我正在MacOS上安装xv6，但遇到一些问题。
我尝试了以下步骤：
1。安装Xcode
2.下载xv6
3.安装MacPorts
4.安装remu
5. sudo端口安装i386-elf-gcc gdb
但是，当我输入“ make qemu clean”时，结果是错误的。
/var/folders/xw/9n848h8s4cqd5lkzvg_wk1k00000gn/T//ccv8SWpV.s:6:2: error: unknown directive
.type strcpy, @function
^
/var/folders/xw/9n848h8s4cqd5lkzvg_wk1k00000gn/T//ccv8SWpV.s:13:2: error: instruction requires: Not 64-bit mode
pushl %ebp
^
/var/folders/xw/9n848h8s4cqd5lkzvg_wk1k00000gn/T//ccv8SWpV.s:20:2: error: instruction requires: Not 64-bit mode
pushl %ebx
^
/var/folders/xw/9n848h8s4cqd5lkzvg_wk1k00000gn/T//ccv8SWpV.s:37:2: error: instruction requires: Not 64-bit mode
popl %ebx
^
/var/folders/xw/9n848h8s4cqd5lkzvg_wk1k00000gn/T//ccv8SWpV.s:39:2: error: instruction requires: Not 64-bit mode
popl %ebp
^
/var/folders/xw/9n848h8s4cqd5lkzvg_wk1k00000gn/T//ccv8SWpV.s:46:2: error: unknown directive
.size strcpy, .-strcpy
^
/var/folders/xw/9n848h8s4cqd5lkzvg_wk1k00000gn/T//ccv8SWpV.s:49:2: error: unknown directive
.type strcmp, @function
^
/var/folders/xw/9n848h8s4cqd5lkzvg_wk1k00000gn/T//ccv8SWpV.s:55:2: error: instruction requires: Not 64-bit mode
pushl %ebp
^
/var/folders/xw/9n848h8s4cqd5lkzvg_wk1k00000gn/T//ccv8SWpV.s:62:2: error: instruction requires: Not 64-bit mode
pushl %esi
^
/var/folders/xw/9n848h8s4cqd5lkzvg_wk1k00000gn/T//ccv8SWpV.s:63:2: error: instruction requires: Not 64-bit mode
pushl %ebx
^
/var/folders/xw/9n848h8s4cqd5lkzvg_wk1k00000gn/T//ccv8SWpV.s:101:2: error: instruction requires: Not 64-bit mode
popl %ebx
^
/var/folders/xw/9n848h8s4cqd5lkzvg_wk1k00000gn/T//ccv8SWpV.s:104:2: error: instruction requires: Not 64-bit mode
popl %esi
^
/var/folders/xw/9n848h8s4cqd5lkzvg_wk1k00000gn/T//ccv8SWpV.s:106:2: error: instruction requires: Not 64-bit mode
popl %ebp
^
/var/folders/xw/9n848h8s4cqd5lkzvg_wk1k00000gn/T//ccv8SWpV.s:121:2: error: instruction requires: Not 64-bit mode
popl %ebx
^
/var/folders/xw/9n848h8s4cqd5lkzvg_wk1k00000gn/T//ccv8SWpV.s:123:2: error: instruction requires: Not 64-bit mode
popl %esi
^
/var/folders/xw/9n848h8s4cqd5lkzvg_wk1k00000gn/T//ccv8SWpV.s:125:2: error: instruction requires: Not 64-bit mode
popl %ebp
^
/var/folders/xw/9n848h8s4cqd5lkzvg_wk1k00000gn/T//ccv8SWpV.s:132:2: error: unknown directive
.size strcmp, .-strcmp
^
/var/folders/xw/9n848h8s4cqd5lkzvg_wk1k00000gn/T//ccv8SWpV.s:135:2: error: unknown directive
.type strlen, @function
^
/var/folders/xw/9n848h8s4cqd5lkzvg_wk1k00000gn/T//ccv8SWpV.s:141:2: error: instruction requires: Not 64-bit mode
pushl %ebp
^
/var/folders/xw/9n848h8s4cqd5lkzvg_wk1k00000gn/T//ccv8SWpV.s:164:2: error: instruction requires: Not 64-bit mode
popl %ebp
^
/var/folders/xw/9n848h8s4cqd5lkzvg_wk1k00000gn/T//ccv8SWpV.s:177:2: error: instruction requires: Not 64-bit mode
popl %ebp
^
/var/folders/xw/9n848h8s4cqd5lkzvg_wk1k00000gn/T//ccv8SWpV.s:184:2: error: unknown directive
.size strlen, .-strlen
^
/var/folders/xw/9n848h8s4cqd5lkzvg_wk1k00000gn/T//ccv8SWpV.s:187:2: error: unknown directive
.type memset, @function
^
/var/folders/xw/9n848h8s4cqd5lkzvg_wk1k00000gn/T//ccv8SWpV.s:193:2: error: instruction requires: Not 64-bit mode
pushl %ebp
^
/var/folders/xw/9n848h8s4cqd5lkzvg_wk1k00000gn/T//ccv8SWpV.s:200:2: error: instruction requires: Not 64-bit mode
pushl %edi
^
/var/folders/xw/9n848h8s4cqd5lkzvg_wk1k00000gn/T//ccv8SWpV.s:211:1: error: unexpected token at start of statement
/APP
^
/var/folders/xw/9n848h8s4cqd5lkzvg_wk1k00000gn/T//ccv8SWpV.s:212:1: error: unexpected token at start of statement
/ 45 "x86.h" 1
^
/var/folders/xw/9n848h8s4cqd5lkzvg_wk1k00000gn/T//ccv8SWpV.s:214:1: error: unexpected token at start of statement
/ 0 "" 2
^
/var/folders/xw/9n848h8s4cqd5lkzvg_wk1k00000gn/T//ccv8SWpV.s:216:1: error: unexpected token at start of statement
/NO_APP
^
/var/folders/xw/9n848h8s4cqd5lkzvg_wk1k00000gn/T//ccv8SWpV.s:221:2: error: instruction requires: Not 64-bit mode
popl %edi
^
/var/folders/xw/9n848h8s4cqd5lkzvg_wk1k00000gn/T//ccv8SWpV.s:223:2: error: instruction requires: Not 64-bit mode
popl %ebp
^
/var/folders/xw/9n848h8s4cqd5lkzvg_wk1k00000gn/T//ccv8SWpV.s:230:2: error: unknown directive
.size memset, .-memset
^
/var/folders/xw/9n848h8s4cqd5lkzvg_wk1k00000gn/T//ccv8SWpV.s:233:2: error: unknown directive
.type strchr, @function
^
/var/folders/xw/9n848h8s4cqd5lkzvg_wk1k00000gn/T//ccv8SWpV.s:239:2: error: instruction requires: Not 64-bit mode
pushl %ebp
^
/var/folders/xw/9n848h8s4cqd5lkzvg_wk1k00000gn/T//ccv8SWpV.s:266:2: error: instruction requires: Not 64-bit mode
popl %ebp
^
/var/folders/xw/9n848h8s4cqd5lkzvg_wk1k00000gn/T//ccv8SWpV.s:279:2: error: instruction requires: Not 64-bit mode
popl %ebp
^
/var/folders/xw/9n848h8s4cqd5lkzvg_wk1k00000gn/T//ccv8SWpV.s:286:2: error: unknown directive
.size strchr, .-strchr
^
/var/folders/xw/9n848h8s4cqd5lkzvg_wk1k00000gn/T//ccv8SWpV.s:289:2: error: unknown directive
.type gets, @function
^
/var/folders/xw/9n848h8s4cqd5lkzvg_wk1k00000gn/T//ccv8SWpV.s:295:2: error: instruction requires: Not 64-bit mode
pushl %ebp
^
/var/folders/xw/9n848h8s4cqd5lkzvg_wk1k00000gn/T//ccv8SWpV.s:302:2: error: instruction requires: Not 64-bit mode
pushl %edi
^
/var/folders/xw/9n848h8s4cqd5lkzvg_wk1k00000gn/T//ccv8SWpV.s:303:2: error: instruction requires: Not 64-bit mode
pushl %esi
^
/var/folders/xw/9n848h8s4cqd5lkzvg_wk1k00000gn/T//ccv8SWpV.s:304:2: error: instruction requires: Not 64-bit mode
pushl %ebx
^
/var/folders/xw/9n848h8s4cqd5lkzvg_wk1k00000gn/T//ccv8SWpV.s:352:2: error: instruction requires: Not 64-bit mode
popl %ebx
^
/var/folders/xw/9n848h8s4cqd5lkzvg_wk1k00000gn/T//ccv8SWpV.s:354:2: error: instruction requires: Not 64-bit mode
popl %esi
^
/var/folders/xw/9n848h8s4cqd5lkzvg_wk1k00000gn/T//ccv8SWpV.s:357:2: error: instruction requires: Not 64-bit mode
popl %edi
^
/var/folders/xw/9n848h8s4cqd5lkzvg_wk1k00000gn/T//ccv8SWpV.s:359:2: error: instruction requires: Not 64-bit mode
popl %ebp
^
/var/folders/xw/9n848h8s4cqd5lkzvg_wk1k00000gn/T//ccv8SWpV.s:366:2: error: unknown directive
.size gets, .-gets
^
/var/folders/xw/9n848h8s4cqd5lkzvg_wk1k00000gn/T//ccv8SWpV.s:369:2: error: unknown directive
.type stat, @function
^
/var/folders/xw/9n848h8s4cqd5lkzvg_wk1k00000gn/T//ccv8SWpV.s:375:2: error: instruction requires: Not 64-bit mode
pushl %ebp
^
/var/folders/xw/9n848h8s4cqd5lkzvg_wk1k00000gn/T//ccv8SWpV.s:382:2: error: instruction requires: Not 64-bit mode
pushl %esi
^
/var/folders/xw/9n848h8s4cqd5lkzvg_wk1k00000gn/T//ccv8SWpV.s:383:2: error: instruction requires: Not 64-bit mode
pushl %ebx
^
/var/folders/xw/9n848h8s4cqd5lkzvg_wk1k00000gn/T//ccv8SWpV.s:413:2: error: instruction requires: Not 64-bit mode
popl %ebx
^
/var/folders/xw/9n848h8s4cqd5lkzvg_wk1k00000gn/T//ccv8SWpV.s:417:2: error: instruction requires: Not 64-bit mode
popl %esi
^
/var/folders/xw/9n848h8s4cqd5lkzvg_wk1k00000gn/T//ccv8SWpV.s:419:2: error: instruction requires: Not 64-bit mode
popl %ebp
^
/var/folders/xw/9n848h8s4cqd5lkzvg_wk1k00000gn/T//ccv8SWpV.s:434:2: error: unknown directive
.size stat, .-stat
^
/var/folders/xw/9n848h8s4cqd5lkzvg_wk1k00000gn/T//ccv8SWpV.s:437:2: error: unknown directive
.type atoi, @function
^
/var/folders/xw/9n848h8s4cqd5lkzvg_wk1k00000gn/T//ccv8SWpV.s:443:2: error: instruction requires: Not 64-bit mode
pushl %ebp
^
/var/folders/xw/9n848h8s4cqd5lkzvg_wk1k00000gn/T//ccv8SWpV.s:450:2: error: instruction requires: Not 64-bit mode
pushl %ebx
^
/var/folders/xw/9n848h8s4cqd5lkzvg_wk1k00000gn/T//ccv8SWpV.s:478:2: error: instruction requires: Not 64-bit mode
popl %ebx
^
/var/folders/xw/9n848h8s4cqd5lkzvg_wk1k00000gn/T//ccv8SWpV.s:480:2: error: instruction requires: Not 64-bit mode
popl %ebp
^
/var/folders/xw/9n848h8s4cqd5lkzvg_wk1k00000gn/T//ccv8SWpV.s:487:2: error: unknown directive
.size atoi, .-atoi
^
/var/folders/xw/9n848h8s4cqd5lkzvg_wk1k00000gn/T//ccv8SWpV.s:490:2: error: unknown directive
.type memmove, @function
^
/var/folders/xw/9n848h8s4cqd5lkzvg_wk1k00000gn/T//ccv8SWpV.s:496:2: error: instruction requires: Not 64-bit mode
pushl %ebp
^
/var/folders/xw/9n848h8s4cqd5lkzvg_wk1k00000gn/T//ccv8SWpV.s:503:2: error: instruction requires: Not 64-bit mode
pushl %esi
^
/var/folders/xw/9n848h8s4cqd5lkzvg_wk1k00000gn/T//ccv8SWpV.s:504:2: error: instruction requires: Not 64-bit mode
pushl %ebx
^
/var/folders/xw/9n848h8s4cqd5lkzvg_wk1k00000gn/T//ccv8SWpV.s:528:2: error: instruction requires: Not 64-bit mode
popl %ebx
^
/var/folders/xw/9n848h8s4cqd5lkzvg_wk1k00000gn/T//ccv8SWpV.s:530:2: error: instruction requires: Not 64-bit mode
popl %esi
^
/var/folders/xw/9n848h8s4cqd5lkzvg_wk1k00000gn/T//ccv8SWpV.s:532:2: error: instruction requires: Not 64-bit mode
popl %ebp
^
/var/folders/xw/9n848h8s4cqd5lkzvg_wk1k00000gn/T//ccv8SWpV.s:539:2: error: unknown directive
.size memmove, .-memmove
^
/var/folders/xw/9n848h8s4cqd5lkzvg_wk1k00000gn/T//ccv8SWpV.s:543:11: error: mach-o section specifier uses an unknown section type
.section .debug_info,"",@progbits
^
/var/folders/xw/9n848h8s4cqd5lkzvg_wk1k00000gn/T//ccv8SWpV.s:999:11: error: mach-o section specifier uses an unknown section type
.section .debug_abbrev,"",@progbits
^
/var/folders/xw/9n848h8s4cqd5lkzvg_wk1k00000gn/T//ccv8SWpV.s:1305:11: error: mach-o section specifier uses an unknown section type
.section .debug_loc,"",@progbits
^
/var/folders/xw/9n848h8s4cqd5lkzvg_wk1k00000gn/T//ccv8SWpV.s:1750:11: error: mach-o section specifier uses an unknown section type
.section .debug_aranges,"",@progbits
^
/var/folders/xw/9n848h8s4cqd5lkzvg_wk1k00000gn/T//ccv8SWpV.s:1762:11: error: mach-o section specifier uses an unknown section type
.section .debug_line,"",@progbits
^
/var/folders/xw/9n848h8s4cqd5lkzvg_wk1k00000gn/T//ccv8SWpV.s:1764:11: error: mach-o section specifier uses an unknown section type
.section .debug_str,"MS",@progbits,1
^
make: *** [ulib.o] Error 1
我该怎么解决这个问题？