On Tue, 2013-02-19 at 22:17 -0500, Nicolas Pitre wrote: > > > +$(obj)/bswapsdi2.o: $(obj)/../../../../arch/$(SRCARCH)/lib/bswapsdi2.o > > + $(call cmd,shipped) > > + > > I don't think you can get away with this. The decompressor code is > compiled with -fpic and the main kernel is not. Most toolchains do mark > object files with some flags to prevent the link of incompatible objects > together (normally pic and non pic objects are not compatible even if in > this very simple case that would not matter). Maybe you are able to > link zImage successfully simply because no references to __bswap* needed > to be resolved and therefore the linker didn't need to search/include > that object?
This, and the issue with -Os vs. -O2, make me inclined to suggest that
we should just provide an asm version of these functions instead of
using the compiler.
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David Woodhouse Open Source Technology Centre
[email protected] Intel Corporation
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