Makefile.riscv revision 1.5 
1#	$NetBSD: Makefile.riscv,v 1.5 2019/06/16 07:42:52 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/<machine>/conf/``machineid''
9# after which you should do
10#	config machineid
11# Machine generic makefile changes should be made in
12#	/sys/arch/riscv/conf/Makefile.riscv
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##
27.ifndef S
28S=		../../../..
29.endif
30THISRISCV=	$S/arch/${MACHINE}
31RISCV=		$S/arch/riscv
32GENASSYM_CONF=	${RISCV}/riscv/genassym.cf
33.-include "${THISRISCV}/conf/Makefile.${MACHINE}.inc"
34
35##
36## (2) compile settings
37##
38## Note: -ffixed-?? must be kept in sync with cpu.h.
39##
40CPPFLAGS+=	-D${MACHINE}
41CFLAGS+=	-mcmodel=medany
42.if !defined(LP64) || ${LP64} == "no"
43CFLAGS+=	-m32
44AFLAGS+=	-m32
45LDFLAGS+=	-m elf32lriscv
46LINKFORMAT+=	-m elf32lriscv
47SYSTEM_LD_TAIL_EXTRA+= \
48		;echo ${OBJCOPY} -O elf32-littleriscv $@ $@.elf32; \
49		${OBJCOPY} -O elf32-littleriscv $@ $@.elf32
50.endif # LP64=no
51AFLAGS+=	-x assembler-with-cpp ${AOPTS}
52
53##
54## (3) libkern and compat
55##
56OPT_MODULAR=	%MODULAR%
57
58##
59## (4) local objects, compile rules, and dependencies
60##
61MD_OBJS=	locore.o
62MD_CFILES=
63MD_SFILES=	${RISCV}/riscv/locore.S
64
65locore.o: ${RISCV}/riscv/locore.S assym.h
66	${NORMAL_S}
67
68##
69## (5) link settings
70##
71.if ${MACHINE_ARCH} == "riscv64" && ${LP64:Uyes} == "yes"
72TEXTADDR?=		0xFFFFFFC000000000
73.else
74TEXTADDR?=		0xC0001000
75.endif
76KERNLDSCRIPT?=		${RISCV}/conf/kern.ldscript
77LINKFORMAT+=		-T ${KERNLDSCRIPT}
78EXTRA_LINKFLAGS=	${LDOPTS} --relax
79LINKFLAGS_NORMAL=	-X
80STRIPFLAGS=		-g -X
81
82##
83## (6) port specific target dependencies
84##
85
86# depend on CPU configuration
87machdep.o mainbus.o trap.o: Makefile
88
89# depend on System V IPC/shmem options
90riscv_machdep.o pmap.o: Makefile
91
92# various assembly files that depend on assym.h
93locore.o: assym.h
94
95##
96## (7) misc settings
97##
98RAMDISKDIR!=    cd ${NETBSDSRCDIR}/distrib/riscv/ramdisk && ${PRINTOBJDIR}
99
100.if defined(NEED_MDSETIMAGE) && ${NEED_MDSETIMAGE} != "no" \
101    && defined(RAMDISKDIR) && exists(${RAMDISKDIR}/ramdisk.fs)
102SYSTEM_DEP+=    ${RAMDISKDIR}/ramdisk.fs 
103SYSTEM_LD_TAIL_EXTRA+=; \
104	echo ${TOOL_MDSETIMAGE} -s $@ ${RAMDISKDIR}/ramdisk.fs; \
105	${TOOL_MDSETIMAGE} -s $@ ${RAMDISKDIR}/ramdisk.fs
106.if !empty(DEBUG:M-g*)
107SYSTEM_LD_TAIL_EXTRA+=; \
108	echo ${TOOL_MDSETIMAGE} -s $@.gdb ${RAMDISKDIR}/ramdisk.fs; \
109	${TOOL_MDSETIMAGE} -s $@.gdb ${RAMDISKDIR}/ramdisk.fs
110.endif
111.endif
112
113##
114## (8) config(8) generated machinery
115##
116%INCLUDES
117
118%OBJS
119
120%CFILES
121
122%SFILES
123
124%LOAD
125
126%RULES
127
128##
129## (9) port independent kernel machinery
130##
131.include "$S/conf/Makefile.kern.inc"
132
133##
134## (10) Appending make options.
135##
136%MAKEOPTIONSAPPEND
137