diff options
Diffstat (limited to 'gnuradio-core/src/guile/dynl-global.c')
| -rw-r--r-- | gnuradio-core/src/guile/dynl-global.c | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/gnuradio-core/src/guile/dynl-global.c b/gnuradio-core/src/guile/dynl-global.c index 1fc3a97a5..3bf2741b1 100644 --- a/gnuradio-core/src/guile/dynl-global.c +++ b/gnuradio-core/src/guile/dynl-global.c @@ -18,6 +18,21 @@ * along with this program. If not, see <http://www.gnu.org/licenses/>. */ +/* + * This file is an attempt to work around a problem that appears on + * certain Ubuntu (and perhaps other) systems. On those systems + * (10.04 is known to have the problem, while 10.10 and later work OK + * without this kludge), we end up with a situation where exceptions + * are not caught by the swig code, even though the swig generated + * code "looks right" and "is right". Details of the issue can be + * found in swig bug 1863647, + * http://sourceforge.net/tracker/index.php?func=detail&aid=1863647&group_id=1645&atid=101645 + * + * We work around the problem by loading swig generated guile modules + * using the equivalent of the dlopen's RTLD_GLOBAL flag. This is + * only possible on systems using libtool-2.*. Those systems contain + * the lt_dlavise_global function. + */ #ifdef HAVE_CONFIG_H #include <config.h> #endif @@ -27,6 +42,10 @@ extern scm_t_bits scm_tc16_dynamic_obj; +#ifdef HAVE_LT_DLADVISE_GLOBAL +/* + * Load shared module using the equivalent of the RTLD_GLOBAL flag + */ static lt_dlhandle dlopenext_global (const char *filename) { @@ -42,6 +61,18 @@ dlopenext_global (const char *filename) return handle; } +#else + +/* + * We don't have lt_dladvise_global. Fall back to lt_dlopenext. + */ +static lt_dlhandle +dlopenext_global (const char *filename) +{ + return lt_dlopenext (filename); +} +#endif + static void * sysdep_dynl_link_global (const char *fname, const char *subr) |