7a734e7dd9
Impact: new interfaces (not yet used) For all the platforms out there, there is an infinite number of buggy BIOSes. This adds infrastructure to treat BIOS interrupts more like toxic waste and "glove box" them -- we switch out the register set, perform the BIOS interrupt, and then restore the previous state. LKML-Reference: <49DE7F79.4030106@zytor.com> Signed-off-by: H. Peter Anvin <hpa@linux.intel.com> Cc: Pavel Machek <pavel@ucw.cz> Cc: Rafael J. Wysocki <rjw@sisk.pl>
59 lines
1.9 KiB
Makefile
59 lines
1.9 KiB
Makefile
#
|
|
# 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)
|