Makefile.rump revision 1.61 
1#	$NetBSD: Makefile.rump,v 1.61 2011/05/10 00:33:58 matt 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
18CFLAGS+=	-ffreestanding -fno-strict-aliasing
19.if defined(HAVE_GCC) && ${HAVE_GCC} >= 3
20CFLAGS+=	-Wsign-compare
21CFLAGS+=	-Wno-pointer-sign -Wno-attributes
22CFLAGS+=	-std=gnu99
23.endif
24CWARNFLAGS+=	-Wno-format-zero-length -Wno-pointer-sign
25CPPFLAGS+=	-D_KERNEL -DMULTIPROCESSOR -D_MODULE -DMODULAR
26CPPFLAGS+=	-DMAXUSERS=32
27CPPFLAGS+=	-DDIAGNOSTIC
28CPPFLAGS+=	-DCOMPAT_50=1
29CPPFLAGS+=	-DDEBUGPRINT
30CPPFLAGS+=	-I${.CURDIR} -I.
31CPPFLAGS+=	-I${RUMPTOP}/../../common/include -isystem ${RUMPTOP}/../arch
32CPPFLAGS+=	-I${RUMPTOP}/include
33CPPFLAGS+=	-I${RUMPTOP}/librump/rumpkern/opt
34CPPFLAGS+=	-nostdinc -isystem ${RUMPTOP}/..
35LDFLAGS+=	-T ${RUMPTOP}/ldscript.rump
36#CPPFLAGS+=	-DDEBUG
37
38.ifdef RUMP_LOCKDEBUG
39CPPFLAGS+=	-DLOCKDEBUG
40.endif
41
42# kernel libs should not get linked against libc
43# XXX: actually, we would like to enable this but cannot, since it
44# also leaves out libgcc, it causes problems on some platforms.
45# revisit some day.
46#LDFLAGS+=	-nodefaultlibs
47
48# make sure __NetBSD__ gets defined (for builds on non-NetBSD)
49CPPFLAGS+=	-D__NetBSD__
50
51RUMPKERNEL=	This is NetBSD and I am the rump.  Good evening.
52
53# workaround: evbppc is not a well-defined arch
54.if (${MACHINE} == "evbppc")
55CPPFLAGS+=	-DPPC_OEA
56.endif
57
58# If this file changes, we need a full rebuild
59DPSRCS+=	${RUMPTOP}/Makefile.rump
60
61#
62# Rename library symbols before use.  If a symbol does not already belong
63# to a rump namespace ("rump" or "RUMP"), prefix it with "rumpns".  This
64# avoids accidentally linking any kernel symbol against host platform
65# libraries.  The only non-renamed symbols are linkset delimiters and
66# the GOT, which are more a property of the compiler than the kernel.
67#
68# Some toolchains generate unresolved symbols which are supposed to be
69# satisfied by the toolchain itself when the program is linked.
70# Unfortunately, we do not know which of the symbols are generated by
71# the toolchain.  Worse, they vary from platform to platform and
72# toolchain to toolchain.  The good news, however, is that this will
73# be detected by a compile-time failure, so we can fairly easily manage
74# a quirktable here.
75#
76# We also allow calling ourselves externally with e.g.:
77# make -f /sys/rump/Makefile.rump RUMP_SYMREN=ffs.kobj
78#
79.if ${MACHINE_CPU} == "mips"
80_SYMQUIRK='|_gp_disp'
81.elif ${MACHINE_CPU} == "hppa"
82_SYMQUIRK='|\$$\$$'
83.elif ${MACHINE_ARCH} == "powerpc64"
84_SYMQUIRK="|PF_funcs"
85.endif
86
87#
88# Prefix quirks.  At least one toolchain generates global
89# symbols with prefixes which really need to remain as prefixes
90# (i.e. the '.' on the front of some ppc64 globals).  The
91# way to know if you have the problem is if you get later
92# complaints about symbols like 'rumpns_XrumpBLAH' or 'XrumpBLAH';
93# the 'X' part was added by the toolchain and will need to
94# be mentioned here.
95# 
96.if ${MACHINE_ARCH} == "powerpc64"
97_PQ="\.?"
98.else
99_PQ=
100.endif
101
102rump_symren: __archivebuild
103.if !defined(RUMP_SYMREN)
104	@echo "Must supply RUMP_SYMREN for target rump_symren"
105	@false
106.endif
107
108# if we are called from lib build (RUMP_SYMREN is not specified),
109# build the arrrrchive.  otherwise just rename symbols.
110__archivebuild: .USE
111.if defined(RUMP_SYMREN) && defined(RUMPTOP)
112	@echo "ERROR: RUMP_SYMREN can only be used standalone"
113	@false
114.endif
115.if defined(RUMP_SYMREN)
116	${_MKMSG} " symbol rename " ${RUMP_SYMREN}
117.else
118	${_MKTARGET_BUILD}
119	rm -f ${.TARGET}
120	${AR} ${_ARFL} ${.TARGET} `NM=${NM} ${LORDER} ${.ALLSRC:M*o} | ${TSORT}`
121.endif
122	${NM} -go ${RUMP_SYMREN:U${.TARGET}} | ${TOOL_AWK} '	\
123	    $$NF!~/^'${_PQ}'(rump|RUMP|__|_GLOBAL_OFFSET_TABLE'${_SYMQUIRK}')/ \
124	      {s = $$NF; sub(/^'${_PQ}'/, "&rumpns_", s); print $$NF, s}' \
125	    | sort | uniq  > renametab.${.TARGET}
126	${OBJCOPY} --preserve-dates --redefine-syms \
127	    renametab.${.TARGET} ${RUMP_SYMREN:U${.TARGET}}
128	rm -f renametab.${.TARGET}
129.if !defined(RUMP_SYMREN)
130	${AR} ${_ARRANFL} ${.TARGET}
131.endif
132
133_BSD_IOCONF_MK_USER_=1
134.include <bsd.ioconf.mk>
135
136.-include "${NETBSDSRCDIR}/sys/arch/${MACHINE_CPU}/include/Makefile.inc"
137.-include "${NETBSDSRCDIR}/sys/arch/${MACHINE}/include/Makefile.inc"
138