[Bug target/9571] [3.3/3.4 regression] [PPC] problems with 'const', -msdata=eabi and sections.

[Bug target/9571] [3.3/3.4 regression] [PPC] problems with 'const', -msdata=eabi and sections.

[pinskia@physics.uc.edu]

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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=9571


pinskia@physics.uc.edu changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
     Ever Confirmed|                            |1
   Last reconfirmed|0000-00-00 00:00:00         |2003-05-26 00:22:30
               date|                            |
            Summary|[PPC] problems with 'const',|[3.3/3.4 regression] [PPC]
                   |-msdata=eabi and sections.  |problems with 'const', -
                   |                            |msdata=eabi and sections.


------- Additional Comments From pinskia@physics.uc.edu  2003-05-26 00:22 -------
see Dara's comment.



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[Bug target/9571] [3.3/3.4 regression] [PPC] problems with 'const', -msdata=eabi and sections.

[pinskia@physics.uc.edu]

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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=9571


pinskia@physics.uc.edu changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Target Milestone|---                         |3.3.1

[Bug target/9571] [3.3/3.4 regression] [PPC] problems with 'const', -msdata=eabi and sections.

[sirl@gcc.gnu.org]

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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=9571



------- Additional Comments From sirl@gcc.gnu.org  2003-06-17 13:52 -------
This isn't a regression IMHO, independent of this bug -msdata=eabi is non-functional in gcc 
since at least gcc-2.95. So even if _this_ bug is fixed for 3.3.1 as a regression, -msdata=eabi 
will still be non-functional! 
If, however, we really want to fix all of the PPC sdata bugs for 3.3.x, I request backporting the 
gcc.dg/ppc-sdata-[12].c testcases to the 3.3 branch as a first step.

[Bug target/9571] [3.3/3.4 regression] [PPC] problems with 'const', -msdata=eabi and sections.

[osv@javad.ru]

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------- Additional Comments From osv@javad.ru  2003-06-17 15:18 -------
Subject: Re:  [3.3/3.4 regression] [PPC] problems with 'const', -msdata=eabi and sections.

"sirl@gcc.gnu.org" <gcc-bugzilla@gcc.gnu.org> writes:
> This isn't a regression IMHO, independent of this bug -msdata=eabi is
> non-functional in gcc since at least gcc-2.95.

This is surprise for me. I use gcc-2.95 with -msdata=eabi all the time for a
few years now and I didn't notice any problems with it yet. On the other hand,
I've immediately noticed the problem in 3.3 at the first try.

[Bug target/9571] [3.3/3.4 regression] [PPC] problems with 'const', -msdata=eabi and sections.

[sirl@gcc.gnu.org]

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------- Additional Comments From sirl@gcc.gnu.org  2003-06-17 15:31 -------
r0 is used as a pointer to sdata2, this is a bug, it should be r2. And since only r2 is initialized in 
the ecrt*.o files, how can this work? Besides that, even if you initialize r0 manually, it is 
practically clobbered in about every function.

[Bug target/9571] [PPC] problems with 'const', -msdata=eabi and sections.

[mmitchel at gcc dot gnu dot org]

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mmitchel at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|[3.3/3.4 regression] [PPC]  |[PPC] problems with 'const',
                   |problems with 'const', -    |-msdata=eabi and sections.
                   |msdata=eabi and sections.   |
   Target Milestone|3.3.1                       |---


------- Additional Comments From mmitchel at gcc dot gnu dot org  2003-07-20 00:52 -------
Based on Franz's comments, this bug is not really a regression at all.

I've therefore removed the regression tags.

[Bug target/9571] [PPC] problems with 'const', -msdata=eabi and sections.

[osv at topconrd dot ru]

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------- Additional Comments From osv at topconrd dot ru  2003-10-14 14:42 -------
> r0 is used as a pointer to sdata2, this is a bug, it should be r2.

No, the %r0 you see is fake. In the object file it's a special relocatable
symbol that is resolved to either 2 (r2) or 13 (r13) by the linker depending on
actual output section the symbol refers to, so there is no bug here.

As there is no bug at this point, the:

> Based on Franz's comments, this bug is not really a regression at all.
> I've therefore removed the regression tags.

is wrong as Franz's comments are wrong.

[Bug target/9571] [PPC] problems with 'const', -msdata=eabi and sections.

[pinskia at gcc dot gnu dot org]

------- Additional Comments From pinskia at gcc dot gnu dot org  2004-01-11 15:59 -------
*** Bug 13646 has been marked as a duplicate of this bug. ***

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |oakad at yahoo dot com


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=9571

[Bug target/9571] [PPC] problems with 'const', -msdata=eabi and sections.

[smeisner at charter dot net]

------- Additional Comments From smeisner at charter dot net  2004-02-26 16:25 -------
I have fixed this bug (and another) against the 3.3.3 release.  I am not a GCC
developer, just a hack that loves GCC.  The fix works for my needs, but most
likely is not how it should be implemented.  I could send a diff or a patch if
the developers are interested in seeing what I did.

-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=9571

[Bug target/9571] [PPC] problems with 'const', -msdata=eabi and sections.

[cvs-commit at gcc dot gnu dot org]

------- Additional Comments From cvs-commit at gcc dot gnu dot org  2004-11-29 06:24 -------
Subject: Bug 9571

CVSROOT:	/cvs/gcc
Module name:	gcc
Changes by:	amodra@gcc.gnu.org	2004-11-29 06:24:31

Modified files:
	gcc            : ChangeLog varasm.c 

Log message:
	PR target/9571
	* varasm.c (default_elf_select_section_1): Pass decl to named_section.

Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/ChangeLog.diff?cvsroot=gcc&r1=2.6616&r2=2.6617
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/varasm.c.diff?cvsroot=gcc&r1=1.461&r2=1.462



-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=9571

[Bug target/9571] [PPC] problems with 'const', -msdata=eabi and sections.

[schwab at suse dot de]

------- Additional Comments From schwab at suse dot de  2004-11-29 10:36 -------
Breaks libgfortran on ia64. 
 
../../../libgfortran/generated/product_c4.c: In function '__product_c4': 
../../../libgfortran/generated/product_c4.c:143: internal compiler error: in 
named_section, at varasm.c:451 
Please submit a full bug report, 
with preprocessed source if appropriate. 
See <URL:http://gcc.gnu.org/bugs.html> for instructions. 
 
The decl is actually a COMPLEX_CST, i.e. not a DECL_P. 
 

-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=9571

[Bug target/9571] [PPC] problems with 'const', -msdata=eabi and sections.

[pinskia at gcc dot gnu dot org]

------- Additional Comments From pinskia at gcc dot gnu dot org  2004-11-29 13:35 -------
Fixed.

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|                            |FIXED
   Target Milestone|---                         |4.0.0


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=9571

[Bug target/9571] [PPC] problems with 'const', -msdata=eabi and sections.

[amodra at bigpond dot net dot au]

------- Additional Comments From amodra at bigpond dot net dot au  2004-11-30 06:44 -------
My patch didn't completely fix this problem, only the wrong .sdata2 attributes.
Incidentally, the followup patch to fix the libgfortran breakage is:

CVSROOT:	/cvs/gcc
Module name:	gcc
Changes by:	amodra@gcc.gnu.org	2004-11-29 11:29:13

Modified files:
	gcc            : ChangeLog varasm.c 

Log message:
	* varasm.c (default_elf_select_section_1): Only pass DECL_P decl
	to named_section.

Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/ChangeLog.diff?cvsroot=gcc&r1=2.6618&r2=2.6619
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/varasm.c.diff?cvsroot=gcc&r1=1.462&r2=1.463



-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|RESOLVED                    |REOPENED
         Resolution|FIXED                       |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=9571

[Bug target/9571] [PPC] problems with 'const', -msdata=eabi and sections.

[pinskia at gcc dot gnu dot org]

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
   Target Milestone|4.0.0                       |---


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=9571

[Bug target/9571] [PPC] problems with 'const', -msdata=eabi and sections.

[pinskia at gcc dot gnu dot org]

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|REOPENED                    |NEW


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=9571

[Bug target/9571] [PPC] problems with 'const', -msdata=eabi and sections.

[dhazeghi@yahoo.com]

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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=9571



------- Additional Comments From dhazeghi@yahoo.com  2003-05-22 01:24 -------
Hello,

I can confirm that this problem is still present on gcc 3.3 branch and mainline (20030521) on an 
i686-linux to powerpc-rtems cross compiler. gcc 3.2.3 did not have this problem, so this is a 
regression. Removing the -msdata=eabi fixes the problem.

Dara



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