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 $$NF }' $S/dts/freebsd-compatible.dts 31CFLAGS += -DLINUX_DTS_VERSION=\"${LINUX_DTS_VERSION}\" 32 33PERTHREAD_SSP_ENABLED!= grep PERTHREAD_SSP opt_global.h || true ; echo 34.if !empty(PERTHREAD_SSP_ENABLED) 35. if ${COMPILER_TYPE} == "clang" && ${COMPILER_VERSION} >= 130000 36ARM64_SSP_CFLAGS = -mstack-protector-guard=sysreg 37ARM64_SSP_CFLAGS += -mstack-protector-guard-reg=sp_el0 38ARM64_SSP_CFLAGS += -mstack-protector-guard-offset=0 39. else 40ARM64_SSP_CFLAGS += -DPERTHREAD_SSP_WARNING 41. warning "Compiler is too old to support PERTHREAD_SSP" 42. endif 43CFLAGS += ${ARM64_SSP_CFLAGS} 44ARCH_FLAGS += ${ARM64_SSP_CFLAGS} 45.endif 46 47# Use a custom SYSTEM_LD command to generate the elf kernel, so we can 48# set the text segment start address, and also strip the "arm mapping 49# symbols" which have names like $a.0 and $d.2; see the document 50# "ELF for the ARM architecture" for more info on the mapping symbols. 51SYSTEM_LD= \ 52 ${SYSTEM_LD_BASECMD} \ 53 --defsym='text_start=kernbase + SIZEOF_HEADERS' \ 54 -o ${.TARGET} ${SYSTEM_OBJS} vers.o; \ 55 $(OBJCOPY) \ 56 --wildcard \ 57 --strip-symbol='$$[adtx]*' \ 58 ${.TARGET} 59 60# Generate the .bin (booti images) kernel as an extra build output. 61# The targets and rules to generate these appear near the end of the file. 62KERNEL_EXTRA+= ${KERNEL_KO}.bin 63KERNEL_EXTRA_INSTALL+= ${KERNEL_KO}.bin 64 65.if !empty(DDB_ENABLED) || !empty(DTRACE_ENABLED) || !empty(HWPMC_ENABLED) 66CFLAGS += -fno-omit-frame-pointer -mno-omit-leaf-frame-pointer 67.endif 68 69%BEFORE_DEPEND 70 71%OBJS 72 73%FILES.c 74 75%FILES.s 76 77%FILES.m 78 79%CLEAN 80CLEAN+= ${KERNEL_KO}.bin 81 82%RULES 83 84.include "$S/conf/kern.post.mk" 85 86# Create a kernel.bin file... 87# Copy the kernel to u-boot's booti image format (the elf headers are 88# stripped and a custom binary head blob is prepended), saving the 89# output in a temp file. We also strip arm "marker" symbols which are 90# used only by elf toolchains. Read the symbols from kernel.full and pass 91# them to arm_kernel_boothdr.awk, which generates a binary header blob 92# that goes on the front of the stripped kernel. Cat the header blob 93# and the temp file together to make the kernel.bin file. 94${KERNEL_KO}.bin: ${FULLKERNEL} 95 @${OBJCOPY} --wildcard --strip-symbol='$$[adtx]*' \ 96 --output-target=binary ${FULLKERNEL} ${.TARGET}.temp 97 @{ ${NM} ${FULLKERNEL} | \ 98 ${AWK} -f $S/tools/arm_kernel_boothdr.awk -v hdrtype=v8booti && \ 99 cat ${.TARGET}.temp; \ 100 } > ${.TARGET} 101 @rm ${.TARGET}.temp 102 @echo "created ${.TARGET} from ${.ALLSRC}" 103