Makefile.rump revision 1.60 
1#	$NetBSD: Makefile.rump,v 1.60 2011/02/01 01:15:51 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 ${CPPFLAGS}
13CPPFLAGS+=	-D_RUMPKERNEL
14.else
15CPPFLAGS+=	-D_RUMP_NATIVE_ABI
16.endif
17
18CFLAGS+=	-ffreestanding -fno-strict-aliasing
19CWARNFLAGS+=	-Wno-format-zero-length -Wno-pointer-sign
20CPPFLAGS+=	-D_KERNEL -DMULTIPROCESSOR -D_MODULE -DMODULAR
21CPPFLAGS+=	-DMAXUSERS=32
22CPPFLAGS+=	-DDIAGNOSTIC
23CPPFLAGS+=	-DCOMPAT_50=1
24CPPFLAGS+=	-DDEBUGPRINT
25CPPFLAGS+=	-I${.CURDIR} -I.
26CPPFLAGS+=	-I${RUMPTOP}/../../common/include -isystem ${RUMPTOP}/../arch
27CPPFLAGS+=	-I${RUMPTOP}/include
28CPPFLAGS+=	-I${RUMPTOP}/librump/rumpkern/opt
29CPPFLAGS+=	-nostdinc -isystem ${RUMPTOP}/..
30LDFLAGS+=	-T ${RUMPTOP}/ldscript.rump
31#CPPFLAGS+=	-DDEBUG
32
33.ifdef RUMP_LOCKDEBUG
34CPPFLAGS+=	-DLOCKDEBUG
35.endif
36
37# kernel libs should not get linked against libc
38# XXX: actually, we would like to enable this but cannot, since it
39# also leaves out libgcc, it causes problems on some platforms.
40# revisit some day.
41#LDFLAGS+=	-nodefaultlibs
42
43# make sure __NetBSD__ gets defined (for builds on non-NetBSD)
44CPPFLAGS+=	-D__NetBSD__
45
46RUMPKERNEL=	This is NetBSD and I am the rump.  Good evening.
47
48# workaround: evbppc is not a well-defined arch
49.if (${MACHINE} == "evbppc")
50CPPFLAGS+=	-DPPC_OEA
51.endif
52
53# If this file changes, we need a full rebuild
54DPSRCS+=	${RUMPTOP}/Makefile.rump
55
56#
57# Rename library symbols before use.  If a symbol does not already belong
58# to a rump namespace ("rump" or "RUMP"), prefix it with "rumpns".  This
59# avoids accidentally linking any kernel symbol against host platform
60# libraries.  The only non-renamed symbols are linkset delimiters and
61# the GOT, which are more a property of the compiler than the kernel.
62#
63# Some toolchains generate unresolved symbols which are supposed to be
64# satisfied by the toolchain itself when the program is linked.
65# Unfortunately, we do not know which of the symbols are generated by
66# the toolchain.  Worse, they vary from platform to platform and
67# toolchain to toolchain.  The good news, however, is that this will
68# be detected by a compile-time failure, so we can fairly easily manage
69# a quirktable here.
70#
71# We also allow calling ourselves externally with e.g.:
72# make -f /sys/rump/Makefile.rump RUMP_SYMREN=ffs.kobj
73#
74.if ${MACHINE_CPU} == "mips"
75_SYMQUIRK='|_gp_disp'
76.elif ${MACHINE_CPU} == "hppa"
77_SYMQUIRK='|\$$\$$'
78.elif ${MACHINE_ARCH} == "powerpc64"
79_SYMQUIRK="|PF_funcs"
80.endif
81
82#
83# Prefix quirks.  At least one toolchain generates global
84# symbols with prefixes which really need to remain as prefixes
85# (i.e. the '.' on the front of some ppc64 globals).  The
86# way to know if you have the problem is if you get later
87# complaints about symbols like 'rumpns_XrumpBLAH' or 'XrumpBLAH';
88# the 'X' part was added by the toolchain and will need to
89# be mentioned here.
90# 
91.if ${MACHINE_ARCH} == "powerpc64"
92_PQ="\.?"
93.else
94_PQ=
95.endif
96
97rump_symren: __archivebuild
98.if !defined(RUMP_SYMREN)
99	@echo "Must supply RUMP_SYMREN for target rump_symren"
100	@false
101.endif
102
103# if we are called from lib build (RUMP_SYMREN is not specified),
104# build the arrrrchive.  otherwise just rename symbols.
105__archivebuild: .USE
106.if defined(RUMP_SYMREN) && defined(RUMPTOP)
107	@echo "ERROR: RUMP_SYMREN can only be used standalone"
108	@false
109.endif
110.if defined(RUMP_SYMREN)
111	${_MKMSG} " symbol rename " ${RUMP_SYMREN}
112.else
113	${_MKTARGET_BUILD}
114	rm -f ${.TARGET}
115	${AR} ${_ARFL} ${.TARGET} `NM=${NM} ${LORDER} ${.ALLSRC:M*o} | ${TSORT}`
116.endif
117	${NM} -go ${RUMP_SYMREN:U${.TARGET}} | ${TOOL_AWK} '	\
118	    $$NF!~/^'${_PQ}'(rump|RUMP|__|_GLOBAL_OFFSET_TABLE'${_SYMQUIRK}')/ \
119	      {s = $$NF; sub(/^'${_PQ}'/, "&rumpns_", s); print $$NF, s}' \
120	    | sort | uniq  > renametab.${.TARGET}
121	${OBJCOPY} --preserve-dates --redefine-syms \
122	    renametab.${.TARGET} ${RUMP_SYMREN:U${.TARGET}}
123	rm -f renametab.${.TARGET}
124.if !defined(RUMP_SYMREN)
125	${AR} ${_ARRANFL} ${.TARGET}
126.endif
127
128_BSD_IOCONF_MK_USER_=1
129.include <bsd.ioconf.mk>
130
131.-include "${NETBSDSRCDIR}/sys/arch/${MACHINE_CPU}/include/Makefile.inc"
132.-include "${NETBSDSRCDIR}/sys/arch/${MACHINE}/include/Makefile.inc"
133