentoo-mirror/     ftp://linux.rz.ruhr-uni-bochum.de/gentoo-mirror/     rsync://linux.rz.ruhr-uni-bochum.de/gentoo     https://ftp.halifax.rwth-aachen.de/gentoo/     http://ftp.halifax.rwth-aachen.de/gentoo/     ftp://ftp.halifax.rwth-aachen.de/gentoo/     rsync://ftp.halifax.rwth-aachen.de/gentoo/     https://ftp.tu-ilmenau.de/mirror/gentoo/     http://ftp.tu-ilmenau.de/mirror/gentoo/     rsync://ftp.tu-ilmenau.de/gentoo/     https://ftp.fau.de/gentoo     http://ftp.fau.de/gentoo     ftp://ftp.fau.de/gentoo     rsync://ftp.fau.de/gentoo     https://ftp-stud.hs-esslingen.de/pub/Mirrors/gentoo/     http://ftp-stud.hs-esslingen.de/pub/Mirrors/gentoo/     ftp://ftp-stud.hs-esslingen.de/pub/Mirrors/gentoo/     rsync://ftp-stud.hs-esslingen.de/gentoo/     https://ftp.uni-stuttgart.de/gentoo-distfiles/     http://ftp.uni-stuttgart.de/gentoo-distfiles/     ftp://ftp.uni-stuttgart.de/gentoo-distfiles/"
LANG="de_DE.utf8"
LDFLAGS="-Wl,-O1 -Wl,--as-needed -Wl,-z,pack-relative-relocs"
LEX="flex"
LINGUAS="de_DE de en"
MAKEOPTS="-j44 -l44"
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"
SHELL="/bin/bash"
USE="X a52 aac acl acpi activities aes alsa amd64 apache2 avx avx2 bcmath bluetooth branding bzip2 cairo cdda cdr cet colord crypt cuda cups curl dbus declarative dmx dri dts dvd dvdr encode exif ffmpeg flac fma3 gd gdbm gentoo-vm gif gimp gpm gtk gui iconv icu imagemagick intl ipv6 jpeg kde kf6compat kwallet lcms libnotify libtirpc lm-sensors mad mmx mmxext mng mp3 mp4 mpeg multilib mysql mysqli ncurses networkmanager nls nvenc nvidia ogg opcache opengl openmp pam pango pcre pdf pdo pipewire plasma png policykit popcnt postscript ppds pulseaudio qml qt5 qt6 rdp readline samba screencast sdl seccomp semantic-desktop soap sound spell sse sse2 sse3 sse4_1 sse4_2 ssl ssse3 startup-notification svg systemd test-rust tiff truetype udev udisks unicode upower usb v4l vaapi vdpau vnc vorbis vulkan wayland widgets wxwidgets x264 xattr xcb xft xinerama xml xslt xv xvid xvmc zip zlib" ABI_X86="64" ADA_TARGET="gcc_14" 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_X86="aes avx avx2 f16c fma3 mmx mmxext pclmul popcnt rdrand sse sse2 sse3 sse4_1 sse4_2 ssse3" ELIBC="glibc" GPSD_PROTOCOLS="ashtech aivdm earthmate evermore fv18 garmin garmintxt gpsclock greis isync itrax navcom oceanserver oncore rtcm104v2 rtcm104v3 sirf skytraq superstar2 tsip tripmate tnt ublox" GUILE_SINGLE_TARGET="3-0" GUILE_TARGETS="3-0" INPUT_DEVICES="evdev libinput" KERNEL="linux" L10N="de" LCD_DEVICES="bayrad cfontz glk hd44780 lb216 lcdm001 mtxorb text" LLVM_TARGETS="NVPTX" LUA_SINGLE_TARGET="lua5-1" LUA_TARGETS="lua5-1" OFFICE_IMPLEMENTATION="libreoffice" PHP_TARGETS="php8_0" POSTGRES_TARGETS="postgres17" PYTHON_SINGLE_TARGET="python3_12" PYTHON_TARGETS="python3_12 python3_13" QEMU_SOFTMMU_TARGETS="x86_64 i386" QEMU_USER_TARGETS="x86_64 i386" RUBY_TARGETS="ruby32 ruby33 ruby34" VIDEO_CARDS="nvidia" 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, INSTALL_MASK, LC_ALL, LD, LFLAGS, LIBTOOL, 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


emerge -pqv =www-client/chromium-135.0.7049.52::gentoo
[ebuild     U ] www-client/chromium-135.0.7049.52 [135.0.7049.3] USE="X cups hangouts official proprietary-codecs pulseaudio qt6 screencast system-harfbuzz system-png system-zstd vaapi wayland widevine -bindist -bundled-toolchain -custom-cflags -debug -ffmpeg-chromium -gtk4 (-headless) -kerberos -pax-kernel (-pgo) (-selinux) (-system-icu) -test" L10N="de -af -am -ar -bg -bn -ca -cs -da -el -en-GB -es -es-419 -et -fa -fi -fil -fr -gu -he -hi -hr -hu -id -it -ja -kn -ko -lt -lv -ml -mr -ms -nb -nl -pl -pt-BR -pt-PT -ro -ru -sk -sl -sr -sv -sw -ta -te -th -tr -uk -ur -vi -zh-CN -zh-TW" LLVM_SLOT="19 (-20)" 


User patch applied as mentioned in https://bugs.gentoo.org/show_bug.cgi?id=951816


uname -a
Linux forest 6.13.6-gentoo #2 SMP PREEMPT_DYNAMIC Thu Mar 13 17:54:48 CET 2025 x86_64 Intel(R) Xeon(R) CPU E5-2696 v4 @ 2.20GHz GenuineIntel GNU/Linux
Comment 1 Wolfgang 2025-04-08 17:46:56 UTC
Created attachment 924110 [details]
build log
Comment 2 Sam James archtester Gentoo Infrastructure gentoo-dev Security 2025-04-09 05:37:42 UTC
Ah, this is a generated file by gperf, I think! It's therefore likely caused by dev-util/gperf-3.2?
Comment 3 Sam James archtester Gentoo Infrastructure gentoo-dev Security 2025-04-09 05:41:05 UTC
```
gen/third_party/blink/renderer/platform/color_data.cc:170:7: error: fallthrough annotation does not directly precede switch label
  170 |       [[fallthrough]];
      |       ^
gen/third_party/blink/renderer/platform/color_data.cc:154:7: error: fallthrough annotation does not directly precede switch label
  154 |       [[fallthrough]];
      |       ^
gen/third_party/blink/renderer/platform/color_data.cc:234:7: error: fallthrough annotation does not directly precede switch label
  234 |       [[fallthrough]];
      |       ^
gen/third_party/blink/renderer/platform/color_data.cc:210:7: error: fallthrough annotation does not directly precede switch label
  210 |       [[fallthrough]];
      |       ^
gen/third_party/blink/renderer/platform/color_data.cc:106:7: error: fallthrough annotation does not directly precede switch label
  106 |       [[fallthrough]];
      |       ^
gen/third_party/blink/renderer/platform/color_data.cc:130:7: error: fallthrough annotation does not directly precede switch label
  130 |       [[fallthrough]];
      |       ^
gen/third_party/blink/renderer/platform/color_data.cc:242:7: error: fallthrough annotation does not directly precede switch label
  242 |       [[fallthrough]];
      |       ^
[...]
```
Comment 4 Sam James archtester Gentoo Infrastructure gentoo-dev Security 2025-04-09 10:23:27 UTC
I'm poking a bit.
Comment 5 Sam James archtester Gentoo Infrastructure gentoo-dev Security 2025-04-09 10:31:37 UTC
It's a Chromium bug. 

```
www-client/chromium-135.0.7049.84/work/chromium-135.0.7049.84/out/Release # gperf --key-positions=\* -D -s 2 ../../third_party/blink/renderer/platform/color_data.gperf --output-file=gen/third_party/blink/renderer/platform/color_data.cc
```

Works fine, no dodgy [[fallthrough]].

But third_party/blink/renderer/build/scripts/gperf.py has..

```
        # -Wimplicit-fallthrough needs an explicit fallthrough statement,
        # so replace gperf's /*FALLTHROUGH*/ comment with the statement.
        # https://savannah.gnu.org/bugs/index.php?53029
        gperf_output = gperf_output.replace('/*FALLTHROUGH*/',
                                            '  [[fallthrough]];')
```

I actually think each of the workarounds that file does could be removed now w/ gperf-3.2.
Comment 6 random 2025-04-09 11:22:06 UTC
Created attachment 924200 [details, diff]
remove the duplate code "replace_fallthrough_comment"
Comment 7 Sam James archtester Gentoo Infrastructure gentoo-dev Security 2025-04-09 11:23:26 UTC
Created attachment 924201 [details, diff]
gperf.patch
Comment 8 Sam James archtester Gentoo Infrastructure gentoo-dev Security 2025-04-09 11:23:34 UTC
(In reply to Sam James from comment #7)
> Created attachment 924201 [details, diff] [details, diff]
> gperf.patch

This just finished building and WFM.
Comment 9 Matt Whitlock 2025-04-12 16:39:51 UTC
I had this issue too. The patch in comment 7 fixed it for me as well.
Comment 10 Sam James archtester Gentoo Infrastructure gentoo-dev Security 2025-04-13 22:26:27 UTC
commit f5e828591c4596293f8a3157aa074b930e68b69f
Author: Matt Jolly <kangie@gentoo.org>
Date:   Mon Apr 14 07:44:55 2025 +1000

    www-client/chromium: fix build with gperf >=3.2

    This patch appears doesn't appear to impact when built
    with older versions of gperf, so we'll apply unconditionally.

    Bump the minimum gperf version for M136.

    Signed-off-by: Matt Jolly <kangie@gentoo.org>
Comment 11 Sam James archtester Gentoo Infrastructure gentoo-dev Security 2025-04-19 00:12:33 UTC
commit 1b46554a96860af16180c43d7cc6b8ec38d36917
Author: Ionen Wolkens <ionen@gentoo.org>
Date:   Fri Apr 18 06:52:30 2025 -0400

    dev-qt/qtwebengine: backport build fix for with gperf 3.2

    Signed-off-by: Ionen Wolkens <ionen@gentoo.org>