This appears to be a bug in glibc. From glib/gmem.h
The program crashes on this line:
view_text->priv = g_new0 (glViewTextPrivate, 1);
And gdb reports
(gdb) p sizeof(glViewTextPrivate)
$1 = 0
expanding g_new0 reveals
#if defined (__GNUC__) && (__GNUC__ >= 2) && defined (__OPTIMIZE__)
# define _G_NEW(struct_type, n_structs, func) \
(struct_type *) (__extension__ ({ \
gsize __n = (gsize) (n_structs); \
gsize __s = sizeof (struct_type); \
gpointer __p; \
if (__s == 1) \
__p = g_##func (__n); \
else if (__builtin_constant_p (__n) && \
__n <= G_MAXSIZE / __s) \
__p = g_##func (__n * __s); \
else \
__p = g_##func##_n (__n, __s); \
__p; \
}))
which crashes due to a divide by zero in G_MAXSIZE/__s since __s =
sizeof(glViewTextPrivate) = 0.
glViewTextPrivate is defined in view-text.c line 48. As a workaround, I
simply added a dummy int to the (obviously empty struct):
struct _glViewTextPrivate {
int dummy;
};
and again in view-image.c
struct _glViewImagePrivate {
int dummy;
};
this seems to work. Attaching new diff.gz file.
** Patch added: "diff including my 2 changes"
http://launchpadlibrarian.net/43144016/glabels_2.2.7-2.diff.gz
--
glabels crashed with SIGFPE in g_type_create_instance()
https://bugs.launchpad.net/bugs/551958
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