This linuxthreads patch was created based on the following nptl patch.

http://sourceware.org/git/?p=glibc.git;a=commitdiff;h=3add8e1353d62d77fdd9b4ca363cdfe7006b0efb

--- a/linuxthreads/Makefile	2005-02-16 20:26:38.000000000 +0900
+++ b/linuxthreads/Makefile	2014-11-12 18:47:29.238567100 +0900
@@ -97,13 +97,21 @@
 generated-dirs := $(firstword $(subst /, , $(multidir)))
 crti-objs += $(multidir)/crti.o
 crtn-objs += $(multidir)/crtn.o
+# Conditionals on the existence of a sysdeps version of crti.S are
+# temporary until all targets either have such a file or have been
+# removed, after which the old approach of postprocessing compiler
+# output will be removed.
+ifeq (,$(wildcard $(sysdirs:%=%/crti.S)))
 omit-deps += $(multidir)/crti $(multidir)/crtn
 endif
+endif
 extra-objs += $(crti-objs) $(crtn-objs)
+ifeq (,$(wildcard $(sysdirs:%=%/crti.S)))
 omit-deps += crti crtn
 
 CFLAGS-pt-initfini.s = -g0 -fPIC -fno-inline-functions $(fno-unit-at-a-time)
 endif
+endif
 
 librt-tests = ex10 ex11 tst-clock1
 tests = ex1 ex2 ex3 ex4 ex5 ex6 ex7 ex8 ex9 $(librt-tests) ex12 ex13 joinrace \
@@ -268,11 +276,20 @@
 endif
 
 ifeq ($(build-shared),yes)
+ifeq (,$(wildcard $(sysdirs:%=%/crti.S)))
 vpath pt-initfini.c $(full_config_sysdirs)
 
 $(objpfx)pt-initfini.s: pt-initfini.c
 	$(compile.c) -S $(CFLAGS-pt-initfini.s) -finhibit-size-directive \
 		$(patsubst -f%,-fno-%,$(exceptions)) -o $@
+endif
+
+ifneq (,$(wildcard $(sysdirs:%=%/crti.S)))
+
+$(objpfx)crti.o: $(objpfx)pt-crti.o
+	ln -f $< $@
+
+else
 
 # We only have one kind of startup code files.  Static binaries and
 # shared libraries are build using the PIC version.
@@ -295,6 +312,8 @@
 $(objpfx)crtn.o: $(objpfx)crtn.S $(objpfx)defs.h
 	$(compile.S) -g0 $(ASFLAGS-.os) -o $@
 
+endif
+
 ifneq ($(multidir),.)
 $(objpfx)$(multidir):
 	@mkdir -p $(objpfx)$(multidir)
--- /dev/null	2014-10-25 23:44:22.000000000 +0900
+++ b/linuxthreads/pt-crti.S	2014-10-25 23:43:18.445954300 +0900
@@ -0,0 +1,44 @@
+/* Special .init and .fini section support for libpthread.
+   Copyright (C) 2012 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   In addition to the permissions in the GNU Lesser General Public
+   License, the Free Software Foundation gives you unlimited
+   permission to link the compiled version of this file with other
+   programs, and to distribute those programs without any restriction
+   coming from the use of this file. (The GNU Lesser General Public
+   License restrictions do apply in other respects; for example, they
+   cover modification of the file, and distribution when not linked
+   into another program.)
+
+   Note that people who make modified versions of this file are not
+   obligated to grant this special exception for their modified
+   versions; it is their choice whether to do so. The GNU Lesser
+   General Public License gives permission to release a modified
+   version without this exception; this exception also makes it
+   possible to release a modified version which carries forward this
+   exception.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+/* Arrange for __pthread_initialize_minimal_internal to be called at
+   libpthread startup, instead of conditionally calling
+   __gmon_start__.  */
+
+#define PREINIT_FUNCTION __pthread_initialize_minimal
+#define PREINIT_FUNCTION_WEAK 0
+
+#include <crti.S>