GDB 5, pascal, seeg faulting, questions....

GDB 5, pascal, seeg faulting, questions....

[Oldham, Adam]

I have a LARGE code base writtin in Pascal (GPC), Assembly(NASM) And C(GCC).
Its currently being ported to linux as for both development and runtime
environments.  When running the native executable created, the code base
runs fine.  However, when running gdb on the executable, I get a ton of seg
faults with my code before it reaches the point I want to break on.  So, one
of my questions is, when you break on a thread other than the parent thread,
do all the threads stop execution or do they continue execution even though
one thread is stopped?

Now, my next question is in regards to Pascal in GDB only.  I am using GDB
development version 20010529 (which has all the string errors from last week
fixed).  In pascal you can have pointers just like in C.  I have tested this
on C code.  When you have a pointer in C it'll either print the value of
what you are pointing to or print the contents of the structure being
pointed to with no problem.  In a Pascal Code Base, when printing the
contents of a variable on the GDB command line I get, "Attempt to
dereference a generic pointer", when doing something like this: "(gdb) p
Somepointer^".  Doing "(gdb) p Somepointer" does return the memory address
sucessfully though.

Also, are there any plans to allow pascal in gdb to not be case sensitive?
Also, If I modify some things, would there be enough interest that I should
submit the changes?

Thanks,
ADam

-----------------------------------------------------------------------
C. Adam Oldham              Marconi Commerce Systems Inc.
Software Engineer           7300 West Friendly Ave.
adam.oldham@marconi.com     Greensboro, NC 27420-2087
Phone : 336.547.5952        Fax   : 336.547.5079
-----------------------------------------------------------------------
This document contains confidential information of Marconi Commerce
Systems Inc.  In consideration of the receipt of this document, the
recipient agrees not to reproduce, copy, use or transmit this document
and/or the information contained herein, in whole or in part, or to
suffer such actions by others, for any purpose except with written
permission, first obtained, of Marconi Commerce Systems Inc., and
further agrees to surrender the same to Marconi Commerce Systems Inc.
upon demand.
-----------------------------------------------------------------------

Re: GDB 5, pascal, seeg faulting, questions....

[Daniel Berlin]

"Oldham, Adam" <adam.oldham@marconi.com> writes:

> I have a LARGE code base writtin in Pascal (GPC), Assembly(NASM) And C(GCC).
> Its currently being ported to linux as for both development and runtime
> environments.  When running the native executable created, the code base
> runs fine.  However, when running gdb on the executable, I get a ton of seg
> faults with my code before it reaches the point I want to break on.  So, one
> of my questions is, when you break on a thread other than the parent thread,
> do all the threads stop execution or do they continue execution even though
> one thread is stopped?
> 
> Now, my next question is in regards to Pascal in GDB only.  I am using GDB
> development version 20010529 (which has all the string errors from last week
> fixed).  In pascal you can have pointers just like in C.  I have tested this
> on C code.  When you have a pointer in C it'll either print the value of
> what you are pointing to or print the contents of the structure being
> pointed to with no problem.  In a Pascal Code Base, when printing the
> contents of a variable on the GDB command line I get, "Attempt to
> dereference a generic pointer", when doing something like this: "(gdb) p
> Somepointer^".  Doing "(gdb) p Somepointer" does return the memory address
> sucessfully though.
> 
> Also, are there any plans to allow pascal in gdb to not be case
> sensitive?
I believe there are case sensitivity changes in gdb already.
Ah, yes, here we  are.

set case-sensitive off

Right now, pascal is defaulting to case_sensitive_on, instead of
case_sensitive_off.

Just edit p-lang.c, search for case_sensitive_on, and change it to
case_sensitive_off,, and you should be in business.

> Also, If I modify some things, would there be enough interest that I should
> submit the changes?
Sure. Do it the right way, of course, and don't make it a bunch of
hacks.

> 
> Thanks,
> ADam
> 
> -----------------------------------------------------------------------
> C. Adam Oldham              Marconi Commerce Systems Inc.
> Software Engineer           7300 West Friendly Ave.
> adam.oldham@marconi.com     Greensboro, NC 27420-2087
> Phone : 336.547.5952        Fax   : 336.547.5079
> -----------------------------------------------------------------------
> This document contains confidential information of Marconi Commerce
> Systems Inc.  In consideration of the receipt of this document, the
> recipient agrees not to reproduce, copy, use or transmit this document
> and/or the information contained herein, in whole or in part, or to
> suffer such actions by others, for any purpose except with written
> permission, first obtained, of Marconi Commerce Systems Inc., and
> further agrees to surrender the same to Marconi Commerce Systems Inc.
> upon demand.
> -----------------------------------------------------------------------

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