o Set TP using inline assembly to avoid dead code elimination.
o Eliminate _tcb.
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Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=161730
@ -44,8 +44,6 @@ struct tcb {
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register struct tcb *_tp __asm("%r13");
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#define _tcb _tp
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/*
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* The tcb constructors.
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*/
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@ -56,13 +54,13 @@ void _tcb_dtor(struct tcb *);
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static __inline void
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_tcb_set(struct tcb *tcb)
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{
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_tp = tcb;
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__asm __volatile("mov r13 = %0;;" :: "r"(tcb));
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}
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static __inline struct tcb *
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_tcb_get(void)
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{
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return (_tcb);
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return (_tp);
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}
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extern struct pthread *_thr_initial;
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@ -71,7 +69,7 @@ static __inline struct pthread *
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_get_curthread(void)
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{
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if (_thr_initial)
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return (_tcb->tcb_thread);
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return (_tp->tcb_thread);
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return (NULL);
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}
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