pthread: Move most mutex tests from nptl to sysdeps/pthread

So they can be checked with htl too.

XFAIL tst-mutex4, for which support is still missing in htl.

nptl/Makefile

@@ -235,8 +235,7 @@ CFLAGS-tst-minstack-throw.o = -std=gnu++11
 LDLIBS-tst-minstack-throw = -lstdc++
 
 tests = tst-attr1 tst-attr2 tst-attr3 tst-default-attr \
-	tst-mutex1 tst-mutex2 tst-mutex3 tst-mutex4 tst-mutex5 tst-mutex6 \
+	tst-mutex5 tst-mutex7 tst-mutex9 tst-mutex11 tst-mutex5a tst-mutex7a \
-	tst-mutex7 tst-mutex9 tst-mutex10 tst-mutex11 tst-mutex5a tst-mutex7a \
 	tst-mutex7robust tst-mutexpi1 tst-mutexpi2 tst-mutexpi3 tst-mutexpi4 \
 	tst-mutexpi5 tst-mutexpi5a tst-mutexpi6 tst-mutexpi7 tst-mutexpi7a \
 	tst-mutexpi9 \

sysdeps/mach/hurd/i386/Makefile

@@ -101,6 +101,11 @@ ifeq ($(subdir),mach)
 test-xfail-check-abi-libmachuser = yes
 endif
 
+# For bug 25521
+ifeq ($(subdir),htl)
+test-xfail-tst-mutex4 = yes
+endif
+
 ifeq ($(subdir),elf)
 # We do use nested functions involving creation of trampolines, notably for
 # callbacks whose parameters don't permit to get the context parameters.

sysdeps/pthread/Makefile

@@ -44,6 +44,7 @@ tests += tst-cnd-basic tst-mtx-trylock tst-cnd-broadcast \
 	 tst-mtx-recursive tst-tss-basic tst-call-once tst-mtx-timedlock \
 	 tst-basic1 tst-basic2 tst-basic3 tst-basic4 tst-basic5 tst-basic6 \
 	 tst-basic7 \
-	 tst-spin1 tst-spin2 tst-spin3 tst-spin4 \
+	 tst-mutex1 tst-mutex2 tst-mutex3 tst-mutex4 tst-mutex6 tst-mutex10 \
+	 tst-spin1 tst-spin2 tst-spin3 tst-spin4
 
 endif