test/tls/: tests for thread local storage functionality

Signed-off-by: Austin Foxley <austinf@cetoncorp.com>

1 files changed, 79 insertions, 0 deletions

diff --git a/test/tls/tst-tls7.c b/test/tls/tst-tls7.c
new file mode 100644
index 000000000..41da2708d
--- /dev/null
+++ b/test/tls/tst-tls7.c
@@ -0,0 +1,79 @@
+#include <dlfcn.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+#include <tls.h>
+#include <link.h>
+#ifdef __UCLIBC__
+#include "dl-elf.h"
+#include "dl-hash.h"
+#endif
+
+
+#define TEST_FUNCTION do_test ()
+static int
+do_test (void)
+{
+#ifdef USE_TLS
+  static const char modname[] = "tst-tlsmod3.so";
+  int result = 0;
+  int (*fp) (void);
+  void *h;
+  int i;
+  int modid = -1;
+
+  for (i = 0; i < 10; ++i)
+    {
+      h = dlopen (modname, RTLD_LAZY);
+      if (h == NULL)
+	{
+	  printf ("cannot open '%s': %s\n", modname, dlerror ());
+	  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 link_map *)((struct dyn_elf *)h)->dyn)->l_tls_modid;
+      else if (((struct link_map *)((struct dyn_elf *)h)->dyn)->l_tls_modid
+        != (size_t) modid)
+	{
+	  printf ("round %d: modid now %zu, initially %d\n",
+		  i,
+		  ((struct link_map *)((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)
+	{
+	  printf ("cannot get symbol 'in_dso2': %s\n", dlerror ());
+	  exit (1);
+	}
+
+      result |= fp ();
+
+      dlclose (h);
+    }
+
+  return result;
+#else
+  return 0;
+#endif
+}
+
+
+#include "../test-skeleton.c"