9b0f1823b5
now type sema_t is a structure which can be put in a shared memory area, and multiple processes can operate it concurrently. User can either use mmap(MAP_SHARED) + sem_init(pshared=1) or use sem_open() to initialize a shared semaphore. Named semaphore uses file system and is located in /tmp directory, and its file name is prefixed with 'SEMD', so now it is chroot or jail friendly. In simplist cases, both for named and un-named semaphore, userland code does not have to enter kernel to reduce/increase semaphore's count. The semaphore is designed to be crash-safe, it means even if an application is crashed in the middle of operating semaphore, the semaphore state is still safely recovered by later use, there is no waiter counter maintained by userland code. The main semaphore code is in libc and libthr only has some necessary stubs, this makes it possible that a non-threaded application can use semaphore without linking to thread library. Old semaphore implementation is kept libc to maintain binary compatibility. The kernel ksem API is no longer used in the new implemenation. Discussed on: threads@
307 lines
9.5 KiB
Makefile
307 lines
9.5 KiB
Makefile
# @(#)Makefile 8.2 (Berkeley) 1/4/94
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# $FreeBSD$
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#
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# Doing a "make install" builds /usr/include.
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.include <bsd.own.mk>
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CLEANFILES= osreldate.h version vers.c
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SUBDIR= arpa gssapi protocols rpcsvc rpc
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INCS= a.out.h ar.h assert.h bitstring.h complex.h cpio.h _ctype.h ctype.h \
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db.h \
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dirent.h dlfcn.h elf.h elf-hints.h err.h fmtmsg.h fnmatch.h fstab.h \
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fts.h ftw.h getopt.h glob.h grp.h gssapi.h \
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histedit.h ieeefp.h ifaddrs.h \
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inttypes.h iso646.h kenv.h langinfo.h libgen.h limits.h link.h \
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locale.h malloc.h malloc_np.h memory.h monetary.h mpool.h mqueue.h \
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ndbm.h netconfig.h \
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netdb.h nl_types.h nlist.h nss.h nsswitch.h paths.h \
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printf.h proc_service.h pthread.h \
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pthread_np.h pwd.h ranlib.h readpassphrase.h regex.h regexp.h \
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res_update.h resolv.h runetype.h search.h semaphore.h setjmp.h \
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signal.h spawn.h stab.h \
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stdbool.h stddef.h stdio.h stdlib.h string.h stringlist.h \
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strings.h sysexits.h tar.h termios.h tgmath.h \
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time.h timeconv.h timers.h ttyent.h \
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ulimit.h unistd.h utime.h utmp.h uuid.h varargs.h vis.h wchar.h \
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wctype.h wordexp.h
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MHDRS= float.h floatingpoint.h stdarg.h
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PHDRS= sched.h _semaphore.h
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LHDRS= aio.h errno.h fcntl.h linker_set.h poll.h stdint.h syslog.h \
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ucontext.h
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LDIRS= bsm cam geom net net80211 netatalk netgraph netinet netinet6 \
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netipsec ${_netipx} netnatm ${_netncp} netsmb \
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nfs nfsclient nfsserver \
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sys vm
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LSUBDIRS= cam/ata cam/scsi \
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dev/acpica dev/an dev/bktr dev/firewire dev/hwpmc \
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dev/ic dev/iicbus ${_dev_ieee488} dev/lmc dev/mfi dev/ofw \
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dev/pbio ${_dev_powermac_nvram} dev/ppbus dev/smbus \
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dev/speaker dev/usb dev/utopia dev/vkbd dev/wi \
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fs/devfs fs/fdescfs fs/fifofs fs/msdosfs fs/nfs fs/ntfs fs/nullfs \
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${_fs_nwfs} fs/portalfs fs/procfs fs/smbfs fs/udf fs/unionfs \
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geom/cache geom/concat geom/eli geom/gate geom/journal geom/label \
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geom/mirror geom/multipath geom/nop \
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geom/raid3 geom/shsec geom/stripe geom/virstor \
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netgraph/atm netgraph/netflow \
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security/audit \
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security/mac_biba security/mac_bsdextended security/mac_lomac \
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security/mac_mls security/mac_partition \
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ufs/ffs ufs/ufs
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LSUBSUBDIRS= dev/mpt/mpilib
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.if ${MACHINE_ARCH} == "powerpc"
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_dev_powermac_nvram= dev/powermac_nvram
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.endif
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.if ${MK_GPIB} != "no"
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_dev_ieee488= dev/ieee488
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.endif
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.if ${MK_HESIOD} != "no"
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INCS+= hesiod.h
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.endif
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.if ${MK_BLUETOOTH} != "no"
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LSUBSUBDIRS+= netgraph/bluetooth/include
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.endif
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# XXX unconditionally needed by <netsmb/netbios.h>
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#.if ${MK_IPX} != "no"
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_netipx= netipx
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#.endif
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.if ${MK_NCP} != "no"
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_netncp= netncp
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_fs_nwfs= fs/nwfs
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.endif
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# Define SHARED to indicate whether you want symbolic links to the system
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# source (``symlinks''), or a separate copy (``copies''). ``symlinks'' is
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# probably only useful for developers and should be avoided if you do not
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# wish to tie your /usr/include and /usr/src together.
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#SHARED= symlinks
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SHARED?= copies
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INCS+= osreldate.h
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osreldate.h: ${.CURDIR}/../sys/conf/newvers.sh ${.CURDIR}/../sys/sys/param.h \
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${.CURDIR}/Makefile
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@${ECHO} creating osreldate.h from newvers.sh
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@MAKE=${MAKE}; \
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PARAMFILE=${.CURDIR}/../sys/sys/param.h; \
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. ${.CURDIR}/../sys/conf/newvers.sh; \
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echo "$$COPYRIGHT" > osreldate.h; \
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echo "#ifdef _KERNEL" >> osreldate.h; \
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echo "#error \"<osreldate.h> cannot be used in the kernel, use <sys/param.h>\"" >> osreldate.h; \
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echo "#else" >> osreldate.h; \
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echo "#undef __FreeBSD_version" >> osreldate.h; \
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echo "#define __FreeBSD_version $$RELDATE" >> osreldate.h; \
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echo "#endif" >> osreldate.h
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.for i in ${LHDRS}
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INCSLINKS+= sys/$i ${INCLUDEDIR}/$i
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.endfor
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.for i in ${MHDRS}
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INCSLINKS+= machine/$i ${INCLUDEDIR}/$i
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.endfor
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.for i in ${PHDRS}
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INCSLINKS+= sys/$i ${INCLUDEDIR}/$i
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.endfor
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.if ${MACHINE} != ${MACHINE_ARCH}
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_MARCH=${MACHINE_ARCH}
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.endif
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.include <bsd.prog.mk>
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installincludes: ${SHARED}
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${SHARED}: compat
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# Take care of stale directory-level symlinks.
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compat:
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.for i in ${LDIRS} ${LSUBDIRS} machine ${_MARCH} crypto
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if [ -L ${DESTDIR}${INCLUDEDIR}/$i ]; then \
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rm -f ${DESTDIR}${INCLUDEDIR}/$i; \
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fi
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.endfor
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mtree -deU ${MTREE_FOLLOWS_SYMLINKS} \
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-f ${.CURDIR}/../etc/mtree/BSD.include.dist \
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-p ${DESTDIR}${INCLUDEDIR}
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.if ${MK_BIND_LIBS} != "no"
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mtree -deU ${MTREE_FOLLOWS_SYMLINKS} \
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-f ${.CURDIR}/../etc/mtree/BIND.include.dist \
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-p ${DESTDIR}${INCLUDEDIR}
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.endif
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copies:
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.for i in ${LDIRS} ${LSUBDIRS} ${LSUBSUBDIRS} altq crypto machine machine/pc \
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${_MARCH}
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.if exists(${DESTDIR}${INCLUDEDIR}/$i)
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cd ${DESTDIR}${INCLUDEDIR}/$i; \
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for h in *.h; do \
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if [ -L $$h ]; then rm -f $$h; fi; \
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done
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.endif
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.endfor
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.for i in ${LDIRS} ${LSUBDIRS:Ndev/acpica:Ndev/bktr} ${LSUBSUBDIRS}
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cd ${.CURDIR}/../sys; \
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${INSTALL} -C -o ${BINOWN} -g ${BINGRP} -m 444 $i/*.h \
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${DESTDIR}${INCLUDEDIR}/$i
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.endfor
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cd ${.CURDIR}/../sys/dev/acpica; \
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${INSTALL} -C -o ${BINOWN} -g ${BINGRP} -m 444 acpiio.h \
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${DESTDIR}${INCLUDEDIR}/dev/acpica
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cd ${.CURDIR}/../sys/dev/bktr; \
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${INSTALL} -C -o ${BINOWN} -g ${BINGRP} -m 444 ioctl_*.h \
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${DESTDIR}${INCLUDEDIR}/dev/bktr
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cd ${.CURDIR}/../sys/contrib/altq/altq; \
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${INSTALL} -C -o ${BINOWN} -g ${BINGRP} -m 444 *.h \
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${DESTDIR}${INCLUDEDIR}/altq
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cd ${.CURDIR}/../sys/fs/cd9660/; \
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${INSTALL} -C -o ${BINOWN} -g ${BINGRP} -m 444 *.h \
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${DESTDIR}${INCLUDEDIR}/isofs/cd9660
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.if ${MK_IPFILTER} != "no"
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cd ${.CURDIR}/../sys/contrib/ipfilter/netinet; \
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${INSTALL} -C -o ${BINOWN} -g ${BINGRP} -m 444 *.h \
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${DESTDIR}${INCLUDEDIR}/netinet
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.endif
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cd ${.CURDIR}/../sys/contrib/pf/net; \
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${INSTALL} -C -o ${BINOWN} -g ${BINGRP} -m 444 *.h \
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${DESTDIR}${INCLUDEDIR}/net
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cd ${.CURDIR}/../sys/crypto; \
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${INSTALL} -C -o ${BINOWN} -g ${BINGRP} -m 444 rijndael/rijndael.h \
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${DESTDIR}${INCLUDEDIR}/crypto
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cd ${.CURDIR}/../sys/opencrypto; \
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${INSTALL} -C -o ${BINOWN} -g ${BINGRP} -m 444 *.h \
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${DESTDIR}${INCLUDEDIR}/crypto
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cd ${.CURDIR}/../sys/${MACHINE}/include; \
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${INSTALL} -C -o ${BINOWN} -g ${BINGRP} -m 444 *.h \
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${DESTDIR}${INCLUDEDIR}/machine
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.if exists(${.CURDIR}/../sys/${MACHINE}/include/pc)
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cd ${.CURDIR}/../sys/${MACHINE}/include/pc; \
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${INSTALL} -C -o ${BINOWN} -g ${BINGRP} -m 444 *.h \
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${DESTDIR}${INCLUDEDIR}/machine/pc
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.endif
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.if defined(_MARCH)
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${INSTALL} -d -o ${BINOWN} -g ${BINGRP} -m 755 \
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${DESTDIR}${INCLUDEDIR}/${_MARCH}; \
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cd ${.CURDIR}/../sys/${_MARCH}/include; \
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${INSTALL} -C -o ${BINOWN} -g ${BINGRP} -m 444 *.h \
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${DESTDIR}${INCLUDEDIR}/${_MARCH}
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.if exists(${.CURDIR}/../sys/${_MARCH}/include/pc)
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${INSTALL} -d -o ${BINOWN} -g ${BINGRP} -m 755 \
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${DESTDIR}${INCLUDEDIR}/${_MARCH}/pc; \
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cd ${.CURDIR}/../sys/${_MARCH}/include/pc; \
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${INSTALL} -C -o ${BINOWN} -g ${BINGRP} -m 444 *.h \
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${DESTDIR}${INCLUDEDIR}/${_MARCH}/pc
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.endif
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.endif
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cd ${.CURDIR}/../sys/rpc; \
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${INSTALL} -C -o ${BINOWN} -g ${BINGRP} -m 444 types.h \
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${DESTDIR}${INCLUDEDIR}/rpc
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symlinks:
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@${ECHO} "Setting up symlinks to kernel source tree..."
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.for i in ${LDIRS}
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cd ${.CURDIR}/../sys/$i; \
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for h in *.h; do \
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ln -fs ../../../sys/$i/$$h ${DESTDIR}${INCLUDEDIR}/$i; \
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done
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.endfor
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.for i in ${LSUBDIRS:Ndev/acpica:Ndev/bktr}
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cd ${.CURDIR}/../sys/$i; \
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for h in *.h; do \
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ln -fs ../../../../sys/$i/$$h ${DESTDIR}${INCLUDEDIR}/$i; \
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done
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.endfor
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cd ${.CURDIR}/../sys/dev/acpica; \
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for h in acpiio.h; do \
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ln -fs ../../../../sys/dev/acpica/$$h \
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${DESTDIR}${INCLUDEDIR}/dev/acpica; \
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done
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cd ${.CURDIR}/../sys/dev/bktr; \
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for h in ioctl_*.h; do \
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ln -fs ../../../../sys/dev/bktr/$$h \
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${DESTDIR}${INCLUDEDIR}/dev/bktr; \
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done
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.for i in ${LSUBSUBDIRS}
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cd ${.CURDIR}/../sys/$i; \
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for h in *.h; do \
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ln -fs ../../../../../sys/$i/$$h ${DESTDIR}${INCLUDEDIR}/$i; \
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done
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.endfor
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cd ${.CURDIR}/../sys/contrib/altq/altq; \
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for h in *.h; do \
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ln -fs ../../../sys/contrib/altq/altq/$$h \
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${DESTDIR}${INCLUDEDIR}/altq; \
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done
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.if ${MK_IPFILTER} != "no"
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cd ${.CURDIR}/../sys/contrib/ipfilter/netinet; \
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for h in *.h; do \
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ln -fs ../../../sys/contrib/ipfilter/netinet/$$h \
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${DESTDIR}${INCLUDEDIR}/netinet; \
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done
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.endif
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cd ${.CURDIR}/../sys/contrib/pf/net; \
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for h in *.h; do \
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ln -fs ../../../sys/contrib/pf/net/$$h \
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${DESTDIR}${INCLUDEDIR}/net; \
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done
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cd ${.CURDIR}/../sys/crypto; \
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for h in rijndael/rijndael.h; do \
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ln -fs ../../../sys/crypto/$$h \
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${DESTDIR}${INCLUDEDIR}/crypto; \
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done
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cd ${.CURDIR}/../sys/opencrypto; \
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for h in *.h; do \
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ln -fs ../../../sys/opencrypto/$$h \
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${DESTDIR}${INCLUDEDIR}/crypto; \
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done
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cd ${.CURDIR}/../sys/${MACHINE}/include; \
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for h in *.h; do \
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ln -fs ../../../sys/${MACHINE}/include/$$h \
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${DESTDIR}${INCLUDEDIR}/machine; \
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done
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.if exists(${.CURDIR}/../sys/${MACHINE}/include/pc)
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cd ${.CURDIR}/../sys/${MACHINE}/include/pc; \
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for h in *.h; do \
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ln -fs ../../../../sys/${MACHINE}/include/pc/$$h \
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${DESTDIR}${INCLUDEDIR}/machine/pc; \
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done
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.endif
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.if defined(_MARCH)
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${INSTALL} -d -o ${BINOWN} -g ${BINGRP} -m 755 \
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${DESTDIR}${INCLUDEDIR}/${_MARCH}; \
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cd ${.CURDIR}/../sys/${_MARCH}/include; \
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for h in *.h; do \
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ln -fs ../../../sys/${_MARCH}/include/$$h \
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${DESTDIR}${INCLUDEDIR}/${_MARCH}; \
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done
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.if exists(${.CURDIR}/../sys/${_MARCH}/include/pc)
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${INSTALL} -d -o ${BINOWN} -g ${BINGRP} -m 755 \
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${DESTDIR}${INCLUDEDIR}/${_MARCH}/pc; \
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cd ${.CURDIR}/../sys/${_MARCH}/include/pc; \
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for h in *.h; do \
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ln -fs ../../../../sys/${_MARCH}/include/pc/$$h \
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${DESTDIR}${INCLUDEDIR}/${_MARCH}/pc; \
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done
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.endif
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.endif
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cd ${.CURDIR}/../sys/fs/cd9660; \
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for h in *.h; do \
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ln -fs ../../../../sys/fs/cd9660/$$h \
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${DESTDIR}${INCLUDEDIR}/isofs/cd9660; \
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done
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cd ${.CURDIR}/../sys/rpc; \
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for h in types.h; do \
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ln -fs ../../../sys/rpc/$$h \
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${DESTDIR}${INCLUDEDIR}/rpc; \
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done
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