#
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# arch/x86/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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#
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# Sanitizer runtimes are unavailable and cannot be linked here.
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KASAN_SANITIZE := n
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KCSAN_SANITIZE := n
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OBJECT_FILES_NON_STANDARD := y
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# Prevents link failures: __sanitizer_cov_trace_pc() is not linked in.
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KCOV_INSTRUMENT := n
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always-y := realmode.bin realmode.relocs
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wakeup-objs := wakeup_asm.o wakemain.o video-mode.o
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wakeup-objs += copy.o bioscall.o regs.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-objs += video-vga.o
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wakeup-objs += video-vesa.o
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wakeup-objs += video-bios.o
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realmode-y += header.o
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realmode-y += trampoline_$(BITS).o
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realmode-y += stack.o
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realmode-y += reboot.o
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realmode-$(CONFIG_ACPI_SLEEP) += $(wakeup-objs)
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targets += $(realmode-y)
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REALMODE_OBJS = $(addprefix $(obj)/,$(realmode-y))
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sed-pasyms := -n -r -e 's/^([0-9a-fA-F]+) [ABCDGRSTVW] (.+)$$/pa_\2 = \2;/p'
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quiet_cmd_pasyms = PASYMS $@
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cmd_pasyms = $(NM) $(real-prereqs) | sed $(sed-pasyms) | sort | uniq > $@
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targets += pasyms.h
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$(obj)/pasyms.h: $(REALMODE_OBJS) FORCE
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$(call if_changed,pasyms)
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targets += realmode.lds
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$(obj)/realmode.lds: $(obj)/pasyms.h
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LDFLAGS_realmode.elf := -m elf_i386 --emit-relocs -T
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CPPFLAGS_realmode.lds += -P -C -I$(objtree)/$(obj)
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targets += realmode.elf
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$(obj)/realmode.elf: $(obj)/realmode.lds $(REALMODE_OBJS) FORCE
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$(call if_changed,ld)
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OBJCOPYFLAGS_realmode.bin := -O binary
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targets += realmode.bin
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$(obj)/realmode.bin: $(obj)/realmode.elf $(obj)/realmode.relocs FORCE
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$(call if_changed,objcopy)
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quiet_cmd_relocs = RELOCS $@
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cmd_relocs = arch/x86/tools/relocs --realmode $< > $@
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targets += realmode.relocs
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$(obj)/realmode.relocs: $(obj)/realmode.elf FORCE
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$(call if_changed,relocs)
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# ---------------------------------------------------------------------------
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KBUILD_CFLAGS := $(REALMODE_CFLAGS) -D_SETUP -D_WAKEUP \
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-I$(srctree)/arch/x86/boot
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KBUILD_AFLAGS := $(KBUILD_CFLAGS) -D__ASSEMBLY__
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KBUILD_CFLAGS += -fno-asynchronous-unwind-tables
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GCOV_PROFILE := n
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UBSAN_SANITIZE := n
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