copyright assignment papers

copyright assignment papers

[Adam Megacz]

Hey, I'd like to submit some patches to gcj (gcc java frontend) as
well as libjava (gcc java companion library). Could you please send me
the requisite paperwork so I can assign my copyrights to the FSF?

Also, I am developing some other software (totally unrelated to GCC)
and releasing it under the GPL, however, I must retain copyright on
that software. Anyways, I just want to make sure that the paperwork
makes it clear that only my contributions to FSF-owned projects will
be reassigned.

Thanks!

  - a

Re: copyright assignment papers

[Alexandre Petit-Bianco]

Adam Megacz <adam@megacz.com> writes:

> Hey, I'd like to submit some patches to gcj (gcc java frontend) as
> well as libjava (gcc java companion library).

Excellent!

> Could you please send me the requisite paperwork so I can assign my
> copyrights to the FSF?

I think this should be what you're looking for. Gerald, is this still
valid:

  http://gcc.gnu.org/ml/gcc/2001-10/msg00593.html

./A

copyright assignment papers

[Adam Megacz]

Hey, I'd like to submit some patches to gcj (gcc java frontend) as
well as libjava (gcc java companion library). Could you please send me
the requisite paperwork so I can assign my copyrights to the FSF?

Also, I am developing some other software (totally unrelated to GCC)
and releasing it under the GPL, however, I must retain copyright on
that software. Anyways, I just want to make sure that the paperwork
makes it clear that only my contributions to FSF-owned projects will
be reassigned.

Thanks!

  - a

Re: copyright assignment papers

[Alexandre Petit-Bianco]

Adam Megacz <adam@megacz.com> writes:

> Hey, I'd like to submit some patches to gcj (gcc java frontend) as
> well as libjava (gcc java companion library).

Excellent!

> Could you please send me the requisite paperwork so I can assign my
> copyrights to the FSF?

I think this should be what you're looking for. Gerald, is this still
valid:

  http://gcc.gnu.org/ml/gcc/2001-10/msg00593.html

./A

Re: copyright assignment papers

[Gerald Pfeifer]

On 26 Nov 2001, Alexandre Petit-Bianco wrote:
>> Could you please send me the requisite paperwork so I can assign my
>> copyrights to the FSF?
> I think this should be what you're looking for. Gerald, is this still
> valid:
>
>   http://gcc.gnu.org/ml/gcc/2001-10/msg00593.html

Yes, as far as I know.

(Sorry for the delay, I've been offline last week.)

Gerald
-- 
Gerald "Jerry" pfeifer@dbai.tuwien.ac.at http://www.dbai.tuwien.ac.at/~pfeifer/

How are case statements laid out?

[Peter Barada]

I noticed that the case statement for 68k/Coldfire generates code
along the lines of:

	.set .LI87,.+2
	move.w .L87-.LI87.b(%pc,%d0.l*2),%d0
	ext.l %d0
	jmp %pc@(2,%d0:l)
	.align 2
	.swbeg &10
.L87:
	.word .L64-.L87
	.word .L65-.L87
	.word .L64-.L87

This allows a displacement between .L87 and the start of the case body
to be up to 32767 bytes away(forward or backward since %d0 is
*sign-extended*).  If the code is changed to: 

	.set .LI87,.+2
	moveq.l #0,%d0
	move.w .L87-.LI87.b(%pc,%d0.l*2),%d0
	jmp %pc@(2,%d0:l)
	.align 2
	.swbeg &10
.L87:
	.word .L64-.L87
	.word .L65-.L87
	.word .L64-.L87


Then the displacement can go *forward* up to 65535 bytes away(since
%d0 is *zero-extended*).  My question is whether or not the compiler
*always* places the switch selector before the case body?

-- 
Peter Barada                                   Peter.Barada@motorola.com
Wizard                                         781-852-2768 (direct)
WaveMark Solutions(wholly owned by Motorola)   781-270-0193 (fax)

Re: How are case statements laid out?

[Richard Henderson]

On Mon, Dec 03, 2001 at 12:51:59PM -0500, Peter Barada wrote:
> My question is whether or not the compiler
> *always* places the switch selector before the case body?

No, it doesn't.


r~

Re: How are case statements laid out?

[Peter Barada]

>> My question is whether or not the compiler
>> *always* places the switch selector before the case body?
>
>No, it doesn't.

Do you have an example?

-- 
Peter Barada                                   Peter.Barada@motorola.com
Wizard                                         781-852-2768 (direct)
WaveMark Solutions(wholly owned by Motorola)   781-270-0193 (fax)

Re: How are case statements laid out?

[Richard Henderson]

On Tue, Dec 04, 2001 at 10:11:22AM -0500, Peter Barada wrote:
> Do you have an example?

Well, the easiest example is 

	gcc -O2 -S -fno-reorder-blocks z.c

	int foo(int i)
	{
	  if (i < 0)
	    {
	    label:
	      return -1;
	    }

	  switch (i)
	    {
	    case 0:
	      return 0;
	    case 1:
	      return 1;
	    case 2:
	      return 2;
	    case 3:
	      return 3;
	    case 4:
	      return 4;
	    case 5:
	      goto label;
	    }
	  return 6;
	}

as the goto will be folded into the table jump directly.

But apart from that -freorder-blocks will rearrange everything
as it sees fit.


r~