- Change the ddb paging "support" to use a variable (db_lines_per_page) to

  control the number of lines per page rather than a constant.  The variable
  can be examined and changed in ddb as '$lines'.  Setting the variable to
  0 will effectively turn off paging.
- Change db_putchar() to force out pending whitespace before outputting
  newlines and carriage returns so that one can rub out content on the
  current line via '\r     \r' type strings.
- Change the simple pager to rub out the --More-- prompt explicitly when
  the routine exits.
- Add some aliases to the simple pager to make it more compatible with
  more(1): 'e' and 'j' do a single line.  'd' does half a page, and
  'f' does a full page.

MFC after:	1 month
Inspired by:	kris

1 files changed, 1 insertions, 2 deletions

diff --git a/sys/ddb/ddb.h b/sys/ddb/ddb.h
index 97d332e..ba66705 100644
--- a/sys/ddb/ddb.h
+++ b/sys/ddb/ddb.h
@@ -39,8 +39,6 @@
 
 #include <machine/db_machdep.h>		/* type definitions */
 
-#define	DB_LINES_PER_PAGE	20
-
 typedef void db_cmdfcn_t(db_expr_t addr, boolean_t have_addr, db_expr_t count,
 	    char *modif);
 
@@ -78,6 +76,7 @@ extern int db_store_count;
 extern db_expr_t db_radix;
 extern db_expr_t db_max_width;
 extern db_expr_t db_tab_stop_width;
+extern db_expr_t db_lines_per_page;
 
 struct thread;
 struct vm_map;