mirror of
https://sourceware.org/git/glibc.git
synced 2024-12-20 17:51:16 +00:00
3a2c02424d
Whenever getaddrinfo needed network interface information it used the netlink interface to read the information every single time. The problem is that this information can change at any time. The patch implements monitoring of the network interfaces through nscd. If no change is detected the previously read information can be reused (which is the norm). This timestamp information is also made available to other processes using the shared memory segment between nscd and those processes.
167 lines
5.0 KiB
Makefile
167 lines
5.0 KiB
Makefile
ifeq ($(subdir),csu)
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sysdep_routines += errno-loc
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endif
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ifeq ($(subdir),assert)
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CFLAGS-assert.c += -DFATAL_PREPARE_INCLUDE='<fatal-prepare.h>'
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CFLAGS-assert-perr.c += -DFATAL_PREPARE_INCLUDE='<fatal-prepare.h>'
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endif
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ifeq ($(subdir),malloc)
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CFLAGS-malloc.c += -DMORECORE_CLEARS=2
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endif
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ifeq ($(subdir),socket)
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sysdep_routines += internal_accept4 recvmmsg internal_recvmmsg sendmmsg \
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internal_sendmmsg
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endif
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ifeq ($(subdir),misc)
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sysdep_routines += sysctl clone llseek umount umount2 readahead \
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setfsuid setfsgid makedev epoll_pwait signalfd \
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eventfd eventfd_read eventfd_write prlimit
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CFLAGS-gethostid.c = -fexceptions
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CFLAGS-tst-writev.c += "-DARTIFICIAL_LIMIT=0x80000000-__getpagesize()"
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sysdep_headers += sys/mount.h sys/acct.h sys/sysctl.h \
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sys/klog.h sys/kdaemon.h \
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sys/user.h sys/procfs.h sys/prctl.h \
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sys/kd.h sys/soundcard.h sys/vt.h \
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sys/quota.h sys/fsuid.h \
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scsi/sg.h scsi/scsi.h scsi/scsi_ioctl.h sys/pci.h \
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sys/ultrasound.h sys/raw.h sys/personality.h sys/epoll.h \
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bits/a.out.h sys/inotify.h sys/signalfd.h sys/eventfd.h \
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sys/timerfd.h sys/fanotify.h
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install-others += $(inst_includedir)/bits/syscall.h
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tests += tst-clone
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# Generate the list of SYS_* macros for the system calls (__NR_* macros).
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# For bi-arch platforms, the CPU/Makefile defines {32,64}bit-predefine and
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# we generate a file that uses <bits/wordsize.h>.
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$(objpfx)syscall-%.h $(objpfx)syscall-%.d: ../sysdeps/unix/sysv/linux/sys/syscall.h
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$(make-target-directory)
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{ \
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echo '/* Generated at libc build time from kernel syscall list. */';\
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echo ''; \
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echo '#ifndef _SYSCALL_H'; \
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echo '# error "Never use <bits/syscall.h> directly; include <sys/syscall.h> instead."'; \
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echo '#endif'; \
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echo ''; \
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$(CC) -E -MD -MP -MF $(@:.h=.d)-t1 -MT '$(@:.d=.h) $(@:.h=.d)' \
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-x c $(sysincludes) $< $(addprefix -U,$(64bit-predefine)) \
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$(addprefix -D,$(32bit-predefine)) -D_LIBC -dM | \
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sed -n 's@^#define __NR_\([^ ]*\) .*$$@#define SYS_\1 __NR_\1@p' | \
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LC_ALL=C sort > $(@:.d=.h).new32; \
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$(CC) -E -MD -MP -MF $(@:.h=.d)-t2 -MT '$(@:.d=.h) $(@:.h=.d)' \
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-x c $(sysincludes) $< $(addprefix -U,$(32bit-predefine)) \
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$(addprefix -D,$(64bit-predefine)) -D_LIBC -dM | \
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sed -n 's@^#define __NR_\([^ ]*\) .*$$@#define SYS_\1 __NR_\1@p' | \
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LC_ALL=C sort > $(@:.d=.h).new64; \
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if cmp -s $(@:.d=.h).new32 $(@:.d=.h).new64; then \
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cat $(@:.d=.h).new32; \
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else \
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echo '#include <bits/wordsize.h>'; \
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echo ''; \
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LC_ALL=C comm -12 $(@:.d=.h).new32 $(@:.d=.h).new64; \
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echo '#if __WORDSIZE == 64'; \
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LC_ALL=C comm -13 $(@:.d=.h).new32 $(@:.d=.h).new64; \
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echo '#else'; \
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LC_ALL=C comm -23 $(@:.d=.h).new32 $(@:.d=.h).new64; \
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echo '#endif'; \
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fi; \
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rm -f $(@:.d=.h).new32 $(@:.d=.h).new64; \
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} > $(@:.d=.h).new
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mv -f $(@:.d=.h).new $(@:.d=.h)
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ifneq (,$(objpfx))
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sed $(sed-remove-objpfx) $(@:.h=.d)-t1 $(@:.h=.d)-t2 > $(@:.h=.d)-t3
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else
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cat $(@:.h=.d)-t1 $(@:.h=.d)-t2 > $(@:.h=.d)-t3
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endif
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rm -f $(@:.h=.d)-t1 $(@:.h=.d)-t2
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mv -f $(@:.h=.d)-t3 $(@:.h=.d)
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$(inst_includedir)/bits/syscall.h: $(objpfx)syscall-list.h $(+force)
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$(make-target-directory)
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if test -r $@ && cmp -s $< $@; \
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then echo 'bits/syscall.h unchanged'; \
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else $(INSTALL_DATA) $< $@; fi
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ifndef no_deps
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# Get the generated list of dependencies (probably /usr/include/asm/unistd.h).
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-include $(objpfx)syscall-list.d
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endif
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generated += syscall-list.h syscall-list.d
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endif
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ifeq ($(subdir),time)
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sysdep_headers += sys/timex.h bits/timex.h
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sysdep_routines += ntp_gettime ntp_gettimex
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endif
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ifeq ($(subdir),socket)
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sysdep_headers += net/if_ppp.h net/ppp-comp.h \
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net/ppp_defs.h net/if_arp.h net/route.h net/ethernet.h \
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net/if_slip.h net/if_packet.h net/if_shaper.h
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sysdep_routines += cmsg_nxthdr sa_len
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endif
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ifeq ($(subdir),sunrpc)
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sysdep_headers += nfs/nfs.h
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endif
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ifeq ($(subdir),termios)
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sysdep_headers += termio.h
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endif
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ifeq ($(subdir),posix)
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sysdep_headers += bits/initspin.h
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sysdep_routines += exit-thread sched_getcpu
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tests += tst-getcpu
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endif
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ifeq ($(subdir),inet)
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sysdep_headers += netinet/if_fddi.h netinet/if_tr.h \
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netipx/ipx.h netash/ash.h netax25/ax25.h netatalk/at.h \
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netrom/netrom.h netpacket/packet.h netrose/rose.h \
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neteconet/ec.h netiucv/iucv.h
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endif
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# Don't compile the ctype glue code, since there is no old non-GNU C library.
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inhibit-glue = yes
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ifeq ($(subdir),dirent)
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sysdep_routines += getdirentries getdirentries64
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endif
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ifeq ($(subdir),nis)
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CFLAGS-ypclnt.c = -DUSE_BINDINGDIR=1
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endif
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ifeq ($(subdir),io)
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sysdep_routines += xstatconv internal_statvfs internal_statvfs64 \
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sync_file_range open_2 open64_2 fallocate fallocate64
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endif
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ifeq ($(subdir),elf)
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sysdep-rtld-routines += dl-brk dl-sbrk dl-getcwd dl-openat64 dl-opendir \
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dl-fxstatat64
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CPPFLAGS-lddlibc4 += -DNOT_IN_libc
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endif
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ifeq ($(subdir),rt)
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CFLAGS-mq_send.c += -fexceptions
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CFLAGS-mq_receive.c += -fexceptions
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endif
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ifeq ($(subdir),nscd)
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sysdep-CFLAGS += -DHAVE_EPOLL -DHAVE_SENDFILE -DHAVE_INOTIFY -DHAVE_NETLINK
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CFLAGS-gai.c += -DNEED_NETLINK
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endif
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