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From: Richard Purdie <richard.purdie@linuxfoundation.org>
To: Patches and discussions about the oe-core layer
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In-Reply-To: <03152273cac84eef23738c5f26c45b082194284f.1306442263.git.nitin.a.kamble@intel.com>
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Date: Fri, 27 May 2011 00:33:42 +0100
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Subject: Re: [bugfix 1/1] mesa-xlib: workaround gcc 4.6.0 ICE
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On Thu, 2011-05-26 at 13:41 -0700, nitin.a.kamble@intel.com wrote:

> ---
>  meta/recipes-graphics/mesa/mesa-xlib_7.10.2.bb |    3 +++
>  1 files changed, 3 insertions(+), 0 deletions(-)
> 
> diff --git a/meta/recipes-graphics/mesa/mesa-xlib_7.10.2.bb b/meta/recipes-graphics/mesa/mesa-xlib_7.10.2.bb
> index b77df2c..051bd72 100644
> --- a/meta/recipes-graphics/mesa/mesa-xlib_7.10.2.bb
> +++ b/meta/recipes-graphics/mesa/mesa-xlib_7.10.2.bb
> @@ -17,3 +17,6 @@ PE = "1"
>  PR = "r0"
>  
>  EXTRA_OECONF += "--with-driver=xlib"
> +
> +# nullify -O2
> +CFLAGS_append += " -O"

I talked about this on IRC but simply put, no way.

The problem is:

a) Arm specific
b) determined now to be armv7 specific
c) gcc version specific

and the fix should reflect this.

So ideally when we select gcc 4.6 in tcmode-default.inc we should add
something there which adds a work around for mesa-xlib.

I've suggested something like:

TARGET_CC_ARCH_arm_pn-mesa-xlib := "${@'${TARGET_CC_ARCH}'.replace('armv7','armv5')}"

which whilst ugly, should do what we need it to.

Cheers,

Richard