Update.

* dlfcn/Makefile (distribute): Add glreflib1.c and glreflib2.c.
	(tests): Add glrefmain.
	Add rules to build modules and run tests.  Ignore result of glrefmain
	for now since it fails.
	* dlfcn/glrefmain.c: New file.
	* dlfcn/glreflib1.c: New file.
	* dlfcn/glreflib2.c: New file.

	* test-skeleton.c: Include <string.h> for strsignal prototype.

ChangeLog

@@ -1,5 +1,15 @@
 2000-04-01  Ulrich Drepper  <drepper@redhat.com>
 
+	* dlfcn/Makefile (distribute): Add glreflib1.c and glreflib2.c.
+	(tests): Add glrefmain.
+	Add rules to build modules and run tests.  Ignore result of glrefmain
+	for now since it fails.
+	* dlfcn/glrefmain.c: New file.
+	* dlfcn/glreflib1.c: New file.
+	* dlfcn/glreflib2.c: New file.
+
+	* test-skeleton.c: Include <string.h> for strsignal prototype.
+
 	* locale/programs/ld-collate.c (check_duplicate): Allow repertoire
 	to be missing.
 

dlfcn/Makefile

@@ -1,4 +1,4 @@
-# Copyright (C) 1995, 1996, 1997, 1998, 1999 Free Software Foundation, Inc.
+# Copyright (C) 1995-1999, 2000 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
@@ -20,7 +20,7 @@ subdir		:= dlfcn
 headers		:= bits/dlfcn.h dlfcn.h
 extra-libs	:= libdl
 libdl-routines	:= dlopen dlclose dlsym dlvsym dlerror dladdr
-distribute	:= dlopenold.c
+distribute	:= dlopenold.c glreflib1.c glreflib2.c
 
 extra-libs-others := libdl
 
@@ -31,4 +31,21 @@ libdl-routines	+= dlopenold
 libdl-shared-only-routines := dlopenold
 endif
 
+ifeq (yes,$(build-shared))
+tests = glrefmain
+endif
+modules-names = glreflib1 glreflib2
+extra-objs += $(modules-names:=.os)
+
 include ../Rules
+
+test-modules = $(addprefix $(objpfx),$(addsuffix .so,$(modules-names)))
+$(test-modules): $(objpfx)%.so: $(objpfx)%.os
+	$(build-module)
+
+$(objpfx)glrefmain: $(objpfx)libdl.so
+$(objpfx)glrefmain.out: $(objpfx)glrefmain \
+			$(objpfx)glreflib1.so $(objpfx)glreflib2.so
+	-$(elf-objpfx)$(rtld-installed-name) \
+	  --library-path $(rpath-link)$(patsubst %,:%,$(sysdep-library-path)) \
+	  $(objpfx)glrefmain > $@

dlfcn/glreflib1.c

@@ -0,0 +1,24 @@
+/* Test for dependency tracking  added by relocations.
+   Copyright (C) 2000 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 Library General Public License as
+   published by the Free Software Foundation; either version 2 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
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If not,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+int
+ref1 (void)
+{
+  return 42;
+}

dlfcn/glreflib2.c

@@ -0,0 +1,26 @@
+/* Test for dependency tracking  added by relocations.
+   Copyright (C) 2000 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 Library General Public License as
+   published by the Free Software Foundation; either version 2 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
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If not,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+extern int ref1 (void);
+
+int
+ref2 (void)
+{
+  return ref1 ();
+}

dlfcn/glrefmain.c

@@ -0,0 +1,76 @@
+/* Test for dependency tracking  added by relocations.
+   Copyright (C) 2000 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 Library General Public License as
+   published by the Free Software Foundation; either version 2 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
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If not,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+#include <dlfcn.h>
+#include <error.h>
+#include <errno.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+
+static void *
+load (const char *name)
+{
+  void *d = dlopen (name, RTLD_LAZY | RTLD_GLOBAL);
+  if (d == NULL)
+    error (EXIT_FAILURE, errno, "cannot load `%s'", name);
+  return d;
+}
+
+
+#define TEST_FUNCTION do_test ()
+int
+do_test (void)
+{
+  void *d1;
+  void *d2;
+  int (*f) (void);
+
+  d1 = load ("glreflib1.so");
+  d2 = load ("glreflib2.so");
+
+  f = dlsym (d2, "ref2");
+  if (f == NULL)
+    error (EXIT_FAILURE, errno, "cannot get pointer to `%s'", "ref2");
+
+  if (f () != 42)
+    error (EXIT_FAILURE, 0, "wrong result from `%s'", "ref2");
+
+  puts ("Correct result in first call");
+  fflush (stdout);
+
+  /* Now unload the first file.  */
+  dlclose (d1);
+
+  puts ("About to call the second time");
+  fflush (stdout);
+
+  /* Try calling the function again.  */
+  if (f () != 42)
+    error (EXIT_FAILURE, 0, "wrong result from `%s' (second call)", "ref2");
+
+  puts ("Second call succeeded!");
+  fflush (stdout);
+
+  dlclose (d2);
+
+  return 0;
+}
+
+#include "../test-skeleton.c"

test-skeleton.c

@@ -1,5 +1,5 @@
 /* Skeleton for test programs.
-   Copyright (C) 1998 Free Software Foundation, Inc.
+   Copyright (C) 1998, 2000 Free Software Foundation, Inc.
    Contributed by Ulrich Drepper <drepper@cygnus.com>, 1998.
 
    The GNU C Library is free software; you can redistribute it and/or
@@ -22,6 +22,7 @@
 #include <signal.h>
 #include <stdio.h>
 #include <stdlib.h>
+#include <string.h>
 #include <unistd.h>
 #include <sys/resource.h>
 #include <sys/wait.h>