/*?This?file?contains?the?main?program?of?MINIX?as?well?as?its?shutdown?code.
?*?The?routine?main（）?initializes?the?system?and?starts?the?ball?rolling?by
?*?setting?up?the?process?table?interrupt?vectors?and?scheduling?each?task?
?*?to?run?to?initialize?itself.
?*?The?routine?shutdown（）?does?the?opposite?and?brings?down?MINIX.?
?*
?*?The?entries?into?this?file?are:
?*???main:	????	MINIX?main?program
?*???prepare_shutdown:	prepare?to?take?MINIX?down
?*/
#include?“kernel.h“
#include?
#include?
#include?
#include?
#include?
#include?“proc.h“
#include?“debug.h“
#include?“clock.h“

/*?Prototype?declarations?for?PRIVATE?functions.?*/
FORWARD?_PROTOTYPE（?void?announce?（void））;	

/*===========================================================================*
?*				main?????????????????????????????????????????*
?*===========================================================================*/
PUBLIC?void?main（）
{
/*?Start?the?ball?rolling.?*/
??struct?boot_image?*ip;	/*?boot?image?pointer?*/
??register?struct?proc?*rp;	/*?process?pointer?*/
??register?struct?priv?*sp;	/*?privilege?structure?pointer?*/
??register?int?i?j;
??int?hdrindex;			/*?index?to?array?of?a.out?headers?*/
??phys_clicks?text_base;
??vir_clicks?text_clicks?data_clicks?st_clicks;
??reg_t?ktsb;			/*?kernel?task?stack?base?*/
??struct?exec?e_hdr;		/*?for?a?copy?of?an?a.out?header?*/

???/*?Global?value?to?test?segment?sanity.?*/
???magictest?=?MAGICTEST;
?
??/*?Clear?the?process?table.?Anounce?each?slot?as?empty?and?set?up?mappings?
???*?for?proc_addr（）?and?proc_nr（）?macros.?Do?the?same?for?the?table?with?
???*?privilege?structures?for?the?system?processes.?
???*/
??for?（rp?=?BEG_PROC_ADDR?i?=?-NR_TASKS;?rp???	rp->p_rts_flags?=?RTS_SLOT_FREE;		/*?initialize?free?slot?*/
	rp->p_deadline.tmr_exp_time?=?0;?/*?realtime?scheduling*/
#if?DEBUG_SCHED_CHECK
	rp->p_magic?=?PMAGIC;
#endif
	rp->p_nr?=?i;				/*?proc?number?from?ptr?*/
	rp->p_endpoint?=?_ENDPOINT（0?rp->p_nr）;?/*?generation?no.?0?*/
??}
??for?（sp?=?BEG_PRIV_ADDR?i?=?0;?sp?	sp->s_proc_nr?=?NONE;			/*?initialize?as?free?*/
	sp->s_id?=?（proc_nr_t）?i;		/*?priv?structure?index?*/
	ppriv_addr[i]?=?sp;			/*?priv?ptr?from?number?*/
??}

??/*?Set?up?proc?table?entries?for?processes?in?boot?image.??The?stacks?of?the
???*?kernel?tasks?are?initialized?to?an?array?in?data?space.??The?stacks
???*?of?the?servers?have?been?added?to?the?data?segment?by?the?monitor?so
???*?the?stack?pointer?is?set?to?the?end?of?the?data?segment.??All?the
???*?processes?are?in?low?memory?on?the?8086.??On?the?386?only?the?kernel
???*?is?in?low?memory?the?rest?is?loaded?in?extended?memory.
???*/

??/*?Task?stacks.?*/
??ktsb?=?（reg_t）?t_stack;

??for?（i=0;?i?	int?schedulable_proc;
	proc_nr_t?proc_nr;
	int?ipc_to_m?kcalls;

	ip?=?&image[i];				/*?proc

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----

?????文件??????78848??2010-05-22?18:02??Minix3?project2?文檔.doc

?????文件???????3248??2010-05-05?19:02??src\include\minix\callnr.h

?????文件??????43529??2010-05-05?19:07??src\include\minix\com.h

?????文件??????12348??2010-05-05?19:10??src\include\minix\syslib.h

?????文件???????9847??2010-05-05?21:55??src\include\unistd.h

?????文件???????3221??2010-05-03?16:39??src\kernel\config.h

?????文件??????11556??2010-05-09?15:53??src\kernel\main.c

?????文件??????50345??2010-05-09?17:03??src\kernel\proc.c

?????文件??????10784??2010-05-05?20:28??src\kernel\proc.h

?????文件???????1380??2010-05-10?17:38??src\kernel\system\do_chrt.c

?????文件???????1384??2010-05-10?17:37??src\kernel\system\do_chrt.c.bak

?????文件???????3180??2010-05-03?16:02??src\kernel\system\do_exit.c

?????文件???????3657??2010-05-03?22:00??src\kernel\system\Makefile

?????文件??????22847??2010-05-03?16:41??src\kernel\system.c

?????文件???????5750??2010-05-03?16:38??src\kernel\system.h

?????文件???????1555??2010-05-03?22:50??src\lib\posix\Makefile.in

?????文件????????169??2010-05-09?15:23??src\lib\posix\_chrt.c

?????文件???????1428??2010-05-04?11:04??src\lib\syslib\Makefile.in

?????文件????????457??2010-05-09?15:22??src\lib\syslib\sys_chrt.c

?????文件??????18420??2010-05-08?11:09??src\servers\pm\misc.c

?????文件???????3471??2010-05-03?22:15??src\servers\pm\proto.h

?????文件???????3885??2010-05-07?16:38??src\servers\pm\table.c

?????目錄??????????0??2010-05-06?20:37??src\include\minix

?????目錄??????????0??2010-05-10?17:38??src\kernel\system

?????目錄??????????0??2010-05-06?14:20??src\lib\posix

?????目錄??????????0??2010-05-06?20:55??src\lib\syslib

?????目錄??????????0??2010-05-06?20:42??src\servers\pm

?????目錄??????????0??2010-05-06?14:50??src\include

?????目錄??????????0??2010-05-09?17:05??src\kernel

?????目錄??????????0??2010-05-06?14:20??src\lib

............此處省略5個文件信息