libtool/tests/lt_dlopen_a.at

# lt_dlopen_a.at -- test libltdl functionality                -*- Autotest -*-
#
#   Copyright (C) 2009, 2011-2019, 2021-2024 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.  If not, see <https://www.gnu.org/licenses/>.
####

AT_SETUP([lt_dlopen archive])
AT_KEYWORDS([libltdl lt_dlopen_a])

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

/* This dlopen() in the main executable should override any dlopen()s in
   shared libraries etc.

   If that is not the case (or the platform does not use dlopen()) then this
   test should exit 77, causing the test to SKIP.
*/
static int retcde = 77;

void * dlopen(const char *path, int mode) {
  if (!(strcmp(path,"plugin.a") && strcmp(path,"plugin.lib")))
    {
      fprintf(stderr,"Tried to open archive %s\n",path);
      retcde = 1;
    }
  else
    {
      fprintf(stderr,"Opening ... %s\n", path);
      if (retcde == 77) retcde = 0;
    }
  return NULL;
}

int
main (int argc, char* argv[])
{
  int err = 0;
  lt_dlhandle plugin_handle;

  lt_dlinit ();
  plugin_handle = lt_dlopenext (argv[1]);
  lt_dlexit ();
  return retcde;
}
]])

AT_DATA([plugin.c],
[[
int i = 1;
]])

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

CPPFLAGS="$LTDLINCL $CPPFLAGS"
inst=`pwd`/inst
libdir=$inst/lib
bindir=$inst/bin

AT_CHECK([$CC $CPPFLAGS $CFLAGS -c main.c || exit 77],[],[ignore],[ignore])
AT_CHECK([$LIBTOOL --mode=compile $CC $CPPFLAGS $CFLAGS -c plugin.c || exit 77],
	 [], [ignore], [ignore])
AT_CHECK([$LIBTOOL --mode=link $CC $CFLAGS $LDFLAGS -o plugin.la -rpath ]dnl
	 [$libdir -module -no-undefined -avoid-version plugin.lo || exit 77],
	 [], [ignore], [ignore])

AT_CHECK([$LIBTOOL --mode=link $CC $CFLAGS $LDFLAGS -o main$EXEEXT ]dnl
	 [main.$OBJEXT -dlopen plugin.la $LIBLTDL || exit 77],
	 [], [ignore], [ignore])

mkdir -p $libdir
mkdir -p $bindir

AT_CHECK([$LIBTOOL --mode=install cp plugin.la $libdir],[], [ignore], [ignore])
AT_CHECK([$LIBTOOL --mode=install cp main$EXEEXT $bindir],[], [ignore], [ignore])
AT_CHECK([test -f "$libdir/plugin.a" || exit 77])
LT_AT_EXEC_CHECK([$bindir/main], [], [ignore], [ignore],[$libdir/plugin.la])

AT_CLEANUP