e44b7b7525
Move wakeup code to .c, so that video mode setting code can be shared between boot and wakeup. Remove nasty assembly code in 64-bit case by re-using trampoline code. Stack setup was fixed to clear high 16bits of %esp, maybe that fixes some machines. .c code sharing and morse code was done H. Peter Anvin, Sam Ravnborg reviewed kbuild related stuff, and it seems okay to him. Rafael did some cleanups. [rjw: * Made the patch stop breaking compilation on x86-32 * Added arch/x86/kernel/acpi/sleep.h * Got rid of compiler warnings in arch/x86/kernel/acpi/sleep.c * Fixed 32-bit compilation on x86-64 systems * Added include/asm-x86/trampoline.h and fixed the non-SMP compilation on 64-bit x86 * Removed arch/x86/kernel/acpi/sleep_32.c which was not used * Fixed some breakage caused by the integration of smpboot.c done under us in the meantime] Signed-off-by: Pavel Machek <pavel@suse.cz> Signed-off-by: H. Peter Anvin <hpa@zytor.com> Reviewed-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Signed-off-by: Ingo Molnar <mingo@elte.hu>
58 lines
1.9 KiB
Makefile
58 lines
1.9 KiB
Makefile
#
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# arch/x86/kernel/acpi/realmode/Makefile
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#
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# This file is subject to the terms and conditions of the GNU General Public
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# License. See the file "COPYING" in the main directory of this archive
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# for more details.
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#
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targets := wakeup.bin wakeup.elf
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wakeup-y += wakeup.o wakemain.o video-mode.o copy.o
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# The link order of the video-*.o modules can matter. In particular,
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# video-vga.o *must* be listed first, followed by video-vesa.o.
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# Hardware-specific drivers should follow in the order they should be
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# probed, and video-bios.o should typically be last.
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wakeup-y += video-vga.o
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wakeup-y += video-vesa.o
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wakeup-y += video-bios.o
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targets += $(wakeup-y)
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bootsrc := $(src)/../../../boot
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# ---------------------------------------------------------------------------
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# How to compile the 16-bit code. Note we always compile for -march=i386,
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# that way we can complain to the user if the CPU is insufficient.
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# Compile with _SETUP since this is similar to the boot-time setup code.
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KBUILD_CFLAGS := $(LINUXINCLUDE) -g -Os -D_SETUP -D_WAKEUP -D__KERNEL__ \
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-I$(srctree)/$(bootsrc) \
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$(cflags-y) \
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-Wall -Wstrict-prototypes \
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-march=i386 -mregparm=3 \
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-include $(srctree)/$(bootsrc)/code16gcc.h \
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-fno-strict-aliasing -fomit-frame-pointer \
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$(call cc-option, -ffreestanding) \
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$(call cc-option, -fno-toplevel-reorder,\
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$(call cc-option, -fno-unit-at-a-time)) \
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$(call cc-option, -fno-stack-protector) \
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$(call cc-option, -mpreferred-stack-boundary=2)
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KBUILD_CFLAGS += $(call cc-option, -m32)
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KBUILD_AFLAGS := $(KBUILD_CFLAGS) -D__ASSEMBLY__
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WAKEUP_OBJS = $(addprefix $(obj)/,$(wakeup-y))
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LDFLAGS_wakeup.elf := -T
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CPPFLAGS_wakeup.lds += -P -C
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$(obj)/wakeup.elf: $(src)/wakeup.lds $(WAKEUP_OBJS) FORCE
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$(call if_changed,ld)
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OBJCOPYFLAGS_wakeup.bin := -O binary
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$(obj)/wakeup.bin: $(obj)/wakeup.elf FORCE
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$(call if_changed,objcopy)
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