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1 office 1 # DO NOT EDIT. This file is generated from Config.src
2 #
3 # For a description of the syntax of this configuration file,
3 office 4 # see scripts/kbuild/config-language.txt.
1 office 5 #
6  
7 menu "System Logging Utilities"
8  
9 config BUSYBOX_CONFIG_KLOGD
3 office 10 bool "klogd"
1 office 11 default BUSYBOX_DEFAULT_KLOGD
12 help
3 office 13 klogd is a utility which intercepts and logs all
14 messages from the Linux kernel and sends the messages
15 out to the 'syslogd' utility so they can be logged. If
16 you wish to record the messages produced by the kernel,
17 you should enable this option.
1 office 18  
19 comment "klogd should not be used together with syslog to kernel printk buffer"
20 depends on BUSYBOX_CONFIG_KLOGD && BUSYBOX_CONFIG_FEATURE_KMSG_SYSLOG
21  
22 config BUSYBOX_CONFIG_FEATURE_KLOGD_KLOGCTL
23 bool "Use the klogctl() interface"
24 default BUSYBOX_DEFAULT_FEATURE_KLOGD_KLOGCTL
25 depends on BUSYBOX_CONFIG_KLOGD
26 select BUSYBOX_CONFIG_PLATFORM_LINUX
27 help
3 office 28 The klogd applet supports two interfaces for reading
29 kernel messages. Linux provides the klogctl() interface
30 which allows reading messages from the kernel ring buffer
31 independently from the file system.
1 office 32  
3 office 33 If you answer 'N' here, klogd will use the more portable
34 approach of reading them from /proc or a device node.
35 However, this method requires the file to be available.
1 office 36  
3 office 37 If in doubt, say 'Y'.
1 office 38 config BUSYBOX_CONFIG_LOGGER
3 office 39 bool "logger"
1 office 40 default BUSYBOX_DEFAULT_LOGGER
41 select BUSYBOX_CONFIG_FEATURE_SYSLOG
42 help
3 office 43 The logger utility allows you to send arbitrary text
44 messages to the system log (i.e. the 'syslogd' utility) so
45 they can be logged. This is generally used to help locate
46 problems that occur within programs and scripts.
1 office 47 config BUSYBOX_CONFIG_LOGREAD
3 office 48 bool "logread"
1 office 49 default BUSYBOX_DEFAULT_LOGREAD
50 help
3 office 51 If you enabled Circular Buffer support, you almost
52 certainly want to enable this feature as well. This
53 utility will allow you to read the messages that are
54 stored in the syslogd circular buffer.
1 office 55  
56 config BUSYBOX_CONFIG_FEATURE_LOGREAD_REDUCED_LOCKING
57 bool "Double buffering"
58 default BUSYBOX_DEFAULT_FEATURE_LOGREAD_REDUCED_LOCKING
59 depends on BUSYBOX_CONFIG_LOGREAD
60 help
3 office 61 'logread' output to slow serial terminals can have
62 side effects on syslog because of the semaphore.
63 This option make logread to double buffer copy
64 from circular buffer, minimizing semaphore
65 contention at some minor memory expense.
1 office 66  
67 config BUSYBOX_CONFIG_SYSLOGD
3 office 68 bool "syslogd"
1 office 69 default BUSYBOX_DEFAULT_SYSLOGD
70 help
3 office 71 The syslogd utility is used to record logs of all the
72 significant events that occur on a system. Every
73 message that is logged records the date and time of the
74 event, and will generally also record the name of the
75 application that generated the message. When used in
76 conjunction with klogd, messages from the Linux kernel
77 can also be recorded. This is terribly useful,
78 especially for finding what happened when something goes
79 wrong. And something almost always will go wrong if
80 you wait long enough....
1 office 81  
82 config BUSYBOX_CONFIG_FEATURE_ROTATE_LOGFILE
83 bool "Rotate message files"
84 default BUSYBOX_DEFAULT_FEATURE_ROTATE_LOGFILE
85 depends on BUSYBOX_CONFIG_SYSLOGD
86 help
3 office 87 This enables syslogd to rotate the message files
88 on his own. No need to use an external rotate script.
1 office 89  
90 config BUSYBOX_CONFIG_FEATURE_REMOTE_LOG
91 bool "Remote Log support"
92 default BUSYBOX_DEFAULT_FEATURE_REMOTE_LOG
93 depends on BUSYBOX_CONFIG_SYSLOGD
94 help
3 office 95 When you enable this feature, the syslogd utility can
96 be used to send system log messages to another system
97 connected via a network. This allows the remote
98 machine to log all the system messages, which can be
99 terribly useful for reducing the number of serial
100 cables you use. It can also be a very good security
101 measure to prevent system logs from being tampered with
102 by an intruder.
1 office 103  
104 config BUSYBOX_CONFIG_FEATURE_SYSLOGD_DUP
105 bool "Support -D (drop dups) option"
106 default BUSYBOX_DEFAULT_FEATURE_SYSLOGD_DUP
107 depends on BUSYBOX_CONFIG_SYSLOGD
108 help
3 office 109 Option -D instructs syslogd to drop consecutive messages
110 which are totally the same.
1 office 111  
112 config BUSYBOX_CONFIG_FEATURE_SYSLOGD_CFG
113 bool "Support syslog.conf"
114 default BUSYBOX_DEFAULT_FEATURE_SYSLOGD_CFG
115 depends on BUSYBOX_CONFIG_SYSLOGD
116 help
3 office 117 Supports restricted syslogd config. See docs/syslog.conf.txt
1 office 118  
119 config BUSYBOX_CONFIG_FEATURE_SYSLOGD_READ_BUFFER_SIZE
120 int "Read buffer size in bytes"
121 default BUSYBOX_DEFAULT_FEATURE_SYSLOGD_READ_BUFFER_SIZE
122 range 256 20000
123 depends on BUSYBOX_CONFIG_SYSLOGD
124 help
3 office 125 This option sets the size of the syslog read buffer.
126 Actual memory usage increases around five times the
127 change done here.
1 office 128  
129 config BUSYBOX_CONFIG_FEATURE_IPC_SYSLOG
130 bool "Circular Buffer support"
131 default BUSYBOX_DEFAULT_FEATURE_IPC_SYSLOG
132 depends on BUSYBOX_CONFIG_SYSLOGD
133 help
3 office 134 When you enable this feature, the syslogd utility will
135 use a circular buffer to record system log messages.
136 When the buffer is filled it will continue to overwrite
137 the oldest messages. This can be very useful for
138 systems with little or no permanent storage, since
139 otherwise system logs can eventually fill up your
140 entire filesystem, which may cause your system to
141 break badly.
1 office 142  
143 config BUSYBOX_CONFIG_FEATURE_IPC_SYSLOG_BUFFER_SIZE
144 int "Circular buffer size in Kbytes (minimum 4KB)"
145 default BUSYBOX_DEFAULT_FEATURE_IPC_SYSLOG_BUFFER_SIZE
146 range 4 2147483647
147 depends on BUSYBOX_CONFIG_FEATURE_IPC_SYSLOG
148 help
3 office 149 This option sets the size of the circular buffer
150 used to record system log messages.
1 office 151  
152 config BUSYBOX_CONFIG_FEATURE_KMSG_SYSLOG
153 bool "Linux kernel printk buffer support"
154 default BUSYBOX_DEFAULT_FEATURE_KMSG_SYSLOG
155 depends on BUSYBOX_CONFIG_SYSLOGD
156 select BUSYBOX_CONFIG_PLATFORM_LINUX
157 help
3 office 158 When you enable this feature, the syslogd utility will
159 write system log message to the Linux kernel's printk buffer.
160 This can be used as a smaller alternative to the syslogd IPC
161 support, as klogd and logread aren't needed.
1 office 162  
3 office 163 NOTICE: Syslog facilities in log entries needs kernel 3.5+.
1 office 164  
165 endmenu