2 # arch/x86/kernel/acpi/realmode/Makefile
4 # This file is subject to the terms and conditions of the GNU General Public
5 # License. See the file "COPYING" in the main directory of this archive
9 targets
:= wakeup.bin wakeup.elf
11 wakeup-y
+= wakeup.o wakemain.o video-mode.o copy.o
13 # The link order of the video-*.o modules can matter. In particular,
14 # video-vga.o *must* be listed first, followed by video-vesa.o.
15 # Hardware-specific drivers should follow in the order they should be
16 # probed, and video-bios.o should typically be last.
17 wakeup-y
+= video-vga.o
18 wakeup-y
+= video-vesa.o
19 wakeup-y
+= video-bios.o
21 targets
+= $(wakeup-y
)
23 bootsrc
:= $(src
)/..
/..
/..
/boot
25 # ---------------------------------------------------------------------------
27 # How to compile the 16-bit code. Note we always compile for -march=i386,
28 # that way we can complain to the user if the CPU is insufficient.
29 # Compile with _SETUP since this is similar to the boot-time setup code.
30 KBUILD_CFLAGS
:= $(LINUXINCLUDE
) -g
-Os
-D_SETUP
-D_WAKEUP
-D__KERNEL__ \
31 -I
$(srctree
)/$(bootsrc
) \
33 -Wall
-Wstrict-prototypes \
34 -march
=i386
-mregparm
=3 \
35 -include $(srctree
)/$(bootsrc
)/code16gcc.h \
36 -fno-strict-aliasing
-fomit-frame-pointer \
37 $(call cc-option
, -ffreestanding
) \
38 $(call cc-option
, -fno-toplevel-reorder
,\
39 $(call cc-option
, -fno-unit-at-a-time
)) \
40 $(call cc-option
, -fno-stack-protector
) \
41 $(call cc-option
, -mpreferred-stack-boundary
=2)
42 KBUILD_CFLAGS
+= $(call cc-option
, -m32
)
43 KBUILD_AFLAGS
:= $(KBUILD_CFLAGS
) -D__ASSEMBLY__
45 WAKEUP_OBJS
= $(addprefix $(obj
)/,$(wakeup-y
))
47 LDFLAGS_wakeup.elf
:= -T
49 CPPFLAGS_wakeup.lds
+= -P
-C
51 $(obj
)/wakeup.elf
: $(src
)/wakeup.lds
$(WAKEUP_OBJS
) FORCE
54 OBJCOPYFLAGS_wakeup.bin
:= -O binary
56 $(obj
)/wakeup.bin
: $(obj
)/wakeup.elf FORCE
57 $(call if_changed
,objcopy
)