Date: Wed, 03 Jul 1996 06:50:09 -0700 From: David Greenman <davidg@root.com> To: grog@lemis.de (Greg Lehey) Cc: freebsd-stable@freebsd.org (FreeBSD Stable Users) Subject: Re: gdb broken in latest -stable? Message-ID: <199607031350.GAA00224@root.com> In-Reply-To: Your message of "Wed, 03 Jul 1996 06:50:59 %2B0200." <199607030450.GAA23785@allegro.lemis.de>
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>I've run into a strange problem on -stable: I can't even start
>programs under gdb:
...
> Program terminated with signal SIGBUS, Bus error.
I can't reproduce this:
[implode:davidg] cat foo.c
main()
{
int a = 2, b = 2;
int c;
printf("first line\n");
printf("second line\n");
printf("third line\n");
printf("fourth line\n");
c = a + b;
printf("The answer is %d\n", c);
}
[implode:davidg] gdb foo
GDB is free software and you are welcome to distribute copies of it
under certain conditions; type "show copying" to see the conditions.
There is absolutely no warranty for GDB; type "show warranty" for details.
GDB 4.13 (i386-unknown-freebsd), Copyright 1994 Free Software Foundation, Inc...
(gdb) break main
Breakpoint 1 at 0x165c: file foo.c, line 6.
(gdb) r
Starting program: /local/home/davidg/foo
Breakpoint 1, main () at foo.c:6
6 printf("first line\n");
(gdb) step
first line
7 printf("second line\n");
(gdb) step
second line
8 printf("third line\n");
(gdb) step
third line
9 printf("fourth line\n");
(gdb) step
fourth line
12 printf("The answer is %d\n", c);
(gdb) step
The answer is 4
13 }
(gdb) step
0x10d3 in start ()
(gdb) step
Single stepping until exit from function start,
which has no line number information.
Program exited with code 020.
(gdb) quit
This is with a kernel that is up to date as of the time that I'm writing
this (July 3rd, 6:50am PST). My gdb binary is about a week old, but there
haven't been any commits to an area of the source tree that would affect
this (as far as I know).
-DG
David Greenman
Core-team/Principal Architect, The FreeBSD Project
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