Makefile.rump revision 1.65 
1#	$NetBSD: Makefile.rump,v 1.65 2012/11/21 17:48:05 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
18CFLAGS+=	-ffreestanding -fno-strict-aliasing
19.if (defined(HAVE_GCC) && ${HAVE_GCC} >= 3) || defined(HAVE_LLVM)
20CFLAGS+=	-Wsign-compare
21CFLAGS+=	-Wno-pointer-sign -Wno-attributes
22CFLAGS+=	-std=gnu99
23.endif
24CWARNFLAGS+=	-Wno-format-zero-length -Wno-pointer-sign
25CPPFLAGS+=	-D_KERNEL -DMULTIPROCESSOR -D_MODULE -DMODULAR
26CPPFLAGS+=	-DMAXUSERS=32
27CPPFLAGS+=	-DCOMPAT_50=1
28CPPFLAGS+=	-DDEBUGPRINT
29CPPFLAGS+=	-I${.CURDIR} -I.
30CPPFLAGS+=	-I${RUMPTOP}/../../common/include
31CPPFLAGS+=	-I${RUMPTOP}/include
32CPPFLAGS+=	-I${RUMPTOP}/librump/rumpkern/opt
33CPPFLAGS+=	-nostdinc
34
35.ifdef NEED_ISYSTEM
36CPPFLAGS+=	-isystem ${RUMPTOP}/../arch
37CPPFLAGS+=	-isystem ${RUMPTOP}/..
38.else
39CPPFLAGS+=	-I${RUMPTOP}/../arch
40CPPFLAGS+=	-I${RUMPTOP}/..
41.endif
42
43LDFLAGS+=	-T ${RUMPTOP}/ldscript.rump
44
45RUMP_DIAGNOSTIC?=yes
46.if ${RUMP_DIAGNOSTIC} == "yes"
47CPPFLAGS+=	-DDIAGNOSTIC
48.endif
49
50.ifdef RUMP_DEBUG
51CPPFLAGS+=	-DDEBUG
52.endif
53
54.ifdef RUMP_LOCKDEBUG
55CPPFLAGS+=	-DLOCKDEBUG
56.endif
57
58# kernel libs should not get linked against libc
59# XXX: actually, we would like to enable this but cannot, since it
60# also leaves out libgcc, it causes problems on some platforms.
61# revisit some day.
62#LDFLAGS+=	-nodefaultlibs
63
64# make sure __NetBSD__ gets defined (for builds on non-NetBSD)
65# aaand make sure cc doesn't source files any wild ideas
66CPPFLAGS+=	-D__NetBSD__
67CPPFLAGS+=	-Ulinux -U__linux -U__linux__ -U__gnu_linux__
68
69RUMPKERNEL=	This is NetBSD and I am the rump.  Good evening.
70
71# workaround: evbppc is not a well-defined arch
72.if (${MACHINE} == "evbppc")
73CPPFLAGS+=	-DPPC_OEA
74.endif
75
76# If this file changes, we need a full rebuild
77DPSRCS+=	${RUMPTOP}/Makefile.rump
78
79#
80# Rename library symbols before use.  If a symbol does not already belong
81# to a rump namespace ("rump" or "RUMP"), prefix it with "rumpns".  This
82# avoids accidentally linking any kernel symbol against host platform
83# libraries.  The only non-renamed symbols are linkset delimiters and
84# the GOT, which are more a property of the compiler than the kernel.
85#
86# Some toolchains generate unresolved symbols which are supposed to be
87# satisfied by the toolchain itself when the program is linked.
88# Unfortunately, we do not know which of the symbols are generated by
89# the toolchain.  Worse, they vary from platform to platform and
90# toolchain to toolchain.  The good news, however, is that this will
91# be detected by a compile-time failure, so we can fairly easily manage
92# a quirktable here.
93#
94# We also allow calling ourselves externally with e.g.:
95# make -f /sys/rump/Makefile.rump RUMP_SYMREN=ffs.kobj
96#
97.if ${MACHINE_CPU} == "mips"
98_SYMQUIRK='|_gp_disp'
99.elif ${MACHINE_CPU} == "hppa"
100_SYMQUIRK='|\$$\$$'
101.elif ${MACHINE_ARCH} == "powerpc64"
102_SYMQUIRK="|PF_funcs"
103.endif
104
105#
106# Prefix quirks.  At least one toolchain generates global
107# symbols with prefixes which really need to remain as prefixes
108# (i.e. the '.' on the front of some ppc64 globals).  The
109# way to know if you have the problem is if you get later
110# complaints about symbols like 'rumpns_XrumpBLAH' or 'XrumpBLAH';
111# the 'X' part was added by the toolchain and will need to
112# be mentioned here.
113# 
114.if ${MACHINE_ARCH} == "powerpc64"
115_PQ="\.?"
116.else
117_PQ=
118.endif
119
120rump_symren: __archivebuild
121.if !defined(RUMP_SYMREN)
122	@echo "Must supply RUMP_SYMREN for target rump_symren"
123	@false
124.endif
125
126# if we are called from lib build (RUMP_SYMREN is not specified),
127# build the arrrrchive.  otherwise just rename symbols.
128__archivebuild: .USE
129.if defined(RUMP_SYMREN) && defined(RUMPTOP)
130	@echo "ERROR: RUMP_SYMREN can only be used standalone"
131	@false
132.endif
133.if defined(RUMP_SYMREN)
134	${_MKMSG} " symbol rename " ${RUMP_SYMREN}
135.else
136	${_MKTARGET_BUILD}
137	rm -f ${.TARGET}
138	${AR} ${_ARFL} ${.TARGET} `NM=${NM} ${LORDER} ${.ALLSRC:M*o} | ${TSORT}`
139.endif
140	${NM} -go ${RUMP_SYMREN:U${.TARGET}} | ${TOOL_AWK} '	\
141	    $$NF!~/^'${_PQ}'(rump|RUMP|__|_GLOBAL_OFFSET_TABLE'${_SYMQUIRK}')/ \
142	      {s = $$NF; sub(/^'${_PQ}'/, "&rumpns_", s); print $$NF, s}' \
143	    | sort | uniq  > renametab.${.TARGET}
144	${OBJCOPY} --preserve-dates --redefine-syms \
145	    renametab.${.TARGET} ${RUMP_SYMREN:U${.TARGET}}
146	rm -f renametab.${.TARGET}
147.if !defined(RUMP_SYMREN)
148	${AR} ${_ARRANFL} ${.TARGET}
149.endif
150
151_BSD_IOCONF_MK_USER_=1
152.include <bsd.ioconf.mk>
153
154.-include "${NETBSDSRCDIR}/sys/arch/${MACHINE_CPU}/include/Makefile.inc"
155.-include "${NETBSDSRCDIR}/sys/arch/${MACHINE}/include/Makefile.inc"
156