[6982] in Athena Bugs
decmips 7.2P: troff, /mit/x11/src/mit/clients/xditview/devX75/DESC
daemon@ATHENA.MIT.EDU (daemon@ATHENA.MIT.EDU)
Tue Jan 29 09:39:00 1991
Date: Tue, 29 Jan 91 09:38:42 EST
From: John T Kohl <jtkohl@ATHENA.MIT.EDU>
To: bugs@ATHENA.MIT.EDU
In-Reply-To: [6977]
System name: quicksilver
Type and version: KN01 7.2P
Display type: PM-MONO
What were you trying to do?
use troff on some input.
What's wrong:
It can core dump due to bad pointer alignment problems.
What should have happened:
It shouldn't have. Here's a patch for troff
*** /source/third/common/ditroff/troff/n3.c Thu Jan 16 01:39:36 1986
--- n3.c Tue Jan 29 09:31:22 1991
***************
*** 517,522 ****
--- 517,525 ----
}
+ /* only works for y = powers of 2... */
+ #define roundup(x,y) (((x) + (y-1)) & ~(y-1))
+
char *setbrk(x)
int x;
{
***************
*** 523,530 ****
register char *i;
char *sbrk();
! if (x % 2 == 1)
! x++;
if ((i = sbrk(x)) == MAXPTR) {
fprintf(stderr, "troff: Core limit reached.\n");
edone(0100);
--- 526,533 ----
register char *i;
char *sbrk();
! x = roundup(x,4);
!
if ((i = sbrk(x)) == MAXPTR) {
fprintf(stderr, "troff: Core limit reached.\n");
edone(0100);
There's also a problem with the DESC file that comes with xditview; it
tries to use too many fonts. Here's a patch for that as well:
*** /mit/x11/src/mit/clients/xditview/devX75/DESC Wed Mar 1 15:49:56 1989
--- DESC Tue Jan 29 09:11:57 1991
***************
*** 2,8 ****
# special fonts have to go at the end or else troff
# won't know about their numbers unless you do .fp
#
! fonts 21 R I B F C CO CB CF H HO HB HF N NI NB NF A AI AB AF S
sizes 8 10 12 14 18 24 0
res 75
hor 1
--- 2,9 ----
# special fonts have to go at the end or else troff
# won't know about their numbers unless you do .fp
#
! fonts 10 R I B F H HB C CB CF S
! #fonts 21 R I B F C CO CB CF H HO HB HF N NI NB NF A AI AB AF S
sizes 8 10 12 14 18 24 0
res 75
hor 1
Please describe any relevant documentation references:
previous bug report [6977] should be DISREGARDED; the font table
sizes need to be the same between troff and makedev.
