[Info-vax] ada archives and debug

[Johnny Billquist]

On 2018-01-18 19:44, Simon Clubley wrote:
> On 2018-01-18, gérard Calliet <gerard.calliet at pia-sofer.fr> wrote:
>>
>> Now customers demand debug. I'm in the beginning of evalution of this
>> facility.
>>
>> For what I know, Adacore didn't give debug (in VMS style), and they say
>> HP didn't "cooperate" on that. I'm wondering if there are been effort
>> for that anywhere.
>>
> 
> What's wrong with simply using gdb or are you saying that it wasn't
> possible for you to build gdb for a VMS target ?

I seriously doubt that gdb will work on VMS, unless someone have ported 
gdb. And this requires a more complex form of porting than just getting 
the compiler to accept the source, and the libraries to be available 
with the right functions.

gdb, but its very nature, requires to understand more of the internal 
plumbing of VMS. Or else how do you expect it to know how to force a 
program to stop at some breakpoint, examine different threads, resume 
execution, install trap vectors for different issues, catch those traps 
and do something, possibly attach to other processes, single step 
code... The list goes on. This is a way different level of porting than 
most other things.

> I never got as far as trying to build gdb for VMS so I don't know
> what the situation is with gdb on VMS.

Like I said, unless someone actually have *ported* it, I'd say this end 
is deader than a dead horse.

   Johnny

-- 
Johnny Billquist                  || "I'm on a bus
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