tls: make tls tests great again

* TLS tests were "empty" because nothing was setting the following variables:

  * USE_TLS
  * HAVE___THREAD
  * HAVE_TLS_MODEL_ATTRIBUTE

All toolchains supported by uClibc-ng today do support both NPTL threads and TLS.
All ports also define HAVE_TLS_MODEL_ATTRIBUTE except alpha.

* 3 tests (tst-tls6 / tst-tls7 / tst-tls8) were peeking into internal/private
data structures from libc, which is not possible anymore since libc and
tests are now split into 2 git repositories.

This commit fixes those 2 issues so that TLS tests can be run again.

Signed-off-by: Yann Sionneau <yann@sionneau.net>

4 files changed, 6 insertions, 145 deletions

diff --git a/test/tls/Makefile.in b/test/tls/Makefile.in
index 6a6a50e..348fc1c 100644
--- a/test/tls/Makefile.in
+++ b/test/tls/Makefile.in
@@ -1,6 +1,12 @@
 # uClibc-ng TLS tests
 # Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball.
 
+CFLAGS += -DUSE_TLS=1 -DHAVE___THREAD=1 -I.
+
+ifneq ($(ARCH),alpha)
+CFLAGS += -DHAVE_TLS_MODEL_ATTRIBUTE=1
+endif
+
 TESTS := tst-tls1 tst-tls2 tst-tls3 tst-tls4 tst-tls5 tst-tls6 tst-tls7	\
 	tst-tls8 tst-tls9 tst-tls10 tst-tls11 tst-tls12 tst-tls13	\
 	tst-tls14 tst-tls15 tst-tls16 tst-tls17 tst-tls18 tst-tls-at-ctor \
diff --git a/test/tls/tst-tls6.c b/test/tls/tst-tls6.c
index 7cc8f6b..b9a5609 100644
--- a/test/tls/tst-tls6.c
+++ b/test/tls/tst-tls6.c
@@ -26,31 +26,6 @@ do_test (void)
 	  exit (1);
 	}
 
-      /* Dirty test code here: we peek into a private data structure.
-	 We make sure that the module gets assigned the same ID every
-	 time.  The value of the first round is used.  */
-#ifdef __UCLIBC__
-      if (modid == -1)
-	modid = ((struct dyn_elf *) h)->dyn->l_tls_modid;
-      else if (((struct dyn_elf *)h)->dyn->l_tls_modid != (size_t) modid)
-	{
-	  printf ("round %d: modid now %zu, initially %d\n",
-		  i,
-		  ((struct dyn_elf *)h)->dyn->l_tls_modid,
-		  modid);
-	  result = 1;
-	}
-#else
-      if (modid == -1)
-	modid = ((struct link_map *) h)->l_tls_modid;
-      else if (((struct link_map *) h)->l_tls_modid != modid)
-	{
-	  printf ("round %d: modid now %zd, initially %d\n",
-		  i, ((struct link_map *) h)->l_tls_modid, modid);
-	  result = 1;
-	}
-#endif
-
       foop = dlsym (h, "foo");
       if (foop == NULL)
 	{
diff --git a/test/tls/tst-tls7.c b/test/tls/tst-tls7.c
index b8bb71d..b0a6d37 100644
--- a/test/tls/tst-tls7.c
+++ b/test/tls/tst-tls7.c
@@ -24,31 +24,6 @@ do_test (void)
 	  exit (1);
 	}
 
-      /* Dirty test code here: we peek into a private data structure.
-	 We make sure that the module gets assigned the same ID every
-	 time.  The value of the first round is used.  */
-#ifdef __UCLIBC__
-      if (modid == -1)
-	modid = ((struct dyn_elf *) h)->dyn->l_tls_modid;
-      else if (((struct dyn_elf *)h)->dyn->l_tls_modid != (size_t) modid)
-	{
-	  printf ("round %d: modid now %zu, initially %d\n",
-		  i,
-		  ((struct dyn_elf *)h)->dyn->l_tls_modid,
-		  modid);
-	  result = 1;
-	}
-#else
-      if (modid == -1)
-	modid = ((struct link_map *) h)->l_tls_modid;
-      else if (((struct link_map *) h)->l_tls_modid != (size_t) modid)
-	{
-	  printf ("round %d: modid now %zu, initially %d\n",
-		  i, ((struct link_map *) h)->l_tls_modid, modid);
-	  result = 1;
-	}
-#endif
-
       fp = dlsym (h, "in_dso2");
       if (fp == NULL)
 	{
diff --git a/test/tls/tst-tls8.c b/test/tls/tst-tls8.c
index 4635304..a723cab 100644
--- a/test/tls/tst-tls8.c
+++ b/test/tls/tst-tls8.c
@@ -29,31 +29,6 @@ do_test (void)
 	  exit (1);
 	}
 
-      /* Dirty test code here: we peek into a private data structure.
-	 We make sure that the module gets assigned the same ID every
-	 time.  The value of the first round is used.  */
-#ifdef __UCLIBC__
-      if (modid1 == (size_t) -1)
-	modid1 = ((struct dyn_elf *) h1)->dyn->l_tls_modid;
-      else if (((struct dyn_elf *)h1)->dyn->l_tls_modid != (size_t) modid1)
-	{
-	  printf ("round %d: modid now %zd, initially %zd\n",
-		  i,
-		  ((struct dyn_elf *)h1)->dyn->l_tls_modid,
-		  modid1);
-	  result = 1;
-	}
-#else
-      if (modid1 == (size_t) -1)
-	modid1 = ((struct link_map *) h1)->l_tls_modid;
-      else if (((struct link_map *) h1)->l_tls_modid != modid1)
-	{
-	  printf ("round %d: modid now %zd, initially %zd\n",
-		  i, ((struct link_map *) h1)->l_tls_modid, modid1);
-	  result = 1;
-	}
-#endif
-
       fp1 = dlsym (h1, "in_dso2");
       if (fp1 == NULL)
 	{
@@ -72,32 +47,6 @@ do_test (void)
 	  exit (1);
 	}
 
-      /* Dirty test code here: we peek into a private data structure.
-	 We make sure that the module gets assigned the same ID every
-	 time.  The value of the first round is used.  */
-#ifdef __UCLIBC__
-      if (modid2 == (size_t) -1)
-	modid2 = ((struct dyn_elf *)h2)->dyn->l_tls_modid;
-      else if (((struct dyn_elf *)h2)->dyn->l_tls_modid
-        != (size_t) modid2)
-	{
-	  printf ("round %d: modid now %zd, initially %zd\n",
-		  i,
-		  ((struct dyn_elf *)h2)->dyn->l_tls_modid,
-		  modid2);
-	  result = 1;
-	}
-#else
-      if (modid2 == (size_t) -1)
-	modid2 = ((struct link_map *) h2)->l_tls_modid;
-      else if (((struct link_map *) h2)->l_tls_modid != modid2)
-	{
-	  printf ("round %d: modid now %zd, initially %zd\n",
-		  i, ((struct link_map *) h2)->l_tls_modid, modid2);
-	  result = 1;
-	}
-#endif
-
       bazp = dlsym (h2, "baz");
       if (bazp == NULL)
 	{
@@ -127,28 +76,6 @@ do_test (void)
 	  exit (1);
 	}
 
-      /* Dirty test code here: we peek into a private data structure.
-	 We make sure that the module gets assigned the same ID every
-	 time.  The value of the first round is used.  */
-#ifdef __UCLIBC__
-      if (((struct dyn_elf *)h1)->dyn->l_tls_modid
-        != modid1)
-	{
-	  printf ("round %d: modid now %zd, initially %zd\n",
-		  i,
-		  ((struct dyn_elf *)h1)->dyn->l_tls_modid,
-		  modid1);
-	  result = 1;
-	}
-#else
-      if (((struct link_map *) h1)->l_tls_modid != modid1)
-	{
-	  printf ("round %d: modid now %zd, initially %zd\n",
-		  i, ((struct link_map *) h1)->l_tls_modid, modid1);
-	  result = 1;
-	}
-#endif
-
       fp1 = dlsym (h1, "in_dso2");
       if (fp1 == NULL)
 	{
@@ -167,28 +94,6 @@ do_test (void)
 	  exit (1);
 	}
 
-      /* Dirty test code here: we peek into a private data structure.
-	 We make sure that the module gets assigned the same ID every
-	 time.  The value of the first round is used.  */
-#ifdef __UCLIBC__
-      if (((struct dyn_elf *)h2)->dyn->l_tls_modid
-        != modid2)
-	{
-	  printf ("round %d: modid now %zd, initially %zd\n",
-		  i,
-		  ((struct dyn_elf *)h2)->dyn->l_tls_modid,
-		  modid2);
-	  result = 1;
-	}
-#else
-      if (((struct link_map *) h2)->l_tls_modid != modid2)
-	{
-	  printf ("round %d: modid now %zd, initially %zd\n",
-		  i, ((struct link_map *) h2)->l_tls_modid, modid2);
-	  result = 1;
-	}
-#endif
-
       bazp = dlsym (h2, "baz");
       if (bazp == NULL)
 	{