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#
# arch/x86/kernel/acpi/realmode/Makefile
#
# This file is subject to the terms and conditions of the GNU General Public
# License. See the file "COPYING" in the main directory of this archive
# for more details.
#
always := wakeup.bin
targets := wakeup.elf wakeup.lds
wakeup-y += wakeup.o wakemain.o video-mode.o copy.o bioscall.o regs.o
# The link order of the video-*.o modules can matter. In particular,
# video-vga.o *must* be listed first, followed by video-vesa.o.
# Hardware-specific drivers should follow in the order they should be
# probed, and video-bios.o should typically be last.
wakeup-y += video-vga.o
wakeup-y += video-vesa.o
wakeup-y += video-bios.o
targets += $(wakeup-y)
bootsrc := $(src)/../../../boot
# ---------------------------------------------------------------------------
# How to compile the 16-bit code. Note we always compile for -march=i386,
# that way we can complain to the user if the CPU is insufficient.
# Compile with _SETUP since this is similar to the boot-time setup code.
KBUILD_CFLAGS := $(LINUXINCLUDE) -g -Os -D_SETUP -D_WAKEUP -D__KERNEL__ \
-I$(srctree)/$(bootsrc) \
$(cflags-y) \
-Wall -Wstrict-prototypes \
-march=i386 -mregparm=3 \
-include $(srctree)/$(bootsrc)/code16gcc.h \
-fno-strict-aliasing -fomit-frame-pointer \
$(call cc-option, -ffreestanding) \
$(call cc-option, -fno-toplevel-reorder,\
$(call cc-option, -fno-unit-at-a-time)) \
$(call cc-option, -fno-stack-protector) \
$(call cc-option, -mpreferred-stack-boundary=2)
KBUILD_CFLAGS += $(call cc-option, -m32)
KBUILD_AFLAGS := $(KBUILD_CFLAGS) -D__ASSEMBLY__
WAKEUP_OBJS = $(addprefix $(obj)/,$(wakeup-y))
LDFLAGS_wakeup.elf := -T
CPPFLAGS_wakeup.lds += -P -C
$(obj)/wakeup.elf: $(obj)/wakeup.lds $(WAKEUP_OBJS) FORCE
$(call if_changed,ld)
OBJCOPYFLAGS_wakeup.bin := -O binary
$(obj)/wakeup.bin: $(obj)/wakeup.elf FORCE
$(call if_changed,objcopy)
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