ui_buf 199 tools/perf/util/unwind-libdw.c struct unwind_info *ui, ui_buf = { ui_buf 213 tools/perf/util/unwind-libdw.c ui = zalloc(sizeof(ui_buf) + sizeof(ui_buf.entries[0]) * max_stack); ui_buf 217 tools/perf/util/unwind-libdw.c *ui = ui_buf;