1# $NetBSD: Makefile.aarch64,v 1.21 2020/05/11 03:00:57 ryo Exp $ 2 3# Makefile for NetBSD 4# 5# This makefile is constructed from a machine description: 6# config machineid 7# Most changes should be made in the machine description 8# /sys/arch/<arch>/conf/``machineid'' 9# after which you should do 10# config machineid 11# Machine generic makefile changes should be made in 12# /sys/arch/arm/conf/Makefile.arm 13# after which config should be rerun for all machines of that type. 14# 15# To specify debugging, add the config line: makeoptions DEBUG="-g" 16# A better way is to specify -g only for a few files. 17# 18# makeoptions DEBUGLIST="uvm* trap if_*" 19 20USETOOLS?= no 21NEED_OWN_INSTALL_TARGET?=no 22.include <bsd.own.mk> 23 24## 25## (1) port identification 26## 27THISARM= $S/arch/${MACHINE} 28ARM= $S/arch/aarch64 29GENASSYM_CONF= ${ARM}/aarch64/genassym.cf 30.-include "$S/arch/${MACHINE}/conf/Makefile.${MACHINE}.inc" 31 32## 33## (2) compile settings 34## 35# CPPFLAGS set by platform-specific Makefile fragment. 36CFLAGS+= -march=armv8-a+nofp+nosimd 37#CFLAGS+= -fomit-frame-pointer 38CFLAGS+= -fno-omit-frame-pointer 39CFLAGS+= -mno-omit-leaf-frame-pointer 40#CFLAGS+= -mno-unaligned-access 41 42.if ${HAVE_LLVM:Uno} == "yes" 43.if ${ARMV83_PAC:U0} > 0 && ${ARMV85_BTI:U0} > 0 44CFLAGS+= -mbranch-protection=pac-ret+bti 45.else 46.if ${ARMV83_PAC:U0} > 0 47CFLAGS+= -mbranch-protection=pac-ret 48.endif 49.if ${ARMV85_BTI:U0} > 0 50CFLAGS+= -mbranch-protection=bti 51.endif 52.endif 53.endif 54 55.if ${HAVE_GCC:U0} > 0 56.if ${ARMV83_PAC:U0} > 0 57CFLAGS+= -msign-return-address=all 58.endif 59.if ${ARMV85_BTI:U0} > 0 60# XXX: notyet for gcc 61.endif 62.endif 63 64.if ${KASAN:U0} > 0 && ${HAVE_GCC:U0} > 0 65KASANFLAGS= -fsanitize=kernel-address \ 66 --param asan-globals=1 --param asan-stack=1 \ 67 --param asan-instrument-allocas=1 \ 68 -fsanitize-address-use-after-scope \ 69 -fasan-shadow-offset=0xDFFF600000000000 70.for f in subr_asan.c 71KASANFLAGS.${f}= # empty 72.endfor 73CFLAGS+= ${KASANFLAGS.${.IMPSRC:T}:U${KASANFLAGS}} 74.endif 75 76## 77## (3) libkern and compat 78## 79OPT_MODULAR= %MODULAR% 80 81## 82## (4) local objects, compile rules, and dependencies 83## 84MD_OBJS+= ${SYSTEM_FIRST_OBJ} locore.o 85MD_CFILES+= 86MD_SFILES+= ${SYSTEM_FIRST_SFILE} ${ARM}/aarch64/locore.S 87 88.if defined(SYSTEM_FIRST_OBJ) 89${SYSTEM_FIRST_OBJ}: ${SYSTEM_FIRST_SFILE} assym.h 90 ${NORMAL_S} 91.endif 92 93locore.o: ${ARM}/aarch64/locore.S assym.h 94 ${NORMAL_S} 95 96## 97## (5) link settings 98## 99KERNLDSCRIPT?= ${ARM}/conf/kern.ldscript 100LOADADDRESS?= 0xffffc00000000000 101LINKFLAGS_NORMAL= -X 102 103# Strip AArch64 mapping symbols from the kernel image, as they interfere 104# with ddb. Do it differently if 'makeoptions DEBUG="-g"' was specified. 105.if !defined(DEBUG) || empty(DEBUG:M-g*) 106SYSTEM_LD_TAIL?= ${OBJCOPY} -w --strip-symbol='[$$][dx]' \ 107 --strip-symbol='[$$][dx]\.*' $@ ;\ 108 ${SIZE} $@; chmod 755 $@ 109.else 110STRIPFLAGS=-g --strip-symbol='$$x' --strip-symbol='$$d' 111.endif 112 113## 114## (6) port specific target dependencies 115## 116 117# depend on DIAGNOSTIC etc. 118cpuswitch.o fault.o machdep.o: Makefile 119 120# various assembly files that depend on assym.h 121atomic.o bcopy_page.o bcopyinout.o copystr.o cpuswitch.o cpu_in_cksum.o: assym.h 122exception.o sigcode.o: assym.h 123spl.o vectors.o: assym.h 124 125## 126## (7) misc settings 127## 128 129# define .MAIN _before_ the make() check, so that implicit target 130# would be defined 131.MAIN: all 132 133.if !make(obj) && !make(clean) && !make(cleandir) 134.BEGIN:: 135 -@rm -f arm && \ 136 ln -s $S/arch/arm/include arm 137.endif 138 139## 140## (8) config(8) generated machinery 141## 142%INCLUDES 143 144%OBJS 145 146%CFILES 147 148%SFILES 149 150%LOAD 151 152%RULES 153 154## 155## (9) after the config file is inserted 156## 157 158## 159## (10) port independent kernel machinery 160## 161 162.include "$S/conf/Makefile.kern.inc" 163 164## 165## (11) Appending make options. 166## 167%MAKEOPTIONSAPPEND 168