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Could you take care of this? I have next to no idea about microblaze. >> >> On little endian this is passing. I can add it to my todo list but big >> endian is very very old and likely none is using it anymore. > > If it is not supposed to work maybe mark it as BROKEN or disable the > custom memmove() implementation there and instead rely on the generic > one from lib/string.c? This should be enough. Do you want to send a patch for it? diff --git a/arch/microblaze/Kconfig.platform b/arch/microblaze/Kconfig.platform index 9cf9007ed69a..2d7c21767215 100644 --- a/arch/microblaze/Kconfig.platform +++ b/arch/microblaze/Kconfig.platform @@ -10,6 +10,7 @@ menu "Platform options" config OPT_LIB_FUNCTION bool "Optimized lib function" default y + depends on CPU_BIG_ENDIAN help Turns on optimized library functions (memcpy and memmove). They are optimized by using word alignment. This will work @@ -21,7 +22,6 @@ config OPT_LIB_FUNCTION config OPT_LIB_ASM bool "Optimized lib function ASM" depends on OPT_LIB_FUNCTION && (XILINX_MICROBLAZE0_USE_BARREL = 1) - depends on CPU_BIG_ENDIAN default n help Turns on optimized library functions (memcpy and memmove). >>> >>>> This should be fragment for Little endian. >>> >>> Thanks, unfortunately this hangs for me with my distros QEMU 11.1.0. >>> No output, 100% CPU usage during boot. I am using qemu-system-microblaze >>> instead of qemu-system-microblazel, as the latter is not available >>> anymore, but the former is documented to also handle little endian >>> automatically. >>> >> >> I built the latest qemu like this >> >> ../qemu/configure --target-list=microblaze-softmmu,microblaze-linux-user,microblazeel-linux-user >> --enable-gcrypt --disable-docs >> >> /mnt/projects/xilinx-new-git/qemu.org/build-microblaze/qemu-system-microblaze >> --version >> QEMU emulator version 11.1.50 (v11.1.0-779-gd2e570cc0f97) > > For me it still doesn't work. I am using the same build of QEMU and GCC > 13.4.0 (or 16.2.0) from crosstools.kernel.org. I am not a toolchain expert. I do use toolchains from Xilinx design tools and I have also tried toolchains from buildroot. Linux version 7.3.0-rc1-00017-g139833dc9bf4 (monstr@monstr-desktop3) (microblazeel-buildroot-linux-uclibc-gcc.br_real (Buildroot 2026.08-rc3-13-geaf7a45ddfdc) 15.3.0, GNU ld (GNU Binutils) 2.45.1) #1 Wed Sep 2 12:39:02 CEST 2026 But keep in mind that there is a need to have v15.3.0 or 16.2.0 toolchain fixed by this https://lore.kernel.org/all/20260902040121.1583600-1-neal.frager@amd.com/ Thanks, Michal