Most relevant configure and test flags: --target arm-linux-gnueabihf 

Full configure and make flags for each step:

# 03-build_abe-binutils
(cd /home/tcwg-build/workspace/tcwg_gnu_1/abe/builds/x86_64-pc-linux-gnu/arm-linux-gnueabihf/binutils-binutils.git~master && /bin/bash /home/tcwg-build/workspace/tcwg_gnu_1/abe/snapshots/binutils.git~master/configure SHELL=/bin/bash  --enable-lto --enable-plugins --enable-gold --disable-werror CPPFLAGS=-UFORTIFY_SOURCE --with-pkgversion=Linaro_Binutils-2025.10.31 --disable-gdb --disable-gdbserver --disable-sim --disable-libdecnumber --disable-readline --with-sysroot=/home/tcwg-build/workspace/tcwg_gnu_1/abe/builds/destdir/x86_64-pc-linux-gnu/arm-linux-gnueabihf --build=x86_64-pc-linux-gnu --host=x86_64-pc-linux-gnu --target=arm-linux-gnueabihf --prefix=/home/tcwg-build/workspace/tcwg_gnu_1/abe/builds/destdir/x86_64-pc-linux-gnu)
make SHELL=/bin/bash -w -C /home/tcwg-build/workspace/tcwg_gnu_1/abe/builds/x86_64-pc-linux-gnu/arm-linux-gnueabihf/binutils-binutils.git~master  -j 32 CFLAGS_FOR_BUILD="-pipe -g -O2" CXXFLAGS_FOR_BUILD="-pipe -g -O2" LDFLAGS_FOR_BUILD="-static-libgcc" 2>&1 | tee -a /home/tcwg-build/workspace/tcwg_gnu_1/abe/builds/x86_64-pc-linux-gnu/arm-linux-gnueabihf/binutils-binutils.git~master/make-binutils.log
make install  -w -C /home/tcwg-build/workspace/tcwg_gnu_1/abe/builds/x86_64-pc-linux-gnu/arm-linux-gnueabihf/binutils-binutils.git~master 2>&1 | tee -a /home/tcwg-build/workspace/tcwg_gnu_1/abe/builds/x86_64-pc-linux-gnu/arm-linux-gnueabihf/binutils-binutils.git~master/make-binutils.log

# 04-build_abe-stage1
(cd /home/tcwg-build/workspace/tcwg_gnu_1/abe/builds/x86_64-pc-linux-gnu/arm-linux-gnueabihf/gcc-gcc.git~master-stage1 && /bin/bash /home/tcwg-build/workspace/tcwg_gnu_1/abe/snapshots/gcc.git~master/configure SHELL=/bin/bash  --with-mpc=/home/tcwg-build/workspace/tcwg_gnu_1/abe/builds/destdir/x86_64-pc-linux-gnu --with-mpfr=/home/tcwg-build/workspace/tcwg_gnu_1/abe/builds/destdir/x86_64-pc-linux-gnu --with-gmp=/home/tcwg-build/workspace/tcwg_gnu_1/abe/builds/destdir/x86_64-pc-linux-gnu --with-gnu-as --with-gnu-ld --disable-libmudflap --enable-lto --enable-shared --without-included-gettext --enable-nls --with-system-zlib --disable-sjlj-exceptions --enable-gnu-unique-object --enable-linker-build-id --disable-libstdcxx-pch --enable-c99 --enable-clocale=gnu --enable-libstdcxx-debug --enable-long-long --with-cloog=no --with-ppl=no --with-isl=no --disable-multilib --with-float=hard --with-fpu=vfpv3-d16 --with-mode=thumb --with-tune=cortex-a9 --with-arch=armv7-a --enable-threads=posix --enable-multiarch --enable-libstdcxx-time=yes --enable-gnu-indirect-function --disable-libssp --disable-libquadmath --disable-threads --without-headers --with-newlib --disable-libmudflap --disable-decimal-float --disable-libgomp --disable-libatomic --disable-libsanitizer --disable-plugins --disable-libitm --disable-libvtv --disable-shared --enable-languages=c,c++ --disable-libstdcxx --with-glibc-version=2.18 --disable-bootstrap --prefix=/home/tcwg-build/workspace/tcwg_gnu_1/abe/builds/destdir/x86_64-pc-linux-gnu  --build=x86_64-pc-linux-gnu --host=x86_64-pc-linux-gnu --target=arm-linux-gnueabihf)
make SHELL=/bin/bash -w -C /home/tcwg-build/workspace/tcwg_gnu_1/abe/builds/x86_64-pc-linux-gnu/arm-linux-gnueabihf/gcc-gcc.git~master-stage1  -j 32 CFLAGS_FOR_BUILD="-pipe -g -O2" CXXFLAGS_FOR_BUILD="-pipe -g -O2" LDFLAGS_FOR_BUILD="-static-libgcc" MAKEINFOFLAGS=--force 2>&1 | tee -a /home/tcwg-build/workspace/tcwg_gnu_1/abe/builds/x86_64-pc-linux-gnu/arm-linux-gnueabihf/gcc-gcc.git~master-stage1/make-gcc-stage1.log
make install  -w -C /home/tcwg-build/workspace/tcwg_gnu_1/abe/builds/x86_64-pc-linux-gnu/arm-linux-gnueabihf/gcc-gcc.git~master-stage1 2>&1 | tee -a /home/tcwg-build/workspace/tcwg_gnu_1/abe/builds/x86_64-pc-linux-gnu/arm-linux-gnueabihf/gcc-gcc.git~master-stage1/make-gcc-stage1.log

# 06-build_abe-linux
make -C /home/tcwg-build/workspace/tcwg_gnu_1/abe/snapshots/linux.git~master  headers_install ARCH=arm INSTALL_HDR_PATH=/home/tcwg-build/workspace/tcwg_gnu_1/abe/builds/destdir/x86_64-pc-linux-gnu/arm-linux-gnueabihf/libc/usr

# 07-build_abe-glibc
(cd /home/tcwg-build/workspace/tcwg_gnu_1/abe/builds/x86_64-pc-linux-gnu/arm-linux-gnueabihf/glibc-glibc.git~master && /bin/bash /home/tcwg-build/workspace/tcwg_gnu_1/abe/snapshots/glibc.git~master/configure SHELL=/bin/bash  --disable-profile --with-gd=no --with-headers=/home/tcwg-build/workspace/tcwg_gnu_1/abe/builds/destdir/x86_64-pc-linux-gnu/arm-linux-gnueabihf/libc/usr/include --without-selinux --enable-stack-protector=strong --enable-bind-now=yes --enable-fortify-source=2 --build=x86_64-pc-linux-gnu --host=arm-linux-gnueabihf --target=arm-linux-gnueabihf --prefix=/usr)
make SHELL=/bin/bash -w -C /home/tcwg-build/workspace/tcwg_gnu_1/abe/builds/x86_64-pc-linux-gnu/arm-linux-gnueabihf/glibc-glibc.git~master  -j 32 CFLAGS_FOR_BUILD="-pipe -g -O2" CXXFLAGS_FOR_BUILD="-pipe -g -O2" LDFLAGS_FOR_BUILD="-static-libgcc" 2>&1 | tee -a /home/tcwg-build/workspace/tcwg_gnu_1/abe/builds/x86_64-pc-linux-gnu/arm-linux-gnueabihf/glibc-glibc.git~master/make-glibc.log
make install install_root=/home/tcwg-build/workspace/tcwg_gnu_1/abe/builds/destdir/x86_64-pc-linux-gnu/arm-linux-gnueabihf/libc  LDFLAGS=-static-libgcc -w -C /home/tcwg-build/workspace/tcwg_gnu_1/abe/builds/x86_64-pc-linux-gnu/arm-linux-gnueabihf/glibc-glibc.git~master 2>&1 | tee -a /home/tcwg-build/workspace/tcwg_gnu_1/abe/builds/x86_64-pc-linux-gnu/arm-linux-gnueabihf/glibc-glibc.git~master/make-glibc.log

# 08-build_abe-stage2
(cd /home/tcwg-build/workspace/tcwg_gnu_1/abe/builds/x86_64-pc-linux-gnu/arm-linux-gnueabihf/gcc-gcc.git~master-stage2 && /bin/bash /home/tcwg-build/workspace/tcwg_gnu_1/abe/snapshots/gcc.git~master/configure SHELL=/bin/bash  --with-mpc=/home/tcwg-build/workspace/tcwg_gnu_1/abe/builds/destdir/x86_64-pc-linux-gnu --with-mpfr=/home/tcwg-build/workspace/tcwg_gnu_1/abe/builds/destdir/x86_64-pc-linux-gnu --with-gmp=/home/tcwg-build/workspace/tcwg_gnu_1/abe/builds/destdir/x86_64-pc-linux-gnu --with-gnu-as --with-gnu-ld --disable-libmudflap --enable-lto --enable-shared --without-included-gettext --enable-nls --with-system-zlib --disable-sjlj-exceptions --enable-gnu-unique-object --enable-linker-build-id --disable-libstdcxx-pch --enable-c99 --enable-clocale=gnu --enable-libstdcxx-debug --enable-long-long --with-cloog=no --with-ppl=no --with-isl=no --disable-multilib --with-float=hard --with-fpu=vfpv3-d16 --with-mode=thumb --with-tune=cortex-a9 --with-arch=armv7-a --enable-threads=posix --enable-multiarch --enable-libstdcxx-time=yes --enable-gnu-indirect-function --with-sysroot=/home/tcwg-build/workspace/tcwg_gnu_1/abe/builds/destdir/x86_64-pc-linux-gnu/arm-linux-gnueabihf/libc --enable-checking=yes --disable-bootstrap --enable-languages=default --prefix=/home/tcwg-build/workspace/tcwg_gnu_1/abe/builds/destdir/x86_64-pc-linux-gnu  --build=x86_64-pc-linux-gnu --host=x86_64-pc-linux-gnu --target=arm-linux-gnueabihf)
make SHELL=/bin/bash -w -C /home/tcwg-build/workspace/tcwg_gnu_1/abe/builds/x86_64-pc-linux-gnu/arm-linux-gnueabihf/gcc-gcc.git~master-stage2  -j 32 CFLAGS_FOR_BUILD="-pipe -g -O2" CXXFLAGS_FOR_BUILD="-pipe -g -O2" LDFLAGS_FOR_BUILD="-static-libgcc" MAKEINFOFLAGS=--force 2>&1 | tee -a /home/tcwg-build/workspace/tcwg_gnu_1/abe/builds/x86_64-pc-linux-gnu/arm-linux-gnueabihf/gcc-gcc.git~master-stage2/make-gcc-stage2.log
make install  -w -C /home/tcwg-build/workspace/tcwg_gnu_1/abe/builds/x86_64-pc-linux-gnu/arm-linux-gnueabihf/gcc-gcc.git~master-stage2 2>&1 | tee -a /home/tcwg-build/workspace/tcwg_gnu_1/abe/builds/x86_64-pc-linux-gnu/arm-linux-gnueabihf/gcc-gcc.git~master-stage2/make-gcc-stage2.log

# 09-build_abe-gdb
(cd /home/tcwg-build/workspace/tcwg_gnu_1/abe/builds/x86_64-pc-linux-gnu/arm-linux-gnueabihf/gdb-gdb.git~master && /bin/bash /home/tcwg-build/workspace/tcwg_gnu_1/abe/snapshots/gdb.git~master/configure SHELL=/bin/bash  --with-gnu-ld --enable-plugins --enable-tui --with-pkgversion=Linaro_GDB-2025.10.31 --disable-gas --disable-binutils --disable-elfcpp --disable-ld --disable-gold --disable-gprof --with-python=python3 --disable-werror --with-auto-load-safe-path=\$debugdir:\$datadir/auto-load:/home/tcwg-build/workspace/tcwg_gnu_1/abe/builds/destdir/x86_64-pc-linux-gnu/arm-linux-gnueabihf --with-additional-debug-dirs=/usr/lib/debug --build=x86_64-pc-linux-gnu --host=x86_64-pc-linux-gnu --target=arm-linux-gnueabihf --prefix=/home/tcwg-build/workspace/tcwg_gnu_1/abe/builds/destdir/x86_64-pc-linux-gnu)
make SHELL=/bin/bash -w -C /home/tcwg-build/workspace/tcwg_gnu_1/abe/builds/x86_64-pc-linux-gnu/arm-linux-gnueabihf/gdb-gdb.git~master  -j 32 CFLAGS_FOR_BUILD="-pipe -g -O2" CXXFLAGS_FOR_BUILD="-pipe -g -O2" LDFLAGS_FOR_BUILD="-static-libgcc" all-gdb 2>&1 | tee -a /home/tcwg-build/workspace/tcwg_gnu_1/abe/builds/x86_64-pc-linux-gnu/arm-linux-gnueabihf/gdb-gdb.git~master/make-gdb.log
make install-gdb  -w -C /home/tcwg-build/workspace/tcwg_gnu_1/abe/builds/x86_64-pc-linux-gnu/arm-linux-gnueabihf/gdb-gdb.git~master 2>&1 | tee -a /home/tcwg-build/workspace/tcwg_gnu_1/abe/builds/x86_64-pc-linux-gnu/arm-linux-gnueabihf/gdb-gdb.git~master/make-gdb.log

# 10-build_abe-qemu
(cd /home/tcwg-build/workspace/tcwg_gnu_1/abe/builds/x86_64-pc-linux-gnu/arm-linux-gnueabihf/qemu-qemu.git~master && /bin/bash /home/tcwg-build/workspace/tcwg_gnu_1/abe/snapshots/qemu.git~master/configure   --target-list=arm-linux-user,arm-softmmu --prefix=/home/tcwg-build/workspace/tcwg_gnu_1/abe/builds/hosttools/x86_64-pc-linux-gnu)
make SHELL=/bin/bash -w -C /home/tcwg-build/workspace/tcwg_gnu_1/abe/builds/x86_64-pc-linux-gnu/arm-linux-gnueabihf/qemu-qemu.git~master  -j 32 CFLAGS_FOR_BUILD="-pipe -g -O2" CXXFLAGS_FOR_BUILD="-pipe -g -O2" LDFLAGS_FOR_BUILD="-static-libgcc" 2>&1 | tee -a /home/tcwg-build/workspace/tcwg_gnu_1/abe/builds/x86_64-pc-linux-gnu/arm-linux-gnueabihf/qemu-qemu.git~master/make-qemu.log
make install  -w -C /home/tcwg-build/workspace/tcwg_gnu_1/abe/builds/x86_64-pc-linux-gnu/arm-linux-gnueabihf/qemu-qemu.git~master 2>&1 | tee -a /home/tcwg-build/workspace/tcwg_gnu_1/abe/builds/x86_64-pc-linux-gnu/arm-linux-gnueabihf/qemu-qemu.git~master/make-qemu.log

# 11-build_abe-dejagnu
(cd /home/tcwg-build/workspace/tcwg_gnu_1/abe/builds/x86_64-pc-linux-gnu/arm-linux-gnueabihf/dejagnu-dejagnu.git~linaro-local~stable && /bin/bash /home/tcwg-build/workspace/tcwg_gnu_1/abe/snapshots/dejagnu.git~linaro-local~stable/configure SHELL=/bin/bash   --build=x86_64-pc-linux-gnu --host=x86_64-pc-linux-gnu --prefix=/home/tcwg-build/workspace/tcwg_gnu_1/abe/builds/hosttools/x86_64-pc-linux-gnu)
make SHELL=/bin/bash -w -C /home/tcwg-build/workspace/tcwg_gnu_1/abe/builds/x86_64-pc-linux-gnu/arm-linux-gnueabihf/dejagnu-dejagnu.git~linaro-local~stable  -j 32 CFLAGS_FOR_BUILD="-pipe -g -O2" CXXFLAGS_FOR_BUILD="-pipe -g -O2" LDFLAGS_FOR_BUILD="-static-libgcc" 2>&1 | tee -a /home/tcwg-build/workspace/tcwg_gnu_1/abe/builds/x86_64-pc-linux-gnu/arm-linux-gnueabihf/dejagnu-dejagnu.git~linaro-local~stable/make-dejagnu.log
make install  -w -C /home/tcwg-build/workspace/tcwg_gnu_1/abe/builds/x86_64-pc-linux-gnu/arm-linux-gnueabihf/dejagnu-dejagnu.git~linaro-local~stable 2>&1 | tee -a /home/tcwg-build/workspace/tcwg_gnu_1/abe/builds/x86_64-pc-linux-gnu/arm-linux-gnueabihf/dejagnu-dejagnu.git~linaro-local~stable/make-dejagnu.log

# 12-build_abe-check_gcc
make check FLAGS_UNDER_TEST=" --sysroot=/home/tcwg-build/workspace/tcwg_gnu_1/abe/builds/destdir/x86_64-pc-linux-gnu/arm-linux-gnueabihf/libc" PREFIX_UNDER_TEST="/home/tcwg-build/workspace/tcwg_gnu_1/abe/builds/destdir/x86_64-pc-linux-gnu/bin/arm-linux-gnueabihf-" QEMU_WRAPPER=/home/tcwg-build/workspace/tcwg_gnu_1/abe/scripts/qemu-wrapper.sh QEMU_CPU_UNDER_TEST=any   CFLAGS_FOR_BUILD="-pipe" CXXFLAGS_FOR_BUILD="-pipe" -j 64  -w -i -k -C /home/tcwg-build/workspace/tcwg_gnu_1/abe/builds/x86_64-pc-linux-gnu/arm-linux-gnueabihf/gcc-gcc.git~master-stage2/ >> /home/tcwg-build/workspace/tcwg_gnu_1/abe/builds/x86_64-pc-linux-gnu/arm-linux-gnueabihf/gcc-gcc.git~master-stage2/check-gcc.log 2>&1
make check-gcc-c FLAGS_UNDER_TEST=" --sysroot=/home/tcwg-build/workspace/tcwg_gnu_1/abe/builds/destdir/x86_64-pc-linux-gnu/arm-linux-gnueabihf/libc" PREFIX_UNDER_TEST="/home/tcwg-build/workspace/tcwg_gnu_1/abe/builds/destdir/x86_64-pc-linux-gnu/bin/arm-linux-gnueabihf-" QEMU_WRAPPER=/home/tcwg-build/workspace/tcwg_gnu_1/abe/scripts/qemu-wrapper.sh QEMU_CPU_UNDER_TEST=any   CFLAGS_FOR_BUILD="-pipe" CXXFLAGS_FOR_BUILD="-pipe" -j 64 RUNTESTFLAGS=" gcc.target/arm/arm.exp" -w -i -k -C /home/tcwg-build/workspace/tcwg_gnu_1/abe/builds/x86_64-pc-linux-gnu/arm-linux-gnueabihf/gcc-gcc.git~master-stage2/ >> /home/tcwg-build/workspace/tcwg_gnu_1/abe/builds/x86_64-pc-linux-gnu/arm-linux-gnueabihf/gcc-gcc.git~master-stage2/check-gcc.log 2>&1