64 mapprint(struct mapinfo *mip, off_t startoff, off_t len)  in mapprint()  argument
69 		if (startoff < mip->mapoff || startoff >= mip->mapoff +  in mapprint()
70 		    (off_t)mip->maplen) {  in mapprint()
71 			if (maparound(mip, startoff) != 0)  in mapprint()
74 		n = (mip->mapoff + mip->maplen) - startoff;  in mapprint()
77 		WR(mip->start + (startoff - mip->mapoff), n);  in mapprint()
90 maparound(struct mapinfo *mip, off_t offset)  in maparound()  argument
93 	if (mip->start != NULL && munmap(mip->start, mip->maplen) != 0)  in maparound()
96 	mip->mapoff = offset & ~((off_t)TAILMAPLEN - 1);  in maparound()
97 	mip->maplen = TAILMAPLEN;  in maparound()
98 	if ((off_t)mip->maplen > mip->maxoff - mip->mapoff)  in maparound()
99 		mip->maplen = mip->maxoff - mip->mapoff;  in maparound()
100 	if (mip->maplen == 0)  in maparound()
102 	if ((mip->start = mmap(NULL, mip->maplen, PROT_READ, MAP_SHARED,  in maparound()
103 	    mip->fd, mip->mapoff)) == MAP_FAILED)  in maparound()