Prepare for radical source tree reorganization. zack/build-layout-experiment

All top-level files and directories are moved into a temporary storage
directory, REORG.TODO, except for files that will certainly still
exist in their current form at top level when we're done (COPYING,
COPYING.LIB, LICENSES, NEWS, README), all old ChangeLog files (which
are moved to the new directory OldChangeLogs, instead), and the
generated file INSTALL (which is just deleted; in the new order, there
will be no generated files checked into version control).

1 files changed, 85 insertions, 0 deletions

diff --git a/REORG.TODO/elf/tst-tls-dlinfo.c b/REORG.TODO/elf/tst-tls-dlinfo.c
new file mode 100644
index 0000000000..7d2b42e2ab
--- /dev/null
+++ b/REORG.TODO/elf/tst-tls-dlinfo.c
@@ -0,0 +1,85 @@
+#include <dlfcn.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+
+static int
+do_test (void)
+{
+  static const char modname[] = "tst-tlsmod2.so";
+  int result = 0;
+  int *foop;
+  int (*fp) (int, int *);
+  void *h;
+
+  h = dlopen (modname, RTLD_LAZY);
+  if (h == NULL)
+    {
+      printf ("cannot open '%s': %s\n", modname, dlerror ());
+      exit (1);
+    }
+
+  fp = dlsym (h, "in_dso");
+  if (fp == NULL)
+    {
+      printf ("cannot get symbol 'in_dso': %s\n", dlerror ());
+      exit (1);
+    }
+
+  size_t modid = -1;
+  if (dlinfo (h, RTLD_DI_TLS_MODID, &modid))
+    {
+      printf ("dlinfo RTLD_DI_TLS_MODID failed: %s\n", dlerror ());
+      result = 1;
+    }
+  else
+    printf ("dlinfo says TLS module ID %Zu\n", modid);
+
+  void *block;
+  if (dlinfo (h, RTLD_DI_TLS_DATA, &block))
+    {
+      printf ("dlinfo RTLD_DI_TLS_DATA failed: %s\n", dlerror ());
+      result = 1;
+    }
+  else if (block != NULL)
+    {
+      printf ("dlinfo RTLD_DI_TLS_DATA says %p but should be unallocated\n",
+	      block);
+      result = 1;
+    }
+
+  result |= fp (0, NULL);
+
+  foop = dlsym (h, "foo");
+  if (foop == NULL)
+    {
+      printf ("cannot get symbol 'foo' the second time: %s\n", dlerror ());
+      exit (1);
+    }
+  if (*foop != 16)
+    {
+      puts ("foo != 16");
+      result = 1;
+    }
+
+  /* Now the module's TLS block has been used and should appear.  */
+  if (dlinfo (h, RTLD_DI_TLS_DATA, &block))
+    {
+      printf ("dlinfo RTLD_DI_TLS_DATA failed the second time: %s\n",
+	      dlerror ());
+      result = 1;
+    }
+  else if (block != foop)
+    {
+      printf ("dlinfo RTLD_DI_TLS_DATA says %p but should be %p\n",
+	      block, foop);
+      result = 1;
+    }
+
+  dlclose (h);
+
+  return result;
+}
+
+
+#include <support/test-driver.c>