795967533e
to access both NetBSD kernel facilities and facilities provided by the environment. Where the environment's headers can be #included without namespace conflict (which can be done - with care - for some Xen mini-os headers), it is convenient to simply allow the rump kernel code to call directly into the environment. This also requires not mangling the symbol names. So provide a variable RUMP_SYM_NORENAME which can be set by a component namefile to a series of symbols or symbol prefixes (in makefile-quoted awk regexp syntax). For example, in the rumpuser-xen xenbus driver: RUMP_SYM_NORENAME=xenbus_|HYPERVISOR_|wake$$|block$$|schedule$$|force_evtchn Signed-off-by: Ian Jackson <Ian.Jackson@eu.citrix.com> (proposed on rumpkernel-users; very minor modification by myself)
230 lines
7.1 KiB
Makefile
230 lines
7.1 KiB
Makefile
# $NetBSD: Makefile.rump,v 1.98 2014/06/20 11:57:56 pooka Exp $
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#
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.if !defined(_RUMP_MK)
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_RUMP_MK= #defined
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WARNS?= 3 # XXX: src/sys won't compile with -Wsign-compare yet
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NOLINT= # kernel code
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.include <bsd.own.mk>
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# Use NetBSD kernel ABI by default on x86 archs. Performance-related
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# compile-time options may override this at a later date.
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.if (${MACHINE_ARCH} == "i386" || ${MACHINE_ARCH} == "x86_64")
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_RUMP_NATIVEABI= yes
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CPPFLAGS+= -D_RUMP_NATIVE_ABI
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.else
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_RUMP_NATIVEABI= no
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CPPFLAGS:= -I${RUMPTOP}/include ${CPPFLAGS}
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CPPFLAGS+= -D_RUMPKERNEL -I${RUMPTOP}/librump/rumpkern
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.endif
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CPPFLAGS+= -DMAXUSERS=32
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CPPFLAGS+= -DCOMPAT_50=1 -DCOMPAT_60=1
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CPPFLAGS+= -nostdinc
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CFLAGS+= -ffreestanding -fno-strict-aliasing
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CWARNFLAGS+= -Wno-format-zero-length -Wno-pointer-sign
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CPPFLAGS+= -D_KERNEL -DMULTIPROCESSOR -D_MODULE -DMODULAR
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CPPFLAGS+= -DDEBUGPRINT
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CPPFLAGS+= -I${.CURDIR} -I.
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CPPFLAGS+= -I${RUMPTOP}/../../common/include
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CPPFLAGS+= -I${RUMPTOP}/include
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CPPFLAGS+= -I${RUMPTOP}/librump/rumpkern/opt
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.ifdef NEED_ISYSTEM
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CPPFLAGS+= -isystem ${RUMPTOP}/../arch
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CPPFLAGS+= -isystem ${RUMPTOP}/..
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.else
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CPPFLAGS+= -I${RUMPTOP}/../arch
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CPPFLAGS+= -I${RUMPTOP}/..
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.endif
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RUMP_LDSCRIPT?= GNU
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.if ${RUMP_LDSCRIPT} != "no"
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# my ld or yours?
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.if ${RUMP_LDSCRIPT} == "sun"
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LDFLAGS+= -Wl,-M ${RUMPTOP}/ldscript_sun.rump
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SRCS+= linksyms_sun.c
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.PATH: ${RUMPTOP}
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.elif ${RUMP_LDSCRIPT} == "GNU"
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LDFLAGS+= -Wl,-T,${RUMPTOP}/ldscript.rump
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.elif ${RUMP_LDSCRIPT} == "ctor"
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CPPFLAGS+= -DRUMP_USE_CTOR
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.else
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.error Unknown ldscript ${RUMP_LDSCRIPT}
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.endif
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.endif
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.if defined(RUMP_CURLWP)
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.if ${RUMP_CURLWP} == "hypercall"
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CPPFLAGS+= -DRUMP_CURLWP=RUMP_CURLWP_HYPERCALL
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.elif ${RUMP_CURLWP} == "__thread"
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CPPFLAGS+= -DRUMP_CURLWP=RUMP_CURLWP___THREAD
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.elif ${RUMP_CURLWP} == "register"
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CPPFLAGS+= -DRUMP_CURLWP=RUMP_CURLWP_REGISTER
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.else
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.error Unsupported curlwp scheme: ${RUMP_CURLWP}
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.endif
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.endif
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RUMP_DIAGNOSTIC?=yes
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.if ${RUMP_DIAGNOSTIC} == "yes"
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CPPFLAGS+= -DDIAGNOSTIC
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.endif
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.ifdef RUMP_DEBUG
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CPPFLAGS+= -DDEBUG
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.endif
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.ifdef RUMP_LOCKDEBUG
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CPPFLAGS+= -DLOCKDEBUG
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.endif
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RUMP_KTRACE?=yes
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.if ${RUMP_KTRACE} == "yes"
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CPPFLAGS+= -DKTRACE
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.endif
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# kernel libs should not get linked against libc
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# XXX: actually, we would like to enable this but cannot, since it
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# also leaves out libgcc, it causes problems on some platforms.
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# revisit some day.
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#LDFLAGS+= -nodefaultlibs
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# make sure __NetBSD__ gets defined (for builds on non-NetBSD)
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# also, give those builds a way to undef the local compiler's macros
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CPPFLAGS+= -D__NetBSD__ ${RUMPKERN_UNDEF}
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RUMPKERNEL= This is NetBSD and I am the rump. Good evening.
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# workaround: evbppc is not a well-defined arch
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.if (${MACHINE} == "evbppc")
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CPPFLAGS+= -DPPC_OEA
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.endif
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# If this file changes, we need a full rebuild
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DPSRCS+= ${RUMPTOP}/Makefile.rump
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#
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# Support for component-specific hypercalls
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#
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# XXX: Warning flags are not in CWARNFLAGS. Manually add a few important ones.
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.ifdef RUMPCOMP_USER
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.warning RUMPCOMP_USER is deprecated. Use RUMPCOMP_USER_SRCS
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RUMPCOMP_USER_SRCS= rumpcomp_user.c
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.endif
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.ifdef RUMPCOMP_USER_SRCS && !defined(RUMPKERN_ONLY)
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.if empty(DESTDIR)
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DESTDIR=/
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.endif
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BUILDRUMP_CPPFLAGS ?= -isysroot ${DESTDIR}
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RUMPCOMP_USER_WERROR = ${${_NOWERROR} == "no" :?-Werror:}
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.for rcusrc in ${RUMPCOMP_USER_SRCS:R}
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${rcusrc}.d: ${rcusrc}.c
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${_MKTARGET_CREATE}
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${MKDEP} -f ${.TARGET} -- ${MKDEPFLAGS} ${BUILDRUMP_CPPFLAGS} ${RUMPCOMP_USER_CPPFLAGS} ${.ALLSRC:O:u:M*${rcusrc}.c}
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${rcusrc}.o: ${rcusrc}.c
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${_MKTARGET_COMPILE}
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${CC} -o ${.TARGET} ${DBG} ${CWARNFLAGS} ${RUMPCOMP_USER_WERROR} -Wall -Wmissing-prototypes ${BUILDRUMP_CPPFLAGS} ${BUILDRUMP_CFLAGS} ${RUMPCOMP_USER_CPPFLAGS} ${RUMPCOMP_USER_CFLAGS} -c ${.ALLSRC:O:u:M*${rcusrc}.c}
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${rcusrc}.pico: ${rcusrc}.c
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${_MKTARGET_COMPILE}
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${CC} -o ${.TARGET} -fPIC -DPIC ${DBG} ${CWARNFLAGS} ${RUMPCOMP_USER_WERROR} -Wall -Wmissing-prototypes ${BUILDRUMP_CPPFLAGS} ${BUILDRUMP_CFLAGS} ${RUMPCOMP_USER_CPPFLAGS} ${RUMPCOMP_USER_CFLAGS} -c ${.ALLSRC:O:u:M*${rcusrc}.c}
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${rcusrc}.po: ${rcusrc}.c
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${_MKTARGET_COMPILE}
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${CC} -o ${.TARGET} ${PROFFLAGS} -pg ${DBG} ${CWARNFLAGS} ${RUMPCOMP_USER_WERROR} -Wall -Wmissing-prototypes ${BUILDRUMP_CPPFLAGS} ${BUILDRUMP_CFLAGS} ${RUMPCOMP_USER_CPPFLAGS} ${RUMPCOMP_USER_CFLAGS} -c ${.ALLSRC:O:u:M*${rcusrc}.c}
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RUMPOBJ_NORENAME+=${rcusrc}.o ${rcusrc}.pico ${rcusrc}.po
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SRCS+=${rcusrc}.c
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.endfor
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.endif
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#
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# Rename library symbols before use. If a symbol does not already belong
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# to a rump namespace ("rump" or "RUMP"), prefix it with "rumpns". This
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# avoids accidentally linking any kernel symbol against host platform
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# libraries. The only non-renamed symbols are linkset delimiters and
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# the GOT, which are more a property of the compiler than the kernel.
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#
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# Some toolchains generate unresolved symbols which are supposed to be
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# satisfied by the toolchain itself when the program is linked.
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# Unfortunately, we do not know which of the symbols are generated by
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# the toolchain. Worse, they vary from platform to platform and
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# toolchain to toolchain. The good news, however, is that this will
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# be detected by a compile-time failure, so we can fairly easily manage
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# a quirktable here.
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#
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# We also allow calling ourselves externally with e.g.:
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# make -f /sys/rump/Makefile.rump RUMP_SYMREN=ffs.kobj
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#
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.if ${MACHINE_CPU} == "mips"
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_SYMQUIRK='|_gp_disp'
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.elif ${MACHINE_CPU} == "hppa"
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_SYMQUIRK='|\$$\$$'
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.elif ${MACHINE_ARCH} == "powerpc64"
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_SYMQUIRK="|PF_funcs"
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.endif
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#
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# Prefix quirks. At least one toolchain generates global
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# symbols with prefixes which really need to remain as prefixes
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# (i.e. the '.' on the front of some ppc64 globals). The
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# way to know if you have the problem is if you get later
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# complaints about symbols like 'rumpns_XrumpBLAH' or 'XrumpBLAH';
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# the 'X' part was added by the toolchain and will need to
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# be mentioned here.
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#
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.if ${MACHINE_ARCH} == "powerpc64"
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_PQ="\.?"
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.else
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_PQ=
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.endif
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rump_symren: __archivebuild
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.if !defined(RUMP_SYMREN)
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@echo "Must supply RUMP_SYMREN for target rump_symren"
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@false
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.endif
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# if we are called from lib build (RUMP_SYMREN is not specified),
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# build the arrrrchive. otherwise just rename symbols.
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__archivebuild: .USE
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.if defined(RUMP_SYMREN) && defined(RUMPTOP)
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@echo "ERROR: RUMP_SYMREN can only be used standalone"
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@false
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.endif
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.if defined(RUMP_SYMREN)
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${_MKMSG} " symbol rename " ${RUMP_SYMREN}
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.else
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${_MKTARGET_BUILD}
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rm -f ${.TARGET}
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.endif
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for renameobj in ${RUMP_SYMREN:U${.ALLSRC:C/(${RUMPOBJ_NORENAME:ts|})//g}}; do \
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${NM} -go $${renameobj} | ${TOOL_AWK} ' \
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$$NF!~/^'${_PQ}'(rump|RUMP|__|_GLOBAL_OFFSET_TABLE'${_SYMQUIRK}'${RUMP_SYM_NORENAME:D|${RUMP_SYM_NORENAME}})/ \
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{s=$$NF;sub(/^'${_PQ}'/, "&rumpns_", s); print $$NF, s}'\
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| sort | uniq > renametab.$${renameobj}; \
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${OBJCOPY} --preserve-dates --redefine-syms \
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renametab.$${renameobj} $${renameobj}; \
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rm -f renametab.$${renameobj}; \
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done
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.if !defined(RUMP_SYMREN)
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${AR} ${_ARFL} ${.TARGET} \
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`NM=${NM} ${LORDER} ${.ALLSRC:M*o} | ${TSORT}`
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.endif
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_BSD_IOCONF_MK_USER_=1
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.include <bsd.ioconf.mk>
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.-include "${NETBSDSRCDIR}/sys/arch/${MACHINE_CPU}/include/Makefile.inc"
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.-include "${NETBSDSRCDIR}/sys/arch/${MACHINE}/include/Makefile.inc"
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.endif # _RUMP_MK
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