void tui_show_symtab_source(struct gdbarch *, struct symtab *, struct tui_line_or_address, int)
void tui_vertical_source_scroll(enum tui_scroll_direction, int)
void tui_set_source_content_nil(struct tui_win_info *, char *)
enum tui_status tui_set_source_content(struct symtab *, int, int)
int tui_source_is_displayed(const char *)