target/arc: Make LF be cleared on usermode interrupt #48 #214
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Since an interrupt requires LF to be cleared and there is no hook for usermode interrupts, we save/validate current thread id to detect preemption and clear LF. This only needs to be done where it is relevant for LF (llock/scond variant helpers). Signed-off-by: BrunoASMauricio <[email protected]>
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Since an interrupt requires LF to be cleared and there is no hook for usermode interrupts, we save/validate current thread id to detect preemption and clear LF. This only needs to be done where it is relevant for LF (llock/scond variant helpers).
P.S. This is a patch for an old issue. We can safely push it.