mirror of
https://github.com/qemu/qemu.git
synced 2026-02-03 21:29:17 +00:00
91fc6d8101
MicroBlaze CPU model has a "little-endian" property, pointing to the @endi internal field. Commitc36ec3a965("hw/microblaze: Explicit CPU endianness") took care of having all MicroBlaze boards with an explicit default endianness, so later commit415aae543e("target/microblaze: Consider endianness while translating code") could infer the endianness at runtime from the @endi field, and not a compile time via the TARGET_BIG_ENDIAN definition. Doing so, we forgot to make the endianness explicit on user emulation, so there all CPUs are started with the default "little-endian=off" value, leading to breaking support for little endian binaries: $ readelf -h ./hello-world-mbel ELF Header: Magic: 7f 45 4c 46 01 01 01 00 00 00 00 00 00 00 00 00 Class: ELF32 Data: 2's complement, little endian $ qemu-microblazeel ./hello-world-mbel qemu: uncaught target signal 11 (Segmentation fault) - core dumped Segmentation fault (core dumped) Fix by restoring the previous behavior of starting with the builtin endianness of the binary: $ qemu-microblazeel ./hello-world-mbel Hello World Cc: qemu-stable@nongnu.org Fixes:415aae543e("target/microblaze: Consider endianness while translating code") Reported-by: Edgar E. Iglesias <edgar.iglesias@gmail.com> Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Edgar E. Iglesias <edgar.iglesias@amd.com> Message-Id: <20251006173350.17455-1-philmd@linaro.org>