At the moment the rtas's Makefile uses generic QEMU rules which means that when QEMU is compiled on a little endian system, the spapr-rtas.bin is compiled as little endian too which is incorrect as it is always executed in big endian mode.
This enforces -mbig by defining %.o:%.S rule as spapr-rtas.bin is a standalone guest binary which should not depend on QEMU flags anyway. Signed-off-by: Alexey Kardashevskiy <a...@ozlabs.ru> --- pc-bios/spapr-rtas/Makefile | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/pc-bios/spapr-rtas/Makefile b/pc-bios/spapr-rtas/Makefile index f26dd428b79e..4b9bb1230658 100644 --- a/pc-bios/spapr-rtas/Makefile +++ b/pc-bios/spapr-rtas/Makefile @@ -14,8 +14,11 @@ $(call set-vpath, $(SRC_PATH)/pc-bios/spapr-rtas) build-all: spapr-rtas.bin +%.o: %.S + $(call quiet-command,$(CCAS) -mbig -c -o $@ $<,"CCAS","$(TARGET_DIR)$@") + %.img: %.o - $(call quiet-command,$(CC) -nostdlib -o $@ $<,"Building","$(TARGET_DIR)$@") + $(call quiet-command,$(CC) -nostdlib -mbig -o $@ $<,"Building","$(TARGET_DIR)$@") %.bin: %.img $(call quiet-command,$(OBJCOPY) -O binary -j .text $< $@,"Building","$(TARGET_DIR)$@") -- 2.17.1