libtool/tests/lt_dlexit.at

# Hand crafted tests for GNU Libtool.                         -*- Autotest -*-
# Copyright 2007 Free Software Foundation, Inc.

# This program 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, or (at your option)
# any later version.

# This program 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 this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
# 02110-1301, USA.

# Test libltdl functionality.
# Try to keep the new interfaces of HEAD separate from those of
# branch-1-5 to facilitate testing of older releases.

AT_BANNER([Libltdl functionality.])

AT_SETUP([lt_dlexit unloading libs])
AT_KEYWORDS([libltdl])

# Test for
# http://lists.gnu.org/archive/html/bug-libtool/2007-01/msg00014.html

AT_DATA([main.c],
[[#include <ltdl.h>
#include <stdio.h>
#include <string.h>

typedef int (*pfun_T) (int);
typedef int *pvar_T;

/* lt_dlopen wrapper */
static lt_dlhandle
xdlopen (const char *filename)
{
  lt_dlhandle handle = lt_dlopen (filename);
  if (!handle) {
    fprintf (stderr, "can't open the module %s!\n", filename);
    fprintf (stderr, "error was: %s\n", lt_dlerror());
  }
  return handle;
}

/* lt_dlsym wrapper: try one function and one variable */
static int
xdlsymtest (lt_dlhandle handle, const char *func, const char *var)
{
  pfun_T pf = lt_dlsym (handle, func);
  pvar_T pv = lt_dlsym (handle, var);
  if (pf == NULL) {
    fprintf (stderr, "function `%s' not found\n", func);
    return 1;
  }
  if (pv == NULL) {
    fprintf (stderr, "variable `%s' not found\n", var);
    return 1;
  }
  return (*pf) (*pv);
}

static int
callback (const char *filename, void *data)
{
  printf ("%s: %s\n", (char *)data, filename);
  return 0;
}

static int
try_iterate (const char *search_path)
{
  char *s = "try_iterate";
  return lt_dlforeachfile (search_path, callback, s);
}

int
main (int argc, char **argv)
{
  int i;
  lt_dlhandle b1;

  /* LTDL_SET_PRELOADED_SYMBOLS(); */
  if (lt_dlinit() != 0) {
    fprintf (stderr, "error during initialization: %s\n", lt_dlerror());
    return 1;
  }
  if (!(b1 = xdlopen ("modb1.la"))) return 1;
  if (xdlsymtest (b1, "fb1", "vb1")) return 1;
  /* do not lt_dlclose here on purpose.  */

  if (lt_dlexit() != 0) {
    fprintf (stderr, "error during exit: %s\n", lt_dlerror());
    return 1;
  }
  return 0;
}
]])


AT_DATA([a1.c],
[[int f1 (int x) { return x - 1; }
int v1 = 1;
]])

AT_DATA([b1.c],
[[extern int f1 (int), v1;
int fb1 (int x) { return f1 (v1) + x - 3; }
int vb1 = 3;
]])

: ${LTDLINCL="-I$abs_top_srcdir/libltdl"}
: ${LIBLTDL="$abs_builddir/../libltdl/libltdlc.la"}

CPPFLAGS="$CPPFLAGS $LTDLINCL"
LDFLAGS="$LDFLAGS -no-undefined"

for file in a1 b1; do
  $LIBTOOL --mode=compile $CC $CPPFLAGS $CFLAGS -c $file.c
done
$CC $CPPFLAGS $CFLAGS -c main.c
AT_CHECK([$LIBTOOL --mode=link $CC $CFLAGS $LDFLAGS -o liba1.la a1.lo \
          -rpath /foo -avoid-version], [], [ignore], [ignore])
AT_CHECK([$LIBTOOL --mode=link $CC $CFLAGS $LDFLAGS -o modb1.la b1.lo \
          -rpath /foo -module -avoid-version liba1.la], [], [ignore], [ignore])

# TODO: test -dlpreopen
for dlopen in -dlopen; do
  AT_CHECK([$LIBTOOL --mode=link $CC $CFLAGS $LDFLAGS -o main main.$OBJEXT \
           $dlopen modb1.la $LIBLTDL], [], [ignore], [ignore])
  LT_AT_NOINST_EXEC_CHECK([./main], [-dlopen modb1.la])
done

AT_CLEANUP