gnat with HPUX 10.20

gnat with HPUX 10.20

[Joerg Huber]

Enviroment

OS   : HPUX 10.20
gnat : Version 3.09 for HPUX 10.10

Consider the following Ada code:

SPEC : delay_test.ads

package DELAY_TEST is
  procedure DO_DELAY;
end DELAY_TEST;


BODY : delay_test.adb

package body DELAY_TEST is
  procedure DO_DELAY is
  begin
    delay 0.0;
  end DO_DELAY;
end DELAY_TEST;


EXECUTABLE : adi_test_delay.adb

with DELAY_TEST;
with TEXT_IO;

procedure ADI_TEST_DELAY is
begin 
  TEXT_IO.PUT_LINE ("Test ADI_TEST_DELAY");
end ADI_TEST_DELAY;

Compile and link with the command :

gnatmake adi_test_delay

If I run the executable adi_test_delay it crashes badly (it logs me out 
of the system).
If I take TEXT_IO out it works fine.

What is the problem?
Is there a gnat version (or patch) for HPUX 10.20, and if so, where can 
I get it?

Thanks for your help.


Joerg Huber
Command and Control Information Systems 
ADI Limited, Systems Group
Perth, Australia

mailto:jorg@ccis.adisys.com.au

Re: gnat with HPUX 10.20

[Ronald Cole]

Joerg Huber <jorg@ccis.adisys.com.au> writes:
> Compile and link with the command :
> 
> gnatmake adi_test_delay
> 
> If I run the executable adi_test_delay it crashes badly (it logs me out 
> of the system).
> If I take TEXT_IO out it works fine.

Just hazarding a guess (a practice I learned from Dewar), but some of
the patches to gcc-2.7.2 distributed with gnat-3.09 break optimization
for the HPPA.

> What is the problem?

You haven't purchased support from ACT.

> Is there a gnat version (or patch) for HPUX 10.20, and if so, where can 
> I get it?

You can try gnat-3.10p, but some of my initial testing shows that the
patch file distributed with gnat-3.10p still suffers from broken
optimization on this architecture.  If those patches are integrated in
gcc-2.8 (as the patch file claims), then perhaps optimization will be
better when it's finally released and a gnat based on it is made
available.

Otherwise, try all optimization options on each source file and use
the resulting binary that works best.

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