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* [Bug ada/17307] New: Bug box in Gigi, code=116, 'Unrestricted_Access of a protected subprogram
@ 2004-09-03 16:49 ludovic dot brenta at insalien dot org
2004-10-12 21:59 ` [Bug ada/17307] " pinskia at gcc dot gnu dot org
` (3 more replies)
0 siblings, 4 replies; 5+ messages in thread
From: ludovic dot brenta at insalien dot org @ 2004-09-03 16:49 UTC (permalink / raw)
To: gcc-bugs
Reported to Debian (#269775) by Daniel Simon; I edited the test case slightly.
with Ada.Interrupts.Names;
procedure Test_269775 is
pragma Unreserve_All_Interrupts;
protected type Bla is
procedure Sigint;
end Bla;
protected body Bla is
procedure Sigint is
begin
null;
end Sigint;
end Bla;
X : Bla;
begin
Ada.Interrupts.Attach_Handler
(New_Handler => X.Sigint'Unrestricted_Access,
Interrupt => Ada.Interrupts.Names.SIGINT);
end Test_269775;
$ gcc -c test_269775.ads
+===========================GNAT BUG DETECTED==============================+
| 3.15p (20020523) (i686-pc-linux-gnu) Gigi abort, Code=116 |
| Error detected at test_269775.adb:18:22 |
| Please submit bug report by email to report@gnat.com. |
| Use a subject line meaningful to you and us to track the bug. |
| (include your customer number #nnn in the subject line). |
| Include the entire contents of this bug box in the report. |
| Include the exact gcc or gnatmake command that you entered. |
| Also include sources listed below in gnatchop format |
| (concatenated together with no headers between files). |
| (use plain ASCII or MIME attachment, or FTP to your customer directory). |
| See README.GNATPRO for full info on procedure for submitting bugs. |
+==========================================================================+
Please include these source files with error report
test_269775.adb
compilation abandoned
gnatmake: "test_269775.adb" compilation error
I have confirmed this bug in Debian 3.15p-11, 3.4.0-1 and the binary
distribution of 3.15p from Ada Core. The bug box is always the same.
I also tried to replace 'Unrestricted_Access with 'Unchecked_Access
and 'Access.
With 'Access, the program compiles but raises Program_Error with the
message "Trying to overwrite a static Interrupt Handler with a dynamic
Handler". I think this is due to Linux; on a bare-board or real-time
kernel, this probably works.
With 'Unchecked_Access, the compiler says "attribute
"Unchecked_Access" cannot be applied to protected operation". This is
correct as per RM 13.10(2, 5).
--
Ludovic Brenta.
--
Summary: Bug box in Gigi, code=116, 'Unrestricted_Access of a
protected subprogram
Product: gcc
Version: 3.4.0
Status: UNCONFIRMED
Severity: normal
Priority: P2
Component: ada
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: ludovic dot brenta at insalien dot org
CC: gcc-bugs at gcc dot gnu dot org
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17307
^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug ada/17307] Bug box in Gigi, code=116, 'Unrestricted_Access of a protected subprogram
2004-09-03 16:49 [Bug ada/17307] New: Bug box in Gigi, code=116, 'Unrestricted_Access of a protected subprogram ludovic dot brenta at insalien dot org
@ 2004-10-12 21:59 ` pinskia at gcc dot gnu dot org
2005-01-11 2:47 ` pinskia at gcc dot gnu dot org
` (2 subsequent siblings)
3 siblings, 0 replies; 5+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2004-10-12 21:59 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From pinskia at gcc dot gnu dot org 2004-10-12 21:59 -------
Confirmed on the mainline:
+===========================GNAT BUG
DETECTED==============================+
| 4.0.0 20041012 (experimental) (powerpc-apple-darwin7.4.1) GCC error: |
| in gnat_to_gnu_entity, at /ada/decl.c:286 |
| Error detected at test_269775.adb:18:22 |
| Please submit a bug report; see http://gcc.gnu.org/bugs.html. |
| Include the entire contents of this bug box in the report. |
| Include the exact gcc or gnatmake command that you entered. |
| Also include sources listed below in gnatchop format |
| (concatenated together with no headers between files). |
+==============================================================
============+
--
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Ever Confirmed| |1
Keywords| |ice-on-valid-code
Last reconfirmed|0000-00-00 00:00:00 |2004-10-12 21:59:06
date| |
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17307
^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug ada/17307] Bug box in Gigi, code=116, 'Unrestricted_Access of a protected subprogram
2004-09-03 16:49 [Bug ada/17307] New: Bug box in Gigi, code=116, 'Unrestricted_Access of a protected subprogram ludovic dot brenta at insalien dot org
2004-10-12 21:59 ` [Bug ada/17307] " pinskia at gcc dot gnu dot org
@ 2005-01-11 2:47 ` pinskia at gcc dot gnu dot org
2005-01-12 10:41 ` charlet at adacore dot com
2005-01-17 13:54 ` charlet at gcc dot gnu dot org
3 siblings, 0 replies; 5+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2005-01-11 2:47 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From pinskia at gcc dot gnu dot org 2005-01-11 02:47 -------
Hmm, now I get on the mainline:
test_269775.adb:18:23: non-local pointer cannot point to local object
So this rejects valid now?
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17307
^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug ada/17307] Bug box in Gigi, code=116, 'Unrestricted_Access of a protected subprogram
2004-09-03 16:49 [Bug ada/17307] New: Bug box in Gigi, code=116, 'Unrestricted_Access of a protected subprogram ludovic dot brenta at insalien dot org
2004-10-12 21:59 ` [Bug ada/17307] " pinskia at gcc dot gnu dot org
2005-01-11 2:47 ` pinskia at gcc dot gnu dot org
@ 2005-01-12 10:41 ` charlet at adacore dot com
2005-01-17 13:54 ` charlet at gcc dot gnu dot org
3 siblings, 0 replies; 5+ messages in thread
From: charlet at adacore dot com @ 2005-01-12 10:41 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From charlet at adacore dot com 2005-01-12 10:41 -------
Subject: Re: Bug box in Gigi, code=116, 'Unrestricted_Access of a protected subprogram
> Hmm, now I get on the mainline:
> test_269775.adb:18:23: non-local pointer cannot point to local object
> So this rejects valid now?
Not really, since 'Unrestricted_Access is a GNAT specific attribute,
we can give it any semantic we like.
In this particular case, I do not think we want nor claim to support
access to nested protected procedure.
Instead, the code should be fixed to be valid Ada 95 and use 'Access
on a protected object declared at library level (= in a package).
Arno
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17307
^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug ada/17307] Bug box in Gigi, code=116, 'Unrestricted_Access of a protected subprogram
2004-09-03 16:49 [Bug ada/17307] New: Bug box in Gigi, code=116, 'Unrestricted_Access of a protected subprogram ludovic dot brenta at insalien dot org
` (2 preceding siblings ...)
2005-01-12 10:41 ` charlet at adacore dot com
@ 2005-01-17 13:54 ` charlet at gcc dot gnu dot org
3 siblings, 0 replies; 5+ messages in thread
From: charlet at gcc dot gnu dot org @ 2005-01-17 13:54 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From charlet at gcc dot gnu dot org 2005-01-17 13:54 -------
Bug box fixed on mainline, so closing.
Arno
--
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
Resolution| |FIXED
Target Milestone|--- |4.0.0
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17307
^ permalink raw reply [flat|nested] 5+ messages in thread
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-- links below jump to the message on this page --
2004-09-03 16:49 [Bug ada/17307] New: Bug box in Gigi, code=116, 'Unrestricted_Access of a protected subprogram ludovic dot brenta at insalien dot org
2004-10-12 21:59 ` [Bug ada/17307] " pinskia at gcc dot gnu dot org
2005-01-11 2:47 ` pinskia at gcc dot gnu dot org
2005-01-12 10:41 ` charlet at adacore dot com
2005-01-17 13:54 ` charlet at gcc dot gnu dot org
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