1 files changed, 59 insertions, 0 deletions

diff --git a/arch/x86/kernel/acpi/realmode/Makefile b/arch/x86/kernel/acpi/realmode/Makefile
new file mode 100644
index 00000000000..6a564ac67ef
--- /dev/null
+++ b/arch/x86/kernel/acpi/realmode/Makefile
@@ -0,0 +1,59 @@
+#
+# 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__
+GCOV_PROFILE := n
+
+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)