_IO_vfprintf_internal (s=<optimized out>, format=<optimized out>, ap=<optimized out>) at vfprintf.c:1624
__GI___vasprintf_chk (result_ptr=0x7fffc68874e8, flags=1, format=0x7fa7d2e347b9 "%s\\%d,%d,%d,%d", args=0x7fffc6887508) at vasprintf_chk.c:68
vasprintf (__ap=<optimized out>, __fmt=<optimized out>, __ptr=0x7fffc68874e8) at /usr/include/x86_64-linux-gnu/bits/stdio2.h:199
g_vasprintf (string=0x7fffc68874e8, format=<optimized out>, args=<optimized out>) at /build/buildd/glib2.0-2.32.0/./glib/gprintf.c:314
g_strdup_vprintf (format=<optimized out>, args=<optimized out>) at /build/buildd/glib2.0-2.32.0/./glib/gstrfuncs.c:509