Problem report: Struct aliasing problem causes Thread_Ready_Chain corruption in 4.6.99.3

[Thomas Doerfler]

Joel,

Attached you will find a patch for "my" solution.

Status:
- It is compile clean and can be started on the mbx8xx BSP.
- It contains my proposed solution to restructure the Chain_Control data
structure.
- It also encapsulates all accesses to chain->first and chain->last into
two macros (_Chain_First(hain_ptr) and _Chain_last(chain_ptr)) to make
it easier to modify the implementation infuture.

- I have NOT reviewed it, so the current state is a proposition.

- I am still not yet sure whether my chosen names for the Chain_Control
structure make sense and will be accepted by the community

So, please everybody: have a look at it and give comments.

wkr,
Thomas.


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