44 lines
1.0 KiB
C
Executable File
44 lines
1.0 KiB
C
Executable File
/*
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* Copyright (c) 1992, 1994 Sun Microsystems, Inc.
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* All rights reserved.
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*/
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#ident "@(#)processor_info.c 1.3 95/08/22 SMI"
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#include <sys/types.h>
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#include <sys/param.h>
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#include <sys/var.h>
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#include <sys/thread.h>
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#include <sys/cpuvar.h>
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#include <sys/kstat.h>
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#include <sys/uadmin.h>
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#include <sys/systm.h>
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#include <sys/errno.h>
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#include <sys/cmn_err.h>
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#include <sys/procset.h>
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#include <sys/processor.h>
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#include <sys/debug.h>
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/*
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* processor_info(2) - return information on a processor.
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*/
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int
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processor_info(processorid_t cpun, processor_info_t *infop)
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{
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cpu_t *cp;
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if ((cp = cpu_get(cpun)) == NULL)
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return (set_errno(EINVAL));
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/*
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* The spec indicates that the rest of the information is meaningless
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* if the CPU is offline, but if presented by the machine-dependent
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* layer, it is probably still accurate. It seems OK to copy it all in
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* either case.
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*/
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if (copyout((caddr_t)&cp->cpu_type_info, (caddr_t)infop,
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sizeof (processor_info_t)))
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return (set_errno(EFAULT));
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return (0);
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}
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