Makefile.mips revision 1.65 
1#	$NetBSD: Makefile.mips,v 1.65 2016/03/29 18:40:32 macallan 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/mips/conf/Makefile.mips
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## (0) toolchain settings for things that aren't part of the standard
26## toolchain
27##
28ELF2ECOFF?=	elf2ecoff
29
30##
31## (1) port identification
32##
33.ifndef S
34S=		../../../..
35.endif
36THISMIPS=	$S/arch/${MACHINE}
37MIPS=		$S/arch/mips
38GENASSYM_CONF=	${MIPS}/mips/genassym.cf
39.-include "${THISMIPS}/conf/Makefile.${MACHINE}.inc"
40
41##
42## (2) compile settings
43##
44## Note: -ffixed-?? must be kept in sync with cpu.h.
45##
46CPPFLAGS+=	-D${MACHINE}
47DEFGP?=		-G 0
48GP?=		${DEFGP}
49
50.if ${ACTIVE_CC} == "gcc" && ${HAVE_GCC} == "48"
51# XXX
52# gcc does not pass floating point options to the assembler
53# by default, because it is afraid that the stricter tests
54# will break userland code. The new binutils is pickier about
55# this. Gcc 5.x fixes the issue so for now, set explicitly
56# the assembler soft-float flags when we build the kernel.
57# see: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64569
58
59CFLAGS+=	-Wa,-msoft-float
60COPTS.mips_fpu.c+=	-Wa,-mhard-float
61.else
62COPTS.mips_fpu.c+=	-mhard-float -Wa,-mhard-float
63AFLAGS.fp.S+=		-Wa,-mhard-float
64.endif
65
66CFLAGS+=	${GP} -mno-abicalls -msoft-float -ffixed-24
67.if defined(LP64) && ${LP64} == "yes"
68.if ${MACHINE_ARCH} == "mips64eb" || ${MACHINE_ARCH} == "mips64el"
69CFLAGS+=	-msym32 -mabi=64
70AFLAGS+=	-msym32 -mabi=64
71.endif
72.if ${MACHINE_ARCH} == "mips64eb"
73LDFLAGS+=	-m elf64btsmip
74LINKFORMAT+=	-m elf64btsmip
75SYSTEM_LD_TAIL_EXTRA+= \
76		;echo ${OBJCOPY} -O elf32-ntradbigmips $@ $@.elf32; \
77		${OBJCOPY} -O elf32-ntradbigmips $@ $@.elf32
78.endif
79.if ${MACHINE_ARCH} == "mips64el"
80LDFLAGS+=	-m elf64ltsmip
81LINKFORMAT+=	-m elf64ltsmip
82SYSTEM_LD_TAIL_EXTRA+= \
83		;echo ${OBJCOPY} -O elf32-ntradlittlemips $@ $@.elf32; \
84		${OBJCOPY} -O elf32-ntradlittlemips $@ $@.elf32
85.endif
86.endif # LP64=yes
87AFLAGS+=	-mno-abicalls -x assembler-with-cpp ${AOPTS}
88
89##
90## (3) libkern and compat
91##
92OPT_MODULAR=	%MODULAR%
93.if !empty(OPT_MODULAR)
94KERN_AS=	obj
95.else
96KERN_AS=	library
97.endif
98
99##
100## (4) local objects, compile rules, and dependencies
101##
102MD_OBJS=	locore.o locore_machdep.o
103MD_CFILES=
104MD_SFILES=	${MIPS}/mips/locore.S ${THISMIPS}/${MACHINE}/locore_machdep.S	
105
106locore.o: ${MIPS}/mips/locore.S assym.h
107	${NORMAL_S}
108
109locore_machdep.o: ${THISMIPS}/${MACHINE}/locore_machdep.S assym.h
110	${NORMAL_S}
111
112##
113## (5) link settings
114##
115.if ${MACHINE_ARCH} == "mips64eb" || ${MACHINE_ARCH} == "mips64el"
116TEXTADDR?=              ${DEFTEXTADDR:C/0x8/0xFFFFFFFF8/}
117.else   
118TEXTADDR?=		${DEFTEXTADDR}
119.endif
120KERNLDSCRIPT?=		${MIPS}/conf/kern.ldscript
121# some mips ports specify a "magic" format
122EXTRA_LINKFLAGS=	${GP} ${LDOPTS}
123LINKFLAGS_NORMAL=	-X
124STRIPFLAGS=		-g -X
125
126##
127## (6) port specific target dependencies
128##
129
130# depend on CPU configuration
131machdep.o mainbus.o trap.o: Makefile
132
133# depend on System V IPC/shmem options
134mips_machdep.o pmap.o: Makefile
135
136# various assembly files that depend on assym.h
137copy.o fp.o locore.o locore_mips1.o locore_mips3.o: assym.h
138lock_stubs.o mips32_subr.o mips3_subr.o: assym.h
139mips64_subr.o mipsX_subr.o sigcode.o: assym.h
140
141
142##
143## (7) misc settings
144##
145
146##
147## (8) config(8) generated machinery
148##
149%INCLUDES
150
151%OBJS
152
153%CFILES
154
155%SFILES
156
157%LOAD
158
159%RULES
160
161##
162## (9) port independent kernel machinery
163##
164.include "$S/conf/Makefile.kern.inc"
165
166##
167## (10) Appending make options.
168##
169%MAKEOPTIONSAPPEND
170