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 30# Use a custom SYSTEM_LD command to generate the elf kernel, so we can 31# set the text segment start address, and also strip the "arm mapping 32# symbols" which have names like $a.0 and $d.2; see the document 33# "ELF for the ARM architecture" for more info on the mapping symbols. 34SYSTEM_LD= \ 35 ${SYSTEM_LD_BASECMD} \ 36 --defsym='text_start=kernbase + SIZEOF_HEADERS' \ 37 -o ${.TARGET} ${SYSTEM_OBJS} vers.o; \ 38 $(OBJCOPY) \ 39 --wildcard \ 40 --strip-symbol='$$[adtx]*' \ 41 ${.TARGET} 42 43# Generate the .bin (booti images) kernel as an extra build output. 44# The targets and rules to generate these appear near the end of the file. 45KERNEL_EXTRA+= ${KERNEL_KO}.bin 46KERNEL_EXTRA_INSTALL+= ${KERNEL_KO}.bin 47 48.if !empty(DDB_ENABLED) || !empty(DTR_ENABLED) || !empty(HWPMC_ENABLED) 49CFLAGS += -fno-omit-frame-pointer -mno-omit-leaf-frame-pointer 50.endif 51 52%BEFORE_DEPEND 53 54%OBJS 55 56%FILES.c 57 58%FILES.s 59 60%FILES.m 61 62%CLEAN 63CLEAN+= ${KERNEL_KO}.bin 64 65%RULES 66 67.include "$S/conf/kern.post.mk" 68 69# Create a kernel.bin file... 70# Copy the kernel to u-boot's booti image format (the elf headers are 71# stripped and a custom binary head blob is prepended), saving the 72# output in a temp file. We also strip arm "marker" symbols which are 73# used only by elf toolchains. Read the symbols from kernel.full and pass 74# them to arm_kernel_boothdr.awk, which generates a binary header blob 75# that goes on the front of the stripped kernel. Cat the header blob 76# and the temp file together to make the kernel.bin file. 77${KERNEL_KO}.bin: ${FULLKERNEL} 78 @${OBJCOPY} --wildcard --strip-symbol='$$[adtx]*' \ 79 --output-target=binary ${.ALLSRC} ${.TARGET}.temp 80 @{ readelf -s ${.ALLSRC} | \ 81 ${AWK} -f $S/tools/arm_kernel_boothdr.awk -v hdrtype=v8booti && \ 82 cat ${.TARGET}.temp; \ 83 } > ${.TARGET} 84 @rm ${.TARGET}.temp 85 @echo "created ${.TARGET} from ${.ALLSRC}" 86