2 # arch/x86/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
10 OBJECT_FILES_NON_STANDARD := y
12 always := realmode.bin realmode.relocs
14 wakeup-objs := wakeup_asm.o wakemain.o video-mode.o
15 wakeup-objs += copy.o bioscall.o regs.o
16 # The link order of the video-*.o modules can matter. In particular,
17 # video-vga.o *must* be listed first, followed by video-vesa.o.
18 # Hardware-specific drivers should follow in the order they should be
19 # probed, and video-bios.o should typically be last.
20 wakeup-objs += video-vga.o
21 wakeup-objs += video-vesa.o
22 wakeup-objs += video-bios.o
24 realmode-y += header.o
25 realmode-y += trampoline_$(BITS).o
27 realmode-y += reboot.o
28 realmode-$(CONFIG_ACPI_SLEEP) += $(wakeup-objs)
30 targets += $(realmode-y)
32 REALMODE_OBJS = $(addprefix $(obj)/,$(realmode-y))
34 sed-pasyms := -n -r -e 's/^([0-9a-fA-F]+) [ABCDGRSTVW] (.+)$$/pa_\2 = \2;/p'
36 quiet_cmd_pasyms = PASYMS $@
37 cmd_pasyms = $(NM) $(filter-out FORCE,$^) | \
38 sed $(sed-pasyms) | sort | uniq > $@
41 $(obj)/pasyms.h: $(REALMODE_OBJS) FORCE
42 $(call if_changed,pasyms)
44 targets += realmode.lds
45 $(obj)/realmode.lds: $(obj)/pasyms.h
47 LDFLAGS_realmode.elf := --emit-relocs -T
48 CPPFLAGS_realmode.lds += -P -C -I$(obj)
50 targets += realmode.elf
51 $(obj)/realmode.elf: $(obj)/realmode.lds $(REALMODE_OBJS) FORCE
54 OBJCOPYFLAGS_realmode.bin := -O binary
56 targets += realmode.bin
57 $(obj)/realmode.bin: $(obj)/realmode.elf $(obj)/realmode.relocs FORCE
58 $(call if_changed,objcopy)
61 quiet_cmd_relocs = RELOCS $@
62 cmd_relocs = arch/x86/tools/relocs --realmode $< > $@
64 targets += realmode.relocs
65 $(obj)/realmode.relocs: $(obj)/realmode.elf FORCE
66 $(call if_changed,relocs)
68 # ---------------------------------------------------------------------------
70 KBUILD_CFLAGS := $(LINUXINCLUDE) $(REALMODE_CFLAGS) -D_SETUP -D_WAKEUP \
71 -I$(srctree)/arch/x86/boot
72 KBUILD_AFLAGS := $(KBUILD_CFLAGS) -D__ASSEMBLY__