| # |
| # arch/x86/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 := realmode.bin realmode.relocs |
| |
| wakeup-objs := wakeup_asm.o wakemain.o video-mode.o |
| wakeup-objs += 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-objs += video-vga.o |
| wakeup-objs += video-vesa.o |
| wakeup-objs += video-bios.o |
| |
| realmode-y += header.o |
| realmode-y += trampoline_$(BITS).o |
| realmode-y += stack.o |
| realmode-y += reboot.o |
| realmode-$(CONFIG_ACPI_SLEEP) += $(wakeup-objs) |
| |
| targets += $(realmode-y) |
| |
| REALMODE_OBJS = $(addprefix $(obj)/,$(realmode-y)) |
| |
| sed-pasyms := -n -r -e 's/^([0-9a-fA-F]+) [ABCDGRSTVW] (.+)$$/pa_\2 = \2;/p' |
| |
| quiet_cmd_pasyms = PASYMS $@ |
| cmd_pasyms = $(NM) $(filter-out FORCE,$^) | \ |
| sed $(sed-pasyms) | sort | uniq > $@ |
| |
| targets += pasyms.h |
| $(obj)/pasyms.h: $(REALMODE_OBJS) FORCE |
| $(call if_changed,pasyms) |
| |
| targets += realmode.lds |
| $(obj)/realmode.lds: $(obj)/pasyms.h |
| |
| LDFLAGS_realmode.elf := --emit-relocs -T |
| CPPFLAGS_realmode.lds += -P -C -I$(obj) |
| |
| targets += realmode.elf |
| $(obj)/realmode.elf: $(obj)/realmode.lds $(REALMODE_OBJS) FORCE |
| $(call if_changed,ld) |
| |
| OBJCOPYFLAGS_realmode.bin := -O binary |
| |
| targets += realmode.bin |
| $(obj)/realmode.bin: $(obj)/realmode.elf $(obj)/realmode.relocs |
| $(call if_changed,objcopy) |
| |
| quiet_cmd_relocs = RELOCS $@ |
| cmd_relocs = arch/x86/tools/relocs --realmode $< > $@ |
| |
| targets += realmode.relocs |
| $(obj)/realmode.relocs: $(obj)/realmode.elf FORCE |
| $(call if_changed,relocs) |
| |
| # --------------------------------------------------------------------------- |
| |
| # 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. |
| KBUILD_CFLAGS := $(LINUXINCLUDE) -m32 -g -Os -D_SETUP -D__KERNEL__ -D_WAKEUP \ |
| -I$(srctree)/arch/x86/boot \ |
| -DDISABLE_BRANCH_PROFILING \ |
| -Wall -Wstrict-prototypes \ |
| -march=i386 -mregparm=3 \ |
| -include $(srctree)/$(src)/../../boot/code16gcc.h \ |
| -fno-strict-aliasing -fomit-frame-pointer -fno-pic \ |
| -mno-mmx -mno-sse \ |
| $(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_AFLAGS := $(KBUILD_CFLAGS) -D__ASSEMBLY__ |
| GCOV_PROFILE := n |