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118 lines
3.6 KiB
C
118 lines
3.6 KiB
C
4 years ago
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/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
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/*
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* BSD Process Accounting for Linux - Definitions
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*
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* Author: Marco van Wieringen (mvw@planets.elm.net)
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*
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* This header file contains the definitions needed to implement
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* BSD-style process accounting. The kernel accounting code and all
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* user-level programs that try to do something useful with the
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* process accounting log must include this file.
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*
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* Copyright (C) 1995 - 1997 Marco van Wieringen - ELM Consultancy B.V.
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*
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*/
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#ifndef _LINUX_ACCT_H
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#define _LINUX_ACCT_H
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#include <linux/types.h>
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#include <asm/param.h>
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#include <asm/byteorder.h>
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/*
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* comp_t is a 16-bit "floating" point number with a 3-bit base 8
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* exponent and a 13-bit fraction.
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* comp2_t is 24-bit with 5-bit base 2 exponent and 20 bit fraction
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* (leading 1 not stored).
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* See linux/kernel/acct.c for the specific encoding systems used.
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*/
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typedef __u16 comp_t;
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typedef __u32 comp2_t;
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/*
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* accounting file record
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*
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* This structure contains all of the information written out to the
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* process accounting file whenever a process exits.
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*/
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#define ACCT_COMM 16
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struct acct
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{
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char ac_flag; /* Flags */
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char ac_version; /* Always set to ACCT_VERSION */
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/* for binary compatibility back until 2.0 */
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__u16 ac_uid16; /* LSB of Real User ID */
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__u16 ac_gid16; /* LSB of Real Group ID */
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__u16 ac_tty; /* Control Terminal */
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__u32 ac_btime; /* Process Creation Time */
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comp_t ac_utime; /* User Time */
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comp_t ac_stime; /* System Time */
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comp_t ac_etime; /* Elapsed Time */
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comp_t ac_mem; /* Average Memory Usage */
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comp_t ac_io; /* Chars Transferred */
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comp_t ac_rw; /* Blocks Read or Written */
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comp_t ac_minflt; /* Minor Pagefaults */
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comp_t ac_majflt; /* Major Pagefaults */
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comp_t ac_swaps; /* Number of Swaps */
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/* m68k had no padding here. */
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__u16 ac_ahz; /* AHZ */
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__u32 ac_exitcode; /* Exitcode */
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char ac_comm[ACCT_COMM + 1]; /* Command Name */
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__u8 ac_etime_hi; /* Elapsed Time MSB */
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__u16 ac_etime_lo; /* Elapsed Time LSB */
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__u32 ac_uid; /* Real User ID */
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__u32 ac_gid; /* Real Group ID */
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};
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struct acct_v3
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{
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char ac_flag; /* Flags */
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char ac_version; /* Always set to ACCT_VERSION */
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__u16 ac_tty; /* Control Terminal */
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__u32 ac_exitcode; /* Exitcode */
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__u32 ac_uid; /* Real User ID */
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__u32 ac_gid; /* Real Group ID */
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__u32 ac_pid; /* Process ID */
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__u32 ac_ppid; /* Parent Process ID */
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__u32 ac_btime; /* Process Creation Time */
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float ac_etime; /* Elapsed Time */
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comp_t ac_utime; /* User Time */
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comp_t ac_stime; /* System Time */
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comp_t ac_mem; /* Average Memory Usage */
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comp_t ac_io; /* Chars Transferred */
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comp_t ac_rw; /* Blocks Read or Written */
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comp_t ac_minflt; /* Minor Pagefaults */
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comp_t ac_majflt; /* Major Pagefaults */
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comp_t ac_swaps; /* Number of Swaps */
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char ac_comm[ACCT_COMM]; /* Command Name */
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};
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/*
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* accounting flags
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*/
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/* bit set when the process ... */
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#define AFORK 0x01 /* ... executed fork, but did not exec */
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#define ASU 0x02 /* ... used super-user privileges */
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#define ACOMPAT 0x04 /* ... used compatibility mode (VAX only not used) */
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#define ACORE 0x08 /* ... dumped core */
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#define AXSIG 0x10 /* ... was killed by a signal */
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#if defined(__BYTE_ORDER) ? __BYTE_ORDER == __BIG_ENDIAN : defined(__BIG_ENDIAN)
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#define ACCT_BYTEORDER 0x80 /* accounting file is big endian */
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#elif defined(__BYTE_ORDER) ? __BYTE_ORDER == __LITTLE_ENDIAN : defined(__LITTLE_ENDIAN)
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#define ACCT_BYTEORDER 0x00 /* accounting file is little endian */
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#else
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#error unspecified endianness
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#endif
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#define ACCT_VERSION 2
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#define AHZ (HZ)
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#endif /* _LINUX_ACCT_H */
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