Re: [PATCH][PPC32] Makefile cleanups and gcc-3.4+binutils-2.14 c

From: Giuliano Pochini (pochini_at_shiny.it)
Date: 07/30/04

  • Next message: Adrian Bunk: "Re: Compile error in 2.6.8-rc2-mm1 - rivafb related" 
    Date:	Fri, 30 Jul 2004 20:59:01 +0200
To: Tom Rini <trini@kernel.crashing.org>

    On Thu, 29 Jul 2004 07:43:47 -0700
    Tom Rini <trini@kernel.crashing.org> wrote:

    > > I had no time to do a lot of testing, but it seems that binutils 2.15 +
    > > gcc 3.3.3 is a bad one too. I didn't try to compile the kernel (which
    > > may also break), but at least I couldn't compile gcc 3.4.1 with the
    > > above combination. It seems that as doesn't get the -mxxx parameter
    > > required to compile altivec stuff. Hacking the Makefile to make it
    > > pass -Wa,-m7455 helped a little, but it eventually failed in another
    > > weird way. I hadn't time to investigate further, sorry.
    >
    > Stock gcc-3.3.3 or from the hammer branch ?

    Stock.

    > There is, I think, a second
    > problem that was left out. The problem with gcc-3.4 + binutils-2.14 is
    > that -many gets passed, which zeros out previous flags. -many is fine
    > in binutils-2.15 (and 2.13 and 2.12 and 2.12.1 it seems), but 2.15 does
    > require -maltivec to be passed in order to handle altivec instructions.
    > Getting this right was part of the cleanup that conflicted with the
    > mpc52xx changes (Andrew: trying to take care of getting this into Linus'
    > tree now).

    Ah, ok, this is useful to know. Btw, I compiled linux 2.6.7 with gcc 3.4.1
    and binutils 2.15 without problems. 

    --
Giuliano.
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  • Next message: Adrian Bunk: "Re: Compile error in 2.6.8-rc2-mm1 - rivafb related"