--- /dev/null
+# lt_dlopenext.at -- test libltdl functionality -*- Autotest -*-
+#
+# Copyright (C) 2009 Free Software Foundation, Inc.
+# This file is part of GNU Libtool.
+#
+# GNU Libtool is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License as
+# published by the Free Software Foundation; either version 2 of
+# the License, or (at your option) any later version.
+#
+# GNU Libtool 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 General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with GNU Libtool; see the file COPYING. If not, a copy
+# can be downloaded from http://www.gnu.org/licenses/gpl.html,
+# or obtained by writing to the Free Software Foundation, Inc.,
+# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+####
+
+AT_SETUP([lt_dlopenext error messages])
+AT_KEYWORDS([libltdl])
+
+# This test requires shared library support.
+AT_CHECK([$LIBTOOL --features | grep 'enable shared libraries' || exit 77],
+ [], [ignore])
+
+prefix=`pwd`/inst
+libdir=$prefix/lib
+bindir=$prefix/bin
+mkdir $prefix $libdir $bindir
+
+# This code is copied from the Autobook:
+# <http://sources.redhat.com/autobook/autobook/autobook_169.html>
+# so if it needs changes, be sure to notify the Autobook authors
+# about them.
+
+AT_DATA([simple-module.c],
+[[
+#include <stdio.h>
+
+int
+run (const char *argument)
+{
+ printf ("Hello, %s!\n", argument);
+ return 0;
+}
+]])
+
+AT_DATA([ltdl-loader.c],
+[[
+#include <stdio.h>
+#include <stdlib.h>
+#ifndef EXIT_FAILURE
+# define EXIT_FAILURE 1
+# define EXIT_SUCCESS 0
+#endif
+
+#include <limits.h>
+#ifndef PATH_MAX
+# define PATH_MAX 255
+#endif
+
+#include <string.h>
+#include <ltdl.h>
+
+#ifndef MODULE_PATH_ENV
+# define MODULE_PATH_ENV "MODULE_PATH"
+#endif
+
+typedef int entrypoint (const char *argument);
+
+/* Save and return a copy of the dlerror() error message,
+ since the next API call may overwrite the original. */
+static char *dlerrordup (char *errormsg);
+
+int
+main (int argc, const char *argv[])
+{
+ char *errormsg = NULL;
+ lt_dlhandle module = NULL;
+ entrypoint *run = NULL;
+ int errors = 0;
+
+ if (argc != 3)
+ {
+ fprintf (stderr, "USAGE: main MODULENAME ARGUMENT\n");
+ exit (EXIT_FAILURE);
+ }
+
+ /* Initialise libltdl. */
+ errors = lt_dlinit ();
+
+ /* Set the module search path. */
+ if (!errors)
+ {
+ const char *path = getenv (MODULE_PATH_ENV);
+
+ if (path != NULL)
+ errors = lt_dlsetsearchpath (path);
+ }
+
+ /* Load the module. */
+ if (!errors)
+ module = lt_dlopenext (argv[1]);
+
+ /* Find the entry point. */
+ if (module)
+ {
+ run = (entrypoint *) lt_dlsym (module, "run");
+
+ /* In principle, run might legitimately be NULL, so
+ I don't use run == NULL as an error indicator
+ in general. */
+ errormsg = dlerrordup (errormsg);
+ if (errormsg != NULL)
+ {
+ errors = lt_dlclose (module);
+ module = NULL;
+ }
+ }
+ else
+ errors = 1;
+
+ /* Call the entry point function. */
+ if (!errors)
+ {
+ int result = (*run) (argv[2]);
+ if (result < 0)
+ errormsg = strdup ("module entry point execution failed");
+ else
+ printf ("\t=> %d\n", result);
+ }
+
+ /* Unload the module, now that we are done with it. */
+ if (!errors)
+ errors = lt_dlclose (module);
+
+ if (errors)
+ {
+ /* Diagnose the encountered error. */
+ errormsg = dlerrordup (errormsg);
+
+ if (!errormsg)
+ {
+ fprintf (stderr, "%s: dlerror() failed.\n", argv[0]);
+ return EXIT_FAILURE;
+ }
+ }
+
+ /* Finished with ltdl now. */
+ if (!errors)
+ if (lt_dlexit () != 0)
+ errormsg = dlerrordup (errormsg);
+
+ if (errormsg)
+ {
+ fprintf (stderr, "%s: %s.\n", argv[0], errormsg);
+ free (errormsg);
+ exit (EXIT_FAILURE);
+ }
+
+ return EXIT_SUCCESS;
+}
+
+/* Be careful to save a copy of the error message,
+ since the next API call may overwrite the original. */
+static char *
+dlerrordup (char *errormsg)
+{
+ char *error = (char *) lt_dlerror ();
+ if (error && !errormsg)
+ errormsg = strdup (error);
+ return errormsg;
+}
+]])
+
+: ${LTDLINCL="-I$abs_top_srcdir/libltdl"}
+: ${LIBLTDL="$abs_builddir/../libltdl/libltdlc.la"}
+
+CPPFLAGS="$LTDLINCL $CPPFLAGS"
+LDFLAGS="$LDFLAGS -no-undefined"
+
+AT_CHECK([$LIBTOOL --mode=compile $CC $CPPFLAGS $CFLAGS -c simple-module.c],
+ [], [ignore], [ignore])
+AT_CHECK([$LIBTOOL --mode=link $CC $CFLAGS $LDFLAGS -o simple-module.la ]dnl
+ [simple-module.lo -rpath $libdir -module -avoid-version],
+ [], [ignore], [ignore])
+AT_CHECK([$LIBTOOL --mode=compile $CC $CPPFLAGS $CFLAGS -c ltdl-loader.c],
+ [], [ignore], [ignore])
+AT_CHECK([$LIBTOOL --mode=link $CC $CFLAGS $LDFLAGS -o ltdl-loader$EXEEXT ]dnl
+ [ltdl-loader.$OBJEXT -dlopen self $LIBLTDL],
+ [], [ignore], [ignore])
+AT_CHECK([$LIBTOOL --mode=install cp simple-module.la $libdir/simple-module.la], [], [ignore], [ignore])
+AT_CHECK([$LIBTOOL --mode=clean rm -f simple-module.la], [], [ignore], [ignore])
+
+# Try finding the module with and without the .la file, with absolute
+# path, relative path, or one of the path variables. Do not override
+# $PATH for w32, see shlibpath.at for the hacks this requires.
+#
+# Finding the module without the .la file will not work if MODULE_EXT
+# aka. shared_ext is empty.
+
+eval `$LIBTOOL --config | $EGREP '^(shlibpath_var|shrext_cmds)='`
+
+module=no
+eval shared_ext=\"$shrext_cmds\"
+if test -n "$shared_ext"; then
+ have_lafile="with without"
+else
+ have="with"
+fi
+
+if test "$shlibpath_var" = PATH; then
+ $unset shlibpath_var || shlibpath_var=
+fi
+
+for lafile in $have_lafile; do
+ if test $lafile = without; then
+ rm $libdir/simple-module.la
+ fi
+
+ for dir in inst/lib "$libdir"; do
+ LT_AT_EXEC_CHECK([./ltdl-loader], [], [stdout], [ignore],
+ [$dir/simple-module World])
+ AT_CHECK([grep "Hello, World" stdout], [], [ignore])
+
+ for var in MODULE_PATH LTDL_LIBRARY_PATH $shlibpath_var
+ do
+ eval $var=\$dir
+ export $var
+ LT_AT_EXEC_CHECK([./ltdl-loader], [], [stdout], [ignore],
+ [simple-module World])
+ AT_CHECK([grep "Hello, World" stdout], [], [ignore])
+ $unset $var || eval $var=
+ done
+ done
+done
+
+AT_CLEANUP
projects / thirdparty / libtool.git / commitdiff
