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[src/netbsd-9]: src/sys/ddb Pull up following revision(s) (requested by uwe i...



details:   https://anonhg.NetBSD.org/src/rev/41393954615d
branches:  netbsd-9
changeset: 843804:41393954615d
user:      martin <martin%NetBSD.org@localhost>
date:      Sun Jan 26 11:23:41 2020 +0000

description:
Pull up following revision(s) (requested by uwe in ticket #654):

        sys/ddb/db_output.c: revision 1.35
        sys/ddb/db_output.c: revision 1.36

db_putchar - check if we need to wrap at $maxwidth after whitespace.

That fixes orphaned first character in something like:
    |Stopped in ... longsymbol+0xf00:  |
    |i
    |nsn

Fix typo in comment.

diffstat:

 sys/ddb/db_output.c |  32 ++++++++++++++++++++++----------
 1 files changed, 22 insertions(+), 10 deletions(-)

diffs (62 lines):

diff -r e0c0ae95c368 -r 41393954615d sys/ddb/db_output.c
--- a/sys/ddb/db_output.c       Sun Jan 26 11:21:58 2020 +0000
+++ b/sys/ddb/db_output.c       Sun Jan 26 11:23:41 2020 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: db_output.c,v 1.34 2018/09/16 23:18:55 mrg Exp $       */
+/*     $NetBSD: db_output.c,v 1.34.4.1 2020/01/26 11:23:41 martin Exp $        */
 
 /*
  * Mach Operating System
@@ -35,7 +35,7 @@
 #endif
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: db_output.c,v 1.34 2018/09/16 23:18:55 mrg Exp $");
+__KERNEL_RCSID(0, "$NetBSD: db_output.c,v 1.34.4.1 2020/01/26 11:23:41 martin Exp $");
 
 #include <sys/param.h>
 #include <sys/systm.h>
@@ -103,6 +103,24 @@
        db_last_non_space = db_output_position;
 }
 
+
+/*
+ * End the current line if it exceeds $maxwidth
+ */
+static void
+db_check_wrap(void)
+{
+
+       if (db_max_width >= DB_MIN_MAX_WIDTH
+           && db_output_position >= db_max_width) {
+               cnputc('\n');
+               db_output_position = 0;
+               db_last_non_space = 0;
+               db_output_line++;
+       }
+}
+
+
 static void
 db_more(void)
 {
@@ -148,16 +166,10 @@
                 * Use tabs if possible.
                 */
                db_force_whitespace();
+               db_check_wrap();
                cnputc(c);
                db_output_position++;
-               if (db_max_width >= DB_MIN_MAX_WIDTH
-                   && db_output_position >= db_max_width) {
-                       /* auto new line */
-                       cnputc('\n');
-                       db_output_position = 0;
-                       db_last_non_space = 0;
-                       db_output_line++;
-               }
+               db_check_wrap();
                db_last_non_space = db_output_position;
        } else if (c == '\n') {
                /* Return */



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