[Buildroot] [PATCH v2 4/7] arch: toolchain: Introduce binary format FLAT types.

Thomas Petazzoni thomas.petazzoni at free-electrons.com
Tue Apr 16 10:46:48 UTC 2013

Dear Sonic Zhang,

On Tue, 16 Apr 2013 18:26:22 +0800, Sonic Zhang wrote:

> > Not sure exactly if that's the right solution or not. Peter, you're the
> > one who did the external toolchain wrapper originally. Could you
> > comment on this specific issue?
> >
> The LINUX_MAKE_FLAGS should not include the shared flat specific flags
> "-mno-id-shared-library ...". Your suggestion doesn't work when
> building Linux kernel. We need some ways to remove flags
> "-mno-id-shared-library ..." from the gcc wrapper for the shared flat
> binary format when building Linux kernel.

Hm? If you pass -mno-id-shared-library after -mid-shared-library, it
will be just as if you hadn't passed the option at all. So if the
external toolchain wrapper passes -mid-shared-library, but then the
CFLAGS passed to the kernel override that by passing
-mno-id-shared-library, it will be just as if the external wrapper
hadn't passed -mid-shared-library.

Thomas Petazzoni, Free Electrons
Kernel, drivers, real-time and embedded Linux
development, consulting, training and support.

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