On 06/16/2010 01:14 AM, Paul E. McKenney wrote:
Create urcu/arch_unknown.h and urcu/uatomic_arch_unknown.h, which
contain only #error statements and explanatory comments. This forces
build failures on unrecognized architectures in preference to trying
to guess at what operations might be safe on such architectures.
One other semi-feasible alternative is to use hashed arrays of locks
that are acquired with signals disabled. However, this seems a bit
too ornate, especially for architectures for which the gcc __sync_
primitives work correctly.
ia64 is one.
Paolo
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