Makefile.rump revision 1.49 
1#	$NetBSD: Makefile.rump,v 1.49 2010/02/09 16:16:26 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# use kernel ABI instead of rump ABI (needs md code)
10.ifndef RUMPKMOD
11CPPFLAGS:=	-I${RUMPTOP}/include ${CPPFLAGS}
12.endif
13
14CFLAGS+=	-ffreestanding -fno-strict-aliasing
15CWARNFLAGS+=	-Wno-format-zero-length
16CPPFLAGS+=	-D_RUMPKERNEL
17CPPFLAGS+=	-D_KERNEL -DMULTIPROCESSOR -D_MODULE -DMODULAR
18CPPFLAGS+=	-DMAXUSERS=32
19CPPFLAGS+=	-DDIAGNOSTIC
20CPPFLAGS+=	-DCOMPAT_50
21CPPFLAGS+=	-DDEBUGPRINT
22CPPFLAGS+=	-I${.CURDIR} -I.
23CPPFLAGS+=	-I${RUMPTOP}/../../common/include -I${RUMPTOP}/../arch
24CPPFLAGS+=	-I${RUMPTOP}/include
25CPPFLAGS+=	-I${RUMPTOP}/librump/rumpkern/opt
26CPPFLAGS+=	-nostdinc -I${RUMPTOP}/..
27LDFLAGS+=	-T ${RUMPTOP}/ldscript.rump
28#CPPFLAGS+=	-DDEBUG
29
30# kernel libs should not get linked against libc
31# XXX: actually, we would like to enable this but cannot, since it
32# also leaves out libgcc, it causes problems on some platforms.
33# revisit some day.
34#LDFLAGS+=	-nodefaultlibs
35
36# make sure __NetBSD__ gets defined (for builds on non-NetBSD)
37CPPFLAGS+=	-D__NetBSD__
38
39RUMPKERNEL=	This is NetBSD and I am the rump.  Good evening.
40
41# workaround: evbppc is not a well-defined arch
42.if (${MACHINE} == "evbppc")
43CPPFLAGS+=	-DPPC_OEA
44.endif
45
46# If this file changes, we need a full rebuild
47DPSRCS+=	${RUMPTOP}/Makefile.rump
48
49#
50# Rename library symbols before use.  If a symbol does not already belong
51# to a rump namespace ("rump" or "RUMP"), prefix it with "rumpns".  This
52# avoids accidentally linking any kernel symbol against host platform
53# libraries.  The only non-renamed symbols are linkset delimiters and
54# the GOT, which are more a property of the compiler than the kernel.
55#
56# Some toolchains generate unresolved symbols which are supposed to be
57# satisfied by the toolchain itself when the program is linked.
58# Unfortunately, we do not know which of the symbols are generated by
59# the toolchain.  Worse, they vary from platform to platform and
60# toolchain to toolchain.  The good news, however, is that this will
61# be detected by a compile-time failure, so we can fairly easily manage
62# a quirktable here.
63#
64# We also allow calling ourselves externally with e.g.:
65# make -f /sys/rump/Makefile.rump RUMP_SYMREN=ffs.kobj
66#
67.if ${MACHINE_CPU} == "mips"
68_SYMQUIRK='|_gp_disp'
69.elif ${MACHINE_CPU} == "hppa"
70_SYMQUIRK='|\$$\$$'
71.endif
72
73rump_symren: __archivebuild
74.if !defined(RUMP_SYMREN)
75	@echo "Must supply RUMP_SYMREN for target rump_symren"
76	@false
77.endif
78
79# if we are called from lib build (RUMP_SYMREN is not specified),
80# build the arrrrchive.  otherwise just rename symbols.
81__archivebuild: .USE
82.if defined(RUMP_SYMREN) && defined(RUMPTOP)
83	@echo "ERROR: RUMP_SYMREN can only be used standalone"
84	@false
85.endif
86.if defined(RUMP_SYMREN)
87	${_MKMSG} " symbol rename " ${RUMP_SYMREN}
88.else
89	${_MKTARGET_BUILD}
90	rm -f ${.TARGET}
91	${AR} ${_ARFL} ${.TARGET} `NM=${NM} ${LORDER} ${.ALLSRC:M*o} | ${TSORT}`
92.endif
93	${NM} -go ${RUMP_SYMREN:U${.TARGET}} | ${TOOL_AWK} '	\
94	    $$NF!~/^(rump|RUMP|__|_GLOBAL_OFFSET_TABLE'${_SYMQUIRK}')/ \
95	      {printf "%s rumpns_%s\n", $$NF, $$NF}' \
96	    | sort | uniq  > renametab.${.TARGET}
97	${OBJCOPY} --preserve-dates --redefine-syms \
98	    renametab.${.TARGET} ${RUMP_SYMREN:U${.TARGET}}
99	rm -f renametab.${.TARGET}
100.if !defined(RUMP_SYMREN)
101	${AR} ${_ARRANFL} ${.TARGET}
102.endif
103
104# If IOCONFIG is defined, autocreate ioconf.c and locators.h.
105# This is useful mainly for devices.
106.if !empty(IOCONFIG)
107ioconf.c: ${IOCONFIG}
108	${TOOL_CONFIG} -b ${.OBJDIR} -s ${RUMPTOP}/.. ${.CURDIR}/${IOCONFIG}
109	# config doesn't change the files if they're unchanged.  however,
110	# here we want to satisfy our make dependency, so force a
111	# timestamp update
112	touch ioconf.c locators.h
113
114locators.h: ioconf.c
115
116CLEANFILES+= ioconf.c locators.h
117DPSRCS+= ioconf.c locators.h
118.endif
119
120.-include "${NETBSDSRCDIR}/sys/arch/${MACHINE_CPU}/include/Makefile.inc"
121.-include "${NETBSDSRCDIR}/sys/arch/${MACHINE}/include/Makefile.inc"
122