opal_backtrace_buffer   68 opal/mca/backtrace/execinfo/backtrace_execinfo.c opal_backtrace_buffer(char ***message_out, int *len_out)
opal_backtrace_buffer   34 opal/mca/backtrace/none/backtrace_none.c opal_backtrace_buffer(char ***message_out, int *len_out)
opal_backtrace_buffer   44 opal/mca/backtrace/printstack/backtrace_printstack.c opal_backtrace_buffer(char ***message_out, int *len_out)