1# $NetBSD: Makefile.aarch64,v 1.23 2021/05/27 06:19:38 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 defined(PROF) && ${HAVE_GCC:U0} > 0 43# For accurate profiling, it is better to suppress the tail call. 44CFLAGS+= -fno-optimize-sibling-calls 45.endif 46 47.if ${ARMV83_PAC:U0} > 0 && ${ARMV85_BTI:U0} > 0 48CFLAGS+= -mbranch-protection=pac-ret+bti 49.else 50.if ${ARMV83_PAC:U0} > 0 51CFLAGS+= -mbranch-protection=pac-ret 52.endif 53.if ${ARMV85_BTI:U0} > 0 54CFLAGS+= -mbranch-protection=bti 55.endif 56.endif 57 58.if ${KASAN:U0} > 0 && ${HAVE_GCC:U0} > 0 59KASANFLAGS= -fsanitize=kernel-address \ 60 --param asan-globals=1 --param asan-stack=1 \ 61 --param asan-instrument-allocas=1 \ 62 -fsanitize-address-use-after-scope \ 63 -fasan-shadow-offset=0xDFFF600000000000 64.for f in subr_asan.c 65KASANFLAGS.${f}= # empty 66.endfor 67CFLAGS+= ${KASANFLAGS.${.IMPSRC:T}:U${KASANFLAGS}} 68.endif 69 70## 71## (3) libkern and compat 72## 73OPT_MODULAR= %MODULAR% 74 75## 76## (4) local objects, compile rules, and dependencies 77## 78MD_OBJS+= ${SYSTEM_FIRST_OBJ} locore.o 79MD_CFILES+= 80MD_SFILES+= ${SYSTEM_FIRST_SFILE} ${ARM}/aarch64/locore.S 81 82.if defined(SYSTEM_FIRST_OBJ) 83${SYSTEM_FIRST_OBJ}: ${SYSTEM_FIRST_SFILE} assym.h 84 ${NORMAL_S} 85.endif 86 87locore.o: ${ARM}/aarch64/locore.S assym.h 88 ${NORMAL_S} 89 90## 91## (5) link settings 92## 93KERNLDSCRIPT?= ${ARM}/conf/kern.ldscript 94LOADADDRESS?= 0xffffc00000000000 95LINKFLAGS_NORMAL= -X 96 97# Strip AArch64 mapping symbols from the kernel image, as they interfere 98# with ddb. Do it differently if 'makeoptions DEBUG="-g"' was specified. 99.if !defined(DEBUG) || empty(DEBUG:M-g*) 100SYSTEM_LD_TAIL?= ${OBJCOPY} -w --strip-symbol='[$$][dx]' \ 101 --strip-symbol='[$$][dx]\.*' $@ ;\ 102 ${SIZE} $@; chmod 755 $@ 103.else 104STRIPFLAGS=-g --strip-symbol='$$x' --strip-symbol='$$d' 105.endif 106 107## 108## (6) port specific target dependencies 109## 110 111# depend on DIAGNOSTIC etc. 112cpuswitch.o fault.o machdep.o: Makefile 113 114# various assembly files that depend on assym.h 115atomic.o bcopy_page.o bcopyinout.o copystr.o cpuswitch.o cpu_in_cksum.o: assym.h 116exception.o sigcode.o: assym.h 117spl.o vectors.o: assym.h 118 119## 120## (7) misc settings 121## 122 123# define .MAIN _before_ the make() check, so that implicit target 124# would be defined 125.MAIN: all 126 127.if !make(obj) && !make(clean) && !make(cleandir) 128.BEGIN:: 129 -@rm -f arm && \ 130 ln -s $S/arch/arm/include arm 131.endif 132 133## 134## (8) config(8) generated machinery 135## 136%INCLUDES 137 138%OBJS 139 140%CFILES 141 142%SFILES 143 144%LOAD 145 146%RULES 147 148## 149## (9) after the config file is inserted 150## 151 152## 153## (10) port independent kernel machinery 154## 155 156.include "$S/conf/Makefile.kern.inc" 157 158## 159## (11) Appending make options. 160## 161%MAKEOPTIONSAPPEND 162