1#	$NetBSD: Makefile.rump,v 1.138 2024/05/20 04:16:48 christos Exp $
2#
3
4.if !defined(_RUMP_MK)
5_RUMP_MK= #defined
6
7WARNS?=		3	# XXX: src/sys won't compile with -Wsign-compare yet
8NOLINT=		# kernel code
9
10.include <bsd.own.mk>
11
12# Use NetBSD kernel ABI by default on x86 archs.  Performance-related
13# compile-time options may override this at a later date.
14.if (${MACHINE_ARCH} == "i386" || ${MACHINE_ARCH} == "x86_64")
15_RUMP_NATIVEABI= yes
16.else
17_RUMP_NATIVEABI= no
18CPPFLAGS:=	-I${RUMPTOP}/include ${CPPFLAGS}
19CPPFLAGS+=	-D_RUMPKERNEL -I${RUMPTOP}/librump/rumpkern
20.endif
21
22# We are compiling the kernel code with no-delete-null-pointer-checks,
23# and compiling without it, causes issues at least on sh3 by adding
24# aborts after kern_assert on NULL pointer checks.
25CFLAGS+=    ${${ACTIVE_CC} == "gcc":? -fno-delete-null-pointer-checks :}
26
27.if ${RUMP_SANITIZE:Uno} != "no"
28CFLAGS+=	-fsanitize=${RUMP_SANITIZE}
29LDFLAGS+=	-fsanitize=${RUMP_SANITIZE}
30.endif
31
32# NULL + 0 arithmetic raises LLVM UBSan warnings, specially in sys/pslist.h
33# in the type-safe macros _PSLIST_VALIDATE_PTRS and _PSLIST_VALIDATE_CONTAINER.
34.if ${MKSANITIZER:Uno} == "yes" || ${MKLIBCSANITIZER:Uno} == "yes"
35CFLAGS+=    ${${ACTIVE_CC} == "clang":? -fno-delete-null-pointer-checks :}
36.endif
37
38# Define baseline cpu for mips ports, required for
39# rumpcomp_sync_icache() hypercall.
40.if !empty(MACHINE_ARCH:Mmips*)
41.if ${MACHINE_MIPS64}
42CPPFLAGS+=	-DMIPS64=1
43.else
44CPPFLAGS+=	-DMIPS1=1
45.endif
46.endif
47
48# which NetBSD compat to build
49RUMP_NBCOMPAT?=default
50.if ${RUMP_NBCOMPAT} == "all" || ${RUMP_NBCOMPAT} == "default"
51RUMP_NBCOMPAT=	50 60 70 80 90 100 110
52.endif
53.if ${RUMP_NBCOMPAT} == "none"
54RUMP_NBCOMPAT=
55.endif
56RUMP_NBCOMPAT:=	${RUMP_NBCOMPAT:S/,/ /g}
57CPPFLAGS+=	${RUMP_NBCOMPAT:C/^[1-9][0-9]*/-DCOMPAT_&/g}
58
59CPPFLAGS+=	-nostdinc
60CFLAGS+=	-ffreestanding -fno-strict-aliasing
61
62CWARNFLAGS+=	-Wno-format-zero-length -Wno-pointer-sign
63
64CPPIFLAGS+=	-imacros ${RUMPTOP}/include/opt/opt_rumpkernel.h
65.ifdef BUILDRUMP_IMACROS
66CPPIFLAGS+=	-imacros ${BUILDRUMP_IMACROS}
67.endif
68
69CPPFLAGS+=	-I${.CURDIR} -I.
70CPPFLAGS+=	-I${RUMPTOP}/../../common/include
71CPPFLAGS+=	-I${RUMPTOP}/include
72CPPFLAGS+=	-I${RUMPTOP}/include/opt
73
74SHLIB_MAJOR?=	0
75SHLIB_MINOR?=	0
76
77.ifdef NEED_ISYSTEM
78CPPIFLAGS+=	-isystem ${RUMPTOP}/../arch
79CPPIFLAGS+=	-isystem ${RUMPTOP}/..
80.else
81CPPFLAGS+=	-I${RUMPTOP}/../arch
82CPPFLAGS+=	-I${RUMPTOP}/..
83.endif
84
85RUMP_LDSCRIPT?=	GNU
86.if ${RUMP_LDSCRIPT} != "no"
87# my ld or yours?
88.if ${RUMP_LDSCRIPT} == "sun"
89LDFLAGS+=	-Wl,-M ${RUMPTOP}/ldscript_sun.rump
90SRCS+=		linksyms_sun.c
91.PATH:		${RUMPTOP}
92.elif ${RUMP_LDSCRIPT} == "GNU"
93LDFLAGS+=	-Wl,-T,${RUMPTOP}/ldscript.rump
94.elif ${RUMP_LDSCRIPT} == "ctor"
95CPPFLAGS+=	-DRUMP_USE_CTOR
96.else
97.error Unknown ldscript ${RUMP_LDSCRIPT}
98.endif
99.endif
100
101.if defined(RUMP_CURLWP)
102.if   ${RUMP_CURLWP} == "hypercall"
103CPPFLAGS+=	-DRUMP_CURLWP=RUMP_CURLWP_HYPERCALL
104.elif ${RUMP_CURLWP} == "__thread"
105CPPFLAGS+=	-DRUMP_CURLWP=RUMP_CURLWP___THREAD
106.elif ${RUMP_CURLWP} == "register"
107CPPFLAGS+=	-DRUMP_CURLWP=RUMP_CURLWP_REGISTER
108.else
109.error Unsupported curlwp scheme: ${RUMP_CURLWP}
110.endif
111.endif
112
113RUMP_DIAGNOSTIC?=yes
114.if ${RUMP_DIAGNOSTIC} == "yes"
115CPPFLAGS+=	-DDIAGNOSTIC
116.endif
117
118.ifdef RUMP_DEBUG
119CPPFLAGS+=	-DDEBUG
120.endif
121
122.ifdef RUMP_LOCKDEBUG
123CPPFLAGS+=	-DLOCKDEBUG
124.endif
125
126.ifdef RUMP_VNODE_LOCKDEBUG
127CPPFLAGS+=	-DVNODE_LOCKDEBUG
128.endif
129
130RUMP_KTRACE?=yes
131.if ${RUMP_KTRACE} == "yes"
132CPPFLAGS+=	-DKTRACE
133.endif
134
135# kernel libs should not get linked against libc
136# XXX: actually, we would like to enable this but cannot, since it
137# also leaves out libgcc, it causes problems on some platforms.
138# revisit some day.
139#LDFLAGS+=	-nodefaultlibs
140
141# make sure __NetBSD__ gets defined (for builds on non-NetBSD)
142# also, give those builds a way to undef the local compiler's macros
143CPPFLAGS+=	${RUMPKERN_UNDEF}
144
145RUMPKERNEL=	This is NetBSD and I am the rump.  Good evening.
146
147# workaround: evbppc is not a well-defined arch
148.if ${MACHINE} == "evbppc"
149.  if ${MACHINE_ARCH} == "powerpc"
150CPPFLAGS+=	-DPPC_OEA
151.  else
152CPPFLAGS+=	-DPPC_OEA64
153.  endif
154.endif
155
156# If any of these files change, we need a full rebuild
157DPSRCS+=	${RUMPTOP}/Makefile.rump
158
159#
160# Support for component-specific hypercalls
161#
162
163# no easy way to get WARNS out of bsd.sys.mk
164RUMPCOMP_USER_WARNFLAGS=	-Wall -Wextra -Wno-unused-parameter
165RUMPCOMP_USER_WARNFLAGS+=	-Wstrict-prototypes -Wmissing-prototypes
166
167.ifdef RUMPCOMP_USER_SRCS && !defined(RUMPKERN_ONLY)
168.if empty(DESTDIR)
169DESTDIR=/
170.endif
171BUILDRUMP_CPPFLAGS ?= -isysroot ${DESTDIR}
172RUMPCOMP_USER_WERROR = ${${_NOWERROR} == "no" :?-Werror:}
173.for rcusrc in ${RUMPCOMP_USER_SRCS:R}
174${rcusrc}.d: ${rcusrc}.c
175	${_MKTARGET_CREATE}
176	${MKDEP} -f ${.TARGET} -- ${MKDEPFLAGS} ${CPUFLAGS} ${REPROFLAGS} ${BUILDRUMP_CPPFLAGS} ${RUMPCOMP_USER_CPPFLAGS} ${.ALLSRC:O:u:M*${rcusrc}.c}
177
178${rcusrc}.o: ${rcusrc}.c
179	${_MKTARGET_COMPILE}
180	${CC} -o ${.TARGET} ${DBG} ${CWARNFLAGS} ${CPUFLAGS} ${REPROFLAGS} ${RUMPCOMP_USER_WERROR} ${RUMPCOMP_USER_WARNFLAGS} ${BUILDRUMP_CPPFLAGS} ${BUILDRUMP_CFLAGS} ${RUMPCOMP_USER_CPPFLAGS} ${RUMPCOMP_USER_CFLAGS} -c ${.ALLSRC:O:u:M*${rcusrc}.c}
181
182${rcusrc}.pico: ${rcusrc}.c
183	${_MKTARGET_COMPILE}
184	${CC} -o ${.TARGET} -fPIC -DPIC ${DBG} ${CWARNFLAGS} ${CPUFLAGS} ${REPROFLAGS} ${RUMPCOMP_USER_WERROR} ${RUMPCOMP_USER_WARNFLAGS} ${BUILDRUMP_CPPFLAGS} ${BUILDRUMP_CFLAGS} ${RUMPCOMP_USER_CPPFLAGS} ${RUMPCOMP_USER_CFLAGS} -c ${.ALLSRC:O:u:M*${rcusrc}.c}
185
186${rcusrc}.po: ${rcusrc}.c
187	${_MKTARGET_COMPILE}
188	${CC} -o ${.TARGET} ${PROFFLAGS} -pg ${DBG} ${CWARNFLAGS} ${CPUFLAGS} ${REPROFLAGS} ${RUMPCOMP_USER_WERROR} ${RUMPCOMP_USER_WARNFLAGS} ${BUILDRUMP_CPPFLAGS} ${BUILDRUMP_CFLAGS} ${RUMPCOMP_USER_CPPFLAGS} ${RUMPCOMP_USER_CFLAGS} -c ${.ALLSRC:O:u:M*${rcusrc}.c}
189
190RUMPOBJ_NORENAME+=${rcusrc}.o ${rcusrc}.pico ${rcusrc}.po
191SRCS+=${rcusrc}.c
192.endfor
193.endif
194
195#
196# Rename library symbols before use.  If a symbol does not already belong
197# to a rump namespace ("rump" or "RUMP"), prefix it with "rumpns".  This
198# avoids accidentally linking any kernel symbol against host platform
199# libraries.  The only non-renamed symbols are linkset delimiters and
200# the GOT, which are more a property of the compiler than the kernel.
201#
202# Some toolchains generate unresolved symbols which are supposed to be
203# satisfied by the toolchain itself when the program is linked.
204# Unfortunately, we do not know which of the symbols are generated by
205# the toolchain.  Worse, they vary from platform to platform and
206# toolchain to toolchain.  The good news, however, is that this will
207# be detected by a compile-time failure, so we can fairly easily manage
208# a quirktable here.
209#
210# We also allow calling ourselves externally with e.g.:
211# make -f /sys/rump/Makefile.rump RUMP_SYMREN=ffs.kobj
212#
213.if ${MACHINE_CPU} == "mips"
214_SYMQUIRK='|_gp_disp'
215.elif ${MACHINE_CPU} == "hppa"
216_SYMQUIRK='|\$$\$$'
217.elif ${MACHINE_ARCH} == "powerpc64"
218_SYMQUIRK="|PF_funcs"
219.endif
220
221#
222# Prefix quirks.  At least one toolchain generates global
223# symbols with prefixes which really need to remain as prefixes
224# (i.e. the '.' on the front of some ppc64 globals).  The
225# way to know if you have the problem is if you get later
226# complaints about symbols like 'rumpns_XrumpBLAH' or 'XrumpBLAH';
227# the 'X' part was added by the toolchain and will need to
228# be mentioned here.
229# 
230.if ${MACHINE_ARCH} == "powerpc64"
231_PQ="\.?"
232.else
233_PQ=
234.endif
235
236rump_symren: __archivebuild
237.if !defined(RUMP_SYMREN)
238	@echo "Must supply RUMP_SYMREN for target rump_symren"
239	@false
240.endif
241
242# if we are called from lib build (RUMP_SYMREN is not specified),
243# build the archive.  otherwise just rename symbols.
244__archivebuild: .USE
245.if defined(RUMP_SYMREN) && defined(RUMPTOP)
246	@echo "ERROR: RUMP_SYMREN can only be used standalone"
247	@false
248.endif
249.if defined(RUMP_SYMREN)
250	${_MKMSG} " symbol rename " ${RUMP_SYMREN}
251.else
252	${_MKTARGET_BUILD}
253	rm -f ${.TARGET}
254.endif
255	for renameobj in ${RUMP_SYMREN:U${.ALLSRC:C/(${RUMPOBJ_NORENAME:ts|})//g}}; do \
256		${NM} -go $${renameobj} | ${TOOL_AWK} ' \
257		    $$NF!~/^'${_PQ}'(rump|RUMP|__|_GLOBAL_OFFSET_TABLE|\.TOC\.'${_SYMQUIRK}'${RUMP_SYM_NORENAME:D|${RUMP_SYM_NORENAME}})/ \
258		      {s=$$NF;sub(/^'${_PQ}'/, "&rumpns_", s); print $$NF, s}'\
259		    | sort | uniq  > renametab.$${renameobj}; \
260		${OBJCOPY} --preserve-dates --redefine-syms \
261		    renametab.$${renameobj} $${renameobj}; \
262		rm -f renametab.$${renameobj}; \
263	done
264.if !defined(RUMP_SYMREN)
265	${AR} ${_ARFL} ${.TARGET} \
266	    `NM=${NM} ${LORDER} ${.ALLSRC:M*o} | ${TSORT}`
267.endif
268
269COMMENT?=	(no description)
270rumpdescribe: .PHONY
271	@printf '%-24s %s\n' '${LIB}' '${COMMENT}'
272
273CPPFLAGS+=	${CPPIFLAGS}
274LINTFLAGS+=	${CPPIFLAGS:S/^/-Z /}
275
276_BSD_IOCONF_MK_USER_=1
277.include <bsd.ioconf.mk>
278
279.-include "${NETBSDSRCDIR}/sys/arch/${MACHINE_CPU}/include/Makefile.inc"
280.-include "${NETBSDSRCDIR}/sys/arch/${MACHINE}/include/Makefile.inc"
281
282.endif # _RUMP_MK
283