[Bug java/43302] New: [Regression] gcc creates "dummy" resources in object files

[Bug java/43302] New: [Regression] gcc creates "dummy" resources in object files

[michele at focuseek dot com]

gcj adds a java resource named ".dummy" to most (all?) the object file it
produces. That resource doesn't appear anywhere in the sources.

This is a problem when I try to link an application made from multiple .o
produced by separate gcj invocations: I get the link-time error:

 multiple definition of `java resource .dummy'

Also this is a regression as gcj 4.2.2 didn't add it and thus the linker didn't
complain.

gcc was built with the following options:

../gcc-4.4.3/configure --prefix="/opt/focuseek-build-fsk" \
            --program-suffix=-fsk \
            --enable-languages=c,c++,java \
            --enable-shared --enable-threads \
            --enable-__cxa_atexit \
            --enable-libgcj-multifile

on a centos 5.4. The md5 for ecj.jar is d7cd6a27c8801e66cbaa964a039ecfdb which,
as of today, is what contrib/download_ecj retrieves.

I'm aware of bug 42143 but I'm not able to say whether this is the same bug or
another one.

I will attach a test case as soon as possible.


-- 
           Summary: [Regression] gcc creates "dummy" resources in object
                    files
           Product: gcc
           Version: 4.4.3
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: java
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: michele at focuseek dot com
 GCC build triplet: i686-pc-linux-gnu
  GCC host triplet: i686-pc-linux-gnu
GCC target triplet: i686-pc-linux-gnu


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43302

[Bug java/43302] [Regression] gcc creates "dummy" resources in object files

[michele at focuseek dot com]

------- Comment #1 from michele at focuseek dot com  2010-03-09 09:25 -------
Created an attachment (id=20053)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=20053&action=view)
A simple test exhibiting the .dummy resources problem

As I said this works with gcc 4.2.2


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43302

[Bug java/43302] [Regression] gcc creates "dummy" resources in object files

[michele at focuseek dot com]

------- Comment #2 from michele at focuseek dot com  2010-03-10 08:30 -------
Experimenting with -save-temps I noticed that the .dummy resource is in the
.jar generated by ecj which seems to point to it as the main suspect.


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43302

[Bug java/43302] [Regression] gcc creates "dummy" resources in object files

[glarkin at FreeBSD dot org]

------- Comment #3 from glarkin at FreeBSD dot org  2010-05-03 18:37 -------
(In reply to comment #2)
> Experimenting with -save-temps I noticed that the .dummy resource is in the
> .jar generated by ecj which seems to point to it as the main suspect.
> 

I believe that's correct - please see:
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42143#c7

Thank you,
Greg Larkin


-- 

glarkin at FreeBSD dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |glarkin at FreeBSD dot org


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43302

[Bug java/43302] [Regression] gcc creates "dummy" resources in object files

[steven at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43302

Steven Bosscher <steven at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |RESOLVED
                 CC|                            |steven at gcc dot gnu.org
         Resolution|                            |INVALID

--- Comment #4 from Steven Bosscher <steven at gcc dot gnu.org> 2012-11-09 23:21:02 UTC ---
If it comes from ecj, it's not a gcc bug.