Makefile.rump revision 1.66 
1#	$NetBSD: Makefile.rump,v 1.66 2012/11/21 17:51:42 pooka Exp $
2#
3
4WARNS?=		3	# XXX: src/sys won't compile with -Wsign-compare yet
5NOLINT=		# kernel code
6
7.include <bsd.own.mk>
8
9# If RUMPKMOD is _not_ set (only on capable archs, from bsd.own.mk),
10# use rump ABI instead of the NetBSD kernel ABI.
11.ifndef RUMPKMOD
12CPPFLAGS:=	-I${RUMPTOP}/include ${CPPFLAGS}
13CPPFLAGS+=	-D_RUMPKERNEL
14.else
15CPPFLAGS+=	-D_RUMP_NATIVE_ABI
16.endif
17
18CPPFLAGS+=	-DMAXUSERS=32
19CPPFLAGS+=	-DCOMPAT_50=1
20
21CPPFLAGS+=	-nostdinc
22CFLAGS+=	-ffreestanding -fno-strict-aliasing
23
24CWARNFLAGS+=	-Wno-format-zero-length -Wno-pointer-sign
25CPPFLAGS+=	-D_KERNEL -DMULTIPROCESSOR -D_MODULE -DMODULAR
26CPPFLAGS+=	-DDEBUGPRINT
27CPPFLAGS+=	-I${.CURDIR} -I.
28CPPFLAGS+=	-I${RUMPTOP}/../../common/include
29CPPFLAGS+=	-I${RUMPTOP}/include
30CPPFLAGS+=	-I${RUMPTOP}/librump/rumpkern/opt
31
32.ifdef NEED_ISYSTEM
33CPPFLAGS+=	-isystem ${RUMPTOP}/../arch
34CPPFLAGS+=	-isystem ${RUMPTOP}/..
35.else
36CPPFLAGS+=	-I${RUMPTOP}/../arch
37CPPFLAGS+=	-I${RUMPTOP}/..
38.endif
39
40LDFLAGS+=	-T ${RUMPTOP}/ldscript.rump
41
42RUMP_DIAGNOSTIC?=yes
43.if ${RUMP_DIAGNOSTIC} == "yes"
44CPPFLAGS+=	-DDIAGNOSTIC
45.endif
46
47.ifdef RUMP_DEBUG
48CPPFLAGS+=	-DDEBUG
49.endif
50
51.ifdef RUMP_LOCKDEBUG
52CPPFLAGS+=	-DLOCKDEBUG
53.endif
54
55# kernel libs should not get linked against libc
56# XXX: actually, we would like to enable this but cannot, since it
57# also leaves out libgcc, it causes problems on some platforms.
58# revisit some day.
59#LDFLAGS+=	-nodefaultlibs
60
61# make sure __NetBSD__ gets defined (for builds on non-NetBSD)
62# aaand make sure cc doesn't source files any wild ideas
63CPPFLAGS+=	-D__NetBSD__
64CPPFLAGS+=	-Ulinux -U__linux -U__linux__ -U__gnu_linux__
65
66RUMPKERNEL=	This is NetBSD and I am the rump.  Good evening.
67
68# workaround: evbppc is not a well-defined arch
69.if (${MACHINE} == "evbppc")
70CPPFLAGS+=	-DPPC_OEA
71.endif
72
73# If this file changes, we need a full rebuild
74DPSRCS+=	${RUMPTOP}/Makefile.rump
75
76#
77# Rename library symbols before use.  If a symbol does not already belong
78# to a rump namespace ("rump" or "RUMP"), prefix it with "rumpns".  This
79# avoids accidentally linking any kernel symbol against host platform
80# libraries.  The only non-renamed symbols are linkset delimiters and
81# the GOT, which are more a property of the compiler than the kernel.
82#
83# Some toolchains generate unresolved symbols which are supposed to be
84# satisfied by the toolchain itself when the program is linked.
85# Unfortunately, we do not know which of the symbols are generated by
86# the toolchain.  Worse, they vary from platform to platform and
87# toolchain to toolchain.  The good news, however, is that this will
88# be detected by a compile-time failure, so we can fairly easily manage
89# a quirktable here.
90#
91# We also allow calling ourselves externally with e.g.:
92# make -f /sys/rump/Makefile.rump RUMP_SYMREN=ffs.kobj
93#
94.if ${MACHINE_CPU} == "mips"
95_SYMQUIRK='|_gp_disp'
96.elif ${MACHINE_CPU} == "hppa"
97_SYMQUIRK='|\$$\$$'
98.elif ${MACHINE_ARCH} == "powerpc64"
99_SYMQUIRK="|PF_funcs"
100.endif
101
102#
103# Prefix quirks.  At least one toolchain generates global
104# symbols with prefixes which really need to remain as prefixes
105# (i.e. the '.' on the front of some ppc64 globals).  The
106# way to know if you have the problem is if you get later
107# complaints about symbols like 'rumpns_XrumpBLAH' or 'XrumpBLAH';
108# the 'X' part was added by the toolchain and will need to
109# be mentioned here.
110# 
111.if ${MACHINE_ARCH} == "powerpc64"
112_PQ="\.?"
113.else
114_PQ=
115.endif
116
117rump_symren: __archivebuild
118.if !defined(RUMP_SYMREN)
119	@echo "Must supply RUMP_SYMREN for target rump_symren"
120	@false
121.endif
122
123# if we are called from lib build (RUMP_SYMREN is not specified),
124# build the arrrrchive.  otherwise just rename symbols.
125__archivebuild: .USE
126.if defined(RUMP_SYMREN) && defined(RUMPTOP)
127	@echo "ERROR: RUMP_SYMREN can only be used standalone"
128	@false
129.endif
130.if defined(RUMP_SYMREN)
131	${_MKMSG} " symbol rename " ${RUMP_SYMREN}
132.else
133	${_MKTARGET_BUILD}
134	rm -f ${.TARGET}
135	${AR} ${_ARFL} ${.TARGET} `NM=${NM} ${LORDER} ${.ALLSRC:M*o} | ${TSORT}`
136.endif
137	${NM} -go ${RUMP_SYMREN:U${.TARGET}} | ${TOOL_AWK} '	\
138	    $$NF!~/^'${_PQ}'(rump|RUMP|__|_GLOBAL_OFFSET_TABLE'${_SYMQUIRK}')/ \
139	      {s = $$NF; sub(/^'${_PQ}'/, "&rumpns_", s); print $$NF, s}' \
140	    | sort | uniq  > renametab.${.TARGET}
141	${OBJCOPY} --preserve-dates --redefine-syms \
142	    renametab.${.TARGET} ${RUMP_SYMREN:U${.TARGET}}
143	rm -f renametab.${.TARGET}
144.if !defined(RUMP_SYMREN)
145	${AR} ${_ARRANFL} ${.TARGET}
146.endif
147
148_BSD_IOCONF_MK_USER_=1
149.include <bsd.ioconf.mk>
150
151.-include "${NETBSDSRCDIR}/sys/arch/${MACHINE_CPU}/include/Makefile.inc"
152.-include "${NETBSDSRCDIR}/sys/arch/${MACHINE}/include/Makefile.inc"
153