Most relevant configure and test flags: none, autodetected on aarch64-unknown-linux-gnu

Full configure and make flags for each step:

# 04-build_abe-gdb
(cd /home/tcwg-buildslave/workspace/tcwg_gnu_3/abe/builds/aarch64-unknown-linux-gnu/aarch64-unknown-linux-gnu/gdb-gdb.git~master && /bin/bash /home/tcwg-buildslave/workspace/tcwg_gnu_3/abe/snapshots/gdb.git~master/configure SHELL=/bin/bash  --with-gnu-ld --enable-plugins --enable-tui --with-pkgversion=Linaro_GDB-2025.10.18 --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-buildslave/workspace/tcwg_gnu_3/abe/builds/destdir/aarch64-unknown-linux-gnu --with-additional-debug-dirs=/usr/lib/debug --build=aarch64-unknown-linux-gnu --host=aarch64-unknown-linux-gnu --target=aarch64-unknown-linux-gnu --prefix=/home/tcwg-buildslave/workspace/tcwg_gnu_3/abe/builds/destdir/aarch64-unknown-linux-gnu)
make SHELL=/bin/bash -w -C /home/tcwg-buildslave/workspace/tcwg_gnu_3/abe/builds/aarch64-unknown-linux-gnu/aarch64-unknown-linux-gnu/gdb-gdb.git~master  -j 64 LDFLAGS_FOR_TARGET="-Wl,-fix-cortex-a53-843419"  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-buildslave/workspace/tcwg_gnu_3/abe/builds/aarch64-unknown-linux-gnu/aarch64-unknown-linux-gnu/gdb-gdb.git~master/make-gdb.log
make SHELL=/bin/bash  -w -C /home/tcwg-buildslave/workspace/tcwg_gnu_3/abe/builds/aarch64-unknown-linux-gnu/aarch64-unknown-linux-gnu/gdb-gdb.git~master/gdb diststuff install-html install-info 2>&1 | tee -a /home/tcwg-buildslave/workspace/tcwg_gnu_3/abe/builds/aarch64-unknown-linux-gnu/aarch64-unknown-linux-gnu/gdb-gdb.git~master/make-gdb.log
make SHELL=/bin/bash  -w -C /home/tcwg-buildslave/workspace/tcwg_gnu_3/abe/builds/aarch64-unknown-linux-gnu/aarch64-unknown-linux-gnu/gdb-gdb.git~master/gdb/doc install-man 2>&1 | tee -a /home/tcwg-buildslave/workspace/tcwg_gnu_3/abe/builds/aarch64-unknown-linux-gnu/aarch64-unknown-linux-gnu/gdb-gdb.git~master/make-gdb.log
make install-gdb  -w -C /home/tcwg-buildslave/workspace/tcwg_gnu_3/abe/builds/aarch64-unknown-linux-gnu/aarch64-unknown-linux-gnu/gdb-gdb.git~master 2>&1 | tee -a /home/tcwg-buildslave/workspace/tcwg_gnu_3/abe/builds/aarch64-unknown-linux-gnu/aarch64-unknown-linux-gnu/gdb-gdb.git~master/make-gdb.log