| # | |
| # 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 |