Makefile.aarch64 revision 1.13 
1#	$NetBSD: Makefile.aarch64,v 1.13 2018/11/01 20:34:49 maxv 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 ${KASAN:U0} > 0 && ${HAVE_GCC:U0} > 0
43KASANFLAGS=	-fsanitize=kernel-address \
44		--param asan-globals=1
45.for f in subr_asan.c
46KASANFLAGS.${f}=	# empty
47.endfor
48CFLAGS+=	${KASANFLAGS.${.IMPSRC:T}:U${KASANFLAGS}}
49.endif
50
51##
52## (3) libkern and compat
53##
54OPT_MODULAR=	%MODULAR%
55
56##
57## (4) local objects, compile rules, and dependencies
58##
59MD_OBJS+=	${SYSTEM_FIRST_OBJ} locore.o
60MD_CFILES+=
61MD_SFILES+=	${SYSTEM_FIRST_SFILE} ${ARM}/aarch64/locore.S
62
63.if defined(SYSTEM_FIRST_OBJ)
64${SYSTEM_FIRST_OBJ}: ${SYSTEM_FIRST_SFILE} assym.h
65	${NORMAL_S}
66.endif
67
68locore.o: ${ARM}/aarch64/locore.S assym.h
69	${NORMAL_S}
70
71##
72## (5) link settings
73##
74KERNLDSCRIPT?=	${ARM}/conf/kern.ldscript
75LOADADDRESS?=	0xffffffc000000040
76LINKFLAGS_NORMAL=	-X
77
78# Strip AArch64 mapping symbols from the kernel image, as they interfere
79# with ddb. Do it differently if 'makeoptions DEBUG="-g"' was specified.
80.if !defined(DEBUG) || empty(DEBUG:M-g*)
81SYSTEM_LD_TAIL?=	${OBJCOPY} -w --strip-symbol='[$$][dx]'	\
82				   --strip-symbol='[$$][dx]\.*' $@ ;\
83			${SIZE} $@; chmod 755 $@
84.else
85STRIPFLAGS=-g --strip-symbol='$$x' --strip-symbol='$$d'
86.endif
87
88##
89## (6) port specific target dependencies
90##
91
92# depend on DIAGNOSTIC etc.
93cpuswitch.o fault.o machdep.o: Makefile
94
95# various assembly files that depend on assym.h
96atomic.o bcopy_page.o bcopyinout.o copystr.o cpuswitch.o cpu_in_cksum.o: assym.h
97exception.o sigcode.o: assym.h
98spl.o vectors.o: assym.h
99
100##
101## (7) misc settings
102##
103
104# define .MAIN _before_ the make() check, so that implicit target
105# would be defined
106.MAIN: all
107
108.if !make(obj) && !make(clean) && !make(cleandir)
109.BEGIN::
110	-@rm -f arm && \
111		ln -s $S/arch/arm/include arm
112.endif
113
114##
115## (8) config(8) generated machinery
116##
117%INCLUDES
118
119%OBJS
120
121%CFILES
122
123%SFILES
124
125%LOAD
126
127%RULES
128
129##
130## (9) after the config file is inserted
131##
132
133##
134## (10) port independent kernel machinery
135##
136
137.include "$S/conf/Makefile.kern.inc"
138
139##
140## (11) Appending make options.
141##
142%MAKEOPTIONSAPPEND
143