1# $NetBSD: Makefile.aarch64,v 1.25 2023/07/28 02:41:30 rin 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, but don't strip them in netbsd.gdb. See Makefile.kern.inc. 99ARCH_STRIP_SYMBOLS= --strip-symbol='[$$][dx]' \ 100 --strip-symbol='[$$][dx]\.*' 101 102## 103## (6) port specific target dependencies 104## 105 106# depend on DIAGNOSTIC etc. 107cpuswitch.o fault.o machdep.o: Makefile 108 109# various assembly files that depend on assym.h 110atomic.o bcopy_page.o bcopyinout.o copystr.o cpuswitch.o cpu_in_cksum.o: assym.h 111exception.o sigcode.o: assym.h 112spl.o vectors.o: assym.h 113 114## 115## (7) misc settings 116## 117 118# define .MAIN _before_ the make() check, so that implicit target 119# would be defined 120.MAIN: all 121 122.if !make(obj) && !make(clean) && !make(cleandir) 123.BEGIN:: 124 -@rm -f arm && \ 125 ln -s $S/arch/arm/include arm 126.endif 127 128## 129## (8) config(8) generated machinery 130## 131%INCLUDES 132 133%OBJS 134 135%CFILES 136 137%SFILES 138 139%LOAD 140 141%RULES 142 143## 144## (9) after the config file is inserted 145## 146 147## 148## (10) port independent kernel machinery 149## 150 151.include "$S/conf/Makefile.kern.inc" 152 153## 154## (11) Appending make options. 155## 156%MAKEOPTIONSAPPEND 157