CPU_REBOOT(9) NetBSD Kernel Developer's Manual CPU_REBOOT(9)
cpu_reboot -- halt or reboot the system
#include <sys/reboot.h> void cpu_reboot(int howto, char *bootstr);
The cpu_reboot() function handles final system shutdown, and either halts or reboots the system. The exact action to be taken is determined by the flags passed in howto and by whether or not the system has finished auto- configuration. If the system has finished autoconfiguration, cpu_reboot() does the fol- lowing: 1. Sets the boothowto system variable from the howto argument. 2. If this is the first invocation of cpu_reboot() and the RB_NOSYNC flag is not set in howto, syncs and unmounts the system disks by calling vfs_shutdown(9) and sets the time of day clock by calling resettodr(9). 3. Disables interrupts. 4. If rebooting after a crash (i.e., if RB_DUMP is set in howto, but RB_HALT is not), saves a system crash dump. 5. Runs any shutdown hooks by calling doshutdownhooks(9). 6. Prints a message indicating that the system is about to be halted or rebooted. 7. If RB_HALT is set in howto, halts the system. Otherwise, reboots the system. If the system has not finished autoconfiguration, cpu_reboot() runs any shutdown hooks by calling doshutdownhooks(9), prints a message, and halts the system. If RB_STRING is set in howto, then the parameter bootstr is passed to the system boot loader on some ports.
doshutdownhooks(9), dumpsys(9), resettodr(9), vfs_shutdown(9) NetBSD 5.0 November 13, 1995 NetBSD 5.0
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