/*?syscalls.c
?*?	Nachos?system?call?interface.??These?are?the?enveloped?Nachos?kernel?
?*??????operations?that?can?be?invoked?from?user?programs.
?*??????Each?NachOS?system?call?is?translated?to?an?apropriate?LIBC?call.?
?*??????Hopefully?this?works?on?MacOS?X?*nix?and?Windows
?*/


#include?“nachos_syscall.h“

#include?
#include?
#include?
#include?
#include?
#include?
#include?
#include?
#include?
#include?

#include?
#include?
#include?



#ifdef?HAVE_CONFIG_H
#include?“config.h“
#endif

#define?SHELL?“/bin/sh“

/*
?*?The?system?call?interface.??These?are?the?operations?the?Nachos
?*?kernel?needs?to?support?to?be?able?to?run?user?programs.
?*/

/*?S

?屬性????????????大小?????日期????時(shí)間???名稱
-----------?---------??----------?-----??----
?????目錄???????????0??2017-04-09?15:49??NachOS-4.1\
?????文件????????6148??2017-04-09?15:49??NachOS-4.1\.DS_Store
?????文件????????1020??2002-12-16?18:57??NachOS-4.1\COPYRIGHT
?????目錄???????????0??2002-12-16?18:57??NachOS-4.1\c++example\
?????文件?????????706??2002-12-16?18:57??NachOS-4.1\c++example\Makefile
?????文件??????187752??2002-12-16?18:57??NachOS-4.1\c++example\c++.ps
?????文件???????66890??2002-12-16?18:57??NachOS-4.1\c++example\c++.tex
?????文件????????1224??2002-12-16?18:57??NachOS-4.1\c++example\copyright.h
?????文件????????6276??2002-12-16?18:57??NachOS-4.1\c++example\inheritstack.cc
?????文件????????3026??2002-12-16?18:57??NachOS-4.1\c++example\inheritstack.h
?????文件????????3604??2002-12-16?18:57??NachOS-4.1\c++example\list.cc
?????文件?????????919??2002-12-16?18:57??NachOS-4.1\c++example\list.h
?????文件????????3569??2002-12-16?18:57??NachOS-4.1\c++example\stack.cc
?????文件????????1399??2002-12-16?18:57??NachOS-4.1\c++example\stack.h
?????文件????????3921??2002-12-16?18:57??NachOS-4.1\c++example\templatestack.cc
?????文件????????1252??2002-12-16?18:57??NachOS-4.1\c++example\templatestack.h
?????目錄???????????0??2017-04-09?15:49??NachOS-4.1\code\
?????文件????????6148??2017-04-09?15:51??NachOS-4.1\code\.DS_Store
?????文件????????2023??2003-10-08?00:23??NachOS-4.1\code\README
?????目錄???????????0??2003-10-13?21:55??NachOS-4.1\code\build.cygwin\
?????文件???????12006??2003-10-11?00:40??NachOS-4.1\code\build.cygwin\Makefile
?????文件???????31309??2002-12-16?18:57??NachOS-4.1\code\build.cygwin\Makefile.dep
?????目錄???????????0??2017-04-12?10:20??NachOS-4.1\code\build.linux\
?????文件???????11969??2017-04-12?09:53??NachOS-4.1\code\build.linux\Makefile
?????文件??????133041??2017-04-12?10:11??NachOS-4.1\code\build.linux\Makefile.dep
?????目錄???????????0??2003-10-13?21:55??NachOS-4.1\code\build.macosx\
?????文件???????11971??2003-10-11?00:40??NachOS-4.1\code\build.macosx\Makefile
?????文件?????????634??2002-12-16?18:57??NachOS-4.1\code\build.macosx\Makefile.dep
?????目錄???????????0??2002-12-16?18:57??NachOS-4.1\code\filesys\
?????文件????????6193??2002-12-16?18:57??NachOS-4.1\code\filesys\directory.cc
?????文件????????2878??2002-12-16?18:57??NachOS-4.1\code\filesys\directory.h
............此處省略106個(gè)文件信息