1# 2# arch/x86/realmode/Makefile 3# 4# This file is subject to the terms and conditions of the GNU General Public 5# License. See the file "COPYING" in the main directory of this archive 6# for more details. 7# 8# 9KASAN_SANITIZE := n 10OBJECT_FILES_NON_STANDARD := y 11 12# Prevents link failures: __sanitizer_cov_trace_pc() is not linked in. 13KCOV_INSTRUMENT := n 14 15always := realmode.bin realmode.relocs 16 17wakeup-objs := wakeup_asm.o wakemain.o video-mode.o 18wakeup-objs += copy.o bioscall.o regs.o 19# The link order of the video-*.o modules can matter. In particular, 20# video-vga.o *must* be listed first, followed by video-vesa.o. 21# Hardware-specific drivers should follow in the order they should be 22# probed, and video-bios.o should typically be last. 23wakeup-objs += video-vga.o 24wakeup-objs += video-vesa.o 25wakeup-objs += video-bios.o 26 27realmode-y += header.o 28realmode-y += trampoline_$(BITS).o 29realmode-y += stack.o 30realmode-y += reboot.o 31realmode-$(CONFIG_ACPI_SLEEP) += $(wakeup-objs) 32 33targets += $(realmode-y) 34 35REALMODE_OBJS = $(addprefix $(obj)/,$(realmode-y)) 36 37sed-pasyms := -n -r -e 's/^([0-9a-fA-F]+) [ABCDGRSTVW] (.+)$$/pa_\2 = \2;/p' 38 39quiet_cmd_pasyms = PASYMS $@ 40 cmd_pasyms = $(NM) $(filter-out FORCE,$^) | \ 41 sed $(sed-pasyms) | sort | uniq > $@ 42 43targets += pasyms.h 44$(obj)/pasyms.h: $(REALMODE_OBJS) FORCE 45 $(call if_changed,pasyms) 46 47targets += realmode.lds 48$(obj)/realmode.lds: $(obj)/pasyms.h 49 50LDFLAGS_realmode.elf := --emit-relocs -T 51CPPFLAGS_realmode.lds += -P -C -I$(objtree)/$(obj) 52 53targets += realmode.elf 54$(obj)/realmode.elf: $(obj)/realmode.lds $(REALMODE_OBJS) FORCE 55 $(call if_changed,ld) 56 57OBJCOPYFLAGS_realmode.bin := -O binary 58 59targets += realmode.bin 60$(obj)/realmode.bin: $(obj)/realmode.elf $(obj)/realmode.relocs FORCE 61 $(call if_changed,objcopy) 62 63quiet_cmd_relocs = RELOCS $@ 64 cmd_relocs = arch/x86/tools/relocs --realmode $< > $@ 65 66targets += realmode.relocs 67$(obj)/realmode.relocs: $(obj)/realmode.elf FORCE 68 $(call if_changed,relocs) 69 70# --------------------------------------------------------------------------- 71 72KBUILD_CFLAGS := $(REALMODE_CFLAGS) -D_SETUP -D_WAKEUP \ 73 -I$(srctree)/arch/x86/boot 74KBUILD_AFLAGS := $(KBUILD_CFLAGS) -D__ASSEMBLY__ 75GCOV_PROFILE := n 76UBSAN_SANITIZE := n 77