[Bug ada/62235] New: Storage_Error in the compiler

[Bug ada/62235] New: Storage_Error in the compiler

[porton at narod dot ru]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=62235

            Bug ID: 62235
           Summary: Storage_Error in the compiler
           Product: gcc
           Version: 4.9.1
            Status: UNCONFIRMED
          Severity: major
          Priority: P3
         Component: ada
          Assignee: unassigned at gcc dot gnu.org
          Reporter: porton at narod dot ru

Created attachment 33381
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=33381&action=edit
Apply gnatchop to this file

Apply gnatchop to all.chop (attached).

$ gnatgcc -v
Using built-in specs.
COLLECT_GCC=gnatgcc
COLLECT_LTO_WRAPPER=/usr/lib/gcc/i586-linux-gnu/4.9/lto-wrapper
Target: i586-linux-gnu
Configured with: ../src/configure -v --with-pkgversion='Debian 4.9.1-4'
--with-bugurl=file:///usr/share/doc/gcc-4.9/README.Bugs
--enable-languages=c,c++,java,go,d,fortran,objc,obj-c++ --prefix=/usr
--program-suffix=-4.9 --enable-shared --enable-linker-build-id
--libexecdir=/usr/lib --without-included-gettext --enable-threads=posix
--with-gxx-include-dir=/usr/include/c++/4.9 --libdir=/usr/lib --enable-nls
--with-sysroot=/ --enable-clocale=gnu --enable-libstdcxx-debug
--enable-libstdcxx-time=yes --enable-gnu-unique-object --disable-vtable-verify
--enable-plugin --with-system-zlib --disable-browser-plugin
--enable-java-awt=gtk --enable-gtk-cairo
--with-java-home=/usr/lib/jvm/java-1.5.0-gcj-4.9-i386/jre --enable-java-home
--with-jvm-root-dir=/usr/lib/jvm/java-1.5.0-gcj-4.9-i386
--with-jvm-jar-dir=/usr/lib/jvm-exports/java-1.5.0-gcj-4.9-i386
--with-arch-directory=i386 --with-ecj-jar=/usr/share/java/eclipse-ecj.jar
--enable-objc-gc --enable-targets=all --enable-multiarch --with-arch-32=i586
--with-multilib-list=m32,m64,mx32 --enable-multilib --with-tune=generic
--enable-checking=release --build=i586-linux-gnu --host=i586-linux-gnu
--target=i586-linux-gnu
Thread model: posix
gcc version 4.9.1 (Debian 4.9.1-4)

$ gnatgcc -c -fPIC -g -O2 -gnat2012 -g -O0 -gnato -fstack-check -gnatVa
rdf-raptor-log.adb
+===========================GNAT BUG DETECTED==============================+
| 4.9.1 (i586-linux-gnu) Storage_Error stack overflow or erroneous memory
access|
| Error detected at rdf-auxilary-handled_record.adb:1:1
[rdf-raptor-log.ads:32:4]|
| Please submit a bug report; see http://gcc.gnu.org/bugs.html.            |
| Use a subject line meaningful to you and us to track the bug.            |
| Include the entire contents of this bug box in the report.               |
| Include the exact gcc-4.9 or gnatmake command that you entered.          |
| Also include sources listed below in gnatchop format                     |
| (concatenated together with no headers between files).                   |
+==========================================================================+

Please include these source files with error report
Note that list may not be accurate in some cases,
so please double check that the problem can still
be reproduced with the set of files listed.
Consider also -gnatd.n switch (see debug.adb).

rdf-raptor-log.adb
rdf-raptor-log.ads
rdf-raptor.ads
rdf.ads
rdf-auxilary.ads
rdf-auxilary-handled_record.ads
rdf-raptor-uri.ads
rdf-raptor-world.ads
rdf-auxilary-limited_handled_record.ads
rdf-raptor-iostream.ads
rdf-raptor-term.ads
rdf-raptor-namespaces_stacks.ads
rdf-raptor-namespaces.ads
rdf-raptor-statement.ads
rdf-raptor-memory.ads
rdf-auxilary-handled_record.adb

compilation abandoned

[Bug ada/62235] segmentation fault on Ada 2012 code

[ebotcazou at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=62235

Eric Botcazou <ebotcazou at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
   Last reconfirmed|                            |2014-10-29
                 CC|                            |ebotcazou at gcc dot gnu.org
            Summary|Storage_Error in the        |segmentation fault on Ada
                   |compiler                    |2012 code
     Ever confirmed|0                           |1
           Severity|major                       |normal

--- Comment #1 from Eric Botcazou <ebotcazou at gcc dot gnu.org> ---
Confirmed, but it's not a Storage_Error but a segfault.

[Bug ada/62235] segmentation fault on Ada 2012 code

[porton at narod dot ru]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=62235

--- Comment #2 from Victor Porton <porton at narod dot ru> ---
Confirmed in GNAT GPL 2014.

[Bug ada/62235] segmentation fault on Ada 2012 code

[simon at pushface dot org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=62235

simon at pushface dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |simon at pushface dot org

--- Comment #3 from simon at pushface dot org ---
A workround appears to be to replace

========================================================================
generic
   type Record_Type; -- It should be an untagged record for C compatibility
package RDF.Auxilary.Handled_Record is

   type Access_Type is access Record_Type
      with Convention=>C;
========================================================================
by
========================================================================
generic
   type Record_Type; -- It should be an untagged record for C compatibility
   type Record_Type_Access is access Record_Type; -- should have convention C
package RDF.Auxilary.Handled_Record is

   subtype Access_Type is Record_Type_Access;
========================================================================

(I guess the new formal_incomplete_type_declaration stuff is a bit
fragile)

[Bug ada/62235] segmentation fault on Ada 2012 code

[porton at narod dot ru]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=62235

--- Comment #4 from Victor Porton <porton at narod dot ru> ---
Also does not work with GNAT 4.9.2.

[Bug ada/62235] segmentation fault on Ada 2012 code

[porton at narod dot ru]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=62235

Victor Porton <porton at narod dot ru> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Version|4.9.2                       |5.1.0

--- Comment #5 from Victor Porton <porton at narod dot ru> ---
Not fixed in 5.1.0 (however the exact error message is somehow different).

[Bug ada/62235] segmentation fault on Ada 2012 code

[porton at narod dot ru]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=62235

--- Comment #6 from Victor Porton <porton at narod dot ru> ---
Not fixed in GNAT 5.2.1 20150903 (i586-linux-gnu) (Debian gnat-5 package).
However the exact error message is somehow different.

[Bug ada/62235] segmentation fault on Ada 2012 code

[porton at narod dot ru]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=62235

Victor Porton <porton at narod dot ru> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Version|5.1.0                       |5.2.1
           Severity|normal                      |major

[Bug ada/62235] segmentation fault on Ada 2012 code

[ebotcazou at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=62235

Eric Botcazou <ebotcazou at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Severity|major                       |normal