Re: Building Kernel with -O0

From: Adrian Bunk
Date: Tue Sep 09 2008 - 12:06:45 EST


On Thu, Sep 04, 2008 at 10:50:53AM -0700, Keith A. Prickett wrote:
>...
> It seems building with optimization
> level 0 should be a natural thing for kernel driver developers to do for
> debugging purposes.
>
> In summary: I want to compile with optimizations off and the compile is
> failing now when I try this. How can this be resolved?
>...

There are several places in the kernel where we e.g. rely on gcc
removing dead code, and otherwise the linking of the kernel fails.

Compiling with -O0 never worked, and is not likely to ever work.

> Thanks in advance,
> Keith Prickett

cu
Adrian

--

"Is there not promise of rain?" Ling Tan asked suddenly out
of the darkness. There had been need of rain for many days.
"Only a promise," Lao Er said.
Pearl S. Buck - Dragon Seed

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