252 				int offset = lp->args[0];  in logdump()  local
257 				    offset, offset + len - 1,  in logdump()
259 				if (offset > oldlen)  in logdump()
261 				else if (offset + len > oldlen)  in logdump()
263 				if ((badoff >= offset || badoff >=oldlen) &&  in logdump()
264 				    badoff < offset + len)  in logdump()
354 check_buffers(unsigned offset, unsigned size)  in check_buffers()  argument
362 	if (memcmp(good_buf + offset, temp_buf, size) != 0) {  in check_buffers()
364 		    offset, size);  in check_buffers()
367 			c = good_buf[offset];  in check_buffers()
372 					prt("0x%5x\t0x%04x\t0x%04x", offset,  in check_buffers()
373 					    short_at(&good_buf[offset]), bad);  in check_buffers()
374 					op = temp_buf[offset & 1 ? i+1 : i];  in check_buffers()
377 				badoff = offset;  in check_buffers()
379 			offset++;  in check_buffers()
434 doread(off_t offset, off_t size)  in doread()  argument
439 	offset -= offset % readbdy;  in doread()
443 		log4(OP_SKIPPED, OP_READ, offset, size);  in doread()
446 	if (size + offset > file_size) {  in doread()
449 		log4(OP_SKIPPED, OP_READ, offset, size);  in doread()
453 	log4(OP_READ, offset, size, 0);  in doread()
462 			 (offset + size > monitorstart &&  in doread()
463 			  (monitorend == -1 || offset <= monitorend))))))  in doread()
465 		    offset, offset + size - 1, size);  in doread()
466 	ret = lseek(fd, (off_t)offset, SEEK_SET);  in doread()
480 	check_buffers(offset, size);  in doread()
485 check_eofpage(const char *s, unsigned offset, char *p, int size)  in check_eofpage()  argument
489 	if (offset + size <= (file_size & ~page_mask))  in check_eofpage()
497 	last_page = ((uintptr_t)p + (offset & page_mask) + size) & ~page_mask;  in check_eofpage()
512 domapread(unsigned offset, unsigned size)  in domapread()  argument
518 	offset -= offset % readbdy;  in domapread()
522 		log4(OP_SKIPPED, OP_MAPREAD, offset, size);  in domapread()
525 	if (size + offset > file_size) {  in domapread()
528 		log4(OP_SKIPPED, OP_MAPREAD, offset, size);  in domapread()
532 	log4(OP_MAPREAD, offset, size, 0);  in domapread()
541 			 (offset + size > monitorstart &&  in domapread()
542 			  (monitorend == -1 || offset <= monitorend))))))  in domapread()
544 		    offset, offset + size - 1, size);  in domapread()
546 	pg_offset = offset & page_mask;  in domapread()
550 			      (off_t)(offset - pg_offset))) == (char *)-1) {  in domapread()
556 	check_eofpage("Read", offset, p, size);  in domapread()
563 	check_buffers(offset, size);  in domapread()
568 gendata(unsigned offset, unsigned size)  in gendata()  argument
571 		good_buf[offset] = testcalls % 256;   in gendata()
572 		if (offset % 2)  in gendata()
573 			good_buf[offset] += original_buf[offset];  in gendata()
574 		offset++;  in gendata()
580 dowrite(unsigned offset, unsigned size)  in dowrite()  argument
585 	offset -= offset % writebdy;  in dowrite()
589 		log4(OP_SKIPPED, OP_WRITE, offset, size);  in dowrite()
593 	log4(OP_WRITE, offset, size, file_size);  in dowrite()
595 	gendata(offset, size);  in dowrite()
596 	if (file_size < offset + size) {  in dowrite()
597 		if (file_size < offset)  in dowrite()
598 			memset(good_buf + file_size, '\0', offset - file_size);  in dowrite()
599 		file_size = offset + size;  in dowrite()
613 			 (offset + size > monitorstart &&  in dowrite()
614 			  (monitorend == -1 || offset <= monitorend))))))  in dowrite()
616 		    offset, offset + size - 1, size);  in dowrite()
617 	ret = lseek(fd, (off_t)offset, SEEK_SET);  in dowrite()
622 	iret = write(fd, good_buf + offset, size);  in dowrite()
635 domapwrite(unsigned offset, unsigned size)  in domapwrite()  argument
642 	offset -= offset % writebdy;  in domapwrite()
646 		log4(OP_SKIPPED, OP_MAPWRITE, offset, size);  in domapwrite()
651 	log4(OP_MAPWRITE, offset, size, 0);  in domapwrite()
653 	gendata(offset, size);  in domapwrite()
654 	if (file_size < offset + size) {  in domapwrite()
655 		if (file_size < offset)  in domapwrite()
656 			memset(good_buf + file_size, '\0', offset - file_size);  in domapwrite()
657 		file_size = offset + size;  in domapwrite()
671 			 (offset + size > monitorstart &&  in domapwrite()
672 			  (monitorend == -1 || offset <= monitorend))))))  in domapwrite()
674 		    offset, offset + size - 1, size);  in domapwrite()
682 	pg_offset = offset & page_mask;  in domapwrite()
687 			      (off_t)(offset - pg_offset))) == MAP_FAILED) {  in domapwrite()
691 	memcpy(p + pg_offset, good_buf + offset, size);  in domapwrite()
697 	check_eofpage("Write", offset, p, size);  in domapwrite()
818 	off_t		offset;  in test()  local
859 			offset = random();  in test()
861 				offset %= maxfilelen;  in test()
862 				if (offset + size > maxfilelen)  in test()
863 					size = maxfilelen - offset;  in test()
865 					domapwrite(offset, size);  in test()
867 					dowrite(offset, size);  in test()
870 					offset %= file_size;  in test()
872 					offset = 0;  in test()
873 				if (offset + size > file_size)  in test()
874 					size = file_size - offset;  in test()
876 					domapread(offset, size);  in test()
878 					doread(offset, size);  in test()