#0  0x00007f869cf59000 in JS_GetClass(JSObject*) () from /usr/lib/x86_64-linux-gnu/libmozjs-24.so.0
No symbol table info available.
#1  0x00007f869f3f4d15 in gjs_object_from_g_object () from /usr/lib/libgjs.so.0
No symbol table info available.
#2  0x00007f869f3e99ea in gjs_value_from_g_argument () from /usr/lib/libgjs.so.0
No symbol table info available.
#3  0x00007f869f3ee780 in ?? () from /usr/lib/libgjs.so.0
No symbol table info available.
#4  0x00007f869edfb8cb in ffi_closure_unix64_inner () from /usr/lib/x86_64-linux-gnu/libffi.so.6
No symbol table info available.
#5  0x00007f869edfbc44 in ffi_closure_unix64 () from /usr/lib/x86_64-linux-gnu/libffi.so.6
No symbol table info available.
#6  0x00007f869d6319dc in ?? () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
No symbol table info available.
#7  0x00007f869d6324c9 in ?? () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
No symbol table info available.
#8  0x00007f869d630b46 in ?? () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
No symbol table info available.
#9  0x00007f869f956c3a in g_object_unref () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
No symbol table info available.
#10 0x00007f869f3f20b7 in ?? () from /usr/lib/libgjs.so.0
No symbol table info available.
#11 0x00007f869cfc25af in ?? () from /usr/lib/x86_64-linux-gnu/libmozjs-24.so.0
No symbol table info available.
#12 0x00007f869cfc31f8 in ?? () from /usr/lib/x86_64-linux-gnu/libmozjs-24.so.0
No symbol table info available.
#13 0x00007f869cfc37a0 in ?? () from /usr/lib/x86_64-linux-gnu/libmozjs-24.so.0
No symbol table info available.
#14 0x00007f869cfc66b9 in ?? () from /usr/lib/x86_64-linux-gnu/libmozjs-24.so.0
No symbol table info available.
#15 0x00007f869cfc79c3 in ?? () from /usr/lib/x86_64-linux-gnu/libmozjs-24.so.0
No symbol table info available.
#16 0x00007f869cfc7deb in ?? () from /usr/lib/x86_64-linux-gnu/libmozjs-24.so.0
No symbol table info available.
#17 0x00007f869cf850cc in ?? () from /usr/lib/x86_64-linux-gnu/libmozjs-24.so.0
No symbol table info available.
#18 0x00007f869f3df3ae in ?? () from /usr/lib/libgjs.so.0
No symbol table info available.
#19 0x00007f869f956bac in g_object_unref () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
No symbol table info available.
#20 0x0000000000400f5c in main ()
No symbol table info available.