1# Makefile.arm64 -- with config changes. 2# Copyright 1990 W. Jolitz 3# from: @(#)Makefile.i386 7.1 5/10/91 4# from FreeBSD: src/sys/conf/Makefile.i386,v 1.255 2002/02/20 23:35:49 5# $FreeBSD$ 6# 7# Makefile for FreeBSD 8# 9# This makefile is constructed from a machine description: 10# config machineid 11# Most changes should be made in the machine description 12# /sys/arm64/conf/``machineid'' 13# after which you should do 14# config machineid 15# Generic makefile changes should be made in 16# /sys/conf/Makefile.arm64 17# after which config should be rerun for all machines. 18# 19 20# Which version of config(8) is required. 21%VERSREQ= 600012 22 23.if !defined(S) 24S= ../../.. 25.endif 26.include "$S/conf/kern.pre.mk" 27 28INCLUDES+= -I$S/contrib/libfdt -I$S/contrib/device-tree/include 29 30LINUX_DTS_VERSION!= awk '/freebsd,dts-version/ { sub(/;$$/,"", $$NF); print $$NF }' $S/dts/freebsd-compatible.dts 31CFLAGS += -DLINUX_DTS_VERSION=\"${LINUX_DTS_VERSION}\" 32 33# Use a custom SYSTEM_LD command to generate the elf kernel, so we can 34# set the text segment start address, and also strip the "arm mapping 35# symbols" which have names like $a.0 and $d.2; see the document 36# "ELF for the ARM architecture" for more info on the mapping symbols. 37SYSTEM_LD= \ 38 ${SYSTEM_LD_BASECMD} \ 39 --defsym='text_start=kernbase + SIZEOF_HEADERS' \ 40 -o ${.TARGET} ${SYSTEM_OBJS} vers.o; \ 41 $(OBJCOPY) \ 42 --wildcard \ 43 --strip-symbol='$$[adtx]*' \ 44 ${.TARGET} 45 46# Generate the .bin (booti images) kernel as an extra build output. 47# The targets and rules to generate these appear near the end of the file. 48KERNEL_EXTRA+= ${KERNEL_KO}.bin 49KERNEL_EXTRA_INSTALL+= ${KERNEL_KO}.bin 50 51.if !empty(DDB_ENABLED) || !empty(DTR_ENABLED) || !empty(HWPMC_ENABLED) 52CFLAGS += -fno-omit-frame-pointer -mno-omit-leaf-frame-pointer 53.endif 54 55%BEFORE_DEPEND 56 57%OBJS 58 59%FILES.c 60 61%FILES.s 62 63%FILES.m 64 65%CLEAN 66CLEAN+= ${KERNEL_KO}.bin 67 68%RULES 69 70.include "$S/conf/kern.post.mk" 71 72# Create a kernel.bin file... 73# Copy the kernel to u-boot's booti image format (the elf headers are 74# stripped and a custom binary head blob is prepended), saving the 75# output in a temp file. We also strip arm "marker" symbols which are 76# used only by elf toolchains. Read the symbols from kernel.full and pass 77# them to arm_kernel_boothdr.awk, which generates a binary header blob 78# that goes on the front of the stripped kernel. Cat the header blob 79# and the temp file together to make the kernel.bin file. 80${KERNEL_KO}.bin: ${FULLKERNEL} 81 @${OBJCOPY} --wildcard --strip-symbol='$$[adtx]*' \ 82 --output-target=binary ${.ALLSRC} ${.TARGET}.temp 83 @{ readelf -s ${.ALLSRC} | \ 84 ${AWK} -f $S/tools/arm_kernel_boothdr.awk -v hdrtype=v8booti && \ 85 cat ${.TARGET}.temp; \ 86 } > ${.TARGET} 87 @rm ${.TARGET}.temp 88 @echo "created ${.TARGET} from ${.ALLSRC}" 89