Do not override objects in libc.a in other static libraries [BZ #20452]

With this change, we no longer add sysdep.o and similar objects which
are present in libc.a to other static libraries.

2016-08-14  Florian Weimer  <fweimer@redhat.com>

	[BZ #20452]
	Avoid additional copies of objects in libc.a in static libraries.
	* sysdeps/ia64/nptl/Makefile (libpthread-shared-only-routines):
	Add ptw-sysdep, ptw-sigblock, ptw-sigprocmask.
	* sysdeps/mips/Makefile (librt-shared-only-routines): Add
	rt-sysdep.
	* sysdeps/mips/nptl/Makefile (libpthread-shared-only-routines):
	Add nptl-sysdep.
	* sysdeps/s390/nptl/Makefile (libpthread-shared-only-routines):
	Add ptw-sysdep.
	* sysdeps/unix/alpha/Makefile (librt-shared-only-routines): Add
	rt-sysdep.
	* sysdeps/unix/sysv/linux/alpha/Makefile
	(libpthread-shared-only-routines): Add ptw-sysdep,
	ptw-sigprocmask, ptw-rt_sigaction.
	* sysdeps/unix/sysv/linux/ia64/Makefile
	(librt-shared-only-routines): Add rt-sysdep.
	* sysdeps/unix/sysv/linux/i386/Makefile
	(libpthread-shared-only-routines): Add libc-do-syscall.
	* sysdeps/unix/sysv/linux/microblaze/Makefile
	(libpthread-shared-only-routines): Add sysdep.
	* sysdeps/unix/sysv/linux/powerpc/Makefile
	(librt-shared-only-routines): Add rt-sysdep.
	(libpthread-shared-only-routines): Add sysdep.
	* sysdeps/unix/sysv/linux/s390/Makefile
	(librt-shared-only-routines): Add rt-sysdep.
	* sysdeps/unix/sysv/linux/sparc/Makefile
	(librt-shared-only-routines): Add rt-sysdep.
	(libpthread-shared-only-routines): Add sysdep.
	* sysdeps/unix/sysv/linux/tile/Makefile
	(libpthread-shared-only-routines): Likewise.

diff --git a/sysdeps/ia64/nptl/Makefile b/sysdeps/ia64/nptl/Makefile
index 48f1327..1e6be8e 100644
--- a/sysdeps/ia64/nptl/Makefile
+++ b/sysdeps/ia64/nptl/Makefile
@@ -21,4 +21,5 @@ endif
 
 ifeq ($(subdir),nptl)
 libpthread-routines += ptw-sysdep ptw-sigblock ptw-sigprocmask
+libpthread-shared-only-routines += ptw-sysdep ptw-sigblock ptw-sigprocmask
 endif
diff --git a/sysdeps/mips/Makefile b/sysdeps/mips/Makefile
index 3d35523..7c1d779 100644
--- a/sysdeps/mips/Makefile
+++ b/sysdeps/mips/Makefile
@@ -9,6 +9,7 @@ endif
 
 ifeq ($(subdir),rt)
 librt-sysdep_routines += rt-sysdep
+librt-shared-only-routines += rt-sysdep
 endif
 
 ifeq ($(subdir),debug)
diff --git a/sysdeps/mips/nptl/Makefile b/sysdeps/mips/nptl/Makefile
index 117744f..dda154d 100644
--- a/sysdeps/mips/nptl/Makefile
+++ b/sysdeps/mips/nptl/Makefile
@@ -21,4 +21,5 @@ endif
 
 ifeq ($(subdir),nptl)
 libpthread-sysdep_routines += nptl-sysdep
+libpthread-shared-only-routines += nptl-sysdep
 endif
diff --git a/sysdeps/s390/nptl/Makefile b/sysdeps/s390/nptl/Makefile
index 5734b98..3a391c8 100644
--- a/sysdeps/s390/nptl/Makefile
+++ b/sysdeps/s390/nptl/Makefile
@@ -21,4 +21,5 @@ endif
 
 ifeq ($(subdir),nptl)
 libpthread-routines += ptw-sysdep
+libpthread-shared-only-routines += ptw-sysdep
 endif
diff --git a/sysdeps/unix/alpha/Makefile b/sysdeps/unix/alpha/Makefile
index 441aa02..0660847 100644
--- a/sysdeps/unix/alpha/Makefile
+++ b/sysdeps/unix/alpha/Makefile
@@ -1,3 +1,4 @@
 ifeq ($(subdir),rt)
 librt-sysdep_routines += rt-sysdep
+librt-shared-only-routines += rt-sysdep
 endif
diff --git a/sysdeps/unix/sysv/linux/#Makefile# b/sysdeps/unix/sysv/linux/#Makefile#
new file mode 100644
index 0000000..8a76888
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/#Makefile#
@@ -0,0 +1,203 @@
+ifeq ($(subdir),csu)
+sysdep_routines += errno-loc
+endif
+
+ifeq ($(subdir),assert)
+CFLAGS-assert.c += -DFATAL_PREPARE_INCLUDE='<fatal-prepare.h>'
+CFLAGS-assert-perr.c += -DFATAL_PREPARE_INCLUDE='<fatal-prepare.h>'
+endif
+
+ifeq ($(subdir),malloc)
+CFLAGS-malloc.c += -DMORECORE_CLEARS=2
+endif
+
+ifeq ($(subdir),misc)
+include $(firstword $(wildcard $(sysdirs:=/sysctl.mk)))
+
+sysdep_routines += clone llseek umount umount2 readahead \
+		   setfsuid setfsgid epoll_pwait signalfd \
+		   eventfd eventfd_read eventfd_write prlimit \
+		   personality
+
+CFLAGS-gethostid.c = -fexceptions
+CFLAGS-tst-writev.c += "-DARTIFICIAL_LIMIT=0x80000000-__getpagesize()"
+
+# Note that bits/mman-linux.h is listed here though the file lives in the
+# top-level bits/ subdirectory instead of here in sysdeps/.../linux/bits/.
+# That is just so that other (non-Linux) configurations for whom the
+# bits/mman-linux.h definitions work well do not have to duplicate the
+# contents of the file.  The file must still be listed in sysdep_headers
+# here and in any non-Linux configuration that uses it; other
+# configurations will not install the file.
+sysdep_headers += sys/mount.h sys/acct.h sys/sysctl.h \
+		  sys/klog.h \
+		  sys/user.h sys/prctl.h \
+		  sys/kd.h sys/soundcard.h sys/vt.h \
+		  sys/quota.h sys/fsuid.h \
+		  scsi/sg.h scsi/scsi.h scsi/scsi_ioctl.h sys/pci.h \
+		  sys/ultrasound.h sys/raw.h sys/personality.h sys/epoll.h \
+		  bits/a.out.h sys/inotify.h sys/signalfd.h sys/eventfd.h \
+		  sys/timerfd.h sys/fanotify.h bits/eventfd.h bits/inotify.h \
+		  bits/signalfd.h bits/timerfd.h bits/epoll.h \
+		  bits/socket_type.h bits/syscall.h bits/sysctl.h \
+		  bits/mman-linux.h
+
+tests += tst-clone tst-clone2 tst-fanotify tst-personality
+
+# Generate the list of SYS_* macros for the system calls (__NR_* macros).
+
+# If there is more than one syscall list for different architecture
+# variants, the CPU/Makefile defines abi-variants to be a list of names
+# for those variants (e.g. 32 64), and, for each variant, defines
+# abi-$(variant)-options to be compiler options to cause <asm/unistd.h>
+# to define the desired list of syscalls and abi-$(variant)-condition to
+# be the condition for those options to use in a C #if condition.
+# abi-includes may be defined to a list of headers to include
+# in the generated header, if the default does not suffice.
+#
+# The generated header is compiled with `-ffreestanding' to avoid any
+# circular dependencies against the installed implementation headers.
+# Such a dependency would require the implementation header to be
+# installed before the generated header could be built (See bug 15711).
+# In current practice the generated header dependencies do not include
+# any of the implementation headers removed by the use of `-ffreestanding'.
+
+$(objpfx)bits/syscall%h $(objpfx)bits/syscall%d: ../sysdeps/unix/sysv/linux/sys/syscall.h
+	$(make-target-directory)
+	{ \
+	 echo '/* Generated at libc build time from kernel syscall list.  */';\
+	 echo ''; \
+	 echo '#ifndef _SYSCALL_H'; \
+	 echo '# error "Never use <bits/syscall.h> directly; include <sys/syscall.h> instead."'; \
+	 echo '#endif'; \
+	 echo ''; \
+	 $(foreach h,$(abi-includes), echo '#include <$(h)>';) \
+	 echo ''; \
+	 $(if $(abi-variants), \
+	 $(foreach v,$(abi-variants),\
+	 $(CC) -ffreestanding -E -MD -MP -MF $(@:.h=.d)-t$(v) -MT '$(@:.d=.h) $(@:.h=.d)' \
+	       -x c $(sysincludes) $< $(abi-$(v)-options) \
+	       -D_LIBC -dM | \
+	 sed -n 's@^#define __NR_\([^ ]*\) .*$$@#define SYS_\1 __NR_\1@p' | \
+	 LC_ALL=C sort > $(@:.d=.h).new$(v); \
+	 $(if $(abi-$(v)-condition),\
+	 echo '#if $(abi-$(v)-condition)';) \
+	 cat $(@:.d=.h).new$(v); \
+	 $(if $(abi-$(v)-condition),echo '#endif';) \
+	 rm -f $(@:.d=.h).new$(v); \
+	 ), \
+	 $(CC) -ffreestanding -E -MD -MP -MF $(@:.h=.d)-t$(v) -MT '$(@:.d=.h) $(@:.h=.d)' \
+	       -x c $(sysincludes) $< \
+	       -D_LIBC -dM | \
+	 sed -n 's@^#define __NR_\([^ ]*\) .*$$@#define SYS_\1 __NR_\1@p' | \
+	 LC_ALL=C sort;) \
+	} > $(@:.d=.h).new
+	mv -f $(@:.d=.h).new $(@:.d=.h)
+ifdef abi-variants
+ifneq (,$(objpfx))
+	sed $(sed-remove-objpfx) \
+	 $(foreach v,$(abi-variants),$(@:.h=.d)-t$(v)) > $(@:.h=.d)-t3
+else
+	cat $(foreach v,$(abi-variants),$(@:.h=.d)-t$(v)) \
+	 > $(@:.h=.d)-t3
+endif
+	rm -f $(foreach v,$(abi-variants),$(@:.h=.d)-t$(v))
+	mv -f $(@:.h=.d)-t3 $(@:.h=.d)
+else
+	mv -f $(@:.h=.d)-t $(@:.h=.d)
+endif
+
+ifndef no_deps
+# Get the generated list of dependencies (probably /usr/include/asm/unistd.h).
+-include $(objpfx)bits/syscall.d
+endif
+generated += bits/syscall.h bits/syscall.d
+endif
+
+ifeq ($(subdir),time)
+sysdep_headers += sys/timex.h bits/timex.h
+
+sysdep_routines += ntp_gettime ntp_gettimex
+endif
+
+ifeq ($(subdir),socket)
+sysdep_headers += net/if_ppp.h net/ppp-comp.h \
+		  net/ppp_defs.h net/if_arp.h net/route.h net/ethernet.h \
+		  net/if_slip.h net/if_packet.h net/if_shaper.h
+sysdep_routines += cmsg_nxthdr
+CFLAGS-recvmmsg.c = -fexceptions -fasynchronous-unwind-tables
+CFLAGS-sendmmsg.c = -fexceptions -fasynchronous-unwind-tables
+endif
+
+ifeq ($(subdir),sunrpc)
+sysdep_headers += nfs/nfs.h
+endif
+
+ifeq ($(subdir),termios)
+sysdep_headers += termio.h
+endif
+
+ifeq ($(subdir),posix)
+sysdep_headers += bits/initspin.h
+
+sysdep_routines += sched_getcpu
+
+tests += tst-affinity tst-affinity-pid
+
+CFLAGS-fork.c = $(libio-mtsafe)
+CFLAGS-getpid.o = -fomit-frame-pointer
+CFLAGS-getpid.os = -fomit-frame-pointer
+endif
+
+ifeq ($(subdir),inet)
+sysdep_headers += netinet/if_fddi.h netinet/if_tr.h \
+		  netipx/ipx.h netash/ash.h netax25/ax25.h netatalk/at.h \
+		  netrom/netrom.h netpacket/packet.h netrose/rose.h \
+		  neteconet/ec.h netiucv/iucv.h
+sysdep_routines += netlink_assert_response
+endif
+
+# Don't compile the ctype glue code, since there is no old non-GNU C library.
+inhibit-glue = yes
+
+ifeq ($(subdir),dirent)
+sysdep_r
+outines += getdirentries getdirentries64
+endif
+
+ifeq ($(subdir),nis)
+CFLAGS-ypclnt.c = -DUSE_BINDINGDIR=1
+endif
+
+ifeq ($(subdir),io)
+sysdep_routines += xstatconv internal_statvfs internal_statvfs64 \
+		   sync_file_range fallocate fallocate64
+sysdep_headers += bits/fcntl-linux.h
+endif
+
+ifeq ($(subdir),elf)
+sysdep-rtld-routines += dl-brk dl-sbrk dl-getcwd dl-openat64 dl-opendir \
+			dl-fxstatat64
+
+libof-lddlibc4 = lddlibc4
+
+others += pldd
+install-bin += pldd
+$(objpfx)pldd: $(objpfx)xmalloc.o
+endif
+
+ifeq ($(subdir),rt)
+CFLAGS-mq_send.c += -fexceptions
+CFLAGS-mq_receive.c += -fexceptions
+endif
+
+ifeq ($(subdir),nscd)
+sysdep-CFLAGS += -DHAVE_EPOLL -DHAVE_SENDFILE -DHAVE_INOTIFY -DHAVE_NETLINK
+CFLAGS-gai.c += -DNEED_NETLINK
+endif
+
+ifeq ($(subdir),nptl)
+tests += tst-setgetname tst-align-clone tst-getpid1 \
+	tst-thread-affinity-pthread tst-thread-affinity-pthread2 \
+	tst-thread-affinity-sched
+endif
diff --git a/sysdeps/unix/sysv/linux/.#Makefile b/sysdeps/unix/sysv/linux/.#Makefile
new file mode 120000
index 0000000..015baef
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/.#Makefile
@@ -0,0 +1 @@
+fweimer@oldenburg.str.redhat.com.21509:1469874129
\ No newline at end of file
diff --git a/sysdeps/unix/sysv/linux/alpha/Makefile b/sysdeps/unix/sysv/linux/alpha/Makefile
index c089545..3b523b7 100644
--- a/sysdeps/unix/sysv/linux/alpha/Makefile
+++ b/sysdeps/unix/sysv/linux/alpha/Makefile
@@ -40,4 +40,5 @@ endif   # math
 ifeq ($(subdir),nptl)
 # pull in __syscall_error routine, __sigprocmask, __syscall_rt_sigaction
 libpthread-routines += ptw-sysdep ptw-sigprocmask ptw-rt_sigaction
+libpthread-shared-only-routines += ptw-sysdep ptw-sigprocmask ptw-rt_sigaction
 endif
diff --git a/sysdeps/unix/sysv/linux/i386/Makefile b/sysdeps/unix/sysv/linux/i386/Makefile
index b015ff7..6073a9f 100644
--- a/sysdeps/unix/sysv/linux/i386/Makefile
+++ b/sysdeps/unix/sysv/linux/i386/Makefile
@@ -31,6 +31,7 @@ endif
 # libpthread uses six-argument inline syscalls.
 ifeq ($(subdir),nptl)
 libpthread-sysdep_routines += libc-do-syscall
+libpthread-shared-only-routines += libc-do-syscall
 endif
 
 ifeq ($(subdir),resource)
diff --git a/sysdeps/unix/sysv/linux/ia64/Makefile b/sysdeps/unix/sysv/linux/ia64/Makefile
index 1de62c5..4d6766d 100644
--- a/sysdeps/unix/sysv/linux/ia64/Makefile
+++ b/sysdeps/unix/sysv/linux/ia64/Makefile
@@ -19,6 +19,7 @@ endif
 
 ifeq ($(subdir),rt)
 librt-routines += rt-sysdep
+librt-shared-only-routines += rt-sysdep
 endif
 
 ifeq ($(subdir),nptl)
diff --git a/sysdeps/unix/sysv/linux/microblaze/Makefile b/sysdeps/unix/sysv/linux/microblaze/Makefile
index 44a838f..d178bc6 100644
--- a/sysdeps/unix/sysv/linux/microblaze/Makefile
+++ b/sysdeps/unix/sysv/linux/microblaze/Makefile
@@ -5,4 +5,5 @@ endif
 ifeq ($(subdir),nptl)
 # pull in __syscall_error routine
 libpthread-routines += sysdep
-endif
\ No newline at end of file
+libpthread-shared-only-routines += sysdep
+endif
diff --git a/sysdeps/unix/sysv/linux/powerpc/Makefile b/sysdeps/unix/sysv/linux/powerpc/Makefile
index c89ed9e..2cfb46e 100644
--- a/sysdeps/unix/sysv/linux/powerpc/Makefile
+++ b/sysdeps/unix/sysv/linux/powerpc/Makefile
@@ -8,6 +8,7 @@ abi-64-v2-condition := __WORDSIZE == 64 && _CALL_ELF == 2
 
 ifeq ($(subdir),rt)
 librt-routines += rt-sysdep
+librt-shared-only-routines += rt-sysdep
 endif
 
 ifeq ($(subdir),stdlib)
@@ -34,4 +35,5 @@ ifeq ($(subdir),nptl)
 libpthread-routines += sysdep
 libpthread-sysdep_routines += elision-lock elision-unlock elision-timed \
 			      elision-trylock
+libpthread-shared-only-routines += sysdep
 endif
diff --git a/sysdeps/unix/sysv/linux/s390/Makefile b/sysdeps/unix/sysv/linux/s390/Makefile
index 497ffd5..f8ed013 100644
--- a/sysdeps/unix/sysv/linux/s390/Makefile
+++ b/sysdeps/unix/sysv/linux/s390/Makefile
@@ -6,6 +6,7 @@ abi-64-condition := __WORDSIZE == 64
 
 ifeq ($(subdir),rt)
 librt-routines += rt-sysdep
+librt-shared-only-routines += rt-sysdep
 endif
 
 ifeq ($(subdir),stdlib)
diff --git a/sysdeps/unix/sysv/linux/sparc/Makefile b/sysdeps/unix/sysv/linux/sparc/Makefile
index e67aecf..a67d199 100644
--- a/sysdeps/unix/sysv/linux/sparc/Makefile
+++ b/sysdeps/unix/sysv/linux/sparc/Makefile
@@ -6,6 +6,7 @@ abi-64-condition := __WORDSIZE == 64
 
 ifeq ($(subdir),rt)
 librt-routines += rt-sysdep
+librt-shared-only-routines += rt-sysdep
 endif
 
 ifeq ($(subdir),sysvipc)
@@ -15,4 +16,5 @@ endif
 ifeq ($(subdir),nptl)
 # pull in __syscall_error routine
 libpthread-routines += sysdep
+libpthread-shared-only-routines += sysdep
 endif
diff --git a/sysdeps/unix/sysv/linux/tile/Makefile b/sysdeps/unix/sysv/linux/tile/Makefile
index 1c1cfff..43acea3 100644
--- a/sysdeps/unix/sysv/linux/tile/Makefile
+++ b/sysdeps/unix/sysv/linux/tile/Makefile
@@ -25,4 +25,5 @@ endif
 ifeq ($(subdir),nptl)
 # pull in __syscall_error routine
 libpthread-routines += sysdep
+libpthread-shared-only-routines += sysdep
 endif
