still problem with gdb 5.1.1 on alpha...

still problem with gdb 5.1.1 on alpha...

[henri delebecque]

hello,

I have posted yesterday a mail about problems while using gdb 5.1.1
on an alpha running Tru64 Unix version 5.0.A.

I have received an answer from J.Brobecker (thanksJoel), which
suggests a patch. Unfortunately, I have still the same problem after
applying it.

Moreover, J. Brobecker tells me that I can proceed after the first
message telling me that an internal error as occured, just by answering
'y' to the question: "will you proceed" and 'n' to the question "should
gdb make a core". I have done so, but as soon as I run my program,
I have the following messages:

"Program received signal SIGTRAP, Trace/breakpoint trap.
warning: Hit heuristic-fence-post without finding
warning: enclosing function for address 0x3ff800203a8
This warning occurs if you are debugging a function without any symbols
...
Otherwise you told GDB there was a function where isn't one or,
(moke likely) you have encountered a bug in GDB"

Since I have compiled with the "-g" option in gcc, I think
that I'm in the latter case.

Any idea ?
Thanks
Best regards
-- 
______________________________________________________________
| Henri Delebecque                        delebecq@supelec.fr |
| Webmaster                                                   |
| Supelec                          Tel (33)  01.69.85.14.91   |
| 3 rue Joliot-Curie                                          |
| Plateau de Moulon                 Fax:(33) 01.69.85.12.34   |
| 91190 Gif sur Yvette                                        |
| FRANCE                                                      |
|_____________________________________________________________|

Re: still problem with gdb 5.1.1 on alpha...

[Joel Brobecker]

> "Program received signal SIGTRAP, Trace/breakpoint trap.

I've never seen this before, so I can't help you here. You should post
a complete example with instructions on how to reproduce your problem.

> warning: Hit heuristic-fence-post without finding
> warning: enclosing function for address 0x3ff800203a8
> This warning occurs if you are debugging a function without any symbols
> ...

I think that I have a patch for this one. I have a patch in the pipe
that I'd like to submit but so far I could not reproduce it without an
Ada program. Please publish your example, and I'll see if my changes fix
it.

-- 
Joel

Re: still problem with gdb 5.1.1 on alpha...

[Joel Brobecker]

> I think that I have a patch for this one. I have a patch in the pipe
> that I'd like to submit but so far I could not reproduce it without an
> Ada program. Please publish your example, and I'll see if my changes fix
> it.

BTW, I forgot to mention that I am interested in your example because it
will allow me to present my patch with a testcase that is written in
something else than Ada (easier for me to add a new regression test, and
also easier for the other GDB developers to reproduce it as well).

-- 
Joel

problems with gdb 5.1.1 on alpha...

[henri delebecque]

Hello again,

Joel Brobecker helps me a lot, and I appreciate this generous support.
Thanks a lot

He suggest that I post all the information required for reproducing my problem.
I hope that I haven't miss anything. Feel free to ask for more information.

---------------- The context:
alpha server, Tru64 Unix v50.A
gcc version 3.0.4 (I build it few days ago, and used it a lot since)
gdb version 5.1.1

----------------- I have logged the trace of:
the configure (trace_configure)
the make (trace_make)
the run (trace_run)
  They are accessible at: ftp://ftp.supelec.fr/pub/cs/misc/trace*.gz
(they are pretty big, and can be interesting, since the make displays
strange warnings)

-------------- the program:
#include <stdio.h>
#include <stdlib.h>
int main() {
	printf ("hello, world\n");
	return 0;
}
// I know, I forgot comments !! :-)

Thanks for any help
Best regards
-- 
______________________________________________________________
| Henri Delebecque                        delebecq@supelec.fr |
| Webmaster                                                   |
| Supelec                          Tel (33)  01.69.85.14.91   |
| 3 rue Joliot-Curie                                          |
| Plateau de Moulon                 Fax:(33) 01.69.85.12.34   |
| 91190 Gif sur Yvette                                        |
| FRANCE                                                      |
|_____________________________________________________________|