1 | /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ |
2 | /* |
3 | * BSD Process Accounting for Linux - Definitions |
4 | * |
5 | * Author: Marco van Wieringen (mvw@planets.elm.net) |
6 | * |
7 | * This header file contains the definitions needed to implement |
8 | * BSD-style process accounting. The kernel accounting code and all |
9 | * user-level programs that try to do something useful with the |
10 | * process accounting log must include this file. |
11 | * |
12 | * Copyright (C) 1995 - 1997 Marco van Wieringen - ELM Consultancy B.V. |
13 | * |
14 | */ |
15 | |
16 | #ifndef _UAPI_LINUX_ACCT_H |
17 | #define _UAPI_LINUX_ACCT_H |
18 | |
19 | #include <linux/types.h> |
20 | |
21 | #include <asm/param.h> |
22 | #include <asm/byteorder.h> |
23 | |
24 | /* |
25 | * comp_t is a 16-bit "floating" point number with a 3-bit base 8 |
26 | * exponent and a 13-bit fraction. |
27 | * comp2_t is 24-bit with 5-bit base 2 exponent and 20 bit fraction |
28 | * (leading 1 not stored). |
29 | * See linux/kernel/acct.c for the specific encoding systems used. |
30 | */ |
31 | |
32 | typedef __u16 comp_t; |
33 | typedef __u32 comp2_t; |
34 | |
35 | /* |
36 | * accounting file record |
37 | * |
38 | * This structure contains all of the information written out to the |
39 | * process accounting file whenever a process exits. |
40 | */ |
41 | |
42 | #define ACCT_COMM 16 |
43 | |
44 | struct acct |
45 | { |
46 | char ac_flag; /* Flags */ |
47 | char ac_version; /* Always set to ACCT_VERSION */ |
48 | /* for binary compatibility back until 2.0 */ |
49 | __u16 ac_uid16; /* LSB of Real User ID */ |
50 | __u16 ac_gid16; /* LSB of Real Group ID */ |
51 | __u16 ac_tty; /* Control Terminal */ |
52 | /* __u32 range means times from 1970 to 2106 */ |
53 | __u32 ac_btime; /* Process Creation Time */ |
54 | comp_t ac_utime; /* User Time */ |
55 | comp_t ac_stime; /* System Time */ |
56 | comp_t ac_etime; /* Elapsed Time */ |
57 | comp_t ac_mem; /* Average Memory Usage */ |
58 | comp_t ac_io; /* Chars Transferred */ |
59 | comp_t ac_rw; /* Blocks Read or Written */ |
60 | comp_t ac_minflt; /* Minor Pagefaults */ |
61 | comp_t ac_majflt; /* Major Pagefaults */ |
62 | comp_t ac_swaps; /* Number of Swaps */ |
63 | /* m68k had no padding here. */ |
64 | #if !defined(CONFIG_M68K) || !defined(__KERNEL__) |
65 | __u16 ac_ahz; /* AHZ */ |
66 | #endif |
67 | __u32 ac_exitcode; /* Exitcode */ |
68 | char ac_comm[ACCT_COMM + 1]; /* Command Name */ |
69 | __u8 ac_etime_hi; /* Elapsed Time MSB */ |
70 | __u16 ac_etime_lo; /* Elapsed Time LSB */ |
71 | __u32 ac_uid; /* Real User ID */ |
72 | __u32 ac_gid; /* Real Group ID */ |
73 | }; |
74 | |
75 | struct acct_v3 |
76 | { |
77 | char ac_flag; /* Flags */ |
78 | char ac_version; /* Always set to ACCT_VERSION */ |
79 | __u16 ac_tty; /* Control Terminal */ |
80 | __u32 ac_exitcode; /* Exitcode */ |
81 | __u32 ac_uid; /* Real User ID */ |
82 | __u32 ac_gid; /* Real Group ID */ |
83 | __u32 ac_pid; /* Process ID */ |
84 | __u32 ac_ppid; /* Parent Process ID */ |
85 | /* __u32 range means times from 1970 to 2106 */ |
86 | __u32 ac_btime; /* Process Creation Time */ |
87 | #ifdef __KERNEL__ |
88 | __u32 ac_etime; /* Elapsed Time */ |
89 | #else |
90 | float ac_etime; /* Elapsed Time */ |
91 | #endif |
92 | comp_t ac_utime; /* User Time */ |
93 | comp_t ac_stime; /* System Time */ |
94 | comp_t ac_mem; /* Average Memory Usage */ |
95 | comp_t ac_io; /* Chars Transferred */ |
96 | comp_t ac_rw; /* Blocks Read or Written */ |
97 | comp_t ac_minflt; /* Minor Pagefaults */ |
98 | comp_t ac_majflt; /* Major Pagefaults */ |
99 | comp_t ac_swaps; /* Number of Swaps */ |
100 | char ac_comm[ACCT_COMM]; /* Command Name */ |
101 | }; |
102 | |
103 | /* |
104 | * accounting flags |
105 | */ |
106 | /* bit set when the process/task ... */ |
107 | #define AFORK 0x01 /* ... executed fork, but did not exec */ |
108 | #define ASU 0x02 /* ... used super-user privileges */ |
109 | #define ACOMPAT 0x04 /* ... used compatibility mode (VAX only not used) */ |
110 | #define ACORE 0x08 /* ... dumped core */ |
111 | #define AXSIG 0x10 /* ... was killed by a signal */ |
112 | #define AGROUP 0x20 /* ... was the last task of the process (task group) */ |
113 | |
114 | #if defined(__BYTE_ORDER) ? __BYTE_ORDER == __BIG_ENDIAN : defined(__BIG_ENDIAN) |
115 | #define ACCT_BYTEORDER 0x80 /* accounting file is big endian */ |
116 | #elif defined(__BYTE_ORDER) ? __BYTE_ORDER == __LITTLE_ENDIAN : defined(__LITTLE_ENDIAN) |
117 | #define ACCT_BYTEORDER 0x00 /* accounting file is little endian */ |
118 | #else |
119 | #error unspecified endianness |
120 | #endif |
121 | |
122 | #ifndef __KERNEL__ |
123 | #define ACCT_VERSION 2 |
124 | #define AHZ (HZ) |
125 | #endif /* __KERNEL */ |
126 | |
127 | |
128 | #endif /* _UAPI_LINUX_ACCT_H */ |
129 | |