Differential D29624 Diff 86948 lib/libthr/arch/arm/include/pthread_md.h

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Show First 20 Lines • Show All 48 Lines • ▼ Show 20 Lines	struct tcb {
void tcb_dtv; / required by rtld */		void tcb_dtv; / required by rtld */
struct pthread tcb_thread; / our hook */		struct pthread tcb_thread; / our hook */
};		};

/* Called from the thread to set its private data. */		/* Called from the thread to set its private data. */
static __inline void		static __inline void
_tcb_set(struct tcb *tcb)		_tcb_set(struct tcb *tcb)
{		{
#ifdef ARM_TP_ADDRESS
((struct tcb )ARM_TP_ADDRESS) = tcb; / avoids a system call */
#else
sysarch(ARM_SET_TP, tcb);		sysarch(ARM_SET_TP, tcb);
#endif
}		}

/*		/*
* Get the current tcb.		* Get the current tcb.
*/		*/
static __inline struct tcb *		static __inline struct tcb *
_tcb_get(void)		_tcb_get(void)
{		{
#ifdef ARM_TP_ADDRESS
return (((struct tcb *)ARM_TP_ADDRESS));
#else
struct tcb *tcb;		struct tcb *tcb;

__asm __volatile("mrc p15, 0, %0, c13, c0, 3" \		__asm __volatile("mrc p15, 0, %0, c13, c0, 3" \
: "=r" (tcb));		: "=r" (tcb));
return (tcb);		return (tcb);
#endif
}		}

static __inline struct pthread *		static __inline struct pthread *
_get_curthread(void)		_get_curthread(void)
{		{
if (_thr_initial)		if (_thr_initial)
return (_tcb_get()->tcb_thread);		return (_tcb_get()->tcb_thread);
return (NULL);		return (NULL);
}		}

#endif /* _PTHREAD_MD_H_ */		#endif /* _PTHREAD_MD_H_ */