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+# Copyright (C) 1991-2017 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.
+
+# 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, see
+# <http://www.gnu.org/licenses/>.
+
+#
+#	Sub-makefile for string portion of library.
+#
+subdir	:= string
+
+include ../Makeconfig
+
+headers	:= string.h strings.h memory.h endian.h bits/endian.h \
+	   argz.h envz.h byteswap.h bits/byteswap.h bits/byteswap-16.h \
+	   bits/string.h bits/string2.h bits/string3.h \
+	   bits/strings_fortified.h bits/uintn-identity.h
+
+routines	:= strcat strchr strcmp strcoll strcpy strcspn		\
+		   strverscmp strdup strndup				\
+		   strerror _strerror strlen strnlen			\
+		   strncat strncmp strncpy				\
+		   strrchr strpbrk strsignal strspn strstr strtok	\
+		   strtok_r strxfrm memchr memcmp memmove memset	\
+		   mempcpy bcopy bzero ffs ffsll stpcpy stpncpy		\
+		   strcasecmp strncase strcasecmp_l strncase_l		\
+		   memccpy memcpy wordcopy strsep strcasestr		\
+		   swab strfry memfrob memmem rawmemchr strchrnul	\
+		   $(addprefix argz-,append count create ctsep next	\
+				     delete extract insert stringify	\
+				     addsep replace)			\
+		   envz basename					\
+		   strcoll_l strxfrm_l string-inlines memrchr		\
+		   xpg-strerror strerror_l explicit_bzero
+
+strop-tests	:= memchr memcmp memcpy memmove mempcpy memset memccpy	\
+		   stpcpy stpncpy strcat strchr strcmp strcpy strcspn	\
+		   strlen strncmp strncpy strpbrk strrchr strspn memmem	\
+		   strstr strcasestr strnlen strcasecmp strncasecmp	\
+		   strncat rawmemchr strchrnul bcopy bzero memrchr	\
+		   explicit_bzero
+tests		:= tester inl-tester noinl-tester testcopy test-ffs	\
+		   tst-strlen stratcliff tst-svc tst-inlcall		\
+		   bug-strncat1 bug-strspn1 bug-strpbrk1 tst-bswap	\
+		   tst-strtok tst-strxfrm bug-strcoll1 tst-strfry	\
+		   bug-strtok1 $(addprefix test-,$(strop-tests))	\
+		   bug-envz1 tst-strxfrm2 tst-endian tst-svc2		\
+		   tst-strtok_r bug-strcoll2 tst-cmp tst-xbzero-opt	\
+		   test-endian-types
+
+# This test allocates a lot of memory and can run for a long time.
+xtests = tst-strcoll-overflow
+
+ifeq ($(run-built-tests),yes)
+tests-special += $(objpfx)tst-svc-cmp.out
+endif
+
+include ../Rules
+
+CFLAGS-inl-tester.c = -fno-builtin
+CFLAGS-noinl-tester.c = -fno-builtin
+CFLAGS-tst-strlen.c = -fno-builtin
+CFLAGS-stratcliff.c = -fno-builtin
+CFLAGS-test-ffs.c = -fno-builtin
+CFLAGS-tst-inlcall.c = -fno-builtin
+CFLAGS-tst-xbzero-opt.c = -O3
+# BZ 21006: Resolve all functions but at least explicit_bzero at startup.
+# Otherwise the test fails on s390x as the memcpy in prepare_test_buffer is
+# done by loading r4 / r5 with the test_pattern and using store multiple
+# instruction to store r4 / r5 to buf.  If explicit_bzero would be resolved in
+# setup_explicit_clear, r4 / r5 would be stored to stack by _dl_runtime_resolve
+# and the call to memmem in count_test_patterns will find a hit of the
+# test_pattern on the stack.
+LDFLAGS-tst-xbzero-opt = -z now
+
+# Called during TLS initialization.
+CFLAGS-memcpy.c = $(no-stack-protector)
+CFLAGS-wordcopy.c = $(no-stack-protector)
+
+ifeq ($(run-built-tests),yes)
+$(objpfx)tst-svc-cmp.out: tst-svc.expect $(objpfx)tst-svc.out
+	cmp $^ > $@; \
+	$(evaluate-test)
+
+LOCALES := de_DE.UTF-8 en_US.ISO-8859-1 en_US.UTF-8 \
+           tr_TR.ISO-8859-9 tr_TR.UTF-8 cs_CZ.UTF-8 \
+	   da_DK.ISO-8859-1 en_GB.UTF-8
+include ../gen-locales.mk
+
+$(objpfx)test-strcasecmp.out: $(gen-locales)
+$(objpfx)test-strncasecmp.out: $(gen-locales)
+$(objpfx)tst-strxfrm.out: $(gen-locales)
+$(objpfx)tst-strxfrm2.out: $(gen-locales)
+# bug-strcoll2 needs cs_CZ.UTF-8 and da_DK.ISO-8859-1.
+$(objpfx)bug-strcoll2.out: $(gen-locales)
+$(objpfx)tst-strcoll-overflow.out: $(gen-locales)
+
+endif