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spapr/rtas: Force big endian compile for rtas 

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>
Message-Id: <20190612020723.96802-1-aik@ozlabs.ru>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
This commit is contained in:
Alexey Kardashevskiy 2019-06-12 12:07:23 +10:00 committed by David Gibson
parent 7d0e02405f
commit fad189d1f6
1 changed files with 4 additions and 1 deletions
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5
pc-bios/spapr-rtas/Makefile
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@ -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)$@")