test/tls/: tests for thread local storage functionality

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

1 files changed, 66 insertions, 0 deletions

diff --git a/test/tls/tst-tls14.c b/test/tls/tst-tls14.c
new file mode 100644
index 000000000..428fd5293
--- /dev/null
+++ b/test/tls/tst-tls14.c
@@ -0,0 +1,66 @@
+/* Check alignment of TLS variable.  */
+#include <dlfcn.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+#include <tls.h>
+
+#if USE_TLS && HAVE___THREAD
+
+#define AL 4096
+struct foo
+{
+  int i;
+} __attribute ((aligned (AL)));
+
+static __thread struct foo f;
+static struct foo g;
+
+
+extern int in_dso1 (void);
+
+
+static int
+do_test (void)
+{
+  int result = 0;
+
+  int fail = (((uintptr_t) &f) & (AL - 1)) != 0;
+  printf ("&f = %p %s\n", &f, fail ? "FAIL" : "OK");
+  result |= fail;
+
+  fail = (((uintptr_t) &g) & (AL - 1)) != 0;
+  printf ("&g = %p %s\n", &g, fail ? "FAIL" : "OK");
+  result |= fail;
+
+  result |= in_dso1 ();
+
+  void *h = dlopen ("tst-tlsmod14b.so", RTLD_LAZY);
+  if (h == NULL)
+    {
+      printf ("cannot open tst-tlsmod14b.so: %m\n");
+      exit (1);
+    }
+
+  int (*fp) (void) = (int (*) (void)) dlsym (h, "in_dso2");
+  if (fp == NULL)
+    {
+      puts ("cannot find in_dso2");
+      exit (1);
+    }
+
+  result |= fp ();
+
+  return result;
+}
+
+#define TEST_FUNCTION do_test ()
+
+#else
+
+#define TEST_FUNCTION 0
+
+#endif
+
+#include "../test-skeleton.c"