Differential D21926 Diff 63071 head/lib/libthr/arch/riscv/include/pthread_md.h

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Show First 20 Lines • Show All 56 Lines • ▼ Show 20 Lines	struct tcb {
struct pthread *tcb_thread;		struct pthread *tcb_thread;
};		};

/* 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)
{		{

__asm __volatile("mv tp, %0" :: "r"((uint8_t *)tcb + TP_OFFSET));		__asm __volatile("addi tp, %0, %1" :: "r"(tcb), "I"(TP_OFFSET));
}		}

/*		/*
* Get the current tcb.		* Get the current tcb.
*/		*/
static __inline struct tcb *		static __inline struct tcb *
_tcb_get(void)		_tcb_get(void)
{		{
register uint8_t *_tp;		struct tcb *_tcb;

__asm __volatile("mv %0, tp" : "=r"(_tp));		__asm __volatile("addi %0, tp, %1" : "=r"(_tcb) : "I"(-TP_OFFSET));

return ((struct tcb *)(_tp - TP_OFFSET));		return (_tcb);
}		}

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_ */