Joinc Wiki:

Facebook Joinc 그룹 Joinc QA 사이트

현재위치 : Code>C>reboot

joinc는 Firefox와 chrome에서 테스트 했습니다. IE에서는 테이블이 깨지거나 이미지가 보이지 않을 수 있습니다. 특히 구글 Docs이미지의 경우 엑박처리될 수 있습니다.

reboot/poweroff
간략화한 reboot 코드
minzkn
Version 0.1
2005/08/13

설명

이것은 간략한 reboot/poweroff 의 예제를 만든겁니다.

꽤 간략하게 구현한것인데

실제로 완전한 구현은 생각보다 깊은 이해를 필요로 합니다.

swapoff와 unmount filesystem 부분은 귀찮아서 구현하지 않았습니다.

그밖에 콘솔관련 정리하는 부분도 넣지 않았습니다.

해당 미구현된 부분이 없어도 기능상 문제가 거의 없지만

완전한 구현을 위해서는 필요합니다.

i386/ppc/arm/mips 모두에서 사용가능할겁니다.

원문: http://minzkn.wowdns.com:2744/phpBB2/viewtopic.php?t=412

사용방법

Makefile

# Copyright (C) Information Equipment co.,LTD 
# All rights reserved. 
# Code by JaeHyuk Cho <mailto:minzkn@infoeq.com> 
# CVSTAG="$Header: /usr/local/mutihost/joinc/modules/moniwiki/data/text/RCS/Code_2fC_2freboot,v 1.1 2007/01/09 02:46:10 root Exp root $" 
 
# bash$ make TARGET_ARCH=i386 all 
# bash$ make TARGET_ARCH=mips all 
# bash$ make TARGET_ARCH=ppc all 
# bash$ make TARGET_ARCH=arm all 
 
TARGET_ARCH                  :=i386 
# TARGET_ARCH                  :=mips 
# TARGET_ARCH                  :=ppc 
# TARGET_ARCH                  :=arm 
 
ifeq ($(findstring mips,$(TARGET_ARCH)),mips) 
 CROSS_COMPILE               :=/opt/kenati/bin/lx4189-uclibc-# 
else 
 ifeq ($(findstring ppc,$(TARGET_ARCH)),ppc) 
  CROSS_COMPILE              :=/opt/hardhat/devkit/ppc/405/bin/ppc_405-# 
 else 
  ifeq ($(findstring arm,$(TARGET_ARCH)),arm) 
   CROSS_COMPILE             :=/usr/local/arm-linux/bin/arm-linux-# 
  else 
   ifeq ($(findstring i386,$(TARGET_ARCH)),i386) 
    CROSS_COMPILE            :=# 
   else 
    CROSS_COMPILE            :=# 
   endif 
  endif 
 endif 
endif 
 
CC                           := $(CROSS_COMPILE)gcc 
RM                           := rm -f 
 
CFLAGS                       := -O2 -Wall -Werror -fomit-frame-pointer -pipe -I. -D_REENTRANT 
LDFLAGS                      := -s 
 
TARGET                       := mzreboot mzpoweroff 
 
OBJECT_mzreboot              := reboot.o 
OBJECT_mzpoweroff            := poweroff.o 
 
OBJECTS                      := $(OBJECT_mzreboot) $(OBJECT_mzpoweroff) 
 
.PHONY: all clean 
 
all: $(TARGET) 
clean: ; $(RM) *.o $(TARGET) 
 
$(OBJECTS): Makefile shutdown.h 
 
mzreboot: $(OBJECT_mzreboot) ; $(CC) $(LDFLAGS) -o $(@) $(^) 
mzpoweroff: $(OBJECT_mzpoweroff) ; $(CC) $(LDFLAGS) -o $(@) $(^) 
 
%.o: %.c ; $(CC) $(CFLAGS) -c -o $(@) $(<) 
 
# End of Makefile

코드

/*  
  Copyright (C) Information Equipment co.,LTD  
  All rights reserved.  
  Code by JaeHyuk Cho <mailto:minzkn@infoeq.com>  
  CVSTAG="$Header: /usr/local/mutihost/joinc/modules/moniwiki/data/text/RCS/Code_2fC_2freboot,v 1.1 2007/01/09 02:46:10 root Exp root $"  
*/  
 
#if !defined(__def_mz_shutdown_h__)  
#define __def_mz_shutdown_h__ "shutdown.h"  
 
#include <sys/reboot.h>  
#include <stdio.h>  
#include <stdlib.h>  
#include <unistd.h>  
#include <signal.h>  
 
#if (__GNU_LIBRARY__ > 5) || defined(__dietlibc__)  
# define __mz_reboot_syscall__(m_flag) do{ (void)reboot(m_flag); }while(0)  
#else  
# define __mz_reboot_syscall__(m_flag) do{ (void)reboot(0xfee1dead,672274793,m_flag); }while(0)  
#endif  
 
#define __mz_reboot_block_signal__() do{\  
 (void)signal(SIGINT, SIG_IGN);\  
 (void)signal(SIGTERM, SIG_IGN);\  
 (void)signal(SIGHUP, SIG_IGN);\  
}while(0)  
 
#define __mz_reboot_stop_process__() do{\  
 (void)setpgrp();\  
 __mz_reboot_syscall__(RB_ENABLE_CAD);\  
 (void)sync();\  
 (void)kill((pid_t)1, SIGTERM);\  
 (void)sleep(1u);\  
 (void)system("/sbin/initctl -r");\  
 (void)sync();\  
 (void)fputs("Sending SIGTERM to all processes.\n", stderr);\  
 (void)kill((pid_t)(-1), SIGTERM);\  
 (void)sleep(2u);\  
 (void)kill((pid_t)(-1), SIGKILL);\  
 (void)kill((pid_t)1, SIGQUIT);\  
 (void)sleep((unsigned int)1);\  
 (void)sync();\  
}while(0)  
 
#define __mz_reboot_swap_off__() do{ /* TODO */ }while(0)  
#define __mz_reboot_unmount__() do{ /* TODO */ }while(0)  
 
#define __mz_reboot__() do{\  
 __mz_reboot_block_signal__();\  
 __mz_reboot_stop_process__();\  
 __mz_reboot_swap_off__();\  
 __mz_reboot_unmount__();\  
 __mz_reboot_syscall__(RB_AUTOBOOT);\  
 (void)fputs("ERROR: reboot systemcall !\n", stderr);\  
}while(0)  
 
#define __mz_poweroff__() do{\  
 __mz_reboot_block_signal__();\  
 __mz_reboot_stop_process__();\  
 __mz_reboot_swap_off__();\  
 __mz_reboot_unmount__();\  
 __mz_reboot_syscall__(RB_POWER_OFF);\  
 (void)fputs("ERROR: reboot systemcall !\n", stderr);\  
}while(0)  
 
int main(void)  
{  
#if 0 
 __mz_poweroff__(); 
#else 
 __mz_reboot__();  
#endif 
 return(1);  
}  
 
#endif  
 
/* vim: set expandtab: */  
/* End of source */

설명

사용방법

코드

변경사항

2005/08/13