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From: =?iso-8859-15?Q?Yannick_Duch=EAne_=28Hibou57=29?=
 <yannick_duchene@yahoo.fr>
Newsgroups: comp.lang.ada
Subject: Re: SPARK
Date: Thu, 20 May 2010 08:58:02 +0200
Organization: Ada At Home
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Date: 2010-05-20T08:58:02+02:00
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Le Thu, 20 May 2010 08:21:43 +0200, Simon Wright <simon@pushface.org> a =
 =

=E9crit:
> Yes; the traceback is
>
> #0  0x00007fff82610886 in __kill ()
> #1  0x00007fff826b0eae in abort ()
> #2  0x00000001000837ce in uw_init_context_1 ()
> #3  0x00000001000838e8 in _Unwind_Backtrace ()
> #4  0x00000001000c8279 in __gnat_backtrace ()
> #5  0x00000001000c42dd in system__traceback__call_chain ()
> #6  0x0000000100088259 in ada__exceptions__call_chain ()
> #7  0x0000000100087a61 in  =

> ada__exceptions__exception_propagation__propagate_exceptionXn ()
> #8  0x0000000100088548 in __gnat_raise_nodefer_with_msg ()
> #9  0x00000001000885aa in __gnat_raise_exception ()
> #10 0x00000001000b5b87 in system__file_io__open ()
> #11 0x000000010009744e in ada__text_io__open ()
> #12 0x0000000100023f2f in spark_io__open ()
> #13 0x000000010002b7be in sparkmake__openorcreatefile.1909 ()
> #14 0x000000010002c083 in _ada_sparkmake ()
>
> so I probaby had some missing file. If the SPARK system itself s
> excetion-free, and the RTS makes no use of exceptions internally, mayb=
e
> this is worth pursuing .. adds to the difficulties, though.
SPARK_IO is indeed implemented on top of Ada.Text_IO, which is not under=
  =

control of the SPARK application.

Still wonder why Text_IO fails here, and surprisingly right at startup. =
 =

Requires investigations.

Did you submit this issue to Praxis ? Mac is somewhat popular, pretty su=
re  =

they will be interested in the case.