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104 lines
2.8 KiB
Makefile
104 lines
2.8 KiB
Makefile
# Makefile.arm -- with config changes.
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# Copyright 1990 W. Jolitz
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# Makefile for FreeBSD
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#
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# This makefile is constructed from a machine description:
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# config machineid
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# Most changes should be made in the machine description
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# /sys/arm/conf/``machineid''
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# after which you should do
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# config machineid
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# Generic makefile changes should be made in
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# /sys/conf/Makefile.arm
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# after which config should be rerun for all machines.
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#
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# Which version of config(8) is required.
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%VERSREQ= 600013
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STD8X16FONT?= iso
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.if !defined(S)
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.if exists(./@/.)
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S= ./@
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.else
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S= ../../..
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.endif
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.endif
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.include "$S/conf/kern.pre.mk"
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INCLUDES+= -I$S/contrib/libfdt -I$S/contrib/device-tree/include -I$S/dts/include
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LINUX_DTS_VERSION!= awk '/freebsd,dts-version/ { sub(/;$$/,"", $$NF); print $$NF }' $S/dts/freebsd-compatible.dts
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CFLAGS += -DLINUX_DTS_VERSION=\"${LINUX_DTS_VERSION}\"
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.if !defined(DEBUG)
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STRIP_FLAGS = -S
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.endif
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# We don't support gcc's thump interwork stuff, so disable it
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CFLAGS.gcc += -mno-thumb-interwork
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# We generally don't want fpu instructions in the kernel.
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CFLAGS.clang += -mfpu=none
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.if !empty(DDB_ENABLED)
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CFLAGS += -funwind-tables
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.endif
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# "makeoptions KERNVIRTADDR=" is now optional, supply the default value.
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.if empty(KERNVIRTADDR)
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KERNVIRTADDR= 0xc0000000
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.endif
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# Use a custom SYSTEM_LD command to generate the elf kernel, so we can
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# set the text segment start address, and also strip the "arm mapping
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# symbols" which have names like $a.0 and $d.2; see the document
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# "ELF for the ARM architecture" for more info on the mapping symbols.
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SYSTEM_LD= \
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${SYSTEM_LD_BASECMD} \
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--defsym='text_start=kernbase + SIZEOF_HEADERS' \
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-o ${.TARGET} ${SYSTEM_OBJS} vers.o; \
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$(OBJCOPY) \
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--wildcard \
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--strip-symbol='$$[adt]*' \
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${.TARGET}
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# hack because genassym.c includes sys/bus.h which includes these.
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genassym.o: bus_if.h device_if.h
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%BEFORE_DEPEND
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%OBJS
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%FILES.c
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%FILES.s
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%FILES.m
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%CLEAN
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%RULES
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.include "$S/conf/kern.post.mk"
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# Generate the .bin (no elf headers) kernel
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# Copy the kernel to directly executable format (the elf headers are
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# stripped and a binary head blob with jump to kernel start address is
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# prepended), saving the output in a temp file.
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# We also strip arm "marker" symbols which are used only by elf toolchains. Read
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# the symbols from kernel.full and pass them to arm_kernel_boothdr.awk, which
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# generates a binary header blob that goes on the front of the stripped kernel.
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# Cat the header blob and the temp file together to make the kernel.bin file.
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${KERNEL_KO}.bin: ${FULLKERNEL}
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@${OBJCOPY} --wildcard --strip-symbol='$$[adtx]*' \
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--output-target=binary ${FULLKERNEL} ${.TARGET}.temp
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@{ ${NM} ${FULLKERNEL} | \
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LC_ALL=C \
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${AWK} -f $S/tools/arm_kernel_boothdr.awk -v hdrtype=v7jump && \
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cat ${.TARGET}.temp; \
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} > ${.TARGET}
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@rm ${.TARGET}.temp
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@echo "created ${.TARGET} from ${.ALLSRC}"
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