Makefile.aarch64 revision 1.11 
1#	$NetBSD: Makefile.aarch64,v 1.11 2018/09/14 08:51:06 skrll 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
43##
44## (3) libkern and compat
45##
46KERN_AS=	obj
47
48##
49## (4) local objects, compile rules, and dependencies
50##
51MD_OBJS+=	${SYSTEM_FIRST_OBJ} locore.o
52MD_CFILES+=
53MD_SFILES+=	${SYSTEM_FIRST_SFILE} ${ARM}/aarch64/locore.S
54
55.if defined(SYSTEM_FIRST_OBJ)
56${SYSTEM_FIRST_OBJ}: ${SYSTEM_FIRST_SFILE} assym.h
57	${NORMAL_S}
58.endif
59
60locore.o: ${ARM}/aarch64/locore.S assym.h
61	${NORMAL_S}
62
63##
64## (5) link settings
65##
66KERNLDSCRIPT?=	${ARM}/conf/kern.ldscript
67LOADADDRESS?=	0xffffffc000000040
68LINKFLAGS_NORMAL=	-X
69
70# Strip AArch64 mapping symbols from the kernel image, as they interfere
71# with ddb. Do it differently if 'makeoptions DEBUG="-g"' was specified.
72.if !defined(DEBUG) || empty(DEBUG:M-g*)
73SYSTEM_LD_TAIL?=	${OBJCOPY} -w --strip-symbol='[$$][dx]'	\
74				   --strip-symbol='[$$][dx]\.*' $@ ;\
75			${SIZE} $@; chmod 755 $@
76.else
77STRIPFLAGS=-g --strip-symbol='$$x' --strip-symbol='$$d'
78.endif
79
80##
81## (6) port specific target dependencies
82##
83
84# depend on DIAGNOSTIC etc.
85cpuswitch.o fault.o machdep.o: Makefile
86
87# various assembly files that depend on assym.h
88atomic.o bcopy_page.o bcopyinout.o copystr.o cpuswitch.o cpu_in_cksum.o: assym.h
89exception.o sigcode.o: assym.h
90spl.o vectors.o: assym.h
91
92##
93## (7) misc settings
94##
95
96# define .MAIN _before_ the make() check, so that implicit target
97# would be defined
98.MAIN: all
99
100.if !make(obj) && !make(clean) && !make(cleandir)
101.BEGIN::
102	-@rm -f arm && \
103		ln -s $S/arch/arm/include arm
104.endif
105
106##
107## (8) config(8) generated machinery
108##
109%INCLUDES
110
111%OBJS
112
113%CFILES
114
115%SFILES
116
117%LOAD
118
119%RULES
120
121##
122## (9) after the config file is inserted
123##
124
125##
126## (10) port independent kernel machinery
127##
128
129.include "$S/conf/Makefile.kern.inc"
130
131##
132## (11) Appending make options.
133##
134%MAKEOPTIONSAPPEND
135