15866 2025-05-20 02:20:34 +0000 Failed to compile qtbase from meta-qt6 on qemuarm in Yocto with GCC 15 2025-05-31 05:23:59 +0000 1 1 7 Build System, Metadata & Runtime OE-Core devtools / tool chain 5.3 Other arm RESOLVED FIXED Medium+ normal 5.3 M2 1 sunggon82.kim peng.zhang1.cn meta.mr.watcher meta.watcher peng.zhang1.cn randy.macleod --- --- Don't know oldest_to_newest 101998 0 sunggon82.kim 2025-05-20 02:20:34 +0000 The qtbase recipe from the meta-qt6 layer failed to compile on qemuarm on an Ubuntu 22.04 machine, resulting in the following log messages. This issue didn't occur with GCC 14 but started happening after switching to GCC 15. | FAILED: src/corelib/CMakeFiles/Core.dir/kernel/qcoreapplication.cpp.o | /home/sunggon82.kim/workspace/temp/poky/build/tmp/work/cortexa15t2hf-neon-poky-linux-gnueabi/qtbase/6.10.0/recipe-sysroot-native/usr/bin/arm-poky-linux-gnueabi/arm-poky-linux-gnueabi-g++ --sysroot=/home/sunggon82.kim/workspace/temp/poky/build/tmp/work/cortexa15t2hf-neon-poky-linux-gnueabi/qtbase/6.10.0/recipe-sysroot -DBACKTRACE_HEADER=\"execinfo.h\" -DCore_EXPORTS -DQT_ASCII_CAST_WARNINGS -DQT_BUILDING_QT -DQT_BUILD_CORE_LIB -DQT_DEPRECATED_WARNINGS -DQT_EXPLICIT_QFILE_CONSTRUCTION_FROM_PATH -DQT_LEAN_HEADERS=1 -DQT_MOC_COMPAT -DQT_NO_CAST_TO_ASCII -DQT_NO_CONTEXTLESS_CONNECT -DQT_NO_DEBUG -DQT_NO_FOREACH -DQT_NO_JAVA_STYLE_ITERATORS -DQT_NO_NARROWING_CONVERSIONS_IN_CONNECT -DQT_NO_QASCONST -DQT_NO_QEXCHANGE -DQT_NO_QPAIR -DQT_NO_QSNPRINTF -DQT_NO_STD_FORMAT_SUPPORT -DQT_NO_USING_NAMESPACE -DQT_TYPESAFE_FLAGS -DQT_USE_NODISCARD_FILE_OPEN -DQT_USE_QSTRINGBUILDER -D_GLIBCXX_ASSERTIONS -D_LARGEFILE64_SOURCE -D_LARGEFILE_SOURCE -I/home/sunggon82.kim/workspace/temp/poky/build/tmp/work/cortexa15t2hf-neon-poky-linux-gnueabi/qtbase/6.10.0/build/src/corelib/Core_autogen/include -I/home/sunggon82.kim/workspace/temp/poky/build/tmp/work/cortexa15t2hf-neon-poky-linux-gnueabi/qtbase/6.10.0/build/include -I/home/sunggon82.kim/workspace/temp/poky/build/tmp/work/cortexa15t2hf-neon-poky-linux-gnueabi/qtbase/6.10.0/build/include/QtCore -I/home/sunggon82.kim/workspace/temp/poky/build/tmp/work/cortexa15t2hf-neon-poky-linux-gnueabi/qtbase/6.10.0/git/src/corelib -I/home/sunggon82.kim/workspace/temp/poky/build/tmp/work/cortexa15t2hf-neon-poky-linux-gnueabi/qtbase/6.10.0/build/src/corelib -I/home/sunggon82.kim/workspace/temp/poky/build/tmp/work/cortexa15t2hf-neon-poky-linux-gnueabi/qtbase/6.10.0/build/src/corelib/global -I/home/sunggon82.kim/workspace/temp/poky/build/tmp/work/cortexa15t2hf-neon-poky-linux-gnueabi/qtbase/6.10.0/build/src/corelib/kernel -I/home/sunggon82.kim/workspace/temp/poky/build/tmp/work/cortexa15t2hf-neon-poky-linux-gnueabi/qtbase/6.10.0/git/src/corelib/../3rdparty/tinycbor/src -I/home/sunggon82.kim/workspace/temp/poky/build/tmp/work/cortexa15t2hf-neon-poky-linux-gnueabi/qtbase/6.10.0/build/include/QtCore/6.10.0 -I/home/sunggon82.kim/workspace/temp/poky/build/tmp/work/cortexa15t2hf-neon-poky-linux-gnueabi/qtbase/6.10.0/build/include/QtCore/6.10.0/QtCore -I/home/sunggon82.kim/workspace/temp/poky/build/tmp/work/cortexa15t2hf-neon-poky-linux-gnueabi/qtbase/6.10.0/git/src/corelib/../3rdparty/double-conversion/double-conversion -I/home/sunggon82.kim/workspace/temp/poky/build/tmp/work/cortexa15t2hf-neon-poky-linux-gnueabi/qtbase/6.10.0/git/src/corelib/../3rdparty/double-conversion -I/home/sunggon82.kim/workspace/temp/poky/build/tmp/work/cortexa15t2hf-neon-poky-linux-gnueabi/qtbase/6.10.0/git/src/corelib/../3rdparty/forkfd -I/home/sunggon82.kim/workspace/temp/poky/build/tmp/work/cortexa15t2hf-neon-poky-linux-gnueabi/qtbase/6.10.0/build/src/corelib/.rcc -I/home/sunggon82.kim/workspace/temp/poky/build/tmp/work/cortexa15t2hf-neon-poky-linux-gnueabi/qtbase/6.10.0/git/mkspecs/linux-g++ -I/home/sunggon82.kim/workspace/temp/poky/build/tmp/work/cortexa15t2hf-neon-poky-linux-gnueabi/qtbase/6.10.0/recipe-sysroot/usr/include/glib-2.0 -I/home/sunggon82.kim/workspace/temp/poky/build/tmp/work/cortexa15t2hf-neon-poky-linux-gnueabi/qtbase/6.10.0/recipe-sysroot/usr/lib/glib-2.0/include -mthumb -mfpu=neon -mfloat-abi=hard -mcpu=cortex-a15 -fstack-protector-strong -O2 -D_FORTIFY_SOURCE=2 -Wformat -Wformat-security -Werror=format-security -D_TIME_BITS=64 -D_FILE_OFFSET_BITS=64 --sysroot=/home/sunggon82.kim/workspace/temp/poky/build/tmp/work/cortexa15t2hf-neon-poky-linux-gnueabi/qtbase/6.10.0/recipe-sysroot -O2 -g -ffile-prefix-map=/home/sunggon82.kim/workspace/temp/poky/build/tmp/work/cortexa15t2hf-neon-poky-linux-gnueabi/qtbase/6.10.0/git=/usr/src/debug/qtbase/6.10.0 -ffile-prefix-map=/home/sunggon82.kim/workspace/temp/poky/build/tmp/work/cortexa15t2hf-neon-poky-linux-gnueabi/qtbase/6.10.0/build=/usr/src/debug/qtbase/6.10.0 -ffile-prefix-map=/home/sunggon82.kim/workspace/temp/poky/build/tmp/work/cortexa15t2hf-neon-poky-linux-gnueabi/qtbase/6.10.0/recipe-sysroot= -ffile-prefix-map=/home/sunggon82.kim/workspace/temp/poky/build/tmp/work/cortexa15t2hf-neon-poky-linux-gnueabi/qtbase/6.10.0/recipe-sysroot-native= -fmacro-prefix-map=/home/sunggon82.kim/workspace/temp/poky/build/tmp/work/cortexa15t2hf-neon-poky-linux-gnueabi/qtbase/6.10.0/image= -pipe -fvisibility-inlines-hidden -DNDEBUG -O3 -std=gnu++17 -fPIC -fvisibility=hidden -fvisibility-inlines-hidden -Wall -Wextra -Wno-expansion-to-defined -U_FORTIFY_SOURCE -Wsuggest-override -D_FORTIFY_SOURCE=2 -ftrivial-auto-var-init=pattern -fstack-protector-strong -fstack-clash-protection -fexceptions -Winvalid-pch -include /home/sunggon82.kim/workspace/temp/poky/build/tmp/work/cortexa15t2hf-neon-poky-linux-gnueabi/qtbase/6.10.0/build/src/corelib/CMakeFiles/Core.dir/cmake_pch.hxx -MD -MT src/corelib/CMakeFiles/Core.dir/kernel/qcoreapplication.cpp.o -MF src/corelib/CMakeFiles/Core.dir/kernel/qcoreapplication.cpp.o.d -o src/corelib/CMakeFiles/Core.dir/kernel/qcoreapplication.cpp.o -c /home/sunggon82.kim/workspace/temp/poky/build/tmp/work/cortexa15t2hf-neon-poky-linux-gnueabi/qtbase/6.10.0/git/src/corelib/kernel/qcoreapplication.cpp | {standard input}: Assembler messages: | {standard input}:50604: Error: ARM register expected -- `ldrex r1,[s16]' | {standard input}:50606: Error: ARM register expected -- `strex r2,r1,[s16]' | ninja: build stopped: subcommand failed. | | WARNING: /home/sunggon82.kim/workspace/temp/poky/build/tmp/work/cortexa15t2hf-neon-poky-linux-gnueabi/qtbase/6.10.0/temp/run.do_compile.22739:159 exit 1 from 'eval ${DESTDIR:+DESTDIR=${DESTDIR} }VERBOSE=1 cmake --build '/home/sunggon82.kim/workspace/temp/poky/build/tmp/work/cortexa15t2hf-neon-poky-linux-gnueabi/qtbase/6.10.0/build' "$@" -- ${EXTRA_OECMAKE_BUILD}' | WARNING: Backtrace (BB generated script): | #1: cmake_runcmake_build, /home/sunggon82.kim/workspace/temp/poky/build/tmp/work/cortexa15t2hf-neon-poky-linux-gnueabi/qtbase/6.10.0/temp/run.do_compile.22739, line 159 | #2: cmake_do_compile, /home/sunggon82.kim/workspace/temp/poky/build/tmp/work/cortexa15t2hf-neon-poky-linux-gnueabi/qtbase/6.10.0/temp/run.do_compile.22739, line 153 | #3: do_compile, /home/sunggon82.kim/workspace/temp/poky/build/tmp/work/cortexa15t2hf-neon-poky-linux-gnueabi/qtbase/6.10.0/temp/run.do_compile.22739, line 148 | #4: main, /home/sunggon82.kim/workspace/temp/poky/build/tmp/work/cortexa15t2hf-neon-poky-linux-gnueabi/qtbase/6.10.0/temp/run.do_compile.22739, line 172 ERROR: Task (/home/sunggon82.kim/workspace/temp/poky/meta-qt6/recipes-qt/qt6/qtbase_git.bb:do_compile) failed with exit code '1' To reproduce the result, you need to clone master branch of poky, meta-openembedded and meta-qt6, and then configure the build envrionment with the following configuration. # conf/bblayers.conf POKY_BBLAYERS_CONF_VERSION = "2"BBPATH = "${TOPDIR}" BBFILES ?= ""BBLAYERS ?= " \ /home/sunggon82.kim/workspace/temp/poky/meta \ /home/sunggon82.kim/workspace/temp/poky/meta-poky \ /home/sunggon82.kim/workspace/temp/poky/meta-yocto-bsp \ /home/sunggon82.kim/workspace/temp/poky/meta-openembedded/meta-python \ /home/sunggon82.kim/workspace/temp/poky/meta-openembedded/meta-oe \ /home/sunggon82.kim/workspace/temp/poky/meta-qt6 \ " # conf/local.conf MACHINE ??= "qemuarm" DISTRO ?= "poky" USER_CLASSES ?= "buildstats" PATCHRESOLVE = "noop" BB_DISKMON_DIRS ??= "\ STOPTASKS,${TMPDIR},1G,100K \ STOPTASKS,${DL_DIR},1G,100K \ STOPTASKS,${SSTATE_DIR},1G,100K \ STOPTASKS,/tmp,100M,100K \ HALT,${TMPDIR},100M,1K \ HALT,${DL_DIR},100M,1K \ HALT,${SSTATE_DIR},100M,1K \ HALT,/tmp,10M,1K" PACKAGECONFIG:append:pn-qemu-system-native = " sdl" CONF_VERSION = "2" then, build qtbase recipe with the following command. bitbake qtbase - Related issue: https://bugreports.qt.io/browse/QTBUG-136796 102035 1 randy.macleod 2025-05-22 14:41:12 +0000 Fix posted to list recently. In master-next. [OE-core] [PATCH v2] gcc: Fix wrong code generation in atomic intrinsics for arm Peng once this is merged, please resolve and provide a link to the oe-core fix. 102105 2 peng.zhang1.cn 2025-05-31 05:23:59 +0000 https://git.openembedded.org/openembedded-core/commit/?id=07f6ebadf0bc4a90bdba9106df7fb55be8d76ffd