1# Makefile.arm -- with config changes. 2# Copyright 1990 W. Jolitz 3# from: @(#)Makefile.i386 7.1 5/10/91 4# $FreeBSD$ 5# 6# Makefile for FreeBSD 7# 8# This makefile is constructed from a machine description: 9# config machineid 10# Most changes should be made in the machine description 11# /sys/arm/conf/``machineid'' 12# after which you should do 13# config machineid 14# Generic makefile changes should be made in 15# /sys/conf/Makefile.arm 16# after which config should be rerun for all machines. 17# 18 19# Which version of config(8) is required. 20%VERSREQ= 600013 21 22STD8X16FONT?= iso 23 24.if !defined(S) 25.if exists(./@/.) 26S= ./@ 27.else 28S= ../../.. 29.endif 30.endif 31.include "$S/conf/kern.pre.mk" 32 33INCLUDES+= -I$S/contrib/libfdt -I$S/gnu/dts/include 34 35.if !defined(DEBUG) && !defined(PROFLEVEL) 36STRIP_FLAGS = -S 37.endif 38 39# We don't support gcc's thump interwork stuff, so disable it 40CFLAGS.gcc += -mno-thumb-interwork 41 42# We generally don't want fpu instructions in the kernel. 43CFLAGS.clang += -mfpu=none 44 45.if !empty(DDB_ENABLED) 46CFLAGS += -funwind-tables 47.endif 48 49# "makeoptions KERNVIRTADDR=" is now optional, supply the default value. 50.if empty(KERNVIRTADDR) 51KERNVIRTADDR= 0xc0000000 52.endif 53 54# Use a custom SYSTEM_LD command to generate the elf kernel, so we can 55# set the text segment start address, and also strip the "arm mapping 56# symbols" which have names like $a.0 and $d.2; see the document 57# "ELF for the ARM architecture" for more info on the mapping symbols. 58SYSTEM_LD= \ 59 ${SYSTEM_LD_BASECMD} \ 60 --defsym='text_start=kernbase + SIZEOF_HEADERS' \ 61 -o ${.TARGET} ${SYSTEM_OBJS} vers.o; \ 62 $(OBJCOPY) \ 63 --wildcard \ 64 --strip-symbol='$$[adt]*' \ 65 ${.TARGET} 66 67# Generate the .bin (no elf headers) kernel as an extra build output. 68# We must relink to generate the .bin kernel, because without headers the 69# location of everything changes. We also strip the ARM marker symbols. 70KERNEL_EXTRA+= ${KERNEL_KO}.bin 71KERNEL_EXTRA_INSTALL+= ${KERNEL_KO}.bin 72 73${KERNEL_KO}.bin: ${SYSTEM_DEP} vers.o 74 @echo "linking ${.TARGET}" 75 @${SYSTEM_LD_BASECMD} \ 76 --defsym='text_start=kernbase' \ 77 -o ${.TARGET} ${SYSTEM_OBJS} vers.o 78 ${SIZE} ${.TARGET} 79 @${OBJCOPY} \ 80 --wildcard \ 81 --strip-symbol='$$[adt]*' \ 82 --output-target=binary \ 83 ${.TARGET} 84 @chmod 755 ${.TARGET} 85 86# hack because genassym.c includes sys/bus.h which includes these. 87genassym.o: bus_if.h device_if.h 88 89%BEFORE_DEPEND 90 91%OBJS 92 93%FILES.c 94 95%FILES.s 96 97%FILES.m 98 99%CLEAN 100 101CLEAN+= ${KERNEL_KO}.bin 102 103%RULES 104 105.include "$S/conf/kern.post.mk" 106