[Qemu-devel] [PATCH qemu REPOST] spapr/rtas: Force big endian compile for rtas

[Alexey Kardashevskiy <aik@ozlabs.ru>]

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 <aik@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