316ec49abd
doesn't give them enough stack to do much before blowing away the pcb. This adds MI and MD code to allow the allocation of an alternate kstack who's size can be speficied when calling kthread_create. Passing the value 0 prevents the alternate kstack from being created. Note that the ia64 MD code is missing for now, and PowerPC was only partially written due to the pmap.c being incomplete there. Though this patch does not modify anything to make use of the alternate kstack, acpi and usb are good candidates. Reviewed by: jake, peter, jhb
55 lines
2.2 KiB
C
55 lines
2.2 KiB
C
/*-
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* Copyright (c) 1999 Peter Wemm <peter@FreeBSD.org>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#ifndef _SYS_KTHREAD_H_
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#define _SYS_KTHREAD_H_
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#include <sys/cdefs.h>
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/*-
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* A kernel process descriptor; used to start "internal" daemons.
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*
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* Note: global_procpp may be NULL for no global save area.
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*/
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struct kproc_desc {
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char *arg0; /* arg 0 (for 'ps' listing) */
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void (*func)(void); /* "main" for kernel process */
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struct proc **global_procpp; /* ptr to proc ptr save area */
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};
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void kproc_shutdown(void *, int);
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void kproc_start(const void *);
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int kthread_create(void (*)(void *), void *, struct proc **,
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int flags, int pages, const char *, ...) __printflike(6, 7);
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void kthread_exit(int) __dead2;
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int kthread_resume(struct proc *); /* XXXKSE */
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int kthread_suspend(struct proc *, int); /* XXXKSE */
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void kthread_suspend_check(struct proc *); /* XXXKSE */
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#endif /* !_SYS_KTHREAD_H_ */
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