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, 363 insertions, 0 deletions

diff --git a/REORG.TODO/dlfcn/tststatic4.c b/REORG.TODO/dlfcn/tststatic4.c
new file mode 100644
index 0000000000..55ce52ba85
--- /dev/null
+++ b/REORG.TODO/dlfcn/tststatic4.c
@@ -0,0 +1,363 @@
+/* Global object symbol access tests with a static executable (BZ #15022).
+   Copyright (C) 2013-2017 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <http://www.gnu.org/licenses/>.  */
+
+#include <dlfcn.h>
+#include <stddef.h>
+#include <stdio.h>
+
+#define MAGIC0 0
+#define MAGIC1 0x5500ffaa
+#define MAGIC2 0xaaff0055
+#define MAGIC3 0xff55aa00
+
+/* Check the ability to access the global symbol object and then
+   global-scope symbol access consistency via different mappings
+   requested from a static executable.  */
+static int
+do_test (void)
+{
+  unsigned int (*initial_getfoo) (void);
+  void (*initial_setfoo) (unsigned int);
+  unsigned int (*global_getfoo) (void);
+  void (*global_setfoo) (unsigned int);
+  unsigned int (*local_getfoo) (void);
+  void (*local_setfoo) (unsigned int);
+  unsigned int *initial_foop;
+  unsigned int *global_foop;
+  unsigned int *local_foop;
+  void *initial_handle;
+  void *global_handle;
+  void *local_handle;
+  unsigned int foo;
+
+  /* Try to map self.  */
+  initial_handle = dlopen (NULL, RTLD_LAZY | RTLD_GLOBAL);
+  if (initial_handle == NULL)
+    {
+      printf ("dlopen [initial] (NULL): %s\n", dlerror ());
+      return 1;
+    }
+
+  /* Make sure symbol lookups fail gracefully.  */
+  initial_foop = dlsym (initial_handle, "foo");
+  if (initial_foop != NULL)
+    {
+      printf ("dlsym [initial] (foo): got %p, expected NULL\n", initial_foop);
+      return 1;
+    }
+
+  initial_getfoo = dlsym (initial_handle, "getfoo");
+  if (initial_getfoo != NULL)
+    {
+      printf ("dlsym [initial] (getfoo): got %p, expected NULL\n",
+	      initial_getfoo);
+      return 1;
+    }
+
+  initial_setfoo = dlsym (initial_handle, "setfoo");
+  if (initial_setfoo != NULL)
+    {
+      printf ("dlsym [initial] (setfoo): got %p, expected NULL\n",
+	      initial_setfoo);
+      return 1;
+    }
+
+  /* Try to map a module into the global scope.  */
+  global_handle = dlopen ("modstatic3.so", RTLD_LAZY | RTLD_GLOBAL);
+  if (global_handle == NULL)
+    {
+      printf ("dlopen [global] (modstatic3.so): %s\n", dlerror ());
+      return 1;
+    }
+
+  /* Get at its symbols.  */
+  global_foop = dlsym (global_handle, "foo");
+  if (global_foop == NULL)
+    {
+      printf ("dlsym [global] (foo): %s\n", dlerror ());
+      return 1;
+    }
+
+  global_getfoo = dlsym (global_handle, "getfoo");
+  if (global_getfoo == NULL)
+    {
+      printf ("dlsym [global] (getfoo): %s\n", dlerror ());
+      return 1;
+    }
+
+  global_setfoo = dlsym (global_handle, "setfoo");
+  if (global_setfoo == NULL)
+    {
+      printf ("dlsym [global] (setfoo): %s\n", dlerror ());
+      return 1;
+    }
+
+  /* Try to map self again now.  */
+  local_handle = dlopen (NULL, RTLD_LAZY | RTLD_LOCAL);
+  if (local_handle == NULL)
+    {
+      printf ("dlopen [local] (NULL): %s\n", dlerror ());
+      return 1;
+    }
+
+  /* Make sure we can get at the previously loaded module's symbols
+     via this handle too.  */
+  local_foop = dlsym (local_handle, "foo");
+  if (local_foop == NULL)
+    {
+      printf ("dlsym [local] (foo): %s\n", dlerror ());
+      return 1;
+    }
+
+  local_getfoo = dlsym (local_handle, "getfoo");
+  if (local_getfoo == NULL)
+    {
+      printf ("dlsym [local] (getfoo): %s\n", dlerror ());
+      return 1;
+    }
+
+  local_setfoo = dlsym (local_handle, "setfoo");
+  if (local_setfoo == NULL)
+    {
+      printf ("dlsym [local] (setfoo): %s\n", dlerror ());
+      return 1;
+    }
+
+  /* Make sure we can get at the previously loaded module's symbols
+     via a handle that was obtained before the module was loaded too.  */
+  initial_foop = dlsym (initial_handle, "foo");
+  if (initial_foop == NULL)
+    {
+      printf ("dlsym [initial] (foo): %s\n", dlerror ());
+      return 1;
+    }
+
+  initial_getfoo = dlsym (initial_handle, "getfoo");
+  if (initial_getfoo == NULL)
+    {
+      printf ("dlsym [initial] (getfoo): %s\n", dlerror ());
+      return 1;
+    }
+
+  initial_setfoo = dlsym (initial_handle, "setfoo");
+  if (initial_setfoo == NULL)
+    {
+      printf ("dlsym [initial] (setfoo): %s\n", dlerror ());
+      return 1;
+    }
+
+  /* Make sure the view of the initial state is consistent.  */
+  foo = *initial_foop;
+  if (foo != MAGIC0)
+    {
+      printf ("*foop [initial]: got %#x, expected %#x\n", foo, MAGIC0);
+      return 1;
+    }
+
+  foo = *global_foop;
+  if (foo != MAGIC0)
+    {
+      printf ("*foop [global]: got %#x, expected %#x\n", foo, MAGIC0);
+      return 1;
+    }
+
+  foo = *local_foop;
+  if (foo != MAGIC0)
+    {
+      printf ("*foop [local]: got %#x, expected %#x\n", foo, MAGIC0);
+      return 1;
+    }
+
+  foo = initial_getfoo ();
+  if (foo != MAGIC0)
+    {
+      printf ("getfoo [initial]: got %#x, expected %#x\n", foo, MAGIC0);
+      return 1;
+    }
+
+  foo = global_getfoo ();
+  if (foo != MAGIC0)
+    {
+      printf ("getfoo [global]: got %#x, expected %#x\n", foo, MAGIC0);
+      return 1;
+    }
+
+  foo = local_getfoo ();
+  if (foo != MAGIC0)
+    {
+      printf ("getfoo [local]: got %#x, expected %#x\n", foo, MAGIC0);
+      return 1;
+    }
+
+  /* Likewise with a change to its state made through the first handle.  */
+  initial_setfoo (MAGIC1);
+
+  foo = *initial_foop;
+  if (foo != MAGIC1)
+    {
+      printf ("*foop [initial]: got %#x, expected %#x\n", foo, MAGIC1);
+      return 1;
+    }
+
+  foo = *global_foop;
+  if (foo != MAGIC1)
+    {
+      printf ("*foop [global]: got %#x, expected %#x\n", foo, MAGIC1);
+      return 1;
+    }
+
+  foo = *local_foop;
+  if (foo != MAGIC1)
+    {
+      printf ("*foop [local]: got %#x, expected %#x\n", foo, MAGIC1);
+      return 1;
+    }
+
+  foo = initial_getfoo ();
+  if (foo != MAGIC1)
+    {
+      printf ("getfoo [initial]: got %#x, expected %#x\n", foo, MAGIC1);
+      return 1;
+    }
+
+  foo = global_getfoo ();
+  if (foo != MAGIC1)
+    {
+      printf ("getfoo [global]: got %#x, expected %#x\n", foo, MAGIC1);
+      return 1;
+    }
+
+  foo = local_getfoo ();
+  if (foo != MAGIC1)
+    {
+      printf ("getfoo [local]: got %#x, expected %#x\n", foo, MAGIC1);
+      return 1;
+    }
+
+  /* Likewise with a change to its state made through the second handle.  */
+  global_setfoo (MAGIC2);
+
+  foo = *initial_foop;
+  if (foo != MAGIC2)
+    {
+      printf ("*foop [initial]: got %#x, expected %#x\n", foo, MAGIC2);
+      return 1;
+    }
+
+  foo = *global_foop;
+  if (foo != MAGIC2)
+    {
+      printf ("*foop [global]: got %#x, expected %#x\n", foo, MAGIC2);
+      return 1;
+    }
+
+  foo = *local_foop;
+  if (foo != MAGIC2)
+    {
+      printf ("*foop [local]: got %#x, expected %#x\n", foo, MAGIC2);
+      return 1;
+    }
+
+  foo = initial_getfoo ();
+  if (foo != MAGIC2)
+    {
+      printf ("getfoo [initial]: got %#x, expected %#x\n", foo, MAGIC2);
+      return 1;
+    }
+
+  foo = global_getfoo ();
+  if (foo != MAGIC2)
+    {
+      printf ("getfoo [global]: got %#x, expected %#x\n", foo, MAGIC2);
+      return 1;
+    }
+
+  foo = local_getfoo ();
+  if (foo != MAGIC2)
+    {
+      printf ("getfoo [local]: got %#x, expected %#x\n", foo, MAGIC2);
+      return 1;
+    }
+
+  /* Likewise with a change to its state made through the third handle.  */
+  local_setfoo (MAGIC3);
+
+  foo = *initial_foop;
+  if (foo != MAGIC3)
+    {
+      printf ("*foop [initial]: got %#x, expected %#x\n", foo, MAGIC3);
+      return 1;
+    }
+
+  foo = *global_foop;
+  if (foo != MAGIC3)
+    {
+      printf ("*foop [global]: got %#x, expected %#x\n", foo, MAGIC3);
+      return 1;
+    }
+
+  foo = *local_foop;
+  if (foo != MAGIC3)
+    {
+      printf ("*foop [local]: got %#x, expected %#x\n", foo, MAGIC3);
+      return 1;
+    }
+
+  foo = initial_getfoo ();
+  if (foo != MAGIC3)
+    {
+      printf ("getfoo [initial]: got %#x, expected %#x\n", foo, MAGIC3);
+      return 1;
+    }
+
+  foo = global_getfoo ();
+  if (foo != MAGIC3)
+    {
+      printf ("getfoo [global]: got %#x, expected %#x\n", foo, MAGIC3);
+      return 1;
+    }
+
+  foo = local_getfoo ();
+  if (foo != MAGIC3)
+    {
+      printf ("getfoo [local]: got %#x, expected %#x\n", foo, MAGIC3);
+      return 1;
+    }
+
+  /* All done, clean up.  */
+  initial_getfoo = NULL;
+  initial_setfoo = NULL;
+  initial_foop = NULL;
+
+  local_getfoo = NULL;
+  local_setfoo = NULL;
+  local_foop = NULL;
+  dlclose (local_handle);
+
+  global_getfoo = NULL;
+  global_setfoo = NULL;
+  global_foop = NULL;
+  dlclose (global_handle);
+
+  dlclose (initial_handle);
+
+  return 0;
+}
+
+#define TEST_FUNCTION do_test ()
+#include "../test-skeleton.c"