File: [local] / sys / sys / wait.h (download)
Revision 1.1.1.1 (vendor branch), Tue Mar 4 16:16:15 2008 UTC (16 years, 2 months ago) by nbrk
Branch: OPENBSD_4_2_BASE, MAIN
CVS Tags: jornada-partial-support-wip, HEAD Changes since 1.1: +0 -0 lines
Import of OpenBSD 4.2 release kernel tree with initial code to support
Jornada 720/728, StrongARM 1110-based handheld PC.
At this point kernel roots on NFS and boots into vfs_mountroot() and traps.
What is supported:
- glass console, Jornada framebuffer (jfb) works in 16bpp direct color mode
(needs some palette tweaks for non black/white/blue colors, i think)
- saic, SA11x0 interrupt controller (needs cleanup)
- sacom, SA11x0 UART (supported only as boot console for now)
- SA11x0 GPIO controller fully supported (but can't handle multiple interrupt
handlers on one gpio pin)
- sassp, SSP port on SA11x0 that attaches spibus
- Jornada microcontroller (jmcu) to control kbd, battery, etc throught
the SPI bus (wskbd attaches on jmcu, but not tested)
- tod functions seem work
- initial code for SA-1111 (chip companion) : this is TODO
Next important steps, i think:
- gpio and intc on sa1111
- pcmcia support for sa11x0 (and sa1111 help logic)
- REAL root on nfs when we have PCMCIA support (we may use any of supported pccard NICs)
- root on wd0! (using already supported PCMCIA-ATA)
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/* $OpenBSD: wait.h,v 1.14 2006/04/27 02:17:21 tedu Exp $ */
/* $NetBSD: wait.h,v 1.11 1996/04/09 20:55:51 cgd Exp $ */
/*
* Copyright (c) 1982, 1986, 1989, 1993, 1994
* The Regents of the University of California. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* @(#)wait.h 8.2 (Berkeley) 7/10/94
*/
#ifndef _SYS_WAIT_H_
#define _SYS_WAIT_H_
#include <sys/cdefs.h>
/*
* This file holds definitions relevent to the wait4 system call
* and the alternate interfaces that use it (wait, wait3, waitpid).
*/
/*
* Macros to test the exit status returned by wait
* and extract the relevant values.
*/
#if __BSD_VISIBLE
#define _W_INT(w) (*(int *)&(w)) /* convert union wait to int */
#else
#define _W_INT(i) (i)
#endif
#define _WSTATUS(x) (_W_INT(x) & 0177)
#define _WSTOPPED 0177 /* _WSTATUS if process is stopped */
#define _WCONTINUED 0177777 /* process has continued */
#define WIFSTOPPED(x) ((_W_INT(x) & 0xff) == _WSTOPPED)
#define WSTOPSIG(x) (int)(((unsigned)_W_INT(x) >> 8) & 0xff)
#define WIFSIGNALED(x) (_WSTATUS(x) != _WSTOPPED && _WSTATUS(x) != 0)
#define WTERMSIG(x) (_WSTATUS(x))
#define WIFEXITED(x) (_WSTATUS(x) == 0)
#define WEXITSTATUS(x) (int)(((unsigned)_W_INT(x) >> 8) & 0xff)
#define WIFCONTINUED(x) ((_W_INT(x) & _WCONTINUED) == _WCONTINUED)
#if __XPG_VISIBLE
#define WCOREFLAG 0200
#define WCOREDUMP(x) (_W_INT(x) & WCOREFLAG)
#define W_EXITCODE(ret, sig) ((ret) << 8 | (sig))
#define W_STOPCODE(sig) ((sig) << 8 | _WSTOPPED)
#endif
/*
* Option bits for the third argument of wait4. WNOHANG causes the
* wait to not hang if there are no stopped or terminated processes, rather
* returning an error indication in this case (pid==0). WUNTRACED
* indicates that the caller should receive status about untraced children
* which stop due to signals. If children are stopped and a wait without
* this option is done, it is as though they were still running... nothing
* about them is returned.
*/
#define WNOHANG 1 /* don't hang in wait */
#define WUNTRACED 2 /* tell about stopped, untraced children */
#if __XPG_VISIBLE
#define WALTSIG 4 /* wait for child with alternate exit signal */
#endif
#define WCONTINUED 8 /* report a job control continued process */
#if __BSD_VISIBLE
/*
* Tokens for special values of the "pid" parameter to wait4.
*/
#define WAIT_ANY (-1) /* any process */
#define WAIT_MYPGRP 0 /* any process in my process group */
#include <sys/types.h>
/*
* Deprecated:
* Structure of the information in the status word returned by wait4.
* If w_stopval==WSTOPPED, then the second structure describes
* the information returned, else the first.
*/
union wait {
int w_status; /* used in syscall */
/*
* Terminated process status.
*/
struct {
#if _BYTE_ORDER == _LITTLE_ENDIAN
unsigned int w_Termsig:7, /* termination signal */
w_Coredump:1, /* core dump indicator */
w_Retcode:8, /* exit code if w_termsig==0 */
w_Filler:16; /* upper bits filler */
#endif
#if _BYTE_ORDER == _BIG_ENDIAN
unsigned int w_Filler:16, /* upper bits filler */
w_Retcode:8, /* exit code if w_termsig==0 */
w_Coredump:1, /* core dump indicator */
w_Termsig:7; /* termination signal */
#endif
} w_T;
/*
* Stopped process status. Returned
* only for traced children unless requested
* with the WUNTRACED option bit.
*/
struct {
#if _BYTE_ORDER == _LITTLE_ENDIAN
unsigned int w_Stopval:8, /* == W_STOPPED if stopped */
w_Stopsig:8, /* signal that stopped us */
w_Filler:16; /* upper bits filler */
#endif
#if _BYTE_ORDER == _BIG_ENDIAN
unsigned int w_Filler:16, /* upper bits filler */
w_Stopsig:8, /* signal that stopped us */
w_Stopval:8; /* == W_STOPPED if stopped */
#endif
} w_S;
};
#define w_termsig w_T.w_Termsig
#define w_coredump w_T.w_Coredump
#define w_retcode w_T.w_Retcode
#define w_stopval w_S.w_Stopval
#define w_stopsig w_S.w_Stopsig
#define WSTOPPED _WSTOPPED
#endif /* __BSD_VISIBLE */
#ifndef _KERNEL
#include <sys/types.h>
__BEGIN_DECLS
struct rusage; /* forward declaration */
pid_t wait(int *);
pid_t waitpid(pid_t, int *, int);
#if __BSD_VISIBLE
pid_t wait3(int *, int, struct rusage *);
pid_t wait4(pid_t, int *, int, struct rusage *);
#endif
__END_DECLS
#endif
#endif /* !_SYS_WAIT_H_ */