Makefile.aarch64 revision 1.14 
1#	$NetBSD: Makefile.aarch64,v 1.14 2018/11/08 08:28:07 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 && ${HAVE_GCC:U0} > 0
43KASANFLAGS=	-fsanitize=kernel-address \
44		--param asan-globals=1 --param asan-stack=1 \
45		-fasan-shadow-offset=0xDFFF208000000000
46.for f in subr_asan.c
47KASANFLAGS.${f}=	# empty
48.endfor
49CFLAGS+=	${KASANFLAGS.${.IMPSRC:T}:U${KASANFLAGS}}
50.endif
51
52##
53## (3) libkern and compat
54##
55OPT_MODULAR=	%MODULAR%
56
57##
58## (4) local objects, compile rules, and dependencies
59##
60MD_OBJS+=	${SYSTEM_FIRST_OBJ} locore.o
61MD_CFILES+=
62MD_SFILES+=	${SYSTEM_FIRST_SFILE} ${ARM}/aarch64/locore.S
63
64.if defined(SYSTEM_FIRST_OBJ)
65${SYSTEM_FIRST_OBJ}: ${SYSTEM_FIRST_SFILE} assym.h
66	${NORMAL_S}
67.endif
68
69locore.o: ${ARM}/aarch64/locore.S assym.h
70	${NORMAL_S}
71
72##
73## (5) link settings
74##
75KERNLDSCRIPT?=	${ARM}/conf/kern.ldscript
76LOADADDRESS?=	0xffffffc000000040
77LINKFLAGS_NORMAL=	-X
78
79# Strip AArch64 mapping symbols from the kernel image, as they interfere
80# with ddb. Do it differently if 'makeoptions DEBUG="-g"' was specified.
81.if !defined(DEBUG) || empty(DEBUG:M-g*)
82SYSTEM_LD_TAIL?=	${OBJCOPY} -w --strip-symbol='[$$][dx]'	\
83				   --strip-symbol='[$$][dx]\.*' $@ ;\
84			${SIZE} $@; chmod 755 $@
85.else
86STRIPFLAGS=-g --strip-symbol='$$x' --strip-symbol='$$d'
87.endif
88
89##
90## (6) port specific target dependencies
91##
92
93# depend on DIAGNOSTIC etc.
94cpuswitch.o fault.o machdep.o: Makefile
95
96# various assembly files that depend on assym.h
97atomic.o bcopy_page.o bcopyinout.o copystr.o cpuswitch.o cpu_in_cksum.o: assym.h
98exception.o sigcode.o: assym.h
99spl.o vectors.o: assym.h
100
101##
102## (7) misc settings
103##
104
105# define .MAIN _before_ the make() check, so that implicit target
106# would be defined
107.MAIN: all
108
109.if !make(obj) && !make(clean) && !make(cleandir)
110.BEGIN::
111	-@rm -f arm && \
112		ln -s $S/arch/arm/include arm
113.endif
114
115##
116## (8) config(8) generated machinery
117##
118%INCLUDES
119
120%OBJS
121
122%CFILES
123
124%SFILES
125
126%LOAD
127
128%RULES
129
130##
131## (9) after the config file is inserted
132##
133
134##
135## (10) port independent kernel machinery
136##
137
138.include "$S/conf/Makefile.kern.inc"
139
140##
141## (11) Appending make options.
142##
143%MAKEOPTIONSAPPEND
144