Hello, On 5/12/21 11:54 AM, Paolo Bonzini wrote: > As reported by Alexandru, ARM follows a different convention than > x86 so it needs __aeabi_ldivmod and __aeabi_uldivmod. Because > it does not use __divdi3 and __moddi3, it also needs __divmoddi4 > to build the eabi function upon. > > Paolo > > v1->v2: fix __divmoddi4, make sure -DTEST covers it > > Paolo Bonzini (2): > libcflat: clean up and complete long division routines > arm: add eabi version of 64-bit division functions > > arm/Makefile.arm | 1 + > lib/arm/ldivmod.S | 32 ++++++++++++++++++++++++++++++++ > lib/ldiv32.c | 40 ++++++++++++++++++++++++---------------- > 3 files changed, 57 insertions(+), 16 deletions(-) > create mode 100644 lib/arm/ldivmod.S > I ran the arm (compiled with arm-none-eabi-gcc and arm-linux-gnu-gcc) and arm64 tests under QEMU TCG, and everything worked as expected. I ran the arm (compiled with both toolchains) and arm64 tests under qemu and kvmtool on a Rockpro64 dev board, again I didn't encounter any issues. So for the entire series: Tested-by: Alexandru Elisei <alexandru.elisei@xxxxxxx> Thanks, Alex