RFC ARM: uncompress.h multi-platform enablement
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Cover letter [RFC PATCH 0/3] ARM: uncompress.h multi-platform enablement
Quoted 7 lines · Tim Bird
My main issue is to avoid requiring the loading of drivers and features that are not required for a platform, if the platform does not need it (or the developer chooses to omit it). I may have mis-read this thread, but it sounded like the uncompress code was going to be moved to a common area and not be configurable.
The suggestion was to move it into a different location, but you still would only have one version of it, even for a multiplatform kernel, so no code growth there.
Right now, a multiplatform kernel has no way of debugging the decompressor using console output, so it's actually /smaller/ than a single-platform kernel, but also less capable.
Stephen's patches are a way to bring that feature back for platforms that are converted to multiplatform, but such a kernel would still only work on a single platform, even if it has all the actual kernel code enabled to support others.
Arnd