145 lines
4.3 KiB
Plaintext
145 lines
4.3 KiB
Plaintext
#
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# For a description of the syntax of this configuration file,
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# see the file kconfig-language.txt in the NuttX tools repository.
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#
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comment "System Logging"
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# Selected if the architecture has its own, built-in SYSLOGging enabled
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config ARCH_SYSLOG
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bool
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default n
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config RAMLOG
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bool "RAM log device support"
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default n
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---help---
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This is a driver that was intended to support debugging output,
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aka syslogging, when the normal serial output is not available.
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For example, if you are using a telnet or USB serial console,
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the debug output will get lost. However, the RAMLOG device should
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be usable even if system logging is disabled.
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This driver is similar to a pipe in that it saves the debugging
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output in a FIFO in RAM. It differs from a pipe in numerous
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details as needed to support logging.
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if RAMLOG
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config RAMLOG_SYSLOG
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bool "Use RAMLOG for SYSLOG"
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default n
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depends on SYSLOG && !ARCH_SYSLOG
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---help---
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Use the RAM logging device for the syslogging interface. If this feature
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is enabled (along with SYSLOG), then all debug output (only) will be re-directed
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to the circular buffer in RAM. This RAM log can be view from NSH using the
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'dmesg'command.
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Do not enable more than one SYSLOG device.
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config RAMLOG_CONSOLE
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bool "Use RAMLOG for /dev/console"
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default n
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depends on DEV_CONSOLE
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---help---
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Use the RAM logging device as a system console. If this feature is enabled (along
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with DEV_CONSOLE), then all console output will be re-directed to a circular
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buffer in RAM. This is useful, for example, if the only console is a Telnet
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console. Then in that case, console output from non-Telnet threads will go to
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the circular buffer and can be viewed using the NSH 'dmesg' command.
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config RAMLOG_BUFSIZE
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int "RAMLOG buffer size"
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default 1024
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depends on RAMLOG_SYSLOG || RAMLOG_CONSOLE
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---help---
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Size of the console RAM log. Default: 1024
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config RAMLOG_CRLF
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bool "RAMLOG CR/LF"
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default n
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---help---
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Pre-pend a carriage return before every linefeed that goes into the RAM log.
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config RAMLOG_NONBLOCKING
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bool "RAMLOG non-block reads"
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default y
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---help---
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Reading from the RAMLOG will never block if the RAMLOG is empty. If the RAMLOG
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is empty, then zero is returned (usually interpreted as end-of-file).
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config RAMLOG_NPOLLWAITERS
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int "RAMLOG number of poll waiters"
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default 4
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depends on !DISABLE_POLL
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---help---
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The maximum number of threads that may be waiting on the poll method.
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endif
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config DRIVER_NOTE
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bool "Scheduler instrumentation driver"
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default n
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depends on SCHED_INSTRUMENTATION_BUFFER
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---help---
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Enable building a serial driver that can be used by an application
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to read data from the in-memory, scheduler instrumentatin "note"
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buffer.
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config SYSLOG_INTBUFFER
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bool "Use interrupt buffer"
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default n
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---help---
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Enables an interrupt buffer that will be used to serialize debug
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output from interrupt handlers.
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config SYSLOG_INTBUFSIZE
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int "Interrupt buffer size"
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default 512
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depends on SYSLOG_INTBUFFER
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---help---
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The size of the interrupt buffer in bytes.
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config SYSLOG_TIMESTAMP
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bool "Prepend timestamp to syslog message"
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default n
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---help---
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Prepend timestamp to syslog message.
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if SYSLOG
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config SYSLOG_CHAR
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bool "System log character device support"
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default y
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depends on !ARCH_SYSLOG
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---help---
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Enable the generic character device for the SYSLOG. The full path to the
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SYSLOG device is provided by SYSLOG_DEVPATH. A valid character device (or
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file) must exist at this path. It will by opened by syslog_initialize.
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Do not enable more than one SYSLOG device.
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config SYSLOG_DEVPATH
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string "System log device"
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default "/dev/syslog"
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depends on SYSLOG_CHAR
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---help---
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The full path to the system logging device. For the RAMLOG SYSLOG device,
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this is normally "/dev/ramlog". For character SYSLOG devices, it should be
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some other existing character device (or file) supported by the configuration
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(such as "/dev/ttyS1")/
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endif
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config SYSLOG_CONSOLE
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bool "Use SYSLOG for /dev/console"
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default n
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depends on DEV_CONSOLE
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---help---
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Use the syslog logging device as a system console. If this feature is enabled
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(along with DEV_CONSOLE), then all console output will be re-directed to syslog
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output (syslog_putc). This is useful, for example, if the only console is a Telnet
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console. Then in that case, console output from non-Telnet threads will go to
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the syslog output.
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