Vague question is vague.
http://www2.st.com/content/st_com/en/pr ... 011k4.html
ETA: you shouldn't use the forum area to ID your question, I read the "new" messages list which mashes all new messages together, if I had not seen the forum heading, you would not get this. Looks like they added support to OpenOCD in Feb 2016.
https://sourceforge.net/p/openocd/mailm ... /34882694/