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Copyright (c) 2006 Dancefire (dancefire#gmail).
Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free documentation License, Version 1.2 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts,
no Back-Cover Texts. A copy of the license is included in the section entitled "GNU Free Documentation License".
×÷ÕߣºDancefire (dancefire # gmail dot com )
( PDF¸ñʽ¼°·ÖÎöËùÓýű¾³ÌÐòÏÂÔØÁ¬½Ó£ºhttp://www.dancefire.org/file/kernel_similarity_analysis_1.0.zip )
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c043e9e8 <freebsd4_sigcode>: | c04431d8 <freebsd4_sigcode>:
freebsd4_sigcode(): freebsd4_sigcode():
c043e9e8: call *0x10(%esp) | c04431d8: call *0x10(%esp)
c043e9ec: lea 0x14(%esp),%eax | c04431dc: lea 0x14(%esp),%eax
c043e9f0: push %eax | c04431e0: push %eax
c043e9f1: testl $0x20000,0x54(%eax) | c04431e1: testl $0x20000,0x54(%eax)
c043e9f8: jne c043e9fd <freebsd4_sigcode+0x15> | c04431e8: jne c04431ed <freebsd4_sigcode+0x15>
c043e9fa: movl 0x14(%eax),%gs | c04431ea: movw 0x14(%eax),%gs
c043e9fd: mov $0x158,%eax | c04431ed: mov $0x158,%eax
c043ea02: push %eax | c04431f2: push %eax
c043ea03: int $0x80 | c04431f3: int $0x80
c043ea05: jmp c043ea05 <freebsd4_sigcode+0x1d> | c04431f5: jmp c04431f5 <freebsd4_sigcode+0x1d>
c043ea07: nop | c04431f7: nop
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freebsd4_sigcode(): | freebsd4_sigcode():
call *{Offset}(%esp) | call *{Offset}(%esp)
lea {Offset}(%esp),%eax | lea {Offset}(%esp),%eax
push %eax | push %eax
testl {Number},{Offset}(%eax) | testl {Number},{Offset}(%eax)
jne <freebsd4_sigcode+{Offset}> | jne <freebsd4_sigcode+{Offset}>
movl {Offset}(%eax),%gs | movw {Offset}(%eax),%gs
mov {Number},%eax | mov {Number},%eax
push %eax | push %eax
int {Number} | int {Number}
jmp <freebsd4_sigcode+{Offset}> | jmp <freebsd4_sigcode+{Offset}>
nop | nop
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begin(): <
mov {Address},%eax <
lea {Offset}(%eax),%esp <
xor %ebp,%ebp <
mov {Address},%esi <
mov %esi,{Offset}(%eax) <
pushl {Address} <
call <init386> <
add {Number},%esp <
call <mi_startup> <
add {Number},%esp <
sigcode(): sigcode():
call *{Offset}(%esp) call *{Offset}(%esp)
lea {Offset}(%esp),%eax lea {Offset}(%esp),%eax
push %eax push %eax
testl {Number},{Offset}(%eax) testl {Number},{Offset}(%eax)
jne <sigcode+{Offset}> jne <sigcode+{Offset}>
movl {Offset}(%eax),%gs | movw {Offset}(%eax),%gs
mov {Number},%eax mov {Number},%eax
push %eax push %eax
int {Number} int {Number}
jmp <sigcode+{Offset}> jmp <sigcode+{Offset}>
nop nop
> begin():
> mov {Address},%eax
> lea {Offset}(%eax),%esp
> xor %ebp,%ebp
> mov {Address},%esi
> mov %esi,{Offset}(%eax)
> pushl {Address}
> call <init386>
> add {Number},%esp
> call <mi_startup>
> add {Number},%esp
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begin(): begin():
mov {Address},%eax mov {Address},%eax
lea {Offset}(%eax),%esp lea {Offset}(%eax),%esp
xor %ebp,%ebp xor %ebp,%ebp
mov {Address},%esi mov {Address},%esi
mov %esi,{Offset}(%eax) mov %esi,{Offset}(%eax)
pushl {Address} pushl {Address}
call <init386> call <init386>
add {Number},%esp add {Number},%esp
call <mi_startup> call <mi_startup>
add {Number},%esp add {Number},%esp
sigcode(): sigcode():
call *{Offset}(%esp) call *{Offset}(%esp)
lea {Offset}(%esp),%eax lea {Offset}(%esp),%eax
push %eax push %eax
testl {Number},{Offset}(%eax) testl {Number},{Offset}(%eax)
jne <sigcode+{Offset}> jne <sigcode+{Offset}>
movl {Offset}(%eax),%gs | movw {Offset}(%eax),%gs
mov {Number},%eax mov {Number},%eax
push %eax push %eax
int {Number} int {Number}
jmp <sigcode+{Offset}> jmp <sigcode+{Offset}>
nop nop
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2.1.4 ±È½Ï
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1¡¢ kitten -> sitten (ÐÞ¸Äs->k)
2¡¢ sitten -> sittin (ÐÞ¸Äi->e)
3¡¢ sittin -> sitting (Ôö¼Ó g)
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A->BµÄÏàËÆ¶È = (b-c) / a
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A-B¼äµÄÏàËÆ¶È = max( (b-c) / a, (a-d) / b )
2.1.5 С½á
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freebsd_6.0 1,271,723 9.58% 11.24% - 12.63% 13.19% 13.14% 12.63% 6.61% 16.65% 16.22% 15.89% 16.24% 5.21%
kylin_2.0.0 1,120,079 31.92% 41.94% 14.55% - 91.06% 91.06% 100.00% 5.38% 10.83% 10.31% 10.20% 10.35% 4.35%
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linux_2.6.16 666,204 9.47% 9.71% 13.13% 5.38% 5.38% 5.39% 5.38% - 11.89% 12.09% 12.21% 12.07% 6.30%
netbsd_2.1 1,503,585 6.49% 7.42% 13.68% 8.06% 8.18% 7.97% 8.06% 5.20% - 53.35% 17.53% 16.72% 4.10%
netbsd_3.0 1,616,659 6.19% 7.11% 12.65% 7.54% 7.90% 7.89% 7.54% 4.98% 24.40% - 13.96% 14.61% 3.73%
openbsd_3.7 1,228,137 7.95% 9.58% 16.54% 9.27% 9.97% 9.71% 9.27% 6.43% 20.77% 18.44% - 88.89% 5.20%
openbsd_3.8 1,260,707 7.72% 8.84% 16.52% 8.88% 9.53% 9.52% 8.88% 6.29% 20.65% 18.47% 84.56% - 5.00%
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0ÖУ»ÓÐ302¸öº¯Êý³öÏÖÔÚÁËKylin 2.0 objdumpµÄÎļþÀ¶øûÓгöÏÖÔÚFreeBSD 5.3µÄobjdumpÎļþÀï¡£¾¹ý·ÖÎö£¬Õâ302¸öº¯ÊýÖÐÓÐ223¶¼¿ÉÒÔÔÚFreeBSD 5.3µÄÔ´´úÂëÀïÕÒµ½£¬Ã»Óб»objdump³öÀ´ÓпÉÄÜÊÇÒòΪ±àÒë»·¾³²»Í¬¡£»¹Ê£ÏÂ79¸öº¯Êý¿ÉÄÜÊÇ÷è÷ëÐÂÔöµÄº¯Êý£¬ËûÃÇÊÇ£º
+ acd_describe_proc():
+ ad_print_proc():
+ ata_info():
+ ata_proc_print():
+ bus_usb_proc():
+ g_conftxt_class_proc():
+ g_conftxt_geom_proc():
+ g_conftxt_proc():
+ ifa_ifwithnet_packet():
+ kevent_epoll_ctl():
+ kevent_epoll_wait():
+ kqueue_scan_epoll():
+ linprocfs_doata0info():
+ linprocfs_doata1info():
+ linprocfs_donetarp():
+ linprocfs_donetroute():
+ linprocfs_dopartitions():
+ linprocfs_doprogress():
+ linprocfs_doscsi():
+ linprocfs_dousbdevices():
+ linprocfs_dousbhub():
+ linux_emul_convpath_orig():
+ linux_gifindex():
+ linux_ioctl_floppy():
+ linux_sifflags():
+ linux_to_bsd_sifhwaddr():
+ mdchange_vnode():
+ mpt_get_tgt_negotiated_params():
+ mpt_physdisk_status():
+ mpt_print_header(): [OpenBSD]
+ mpt_print_raid_config():
+ mpt_raid_vol_status():
+ mpt_read_cfg_page_with_alloc():
+ mpt_read_config_info_raid(): [OpenBSD]
+ mpt_set_tgt_params():
+ packet_abort():
+ packet_appenctl():
+ packet_attach():
+ packet_bind():
+ packet_connect():
+ packet_control():
+ packet_detach():
+ packet_dhd_input():
+ packet_disconnect():
+ packet_init():
+ packet_input():
+ packet_output():
+ packet_peeraddr():
+ packet_proto_input():
+ packet_send():
+ packet_shutdown():
+ packet_sockaddr():
+ ptmsclose():
+ ptmsopen():
+ ptmx_clone():
+ ptmxclose():
+ ptmxinit():
+ ptmxopen():
+ raid_get_physdisk_by_num():
+ read_raid_info():
+ resolve_raid_targets():
+ scsi_proc_inquiry():
+ shmperm():
+ splash_progress():
+ syscons_progress():
+ sysctl_kern_umass():
+ usb_bus_exist():
+ usbd_add_procinfo():
+ usbd_devinfo_sn():
+ usbd_remove_procinfo():
+ xpt_announce_proc():
+ xpt_find_umass():
+ xpt_proc_periph():
+ xptdaannouncefunc():
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+ vfs_nmount():
+ mpt_read_config_info_ioc():
+ linux_epoll_create():
+ linux_epoll_ctl():
+ linux_epoll_wait():
Èç¹ûµ¥´Óº¯ÊýÃû±È¶ÔµÄͳ¼ÆÉÏ¿´µÄ»°£¬14399¸öº¯Êý£¬Ö»ÓÐ79¸öº¯Êý¿ÉÄÜÊÇÔ´´µÄ¡£ÓëFreeBSD 5.3ÔÚº¯ÊýÃûÉϵÄÏàËƶÈÓÐ99.45%¡£Õâ¸öÏàËƳ̶ÈÊ®·Ö¾ªÈË£¬µ«Êǽöƾº¯ÊýÃûÏàËƲ»×ãÒÔ˵Ã÷Âß¼ÉÏÏàËÆ£¬Òò´Ë£¬ÔÚ·ÖÎö±¨¸æÖУ¬Õâ¸ö·ÖÎöÊý¾ÝÖ»×÷Ϊ²Î¿¼Êý¾Ý·Åµ½¸½Â¼ÖС£¸ÐÐËȤµÄÅóÓÑ¿ÉÒÔ
½µÄ·ÖÎö¡£
¸½Â¼B ²Î¿¼×ÊÁÏ
1. ÷è÷ë¹Ù·½ÍøÕ¾ http://www.kylin.org.cn/
2. 863¼Æ»®¹Ù·½ÍøÕ¾ http://www.863.org.cn/
3. ¡¶¹ØÓÚÒøºÓ÷è÷ë²Ù×÷ϵͳµÄ˵Ã÷¡· http://www.kylin.org.cn/download.htm
4. GNU AssemblerÊÖ²á http://sourceware.org/binutils/docs-2.16/as/index.html
5. Levenshtein Distance, in Three Flavors, by Michael Gilleland http://www.merriampark.com/ld.htm
6. ά»ù°Ù¿ÆÈ«Êé: Levenshtein Distance http://en.wikipedia.org/wiki/Levenshtein_distance
7. An Algorithm for Differential File Comparison, by J. W. Hunt, M. D. Mcllroy http://www.cs.dartmouth.edu/~dou
8. »ùÓڸĽø±à¼¾àÀëµÄÖÐÎÄÏàËƾä×Ó¼ìË÷ ³µÍòÏè¡¢Áõͦ¡¢ÇرøºÍÀîÉú http://ir.hit.edu.cn/
9. A Brief History of FreeBSD http://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/history.html
10. ά»ù°Ù¿ÆÈ«Ê飺NetBSD http://en.wikipedia.org/wiki/NetBSD
11. ά»ù°Ù¿ÆÈ«Ê飺OpenBSD http://en.wikipedia.org/wiki/Openbsd
12. Linus Torvalds biography http://www.linux.org/lininfo/linus.html
13. A Brief History of Solaris (PDF) http://unixed.com/Resources/history_of_solaris.pdf
14. Overview of OpenSolaris http://www.opensolaris.org/os/about/
15. FreeBSD 5.2.1 Release Notes http://www.freebsd.org/releases/5.2.1R/relnotes-i386.html#SECURITY
16. ά»ù°Ù¿ÆÈ«Ê飺UNIX System V http://en.wikipedia.org/wiki/SVR4
17. FreeBSD Handbook, Chapter 10 Linux Binary Compatibility
http://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/linuxemu-advanced.html
18. Man page of PROCFS(5)
http://www.freebsd.org/cgi/man.cgi?query=procfs&sektion=5&manpath=FreeBSD+5.4-RELEASE
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